Yuav ua li cas kom txo cov teeb meem nyob rau hauv cov pwm yas

1. Siv dej txias lubricating kua los ua si rau peb qhov dej txias, ntxuav thiab lubrication, kom txias thiab lubrication huv si, thiab tswj cov cua kub sib tsoo hauv qhov chaw uas pub kom tiv thaiv tau cov khoom ua haujlwm los ua thermal deformed. Txhim kho cov cua txias thaum lub sij hawm sib tsoo, xws li siv cov roj ntim cov roj sib tsoo lossis cov dej txias sab hauv. Kev txiav cov dej ua ke nkag mus rau hauv nruab nrab ntawm cov hniav sib tsoo, thiab cov kua dej yuav tuaj yeem nkag mus rau hauv qhov sib tsoo thaj tsam kom ua rau siv cov cua txias kom tiv thaiv kev kub nyhiab ntawm cov khoom ua haujlwm.

2. Kev nyuaj siab ntxhov plawv tom qab kev kho cua sov yog txo kom tsawg, vim tias kev ntxhov siab quenching thiab reticulated carbonized qauv nyob rau hauv qhov kev txiav txim ntawm kev sib tsoo force, hloov theem ntawm cov qauv no yooj yim heev ua rau cov kab nrig hauv lub chaw ua haujlwm. Rau cov qib high-precision pwm, thiaj li yuav tshem tawm cov kev ntxhov siab seem ntawm kev sib tsoo, kev kub ntxhov kev laus yuav tsum tau ua tom qab kev sib tsoo los txhim kho lub zog.

3, tshem tawm cov kev ntxhov siab yuav ua rau lub tsev ntiav 260 ~ 315 ° C rau 1.5min, thiab tom qab txias 30 ° C roj, yog li cov tawv nqaij yuav raug txo los ntawm 1HRC, residual stress yog txo los ntawm 40% ~ 65% .

4. Rau qhov kev txiav txim siab ntawm kev txiav txim siab tuaj pwm nrog lub siab ntev txaus ntawm tsawg tshaj li 0,01 mm, yuav tsum tau them nyiaj rau kev kub nyhiab, thiab qhov kub sib sov tas li yuav tsum tau ua. Nws tuaj yeem pom los ntawm qhov muab xam rau ib daim hlau uas ntev ntev li ntawm 300 mm, cov khoom muaj hloov ntawm 10.8 μm ntawm qhov kub qhov txawv ntawm 3 ° C (10.8 = 1.2 × 3 × 3, thiab cov deformation nqi ib 100 hli yog 1.2 μm / ° C), thiab txhua txoj kev ua tiav yuav tsum raug xam tag nrho. Tej yam zoo li no.

5, siv cov khoom sib tsoo los ntawm kev sib tsoo los txhim kho pwm txhim khu kev lag luam thiab qhov zoo ntawm ntu. Kev sib tsoo ntawm cov yeeb nkab yuav ua rau cov hlau tsis sib txuas ntawm cov hlau: Cov khoom sib tsoo tsis zoo, me me, qhov sib tsoo kub yog me, thiab tsis muaj kev sib tsoo burrs, tawg, hlawv, thiab lwm yam. zoo tshaj Ra0. . 16μm; Tsis tas li ntawd, kev sib tsoo ntawm cov hniav sib tsoo me me, xws li sib tsoo cemented carbide, hnav cov silicon carbide sib tsoo log yog li ntawm 400% mus rau 600% ntawm qhov nyhav ntawm cov tawv sib sib zog nqus. Thaum kev sib tsoo nrog cov khoom sib tsoo, cov kev sib tsoo ntawm cov hniav sib tsoo Cov nyiaj tsuas yog 50% mus rau 100% ntawm cov nyiaj cemented carbide.