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width="425" height="261" style="width: 425px; height: 261px;"/></p><p>  èŽïLŸ¥é•€é”Œæ¤­åœ†é’¢½Ž¡çš„形变¾~˜æ•…通常是繁杂的åQŒå¯æ˜¯å¤§å®¶è¦æ˜¯æŠŠæ¡å…¶å½¢å˜è§„律性,剖析光™€ æˆçš„缘故,选用不一æ ïLš„方式开展防止模貝的形变是可以降低的åQŒä¹Ÿæ˜¯å¯ä»¥æ“¾U늚„。一般来è¯ß_¼Œå¯šw•€é”Œæ¤­åœ†é’¢½Ž¡çš„热处理工艺åŞ变可采用下列方式防止ã€?/p><p>  (1)有效选料。对镀锌椭圆钢½Ž¡åº”挑选材料好的微形变模具钢材(如空淬钢)åQŒå¯¹æ¸—碳体羃松比较严重的模具钢材应开展有效煅造åƈ开展热处理热处理工艺,对很大和没法煅造模具钢材可开展热处理回火双优化热处理工艺ã€?/p><p>  (2)模具设计设计æ–ÒŽ¡ˆè¦æœ‰æ•ˆï¼Œè–„厚不必太差距,样子要对¿U°æ€§ï¼Œé’ˆå¯¹å½¢å˜å¾ˆå¤§æ¨¡è²è¦æŠŠæ¡åŞ变规律性,预埋加工的剩余量åQŒé’ˆå¯¹å¤§ä¸­åž‹ã€é•€é”Œæ¤­åœ†é’¢½Ž¡å¯é€‰ç”¨¾l„成构造ã€?/p><p>  (3)镀锌椭圆钢½Ž¡è¦å¼€å±•äº‹å…ˆçƒ­å¤„理工艺åQŒæ¸…除机械加工制造全˜q‡ç¨‹ä¸­é€ æˆçš„内应力ã€?/p><p>  (4)有效挑选加温æín度,操纵加温速率åQŒé’ˆå¯šw•€é”Œæ¤­åœ†é’¢½Ž¡å¯é‡‡ç”¨˜qŸç¼“加温、加热和别的òqŒ™¡¡åŠ æ¸©çš„方式来降低模貝热处理工艺åŞ变ã€?/p><p>  (5)在确保模貝强度的前提条äšg下,ž®½å¯èƒ½é€‰ç”¨æ€¥å†·ã€ç­‰¾U§åˆ†¾cÕdˆ¶å†ïLƒ­å¤„理或温热处理工艺ã€?/p><p>  (6)寚w•€é”Œæ¤­åœ†é’¢½Ž¡ï¼Œåœ¨æ ‡å‡†æ‰¹å‡†çš„状况下,ž®½å¯èƒ½é€‰ç”¨çœŸç©ºæ³µåŠ æ¸©çƒ­å¤„理和热处理后的深冷暴力ã€?/p><p>  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