在目前硬合金片相当缺乏的情祝下废合金片的利用有它独特的意义。下面介绍几种在我矿推行有效的废合金片嵌接方法:一、经过数次研磨,钎片只剩到5公厘而形成废片(图1)将它一割为二,把中间弧形突出部分用火花研磨机磨平,然后横放在槽内,四块併成一个钎头(图2)。併成的这种形式的合金钎头,由于块与块之间是平面接触,片与糟之间大部分也成平面接触,孔隙很小,所以焊接的结果是比较坚固的。二、经过鑿岩而将钎头打坏,形成破片,利用其大部分:(一)钎头刚使用不久即被打坏,利用其被打坏的大部分:1.掉一角(图3)或中间破坏、(图4),掉一角时,则取其大部分,将不齐处磨平,然后倒臥放在槽 The use of waste alloy sheet has its unique significance in the current situation of considerable lack of hard alloy sheet. Here are several ways to promote the effective implementation of waste alloy lugs in our mine: First, after several grinding, drill piece only 5 mm left to form waste pieces (Figure 1) Cut it into two, the middle arc Shape protruding parts polished with a spark grinding machine, and then transverse placed in the tank, four and into a bit (Figure 2). And into the alloy head of this form, because the block is in contact with the block between the flat, most of the plane is also in flat contact with the poor, the aperture is small, so the result is relatively strong welding. Second, after drilling rock bit will be broken, the formation of fragments, the use of most: (a) the first bit soon to be smashed, the use of most of them were broken: 1. Out of the corner (Figure 3) Or the middle of the destruction, (Figure 4), off the corner, then take the majority, will be uneven place polished, and then lying on the groove