Yuav ua li cas kom ua rau lub hardness ntawm DC06
DC06, raws li ultra - Cov hlau tsis muaj zog tob ntxiv (C)) Txhawm rau nce nws lub hardness, txias ua haujlwm lossis kev hloov kho saum npoo. Lub ntsiab cai tseem ceeb yog kom nce cov khoom siv sab hauv kev sib cais lossis hloov cov npoo micrubtructure los txhim kho hardness. Hauv qab no yog cov hau kev tshwj xeeb thiab cov yam ntxwv:
1. Txias ua haujlwm hnyav (feem ntau cov qauv)
Cov txheej txheem deformation txias xws li txias dhuav, ncab, ua kom muaj zog ntxiv rau hauv lub zog tab sis ib qho kev txo qis hauv cov yas).
Cov Txheej Txheem Tseem Ceeb:
Cold Dov Hardening
Nce qhov kev txo qhov sib txawv hauv cov txheej txheem txias txias (DC06 tus thawj txias txias rolling txo qis) Cov nyhuv: rau txhua 10% nce nqi, Hardness nce los ntawm kwv yees li 5-10 teev; ntawm ib tus nqi txo qis, hardness mus txog 85-95 hrb).
Lus Cim: Thaum cov nyiaj txo tau ntau dua 30%, cov khoom siv cov yas txo qis dua (elongation poob los ntawm 40%), uas tuaj yeem cuam tshuam cov txheej txheem tom ntej.
Stamping / Khoov Hardening
Thaum lub sijhawm ua kom tiav cov txheej txheem, hauv zos hauv zos (xws li daim duab tsis sib xws thiab ua kom tsis muaj dab tsi cuam tshuam nrog cov chaw tshwj xeeb, ua tiav qhov kev ua kom tiav.
Cov ntawv thov: Qhov yuav tsum tau tsuas yog ua kom muaj kev nyuaj siab hauv ib cheeb tsam (xws li cov npoo thiab thaj chaw li qub). Qhov ua tau zoo ntxiv nyob ntawm tus nqi ntawm deformation (ntau dua deformation tau tshwm sim hauv kev tawv ntau dua)} npoo carburizing / nitriving (nce kev tawv ncauj (nce siab)
Cov txheej txheem no siv tshuaj lom neeg kub kho kom sov rau infiltrate carbon lossis nitrogen rau saum npoo ntawm dc06, thaum tus tseem ceeb tuav nws lub hardness qis thiab tawv). Hom qauv no yog qhov tsim nyog rau cov ntawv thov uas xav tau ob qho tib si saum npoo hnav tsis kam thiab tseem ceeb ntawm kev cuam tshuam.
Cov Txheej Txheem Tseem Ceeb:
Kev Kho Mob Carburizing
Txheej Txheem: DC06 tau muab tso rau hauv cov carbon -}} atoms rau txau txheej txheej saum npoo av (txheej txheej thickness yog 0.1-0.5mm). Qhov no yog ua raws los ntawm quenching thiab tsawg-kub tempering.
Qhov tshwm sim: Lub Hardness Tightness tuaj yeem ncav cuag 55 hrc (kwv yees li 530-700 hv), thaum tus tseem ceeb khaws cia ntawm cov nplaim teeb tsis kam thiab tseem ceeb.
Cov kev txwv: DC06 muaj cov ntsiab lus muaj peev xwm tsawg kawg nkaus, ua rau muaj kev qeeb carburizing. Tsis tas li ntawd, kev sib txawv ntawm cov txheej carburized yuav tsum tau tswj kom tsis txhob embrittlement hauv thaj chaw hloov pauv ntawm qhov chaw thiab cov tub ntxhais. Nitriding Kho
Txheej txheem: Ntawm 500-550 degree, nitrogen atoms tsim los ntawm kev rhuav tshem ntawm ammonia yog infiltrated rau saum npoo, sib sau Nitrides (xws li FE4N). Tsis tas yuav tsum tau quenching.
Qhov tshwm sim: nto hardness ntawm 400-600 hv (kwv yees li 38-55 teev (0.01-0-mm), ua rau nws tsis txaus ntseeg rau qhov chaw ntsuas.
Hom tau txais txiaj ntsig: Qhov kev kho kom kub qis tsis ua kev sib zog ntawm DC06 substrate, ua kom haum rau qhov yuav tsum tau ua kom tawv me me tom qab kev sib sau.
III. Lwm txoj kev pab pawg
Kev Kho Mob Laus
DC06 muaj cov kab ntawm txhuas (muaj ntau dua lossis sib npaug rau 0.015%). Tsawg - kub}} kub kev laus (120-200 degree, 1-3 teev) tuaj yeem txhawb cov dej nag los ntawm txhuas nitrides (aln), ua rau muaj hnub nyoog tawv.
Qhov tshwm sim: hardness nce ntawm kwv yees li ntawm 3 - 5 hrb (txwv). Txoj kev no feem ntau siv rau kev ua tau zoo-ua kom tsis txhob muaj kev txo qis hauv cov yas. Txheej zuj zus zuj zus
Electropated nyuaj chromium (hardness 800 - 1000 hv) lossis npib hv) lossis npib hv) lossis npib hv) lossis npib hv) los ntawm cov kev coj ua kom dhau los ntawm cov txheej txheem sib luag ntawm cov txheej.
Nta: Hom no tsis hloov pauv cov khoom ntawm cov khoom siv thiab yog tsim nyog rau cov ntawv thov hardness tab sis tsis tso cai rau kev ploj ntawm substrate plastonity (xws li cov khoom sib xyaw ua kom zoo nkauj thiab dej zawv zawg).
IV. Txoj kev pom cov lus pom zoo
Rau txhua qhov hardening tsis muaj kev sib txawv ntawm cov yas: Thib ob lub zog dov yog cov txheej txheem (cov nqi yooj yim, tus nqi qis). Tswj cov kev txo qhov sib npaug rau 10-20% ua tiav qhov sib npaug ntawm kev tawv thiab cov yas.
Rau cov npoo sab nraud tiv thaiv tsuas yog thaum tswj hwm cov tub ntxhais lub zog: carburizing yog tsim nyog rau tuab txheej nrog qhov chaw ua haujlwm nrog kev tsis txaus siab me me).
Rau cov khoom ua kom tawv nqaij tawv tom qab kev sib sau: Xaiv cov xovxwm ua kom tawv tawv lossis kho kom tsis txhob muaj kev cuam tshuam nrog kev ua kom muaj kev cuam tshuam tag nrho). Nco tseg: DC06 yog Ameslikas tsim rau qhov siab sib txawv ntawm kev sib nqus. Ntau dhau hardening yuav poob nws cov ntsiab lus zoo. Hauv cov ntawv thov tiag tiag, cov txheej txheem tsis yuav tsum muaj sib npaug raws li "Hardness yuav tsum + Yuav tsum tau ua" cov cai muaj npe ".