无铅铜是黄铜合金中的一种，从字面意思上来讲，其实它就是一种不含铅元素的黄铜，可是这种理解是错误的，正确的说法是不含铅或是含少量铅的黄铜才是它的正确定位，对于RoHs规定，它的含铅量得低于0.1%才是合格的；对于California AB 1953 规定，它的含铅量得低于0.25%以下才是合格的；对于美国铜行业协会CDA来讲，它的含铅量得低于0.09%才是合格的；对于美国电子行业的规定，它的含铅量得低于0.01%以下才是合格的；不同的领域规定的含铅量是不同的，产品型号的不同所含铅的含量也是不同的，以上规定是指这款不含铅或是含少量铅的铜合金的含铅量必须满足这些标准才算是合格的，否则就算不合格，是不能出售市场的，因为不同的铜合金它的定位是不一的，普遍的铜行业生产厂家生产此产品都是按照RoHs标准来的，在该项标准的引用下，它涉及的领域行业也多，所以大部分商家都是以它为标准而生产的，铅含量过高肯定是不行的，其实对于大多数公司来讲，合金元素的控制也是比较麻烦的，要把一种合金所不需要的元素除的一干二净，这个工艺是很难的，所以这也就是大部分合金还是掺有它不需要的元素的原因所在，有肯定是有，只不过占有分量非常少，但不能超标，要符合RoHs等相关机构的规定才是合理的，所以我们公司作为深圳专业的铜产品生产商家，在进行深圳无铅铜加工生产中，会严格按照相关规定制度，为客户提供最优质的铜产品。
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[ DB ] CONNECT:[ UseTime:0.001339s ] mysql:host=pc-m5epcw1px949b110u.rwlb.rds.aliyuncs.com;port=3306;dbname=yousedb;charset=utf8
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[ SQL ] select id,title,city_id,pic,add_mode,cert_mode from tb_prod where id<>149764 and check_status=1 and ( title like '%无铅铜棒%' or tag like '%无铅铜棒%' or intro like '%无铅铜棒%' or title like '%铜棒%' or tag like '%铜棒%' or intro like '%铜棒%' ) order by submit_date desc limit 10 [ RunTime:0.001444s ]
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