Hnav tsis kam ntawm cov hlau sib txawv tom qab induction hardening

Hlau tooj	Chemical muaj pes tsawg leeg (feem ntau, %)			Nruab nrab hardness HRC	Hnav concave ntim /10mm 3
Hlau tooj	C	Mn	Cr	Nruab nrab hardness HRC	Hnav concave ntim /10mm 3
45	0.50	0.58	0. 18	62	371
50mn ua	0.53	0. 70	0. 10	63	357
45 Ib	0.42	0.55	1. 10	60	329
T7	0.72	0.22	0. 15	65	310

Raws li cov ntaub ntawv ntawm kev hnav thiab hnav tsis kam ntawm induction hardened qhov chaw, cov lus xaus hauv qab no tuaj yeem kos:

1) Induction cua sov yog siv los tua qhov chaw ntawm lub workpiece, uas zoo heev txhim kho cov hnav tsis kam ntawm cov thawj unquenched workpiece.

2) Piv nrog rau cov khoom siv sib xyaw ua ke zoo tib yam, qhov induction hardened qhov chaw tau txhim kho hnav tsis kam vim qhov siab tawv thiab tsis yog decarburization.

3) Qhov hnav tsis kam ntawm induction hardened qhov chaw ua los ntawm cov pa roj carbon nruab nrab yog qis dua li ntawm cov carburized hardened qhov chaw vim qhov qis hardness thiab cov ntsiab lus carbon.