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全國服務熱線:400-0708-056

適用于噴焊工藝的情況有哪些

日期:2019-08-16 16:14 人氣:
    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熱處理工藝,適用于噴焊工藝的情況主要有以下幾種:
1. 各種碳鋼、低合金鋼的工件表面載荷大,特別是受沖擊載荷,要求涂層與基體結合強度在350—450N/mm2的工件,噴焊硬度HRC150≤65,涂層厚度從0.3至數毫米,噴焊層經磨削加工后表面粗糙度可達Ra0.4—0.1μm以上。
2. 在腐蝕介質中使用,要求涂層致密,無孔隙。
3. 工件表面原設計采用淬火、滲碳、滲氮、鍍硬鉻等工藝,要求表面有很高的硬度。
4. 工件工作環境惡劣,如受強烈的磨粒磨損、沖蝕磨損、氣蝕等。
5. 無需特殊處理就可噴焊的金屬工件。
6. 需預熱 250 — 375 ℃噴焊后需緩冷的金屬工件。  
7. 噴焊后需等溫退火處理的金屬工件。
    本信息由信息部張忠霞整理發布,歡迎有熱噴焊的需要的客戶來電咨詢,熱線400-0708-056
適用于噴焊工藝的情況有哪些

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