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Welcome to the official website of Dalian Xinyi steel abrasive parts Co., Ltd!
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Dalian Xinyi steel abrasive parts Co., Ltd
Contact: Manager Zhang
Telephone： 0411-39630390
0411-39569620
mobile phone：13795133932
website：en.dlxyg.com.cn
Address: No. 10, Shengsheng Second Road, Dalian Economic and Technological Development Zone
Office worker: Quanshui P3, Ganjingzi District, Dalian
Why is the finished product of cast steel shot black? The casting is made by melting the steel, pouring it into the sand mold for molding, and then cooling and casting. Therefore, the black on the surface of cast steel shot is the color of iron oxide formed by the chemical reaction between the high-temperature steel surface and oxygen in the air. Ferrous oxide is also called iron oxide. Chemical formula FeO Black powder; Melting point 1369 ± 1 ° C, relative density 5.7; Insoluble in water, alcohol and lye, soluble in acid; It is very unstable. It is rapidly oxidized to ferric oxide when heated in air.
Ferrous oxide can be prepared by heating ferrous compounds such as ferrous oxalate under the condition of isolation from air, or by hydrogen in ferric oxide. Ferrous oxide is mainly used as colorant in glass.
Office address: P3 Quanshui District, Ganjingzi District, Dalian
Factory address: No. 10, Shengsheng Second Road, Dalian Economic and Technological Development Zone
Copyright © http://en.dlxyg.com.cn/ 大连鑫毅钢磨料配件有限公司 Specializing inDalian sandblasting,Dalian shot blasting,Dalian blackened surface treatment,Welcome to inquire!
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