Two acid chemical polishing agent / Green Smoke / alumina brightener / instead of nitric acid / no "Dragon"

Foshan Decheng Hezhong Chemical Co., Ltd. Address: Nanzhuang purple violet Village Road 23, Foshan Tel: 0757-82012410 Fax: 0757-82012430 Website: www.dchz.cn E-mail: fsdchz@163.com QQ: 320013115 / 502581623 Ali Want: fsdchz DCHZ-305 two acid product is a liquid chemical polishing agent for (the content of aluminum in silicon ≤1%) of aluminum and its alloys two acid chemical polishing. This product does not contain nitric acid, will not produce tobacco while processing a workpiece, greatly improve the production conditions of the workers. And you can handle temperature was lowered to about 100 ℃, also greatly reduces the cost of production, the effect can be comparable with the three acid polishing. Bath composition :( volume) phosphoric acid (d = 1.7g / cm3 98%) 50% sulfuric acid (d = 1.84g / cm3 85%) 50% aluminum ion 2g / L (the new slot) DCHZ-303 10-13g / The DCHZ-303 was added to dissolve the cold bath or phosphoric acid when L-allocation slot. Process parameters: temperature 100-115 ℃ time 0.5-2 minutes