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| THE SURFACE PROCESSING TECHNOLOGY OF HARD ALLOY CARBIDE FOR DRILL RODS |
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| DOI： |
| KeyWord:Cemented carbide Surface processing Drill rods Breakage rate |
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| Guangxi Nanning Hard Texture Alloy Factory |
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| Abstract: |
| ln this paper,the surface situation during sintering,surface pro-cessing method and the requirement of drill rods during welding of the cemen-ted carbide for drilling are described.It points out that the quality stabi-lity of dritll rods may be increased and the breakage rate decreased with the correct surface processing method.The adoption of low cobaIt wear-resistant cemented carbide is of great importance to increase the service life of drill rodS. |
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