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铸造生产是一切工业的基础,铸件不过关,生产的机器就不可能合格。铸造生产需要广泛的知识.从金属冶炼到热处理都对铸件的质量发生影响。目前我国铸件的主要关键是:1.表面不光洁,2.尺寸不准,3.金属组织不致密,4.品种满足不了某些部门的特殊要求。对大多数生产单位来说,主要是前三项,头两项主要与铸造工艺有关(包括造型材料及设备),第三项与工艺、合金有关,第四项已属于冶金和铸造共同的问题。根据现代铸造的发
Casting production is the basis of all industries, but casting off, the production of the machine can not be qualified. Casting production requires a wide range of knowledge, from smelting to heat treatment all have an impact on the quality of the castings. At present, the main key castings in China are: 1. The surface is not smooth, 2. The size is not allowed, 3. The metal structure is not dense, 4. Species can not meet the special requirements of some departments. For most production units, the first three items are mainly related to the foundry process (including molding materials and equipment), the third relates to technology and alloys, and the fourth item already belongs to the common problems of metallurgy and foundry . According to the modern casting hair