藥芯割絲水下濕式電弧切割割口成形及熱影響區(qū)組織分析
發(fā)布時間：2018-07-25 19:34
【摘要】：針對水下作業(yè)發(fā)展的需要,利用藥芯割絲進(jìn)行了水下濕式電弧切割試驗,分析了水下電弧切割過程中切割電壓、電流及切割速度對割口成形的影響規(guī)律,并研究了割口熱影響區(qū)的顯微組織.結(jié)果表明,藥芯割絲水下電弧切割過程中電弧長度、割絲伸出長度在不停變化;割口下口基本較上口寬;隨切割電壓或電流的增大,割口上下寬度均有所增加;隨切割速度的增大,割口下口寬度逐漸變小.同時發(fā)現(xiàn),由于水下冷卻速度較快,割口熱影響區(qū)較窄,可分為重熔區(qū)、過熱區(qū)、完全再結(jié)晶區(qū)與不完全再結(jié)晶區(qū)等區(qū)域.
[Abstract]:In order to meet the need of underwater operation development, the underwater wet arc cutting test was carried out by using core-cutting wire, and the influence of cutting voltage, current and cutting speed on the forming of the cutting mouth was analyzed in the process of underwater arc cutting. The microstructure of the heat affected zone was studied. The results show that the arc length and the extension length of the cutting wire are constantly changing during the underwater arc cutting of the cored wire, the lower end of the cut is wider than that of the upper, and the upper and lower width of the cut increases with the increase of the cutting voltage or current. With the increase of cutting speed, the width of the cut mouth becomes smaller. At the same time, it is found that because of the rapid underwater cooling rate, the heat affected zone of cutting mouth is narrower, which can be divided into remelting zone, overheating zone, complete recrystallization zone and incomplete recrystallization zone.
【作者單位】： 江蘇科技大學(xué)先進(jìn)焊接技術(shù)省級重點實驗室;上海振華重工啟東海洋工程股份有限公司;南京航空航天大學(xué)材料科學(xué)與技術(shù)學(xué)院;
【基金】：國家自然科學(xué)基金資助項目(51305173) 中國博士后科學(xué)基金面上項目(2014M550289,2015M580423);中國博士后科學(xué)基金特別資助項目(2015T80548,2016T90453) 江蘇省青藍(lán)工程中青年學(xué)術(shù)帶頭人資助項目 江蘇高校優(yōu)勢學(xué)科建設(shè)工程資助項目
【分類號】：TG484
本文編號：2144852
[Abstract]:In order to meet the need of underwater operation development, the underwater wet arc cutting test was carried out by using core-cutting wire, and the influence of cutting voltage, current and cutting speed on the forming of the cutting mouth was analyzed in the process of underwater arc cutting. The microstructure of the heat affected zone was studied. The results show that the arc length and the extension length of the cutting wire are constantly changing during the underwater arc cutting of the cored wire, the lower end of the cut is wider than that of the upper, and the upper and lower width of the cut increases with the increase of the cutting voltage or current. With the increase of cutting speed, the width of the cut mouth becomes smaller. At the same time, it is found that because of the rapid underwater cooling rate, the heat affected zone of cutting mouth is narrower, which can be divided into remelting zone, overheating zone, complete recrystallization zone and incomplete recrystallization zone.
【作者單位】： 江蘇科技大學(xué)先進(jìn)焊接技術(shù)省級重點實驗室;上海振華重工啟東海洋工程股份有限公司;南京航空航天大學(xué)材料科學(xué)與技術(shù)學(xué)院;
【基金】：國家自然科學(xué)基金資助項目(51305173) 中國博士后科學(xué)基金面上項目(2014M550289,2015M580423);中國博士后科學(xué)基金特別資助項目(2015T80548,2016T90453) 江蘇省青藍(lán)工程中青年學(xué)術(shù)帶頭人資助項目 江蘇高校優(yōu)勢學(xué)科建設(shè)工程資助項目
【分類號】：TG484
【相似文獻(xiàn)】
相關(guān)期刊論文 前10條
1 王宗平;;電弧切割非導(dǎo)體材料[J];機(jī)械工人;1981年10期
2 黃家匡;;奧氏體鋼的空氣電弧切割[J];焊接;1959年03期
3 丁幼章;;電弧切割鋸的使用工藝[J];焊接;1959年04期
4 熊家林;;不捁掽的氮弧切割[J];焊接;1959年08期
5 劉鳳山;;金屬的空氣-電弧切割[J];機(jī)械制造;1960年02期
6 李大華,趙明法;電弧切割混凝土[J];建井技術(shù);1984年03期
7 ;噴水式熔化極電弧切割在我廠的應(yīng)用[J];焊接;1980年04期
8 ;電弧切割混凝土[J];石油施工技術(shù);1982年01期
9 林杰;;電弧切割混凝土原理的探討和操作工藝[J];焊接通訊;1985年03期
10 ;單相硅整流壓縮電弧切割裝置[J];電焊機(jī);1971年03期
相關(guān)博士學(xué)位論文 前1條
1 田曉潔;海洋廢棄井口水下電弧切割技術(shù)及切割裝備研究[D];中國石油大學(xué)(華東);2014年
相關(guān)碩士學(xué)位論文 前1條
1 林榮桔;深水套管電弧切割技術(shù)研究[D];中國石油大學(xué)（華東）;2013年
，本文編號：2144852
本文鏈接：http://sikaile.net/kejilunwen/jiagonggongyi/2144852.html
最近更新
教材專著
