Post-weld Kev kho cua sov

 

Kev Kho Hniav Kub Kev Txiav Txim Siab: Thaum lub welded qauv bears ib tug loj kev nyuaj siab los yog thaum lub siab toughness ntawm lub welded sib koom yuav tsum tau, tom qab - weld tshav kub kev kho mob yuav tsum tau. Piv txwv li, tom qab vuam cov txheej txheem tseem ceeb ntawm lub nkoj los yog cov qauv kev lag luam tawm sab nrauv uas raug hloov pauv, tom qab kev kho cua sov tuaj yeem tshem tawm qhov kev ntxhov siab ntawm cov welding thiab txhim kho cov qauv thiab kev ua haujlwm ntawm kev sib koom ua ke.

 

Kev kho cua sov Parameter Control: Piv txwv li, tempering kev kho mob tuaj yeem txhim kho cov txheej txheem nyuaj thiab nkig nyob rau hauv lub tshav kub - cuam tshuam cheeb tsam ntawm vuam thiab txhim kho lub toughness ntawm kev sib koom tes. Feem ntau, qhov kub thiab txias yog nruab nrab ntawm 550 - 650 degree . Lub sijhawm tuav yog txiav txim siab raws li yam xws li lub thickness ntawm steel phaj. Feem ntau, rau txhua 25 hli tuab, lub sijhawm tuav yog 1 - 2 teev. Tus nqi cua sov thiab qhov txias txias kuj yuav tsum tau tswj kom tsim nyog kom tsis txhob muaj kev kub ntxhov tshiab.

 

Vuam Environment Control

 

Humidity Control: Cov av noo ntawm qhov chaw vuam muaj qhov cuam tshuam rau qhov vuam zoo ntawm E32 - qib steel phaj. Ib qhov chaw siab-humidity yuav ua rau kom cov ntsiab lus hydrogen hauv vuam, ua rau hydrogen-induced cracking. Feem ntau, nws raug pom zoo kom weld nyob rau hauv ib puag ncig nrog cov txheeb ze av noo qis dua 90%. Yog tias cov av noo siab, cov khoom siv dehumidifying tuaj yeem siv los txo cov av noo ib puag ncig, lossis cua-pov thawj thiab los nag-pov thawj ntsuas tuaj yeem siv los xyuas kom meej tias thaj chaw vuam qhuav.

 

Kev Tswj Kub Kub: Dhau li ntawm qhov ntsuas kub ua ntej, qhov kub thiab txias thaum lub sij hawm vuam kuj tseem ceeb heev. Yog hais tias qhov kub thiab txias ambient tsawg dhau, nws yuav cuam tshuam rau kev ua haujlwm ntawm cov khoom siv vuam thiab cov cua sov hloov thaum lub sij hawm vuam txheej txheem. Feem ntau, ambient kub yuav tsum tsis txhob qis dua 5 degree. Yog tias nws qis dua qhov ntsuas kub no, kev ntsuas ua ntej cua sov yuav tsum tau ua kom ntseeg tau tias qhov vuam zoo.

 

 

 

NV EH32 siab zog tshuaj muaj pes tsawg leeg
Qib	Cov ntsiab lus Max (%)
	C	Si	Mn	P	S	Al	N
NV EH 32	0.18	0.10-0.50	0.9-1.6	0.035	0.035	0.015-0.08	-
	Nb	V	Ti	Cu	Cr	Ni	Mo
	0.02-0.05	0.05-0.10	0.02	0.35	0.20	0.40	0.08

Crack Sensitivity: Pcm=(C+Si/30+Mn/20+Cu/20+Ni/60+Cr/20+Mo/{ {7}}V/10+5B)%

 

 

 

Weld Quality Inspection

 

Kev tshuaj xyuas qhov muag: Tom qab vuam, kev tshuaj xyuas qhov muag yuav tsum tau ua ua ntej. Xyuas seb qhov vuam puas zoo-tsim. Qhov saum npoo ntawm lub vuam yuav tsum tiaj tus, tsis muaj qhov tsis xws luag xws li tawg, pores, thiab slag suav nrog. Lub weld reinforcement yuav tsum ua tau raws li cov qauv tsim thiab feem ntau yuav tsum tsis pub tshaj 3 hli. Qhov dav ntawm qhov vuam yuav tsum yog uniform.

 

Kev kuaj tsis muaj kev puas tsuaj: Tsis yog - kev kuaj kev puas tsuaj xws li kuaj ultrasonic (UT) thiab kuaj hluav taws xob (RT) yog siv los xyuas seb puas muaj qhov tsis xws luag hauv qhov vuam. Kev kuaj ultrasonic tuaj yeem kuaj pom cov pores sab hauv, slag inclusions, tsis muaj fusion thiab lwm yam tsis xws luag hauv qhov vuam. Kev ntsuam xyuas hluav taws xob tuaj yeem ua rau pom qhov tsis xws luag hauv qhov vuam. Raws li qhov tseem ceeb ntawm cov qauv welded thiab cov kev xav tau zoo, qhov kev faib ua feem tsim nyog ntawm kev kuaj tsis muaj kev puas tsuaj thiab kev lees paub raug txiav txim siab.

 

 

 

Vim li cas thiaj xaiv peb?
Peb txaus siab rau peb lub peev xwm los muab cov kev cai daws teeb meem rau peb cov neeg siv khoom cov kev xav tau tshwj xeeb.
Peb txheeb xyuas thiab sib piv cov khoom dhau los thiab cov xwm txheej tam sim no ntawm peb cov NV E32 Steel Phaj, thiab tsim cov txheej txheem tshiab thiab cov txheej txheem.
Peb cov neeg siv khoom ntseeg peb kom xa cov khoom zoo Cold-rolled Steel khoom raws sij hawm thiab ntawm pob nyiaj siv.
Peb nruj me ntsis siv cov kev pab cuam sov so thiab kev xav tom qab muag, ua raws li kev txhim kho kev ua haujlwm zoo.
Peb muab ntau hom Cold-rolled Steel khoom kom tau raws li cov neeg siv khoom xav tau.
Peb ua raws li cov neeg siv khoom-centric thiab hom-taw qhia kev lag luam lub tswv yim, thiab txuas ntxiv muab cov neeg siv khoom txhim khu kev qha thiab cov khoom zoo thiab cov kev pabcuam.
Peb lub Hoobkas tau cog lus los txhawb nqa cov qauv siab tshaj plaws ntawm kev nyab xeeb thiab zoo.
Txhua tus neeg ua haujlwm ntawm peb lub tuam txhab thiab txhua lub tuam haujlwm ua haujlwm ua ke los ua ke kev tswj hwm kev lag luam, kev tshaj lij thev naus laus zis, kev txheeb cais ntau thiab kev kawm ideological.
Peb cov khoom siv Cold-rolled Steel paub txog lawv cov kav ntev thiab kev ntseeg tau.
Kev vam khom rau qhov zoo tshaj plaws thiab muaj txiaj ntsig zoo ntawm cov khoom loj, peb muaj peev xwm ua tau raws li qhov sib txawv ntawm peb cov neeg siv khoom.

Cim npe nrov: Tuam Tshoj nv e32 steel phaj lwm tus neeg, hoobkas