电力部七局水工机械厂(四川省夹江县)生产碳素钢、低合金钢及高锰钢等,其中高锰钢年产量占30～40％,每年要用大量的冷铁。以往该厂用酸浸法和机械加工法(重要铸件)去锈,因成本高、加工周期长,且保存还需镀锡或铝。为此,于1973年自制了一台简易冷铁去锈滚筒,其结构见右图,主要技 Electric Power Seventh Bureau Hydraulic Machinery Factory (Jiajiang County, Sichuan Province) to produce carbon steel, low alloy steel and high manganese steel, including high manganese steel annual output accounted for 30 to 40%, each year to use a lot of chilled iron. In the past the plant acid leaching and mechanical processing (important castings) to rust, due to high cost, long processing cycle, and the need to save tin or aluminum. To this end, in 1973 made a simple cold iron to rust roller, the structure shown on the right, the main technology