摘要
使用寿命长短以及钻切效率高低是衡量金刚石工程薄壁钻的使用性能优劣的重要指标。采用新工艺制备的金刚石工程薄壁钻与传统热压工艺生产的国内某著名厂家产品进行了钢筋混凝土台架钻切对比实验,结果表明,新工艺制备的1#钻头的钻孔数为94孔,其耐磨性比目前国内使用寿命最长的产品高51.6%,且钻速基本上与之相当,属于高耐磨型产品;3#钻头的平均钻进时间为12.3min/孔,钻速为19.5mm/min,与国内钻速最高的产品相当,但其使用寿命相比却提高52%,属于高效钻切型产品;2#钻头的钻孔数为72孔,平均钻速为17.7mm/min,其耐磨性和钻进速度分别比国内最先进产品提高了29%-32%和26%-33%,实验证实了该工艺方法制备的金刚石工程薄壁钻头具有高效、长寿命的特点,克服了传统热压烧结技术产品耐磨性与钻速不可兼得的矛盾。
Service life and drilling efficiency are the important measurement indexes of the performance of diamond engineering thin-walled drill bit.Reinforced concrete drilling contrast experiments between engineering thin-walled drill bit manufactured by new tech-nique and a well known domestic product by conventional hot-pressing technique have been conducted.Result shows that the quantity of drill hole of the 1# drill bit manufac-tured by new technique is 94,and the abrasive resistance of it is 5 1.6% higher than that of the most durable procuct in China and their drill rate is similar.This drill bit can be categorized into the high abrasive resistance products;the average drill time of 3 # drill bit is 12.3min/hole and the dirll rate of it is 1 9.5mm/min which is similar to the domestic product of the highest drilling rate while the service life of it is 52% longer which makes is a high efficiency drilling product;the quantity of drill hole of the 2# drill bit is 72 with an average drill rate of 17.7mm/min,its abrasive resistance and drill rate are respectively 29-32% and 26 -33% higher than those of the most advanced domestic products.The experiments have confirmed that the engineering thin-walled drill bit manufactured by new technique has a nature of high efficiency and long service life which has overcome the incompatibility of abrasive resistance and drill rate of the conventional product of hotpressing sintering technique.
出处
《超硬材料工程》
CAS
2015年第1期1-5,共5页
Superhard Material Engineering
基金
国家自然科学基金(No.51172278)
北京市自然科学基金联合基金(15L00025)
石家庄市科技支撑计划(141080831A)
关键词
金刚石工程薄壁钻
钢筋混凝土
钻削
使用寿命
钻进速度
diamond engineering thin-walled drill bit
reinforced concrete
drilling
service life
drill rate
