Tooj liab, zoo ib yam li lwm cov hlau tsis muaj hlau thiab txhuas txhuas raws li lawv, yog qhov nyuaj rau weld. Cov teeb meem nyuaj nyob rau hauv vuam yog vim lub siab thermal conductivity ntawm tooj liab, nrog rau nws cov kev ua rau oxidation thiab muaj zog nqus ntawm hydrogen hauv lub xeev molten. Tag nrho cov yam ntxwv saum toj no yuav tsum raug coj los txiav txim siab thaum ua haujlwm vuam. Ib qho ntawm txoj kev siv ntau tshaj plaws rau vuam tooj liab yog kev tuav roj carbon arc vuam.
Cov Lus Qhia
Kauj ruam 1
Npaj cov seem yuav tsum tau welded. Nws yuav tsum raug sau tseg tias txoj kev vuam siv no yog qhia kom siv rau cov khoom lag luam uas tsis tshua muaj siab thiab nrog tooj liab tuab tsawg dua 15 hli. Ntxuav cov npoo ntawm qhov chaw thiab cov npoo nyob ib sab. Vuam yog nqa tawm siv cov cone-sharpened electrodes, nrog rau tam sim no ntawm polarity ncaj qha. Tso cov electrode ntawm kaum ntawm 75-90 degrees rau qhov chaw ua haujlwm kom tau txais welded. Thaum siv hluav taws xob carbon electrode, vuam yuav tsum tau nqa tawm nrog lub cav ntev. Kev pom zoo ntawm qhov ntom ntom ntom ntawm cov hluav taws xob yog 200-400A / cm2.
Kauj ruam 2
Siv M1 liab pas nrig tooj liab ua cov khoom ntim khoom. Thaum siv phau ntawv vuam siv cov carbon electrode, cov khoom muab tub lim yuav tsum tsis txhob muab raus hauv da dej. Tuav qhov sib ntxiv ntawm lub kaum ntawm kwv yees li 30 degrees rau qhov haujlwm, 5 hli los ntawm saum npoo ntawm txheej molten.
Kauj ruam 3
Vuam yog nqa tawm hauv qab ntawm fluxes los ntawm borax lossis kev sib xyaw ntawm borax nrog magnesium, boric acid lossis lwm yam. Kev siv cov muab tub lim cov khoom thiab cov nthwv tuaj yeem tiv thaiv cov khoom tawg ntawm cov hlau oxidation. Lub flux yuav tsum tau thov rau cov npoo yuav tsum tau welded lossis chaw saum npoo ntawm qhov bar, yav dhau los noo nrog dej iav, thiab tom qab ntawd ua kom qhuav hauv huab cua.
Kauj ruam 4
Nws yuav tsum raug sau tseg tias yog hais tias qhov tuab ntawm cov khoom yog 5 hli, qhov txiav lub kaum sab xis ntawm lub npoo ntawm lub pob tw sib txuas yuav tsum txog 90 degrees. Siv graphite puag rau vuam. Weld lub pob tw khi rau hauv ib txheej ntawm ib sab. Qhov no yuav pab kom tsis txhob muaj qhov tsis zoo rau hauv cov cuab yeej.
Kauj ruam 5
Ncej weld forging raws tag nrho ntev ntawm cov npoo. Yog tias cov hlau tuab tsawg dua 5 hli, forging tuaj yeem nqa tawm hauv lub xeev txias. Nrog cov hlau tuab ntau dua 5 hli, kev siv xov tom qab hlau txuas ntxiv yuav tsum tau nqa nrog cov khoom rhaub kom kub txog 600 degrees, tom qab txias txias sai. Ntxuav qhov sib koom tes nrog cov tshuaj tiv thaiv nitric lossis sulfuric acid thiab yaug nrog dej kom tshem tawm txhua qhov seem.
