Tin welding parts and lead-tin alloy die casting, zinc, beryllium bronze, phosphorus copperalloy in electroplating copper with commonly used before also gets to improve adhesion.
锡焊件、铅锡合金、锌压铸件、铍青铜、磷铜等合金在电镀前也常用预镀铜来改善结合力。
2
The defects of casting technology and the impurities in copperalloy material cause roughness of faucet surface with large amounts of sand holes.
铸造技术不完善、铜合金原料中的杂质致使水龙头零件表面疏松，并有大量砂眼。
3
To solve the problems of massive work and low efficiency during Casting Rolling processes design, an expert system for Casting Rolling process design of copperalloy tubes had been developed.