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一、试验前的准备工作(一)材料与设备上的准备:(一)凿岩机为-45和01-43型向上鑽,为了适应小钎杆的需要,我们自制了钎尾按制器。(二)钎杆是中空六角形,道径为22～25毫米的炭素钢钎,为了锻压钎尾的需要,将钎尾压瓦进行了改制。(三)钎头系我矿自制的,钎头形状为一字形,刃角110°,所镶硬质合金为BK-11与15两种,合金片除一少部分是新的小合金片外,多数是利用原有的废片来镶焊的,钎头直径为36～33毫米。(四)炸药:是用原有的硝铵炸药来改装的,改
First, the preparation before the test (a) the preparation of materials and equipment: (a) rock drill -45 and 01-43 type up drill, in order to meet the needs of small drill rod, we made a solder tail pressing device. (B) drill rod is a hollow hexagonal, diameter of 22 to 25 mm of carbon steel braze, in order to forge the need for shaving tail, the brazing tail pressure tile was modified. (3) The drill head is made by our mine. The shape of the drill head is in the shape of a rectangle with a corner angle of 110 °. The alloy is BK-11 and 15 in both types. All but a small part of the alloy plate is a new small alloy plate , The majority is the use of the original piece of waste to be inlaid, drill diameter 36 ~ 33 mm. (D) explosives: is to use the original ammonium nitrate explosives to modify, change