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換熱器表面熱噴涂鎳鉻碳化鉻合金涂層

日期:2022-06-05 16:19 人氣:
       鉻合金具有高強度和抗腐蝕性,與鐵和鎳組成的合金俗稱不銹鋼,由于其特殊的使用性能,常備用于制備熱噴涂金屬涂層中。碳化鉻是一種無機化合物,是一種灰色粉末,有金屬光澤,熔點比較高,可達到1890℃,在高溫環境下具有良好的耐磨、耐腐蝕、抗氧化性能,屬于一種金屬陶瓷粉末。
       換熱器,也叫作熱交換器,是用來使熱量從熱流體傳遞到冷流體,對對流傳熱及熱傳導的一種工業應用,換熱器的工況,要求其具有耐高溫腐蝕的特性,因此,在對其進行表面修復的時候,選用鎳鉻碳化鉻合金材料制備金屬涂層,是比較好的選擇之一。
       碳化鉻這種材料是一種在高溫環境下具有良好的耐磨、耐腐蝕、抗氧化的高熔點材料,與鎳鉻合金制備的硬質合金顆粒,采用等離子噴涂工藝,可制備具有耐高溫、耐磨、耐氧化以及耐酸的金屬涂層,這種涂層應用在換熱器、飛機發動機或者是石油化工機械器件上,可大大提高機械的壽命。因此,鎳鉻碳化鉻材料也是常用的熱噴涂材料之一。
換熱器表面熱噴涂鎳鉻碳化鉻合金涂層
       熱噴涂工藝的不斷發展以及熱噴涂材料的不斷涌現,賦予了金屬工件更好的防護涂層,不僅節省了成本,也大大提高了機械工件的使用壽命,其應用也越來越廣泛。

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