【正文】 ............................................................................................. 1 手工電弧堆焊 ............................................................................................................... 2 氧 乙炔焰堆焊 .............................................................................................................. 2 自動埋弧堆焊 ............................................................................................................... 2 氣體保護電弧堆焊 ....................................................................................................... 3 等離子弧堆焊 ............................................................................................................... 3 高頻感應(yīng)堆焊 ............................................................................................................... 4 堆焊的應(yīng)用現(xiàn)狀及前景 ..................................................................................................... 4 研究目標和研究內(nèi)容 ......................................................................................................... 5 2 實驗過程 .................................................................................................................................... 7 實驗材料的選取 ................................................................................................................. 7 實驗材料的選取依據(jù) ................................................................................................... 7 母材的選取 ................................................................................................................... 7 高鉻 鑄鐵成分的選取 ................................................................................................... 7 焊劑的選用 ................................................................................................................... 8 試驗?zāi)康摹⒎椒安襟E ..................................................................................................... 9 試驗?zāi)康募胺椒? ........................................................................................................... 9 實驗設(shè)備及材料 ........................................................................................................... 9 實驗步 驟 ....................................................................................................................... 9 3. 實驗結(jié)果與討論 ..................................................................................................................... 11 母材組織分析 ................................................................................................................... 11 復(fù)合層化學成分和硬度關(guān)系的分析 ............................................................................... 12 4 結(jié)論 .......................................................................................................................................... 17 參考文獻 ...................................................................................................................................... 18 附件 1 ........................................................................................................................................... 18 附件 2 ........................................................................................................................................... 20 附件 3 ........................................................................................................................................... 21 附件 4 ........................................................................................................................................... 22 附件 5 ........................................................................................................................................... 23 外文翻譯 ...................................................................................................................................... 24 外文原文 ...................................................................................................................................... 36 II 致謝 .............................................................................................................................................. 43 1 1 概述 研究的目的及意義 目前 ,機械零件大多數(shù)是用金屬材料制造的 ,在使用過程中會發(fā)生磨損 .隨著現(xiàn)代工業(yè)的發(fā)展 ,機械零件經(jīng)常在異常復(fù)雜和苛刻的條件下工作 ,大量的機械零件往往因磨損 ,腐蝕或磨蝕而報廢 .這就要求在高溫高壓、承受較大載荷以及氧化、磨蝕等工作條件下的機械裝備表面具 有良好的耐磨、耐腐蝕、耐高溫和抗氧化等性能 。 關(guān)鍵詞 ： 高頻堆焊 ； 高鉻鑄鐵 ； 耐磨 ii Abstract In the mechanical parts wearing, Abrasion has been a large proportion. Wearingresisting lay of high chromium cast iron was pounded on the low carbon steel plate with Highfrequency pounding methods. At the same time that can have the advantage of two materials, meet the requirements of toughness and Wearability of parts. This article process metallographic analysis of the high chromium cast iron with different position, and measure the hardness of surfacing, analysis the relations between different position of high chromium cast iron and Wearability. The results show that the Hyperectectic high chromium cast iron have Excellent Wearability pare with thehypoeutectic and Eutectic high chromium cast iron. Keywords: Highfrequency pounding 。本文 主要 對 亞共晶、共晶、過共晶 高鉻鑄鐵 組織 進行金相分析，并測量堆焊層 的硬度 ，研究分析了不同的高鉻鑄鐵組織與耐磨性的關(guān)系。 i 鄭州大學畢業(yè)設(shè)計（論文） 題 目： 高鉻鑄鐵高頻堆焊工藝及性能的研究 Research on Property of High Chromium Cast Iron Produced with Highfrequency Compounding 指導教師： XXX 職稱： 教授 學生姓名： 學號： 專 業(yè)： 材料成型及控制工程 院（系） ： 材料科學與工程 學院 完成時間： 2021 年 5 月 30 日 ii 摘 要 在機械零件磨損中，磨料磨損占了很大比重。 采用 高頻感應(yīng)堆焊工藝在普通碳素結(jié)構(gòu)鋼母材上堆焊一層 2～ 3mm 厚的高鉻鑄鐵耐磨層 ，可以同時具備兩種材料的優(yōu)點，滿足零件對韌性和耐磨性的要求。實驗得出，與亞共晶、共晶組織的高鉻鑄鐵相比，過共晶高鉻鑄鐵具有更好的抗磨料磨損性能。 high chromium cast iron 。 統(tǒng)計資料表明 :在失效的機械零件中 ,大約有 75%～ 80%是屬于