装配机械手设计及运动仿真.zip
Materials Technology . 3 Properties and Appli I(%) is formed below a hard layer 01 AI,O,. whlch bds good resistance to scallng A Ima brittle protective layer with better formability and rhe same scaling rrsistdoce 1s produced by aNIising In this process the anicle is hratrd m a powder of Fe-A1 alloy at 800 to 1200(: Both processes are also applicable to metallic materials other than steel, e.g. calorising with copper and brass and alitising with nickel alloys for gas turbine blades. Siliconising. A brittle but very scale-resistant surface is obtained for low-carbon steel by treatment with hot SiCI, vapour. The Si content of the layer can be as much as 20%. Sherardisation. This process is carried out in a similar way to calorisation. After morduranting or sand blasting, the workpieces are heated at 370 to 400 OC in zinc dust with certain additives. Apart from increased corrosion pro tection. a good keying surface for painrng is obtained. Boronising. By boronising hard and wrar-resistant
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Materials Technology . 3 Properties and Appli I(%) is formed below a hard layer 01 AI,O,. whlch bds good resistance to scallng A Ima brittle protective layer with better formability and rhe same scaling rrsistdoce 1s produced by aNIising In this process the anicle is hratrd m a powder of Fe-A1 alloy at 800 to 1200(: Both processes are also applicable to metallic materials other than steel, e.g. calorising with copper and brass and alitising with nickel alloys for gas turbine blades. Siliconising. A brittle but very scale-resistant surface is obtained for low-carbon steel by treatment with hot SiCI, vapour. The Si content of the layer can be as much as 20%. Sherardisation. This process is carried out in a similar way to calorisation. After morduranting or sand blasting, the workpieces are heated at 370 to 400 OC in zinc dust with certain additives. Apart from increased corrosion pro tection. a good keying surface for painrng is obtained. Boronising. By boronising hard and wrar-resistant
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