北京11选5开奖结果Dalian qianda trading co. LTD
Associate: manager li
北京11选5开奖结果Associate: manager pu
Web site: www.sofoi.cn
tongren street, xigang district, dalian city, liaoning province
北京11选5开奖结果Wax casting is mainly used in aviation industry, civil precision casting, and also widely used in shipping, automobile, telecommunications machinery, machine tools and other industries. Wax casting plays a role in forming and fixing. It is mainly used in the production of wax embryo for casting, which plays a forming role in the casting of iron and steel, aluminum alloy, copper alloy, etc., that is to say, the wax is used to make the shape of the product first, which is the key step of casting and indispensable. The process after casting is wax embryo group tree, then shell making, air drying, wax melting, casting and other processes.
北京11选5开奖结果Domestic precision casting wax is usually beaded, of course, there are other, such as FREEMAN in the United States, into pieces, this kind of wax in the market price is high. The wax used in casting mainly includes low temperature mold, medium temperature mold and high temperature mold. Our country imports the mold material is mainly medium temperature mold material.
Careful use of wax matters needing attention, improve the wax injection pressure can eliminate the wax surface of the ripple and streamline. The bubble problem may be generated during wax injection or turbulence and bubbles may occur when the wax is transported into the wax mold at a high velocity. This phenomenon can be solved by reducing the conveying speed and increasing the diameter of wax injection. The line shrinkage is often dependent on the wax injection temperature and pressure, intermission and die temperature, thus reducing the line shrinkage: increasing the wax injection pressure. Confirm whether the mold meets the required temperature. Casting wax, high and medium temperature precision casting grain, bead shape, high hardness, low shrinkage, good toughness, good stability, can be used repeatedly.
Other water-soluble casting wax, repair wax and other supporting products; Model wax is used as mold material for art casting and precision machine tool processing. Of course, usually used in jewelry casting is beaded "wax". A precision casting method for bronze and other metal objects invented during the spring and autumn period. The method is, is made of wax model, filled with clay reinforcement inside and outside, to dry, heat, make wax liquid out, plug the wax outlet, and then inject metal solution, after cooling, hit the filled mud, you can get and wax touch the same metal. The articles cast by the lost wax method can be exquisitely carved and hollow out.