Qhov txawv ntawm annealing thiab tempering yog:
Yooj yim muab, annealing txhais tau tias tsis muaj hardness, thiab tempering tseem khaws ib qho hardness.
Tempering:
Cov qauv tau txais los ntawm kev kub siab tempering yog tempered sorbite.Feem ntau, tempering tsis yog siv ib leeg.Lub hom phiaj tseem ceeb ntawm tempering tom qab qhov chaw quenching yog tshem tawm quenching kev ntxhov siab thiab tau txais cov qauv tsim nyog.Raws li qhov sib txawv ntawm qhov kub thiab txias, tempering muab faib ua qhov kub thiab txias, nruab nrab kub thiab kub tempering.Tempered martensite, troostite thiab sorbite tau txais feem.
Ntawm lawv, kev kho cua sov ua ke nrog kev kub siab kub tom qab quenching yog hu ua quenching thiab tempering kev kho mob, thiab nws lub hom phiaj yog kom tau txais cov khoom siv zoo nrog lub zog zoo, hardness, plasticity thiab toughness.Yog li ntawd, nws yog dav siv nyob rau hauv cov txheej txheem tseem ceeb ntawm tsheb, tsheb laij teb, tshuab cuab yeej, thiab lwm yam, xws li txuas rods, bolts, gears thiab shafts.Lub hardness tom qab tempering feem ntau yog HB200-330.
annealing:
Pearlite transformation tshwm sim thaum lub sij hawm annealing txheej txheem.Lub hom phiaj tseem ceeb ntawm annealing yog ua kom cov txheej txheem sab hauv ntawm cov hlau ncav cuag lossis mus txog qhov sib npaug ntawm lub xeev, thiab npaj rau kev ua haujlwm tom ntej thiab kev kho cua sov kawg.Kev ntxhov siab nyem annealing yog txheej txheem annealing los tshem tawm cov kev ntxhov siab uas tshwm sim los ntawm kev ua cov yas deformation, vuam, thiab lwm yam thiab muaj nyob rau hauv lub casting.Muaj kev ntxhov siab sab hauv hauv lub workpiece tom qab forging, casting, vuam thiab txiav.Yog tias nws tsis raug tshem tawm hauv lub sijhawm, lub workpiece yuav deformed thaum lub sij hawm ua thiab siv, uas yuav cuam tshuam qhov tseeb ntawm lub workpiece.
Nws yog ib qho tseem ceeb heev uas yuav tau siv cov kev ntxhov siab annealing los tshem tawm cov kev ntxhov siab sab hauv tsim thaum ua.Cov cua kub kub ntawm kev ntxhov siab annealing yog qis dua theem hloov pauv kub, yog li ntawd, tsis muaj kev hloov pauv ntawm cov txheej txheem tshwm sim thaum tag nrho cov txheej txheem kho cua sov.Cov kev ntxhov siab sab hauv feem ntau yog tshem tawm ib txwm ua los ntawm cov khoom ua haujlwm thaum lub sijhawm khaws cua sov thiab ua kom txias txias.
Txhawm rau kom tshem tawm cov kev ntxhov siab sab hauv ntawm lub workpiece kom huv si, cov cua sov yuav tsum tau tswj xyuas thaum cua sov.Feem ntau, nws yog muab tso rau hauv lub cub tawg ntawm qhov kub thiab txias, thiab tom qab ntawd muab tso rau hauv qhov cub kom sov rau qhov ntsuas kub ntawm qhov kub ntawm txog 100 ° C / h.Cov cua kub ntawm qhov vuam yuav tsum yog me ntsis siab dua 600 ° C.Lub sijhawm tuav yog nyob ntawm qhov xwm txheej, feem ntau 2 mus rau 4 teev.Lub sij hawm tuav ntawm qhov kev ntxhov siab ntawm kev ntxhov siab annealing yuav siv sij hawm qhov kev txwv siab, qhov cua txias yog tswj ntawm (20-50) ℃ / h, thiab nws tuaj yeem txias rau hauv qab 300 ℃ ua ntej nws tuaj yeem ua cua txias.
Kev laus kev kho mob yuav muab faib ua ob hom: natural aging thiab artificial aging.Ntuj kev laus yog muab tso rau hauv qhov chaw qhib rau ntau tshaj li ib nrab xyoo, yog li ntawd nws yuav tshwm sim maj mam, kom cov residual kev nyuaj siab yuav raug tshem tawm los yog txo.Artificial aging yog ua kom sov lub casting rau 550 ~ 650 ℃ Ua kev ntxhov siab nyem annealing, uas txuag lub sij hawm piv nrog ntuj aging, thiab tshem tawm cov residual kev nyuaj siab ntau.
Tempering yog dab tsi?
Tempering yog txheej txheem kev kho cua sov uas ua kom sov cov khoom siv hlau los yog qhov chaw rau qhov kub thiab txias, thiab tom qab ntawd txias rau hauv qee txoj kev tom qab tuav rau qee lub sijhawm.Tempering yog ib qho kev ua haujlwm tam sim ntawd tom qab quenching, thiab feem ntau yog kev kho cua sov kawg ntawm lub workpiece.Yog li ntawd, kev sib koom ua ke ntawm quenching thiab tempering yog hu ua kev kho cua sov kawg.Lub hom phiaj tseem ceeb ntawm quenching thiab tempering yog:
1) Txo cov kev ntxhov siab sab hauv thiab txo qhov brittleness.Quenched qhov chaw muaj kev ntxhov siab zoo thiab brittleness.Yog hais tias lawv tsis tempered nyob rau hauv lub sij hawm, lawv yuav feem ntau deform los yog txawm tawg.
2) Kho cov khoom siv kho tshuab ntawm lub workpiece.Tom qab quenching, lub workpiece muaj siab hardness thiab siab brittleness.Txhawm rau ua kom tau raws li qhov sib txawv ntawm kev ua haujlwm ntawm ntau yam haujlwm, nws tuaj yeem hloov kho los ntawm tempering, hardness, lub zog, plasticity thiab toughness.
3) ruaj khov workpiece loj.Cov qauv metallographic tuaj yeem ruaj khov los ntawm tempering kom ntseeg tau tias tsis muaj deformation yuav tshwm sim thaum siv yav tom ntej.
4) Txhim kho qhov kev ua tau zoo ntawm qee cov hlau alloy.
Hauv kev tsim khoom, nws feem ntau yog raws li qhov yuav tsum tau ua rau kev ua haujlwm ntawm lub workpiece.Raws li cov cua kub sib txawv, tempering tau muab faib ua qhov kub thiab txias, nruab nrab kub tempering, thiab kub tempering.Cov txheej txheem kev kho cua sov sib xyaw ua ke thiab tom qab kub kub yog hu ua quenching thiab tempering, uas yog, nws muaj qhov zoo plasticity thiab toughness thaum muaj lub zog siab.Nws yog tsuas yog siv los tuav lub tshuab ua haujlwm nrog cov khoom loj, xws li tshuab cuab yeej spindles, tsheb rear qag shafts, muaj zog zog, thiab lwm yam.
Dab tsi yog quenching?
quenching yog txheej txheem kev kho cua sov uas ua kom sov cov khoom siv hlau lossis cov khoom saum toj kawg nkaus ntawm qhov hloov pauv kub, thiab tom qab ntawd maj mam txias ntawm tus nqi siab dua qhov tseem ceeb ntawm qhov txias txias tom qab kev txuag hluav taws xob kom tau txais cov qauv martensitic.quenching yog kom tau txais cov qauv martensitic, thiab tom qab tempering, lub workpiece tuaj yeem tau txais kev ua haujlwm zoo, thiaj li tsim kom muaj peev xwm ntawm cov khoom siv.Nws lub hom phiaj tseem ceeb yog:
1) Txhim kho cov khoom siv hluav taws xob ntawm cov khoom siv hlau lossis cov khoom siv.Piv txwv li: kev txhim kho lub hardness thiab hnav tsis kam ntawm cov cuab yeej, bearings, thiab lwm yam., ua kom cov elastic txwv ntawm springs, kev txhim kho cov khoom ntawm txhua yam ntawm ncej, thiab lwm yam.
2) Txhim kho cov khoom siv lossis tshuaj lom neeg ntawm qee cov hlau tshwj xeeb.Xws li kev txhim kho corrosion tsis kam ntawm stainless hlau, ua kom cov hlau nplaum ruaj khov ntawm cov hlau nplaum, thiab lwm yam.
Thaum quenching thiab txias, ntxiv rau qhov tsim nyog xaiv ntawm quenching nruab nrab, txoj kev quenching kom raug.Cov kev siv quenching feem ntau suav nrog ib leeg-kua quenching, ob-kua quenching, qib quenching, isothermal quenching, thiab ib nrab quenching.
Qhov sib txawv thiab kev sib txuas ntawm normalizing, quenching, annealing thiab tempering
Lub hom phiaj thiab kev siv ntawm normalizing
① Rau cov hlau hypoeutectoid, normalizing yog siv los tshem tawm cov txheej txheem overheated coarse-grained thiab Widmanstatten qauv ntawm castings, forgings, thiab weldments, thiab cov qauv banded hauv cov ntaub ntawv dov;ua kom cov nplej;thiab tuaj yeem siv los ua kev kho cua sov ua ntej ua ntej quenching.
② Rau cov hlau hypereutectoid, normalizing tuaj yeem tshem tawm cov reticular thib ob cementite thiab ua kom zoo pearlite, uas tsis tsuas yog txhim kho cov khoom siv dag zog, tab sis kuj pab txhawb kev spheroidizing annealing tom qab.
③ Rau qis-carbon sib sib zog nqus-dawb daim hlau nyias, normalizing tuaj yeem tshem tawm cov cementite dawb ntawm cov ciam teb txhawm rau txhim kho lawv cov khoom sib sib zog nqus.
④ Rau cov hlau tsis muaj cov pa roj carbon tsawg thiab cov hlau tsis tshua muaj cov hlau tsis tshua muaj hlau, siv cov txheej txheem kom tau txais cov qauv zoo-flaky pearlite ntau dua, ua kom cov tawv tawv rau HB140-190, zam qhov tshwm sim ntawm "nplaum riam" thaum txiav, thiab txhim kho machinability.Rau nruab nrab carbon steel, thaum ob qho tib si normalizing thiab annealing yuav siv tau, nws yog ntau yig thiab yooj yim rau siv normalizing.
⑤ Rau cov qauv nruab nrab-cov pa roj carbon zoo tib yam, normalizing tuaj yeem siv es tsis txhob quenching thiab high-temperature tempering thaum cov khoom siv tsis zoo, uas tsis yog yooj yim rau kev khiav lag luam, tab sis kuj stabilizes cov qauv thiab qhov loj ntawm cov hlau.
⑥ normalizing ntawm qhov kub thiab txias (150-200 ° C saum toj no Ac3) tuaj yeem txo cov kev sib cais ntawm cov castings thiab forgings vim qhov sib txawv ntawm qhov kub thiab txias.Cov nplej ntxhib tom qab normalizing ntawm qhov kub thiab txias tuaj yeem ua kom zoo dua los ntawm kev normalizing tom qab ntawm qhov kub qis dua thib ob.
⑦ Rau qee qhov qis thiab nruab nrab carbon alloy steels siv nyob rau hauv chav turbines thiab boilers, normalizing feem ntau yog siv kom tau bainite qauv, thiab ces tempered ntawm kub.Nws muaj kev nkag siab zoo thaum siv ntawm 400-550 ° C.
⑧ Ntxiv rau cov khoom siv hlau thiab cov khoom siv hlau, normalizing kuj yog siv dav hauv kev kho cua sov ntawm cov hlau kom tau txais pearlite matrix thiab txhim kho lub zog ntawm cov hlau hlau.
Txij li thaum normalizing yog tus cwj pwm los ntawm huab cua txias, qhov kub thiab txias, stacking txoj kev, airflow thiab workpiece loj tag nrho muaj kev cuam tshuam rau cov qauv thiab kev ua tau zoo tom qab normalizing.Cov qauv normalized kuj tseem siv tau raws li kev faib tawm ntawm cov hlau alloy.Feem ntau, alloy steels tau muab faib ua pearlite steel, bainite steel, martensitic steel thiab austenitic steel raws li cov microstructure tau los ntawm cua sov cov qauv nrog ib txoj kab uas hla ntawm 25 hli mus rau 900 ° C thiab cua txias.
Annealing yog txheej txheem kev kho cua sov hlau uas cov hlau maj mam rhuab mus rau qhov kub thiab txias, khaws cia rau lub sijhawm txaus, thiab tom qab ntawd txias ntawm tus nqi tsim nyog.Annealing kev kho cua sov yog muab faib ua tiav annealing, tsis tiav annealing thiab kev ntxhov siab nyem annealing.Cov khoom siv ntawm cov khoom siv annealed tuaj yeem kuaj tau los ntawm kev sim tensile lossis hardness test.Ntau cov khoom siv hlau tau muab rau hauv lub xeev ntawm annealing thiab kev kho cua sov.
Rockwell hardness tester tuaj yeem siv los ntsuas qhov nyuaj ntawm cov hlau.Rau cov hlau nyias nyias, steel strips thiab nyias-walled steel kav, nto Rockwell hardness testers tuaj yeem siv los kuaj HRT hardness.
Lub hom phiaj ntawm annealing yog:
① Txhim kho lossis tshem tawm ntau yam kev ua haujlwm tsis zoo thiab cov kev ntxhov siab uas tshwm sim los ntawm steel casting, forging, dov thiab vuam, thiab tiv thaiv deformation thiab tawg ntawm workpieces.
② soften lub workpiece rau txiav.
③ Refining cov nplej thiab txhim kho cov qauv txhawm rau txhim kho cov khoom siv ntawm cov khoom ua haujlwm.
④ Ua cov txheej txheem npaj rau kev kho cua sov zaum kawg (quenching, tempering).
Feem ntau siv cov txheej txheem annealing
① Ua kom tag nrho.Nws yog siv los kho cov qauv coarse superheated nrog cov khoom siv tsis zoo tom qab casting, forging thiab vuam ntawm nruab nrab thiab qis carbon steel.Thaum tshav kub kub ntawm lub workpiece mus rau 30-50 ° C saum toj no qhov kub ntawm lub ferrite yog kiag li hloov mus rau hauv austenite, cia nws sov rau ib lub sij hawm ntawm lub sij hawm, thiab ces txias maj mam nrog lub cub tawg.Thaum lub sij hawm ua kom txias, lub austenite yuav hloov dua siab tshiab los ua cov qauv hlau nyias.
② Spheroidizing annealing.Nws yog siv los txo qhov siab hardness ntawm cov cuab yeej steel thiab bearing steel tom qab forging.Lub workpiece yog rhuab mus rau 20-40 ° C siab tshaj qhov kub ntawm cov hlau pib tsim austenite, thiab ces maj mam txias tom qab cua sov preservation.Thaum lub sij hawm txias, lamellar cementite nyob rau hauv lub pearlite ua spherical, yog li txo cov hardness.
③ Isothermal annealing.Nws yog siv los txo cov siab hardness ntawm qee cov qauv hlau alloy nrog siab nickel thiab chromium cov ntsiab lus rau kev txiav.Feem ntau, nws yog thawj zaug txias rau qhov tsis ruaj khov tshaj plaws ntawm austenite ntawm tus nqi nrawm dua, thiab khaws cia rau lub sijhawm tsim nyog, austenite yuav hloov mus rau hauv troostite lossis sorbite, thiab qhov hardness tuaj yeem txo.
④ Recrystallization annealing.Nws yog siv los tshem tawm qhov tshwm sim hardening (nce hardness thiab txo nyob rau hauv plasticity) ntawm hlau hlau thiab nyias phaj nyob rau hauv tus txheej txheem ntawm txias txias thiab txias dov.Cov cua kub feem ntau yog 50-150 ° C hauv qab qhov kub ntawm qhov uas cov hlau pib tsim austenite.Tsuas yog nyob rau hauv txoj kev no tuaj yeem ua haujlwm hardening nyhuv yuav raug tshem tawm thiab cov hlau softened.
⑤ Graphitization annealing.Nws yog siv los tig cam khwb cia hlau uas muaj ntau cov cementite rau hauv malleable cam khwb cia hlau nrog zoo plasticity.Cov txheej txheem ua haujlwm yog kom sov lub casting mus txog 950 ° C, kom nws sov rau ib lub sij hawm ntawm lub sij hawm thiab ces txias nws kom decompose cov cementite los ua ib pawg ntawm flocculent graphite.
⑥ Diffusion annealing.Nws yog siv los homogenize cov tshuaj muaj pes tsawg leeg ntawm alloy castings thiab txhim kho lawv cov kev ua tau zoo.Cov txheej txheem yog ua kom sov lub casting mus rau qhov kub siab tshaj plaws uas tsis muaj melting, thiab ua kom sov rau lub sij hawm ntev, thiab maj mam txias tom qab lub diffusion ntawm ntau yam nyob rau hauv lub alloy nyhav kom sib npaug.
⑦ Kev ntxhov siab rau kev ntxhov siab.Siv los tshem tawm cov kev ntxhov siab sab hauv ntawm steel castings thiab weldments.Rau cov khoom siv hlau thiab hlau rhuab mus rau 100-200 ° C hauv qab qhov kub ntawm austenite pib tsim, cua txias hauv huab cua tom qab kev txuag hluav taws xob tuaj yeem tshem tawm kev ntxhov siab sab hauv.
Quenching, txheej txheem kev kho cua sov rau cov hlau thiab iav.Cov khoom siv cua sov los yog iav rau qhov kub thiab txias, thiab tom qab ntawd maj mam txias hauv dej, roj lossis cua, feem ntau yog siv los ua kom lub zog thiab lub zog ntawm cov hlau.Feem ntau hu ua "dipping fire".Kev kho cua sov hlau uas rov ua kom lub tshuab ua haujlwm quenched mus rau qhov tsim nyog kub qis dua qhov kub tseem ceeb, thiab tom qab ntawd txias nws hauv huab cua, dej, roj thiab lwm yam xov xwm tom qab tuav nws rau lub sijhawm.
Steel workpieces muaj cov yam ntxwv nram qab no tom qab quenching:
①Unbalanced (uas yog, tsis ruaj khov) cov qauv xws li martensite, bainite, thiab khaws cia austenite tau txais.
②Muaj kev ntxhov siab loj hauv.
③Cov khoom siv kho tshuab tsis tuaj yeem ua tau raws li qhov yuav tsum tau ua.Yog li ntawd, steel workpieces feem ntau yuav tsum tau tempered tom qab quenching.
Lub luag hauj lwm ntawm tempering
① Txhim kho qhov ruaj khov ntawm cov qauv, kom cov khoom ua haujlwm yuav tsis muaj cov ntaub so ntswg hloov thaum siv, yog li qhov loj me thiab kev ua haujlwm ntawm lub workpiece yuav ruaj khov.
② Tshem tawm kev ntxhov siab sab hauv txhawm rau txhawm rau txhim kho kev ua haujlwm ntawm lubcnc ntuthiab stabilize geometric qhov ntev ntawm lubmilled qhov chaw.
③ Kho cov khoom siv ntawm cov hlau kom ua tau raws li qhov xav tau ntawm kev siv.
* Yog vim li cas vim li cas tempering muaj cov teebmeem no yog tias thaum kub nce, qhov kev ua ntawm atoms nce, thiab atoms ntawm hlau, carbon thiab lwm yam alloying ntsiab nyob rau hauv hlau yuav diffuse sai sai kom paub lub rearrangement ntawm atoms, yog li ua rau lawv tsis ruaj tsis khov.Lub koom haum tsis sib npaug maj mam hloov mus rau hauv lub koom haum ruaj khov.Kev nyem ntawm kev ntxhov siab sab hauv kuj tseem cuam tshuam nrog kev txo qis hauv cov hlau hlau thaum kub nce.Feem ntau, thaum cov hlau yog tempered, hardness thiab lub zog txo, thiab cov plasticity nce.Qhov siab dua qhov kub thiab txias, qhov hloov pauv ntawm cov khoom siv tshuab no ntau dua.Qee cov hlau alloys nrog cov ntsiab lus siab ntawm cov ntsiab lus alloying yuav ua rau qee qhov zoo-grained hlau tebchaw thaum tempered nyob rau hauv ib tug tej yam kub kub, uas yuav ua rau kom lub zog thiab hardness.
Qhov tshwm sim no hu ua Secondary hardening.
Tempering xav tau:workpieces nrog kev siv sib txawv yuav tsum tau tempered ntawm qhov sib txawv ntawm qhov kub thiab txias kom ua tau raws li qhov xav tau ntawm kev siv.
① Cov cuab yeej txiav, bearings, carburized thiab quenched qhov chaw, thiab nto quenched qhov chaw feem ntau yog tempered ntawm qhov kub ntawm 250 ° C.Tom qab qhov ntsuas kub qis, qhov hardness tsis hloov ntau, qhov kev ntxhov siab sab hauv yuav txo qis, thiab lub toughness zoo dua me ntsis.
② Lub caij nplooj ntoos hlav yog tempered ntawm nruab nrab kub ntawm 350-500 ° C kom tau siab elasticity thiab tsim nyog toughness.
③ Cov khoom ua los ntawm nruab nrab carbon structural steel feem ntau yog tempered ntawm qhov kub ntawm 500-600 ° C kom tau txais kev sib xyaw zoo ntawm lub zog thiab tawv.
Cov txheej txheem kev kho cua sov ntawm quenching thiab kub tempering yog sib sau ua ke hu ua quenching thiab tempering.
Thaum cov hlau yog tempered ntawm ib ncig ntawm 300 ° C, nws brittleness feem ntau nce.Qhov tshwm sim no yog hu ua thawj hom temper brittleness.Feem ntau, nws yuav tsum tsis txhob tempered nyob rau hauv qhov kub thiab txias.Qee qhov nruab nrab carbon alloy structural steels kuj yuav ua rau nkig yog tias lawv maj mam txias rau hauv chav tsev kub tom qab kub tempering.Qhov tshwm sim no yog hu ua hom thib ob ntawm temper brittleness.Qhov sib ntxiv ntawm molybdenum rau cov hlau, los yog txias hauv cov roj los yog dej thaum lub sij hawm tempering, tuaj yeem tiv thaiv ob hom temper brittleness.Qhov no brittleness yuav raug tshem tawm los ntawm reheating hom thib ob ntawm temper brittle steel rau thawj tempering kub.
Annealing ntawm steel
Tswv yim: Cov hlau yog rhuab, khaws cia sov thiab ces txias maj mam kom tau ib tug txheej txheem nyob ze rau lub equilibrium qauv.
1. Tag nrho cov annealed
Txheej txheem: Cua sov Ac3 saum toj no 30-50 ° C → tshav kub → txias kom qis dua 500 ° C nrog lub cub tawg → cua txias ntawm chav tsev kub.
Lub hom phiaj: txhawm rau ua kom cov nplej zoo, cov qauv zoo ib yam, txhim kho cov yas toughness, tshem tawm cov kev ntxhov siab sab hauv, thiab pab txhawb kev ua haujlwm.
2. Isothermal annealing
Txheej txheem: Cua sov saum Ac3 → kev txuag hluav taws xob → cua txias sai rau lub pearlite hloov kub → isothermal nyob → transformation rau hauv P → cua txias tawm ntawm lub cub tawg;
Lub hom phiaj: Ib yam li saum toj no.Tab sis lub sij hawm luv luv, yooj yim los tswj, thiab deoxidation thiab decarburization yog me me.(Siv tau rau cov hlau alloy thiab cov pa roj carbon ntaumachining steel qhov chawnrog kev ruaj khov supercooling A).
3. Spheroidizing annealing
Tswv yim:Nws yog cov txheej txheem ntawm spheroidizing cementite hauv hlau.
Yam khoom:Eutectoid thiab hypereutectoid steels
Txheej txheem:
(1) Isothermal spheroidizing annealing cua sov saum toj no Ac1 txog 20-30 degrees → tiv thaiv tshav kub → ceev txias kom 20 degrees hauv qab Ar1 → isothermal → txias txog li 600 degrees nrog rau lub cub tawg → cua txias tawm ntawm lub cub tawg.
(2) Ordinary spheroidizing annealing cua sov Ac1 saum toj no 20-30 degrees → kev txuag hluav taws xob → txias qeeb heev txog li 600 degrees → cua txias tawm ntawm lub cub tawg.(Lub voj voog ntev, ua haujlwm qis, tsis siv tau).
Lub hom phiaj: txo hardness, txhim kho plasticity thiab toughness, thiab pab txiav.
Mechanism: Ua daim ntawv lossis network cementite rau hauv granular (spherical)
Kev piav qhia: Thaum annealing thiab cua sov, cov qauv tsis tiav A, yog li nws tseem hu ua tsis tiav annealing.
4. Kev ntxhov siab ntxhov siab annealing
Txheej txheem: cua sov rau qee qhov kub hauv qab Ac1 (500-650 degrees) → txuag hluav taws xob → txias txias rau chav sov.
Lub hom phiaj: Tshem tawm cov seem sab hauv kev nyuaj siab ntawm castings, forgings, weldments, thiab lwm yam, thiab stabilize qhov loj ntawm covcustomized machining qhov chaw.
Hlau tempering
Txheej txheem: Rov ua kom cov hlau quenched rau qhov kub hauv qab A1 thiab ua kom sov, tom qab ntawd txias (feem ntau cua txias) mus rau chav tsev kub.
Lub hom phiaj: Tshem tawm cov kev ntxhov siab sab hauv los ntawm quenching, stabilize workpiece loj, txo brittleness, thiab txhim kho kev ua haujlwm.
Mechanical zog: Raws li qhov kub thiab txias nce, qhov hardness thiab lub zog txo, thaum lub plasticity thiab toughness nce.
1. Tsawg kub tempering: 150-250 ℃, M lub sij hawm, txo cov kev ntxhov siab thiab brittleness, txhim kho cov yas toughness, muaj zog dua hardness thiab hnav tsis kam.Siv los ua cov cuab yeej ntsuas, riam thiab dov bearings, thiab lwm yam.
2. Tempering ntawm nruab nrab kub: 350-500 ° C, T lub sij hawm, nrog siab elasticity, tej yam yas thiab hardness.Siv los ua cov springs, forging tuag, thiab lwm yam.
3. Kub kub tempering: 500-650 ℃, S lub sij hawm, nrog cov khoom zoo txhua yam.Siv los ua cov iav, crankshafts, thiab lwm yam.
Anebon muab kev ua tau zoo heev hauv kev ua tau zoo thiab kev nce qib, kev muag khoom, kev muag khoom tag nrho thiab kev txhawb nqa thiab kev ua haujlwm rau OEM / ODM Chaw Tsim Tshuaj Precision Hlau Stainless Hlau.Txij li thaum lub chaw tsim khoom tsim, Anebon tau cog lus rau kev nce qib ntawm cov khoom tshiab.Nrog rau kev sib raug zoo thiab kev lag luam pace, peb yuav txuas ntxiv mus rau pem hauv ntej tus ntsuj plig ntawm "zoo heev, ua haujlwm zoo, kev tsim kho tshiab, kev ncaj ncees", thiab nyob nrog lub hauv paus ntsiab lus ntawm kev khiav hauj lwm ntawm "credit thawj zaug, cov neeg siv khoom 1, cov khoom zoo heev".Anebon yuav tsim lub neej yav tom ntej zoo tshaj plaws hauv cov plaub hau tso zis nrog peb tus khub.
OEM / ODM Chaw tsim tshuaj paus Tuam Tshoj Casting thiab Steel Casting, tsim, ua, yuav, tshuaj xyuas, cia, assembling txheej txheem yog tag nrho cov nyob rau hauv scientific thiab zoo ntaub ntawv txheej txheem, nce qib kev pab thiab kev cia siab ntawm peb hom sib sib zog nqus, uas ua rau Anebon ua superior tsum ntawm lub plaub yam khoom loj, xws li CNC machining, CNC milling qhov chaw, CNC tig thiab hlau castings.
Post lub sij hawm: May-15-2023