Induction annealing yog dab tsi?
Induction annealing yog ib feem ntawm induction cua sov. Lub hom phiaj ntawm induction annealing yog hloov cov khoom siv hlau hardness, toughness, thiab sab hauv kev ntxhov siab kom ua tiav cov khoom zoo tshaj plaws. Lub ntsiab kom zoo dua ntawm induction annealing yog hais tias lub workpiece yuav tsum tau rhuab nyob rau hauv ib tug lub hom phiaj thiab rov ua dua kom ib txwm ua kom zoo ib yam. Vim tias cov cua sov tau tsim ncaj qha rau hauv qhov chaw ua haujlwm los ntawm alternating electromagnetic teb thaum lub sij hawm induction annealing, cov txheej txheem tuaj yeem tswj tau qhov tseeb thiab kev ua haujlwm siab tuaj yeem ua tiav los ntawm kev siv lub zog. Qhov no ua kom muaj kev sib faib hluav taws xob sib txawv thiab qhov tob tob ntawm lub workpiece. Nyob rau hauv induction annealing txheej txheem, tsis muaj cia li txias nrog dej los yog coolant li induction quenching, tab sis qhov kub ntawm lub workpiece yog maj mam txo. Tag nrho cov txheej txheem cua sov yog contactless thiab luv luv.
Vim li cas thiaj siv Induction Annealing?
Cov khoom siv hlau tuaj yeem txhim kho kom raug thiab ntseeg tau los ntawm induction annealing. Induction annealing yog tsuas yog siv rau softening annealing thiab kev ntxhov siab relieving annealing, uas muaj zoo zoo piv nrog cov txheej txheem ib txwm. Los ntawm induction annealing, impurities nyob rau hauv cov khoom yuav raug tshem tawm los ntawm kev kho cua sov thaum lub sij hawm huv si annealing.
- Los ntawm induction, cov txheej txheem annealing tuaj yeem txo qhov hardness ntawm cov hlau, thiab txhim kho cov yas, thiaj li pab txhawb kev txiav thiab txias deformation.
- Ua kom zoo nplej, tshem tawm cov microstructure defects tshwm sim los ntawm casting, forging, thiab vuam, txawm lub microstructure thiab muaj pes tsawg leeg ntawm steel, txhim kho cov khoom ntawm hlau los yog npaj rau lub microstructure ntawm tom qab cua sov kho.
- Tshem tawm cov kev ntxhov siab sab hauv hauv cov hlau kom tsis txhob deformation thiab tawg.
Induction annealing muab kev tswj cua sov zoo heev vim tias cov txheej txheem tuaj yeem tswj tau zoo nrog zaus, lub zog, thiab (saib brazing) induction annealing lub sij hawm raws li cov khoom xav tau. Qhov no ua kom muaj kev kho cua sov zoo heev thiab rov ua dua, uas yog qhov tseem ceeb tshwj xeeb hauv kev tsim khoom loj.
Dab tsi yog Cov Hlau Induction Annealing Txheej Txheem Thiab Daim Ntawv Thov?
Cov txheej txheem induction annealing muaj xws li homogenization annealing, ua kom tiav annealing, tsis tiav annealing, isothermal annealing, spheroidization annealing, recrystallization annealing, kev nyuaj siab annealing, thiab hais txog.
| TSIS MUAJ. | Txoj kev Annealing | Lub hom phiaj tseem ceeb | Annealing txheej txheem nta | Kev siv ntau yam |
|---|---|---|---|---|
| 1 | Diffusion annealing | Kev sib xyaw ua ke | Tshav kub rau AC30 (150-200) ℃, ua kom sov kom ntev thiab txias maj mam | Hlau casting thiab forging thiab dov qhov chaw nrog cov khoom sib cais, thiab lwm yam. |
| 2 | Tag nrho annealing | refined lub koom haum, txo cov hardness | Tshav kub rau AC30 (150-200) ℃, ua kom sov kom ntev, thiab maj mam txias | Casting, vuam qhov chaw, thiab nruab nrab carbon steel thiab nruab nrab carbon alloy steel forging thiab dov qhov chaw. |
| 3 | Ib nrab annealing | Kho cov qauv, txo hardness | Thaum tshav kub kub rau Acl 10 (40-60) ℃ thiab maj mam txias tom qab cua sov preservation | Wrought thiab dov qhov nruab nrab thiab siab carbon steel thiab qis alloy steel, thiab lwm yam. |
| 4 | Isothermal annealing | Txhim kho cov qauv, txo hardness, thiab tiv thaiv cov pob dawb | Cua sov rau Ac3 + (30 - 50) ℃ (hypereutectoid steel) los yog Acl + (20 - 40) ℃ (eutectoid steel thiab hardness, tiv thaiv cov tiam ntawm eutectoid steel), tuav ib lub sij hawm, ces txias kom qis dua Ar1. isothermal transformation, thiab ces cua txias (cua txias) | Cov pa roj carbon monoxide nruab nrab thiab qee qhov siab alloy steel hnyav castings, forgings thiab stamping qhov chaw, thiab lwm yam. |
| 5 | Spheroidizing annealing | Carbide spherification, txo hardness, txhim kho plasticity | Cua sov rau Acl + (20 - 40) ℃ los yog Acl kom txo hardness, nce - (20 - 30) ℃, tom qab tshav kub preservation isothermal txias los yog ncaj qha qeeb txias | Tuag thiab bearing steel qhov chaw. Cov qauv steel txias extruded qhov chaw |
| 6 | Recrystallization annealing lossis intermediate annealing | Tshem tawm ntawm kev ua haujlwm hardening | Cua sov rau Ac1 - (50-150) ℃, cua txias tom qab cua sov preservation | Txias deformed steel thiab steel qhov chaw |
| 7 | Kev ntxhov siab annealing | Relief of internal stress | Cua sov rau Ac1 - (100-200) C, tom qab kev txuag hluav taws xob, cua txias lossis cua sov rau 200-300 ℃, thiab tom qab ntawd cua txias | Germanium steel qhov chaw, vuam qhov chaw, thiab forging qhov chaw |
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