Yuecheng (HK) International Company Ltd.
Add: Guan Dong province Shenzhen city Boaan district 82 disrict road Huafeng new science and technology park A area A2 block , 7th floor 773
Contact us: MAH Tuck Seng
1. To reduce the life of nickel tank, strict control in production, control the content of P in about 7%. Nickel tank after a long life in which the P content will increase, which will accelerate the oxidation rate of nickel;
2. The thickness of the nickel layer is at least 4μm, which can make the nickel layer relatively flat; the thickness of the gold layer should not exceed 0.1μm, too much gold will only make the solder embrittlement;
3. Pre-welding baking board on the welding quality will not play a role in promoting too much. Black pad before welding has been produced, but too much baking the coating will deteriorate;
4. Add the reducing agent to the solution of the leaching solution to obtain a semi-reduced semi-reduced composite gold layer, but the cost will be increased by 2.5 times.
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