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精密鑄造的發展
[作者:aowl] [日期:18-04-17] [瀏覽次數:] [來源:http://www.mobiinet.com]
精密鑄造又叫失蠟鑄造,它的產品精密、複雜、接近於零件最後形狀,可不加工或很少加工就直接使用,故熔模鑄造是一種近淨形成形的先進工藝。 Precision casting is also called wax loss casting. Its products are precise, complex and close to the final shape of the parts. It can be used directly without processing or processing. Therefore, the mold casting is an advanced process of near net formation.我國古代:王子午鼎、銅禁、銅獅等等,都是熔模鑄造的傑作。自20世紀40年代熔模鑄造用於工業生產後,半個世紀中一直以較快的速度發展著。特別是歐美國家發展迅速。熔模鑄造用於航空、兵器部門外,幾乎應用於所有工業部門,特別是電子、石油、化工、能源、交通運輸、輕工、紡織、製藥、醫療器械、泵和閥等部門。近幾年我國發展也迅速。 In ancient China, Wu Ding: Prince copper ban, bronze and so on, are casting a masterpiece. Since 1940s, investment casting has been used for industrial production, and has been developing at a fast speed in the past half century. In particular, the European and American countries have developed rapidly. It is applied to all industrial sectors, especially in electronics, petroleum, chemical, energy, transportation, light industry, textile, pharmaceutical, medical equipment, pumps and valves. China has developed rapidly in recent years.熔模技術發展使熔模鑄造不僅能生產小型鑄件,而且能生產較大的鑄件,最大的熔模鑄件的輪廓尺寸已近2m,而最小壁厚卻不到2mm.同時熔模鑄件也更趨精密,除線形公差外,零件也能達到較高的幾何公差.熔模鑄件的表麵粗糙度也越來越小,可達到Ra0.4μm。 The development of melt mold technology makes the melt casting not only produce small castings but also produce large castings. The maximum profile size of the molten casting is nearly 2m, while the minimum wall thickness is less than 2mm. and the casting casting is more precise. In addition to the linear tolerance, the parts can also achieve higher geometric tolerances. The surface roughness of the molten casting castings is rough. The degree is getting smaller and smaller, and it can reach Ra0.4 mu m.

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