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将含甲醇87%的水溶液,通过 JCL-1型甲醇催化裂解机产生的气氛保护20Cr 低碳钢的冷挤压退火。其效果不增碳,不脱碳而且表面光洁。
87% aqueous methanol solution, through the JCL-1 type methanol catalytic cracking machine to protect the atmosphere generated 20Cr mild steel cold extrusion annealing. Its effect is not carbon, not decarburization and smooth surface.