Peb Hlis 28, 2024
42crmo4+QT khoom yog dab tsi?
42CrMo4+QT yog cov khoom siv hluav taws xob kho cua sov uas muaj zog thiab tawv. Nws yog cov khoom siv hluav taws xob thoob ntiaj teb uas feem ntau siv los tsim cov khoom hnyav xws li lub zog muaj zog bolts, lub zog, ncej, thiab cov pas nrig txuas. Cov hauv qab no yog cov ncauj lus kom ntxaws txog 42CrMo4+QT cov ntaub ntawv:
42CrMo4 yog chromium thiab molybdenum alloy hlau. Cov tshuaj muaj pes tsawg leeg ntawm 42CrMo4 cov khoom muaj kwv yees li 0.38% rau 0.45% carbon, kwv yees li 0.6{{10}}% rau {{14 }}.90% silicon, kwv yees li {{20}}}.60% rau 0.90% manganese, kwv yees li 0.90% mus rau 1.20% chromium, thiab kwv yees li 0.15% mus rau 0.30% molybdenum. Tsis tas li ntawd, nws kuj muaj me me ntawm phosphorus, sulfur, thiab lwm yam kab kawm. Lub xub ntiag ntawm cov khoom no ua rau cov khoom siv 42CrMo4 nrog cov khoom siv zoo thiab cov yam ntxwv kho cua sov.
QT txhais tau hais tias quenching thiab tempering kub kho. Afrer qt kev kho cua sov, cov qauv thiab cov khoom ntawm 42CrMo4 steel tau txhim kho. Kev tsim cov txheej txheem ntawm qt kev kho cua sov feem ntau suav nrog ob kauj ruam. Ua ntej, cov khoom yuav raug quenched ntawm qhov kub thiab txias kom ceev ceev thiab nce nws hardness thiab lub zog. Tom qab ntawd, cov khoom yuav raug tempering kho kom rov ua tau ib co hardness ntawm qhov tsim nyog kub, los txhim kho lub toughness thiab plasticity ntawm cov khoom. Cov txheej txheem kev sib xyaw ua ke no muab 42CrMo4+QT steel qhov zoo ntawm hardness thiab toughness, ua rau nws tsim nyog rau kev tsim khoom nyob rau hauv siab load thiab siab ua hauj lwm tej yam kev mob.
42CrMo4+QT cov khoom muaj cov yam ntxwv hauv qab no thiab kev siv tau zoo:
1. Lub zog siab thiab tawv tawv: Tom qab kev kho cua sov, 42CrMo4+QT muaj lub zog muaj zog thiab tensile lub zog, ua rau nws tsim nyog rau cov ntawv thov uas yuav tsum tau tiv taus cov loads siab thiab cuam tshuam.
2. Zoo toughness: Tempering kev kho mob thaum tshav kub kub yuav ua rau kom lub toughness thiab plasticity ntawm 42CrMo4+QT, ua rau nws muaj kev puas siab puas ntsws puas.
3. Kev ua haujlwm zoo: 42CrMo4+QT cov khoom tseem muaj cov khoom siv zoo tom qab kev kho cua sov thiab tuaj yeem siv rau kev ua haujlwm xws li txiav, drilling, thiab milling.
4. Siv dav: 42CrMo4+QT cov khoom siv dav siv hauv kev tsim cov khoom siv siab xws li cov khoom siv tshuab, cav qhov chaw, lub zog, ncej, txuas rods, bolts, thiab lwm yam, tshwj xeeb tshaj yog tsim rau kev ua haujlwm uas yuav tsum tau ua. siab zog thiab hardness.
Hauv cov ntsiab lus, 42CrMo4+QT yog cov khoom siv hlau tsis tshua muaj hlau nrog lub zog siab, hardness, thiab toughness, uas yog tsim rau kev tsim ntau yam khoom nyob rau hauv siab load thiab siab ntxhov siab tom qab kev kho cua sov.
