Qhov txawv ntawm high quenching thiab nruab nrab zaus quenching

1. Dab tsi yog induction hardening

Feem ntau siv hluav taws xob tua hluav taws yog siv rau kev tua hluav taws ntawm cov khoom siv hlau. Nws yog txheej txheem kev kho cua sov hlau uas tsim muaj qee qhov induction tam sim no nyob rau saum npoo ntawm lub cev ua haujlwm, ua kom sov sai sai ntawm ib feem, thiab tom qab ntawd tua nws sai.

Qhov thib ob, dab tsi yog qhov nruab nrab zaus quenching

Qhov nruab nrab zaus quenching yog txhawm rau muab cov hlau tso rau hauv induction kauj, cov induction kauj tau txhawb kom tsim hluav taws xob hloov pauv, thiab qhov hloov pauv tam sim no yog ua los ntawm cov hlau. Vim yog cov tawv nqaij cuam tshuam, tam sim no feem ntau yog tsom rau ntawm cov hlau ib feem, yog li qhov kub qhov kub siab tshaj yog cov dej tsuag txias lossis lwm yam txias tam sim hauv qab cov kauj induction. Txij li cua sov thiab cua txias feem ntau yog tsom rau ntawm qhov chaw, kev hloov kho saum npoo yog pom tseeb, thaum kev hloov kho sab hauv tsis yog, thiab nws tuaj yeem muaj qhov tshwj xeeb kho cua sov.

Peb, qhov sib txawv ntawm kev siv hluav taws xob ntau zaus thiab kev siv hluav taws xob nruab nrab zaus

Kev siv hluav taws xob ntau zaus thiab kev siv hluav taws xob nruab nrab nruab nrab yog ob qho tib si txheej txheem kho cua sov saum npoo av. Lawv ob leeg siv qhov ntau zaus (lossis nruab nrab-zaus, lub zog-zaus) induction tam sim no kom sai sai rau qhov kub ntawm cov hlau thiab tom qab ntawd txias nws tam sim ntawd.

Lub hauv paus ntsiab lus ua haujlwm ntawm kev ua kom muaj zog ntau yam zoo ib yam li ntawm qhov nruab nrab zaus ua kom tawv tawv, uas yog lub hauv paus ntsiab lus ntawm induction cua sov: uas yog, cov khoom ua haujlwm tau muab tso rau hauv qhov inductor, uas feem ntau yog hollow tooj liab raj nrog nruab nrab zaus lossis high-zaus hloov tam sim no (1000-300000Hz lossis siab dua). Qhov sib nqus sib nqus sib hloov ua kom muaj qhov hloov pauv tam sim no ntawm tib zaus hauv cov haujlwm. Kev faib tawm ntawm qhov ua rau tam sim no ntawm cov khoom ua haujlwm tsis sib xws. Nws muaj zog nyob rau saum npoo tab sis tsis muaj zog sab hauv. Nws yog ze rau 0 mus rau qhov tseem ceeb. Siv cov tawv nqaij no, Cov nplaim ntawm cov khoom ua haujlwm tuaj yeem ua kom sov sai, thiab qhov kub saum npoo yuav nce mus rau 800-1000 ℃ hauv ob peb feeb, thaum qhov kub ntawm cov tub ntxhais yuav nce me ntsis

Txawm li cas los xij, thaum lub sijhawm ua cov txheej txheem cua sov, kev faib tawm ntawm qhov ua rau tam sim no hauv cov khoom ua haujlwm tsis zoo ib yam, thiab cov cua sov ua los ntawm kev sib txawv tam sim no kuj sib txawv:

1. High-zaus quenching

Tam sim no zaus yog 100 ～ 500 kHz

Ntiav ntiav txheej (1.5 ~ 2 hli)

Siab hardness

Lub workpiece tsis yooj yim rau oxidize

Me deformation

Zoo quenching zoo

siab ntau lawm

Haum rau ntu uas ua haujlwm nyob rau hauv kev sib txhuam, xws li feem ntau me me zog thiab shafts (cov ntaub ntawv siv yog 45# hlau, 40Cr)

2. Nruab nrab zaus quenching

Tam sim no zaus yog 500 ～ 10000 Hz

Txheej tawv tawv tawv (3 ~ 5mm)

Haum rau ntu uas raug rau lub zog thiab lub zog hnyav, xws li crankshafts, lub zog loj, sib tsoo tshuab ntxaiv, thiab lwm yam (Cov khoom siv yog 45 steel, 40Cr, 9Mn2V thiab ductile

Hauv ntej, qhov sib txawv loj tshaj ntawm kev siv hluav taws xob ntau zaus thiab nruab nrab zaus quenching yog qhov sib txawv hauv cov cua sov tuab. Kev siv ntau zaus tuaj yeem ua rau tawv tawv hauv lub sijhawm luv. Cov qauv siv lead ua zoo heev thiab cov txheej txheem deformation me me. Qhov nruab nrab ntawm qhov nruab nrab qhov kev nyuab siab me dua li qhov ua tau siab. .