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铜合金加工材料在生产过程中 ,会产生一些起皮、分层、裂纹、划伤和飞边等缺陷 ,影响产品质量 ,而且管材的裂纹和穿孔可能会引起舰艇停航和电厂不能正常发电等事故 ,造成巨大的经济损失。ＧＢ 8890— 1988[1] 标准规定 ,“管材内外表面应光滑、清洁。不应有裂缝、针孔、环状痕
Copper alloy processing materials in the production process, there will be some from the skin, delamination, cracks, scratches and flash defects, affecting the product quality, and pipe cracks and perforation may lead to ship sailing and power plants can not be normal power generation and other accidents , Causing huge economic losses. GB 8890 - 1988 [1] standard, "the inner and outer surface of the pipe should be smooth and clean. There should be no cracks, pinholes, annular marks