大電流金屬粉芯焊絲在工程機(jī)械制造領(lǐng)域的應(yīng)用研究

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Abstract： In response to the problems of large heating area of the workpiece base material，large welding deformation，large post welding grinding amount， and multiple welding repair parts in the manufacturing of rectangular box components of acertain typeof engineering machinery product，researchand testingof high current metal powder core welding wire technology were carried out.By comparing and analyzing the welding performance quality，spatter， wire feding speed and process parameters， welding and grinding material costs，and other aspects with the current solid core welding wire，and evaluating the comprehensive application factors，a more suitable welding process method for long straight welds of rectangular box components is found.

Keywords：construction machinery； metal powder core； high deposition efficiency； process research

1序言

目前，工程機(jī)械某型產(chǎn)品長(zhǎng)方盒類構(gòu)件均采取截面箱形結(jié)構(gòu)，該箱形結(jié)構(gòu)與普通箱形結(jié)構(gòu)不同，采取凸字形鋼結(jié)構(gòu)取消墊板，焊縫一律采用對(duì)接接頭，結(jié)構(gòu)如圖1所示。（剩余4227字）