膜厚对自润滑合金化板性能的影响研究

Effect of Self-lubricated coating on Properties of Self-lubricated Galvannealed Steel Sheet

对不同膜厚自润滑合金化板的润滑性能、成形性能、焊接性能、脱脂性能进行了研究。结果表明:随着膜厚增加,自润滑合金化板的润滑性能、成形性能提高,焊接性能、脱脂性能变差;膜厚小于300mg/m^2时,成形性能提高的不明显;膜厚大于500mg/m^2时,焊接性能及脱脂性能受到不良影响。为保证自润滑合金化板的性能,生产时应将自润滑膜厚控制在300mg/m^2~500mg/m^2。

The lubricating property,formability,weldability and degreasing performance of the self-lubricated galvannealed steel sheet with different thickness of self-lubricated coatings were studied in this paper.The results showed that as thickness of self-lubricated coating increased,the lubricating property and formability of the self-lubricated galvannealed steel sheet was better,while the weldability and degreasing performance was worse.When the thickness of self-lubricated coating was less than 300mg/m^2,the improvement of formability was not obvious.While it＇s greater than 500mg/m^2,the weldability and degreasing performance started to turn bad.The thickness of self-lubricated coating should be controlled in 300~500mg/m^2 to ensure the properties of the self-lubricated steel sheet.