【摘要】 本文对国内外几种锯链的链齿及小轴的金相组织进行观察,目的是找出国内外产品之间的差别。根据所得到的结果,我们认为,就链齿的显微组织来看,天津锯链和美国的俄勒岗牌锯链近似,但它的小轴则不如俄勒岗小轴。更多还原

【Abstract】 In order to find out the differences between local chains and foreign chains, the metallography of the cutters and the rivets of several local saw chains and foreign chains were studied. According to results, in so far as the metallographies are concerned the cutter of Tian-Jin saw chain is comparable with Oregon’s, but the rivets made in Tian-Jin are not as good as the Oregon’s made in the U.S.A.更多还原