TIANJIN11XUAN5LAIDAOSHANGHAISONGXIAJIANZHENQITIANJIN11XUAN5!
24XIAOSHIXIAOSHOUREXIAN:137-6120-9895
KONGQIDANHUANGDAXINGYAOBAIJIHUANCHONGQIDEJIAGE
LAIYUAN:SHANGHAISONGXIAJIANZHENQITIANJIN11XUAN5 FABUSHIJIAN:2022-02-03 16:12
(1)一般都是采用渗碳钢制造。也可以采用不锈钢或有色金属制造。
(2)产品必须经过热处理。碳钢自攻螺钉必须经过渗碳处理,不锈钢空气弹簧必须经过固溶硬化处理。以使自攻螺钉达到标准要求的机械性能和使用性能。
(3)产品表面硬度高,芯部韧性好。即“内柔外刚”。这是不锈钢空气弹簧性能要求的一大特点。如表面硬度低,拧不进基体中;如芯部韧性差,一拧就断,也不能使用。所以“内柔外刚”是自攻螺钉满足使用性能的要求。
(4)产品表面均需要表面防护处理,一般是电镀处理。有的产品表面需经磷酸盐处理。如:墙板自攻螺钉多为磷化。
(5)采用冷镦工艺生产。推荐采用高速冷镦机和高速搓丝机或高速行星式滚丝机生产,以确保产品质量。这样生产的自攻螺钉头部成型好,空气弹簧质量高。
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