1) internal flush tool joint
内平钻杆接头
2) internal flush tool joint
内平型钻杆接头
4) tool joint box
内螺纹钻杆接头
5) flash joint of rods
钻杆的平头接合
6) drill rod joint
钻杆接头
1.
Wearing resistance of drill rod joint is an important study in drill machine manufacture for years.
以钻杆接头常用材料40Cr为试验材料,对其经粉末固体渗硼后的耐磨性、耐蚀性进行了研究,结果表明,渗硼后其耐磨性提高7倍以上,耐蚀性也有明显提高。
2.
The three fail form of scoring,fillister and corrosion for 127 mm(5″) S135 drill rod joint,corrosion rate and corrosion production have been researched by means of analysis of chemical composition and microstructure,testing of mechanical property.
通过化学成分分析、力学性能测试、组织结构分析和高温高压模拟试验,对127 mm(5″)S135钻杆接头内壁出现划痕、凹槽和腐蚀三种失效形式,钻杆的腐蚀速率和腐蚀产物进行分析研究。
补充资料:内平
1.谓中国境内各诸侯国和平安定。 2.谓平定内部,使安静无事。 3.星官名。属星宿,共四星,今属小狮座。
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