Gearscia siab rau lawv tus kheej qhov ntev thiab cov khoom siv zog los tiv thaiv cov khoom siv sab nraud, uas yuav tsum muaj cov khoom siv kom muaj zog, tawv thiab hnav tsis kam; vim lub complex duab ntawm lub zog, lubiavxav tau high precision, thiab cov ntaub ntawv kuj xav tau zoo manufacturability. Cov khoom siv feem ntau yog forged steel, cam khwb cia hlau, thiab cam khwb cia hlau.
1. Forged steel Raws li lub hardness ntawm cov hniav nto, nws muab faib ua ob pawg:
Thaum HB ＜350, nws yog hu ua mos hniav nto
Thaum HB ＞350, nws yog hu ua tawv hniav nto
1.1. Cov hniav hardness HB 350
Txheej txheem: forging dawb paug → normalizing - ntxhib tig → quenching thiab tempering, xov
Cov khoom siv feem ntau; 45 #, 35SiMn, 40Cr, 40CrNi, 40MnB
Nta: Nws muaj kev ua tau zoo tag nrho, cov hniav nto muaj lub zog siab thiab hardness, thiab cov hniav tseem muaj zog zoo. Tom qab kev kho cua sov, qhov precision ntawmGearstxiav tuaj yeem ncav cuag 8 qib. Nws yog ib qho yooj yim rau kev tsim, kev lag luam, thiab muaj cov khoom lag luam siab. Lub precision tsis siab.
1.2 Cov hniav hardness HB ＞ 350
1.2.1 Thaum siv nruab nrab carbon steel:
Txheej txheem: Forging dawb paug → normalization → ntxhib txiav → quenching thiab tempering → nplua txiav → siab thiab nruab nrab zaus quenching → tsis tshua muaj kub tempering → honing los yog abrasive khiav-hauv, hluav taws xob spark khiav-hauv.
Cov khoom siv feem ntau:45, 40Cr, 40CrNi
Nta: Cov hniav hardness yog siab HRC = 48-55, lub zog tiv tauj yog siab, thiab hnav tsis kam yog qhov zoo. Cov hniav tseem muaj zog tom qab quenching thiab tempering, muaj kev cuam tshuam zoo thiab muaj peev xwm ua haujlwm siab. Qhov tseeb raug txo los ntawm ib nrab, mus txog qib 7 qhov tseeb. Haum rau ntau lawm, xws li nruab nrab-ceev thiab nruab nrab-load kis tau tus mob gears rau tsheb, tshuab cuab yeej, thiab lwm yam.
1.2.2 Thaum siv cov pa roj carbon tsawg: Forging dawb paug → normalization → ntxhib txiav → quenching thiab tempering → nplua txiav → carburizing thiab quenching → kub tempering → hniav sib tsoo. Mus txog 6 thiab 7 qib.
Cov ntaub ntawv siv tau zoo; 20Cr, 20CrMnTi, 20MnB, 20CrMnTo Nta: Cov hniav tawv tawv thiab muaj peev xwm muaj peev xwm. Cov tub ntxhais muaj zoo toughness thiab cuam tshuam tsis kam. Nws yog tsim rau high-speed, hnyav-load, overload kis tau tus mob los yog lub sij hawm nrog compact qauv yuav tsum, raws li lub ntsiab kis tau tus mob gear ntawm locomotives thiab aviation zog.
2. Cam khwb cia hlau:
Thaum lubiavtxoj kab uas hla d> 400mm, cov qauv yog nyuaj, thiab forging yog nyuaj, cam khwb cia steel khoom ZG45.ZG55 yuav siv tau rau normalizing. Normalization, quenching thiab tempering.
3. Cam khwb cia hlau:
Muaj zog tiv thaiv adhesion thiab pitting corrosion, tab sis tsis zoo rau kev cuam tshuam thiab puas. Nws yog qhov tsim nyog rau kev ua haujlwm ruaj khov, tsis muaj zog, qis ceev lossis loj loj thiab cov duab nyuaj. Nws tuaj yeem ua haujlwm nyob rau hauv cov roj tsis txaus thiab tsim nyog rau kev qhib kev sib kis.
4. Cov khoom siv hlau:
Npuag, ntoo, yas, nylon, haum rau kev kub ceev thiab lub teeb load.
Thaum xaiv cov khoom siv, kev txiav txim siab yuav tsum tau muab rau qhov tseeb tias kev ua haujlwm ntawm cov iav sib txawv, thiab cov ntaub ntawv tsis ua haujlwm ntawm cov iav hniav sib txawv, uas yog lub hauv paus rau kev txiav txim siab lub zog ntawm cov qauv ntawm cov iav thiab xaiv cov khoom thiab kub. chaw.
1. Thaum lub iav cov hniav yog yooj yim tawg nyob rau hauv kev cuam tshuam load, cov ntaub ntawv uas muaj toughness zoo dua yuav tsum tau xaiv, thiab cov uas tsis muaj carbon steel yuav raug xaiv rau carburizing thiab quenching.
2. Rau kev sib kis ceev ceev, cov hniav nto yog qhov yooj yim rau pitting, yog li cov ntaub ntawv uas zoo dua cov hniav hardness yuav tsum tau xaiv, thiab nruab nrab carbon steel nto hardening yuav siv tau.
3. Rau qhov qis-ceev thiab nruab nrab-load, thaum iav hniav tawg, pitting, thiab abrasion tuaj yeem tshwm sim, cov khoom siv nrog lub zog zoo, cov hniav tawv tawv thiab lwm yam khoom siv txhua yam yuav tsum raug xaiv, thiab nruab nrab-carbon steel quenched thiab tempered tau. raug xaiv.
4. Siv zog kom muaj ntau yam khoom me me, yooj yim los tswj, thiab xav txog cov peev txheej thiab cov khoom siv. 5. Thaum tus qauv loj yog compact thiab hnav tsis kam yog siab, alloy steel yuav tsum tau siv. 6. Cov khoom siv thiab thev naus laus zis ntawm chav tsim khoom.
Lub sij hawm xa tuaj: Mar-11-2022