Thaum vuam Q265GNH Corten Steel rau lub teeb- lub luag haujlwm lossis cov haujlwm kho kom zoo nkauj, ntau tus neeg tsim khoom xav paub yog tias preheating yog qhov yuav tsum tau ua. Raws li lub teeb-lub luag haujlwm Corten Steel (yield zog Ntau dua lossis sib npaug ntawm 265MPa), nws tau zam ntau dua li siab -lub zog sib txawv-tab sis qhov kev pheej hmoo ntawm vuam tsis xws luag xws li cov kab nrib pleb txias tseem nyob twj ywm. Puas yog preheating ib txwm xav tau, lossis nws puas nyob ntawm phaj thickness? Yuav hla preheating puas lub vuam los yog ua rau cov hlau tsis muaj zog? Lub ntsiab lus teb yog qhov tseeb:Q265GNH Corten Steel tsis tas yuav tsum tau preheating rau nyias daim hlau, tab sis preheating yog pom zoo (los yog yuav tsum tau) rau thicker daim hlau - nws yuav tsum tau nyob ntawm phaj thickness, tsis yog ib tug - loj - haum-txhua txoj cai. Hauv qab no yog cov lus qhia yooj yim, ua tau zoo.
Vim li cas Preheating Matters
Preheating ua ntej welding slows lub txias ceev ntawm Q265GNH lub weld cheeb tsam. Rau ib qho hlau, kev txias sai sai tom qab vuam tsim kev ntxhov siab sab hauv, uas tuaj yeem ua rau cov kab nrib pleb txias - me me, nyuaj - rau - kuaj xyuas qhov tsis zoo uas ua rau lub zog sib koom ua ke. Preheating kuj tshem tawm cov dej noo noo, tiv thaiv cov hws ntxeem tau thiab ua kom cov kev sib koom ua ke khaws Q265GNH cov kev tiv thaiv corrosion thiab cov khoom siv kho tshuab.
Thaum Preheating xav tau (los ntawm phaj thickness)
Qhov kev txiav txim siab rau preheat Q265GNH boils mus rau phaj thickness - ntawm no yog ib qho kev ua txhaum rau koj cov fabrication ua hauj lwm:
Phaj Thickness ＜20mm: Tsis tas yuav tsum tau preheating
Haum rau: Arc, MIG, los yog TIG vuam (feem ntau yog rau nyias Q265GNH daim hlau siv hauv décor, lub teeb railings, lossis cov khoom me me).
Yog vim li cas: nyias daim hlau txias dua maj mam, thiab cua sov los ntawm vuam yog txaus los tiv thaiv sab hauv kev ntxhov siab thiab txias tawg. Preheating ntawm no nkim sij hawm thiab ntxiv cov nqi tsis tsim nyog.
Phaj Thickness 20-40mm: Pom zoo Preheating
Preheating kub: 80-100℃(ib yam li cua sov cheeb tsam 50-100mm nyob ib ncig ntawm lub vuam sib txuas).
Vim li cas: Cov phaj tuab khaws cov vuam qis dua thiab txias sai dua -preheating txo qhov kev ntxhov siab thiab txo qhov kev pheej hmoo ntawm cov kab nrib pleb, kom ntseeg tau tias muaj zog vuam.
Phaj Thickness ＞ 40mm: Yuav tsum Preheating
Preheating Kub: 100-120℃(siv lub ntsuas kub kom ntseeg tau tias cov cua sov tsis sib xws).
Yog vim li cas: Ultra-tuab Q265GNH (tsis tshua muaj tab sis siv rau lub teeb hnyav- cov qauv ua haujlwm) txias ceev heev -preheating yog tib txoj hauv kev kom tsis txhob muaj qhov txias txias thiab tswj kev sib koom ua ke.
Tswv yim Preheating tswv yim (Nqis-Nyob zoo & Yooj yim)
Kev xaiv cuab yeej: Siv lub teeb hluav taws xob rau qhov chaw me me lossis nyias daim hlau; rau cov ntawv tuab lossis cov phiaj xwm loj, siv daim pam hluav taws xob cua sov kom zoo ib yam.
Tsis txhob overheating: Tshaj 150℃tuaj yeem ua rau Q265GNH lub zog tsis muaj zog thiab ua rau nws cov corrosion{2}}resistant nto- lo rau qhov ntsuas kub tau pom zoo.
Khaws qhov kub thiab txias: Khaws qhov chaw preheated ntawm lub hom phiaj kub kom txog thaum vuam tiav -tsis txhob cia nws txias ib nrab, vim qhov no ua rau lub hom phiaj ntawm preheating.
Common yuam kev kom zam
Tsis txhob hla preheating rau cov phaj tuab kom txuag tau sijhawm -cov kab nrib pleb txias yuav tsis tshwm sim tam sim ntawd tab sis yuav ua rau lub vuam tsis muaj zog thaum lub sij hawm, ua rau kev kho nqi kim lossis qhov project tsis ua haujlwm. Hloov chaw, tsis txhob preheat nyias daim hlau yam tsis tsim nyog- nws nkim peev txheej thiab tsis txhim kho qhov zoo ntawm vuam.
Hauv luv luv, Q265GNH Corten Steel lub preheating yuav tsum tau txiav txim los ntawm phaj thickness. Cov phaj nyias nyias (＜20mm) yuav tsum tsis muaj preheating, thaum cov phaj tuab (Ntau dua lossis sib npaug li 20mm) xav kom nws tiv thaiv qhov tsis xws luag. Ua raws li txoj cai yooj yim no ua kom muaj zog, ruaj khov welds uas khaws Q265GNH qhov kev ua tau zoo.
