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天盟公司又一批輥子噴焊完工

日期:2020-10-10 11:59 人氣:
   2020年9月27日,天盟公司又一批輥子噴焊修復施工完成,準備裝車發往目的地。
   噴焊是對經預熱的自溶性合金粉末涂層再加熱至1000~1300℃,使顆粒熔化,造渣上浮到涂層表面,生成的硼化物和硅化物彌散在涂層中,使顆粒間和基體表面達到良好結合,沉積物是致密的金屬結晶組織并與基體形成約0.05~0.1mm的冶金結合層,自熔性合金粉末是以鎳、鈷、鐵為基材的合金,其中加入適量硼和硅元素,起脫氧造渣焊接熔劑的作用,同時能降低合金熔點,適于乙炔一氧焰對涂層進行重熔,其結合強度約400MPa,抗沖擊性能較好、耐磨、耐腐蝕,外觀呈鏡面。
   與噴涂層相比,噴焊層的優點顯著。但由于重熔過程中基體局部受熱后溫度達900℃,會產生較大熱變形。因此,噴焊的使用范圍有一定局限性。適于噴焊的零件和材料一般是:
   1、受沖擊載荷,要求表面硬度高,耐磨性好的易損零件,如拋砂機葉片,破碎機齒板,挖掘機鏟斗齒等;
   2、幾何形狀比較簡單的大型易損零件,如軸、柱塞、滑塊、液壓缸、溜槽板等;
   3、低碳鋼、中碳鋼、含錳、鉬、釩的結構鋼、鎳鉻不銹鋼、鑄鐵等材料。
   天盟公司無論是噴焊,還是熱噴涂,都有經驗豐富的專業技術人員操作施工,施工力量雄厚,歡迎廣大客戶到廠參觀考察。


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69久久国产精品亚洲大片

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