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用KNM60螺旋耐磨材料為螺旋輸送機葉片堆焊耐磨層

2022-12-1 9:25:03      點擊:

螺旋輸送機葉片的磨損情況較復雜, 其磨損量受輸送物料的材質、形狀和顆粒的大小影響較大, 但其磨損機理與表面疲勞磨損大致相同。物料在輸送機槽內滑動時, 與葉片接觸并產生法向應力和切向應力, 葉片在法向應力和切向應力交替作用下產生磨損。在輸送機中螺旋葉片的外緣磨損比內緣磨損量大,并且磨損主要發生在葉片外緣。因此,通過為螺旋葉片邊緣堆焊耐磨層,改善葉片表面的化學成分及組織結構,增強其耐磨性。具體來說, KNM60螺旋耐磨材料為堆焊材料,采用氬弧堆焊, 共 5mm厚。堆焊后硬度高達 68 HRC,焊后堆焊層無任何裂紋,焊縫成型光滑美觀,且可進行后續機加工。



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