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在废品分析的基础上,通过一系列工艺试验表明:无缝紫铜管冷弯开裂分为韧性和脆性2种,热处理温度及预先冷变形量不当是造成冷弯开裂的主要原因。
Based on the analysis of the waste products, a series of technological tests show that the cold-formed cracking of seamless copper tubes is divided into two types of toughness and brittleness. The heat treatment temperature and improper pre-cooling deformation are the main causes of cold-formed cracking.