Cov iavvam khom lawv tus kheej qhov ntev thiab cov khoom siv zog kom tiv taus cov khoom sab nraud, uas xav tau cov ntaub ntawv kom muaj lub zog siab, tawv thiab hnav tsis kam; vim yog cov duab nyuaj ntawm cov iav, lubcov iavxav tau kev ua haujlwm raug siab, thiab cov ntaub ntawv kuj xav tau kev tsim khoom zoo. Cov ntaub ntawv siv feem ntau yog cov hlau forged, hlau cam khwb cia, thiab hlau cam khwb cia.
1. Cov hlau forged Raws li qhov nyuaj ntawm cov hniav nto, nws muab faib ua ob pawg:
Thaum HB <350, nws hu ua qhov chaw hniav mos
Thaum HB > 350, nws hu ua qhov chaw hniav tawv
1.1. Qhov tawv ntawm cov hniav HB <350
Txheej Txheem: forging blank → normalizing - rough turning → quenching thiab tempering, finishing
Cov ntaub ntawv siv feem ntau; 45 #, 35SiMn, 40Cr, 40CrNi, 40MnB
Nta: Nws muaj kev ua tau zoo tag nrho, qhov chaw hniav muaj zog thiab tawv, thiab lub hauv paus hniav muaj zog zoo. Tom qab kev kho cua sov, qhov tseeb ntawmCov iavKev txiav tuaj yeem ncav cuag 8 qib. Nws yooj yim rau kev tsim khoom, pheej yig, thiab muaj kev tsim khoom siab. Qhov kev ua raug tsis siab.
1.2 Qhov tawv ntawm cov hniav HB > 350
1.2.1 Thaum siv cov hlau carbon nruab nrab:
Txheej Txheem: Forging blank → normalization → txiav ntxhib → quenching thiab tempering → txiav zoo → siab thiab nruab nrab zaus quenching → qis kub tempering → honing lossis abrasive khiav-hauv, hluav taws xob hluav taws xob khiav-hauv.
Cov ntaub ntawv siv feem ntau:45, 40Cr, 40CrNi
Cov yam ntxwv: Qhov tawv ntawm cov hniav yog siab HRC = 48-55, lub zog sib cuag yog siab, thiab kev tiv thaiv kev hnav yog qhov zoo. Lub plawv hniav tseem muaj zog tom qab quenching thiab tempering, muaj kev tiv thaiv kev cuam tshuam zoo thiab muaj peev xwm thauj khoom siab. Qhov tseeb raug txo ib nrab, txog qib 7 qhov tseeb. Haum rau kev tsim khoom loj, xws li cov iav kis ceev nruab nrab thiab nruab nrab rau tsheb, cov cuab yeej siv tshuab, thiab lwm yam.
1.2.2 Thaum siv cov hlau carbon tsawg: Forging blank → normalization → txiav ntxhib → quenching thiab tempering → txiav zoo → carburizing thiab quenching → tempering kub tsawg → sib tsoo hniav. Txog li 6 thiab 7 theem.
Cov ntaub ntawv siv feem ntau; 20Cr, 20CrMnTi, 20MnB, 20CrMnTo Nta: Qhov tawv ntawm cov hniav thiab lub peev xwm dais tau zoo. Lub hauv paus muaj qhov tawv zoo thiab tiv taus kev cuam tshuam. Nws yog qhov tsim nyog rau kev sib kis ceev ceev, hnyav-load, overload lossis cov xwm txheej nrog cov qauv me me, ua lub iav kis tseem ceeb ntawm cov tsheb ciav hlau thiab cov iav dav hlau.
2. Cov hlau cam khwb cia:
Thaum lubiavTxoj kab uas hla d> 400 hli, cov qauv nyuaj, thiab kev forging nyuaj, cov khoom siv hlau cam khwb cia ZG45.ZG55 tuaj yeem siv rau kev ua kom zoo li qub. Kev ua kom zoo li qub, kev quenching thiab tempering.
3. Hlau cam khwb cia:
Muaj zog tiv taus kev nplaum thiab kev xeb ntawm qhov pitting, tab sis tsis zoo rau kev cuam tshuam thiab kev puas tsuaj. Nws tsim nyog rau kev ua haujlwm ruaj khov, lub zog qis, kev ceev qis lossis qhov loj thiab cov duab nyuaj. Nws tuaj yeem ua haujlwm hauv cov xwm txheej tsis muaj roj thiab tsim nyog rau kev sib kis qhib.
4. Cov khoom siv hlau:
Npuag, ntoo, yas, nylon, tsim nyog rau kev kub ceev thiab lub teeb thauj khoom.
Thaum xaiv cov ntaub ntawv, yuav tsum xav txog qhov tseeb tias cov xwm txheej ua haujlwm ntawm cov iav sib txawv, thiab cov qauv tsis ua haujlwm ntawm cov hniav iav sib txawv, uas yog lub hauv paus rau kev txiav txim siab cov qauv xam lub zog ntawm cov iav thiab kev xaiv cov ntaub ntawv thiab cov chaw kub.
1. Thaum cov hniav iav yooj yim tawg thaum muaj kev cuam tshuam, cov ntaub ntawv uas muaj zog dua yuav tsum tau xaiv, thiab cov hlau carbon qis tuaj yeem xaiv rau kev ua kom kub hnyiab thiab quenching.
2. Rau kev sib kis ceev ceev, qhov chaw ntawm cov hniav yuav yooj yim rau kev tawg, yog li cov ntaub ntawv uas muaj qhov tawv ntawm cov hniav zoo dua yuav tsum tau xaiv, thiab cov hlau carbon nruab nrab tuaj yeem siv tau.
3. Rau qhov ceev qis thiab nruab nrab-load, thaum cov hniav iav tawg, pitting, thiab abrasion tuaj yeem tshwm sim, cov ntaub ntawv nrog lub zog zoo, qhov nyuaj ntawm cov hniav thiab lwm yam khoom siv kho tshuab yuav tsum tau xaiv, thiab cov hlau nruab nrab-carbon quenched thiab tempered tuaj yeem xaiv tau.
4. Siv zog kom muaj ntau yam khoom siv me me, yooj yim tswj, thiab xav txog cov peev txheej thiab kev muab khoom.
5. Thaum lub qauv loj me me thiab qhov hnav tsis kam siab, yuav tsum siv cov hlau alloy.
6. Cov khoom siv thiab thev naus laus zis ntawm chav tsim khoom.
Lub sijhawm tshaj tawm: Lub Peb Hlis-11-2022