The experiments have been carried out to compare the application of Ni Co matrix diamond core bits to Ni Mn matrix diamond core bits.
对电镀镍锰胎体金刚石钻头和镍钴胎体钻头的使用情况进行了对比。
By studying the application of sandwich-structured synthetic diamond core bits, following results are concluded: Matrix hardness can be HRC3-5 higher than that of similar ordinary ones;
通过对夹层结构金刚石钻头的应用研究发现，与同类普通金刚石钻头相比，该钻头的胎体配方硬度可以高HRC3~5；
Diamond coring bits are utilized for core drilling.
在取芯钻井井段，选用金刚石取芯钻头。
Diamond coring bits are utilized for core drilling.
在取芯钻井井段，选用金刚石取芯钻头。
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