一、钢铁零件的化学光亮除锈法对表面光洁度和尺寸精度要求较高的产品零件或量具,因加工过程或入库时防锈措施不当造成的锈蚀,若用普通的化学除锈方法(盐酸或硫酸酸洗),必然会降低零件表面光洁度和因过腐蚀影响其尺寸精度。我们在长期的生产实践中,用铬酸和磷酸配成的溶液除锈,并将此溶液用于局部镀铬零件的除锈,获得了令人满意的除锈效果。现将方法介绍如下: First, the chemical and steel parts of the bright rust removal of the surface finish and dimensional accuracy of the higher product parts or measuring tools, due to the processing or storage rust rust caused by improper measures, if the use of ordinary chemical rust (hydrochloric acid Or sulfuric acid pickling), will inevitably reduce the part surface finish and corrosion due to its dimensional accuracy. Our long-term production practice, with chromic acid and phosphoric acid solution dubbed rust, and the solution for the partial chrome parts rust, obtained satisfactory rust removal effect. The method is introduced as follows: