Cov Txheej Txheem Annealing rau Forgings yog dab tsi?

Kev ua kom kub yog ib qho ntawm cov txheej txheem kho cua sov tseem ceeb tshaj plaws rau cov khoom forgings, siv los txhim kho lawv txoj kev siv tshuab, txo cov kev ntxhov siab sab hauv, txhim kho kev ywj pheej, thiab npaj lawv rau kev ua tiav ntxiv. Cov khoom forgings, tsim los ntawm kev ua cov hlau hauv qab lub zog compressive siab, feem ntau muaj cov kev ntxhov siab seem thiab cov qib hardness sib txawv vim yog cov txheej txheem forging. Kev ua kom kub pab txhim kho cov qauv nplej thiab kho cov khoom siv kho tshuab kom cov khoom forgings tuaj yeem ua haujlwm tau zoo tshaj plaws hauv kev pabcuam.

Tsab xov xwm no tshawb nrhiav lub ntsiab lus ntawm annealing, cov laj thawj uas nws siv, cov txheej txheem annealing tseem ceeb rau kev forgings, cov kauj ruam koom nrog, thiab cov txiaj ntsig uas nws muab rau cov chaw tsim khoom thiab cov neeg siv kawg.

Taw qhia rau Annealing rau Forgings

Kev ua kom kub yog ib qho txheej txheem tswj kev kub thiab txias uas hloov cov khoom siv lub cev thiab qee zaum cov tshuaj lom neeg ntawm cov hlau kom nws mos dua thiab ua haujlwm tau zoo dua. Hauv kev forgings, cov txheej txheem txo qhov nyuaj, txhim kho kev ductility, thiab txhawb kom muaj cov qauv me me sib xws.

Nws yog siv rau ntau yam khoom siv forging, suav nrog cov hlau carbon, hlau alloy, hlau stainless, txhuas alloys, tooj liab alloys, thiab lwm yam hlau tshwj xeeb.

Vim li cas Annealing thiaj li tsim nyog rau Forgings

• Txo Kev Nyuaj Siab Sab Hauv- Kev forging ua rau muaj kev ntxhov siab rau hauv cov hlau vim yog kev hloov pauv thiab kev txias tsis sib xws. Kev annealing txo cov kev ntxhov siab no kom tiv thaiv kev cuam tshuam thaum lub sijhawm machining.

• Txhim kho kev siv tshuab- Cov hlau mos dua yooj yim dua rau kev txiav, tho, thiab ua kom zoo nkauj, txo cov cuab yeej hnav thiab txhim kho kev tsim khoom.

• Txhim kho Ductility- Ua rau cov hlau muaj peev xwm hloov pauv yam tsis tawg, uas yog qhov tseem ceeb rau cov txheej txheem tsim ntxiv.

• Txhim kho cov qauv ntawm cov qoob loo- Tsim cov qauv microstructure sib xws dua rau cov khoom siv kho tshuab sib xws.

• Npaj rau Kev Kho Mob Kub Tom Ntej- Tsim cov xwm txheej zoo rau cov txheej txheem xws li quenching thiab tempering.

Hom Kev Ua Kom Kub Rau Kev Forgings

Cov txheej txheem annealing sib txawv raug xaiv raws li cov khoom siv forging, daim ntawv thov, thiab cov khoom siv kho tshuab xav tau.

1. Kev Ua Kom Kub Tag Nrho

Lub Hom Phiaj
Yuav kom tsim tau qhov mos mos thiab ductility siab tshaj plaws hauv cov hlau forgings, ua rau lawv yooj yim dua rau tshuab lossis txias.

Txheej Txheem

• Ua kom sov lub forging mus rau qhov kub siab tshaj qhov tseem ceeb ntawm kev hloov pauv (feem ntau 30–50 ° C siab dua qhov tseem ceeb rau hlau).

• Tuav ntawm qhov kub no kom txog thaum tag nrho cov forging ncav cuag qhov kub sib xws.

• Txias maj mam hauv lub cub tawg kom txog rau qhov kub thiab txias hauv chav.

Cov ntawv thov

• Cov hlau carbon loj forgings

• Cov khoom uas yuav tsum tau ua kom zoo heev

• Cov qhov chaw uas qhov kev tawv yog qhov tseem ceeb

2. Kev Ua Kub Kub (Subcritical Annealing)

Lub Hom Phiaj
Txhawm rau rov qab ua kom cov hlau forgings uas ua haujlwm tau tawv dua yam tsis muaj kev hloov pauv tseem ceeb hauv microstructure.

Txheej Txheem

• Ua kom sov rau qhov kub qis dua qhov tseem ceeb tshaj plaws (feem ntau 550–700 ° C rau hlau).

• Tuav ntev txaus kom rov qab tau qhov ductility.

• Txias rau hauv huab cua ntsiag to.

Cov ntawv thov

• Cov khoom siv txias

• Cov khoom uas xav tau kev txo kev ntxhov siab ntawm kev ua haujlwm tsim khoom

3. Kev Nyuaj Siab Annealing

Lub Hom Phiaj
Txhawm rau txo cov kev ntxhov siab seem hauv qhov forging los ntawm kev forging, machining, lossis welding, yam tsis muaj kev cuam tshuam rau qhov nyuaj lossis lub zog.

Txheej Txheem

• Ua kom sov rau qhov kub thiab txias tsis tseem ceeb (feem ntau yog 500–650 ° C rau hlau).

• Tuav rau 1-2 teev nyob ntawm seb qhov tuab ntawm daim.

• Txias rau hauv huab cua los yog cua sov.

Cov ntawv thov

• Cov khoom siv vuam

• Cov khoom siv ua tiav raws li qhov yuav tsum tau muaj kev ruaj khov ntawm qhov ntev

4. Kev Ua Spheroidizing Annealing

Lub Hom Phiaj
Yuav tsim cov qauv spheroidal carbide hauv cov pa roj carbon lossis hlau alloy forgings, zoo heev txhim kho kev siv tshuab.

Txheej Txheem

• Ua kom sov rau qhov kub qis dua lossis hloov pauv me ntsis saum thiab qis dua qhov tseem ceeb.

• Tuav rau ob peb teev.

• Txias maj mam hauv lub cub tawg.

Cov ntawv thov

• Cov cuab yeej hlau forgings

• Cov hlau forgings

• Cov khoom uas xav tau kev siv tshuab ntau ua ntej ua kom tawv

5. Kev Ua Kub Kub Isothermal

Lub Hom Phiaj
Txhawm rau txhim kho qhov loj ntawm cov noob thiab txhim kho kev siv tshuab thaum txo lub sijhawm voj voog tag nrho.

Txheej Txheem

• Kub kom siab tshaj qhov kub tseem ceeb tshaj plaws.

• Txias sai sai rau qhov kub nruab nrab (qis dua qhov kub tseem ceeb) thiab tuav kom txog thaum kev hloov pauv tiav.

• Txias rau hauv huab cua ntsiag to.

Cov ntawv thov

• Cov hlau forgings

• Cov khoom uas xav tau cov khoom sib xws

6. Kev Rov Ua Dua Tshiab Annealing

Lub Hom Phiaj
Txhawm rau rov qab ua kom cov hlau tsis yog hlau uas tau ua haujlwm txias heev xws li txhuas, tooj liab, lossis tooj dag.

Txheej Txheem

• Kub kom txog qhov kub uas ua rau cov noob tshiab tsim tau yam tsis muaj noob loj hlob ntau.

• Tuav ib pliag.

• Txias hauv huab cua lossis dej, nyob ntawm seb cov hlau.

Cov ntawv thov

• Aluminium alloy forgings rau aerospace thiab automotive siv

• Cov hlau tooj liab forgings rau cov khoom siv hluav taws xob

Cov Kauj Ruam Hauv Cov Txheej Txheem Annealing Rau Forgings

1. Kev Npaj- Ntxuav qhov chaw forging kom tshem tawm cov nplai, roj, thiab cov kuab paug.

2. Thauj khoom rau hauv lub cub tawg- Npaj cov forgings kom tso cai rau cua sov ntws sib npaug thiab tiv thaiv kev warping.

3. Kev ua cua sov- Ua kom kub dua ntawm qhov ceev uas tswj tau kom tsis txhob muaj kev poob siab ntawm thermal.

4. Tuav (Ntso)- Tswj qhov kub thiab txias rau lub sijhawm xav tau, raws li qhov loj me thiab cov khoom siv forging.

5. Txias- Tswj tus nqi txias raws li hom annealing; txias qeeb rau tag nrho annealing, sai dua rau qee cov txheej txheem txo kev ntxhov siab.

6. Kev Tshuaj Xyuas- Txheeb xyuas cov txiaj ntsig los ntawm kev sim qhov nyuaj, kev tshuaj xyuas metallographic, lossis kev kuaj xyuas qhov ntev.

Cov Yam Tseem Ceeb Uas Cuam Tshuam Rau Cov Txiaj Ntsig Annealing

• Cov Khoom Siv Sib xyaw- Txheeb xyuas qhov kub thiab txoj kev annealing.

• Qhov Loj thiab Duab ntawm Forging- Cuam tshuam rau kev sib npaug ntawm cua sov thiab txias.

• Hom cub tawg– Cov cub tawg siv roj, hluav taws xob, lossis induction yuav ua rau muaj cov qauv cua sov sib txawv.

• Kev Tswj Huab Cua- Cov huab cua tiv thaiv tuaj yeem tiv thaiv kev oxidation thiab decarburization.

• Kev Paub Txog Tus Neeg Ua Haujlwm- Kev tswj qhov kub thiab lub sijhawm kom raug yog qhov tseem ceeb rau cov txiaj ntsig zoo sib xws.

Cov Teeb Meem thiab Kev Dais Teeb Meem Hauv Kev Ua Hlau Annealing

• Kev Mos Mos Tsis Sib Xws- Xyuas kom tseeb tias qhov kub thiab txias sib npaug thiab lub sijhawm ntub dej kom raug.

• Kev Loj Hlob ntawm Cov Nplej Ntau Dhau- Tsis txhob overheating thiab overwintering.

• Kev Oxidation ntawm Qhov Chaw- Siv cov huab cua tiv thaiv lossis cov txheej txheej thaum lub sijhawm ua kom sov.

• Kev cuam tshuam- Txhawb cov forgings kom zoo hauv lub cub tawg thiab zam kev hloov pauv kub sai.

Cov txiaj ntsig ntawm kev ua kom sov zoo

• Kev Siv Tshuab Yooj Yim Dua- Txo cov cuab yeej hnav thiab txhim kho qhov tiav ntawm qhov chaw.

• Kev Ruaj Ntseg ntawm Qhov Ntev- Tiv thaiv kev txav mus los thaum lub sijhawm ua haujlwm lossis kev pabcuam tom qab.

• Kev Txhim Kho Zoo Dua- Tso cai rau kev ua kom txias ntxiv yam tsis muaj kev tawg.

• Lub Cuab Yeej Siv Tau Ntev Dua- Kev ua kom cov hlau uas muaj cov pa roj carbon ntau ua rau lub neej ntawm cov cuab yeej txiav ntev dua.

• Cov Khoom Sib Xws- Xyuas kom muaj kev ua tau zoo sib xws thoob plaws cov khoom.

Cov ntawv thov ntawm Annealed Forgings

Cov forgings annealed yog siv rau hauv:

• Tsheb- Cov iav, cov shafts, cov connecting rods.

• Kev tsav dav hlau- Cov khoom siv kho vaj tse, cov khoom siv tsaws tsaws.

• Lub zog- Turbine ncej, generator rotors.

• Roj thiab roj av- Lub cev valve, flanges, cov khoom siv drilling.

• Kev Tsim Kho Dav Dav- Cov cuab yeej siv tshuab, cov khoom siv siab.

Xaus lus

Kev ua kom kub yog ib qho txheej txheem kho cua sov tseem ceeb rau kev forgings, txhim kho lawv txoj kev siv tshuab, kev ua haujlwm yooj yim, thiab kev ruaj khov thaum txo cov kev ntxhov siab seem. Kev xaiv txoj kev ua kom kub zoo nyob ntawm cov khoom siv forging, kev tsim qauv, thiab daim ntawv thov uas xav tau. Los ntawm kev nkag siab txog cov txheej txheem annealing sib txawv - los ntawm kev ua kom kub tag nrho thiab cov txheej txheem annealing mus rau kev ua kom kub thiab kev txo kev ntxhov siab - cov chaw tsim khoom tuaj yeem ua kom muaj kev ua tau zoo tshaj plaws thiab kev ntseeg siab hauv kev pabcuam.

Rau cov lag luam uas nrhiav cov khoom zoo forged nrog kev kho cua sov kom raug, ua haujlwm nrog cov neeg muag khoom muaj kev paub zoo lisakysteelua kom muaj txiaj ntsig zoo sib xws, ua raws li cov qauv thoob ntiaj teb, thiab kev txawj ntse. Kev cog lus ntawmsakysteelrau cov txheej txheem kho cua sov siab heev lav tias txhua qhov kev sib tsoo ua tau raws li qhov yuav tsum tau ua siab tshaj plaws.