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New star shares with you the future development trend of cyanide free zinc plating
2015-08-08 979
According to the current technical situation, the relevant conditions have been preliminarily met to completely replace cyanide zinc plating in zinc plating. This is because there are many kinds of z
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Main factors affecting cyanide free alkaline copper plating bath
2015-08-05 1076
(1) cylinder opening agentSF–638Cu无氰碱铜开缸剂为稀释液，呈蓝色，主要由铜盐和络合剂组成。其中，铜盐是硫酸铜、氯化铜 、硝酸铜和碱式碳酸铜中的一种或几种混合物；络合剂与促进剂中的络合剂相同。铜离子含量为18 g/L， 其参加量为250、500 mL /L，用于配缸及铜离子浓度的补充，还有其他均衡成份。开缸剂参加量太小，则 铜含量太低，溶液的导电性能差，
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Understanding of the advantages of hard chromium process and the basic elements of hard chromium electroplating
2015-07-31 992
Hard chromium in hard chromium process is a kind of chromium plating.镀铬有两种的，一种是装饰铬工艺的装饰铬，一种是硬铬工艺。硬铬是比较好的一种增加表面硬度的办法，但是它的优缺陷很多，所以好多状况下都没采用。硬铬优点一，表面光亮度好，硬铬优点二，不会生锈，一点锈斑都不会有；硬铬优三，镀的进程中原零件变形小。硬铬优四，假如零件尺寸不
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How to treat the acid salt copper plating wastewater
2015-07-30 966
(1) Chemical precipitation method这种办法适用于含铜量在800～1000mg/L以下的污水,是用碱提高废水PH至生成氢氧化铜沉淀.这种办法可 以获得良好效果,一般采用碱性废水去沉淀.但沉淀中杂质别离费事,平常处置费用较高.（2）置换法在酸性条件下,用铁屑等较生动金属将铜置换出来.这种办法可以到达治理要求,但沉淀中杂质别离困难,污 泥量多。（3）离子交流法这种办法适用
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Understanding the composition of electroplating bath in electroplating process
2015-07-28 1037
① The deposited metal salt.②与被沉积金属离子生成络合物的络合剂。③增加电镀槽液导电性的支持电解质。④槽液稳定剂，如避免氧化变质的化合物。⑤槽液缓冲剂，用以稳定pH值。⑥改动镀层性质的添加剂，如光亮剂、整平剂等。⑦阻止惰性阳极溶解或避免消耗性阳极钝化的物质。一般而言，被镀金属离子在槽液中必须有足够高的浓度，否则不能满足工业要求的电镀速度。当使用不溶 性阳极时，被镀金属离子
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What is hard chrome process and what is its characteristics
2015-07-24 1031
Hard chromium in hard chromium process is a kind of chromium plating.镀铬有两种的，一种是装饰铬工艺的装饰铬，一种是硬铬工艺。硬铬是比较好的一种增加表面硬度的办法，但是它的优缺陷很多，所以好多状况下都没采用。硬铬优点一，表面光亮度好，硬铬优点二，不会生锈，一点锈斑都不会有;硬铬优三，镀的进程中原零件变形小。硬铬优四，假如零件尺寸不
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New star interprets the development characteristics of vacuum titanium plating technology
2015-07-20 1013
1、 Development and application of PVD (titanium plating) technologyPVD(物理气相沉积)技术在二十世纪七十年代末，开端应用在提高机械力学性能的硬质膜方面，制备的薄膜 具有高硬度、低摩擦系数、很好的耐磨性和化学稳定性等优点。最初在高速钢刀具范畴的成功应用引起了世 界各国工具制造业的高度重视，人们在开发高性能、高牢靠性涂层设备的同时，
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Comprehensive analysis of properties of cyanide free alkaline zinc plating
2015-07-16 1045
(1) coating adhesion取钢铁件按本工艺镀锌，镀层均匀δ为24．8μm，按JB-2111-77标准用热震试验法测定镀层的结合力。将镀 件放在加热炉中加热至190℃，然后取出放入室温的水中骤然冷却，重复测试10次，镀层没有呈现起泡和脱落 ，结合力良好。2耐腐蚀性取钢铁件按本工艺镀锌，镀层δ为20．3μm，采用三价铬蓝锌钝化液钝化后放置24h，按IS
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What is the fundamental difference between chrome plating and zinc plating
2015-07-13 1041
1. Difference in surface color:The surface of galvanized galvanized parts is a little blue and white, but it is not very bright. After passivation treatment, it can be made into blue white zinc, colo
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What is the difference between cyanide free alkali copper process and cyanide copper plating process
2015-07-07 1069
1）. The cyanide free alkali copper process is applied to hardware to replace the cyanide copper plating process and increase the cyanide discharge. Its waste water treatment cost is not higher than