收割机刀片是量大面广的农机易损件。两年来,在一机部的领导下,由于各级领导的支持和各攻关单位的共同努力,刀片质量攻关已取得了较好的成绩。在提高使用寿命方面:北方攻关单位去年在新疆塔城地区进行了割麦刀片集中对比试验,试验结果,动刀片有12种278片使用寿命超过1500亩/米第一阶段攻关指标,其中有6种116片达到2000亩/米的1980年第二阶段攻关指标;定刀片15台车超过1500 Harvester blade is a large amount of agricultural machinery wearing parts. In the past two years, under the leadership of a machine department, due to the support of leaders at all levels and the joint efforts of research institutes, the blade quality research has achieved good results. In improving service life: northern research units in Tacheng, Xinjiang last year carried out a comparative test of cutting wheat blades, the test results, the movable blade has 12 kinds of 278 pieces of service life of more than 1,500 acres / m first stage research indicators, of which 6 116 species of trees reached 2,000 mu / m in 1980 the second phase of research targets; fixed blade 15 car more than 1,500