Vim tias qhov sib txawv me me ntawm cov hlau tsis xeb yeeb nkab fittings, raws li qhov tshwj xeeb vuam ntawm cov yeeb nkab steel hlau fittings, cov tswv yim tshav kub raug txo kom ntau li ntau tau, yog li ob txoj hauv kev ntawm phau ntawv arc vuam thiab argon arc vuam siv. Rau d> 159 hli, argon arc vuam siv rau hauv qab. Arc vuam npog. Txhua argon arc vuam nrog d ≦ 9159 hli. Lub vuam txheej txheem kev cai ntawm cov yeeb nkab steel hlau fittings yog li nram qab no
① Cov tshuab hlau txais yuav DC rov qab sib txuas rau phau ntawv arc vuam, thiab kev sib txuas ncaj qha tam sim no rau argon arc vuam;
Txhob ua ntej vuam, cov hlau hlau txuas yuav tsum txhuam nrog cov hlau xaim hlau xaim txhawm rau txhawm rau tshem tawm oxide nplai ntawm qhov chaw, thiab ntxuav nrog acetone; vuam txuas lub cav yuav tsum tau qhuav ntawm 200-250 ° C rau 1 teev, thiab siv raws li qhov xav tau;
③ Ua ntej txuas hlau, ntxuav cov roj stains tsis pub dhau 25 hli ntawm ob sab ntawm qhov zawj ntawm lub workpiece, thiab ntxuav 25 hli rau ob sab ntawm qhov zawj nrog acetone;
Thaum argon arc vuam, qhov tsis muaj qhov taub yog Φ2 hli, tus ntoo khaub thuas tungsten yog tus ncej tungsten, thiab qhov tshwj xeeb yog Φ2.5 hli;
Thaum thav hlau stainless hlau nrog argon arc vuam, tom qab sab yuav tsum tau ntim nrog roj argon los tiv thaiv sab nraub qaum. Siv cov qauv ntawm qee cov puv argon hauv qhov kav raj xa dej, tus nqi ntws yog 5-14L / min, thiab tus nqi pem hauv ntej argon txaus yog 12-13L / min.
Lub tuab ntawm vuam vuam yuav tsum yog nyias li qhov ua tau thaum lub sijhawm vuam hauv qab, thiab qhov sib xyaw nrog lub hauv paus yuav tsum zoo heev, thiab arc yuav tsum nyob rau hauv txoj kab nqes maj thaum lub arc kaw. Lub arc yuav tsum tau cig thiab tua hauv qhov zawj, thiab txoj kev ua qab yias yuav tsum tau sau los tiv thaiv cov kev ua qab yias ntawm kev tawg.
Txij li cov hlau tsis xeb yeeb nkab fittings yog austenitic stainless hlau kav, thiaj li tiv thaiv carbide nag lossis daus rhiab kev cuam tshuam, interlayer kub thiab tom qab weld txias tus nqi yuav tsum raug tswj hwm nruj me ntsis. Lub interlayer kub thaum vuam yuav tsum raug tswj hauv qis dua 60 ℃, thiab nws yuav tsum raug tswj tom qab vuam. Tam sim ntawd dej txias, thaum siv ntu vuam. Qhov kev sib txuam no thiab cov qhov uas sib txawv ntawm cov hlau txuas tuaj yeem ua kom nce tus nqi txias ntawm qhov sib koom tes thiab txo qhov vuam kev ntxhov siab.
