Yog vim li cas tseem ceeb: Restoring Plasticity kom tsis txhob tawg
1. Ua haujlwm hnyav
Stainless hlau raw khoom (feem ntau coiled khoom) muaj ib tug tej yam lub zog thiab hardness thaum tawm hauv lub Hoobkas, raws li zoo raws li zoo ductility. Txawm li cas los xij, thaum lub sij hawm kev thauj mus los, cia, pib blanking, thiab stamping, cov ntaub ntawv undergoes ib tug npaum li cas ntawm cov yas deformation. Qhov no deformation ua rau cov hlau lattice distort thiab nce dislocation ceev, ua rau muaj zog thiab hardness, tab sis txo plasticity thiab toughness. Qhov tshwm sim no hu ua "kev ua haujlwm nyuaj."
2. Kev sib tw ntawm kev kos duab sib sib zog nqus
Kev ncab ib daim ntawv tiaj tus, puag ncig rau hauv qhov sib sib zog nqus, thoob - puab liner yog ib qho txheej txheem yas deformation zoo heev. Nws xav tau qhov tseem ceeb, cov khoom tsis sib xws. Yog tias qhov sib sib zog nqus nqus tau ua tiav ntawm cov khoom siv tawv uas twb tau ua "ua haujlwm tawv," cov khoom siv los ntawm ductility tsis txaus los daws qhov loj deformation. Raws li qhov tshwm sim, "kev tawg" yuav tshwm sim ntawm cov ntsiab lus tsis muaj zog (feem ntau yog cov ces kaum lossis hauv paus) thaum lub sijhawm kos duab.
Lub luag haujlwm ntawm Annealing: "Resetting" lub xeev cov khoom
Annealing yog txheej txheem kev kho cua sov uas hloov cov khoom siv microstructure los ntawm cua sov thiab cua txias. Lub hom phiaj tseem ceeb ntawm no yog kom tshem tawm tag nrho kev ua haujlwm nyuaj. Qhov pib deformed stainless hlau workpiece yog rhuab mus rau saum nws cov recrystallization kub (feem ntau 1040-1120℃rau austenitic stainless hlau zoo li 304), tuav ntawm qhov kub no rau ib lub sij hawm ntawm lub sij hawm, thiab ces txias nyob rau hauv kev tswj tej yam kev mob.
Microscopic Hloov:
Thaum lub sij hawm annealing cua sov txheej txheem, qhov txias -deformed, distorted siv lead ua lattice undergoes ib tug "recrystallization" txheej txheem, tsim tshiab, kev nyuaj siab-dawb, equiaxed me nplej. Tag nrho cov dislocations thiab kev ntxhov siab sab hauv qhia los ntawm kev ua haujlwm txias yog tshem tawm tag nrho.
Cov txiaj ntsig macroscopic:
Cov khoom siv lub zog thiab hardness yog txo qis.
Cov khoom siv plasticity thiab ductility rov qab mus rau lawv lub xeev zoo, dhau los ua "mos."
Ntawm no, cov ntawv hlau stainless zoo li khob noom cookie, yooj yim thiab sib sib zog nqus stretched yam tsis muaj cracking
Summary: Direct Drawing vs. Annealing Ua ntej Kos duab
|
Yam ntxwv |
Drawing TSIS MUAJ Annealing |
Teeb duab tom qab Annealing |
|
Material State |
Hard, Brittle (Ua haujlwm-Hardened) |
Mos, Ductile (Annealed) |
|
Daim duab tshwm sim |
Muaj kev pheej hmoo ntawm kev tawg, tawg, thiab wrinkling; tus nqi qis |
Kev ua tiav zoo, du nto, tsis muaj kab nrib pleb |
|
Pwm Lub Neej |
Kev kos duab siab, pwm hnav sai, nquag ua kom puas |
Kev kos duab qis dua, lub neej pwm ntev dua |
|
Khoom Zoo |
High residual kev nyuaj siab, nquag distortion, tsis ruaj tsis khov |
Qhov ntev ruaj khov, tsis tshua muaj kev ntxhov siab, siab thiab zoo ib yam |
Xaus:
Annealing yog ib qho tseem ceeb ua ntej - cov kauj ruam ua kom paub meej tias lub lauj kaub hlau tsis muaj peev xwm ua tiav kev kos duab sib sib zog nqus, ua tiav cov khoom lag luam siab thiab cov khoom zoo tshaj. Nws ua zoo li "rov pib dua" rau cov khoom siv, npaj nws tag nrho rau qhov xav tau "kev ua haujlwm" ua ntej.
Dab tsi tshuab ua cov txheej txheem annealing rau Stainless Hlau lauj kaub
Induction Annealing Tshuab - Tsim nyog rau kev kho cua sov hauv zos, xws li lub lauj kaub hlau stainless
Txoj Cai Ua Haujlwm: Ib qho induction coil tsim ib qho chaw sib nqus sib nqus, ua rau cov eddy tam sim no nyob rau hauv lub lauj kaub hlau stainless, ua rau nws kub nws tus kheej. Lub tshuab no feem ntau heats ib cheeb tsam ntawm lub lauj kaub (xws li thaj chaw uas yuav tsum tau ncab) sai sai. Qhov no yog qhov zoo tagnrho rau kev tsim cov lauj kaub stainless hlau. Peb tsuas yog yuav tsum tau anneal 7-8 cm qhib ntawm lub lauj kaub stainless hlau ua ntej ua cov txheej txheem ncab theem nrab.
Cov txiaj ntsig tseem ceeb:
1. Cov cua kub ceev ceev heev: Annealing kub yog feem ntau mus txog li kaum vib nas this.
2. Kev siv hluav taws xob: Lub zog siv ncaj qha mus rau qhov chaw ua haujlwm, ua rau muaj kev ua haujlwm siab thermal.
3. Kev sib koom ua ke yooj yim rau hauv cov kab ntau lawm: Lub tshuab tshwj xeeb tuaj yeem tsim tau sai hauv - kab ua haujlwm ntawm ib tus neeg ua haujlwm
.
Yog tias koj tab tom nrhiav rau lub lauj kaub stainless hlau ntau lawm kab lossis lub tshuab annealing, thov hu rau peb!
Foshan Davinci Technology Co., Ltd
Lub Vev Xaib: www.davinci-machine.com
Whatsapp / Wechat / Xov tooj: +8618029293151
Email: sales1@vincienegy.com
Jenny Yaj