Vim li cas argon tiv thaiv yuav tsum tau thaum vuam precision carbon steel hlab?

Tiv thaiv oxidation cov tshuaj tiv thaiv
Kev tsis zoo ntawm cov pa oxygen: Thaum lub sij hawm vuam, qhov kub thiab txias ua rau lub pas dej molten hlau thiab tshav kub cuam tshuam ntawm precision carbon steel tubes yooj yim heev rau cov pa oxygen hauv huab cua. Rau carbon steel, oxygen thiab hlau yuav tsim hlau oxide (FeO, Fe₂O₃, thiab lwm yam). Cov oxides no yuav muab sib xyaw rau hauv cov hlau vuam, uas yuav txo tau cov khoom siv ntawm cov vuam. Piv txwv li, lub xub ntiag ntawm hlau oxide yuav txo tau lub zog thiab toughness ntawm vuam vim hais tias nws yuav ua puas lub continuation ntawm cov hlau, ib yam li inserting ntau me me "cov ntsiab lus tsis muaj zog" rau hauv ib tug khoom hlau qauv.
Cov nyhuv tiv thaiv ntawm argon: Argon yog ib qho roj inert nrog cov tshuaj lom neeg ruaj khov heev. Nws tuaj yeem cais cov pas dej molten thiab cov hlau kub kub los ntawm huab cua raws li cov pa tiv thaiv thaum lub sijhawm vuam. Thaum argon npog thaj tsam vuam, nws tiv thaiv cov pa oxygen los ntawm kev sib cuag nrog cov hlau, yog li zam qhov tshwm sim ntawm oxidation tshwm sim. Qhov no ua kom lub purity ntawm cov hlau weld, ua kom muaj cov khoom sib txuas zoo ib yam li cov khoom siv niam txiv thiab tswj xyuas cov khoom zoo.
Txo qhov tsim ntawm pores hauv welds
Ua rau ntawm qhov hws: Thaum vuam precision carbon steel kav, yog tias tsis muaj cov pa tiv thaiv, impurities xws li nitrogen thiab dej vapor hauv huab cua kuj yuav cuam tshuam lub pas dej molten. Thaum lub pas dej molten cools thiab solidifies, cov gases yuav tsim pores ua ntej lawv yuav khiav. Porosity yog ib qho tsis xws luag hauv welds, uas yuav ua rau tsis muaj zog ntawm cov kabmob zoo ntawm cov welds. Piv txwv li, nyob rau hauv cov yeeb nkab weld nyob rau hauv siab, pores yuav dhau los ua ib tug xau channel, cuam tshuam loj rau lub sealing thiab kev nyab xeeb ntawm cov kav dej.
Anti-pore nyhuv ntawm argon: Kev siv argon tuaj yeem txo qhov tsim ntawm pores. Vim argon displaces huab cua, nws txo cov ntsiab lus ntawm cov pa impurities nyob rau hauv lub molten pas dej ua ke. Ntxiv mus, argon tuaj yeem ruaj khov npog lub pas dej molten thaum lub sij hawm vuam, muab cov xwm txheej zoo rau kev khiav tawm ntawm cov roj. Txawm hais tias ib qho me me ntawm cov roj tsim tawm, nws yooj yim dua kom tso tawm los ntawm lub pas dej molten nyob rau hauv kev tiv thaiv ntawm argon, yog li tau txais ib qhov ntom ntom.
Xyuas kom pom qhov zoo ntawm qhov vuam
Tsim kom muaj qhov tsis xws luag: Thaum tsis muaj cov roj thaiv kev tiv thaiv, oxidation ntawm cov hlau thiab kev nkag mus ntawm impurities thaum vuam yuav ua rau lub vuam nto yuav ntxhib thiab tsis sib xws. Piv txwv li, qhov tsim ntawm oxide scale yuav ua rau ntses-scale-zoo li protrusions los yog pits ntawm lub weld nto, uas tsis tsuas yog cuam tshuam rau cov tsos ntawm weld, tab sis kuj yuav ua rau muaj kev nyuaj siab concentration. Cov ntsiab lus kev ntxhov siab yog qhov ua rau tawg thaum lub raj xa dej raug rau lub zog los yog sab nraud quab yuam, yog li txo qhov kev pab cuam lub neej ntawm cov kav dej.
Kev txhim kho cov tsos zoo los ntawm argon: Vuam nyob rau hauv kev tiv thaiv argon tuaj yeem ua rau cov vuam zoo li du thiab zoo ib yam. Vim tias argon tiv thaiv kev cuam tshuam ntawm oxidation thiab impurities, lub vuam hlau tuaj yeem tsim ib qho chaw tiaj tus thaum lub sij hawm solidification txheej txheem. Qhov no yog ib qho tseem ceeb tshwj xeeb tshaj yog rau precision carbon steel kav, vim hais tias nyob rau hauv ib co daim ntawv thov scenarios nrog siab yuav tsum tau rau cov tsos thiab dimensional raug (xws li precision instrument manufacturing, khoom kho mob, thiab lwm yam), zoo weld tsos zoo yog ib tug ntawm cov tseem ceeb yam tseem ceeb kom tau raws li qhov zoo ntawm cov cuab yeej siv. siv cov kev cai.
Ua raws li cov kev xav tau ntawm cov cua sov ntawm precision vuam
Kev sib raug zoo ntawm cov khoom siv hluav taws xob thiab cov khoom siv vuam zoo: Precision carbon steel yeeb nkab vuam yuav tsum muaj kev tswj xyuas cov cua sov kom tsis txhob vuam deformation thiab xyuas kom vuam zoo. Argon shielded vuam (xws li tungsten inert gas welding) tuaj yeem muab qhov chaw ruaj khov nrog cov khoom siv hluav taws xob sib xyaw ua ke. Cov yam ntxwv no tso cai rau kev tswj xyuas kom meej ntawm cov khoom siv hluav taws xob thaum lub sij hawm vuam, kom ntseeg tau tias cov vuam yog tag nrho melted thaum txo cov thermal cuam tshuam rau cov khoom siv niam txiv, yog li txo qhov muaj peev xwm ntawm vuam deformation.
Lub luag haujlwm pabcuam ntawm argon hauv kev tswj cov cua sov: Lub xub ntiag ntawm argon pab stabilize qhov vuam arc vim nws tsim cov roj av ruaj khov nyob ib ncig ntawm lub arc. Lub arc ruaj khov tuaj yeem tswj tau qhov vuam ceev thiab cov duab ntawm lub pas dej molten, ntxiv kev pab tswj cov cua sov tawm tswv yim. Qhov no yog qhov tseem ceeb heev rau vuam precision carbon steel daim hlau, uas muaj cov kev xav tau siab heev rau qhov tseeb qhov tseeb thiab vuam deformation tswj.
Yog tias koj xav paub txog yam uas yuav tsum tau muaj kev tiv thaiv argon thaum vuam precision carbon steel kav, koj tuaj yeem sab laj nrog peb cov neeg ua haujlwm pabcuam, peb yuav ua haujlwm rau koj tag nrho 24 teev hauv ib hnub!