提高电镀金刚石钻头质量的试验研究  

Experimental study on improving the quality of electroplated diamond bit

作　　者：陈洋[1] 高玉彬 CHEN Yang;GAO Yubin(Champion of Diamond Tools Co.,Ltd.,Team 409 of Hunan Geological and Mineral Exploration and Developing Bureau,Yongzhou,Hunan 425000,China)

机构地区：[1]湖南省地质矿产勘查开发局409队湖南状元公司,湖南永州425000

出　　处：《超硬材料工程》2021年第2期18-23,共6页Superhard Material Engineering

摘　　要：分析了普通电镀金刚石钻头在方法上存在的不足,镀层内存在的针孔和产生的节瘤难以避免,明显地影响电镀钻头的适应范围和钻进经济技术指标。为此,试验研究二次成型工艺技术提高电镀钻头的保径效果;试验研究阴极移动方法去除镀层中的氢气泡和针孔。经检测表明,两种方法都取得了明显效果,镀层致密而平整,钻头胎体力学性能有明显提高。该试验研究为提高电镀金刚石钻头质量提供了良好的技术支持,具有实际应用价值。Micro pinhole and nodules are typical disadvantages for electroplated diamond bit because of its manufacture principle.As a result,the drilling efficiency and application of electroplated diamond bit are remarkably limited.To solve these problems,a modified electroplated forming technology with two-steps was employed to protect bit gauge,and a moving cathode was applied to eliminate the hydrogen bubbles and micro pinholes within the electroplated layer.Experimental results indicate that both of the aforementioned ways can obtain much better electroplated layers,with compact and smooth surface and improved mechanics properties.Those technical support are beneficial to improve the electroplated diamond bit quality and expand its application.

关 键 词：电镀金刚石钻头 针孔与节瘤 钻头保径 阴极移动 二次成型 

分 类 号：TQ164[化学工程—高温制品工业]