摘要
蓝宝石套料用金刚石钻头不同于常规的工程钻头,要求钻头锋利度好、寿命长、径跳小,还要求蓝宝石晶棒表面加工质量好,因此对金刚石钻头的制备、检验等方面提出了很高的要求。对金刚石钻头的刀头、钻管、配方设计,以及成品钻头需重点检验的指标等进行了分析,并就刀头制备、钻头焊接和后续处理等关键技术进行了阐述。研制了4英寸(内径103mm)金刚石钻头用于钻进蓝宝石晶体,效率比相同规格台湾某公司钻头提高12%,寿命大约是台湾某公司钻头的95%,蓝宝石晶棒次品率低于0.5%,可满足客户的使用要求。
Diamond core drill bit for sapphire is different from the conventional engineering drill bit,it requires good sharpness,long life,small radial jumping,good surface quality of sapphire bar,so the higher requirement is proposed for the preparation and testing of drill bit.This paper focuses on the important testing indicators of the segment,the drill pipe,the matrix design and the finished drill bit,and elaborates the key details on the preparation of segment,the welding of bit and the subsequent processing.We prepared a 4-inch（internal diameter103 mm）diamond drill bit for drilling sapphire crystal,the efficiency is increased by 12% than the Taiwan Residents company′s drill bit with the same specifications,the life is about 95% of Taiwan Residents company′s drill bit,and the defective rate of sapphire bar is less than 0.5%,which satisfies the requirement of customers.
出处
《金刚石与磨料磨具工程》
CAS
2017年第4期27-30,37,共5页
Diamond & Abrasives Engineering
基金
中国钢铁工业协会基金资助"绿色高效专业金刚石工具先进制备技术及产业应用"(1500070063)
关键词
蓝宝石
金刚石钻头
检验指标
钻进速度
sapphire
diamond core drill bit
test indicator
drilling speed
