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在硬质合金刀具表面涂复一层厚3～5微米的碳化钛,刀具寿命就会显著提高。更重要的是提供了为提高刀具寿命而采用各种碳化物涂层的可能性。下文报导的是碳化铌涂层对硬质合金BK8车刀刀片寿命的影响的研究结果。碳化铌的沉积是用五氯
Carbide cutter surface coated with a layer of 3 to 5 microns thick titanium carbide, tool life will be significantly improved. More importantly, it offers the possibility of using a variety of carbide coatings to increase tool life. The following report is about the effect of niobium carbide coatings on the life of cemented carbide BK8 turning inserts. The deposition of niobium carbide is pentachloride