我厂生产的细长带柄钻头,由细而长的钻头和尾柄两部分组成。钻头部分直径与长度之比一般在1:40以上,有的达1:80。又因钻柄直径往往比钻头直径大得多,给机械加工带来很大困难。尤其是磨工,磨直径为3毫米,钻头长200毫米带一号莫氏锥体的细长钻头,一人一天只能磨几根。因而成为一项难加工产品。现在我们采用无机粘结工艺,使用特制氧化铜和磷酸氢氧化铝溶剂配成的无机粘结胶, I plant the production of slender shank bit, the drill bit from the thin and long tail and tail handle two parts. Drill part of the diameter and length ratio of generally above 1:40, some up to 1:80. Due to the fact that the drill shank diameter is often much larger than the drill diameter, great difficulties are involved in machining. In particular, mill workers, mill diameter of 3 mm, bit length of 200 mm with one Morse cone elongated drill, one person can only grind a few days. Thus becoming a difficult to process products. Now we use inorganic bonding process, the use of special copper oxide and aluminum hydroxide solvent dubbed inorganic adhesive,