尼龙滑轮在木材生产中的应用张娟冯国忠杨秀芹（黑龙江省绥棱林业局１９９１年以前，我国林区木材卸、归、装设备上的滑轮均为铸铁或铸钢轮。由于该滑轮与钢丝绳的摩擦系数较大，致使二者早期破损现象严重，使用寿命偏低，更换频繁，导致生产成本提高。为了提高企业经济效... Application of nylon pulley in wood production Zhang Juan Feng Guozhong Yang Xiuqin (Suailong Forestry Bureau of Heilongjiang Province Before 1991, the pulleys on the equipment for unloading, returning and loading wood in our country’s forests were all cast iron or cast steel wheels. Since the pulley and the steel wire rope The coefficient of friction is larger, resulting in serious damage to both the early damage, low service life, frequent replacement, resulting in increased production costs. In order to improve business efficiency ...