Staggered up and down, multilayer moire pattern forming a hollow in the middle, these designs with ordinary precision forging process are hard to make out, but the lost wax method with precision forging process, characters can use paraffin no strength, easy to carve, with ordinary tools can carve out and to get
The wax material like arts and crafts, then additional gating system, coating, dewaxing,pouring, can get fine. Then the improved precision forging process of advanced get enormous development, aviation, automobile, machine tool in succession, ships,internal combustion engine, gas turbine,
Widely used in manufacturing industry of telecommunications equipment, weapons,medical equipment and tools, but also used in the manufacture of Arts and crafts.
The lost wax casting precision forging now say revestment precision forging, precision forging technology is a less cutting or no cutting, is an excellent technology forprecision forging industry, and its application is very extensive. Modern revestment precision forging method is obtained in practical application in industry
In twentieth Century forty years.
Revestment precision forging is developed based on the ancient wax precision forging. Because the heat resistant alloy materials difficult to machining, complex shape parts, so that cannot or difficult to use other methods of manufacturing,therefore, need to look for a new precision molding process, then
Learning handed down from ancient times lost wax precision forging, through the material and process improvement, modern revestment precision forging method to obtain the significant development in ancient times based on the technology. So, the development of aviation industry to promote the application of revestment precisionforging and casting, precision forging of lean
Refinement and improvement, but also created favorable conditions for the aviation industry to further improve performance. Precision forging it not only applies tovarious types, all kinds of alloy, but also produce the casting dimension precision,surface quality than other precision forging method must be high, and other precisionforging method
It is difficult to cast the complex, high temperature resistant, not easy machining castings, can use revestment precision precision forging cast.
The so-called revestment precision forging process, simple said is the use of fusiblematerials (such as wax or plastic) made from fusible model (referred to as the mold or model) in refractory coating, special several layers of the coating, the dry and hardento form a whole shell, and then steam or hot water from the
Melt the model shell, and the shell into the sand box, dry sand filling in the surrounding, the cast into the furnace through the high temperature roasting (such as the use of high-strength shell, need not other and direct baking shell after stripping),mold shell roasting or later, in the
In pouring molten metal replicas de relojes españa and casting. As one of the countries with ancient civilizations,Chinese. Using the technology of the earlier, in the centuries BC, ancient Chinese people to create this kind of lost wax precision forging technology, used for precision forging with various fine patterns and text clock
Ding and vessels products.
Our country is in on century five, sixty time begin to melt mold precision forging is applied to industrial production. The development of the jet engine, to produce likeblade, impeller, nozzle and other complex shape, heat-resistant alloy parts size precision and surface finish.