Qhov sib txawv ntawm annealing thiab tempering ntawm stainless hlau
Tso lus
Qhov sib txawv ntawm annealing thiab tempering ntawm stainless hlau
Dab tsi yog stainless hlau annealing txheej txheem?
Annealing muaj cua sov stainless hlau mus rau qhov ntsuas kub thiab tom qab ntawd maj mam txias cov khoom hauv kev tswj hwm. Cov hlau tsis muaj steel yog muab tso rau hauv lub qhov cub annealing, uas yog qhov loj txaus kom tso cua mus ncig ntawm qhov chaw ua haujlwm. Cov hlau yog rhuab mus rau qhov kub thiab txias qhov twg recrystallization tuaj yeem tshwm sim, kho Txhua qhov teeb meem tshwm sim los ntawm deformation los yog ua hauj lwm hardening. Thaum cov hlau tuav ntawm qhov xav tau qhov kub thiab txias rau lub sijhawm ruaj khov, nws txias maj mam mus rau chav sov. Cov nqi qis qis ua rau qhov muag muag thiab tsim cov microstructures zoo. Qhov no tuaj yeem ua tiav los ntawm kev tsuas yog tua lub qhov cub thiab tso cai rau cov hlau kom txias nyob rau hauv lossis los ntawm immersing cov khoom cua sov hauv cov xuab zeb, tshauv, lossis lwm yam khoom siv qis.
Annealing tuaj yeem muab faib ua peb theem:
Rov qab: Lub sijhawm rov ua haujlwm yuav tsum ua kom sov cov hlau tsis huv kom loosen cov khoom siv sab hauv.
Recrystallization: Raws li qhov kub thiab txias nce, cov hlau mus txog qhov chaw uas recrystallization tuaj yeem tshwm sim, tso cai rau cov nplej tshiab los tsim cov hlau sab hauv cov qauv tsis muaj kev ntxhov siab. Qhov ntsuas kub ntawm theem no yuav tsum tau siab tshaj qhov ntsuas kub ntawm cov hlau tsis huv, tab sis hauv qab nws cov ntsiab lus melting.
Cov qoob loo loj hlob: Kev tswj cov cua txias pab tsim cov nplej tsim thaum lub sij hawm recrystallization, ua rau cov khoom siv ntau dua thiab cov khoom siv tawv dua.
Annealing daim ntawv thov:
Annealing feem ntau yog siv los txo cov hardness thiab ua kom cov ductility ntawm stainless hlau, tab sis nws kuj siv tau los txhim kho hluav taws xob conductivity. Cov txheej txheem no softens cov hlau txaus kom ua haujlwm txias, txhim kho kev ua haujlwm thiab rov ua kom ductility. Qhov no yog qhov tseem ceeb rau ntau yam kev siv tseem ceeb, vim tias kev ua haujlwm txias tsis muaj annealing tuaj yeem ua rau tawg. Cov txheej txheem annealing tso tawm cov neeg kho tshuab kev ntxhov siab tsim los ntawm machining lossis sib tsoo, tso cai rau kev ua haujlwm ntxiv ntawm cov hlau. Cov txheej txheem no feem ntau yog siv los ntawm cov hlau tsis muaj steel, tab sis nws kuj tuaj yeem siv rau cov hlau xws li txhuas, tooj dag, thiab tooj liab.
Dab tsi yog stainless hlau tempering txheej txheem?
Tempering yog txheej txheem ntawm cua sov stainless hlau precisely hauv qab nws qhov tseem ceeb kub. Qhov no feem ntau yog ua nyob rau hauv huab cua, nqus tsev, los yog ib qho chaw inert, thiab lub caij nyoog kub nws txawv nyob ntawm seb qhov xav tau hardness txo. Kev kub siab dua yuav txo qhov hardness thiab nce elasticity thiab plasticity, tab sis lawv ua rau txo qis yield thiab tensile zog. Qhov kub qis dua khaws feem ntau ntawm hardness thaum txo brittleness. Tempering yuav tsum maj mam cua sov ntawm cov hlau los tiv thaiv kev tawg, thiab thaum lub siab xav tau mus txog, nws yuav txuas ntxiv rau lub sijhawm. Cov lus qhia ntxhib yog ib teev ib nti ntawm tuab, txawm hais tias qhov no nyob ntawm hom hlau raug kho. Cov cua sov tshem tawm cov kev ntxhov siab sab hauv ntawm cov hlau, uas tom qab ntawd txias sai sai hauv huab cua.
Ib tus tuaj yeem nkag siab qhov cuam tshuam ntawm tempering ntawm cov hlau los ntawm kev ntsuam xyuas cov xim uas tshwm rau saum npoo ntawm tempered steel. Cov xim muaj xws li daj ntseg daj mus rau qhov sib txawv ntxoov xiav, nyob ntawm seb yam xws li cov pa roj carbon. Cov xim no tso cai rau kev ntsuam xyuas ntawm cov hlau qhov kawg ntawm cov khoom.
Tempering kev siv:
Tempering yog siv los txhim kho lub toughness ntawm stainless hlau. Nws yog feem ntau ua tom qab hardening los txo cov hardness ntau dhau. Txawm hais tias untempered steel yog ib qho nyuaj heev, nws feem ntau yog nkig heev rau feem ntau cov ntawv thov kev lag luam. Tempering tuaj yeem hloov qhov ductility, hardness, lub zog, ruaj khov, thiab toughness.
Qhov txawv ntawm annealed stainless hlau thiab tempered stainless hlau:
Txawm hais tias ob qho tib si txheej txheem suav nrog kev kho cua sov, lawv ua raws li cov cai sib txawv los tsim cov txiaj ntsig sib txawv rau cov hom phiaj tshwj xeeb.
Tempered stainless hlau yog siv rau hauv cov ntawv thov uas muaj zog, toughness, thiab elasticity yog qhov tseem ceeb. Cov no suav nrog kev tsim kho loj, kev siv tshuab, thiab tsheb tsav tsheb. Tempering ua rau cov ntawv thov no ua tau thiab txo cov kev pheej hmoo cuam tshuam.
Annealing tsim cov khoom siv stainless hlau softer haum rau cov khoom uas tsis tas yuav tiv taus kev kub ntxhov. Qhov no suav nrog ntau yam khoom siv hauv tsev thiab lwm yam khoom siv niaj hnub.
Hauv kev xaus
Raws li tau hais ua ntej, nyob rau hauv rooj plaub ntawm HZW, cov txheej txheem hardening feem ntau cuam tshuam nrog txias dov ntawm cov khoom es tsis yog kev kho cua sov. Nyob rau hauv lem, yog hais tias ib qho kev kho mob yuav tsum tau ib tug sib sib zog nqus nqus txheej txheem, nws raug nquahu kom ua raws li cov txheej txheem annealing ua ntej xa khoom. Kev ntxhov siab los ntawm annealing (Tseem hu ua mos annealing) tom qab ib tug nruj txias dov hardening txheej txheem ua rau cov khoom ntau ductile.
Ob qho tib si tempering thiab annealing yog qhov tseem ceeb raws li cov txheej txheem cua sov hauv kev lag luam stainless hlau sawb, muab kev pom zoo rau cov khoom siv lub zog thiab hardness zog.
