Kev xaiv cov khoom siv thiab tsim cov txheej txheem ntawm Kub Forging DiesMaterial Xaiv thiab tsim cov txheej txheem ntawm Kub Forging Tuag

2023-09-11 Share

MaterialSkev xaiv tsa thiabMkev tsim khoomProcess ntawmHot FkevTuag

Material Selection and Manufacturing Process of Hot Forging DiesMaterial Selection and Manufacturing Process of Hot Forging Dies

Pwm yog cov txheej txheem tseem ceeb ntawm cov cuab yeej siv los paub txog kev tsim khoom siv thev naus laus zis hauv cov txheej txheem tsim khoom, thiab nyob rau xyoo tas los no, nws tau siv dav hauv kev tsim khoom niaj hnub no.Los ntawm kev xav ntawm kev siv, qhov zoo ntawm cov pwm feem ntau yog nyob ntawm cov khoom xaiv ntawm cov pwm thiab cov txheej txheem kev kho cua sov. Raws li cov xwm txheej ntawm kev siv, cov pwm tau muab faib ua cov pwm pwm, sov forging pwm, kub forging pwm, yas molding pwm thiab casting pwm, thiab lwm yam. Cov kab lus no feem ntau yog xaiv cov khoom siv thiab tsim cov txheej txheem kub forging pwm.

1. Cov kev cai xaiv cov khoom siv thiab kev kho cua sov kev xav tau ntawm kub forging tuag

Los ntawm kev txheeb xyuas ntawm daim ntawv tsis ua haujlwm ntawm qhov kub forging tuag, nws tuaj yeem pom tias qhov tuag yuav tsum tau txiav txim siab hauv cov txheej txheem ntawm kev xaiv cov khoom siv.thermal hardness,tawv-muaj peev xwm, lub zog thiab toughness, thermal qaug zog ua haujlwmthiab lwm yam. Los ntawm qhov pom ntawm kev kho cua sov, nws yuav tsum xav txog kev hnav tsis kam, decarburization decarburization, hardness, thiab lwm yam.

Thermal rigidity,kuj hu ua liab rigidity, hais txog cov pwm nyob rau hauv ib tug kub kub ib puag ncig kom muaj kev ruaj ntseg ntawm lub koom haum thiab kev ua tau zoo, muaj peev xwm tiv taus softening.Qhov peev xwm no tsuas yog nyob ntawm cov tshuaj muaj pes tsawg leeg ntawm cov khoom nws tus kheej thiab cov txheej txheem ntawm kev kho cua sov. Feem ntau hais lus, steels nrog cov ntsiab lus siab melting xws li V, W, Co, Nb, Mo thiab yooj yim rau kev tsim ntau cov ntsiab lus carbide yog siab dua hauv cov cua sov.

Lub zog thiab toughnessFeem ntau suav hais tias yog raws li lub peev xwm ntawm cov pwm, qhov loj ntawm cov hlau, daim ntawv, kev faib tawm, qhov loj, qhov ntau ntawm carbide thiab cov ntsiab lus ntawm residual austenite yuav cuam tshuam lub zog thiab toughness ntawm pwm.Cov yam tseem ceeb no feem ntau yog nyob ntawm cov tshuaj muaj pes tsawg leeg ntawm cov hlau, lub xeev ntawm lub koom haum thiab kev siv lub ntsiab lus ntawm cov txheej txheem kho cua sov.

Harden-muaj peev xwmhais txog qhov hardness ntau yam uas tuaj yeem ua tiav tom qab cov txheej txheem quenching ntawm cov khoom, uas ncaj qha ntsig txog cov ntsiab lus carbon ntawm cov khoom. Tau kawg, muaj ntau yam cuam tshuam rau lub neej ntawm kub forging tuag, thiab cov ntaub ntawv yuav tsum raug xaiv raws li kev siv ntawm kub forging tuag.

2. Kub forging tuag ua tshuab

Ua ntej, blanking, forging thiabspheroidizing annealing kev kho mob: Cov ntaub ntawv pwm muab los ntawm lub Hoobkas steel feem ntau yog nyob rau hauv daim ntawv tuav los yog forging billets, thiab cov carbides nyob rau hauv lub koom haum sab hauv yog muab faib nyob rau hauv ib lub xeev network raws li cov grain ciam teb. Yog tias cov ntaub ntawv pwm hauv daim ntawv no tsis tau ua tiav, cov kab nrib pleb yooj yim rau kev pib thiab nthuav dav raws li cov ciam teb thaum lub sij hawm tsim kho, txo lub peev xwm ntawm cov pwm thiab thaum kawg txo qhov kev pab cuam lub neej ntawm pwm.Los ntawm forging thiab spheroidizing annealing kev kho mob, me me, sib xws thiab dispersed carbide tuaj yeem tsim, lub koom haum sab hauv ntawm cov pwm tau txhim kho, thiab qhov tshwm sim tawg tshwm sim los ntawm kev ntxhov siab hauv zos hauv cov txheej txheem kho cua sov yog zam, thiab kev pab cuam lub neej. pwm yog txhim kho.

Ob, finishing kev kho mob: Npaj txiav ua ntej kev kho cua sov, lub hom phiaj tseem ceeb ntawm uas yog kom tsis txhob tsim ntawm tensile kev nyuaj siab nyob rau saum npoo ntawm cov pwm thaum lub sij hawm machining thiab txo qhov qaug zog tsis kam ntawm pwm.Hluav taws xob pulse ua yog cov khoom siv melting txheej txheem. Tom qab hluav taws xob pulse ua tiav, txheej txheej melting thiab cov txheej txheem cua sov tau yooj yim tsim rau saum npoo ntawm pwm, uas muaj qee yam cuam tshuam rau hardness thiab hnav tsis kam ntawm pwm nto. Txhawm rau txo cov kev ntxhov siab uas tsim los ntawm cov pwm tom qab kev kho cua sov, kev siv hluav taws xob pulse feem ntau tsis ua tiav tom qab kev kho cua sov tiav, tab sis los ntawm kev txo cov nyiaj ua haujlwm.Los yog siv txoj kev sib tsoo thiab polishing tom qab ua tiav los txo qhov cuam tshuam ntawm txheej txheej txheej txheej kom tsis txhob txiav, tshwj xeeb tshaj yog cov khoom siv hluav taws xob ua rau cov pwm nto puas thiab cuam tshuam rau lub neej ntawm pwm.

Thib peb, kev kho cua sov:Kev tsim cov tshuab tsim nyog yuav tsum tau siv los txo qhov deformation ntawm cov pwm hauv cov txheej txheem kev kho cua sov, xws li kev siv cov txheej txheem cua sov ntau theem, uas tuaj yeem tiv thaiv pwm los ntawm cua sov tawg. Nyob rau tib lub sijhawm, txoj kev kho cua sov yuav tsum zam kom tsis txhob evaporation ntawm alloying ntsiab lus, thiab nyob rau hauv qhov kev tso cai ntawm cov khoom harden-muaj peev xwm, roj quenching technology thiab nqus cua sov yuav tsum tau siv kom deb li deb raws li qhov ua tau kom txo tau cov cua sov deformation thiab zam qhov nce kev ua haujlwm pub dawb tom qab kev sib txuas ntawm kev kho cua sov, ua rau muaj qhov kub thiab txias thiab cuam tshuam rau kev pab cuam lub neej ntawm pwm.

Next,ua skub blasting, sib tsoo, polishing kho:Tom qab quenching thiab tempering txheej txheem, ua ntej kev kho cua sov saum npoo, txhaj tshuaj peening yuav tsum tau nqa tawm los ua ib tug compressive kev nyuaj siab txheej rau ntawm tus tuag, thiaj li mus hloov lub deg tensile kev nyuaj siab lub xeev ntawm cov tuag tom qab quenching thiab tempering kev kho mob;cov pwm polishing kev kho mob kuj tuaj yeem tshem tawm qhov tsis xws ntawm pwm ua nto thiab txhim kho lub neej kev pab cuam.

Ces,Ion sib sib zog nqus nitrogen: in kom ntxiv dag zog rau kev qaug zog thiab hnav tsis kam ntawm pwm, nws yog qhov zoo tshaj plaws los siv N2 thiab zam NH3, vim tias H + hauv NH3 muaj cov nyhuv hydrogen embrittlement ntawm pwm.Nws yuav tsum tau muab sau tseg tias qhov sib sib zog nqus nitrogen kub yuav tsum qis tshaj qhov kub ntawm tempering tom qab quenching, yog li kom tsis txhob txo cov hardness ntawm pwm matrix, uas ua rau cov pwm tsis ua hauj lwm..

Thaum kawg, cryogenic kev kho mob: tnws lub hauv paus ntsiab lus ntawm kev kho cryogenic yog los txo cov seem austenite thiab tsim compressive kev nyuaj siab ntawm cov pwm los txhim kho cov hardness thiab nto hnav tsis kam ntawm pwm.Tab sis koj yuav tsum muaj kev nyab xeeb. Cov lus qhia dav dav rau kev kho cryogenic: pwm (chav kub hauv lub xeev) - kua nitrogen (-196) "C / 2 teev - ntuj rov qab los rau hauv chav sov 160-170C / 4 teev txias txias.

Txhua yam, kev tsim cov kub forging tuag tsis yog ib txoj haujlwm yooj yim, muaj ntau cov ntsiab lus uas yuav tsum tau ua tib zoo saib thiab ntau txoj cai yuav tsum tau pom thiab ua raws, vam tias cov ntaub ntawv saum toj no tuaj yeem pab koj rau qee yam. Txais tos kom tso koj cov lus nug thiab kev xav hauv qab no. ZZBETTER ua lub tuam txhab kev tshaj lij thiab txawj ntse, peb kuj tau tsim ntau tungsten carbide kub forging tuag thiab lwm yam khoom siv WC, yog li thov hu rau peb yog tias koj muaj lus nug thiab.


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