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我矿在沈阳金属研究所的协助下,建成了一台钎焊潜孔钻头用真空钎焊炉(附图),于1976年5月正式投产,取代了焦炭反射炉。真空钎焊炉是用石墨电阻做发热体,周期性生产的真空电炉,可钎焊φ200毫米以下各种潜孔钻头及其它产品。它配用JKY-B型真空抽气机组,真空度热态稳定后可达10~(-4)～10~(-5)乇。它具有两个加热室,一次可同时钎焊φ170或φ200毫米潜孔钻头两个。将来配上管道阀门(蝶阀或弯头阀),每个加热室即可分别单独钎焊钻头。
With the assistance of Shenyang Institute of Metal Research, I Mine built a vacuum brazing furnace for brazing the drilled hole (photo), which was put into production in May 1976, replacing the coke reverberatory furnace. Vacuum brazing furnace is made of graphite resistance heating body, periodically produced in a vacuum furnace, can be φ200 mm below the various DTH drill and other products. It is equipped with JKY-B-type vacuum pump unit, the vacuum degree of thermal stability up to 10 ~ (-4) ~ 10 ~ (-5) Torr. It has two heating chambers, one for simultaneous brazing of two φ170 or φ200 mm DTH drill bits. In the future with the pipeline valve (butterfly valve or elbow valve), each heating chamber can be individually brazed drill.