Kev vuam tooj liab
Cov txheej txheem ntawm kev vuam tooj liab (uas feem ntau hu ua tooj liab ntshiab kev lag luam) suav nrog kev vuam roj, kev siv tes ua carbon arc vuam, kev siv tes ua arc vuam thiab kev siv tes ua argon arc vuam, thiab cov qauv loj kuj tuaj yeem ua tau vuam tsis siv neeg.
1. Feem ntau siv cov roj tooj liab vuam yog qhov sib koom ua ke, thiab qhov sib koom ua ke thiab T sib koom ua ke yuav tsum siv tsawg li tsawg tau. Muaj ob hom xov hlau vuam siv tau rau kev vuam roj. Ib qho yog xov hlau vuam uas muaj cov khoom deoxygenation, xws li xov hlau 201 thiab 202; lwm qhov yog xov hlau tooj liab dav dav thiab daim ntawv txiav ntawm cov khoom siv hauv paus, thiab tus neeg sawv cev roj 301 siv ua flux. Yuav tsum siv nplaim taws nruab nrab thaum vuam tooj liab.
2. Cov hlau tooj liab tooj liab 107 siv rau kev vuam tes, thiab lub plawv vuam yog tooj liab (T2, T3). Cov npoo ntawm qhov vuam yuav tsum tau ntxuav ua ntej vuam. Thaum lub thickness ntawm qhov vuam ntau dua 4 hli, preheating yuav tsum tau preheated ua ntej vuam, thiab qhov kub preheating feem ntau yog nyob ib puag ncig 400 ~ 500 ℃. Thaum vuam nrog tooj liab 107 vuam pas nrig, lub zog yuav tsum tau rov qab los ntawm DC.
3. Yuav tsum siv cov arc luv luv thaum lub sijhawm vuam, thiab tus pas nrig vuam yuav tsum tsis txhob viav vias kab rov tav. Tus pas nrig vuam ua rau muaj kev txav mus los, uas tuaj yeem txhim kho qhov tsim ntawm qhov vuam. Qhov vuam ntev yuav tsum tau maj mam vuam. Qhov ceev vuam yuav tsum ceev li sai tau. Thaum lub sijhawm vuam ntau txheej, cov slag ntawm cov khaubncaws sab nraud povtseg yuav tsum tau tshem tawm tag nrho. Kev vuam yuav tsum tau ua nyob rau hauv qhov chaw muaj cua zoo kom tiv thaiv kev lom tooj liab. Tom qab vuam, siv lub rauj tiaj tiaj los kov qhov vuam kom tshem tawm kev ntxhov siab thiab txhim kho qhov zoo ntawm qhov vuam.
4. Siv tes argon arc vuam tooj liab. Thaum siv tes argon arc vuam tooj liab, cov xov hlau siv yog xov hlau 201 (xov hlau vuam tooj liab tshwj xeeb) thiab xov hlau 202, thiab kuj siv xov hlau tooj liab, xws li T2.
Ua ntej vuam, yuav tsum ntxuav cov zaj duab xis oxide, roj thiab lwm yam av ntawm cov npoo vuam ntawm cov khoom ua haujlwm thiab qhov chaw ntawm cov hlau kom tsis txhob muaj qhov tsis zoo xws li cov qhov hws thiab cov slag. Cov txheej txheem ntxuav suav nrog kev ntxuav tshuab thiab kev ntxuav tshuaj. Thaum lub thickness ntawm lub phaj sib koom ua ke tsawg dua 3 hli, lub bevel tsis qhib; thaum lub phaj tuab yog 3 txog 10 hli, lub V-puab bevel qhib, thiab lub kaum sab xis yog 60 txog 70; thaum lub phaj tuab ntau dua 10 hli, lub X-puab bevel qhib, lub kaum sab xis yog 60 ~ 70; kom tsis txhob muaj cov npoo tsis sib xws, feem ntau sab laug. Raws li lub phaj tuab thiab qhov loj me ntawm lub bevel, qhov sib dhos ntawm lub pob qij txha raug xaiv hauv qhov ntau ntawm 0.5 txog 1.5 hli.
Feem ntau, kev siv tes vuam tooj liab argon arc feem ntau siv DC qhov txuas zoo, uas yog, tungsten electrode txuas nrog negative electrode. Yuav kom tshem tawm cov qhov cua thiab xyuas kom meej tias cov hauv paus vuam sib xyaw thiab nkag mus tau zoo, yuav tsum ua kom qhov ceev ntawm kev vuam ceev dua, txo qhov siv argon, thiab ua kom qhov vuam sov ua ntej. Thaum lub phaj tuab tsawg dua 3 hli, qhov kub ua ntej cua sov yog 150 ~ 300 ℃; thaum lub phaj tuab ntau dua 3 hli, qhov kub ua ntej cua sov yog 350 ~ 500 ℃. Qhov kub ua ntej cua sov yuav tsum tsis txhob siab dhau, txwv tsis pub cov khoom siv kho tshuab ntawm cov pob qij txha vuam yuav raug txo qis.
Kuj tseem muaj tooj liab carbon arc vuam, thiab cov electrodes siv rau carbon arc vuam suav nrog carbon essence electrodes thiab graphite electrodes. Cov hlau vuam siv rau tooj liab carbon arc vuam zoo ib yam li thaum vuam roj. Cov khoom siv hauv paus kuj tseem siv tau los txiav cov strips, thiab cov fluxes ntawm tooj liab xws li roj agent 301 tuaj yeem siv tau.
Kev vuam tooj dag
1. Cov txheej txheem ntawm kev vuam tooj dag suav nrog: kev vuam roj, kev vuam carbon arc, kev vuam tes arc thiab kev vuam argon arc. 1. Kev vuam roj ntawm tooj dag Vim tias qhov kub ntawm cov nplaim vuam roj qis, qhov ua kom zinc evaporation hauv tooj dag thaum lub sijhawm vuam tsawg dua li thaum siv kev vuam hluav taws xob, yog li kev vuam roj yog txoj kev siv ntau tshaj plaws hauv kev vuam tooj dag (ua tsaug rau koj qhov kev mloog zoo rau Dingding Automatic Welding).
Cov xov hlau vuam siv rau kev vuam roj tooj dag suav nrog: hlau 221, hlau 222 thiab hlau 224. Cov xov hlau vuam no muaj cov khoom xws li silicon, tin, hlau, thiab lwm yam, uas tuaj yeem tiv thaiv thiab txo qhov evaporation thiab hlawv ntawm zinc hauv lub pas dej molten, thiab zoo rau kev ua kom ntseeg tau tias qhov vuam. Kev ua tau zoo thiab tiv thaiv cov qhov cua. Cov fluxes feem ntau siv hauv kev vuam roj tooj dag suav nrog cov hmoov khov thiab cov roj flux. Cov roj flux muaj cov roj boric acid methyl thiab methanol; cov fluxes yog xws li tus neeg sawv cev roj 301.
2. Kev vuam tooj dag siv tes Ntxiv rau tooj liab 227 thiab tooj liab 237, cov pas nrig vuam ua hauv tsev kuj tseem siv tau rau kev vuam tooj dag.
Thaum vuam siv tooj dag arc, yuav tsum siv txoj kev txuas DC fais fab zoo thiab yuav tsum txuas tus pas nrig vuam rau lub electrode tsis zoo. Yuav tsum ntxuav qhov chaw vuam ua ntej vuam. Lub kaum sab xis feem ntau yuav tsum tsis pub tsawg dua 60 ~ 70o. Yuav kom txhim kho kev tsim vuam, cov khoom vuam yuav tsum tau preheated ntawm 150 ~ 250 ℃. Yuav tsum siv kev vuam arc luv luv thaum lub sijhawm ua haujlwm, tsis muaj kab rov tav lossis tig mus tom ntej thiab rov qab, tsuas yog txav mus los linear, thiab qhov ceev vuam yuav tsum siab. Cov khoom vuam tooj dag uas kov cov xov xwm corrosive xws li dej hiav txwv thiab ammonia yuav tsum tau annealed tom qab vuam kom tshem tawm kev ntxhov siab vuam.
3. Siv tes argon arc vuam tooj dag. Siv tes argon arc vuam tooj dag siv tau cov xov tooj dag txheem: xov tooj 221, xov tooj 222 thiab xov tooj 224, thiab cov ntaub ntawv uas muaj cov khoom zoo ib yam li cov ntaub ntawv hauv paus kuj siv tau ua cov ntaub ntawv sau.
Kev vuam tuaj yeem ua tau los ntawm kev siv hluav taws xob ncaj qha lossis AC. Thaum siv AC vuam, qhov ua kom cov zinc yaj dua li thaum txuas nrog hluav taws xob ncaj qha. Feem ntau, kev ua kom sov ua ntej tsis tas yuav tsum tau ua ntej vuam, thiab kev ua kom sov tsuas yog thaum lub phaj tuab loj heev. Qhov ceev ntawm kev vuam yuav tsum ceev li sai tau. Tom qab vuam, cov khoom vuam yuav tsum tau ua kom sov ntawm 300 ~ 400 ℃ rau kev annealing kom tshem tawm kev ntxhov siab vuam kom tiv thaiv kev tawg hauv cov khoom vuam thaum siv.
4. Kev vuam siv cov pa roj carbon arc tooj dag Thaum vuam siv cov pa roj carbon arc tooj dag, hlau 221, hlau 222, hlau 224 thiab lwm cov hlau vuam raug xaiv raws li cov khoom siv hauv paus. Koj tuaj yeem siv cov hlau vuam tooj dag ua hauv tsev los vuam. Cov roj 301 lossis cov zoo li no tuaj yeem siv ua cov kua dej hauv kev vuam. Kev vuam yuav tsum tau ua haujlwm luv luv arc kom txo cov zinc evaporation thiab hlawv kev puas tsuaj.
Lub sijhawm tshaj tawm: Lub Peb Hlis-10-2025