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问:我厂为用户生产一系列要求高导电性和高导热性紫铜铸件,技术上一直未过关,主要是铸件气孔废品率太高,能否就此予以指导? 答:你指的该不是因浇注过程中卷入空气及沿型壁吸入空气造成的局部不均匀分布的气孔和因铜液与铸型材料相互作用而生成的皮下气孔吧? 问:上述两种气孔虽然不时发生,但是我们难以防止的还是于铸件内部均匀分布的气孔,尤其是厚壁处气孔更严重,铸件在产生这类气孔后,重者
Q: I plant for the production of a series of users require high conductivity and high thermal conductivity of copper castings, the technology has not been clearance, mainly castings stomatal rejection rate is too high, can you give guidance? A: You mean not because of casting Process involved in the air along the wall and the inhalation of air caused by local uneven distribution of pores and due to copper liquid and mold material interaction generated subcutaneous pores? Q: Although the two kinds of pores from time to time, but we can hardly prevent Or evenly distributed within the pores of the casting, especially in thick-walled stomata is more serious, casting in the production of such pores, the heavier