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1.螺纹件合格品外表应光洁无锈蚀,无缺陷,无毛刺,无裂纹。将被试件与标准的配件旋合在一起,应能旋到终端,且在旋进过程中无卡滞现象;旋合后扳动连接件应无晃动和撞击声,若螺纹件有锈蚀、裂纹、毛刺等缺陷,旋合后扳动连接件会晃动,则为劣质品。2.轮胎合格的轮胎外胎两侧面标识都有商标、型号、规格、层数和帘线材料等,且清晰、醒目,有的还印有生产号和盖有检验合格章;内胎表面应光洁有亮度,手握有弹性。若外胎表面标识不全或模糊,内胎无光泽,胎体薄且厚度不均,手握无弹性,则为次品。3.齿轮合格的齿轮包装应完好,齿面应光滑无切削痕迹、无毛刺,并涂有防锈油,齿轮侧面一般都有代号;用钢锯条的断茬划齿轮的工作
1. Threaded parts Qualified product appearance should be smooth without rust, no defects, no burrs, no cracks. Will be the specimen and the standard parts spin together, should be able to screw to the terminal, and in the process of precession without lagging phenomenon; After screwing the connection should be no shaking and impact sound, if the threaded parts have rust, Cracks, burrs and other defects, after screwing the connector will be shaking to move, then the poor quality. 2. Tire Qualified Tire Tire on both sides of the logo are trademarks, models, specifications, layers and cord material, and clear, eye-catching, and some also printed with the production number and cover with inspection chapter; inner tube surface should be smooth and have Brightness, flexible hand. If the tire surface marking incomplete or fuzzy, inner tube matte, thin and uneven thickness of the carcass, the hand is inelastic, then defective. 3. Gears qualified gear package should be intact, the tooth surface should be smooth without cutting marks, no burrs, and coated with anti-rust oil, the gear side generally have a code; with hacksaw stubble gear work