Wednesday, March 28, 2018

What Is A Quality Injection Mould Maker

(Posted from China Injection Mold blog)

An injection mould maker is a machine for producing parts by injecting at high pressure, usually plastic material into a mould. The plastic used are thermoplastic and thermosetting polymers. Material for moulding is conveyed into a heated barrel where it is mixed and then injected into a mould cavity where it hardens by cooling into the shape of the mould. Mould may be made of steel, aluminium and are themselves made with extreme precision so that the desired parts are created to match the design. Vice versa, those parts are also designed so that they are well suited  for injection moulding. The adaptability of injection moulding lies in this breadth of design consideration and possibilities, of both the injection mould maker in China and the item to be moulded.


automobile injection mold
automobile injection mold

Injection moulding finds application in almost all manufactured items, from plastic bottles to car parts.


  • A quality injection mould maker (person) should support his customer right from the concept stage to the mass production stage. He should know what questions to ask and anticipate where he is going to face difficulties in the moulding process while the part is being designed

  • A quality injection mould maker should be complete and integrated and yet have a variety of systems for different applications.

  • It would by virtue of being a quality item, be assisted by robotic systems.

  • They should be environmentally friendly, and have energy and space saving features.

  • The manufacturers should offer technical support and systems for factory automation.

  • Water circuits in a mould maker should not be looped as this leads to warpage.

  • The quality injection mould maker (person) should be present at the design stage of the part to anticipate difficulties in mould making and design.

  • Use of 3D rapid prototyping from 3D computer models is useful in injection moulding eg. To design water cooling channels along the contour of the mould which improves the quality of the parts and improves cycle times.

  • An internal storage memory for 50 molds is available

  • Fault diagnosis with alarm messages is possible

  • The command control centre should be shielded against magnetic interference.

  • A weekly schedule should be incorporated.

  • A quality injection mould maker that is driven by an electric motor has the following advantages over a hydraulic moulding machine

  1. A significant energy reduction of 40% to 50% is possible by electric compared to a hydraulic injection mould

  2. Stabilization of the molding process is achieved by use of the servo motor in the injection process

  3. Noise generation level is much lower.

  4. Molding cycle can be shortened by using different motors for different stages of the moulding cycle and running them in parallel, like opening, closing, injection, ejection, and weighing

  5. Injection speed can be increased

  6. Since no oil is used, it is an environmentally cleaner process.

  7. A digital display is always welcome

  • They should be low maintenance

  • A two year warranty which covers the replacement and or repair of any part that has a manufacturing defect.

Injection mold makers in China are supplying plastic injection moulding machines all over the world, at very competitive rates. They are also setting up offices all over the world to serve their customers better.


 



Read more about What Is A Quality Injection Mould Maker

What Is A Quality Injection Mould Maker

(Posted from China Injection Mold blog)

An injection mould maker is a machine for producing parts by injecting at high pressure, usually plastic material into a mould. The plastic used are thermoplastic and thermosetting polymers. Material for moulding is conveyed into a heated barrel where it is mixed and then injected into a mould cavity where it hardens by cooling into the shape of the mould. Mould may be made of steel, aluminium and are themselves made with extreme precision so that the desired parts are created to match the design. Vice versa, those parts are also designed so that they are well suited  for injection moulding. The adaptability of injection moulding lies in this breadth of design consideration and possibilities, of both the injection mould maker in China and the item to be moulded.


automobile injection mold
automobile injection mold

Injection moulding finds application in almost all manufactured items, from plastic bottles to car parts.


  • A quality injection mould maker (person) should support his customer right from the concept stage to the mass production stage. He should know what questions to ask and anticipate where he is going to face difficulties in the moulding process while the part is being designed

  • A quality injection mould maker should be complete and integrated and yet have a variety of systems for different applications.

  • It would by virtue of being a quality item, be assisted by robotic systems.

  • They should be environmentally friendly, and have energy and space saving features.

  • The manufacturers should offer technical support and systems for factory automation.

  • Water circuits in a mould maker should not be looped as this leads to warpage.

  • The quality injection mould maker (person) should be present at the design stage of the part to anticipate difficulties in mould making and design.

  • Use of 3D rapid prototyping from 3D computer models is useful in injection moulding eg. To design water cooling channels along the contour of the mould which improves the quality of the parts and improves cycle times.

  • An internal storage memory for 50 molds is available

  • Fault diagnosis with alarm messages is possible

  • The command control centre should be shielded against magnetic interference.

  • A weekly schedule should be incorporated.

  • A quality injection mould maker that is driven by an electric motor has the following advantages over a hydraulic moulding machine

  1. A significant energy reduction of 40% to 50% is possible by electric compared to a hydraulic injection mould

  2. Stabilization of the molding process is achieved by use of the servo motor in the injection process

  3. Noise generation level is much lower.

  4. Molding cycle can be shortened by using different motors for different stages of the moulding cycle and running them in parallel, like opening, closing, injection, ejection, and weighing

  5. Injection speed can be increased

  6. Since no oil is used, it is an environmentally cleaner process.

  7. A digital display is always welcome

  • They should be low maintenance

  • A two year warranty which covers the replacement and or repair of any part that has a manufacturing defect.

Injection mold makers in China are supplying plastic injection moulding machines all over the world, at very competitive rates. They are also setting up offices all over the world to serve their customers better.


 



Read more about What Is A Quality Injection Mould Maker

Thursday, March 22, 2018

How To Make Precision Plastic Molded Parts

(Posted from China Injection Mold blog)

Precision Plastic molded parts can be made only by Plastic injection molding. This is the preferred method because injection molding has the advantages of high tolerance precision work.


The following points go into making Precision Plastic molds.


plastic injection molded parts
plastic injection molded parts
  1. Using the proper clamping force

Injection molding machine – also known as presses, consist of a material hopper, an injection ram or plunger, and a heating unit. Plastic is injected into the mold through the sprue orifice. These presses are rated by tonnage which is the calculation of the clamping force the press can exert. This force keeps the mold closed while the molding is going on. By rule of thumb, the force needed is determined by the projected surface area of the part being molded. Tonnage can vary from a few to a few thousand. The nature of the material also determines the clamping force. If the plastic is stiff, more injection pressure and more clamping force is needed to keep the mold closed.  Also, larger parts require greater clamping forces. These points should be kept in mind when molding.


  1. Using the proper material for Molds – or die refers to the tooling used to produce the plastic parts by molding. They are expensive to manufacture and were preferred to be used only in large scale production. They are typically constructed from hardened steel, beryllium-copper alloys or aluminum. Steel though expensive, is more long lasting and its high initial cost will definitely be offset by the number of times it can be used. Pre-hardened steel is used for larger parts molding. The mold is heat treated after machining for longer life.

Aluminum Injection Molds cost much less and are used for mass manufacture of small parts. Aircraft quality aluminum is used for making molds. They offer quicker turnaround times because of their high heat dissipation quality. Since they are not wear resistant, they can be coated with fiberglass reinforced material.


Beryllium Copper also is used for quick heat removal especially where the shear heat is more. Shear heat is the phenomenon of heat trapping in a viscous material like melted plastic when the mechanical energy of the plastic granules when they are injected under high pressure is converted to heat energy.


  1. Using the right Gate

The main enemy of injection molding is stress. The molecules of plastic undergo severe stresses as they are extruded out of the injector into the crevices and corners of the mold to take that shape. They are forced to take sharp corners instead of their natural flow movement. These stresses when the part is cooled get locked into the part and cause warping, cracking, sink marks etc.


Gates are provided at the point of injection to prevent warping. Depending on the shape and size of the part, different types of gates are used.


  1. State of the art Machining

Using the proper machining to achieve very tight tolerances for their clients molded products. Proper initial designing is very important and can be outsourced to experts on a turnkey project basis. State of the art CNC machining, large boring mills, Blanchard grinding capabilities, conventional EDMs all go into making that perfect precision plastic mold.


Mold manufacturers in China have incorporated these and many more features to produce high quality Chinese molds that are in demand the world over at a fraction of the cost at which they are available in western countries.



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Saturday, March 17, 2018

Latest China Two Piece Mould News

(Posted from China Injection Mold blog)

Image from page 474 of “The pathway of life ; Intended to lead the young and the old into paths of happiness, and to prepare them for a holy companionship with him whose kingdom is as boundless as his love” (1894)
china two piece mould
Image by Internet Archive Book Images
Identifier: pathwayoflifeint00talm
Title: The pathway of life ; Intended to lead the young and the old into paths of happiness, and to prepare them for a holy companionship with him whose kingdom is as boundless as his love
Year: 1894 (1890s)
Authors: Talmage, T. De Witt (Thomas De Witt), 1832-1902
Subjects: Christian life and character
Publisher: Philadelphia, Pub. and manufactured by Historical Pub. Co. for the Christian Herald
Contributing Library: Princeton Theological Seminary Library
Digitizing Sponsor: Internet Archive


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About This Book: Catalog Entry
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Text Appearing Before Image:
-fold addi-tional forces of the resurrection eye ? Why should it be thought a thing incredible with you that God should raisethe dead ? Things all around us suggest it. The blossoming woods, where lovedelights to make his bower, are re-clothed in beauty with every spring. Out ofwhat grew all these flowers ? Out of the mould and the earth. Resurrected !Resurrected ! The radiant butterfly, where did it come from ? The loathsomecaterpillar. That albatross that smites the tempest with its wing, where did itcome from ? A senseless shell. SEED-LIFE RESURRECTED. Near Bergerac, France, in a Celtic tomb under a block, were found flower seedthat had been buried 2000 years. The explorer took the flower seed and plantedit, and it came up; it bloomed in bluebell and heliotrope. Two thousand yearsago buried, yet resurrected ! THE PATHWAY OF LIFE. 485 A traveler says he found in a mummy-pit in Egypt garden peas that had beenburied there 3000 years ago. He brought them out, and on the fourth of June,


Text Appearing After Image:
ROLLING AWAY THE STONE FROM THE GRAVE OF LAZARUS. 1844, he planted them, and in thirty days they sprang up. Buried 3000 years, yetresurrected ! Where did all this silk come from—the silk that adorns your persons and your 486 THE PATHWAY OF LIFE. homes ? In the hollow of a staff a Greek missionar}^ brought from China to Europethe progenitors of those worms that now supply the silk markets of many nations.The pageantry of bannered host and the luxurious articles of commercial emporiumblazing out from the silk worms. And who shall be surprised if out of this insig-nificant earthly body, this insignificant earthly life, our bodies unfold into some-thing worthy of the coming eternities. Put silver into nitric acid and it dissolves. Is the silver gone forever ? No.Put in some pieces of copper and the silver reappears. If one force dissoh-es,another force organizes. The insects flew and the worms crawled last autumn feebler and feebler, andthen stopped. They have taken no food, they want n


Note About Images
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Monday, March 12, 2018

Nice Pipe Mould China photos

(Posted from China Injection Mold blog)

A few nice pipe mould china images I found:


Image from page 363 of “The Horticulturist and journal of rural art and rural taste” (1846)
pipe mould china
Image by Internet Archive Book Images
Identifier: horticulturistjo12alba
Title: The Horticulturist and journal of rural art and rural taste
Year: 1846 (1840s)
Authors:
Subjects: Gardening
Publisher: Albany, N.Y. : Luther Tucker
Contributing Library: The LuEsther T Mertz Library, the New York Botanical Garden
Digitizing Sponsor: The LuEsther T Mertz Library, the New York Botanical Garden


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Text Appearing Before Image:
itself woven of stout willows, or made from well selected pieces of treelojipings—the hazel, especially. In the fall, such a basket might be filled with bulbs, andcovered thick with leaves in the winter. When these come out, it may be furnished withshowy annuals, or a mixture of half hardy shrubby exotics. The plants best suited for summer blooming in rustic baskets, and onhollow tree stumps, are fuchsias, calceolarias,geraniums, hydrangeas, petunias, cinerarias,China roses, verbenas, nemophilas, mignonette,pimpernel of all kinds, and mimulas. The stilf-growing plants should occupy theentre, and those of drooping habit the sides.If ferns are grown with flowers, the soil shouldbe a soft peat, with a mixture of leaf mould andsandy loam. These ornaments require frequentattention, and copious supplies of water. Theyshould be covered with pitch inside, to keepthem from the ravages of damp. On a largescale, there is scarcely anything so suitable to cover the handles as the Dutchmans pipe.


Text Appearing After Image:
Slugs.—Procure a gallon or two of wheaten bran, or brewers grains, and on a mild even-ing, just l)efore or after a shower, place little patches of it about the garden in all directions,especially near box-edgings and similar places of retreat. About nine oclock at night, pro-vided with a good lantern and candle, and armed with a potful of air-slaked lime, visit allthe little patches of bran in succession ; you will probably be astonished at the vast num-bers of these enemies congregated and feasting at your expense, when, with the pot of lime,you can give them such a dusting as will prevent them from ever again troubling you. Ifthis plan be persevered in for a short time, the garden will be effectually cleared of slugs.I have applied this remedy for many years, and have never known it to fail.—//. Mitchell. Ducks are said to be great destroyers of slugs and other vermin. Young broods may beallowed to wander about the garden every evening, and it is amusing to see the zeal withwhic


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Monday, March 5, 2018

Cool Mould Produce Factory images

(Posted from China Injection Mold blog)

Check out these mould produce factory images:


Pavlovsk Palace. Павловский Дворец.
mould produce factory
Image by Peer.Gynt
en.wikipedia.org/wiki/Pavlovsk_Palace


Pavlovsk Palace is an 18th-century Russian Imperial residence built by Paul I of Russia in Pavlovsk, near Saint Petersburg. After his death, it became the home of his widow, Maria Feodorovna. The palace and the large English garden surrounding it are now a Russian state museum and public park.

Creation


In 1777 The Empress Catherine II of Russia gave a parcel of a thousand hectares of forest along the winding Slavyanka River, four kilometers from her residence at Tsarskoye Selo, to her son and heir Paul I and his wife Maria Feodorovna, to celebrate the birth of their first son, the future Alexander I of Russia.

At the time the land was given to Paul and Maria Feodorovna, there were two rustic log lodges in the called ‘Krik’ and ‘Krak.’ Paul and his wife spent the summers of 1777 to 1780 in Krik, while their new homes and the garden were being built.[1]

They began by building two wooden buildings, one kilometer apart. Paul’s house, a two-story house in the Dutch style, with small gardens, was called "Marienthal", or the "Valley of Maria." Maria’s house was a small wooden house with a cupola, flower beds, named "Paullust", or "Paul’s Joy." Paul and Maria Feodorovna began to create picturesque "ruins", a Chinese kiosk, Chinese bridges and classical temples in the English landscape garden style which had spread rapidly across Europe in the second half of the 18th century.[2]

In 1780, Catherine the Great loaned her official architect, the Scotsman Charles Cameron, to design a palace on a hillside overlooking the Slavyanka River, near the site of Marienthal.

Cameron had studied under English architect Isaac Ware, who was close to the architect of Chiswick House, the villa of Lord Burlington one of the earliest and finest Palladian houses in England. Through this connection Cameron became familiar with the original plans of Palladio, which were in the personal collection of Lord Burlington. This style was the major influence on Cameron when he designed Pavlovsk.[3]

Cameron began his project not with the palace itself but with two classical pavilions. The first was the Temple of Friendship, a circular Dorian temple with sixteen columns supporting a low dome, containing a statute of Catherine the Great. It was placed at a bend of the Slavyanka River, below the future palace, and was surrounded by silver poplars and transplanted Siberian pines. The second was the Apollo Colonnade, a double row of columns with an entablature, forming a setting for a reproduction of a reproduction of the Belvedere Apollo. It was placed at the entrance of the park, and it was made of porous limestone with a coarse finish the surfaces to suggest that they had been aged by centuries of weather. At the same time the Slavyanka River was dammed, to create a lake which would mirror the facade of the palace above.[4]

Maria Feodorovna also insisted in having several rustic structures which recalled the palace where she grew up at Étupes, forty miles from Basel, in what was then the Duchy of Württemberg and today is in Alsace. Cameron constructed a small Swiss chalet with a library; a dairy of rough stones with a thatched roof, where milk products were kept and prepared, and an aviary in the form of a small classical temple with metal netting between the Dorian columns, which was filled with nightingale, goldfinch, starling and quail.

For the palace itself, Cameron conceived a country house which seems to have been based on a design of Palladio shown in a woodcut in his book Quattro libri dell’architectura, for the Villa Tressino at Meledo in Italy. This same drawing was later used by Thomas Jefferson in his design for the University of Virginia. The palace he designed had a cube-shaped central block three stories high with a low dome supported by sixty-four columns. On either side of the building were two single story colonnades of curved open winged galleries connected to service buildings one and a half stories high. Each facade of the palace was decorated with molded friezes and reliefs.[5]

In September 1781, as construction of the Pavlovsk Palace began, Paul and Maria set off on a journey to Austria, Italy, France and Germany. They traveled under the incognito of "The Count and Countess of the North". During their travels they saw the palaces and French gardens of Versailles and Chantilly, which strongly influenced the future appearance of Pavlovsk Park. King Louis XVI presented them with four Gobelins tapestries, Marie Antoinette presented Maria Feodorovna with a sixty-piece toilet set of Sèvres porcelain, and they ordered more sets of porcelain and purchased statues, busts, paintings, furniture and paintings, all for Pavlovsk. While they traveled, they kept in contact almost daily with Kuchelbecker, the supervisor of construction at Pavlovsk, sending back and forth drawings, plans and notes on the smallest details.[6]

Paul and Maria Feodorovna returned in November 1782, and they continued to fill Pavlovsk with art objects. A shipment of antique marbles, statues, busts, urns, and pottery discovered and purchased at Pompei, arrived in 1783. Sixteen sets of furniture, over two hundred pieces, were ordered from Paris between 1783 and 1785 for the State Rooms. In 1784, twelve Hubert Robert landscapes were commissioned for Pavlovsk. The couple purchased ninety-six clocks from Europe. The Imperial Glass factory, made special chandeliers for each room.

In the midst of the construction, and tensions grew between her and Cameron; Cameron was used to the unlimited budget for materials given him by Catherine the Great, while Catherine gave very little money to Paul; and Cameron was annoyed by the furniture, tapestries and fireplaces brought back from Europe by Maria Feodorovna without consulting him. Maria Feodorovna in turn was annoyed by the bright polychrome decoration and Pompeian arabesques used by Cameron, and wanted more delicate colors, and Paul did not like anything that resembled the style of his mother’s house, the Catherine Palace at Tsarskoye Selo.

The tensions led to a parting in 1786. Cameron left to build a new palace for Catherine in the Crimea. He had finished entry vestibule and the five rooms of the private apartments. The work of decorating the interior was taken over by an Italian architect, Vincenzio Brenna, from Florence, who had come to Russia in 1783. Brenna designed interiors which reflected Paul’s taste for Roman classicism. He created the white and gold Halls of War and Peace, on either side of the Greek Hall by Cameron, which had a colonnade of green false marble columns, resembling a Greek temple. He made the Italian hall into a replica of a Roman temple, and he built the State Bedroom for Maria Feodorovna as an imitation of the state bedroom of the King of France, with a huge gilded bed, and cream silk wallpaper painted in tempura with colorful flowers, fruit, musical instruments and gardening tools.[6]

Catherine the Great died in 1796, and Paul became Emperor. He decided to enlarge Pavlovsk into a palace suitable for a royal residence, adding two new wings on either side of the main building, and a church attached to the south wing. Between 1797 and 1799, he lavished money and the finest materials on Brenna’s interiors.

The reign of Emperor Paul did not last long. He alienated the nobles, and became increasingly fearful of conspiracies. His fears were justified; the Emperor Paul was murdered by members of his court in 1801, and his son Alexander became Emperor. Pavlovsk Palace became the residence of the Empress Maria Feodorovna (1759–1828), the mother of both Emperor Alexander I of Russia and Emperor Nicholas I of Russia. She turned the house into a memorial to her murdered husband, filled with his furniture and portraits, and made the house a showcase for finest 18th century French furnishings, paintings, sculpture and porcelain.

Another disaster struck Pavlovsk in 1803; a fire caused by a defective chimney destroyed a major part of the interior of the palace, including all the decor of the State Apartments and living rooms. Most of the furniture was saved, along with some door panels, fireplaces and mirrors, but most of the Palace had to be rebuilt.

Maria Feodorovna brought Cameron and Brenna’s young assistant, the Italian architect Carlo Rossi, to help restore the Palace. She also employed a Russian architect, Andrei Voronykhin, who had been born a serf, and was trained in decoration and design, who rose to become the architect of Kazan Cathedral in St. Petersburg. Voronykhin was named chief architect of Pavlovsk by Maria Feodorovna. He brought back the architect Quarenghi, who had redecorated five rooms on the main floor, to recreate his work. He remade some of the rooms, such as the Tapestry Room and the State Bedroom, exactly as they had been, but for other rooms he added decoration inspired by Roman models discovered at Pompeii and Herculaneum; Roman-style lamps, furniture, Roman couches, and chairs copied after those of Roman senators. Following the French taste of the time for Egyptian art, he added black Egyptian statues in the entry vestibule of the Palace, He also redesigned the Greek and Italian halls, replacing the molding on the walls with false marble, and he added a Russian touch; fireplaces faced with Russian lapis-lazuli and jasper, which had originally been in the Mikhailovsky Palace that Paul had built in St. Petersburg. Voronykhin also made plans for a semi-circular library in one of the wings, which was later built by Carlo Rossi, and he redesigned the private apartments of Maria Feodorovna on the ground floor, which included a library, boudoir and bedroom. He installed French doors and large windows in the apartment, so the flower garden outside seemed to be part of the interior.[7]

In 1805 Voronykhin built the Centaur bridge in the park, and the Visconti bridge, which crossed the Slavyanka at a point it was filled with water lilies. His last construction in the park was the Rose Pavilion, built in 1811, a simple structure surrounded entirely by rosebushes. The Rose Pavilion was the site of a grand fete on July 12, 1814, celebrating the return of Alexander I to St. Petersburg after the defeat of Napoleon. For the occasion the architect Pietro de Gottardo Gonzaga built a ballroom the size of the Rose Pavilion itself in just seventeen days, and surrounded it with huge canvases of Russian villagers celebrating the victory. The ball inside the pavilion opened with a Polonaise led by Alexander and his mother, and ended with a huge display of fireworks.

In her later years Maria Feodorovna had a literary salon at Pavlovsk, which was frequented by the poet Vasily Zhukovsky, the fable writer Ivan Krylov, and the historian Nikolai Karamzin.

The last great St. Petersburg architect to work at Pavlovsk was Carlo Rossi, who in 1824 designed the library, which contained more than twenty thousand books as well as collections of rare coins and butterflies. He also designed the Corner Salon, where Maria Feodorovna received guests such as the first American Ambassador to Russia, John Quincy Adams, and the Lavender Room, whose walls were made of lilac-colored false marble, matching the lilac flowers outside the windows. These rooms were furnished with furniture made of native Russian woods, including Karelian birch, poplar and walnut.[8]

Maria Feodorovna died on October 24, 1828, fourteen days after her sixty-seventh birthday. She left the house to her younger son, Michael, and specified that none of the furniture should be taken away. After Michael’s death, it went to the second son of Nicholas I, Constantine Nikolayevich. It then passed to his widow and then their eldest son, Constantine Constantinovich. Her descendants respected the will, and turned the house into a family museum, just as it was when she died.

After the Russian Revolution


At the time of the Russian Revolution in 1917, the eldest son of Constantine Constantinovich, Prince Jean, along with his wife Helen, the daughter of the King of Serbia, and the sister of Constantine, Queen Olga of Greece, were living in one of the wings of Pavlovsk. As the political situation deteriorated, they left, and the house was left to the care of Alexander Polovotsoff, director of the Art Institute and the Museum of Applied Arts in St. Petersburg, When Lenin and the Bolsheviks seized power in November 1917, Polovtsoff went to the Winter Palace, found Anatoly Lunacharsky, the Commissar of Enlightenment of the new government, and demanded that Pavlovsk be saved as a museum. Lunacharsky agreed and named him Commissar Curator of Pavlovsk. He returned to the Palace and found that a group of revolutionary sailors had searched the Palace for weapons and taken a few sabers, but otherwise everything was in its place. He hired former soldiers to guard the house, put all the furniture into the main building, made an inventory of all the treasures in the Palace, and successfully resisted demands from various revolutionary committees for dishes, chairs, tables, and all the books from the library. He was able to persuade Lunacharsky himself to come to Pavlovsk, After Lunacharsky’s visit, Pavlovsk was officially confiscated, but turned into a museum, open to the public two or three days a week. Having succeeded in saving the Palace, Polovtsoff took family and belongings and slipped across the border to Finland and moved to Paris.

World War II


The German attack on the Soviet Union in June 1941 and the swiftness of the German advance took the Soviet government by surprise. The morning after the attack, the curators of Pavlovsk, under the direction of museum curator Anatoliy Kuchumov, began to pack as many of art objects as possible, starting with the Sèvres porcelain toilet set given by Louis XVI to Maria Feodorovna and Paul in 1780. Ninety-six hours after the announcement of the beginning of the war, the first thirty-four crates were being carried from the palace by horse-drawn cart. Boards were put over the windows, and sand on the floor of the Palace. The thirty curators often worked by candlelight, and by July there were air raids. The paintings, chandeliers, crystal, porcelain, rare furniture, and works of ivory and amber were packed and sent first. They worked with great care – each piece of furniture had to be carefully dismantled, porcelain vases had to be separated from the bases, and delicate clocks had to have their casing and mechanisms separated and packed separately, with diagrams on how to put them back together. One piece of each set of furniture was saved, and the others left behind. The Roman and Greek antiquities were too heavy and delicate to move, so they were taken to the basements, placed as close together as possible, and then hidden by a brick wall.

By the third week of August thirteen thousand objects, plus all the documentation, had been packed and sent away. Some crates were sent to Gorky, others to Sarapul, and the last group, on August 20, 1941, went to Leningrad, where the crates were stored in the basement of St. Isaac’s Cathedral. The last shipment included the chandelier from the Italian Hall and the jasper vases from the Greek Hall. On August 30, the last rail link from Leningrad to Moscow was cut, and the city was under blockade. By August 28 the Germans were fifty kilometers from Pavlovsk. A Soviet division headquarters was located in one wing of the palace,

As the Germans came closer, the park and Palace came under bombardment. The museum staff began to bury the statues which were too heavy to evacuate. They calculated that the Germans would not dig deeper than one meter eighty centimeters, so they buried all the statues as deep as three meters. The statues of the Three Graces were buried three meters beneath the private garden of Maria Feodorovna. Their calculations were correct; the statues were still there after the war. On September 16, the last soldiers left, and the Germans occupied Pavlovsk Palace, which was still occupied by a group of elderly women guardians.

The Germans occupied Pavlovsk palace for two and a half years. Officers were quartered in the salons on the first floor, and the ballroom was made into a garage for cars and motorcycles. Barracks were located in the north wing and a hospital in the south wing. German soldiers, Dutch soldiers and Spanish soldiers in special units of the German army occupied the buildings in the Park. The sculpture and furniture that remained in the house and all the books of the Rossi Library were taken to Germany. The statue of Emperor Paul in the courtyard was used as a telephone pole. Fortunately the Germans did not discover the antiquities hidden behind the brick wall in the basement.

Pavlovsk was liberated on January 24, 1944. When the Soviet troops arrived, the Palace had already been burning for three days. The main building of the Palace was a hollow shell, without a roof or floors. The north wall had fallen. Most of the parquet floors of the palace had been used as firewood; a few pieces were found in unburned portions of the palace near the stoves. Of the over one hundred thousand trees that had been in the park before the War, seventy thousand had been cut down or destroyed by the shelling. All the decorative bridges in the park had been blown up. Eight hundred bunkers had been dug in the park. The Rose Pavilion was gone; the Germans had used the materials to construct a fortified dugout.

Restoration


On February 18, 1944, a meeting was held at the House of Architects in Leningrad to discuss the fate of the ruined Palaces. The academician and architect Aleksei Shchusev, who had designed the Lenin Mausoleum, called for the immediate reconstruction of the Palaces. "If we do not do this", he said, "we who know and remember these palaces in all their glory as they were, then the next generation will never be able to reconstruct them." [11] Even before the war had ended, the Soviet government decided to restore Pavlovsk and the other ruined palaces around Leningrad.

First the mines had to be cleared from the ruins and palace and the park. Then the remaining walls were supported with scaffolding, and casts were made of the remaining molding. Fragments of plaster molding were collected, sorting, and casts made. The color of paint still on the remaining walls was carefully noted for later copying. Photographs and early plans of the palace were brought together to help with the restoration.

As soon as the war ended, a search began for treasures stolen from the Palace. Curators collected pieces of furniture, fabric, the legs of tables and pieces of doors and gilded cornices from the German fortifications around the Palace. In the buildings which had been German headquarters, they found chairs, marble statues and rolled-up paintings from the Palace. They found other furniture and objects as far away as Riga, Tallinn, and in Konigsberg, in Germany.

Some precious objects from Pavlovsk left Russia even before the war. Four Gobelins tapestries from Pavlovsk were sold by the Soviet Government to J. Paul Getty, and are now on display in the Getty Museum in Malibu, California.[12]

The restorers used only the original variants of the architectural decoration; those created by Cameron, Brenna, Voronykhin, and Rossi. The only changes permitted were to use modern materials. Columns made of wood were replaced by poured concrete or bricks, and the ceilings of the Italian and Greek Halls were made of steel and concrete so they would be fireproof.

A special school, the Mukhina Leningrad Higher Artistic Industry School, was created in Leningrad to teach the arts of restoring architectural details, furniture, and art objects. This school produced a corps of restoration experts who worked on all the palaces around Leningrad.

The work was meticulous and difficult, and proceeded very slowly. In 1950, after six years of planting new trees, parts of the Park opened to the public. In 1955, the restoration of the facade of the Palace was completed, and restoration of the interiors began.

Fortunately for the restorers, the original plans by Cameron, Brenna, Voronykhin and Rossi still existed. Also, fragments of the original interior molding, cornices, friezes and the frames for the carvings, bas-reliefs, medallions and paintings still remained, and could be copied. In addition, there were twenty-five hundred photographic negatives taken in the early century by Benois, and another eleven thousand photographs taken just before the war.[12]

The chief of the restoration, Feodor Oleinik, was insistent that all the restoration be faithful to the original work: "Pay attention and do not use later details", he demanded. "Only the original variant, only that done by Cameron, Brenna, Vornykhin, or Rossi." Old techniques of artisans of the 18th century, such as painting false marble and gilding furniture, had to be relearned and applied. A silk workshop was opened in Moscow to recreate the original woven fabrics for wall coverings and upholstery, copying the texture, color and thread counts of the originals. In forty rooms of the Palace, painted decoration on the walls and ceilings had to be precisely recreated in the original colors and designs. A Master painter and six helpers recreated the original trompe l’oeil ceilings and wall paintings.[13]

Once the interior walls and decoration had been exactly recreated, the next step was the furnishings. The twelve thousand pieces of furniture and art objects removed from their original places, from paintings and tapestries to water pitchers and glasses, had to be put back where they belonged. Furniture, doors, and parquet floors of many different colors of wood which had been burned or stolen were remade exactly like the originals. The crystal chandeliers of the 18th century were exactly copied.

In 1957, thirteen years after the Palace had been burned, the first seven rooms were opened to the public. In 1958, four more rooms were opened, and eleven more in 1960. The Egyptian Vestibule was finished in 1963, and the Italian Room opened in 1965. Eleven more rooms were ready by 1967. By 1977, on the 200th anniversary of the beginning of the Palace, fifty rooms were finished, and the Palace looked again as it had in the time of Maria Feodorovna.



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