Yam dab tsi txiav txim siab lub zog thiab hardness ntawm corrosion-resistant alloy steel
1. Tshuaj muaj pes tsawg leeg:
Cov ntsiab lus carbon: Cov pa roj carbon yog ib qho tseem ceeb uas cuam tshuam rau lub zog thiab hardness ntawm alloy hlau. Raws li cov ntsiab lus carbon nce, tus naj npawb ntawm carbides hauv cov hlau nce. Cov carbides tuaj yeem cuam tshuam kev txav mus los thiab nce lub zog thiab hardness ntawm alloy hlau.
Alloy khoom:
Chromium (Cr): tuaj yeem txhim kho hardness, lub zog thiab corrosion kuj ntawm alloy hlau. Chromium tuaj yeem tsim cov yeeb yaj kiab oxide tuab los tiv thaiv cov pa oxygen thiab lwm yam xov xwm corrosive los ntawm kev corroding cov hlau ntxiv. Nyob rau tib lub sij hawm, nws ua rau kom cov hlau hardenability, tso cai rau cov hlau kom tau ntau zog thiab hardness tom qab kev kho cua sov.
Nickel (Ni): tuaj yeem txhim kho lub zog, toughness thiab corrosion kuj ntawm alloy steel. Nickel tuaj yeem nthuav dav austenite theem cheeb tsam, tso cai rau cov hlau alloy kom muaj zog zoo ntawm qhov kub thiab txias, thiab pab txhim kho hardenability ntawm alloy hlau, yog li ua kom nws lub zog.
Molybdenum (Mo): tuaj yeem txhim kho lub zog, kub tsis kam thiab corrosion tsis kam ntawm hlau alloy. Molybdenum tuaj yeem kho cov nplej thiab txhim kho kev ruaj ntseg ntawm cov hlau, tso cai rau cov hlau hlau kom muaj zog thiab tawv ntawm qhov kub thiab txias.
Manganese (Mn): pab txhim kho lub zog thiab toughness ntawm alloy hlau. Manganese tuaj yeem tsim manganese sulfide nrog leej faj, txo cov teebmeem ntawm cov sulfur thaum txhim kho cov tawv tawv ntawm cov hlau, tab sis cov ntsiab lus ntawm manganese ntau dhau tuaj yeem ua rau lub zog ntawm cov hlau tsis muaj zog.
Vanadium (V): Nws tuaj yeem kho cov nplej thiab txhim kho lub zog, tawv thiab kev cuam tshuam ntawm cov hlau alloy. Cov carbides tsim los ntawm vanadium nyob rau hauv cov hlau muaj siab hardness thiab tuaj yeem txhim kho qhov hnav tsis kam thiab puas ua haujlwm ntawm cov hlau.
2. Txheej Txheem:
Grain loj: Cov nplej zoo dua, qhov siab dua lub zog thiab hardness ntawm cov hlau alloy. Qhov no yog vim hais tias lub finer cov nplej, ntau npaum li cas ciam teb muaj nyob rau hauv cov hlau alloy, uas yuav cuam tshuam lub zog ntawm dislocations thiab ua rau nws nyuaj rau deform cov khoom.
Theem muaj pes tsawg leeg: Corrosion-resistant alloy steels tej zaum yuav muaj ntau hom qauv, xws li austenite, ferrite, martensite, thiab lwm yam. Lub zog thiab hardness ntawm ntau theem sib txawv heev. Los ntawm kev kho cov alloy muaj pes tsawg leeg thiab cov txheej txheem kho cua sov, qhov kev faib ua feem thiab kev faib tawm ntawm txhua theem ntawm cov hlau alloy tuaj yeem tswj tau kom tau txais lub zog thiab hardness.
Thib ob particles: theem ob hais xws li carbides thiab nitrides uas tej zaum yuav muaj nyob rau hauv steel. Qhov loj, zoo, thiab kev faib tawm ntawm cov khoom no yuav cuam tshuam rau lub zog thiab hardness ntawm cov hlau alloy. Ob theem hais tuaj yeem cuam tshuam kev txav mus los thiab nce lub zog ntawm cov khoom; Yog hais tias theem ob cov khoom tsis sib npaug los yog loj heev, lub toughness ntawm cov khoom yuav txo.
3. Kev kho cua sov txheej txheem:
quenching: Cua sov alloy steel rau ib qho kub thiab txias nws sai sai tuaj yeem hloov cov qauv ntawm cov hlau mus rau theem siab zog xws li martensite, yog li txhim kho lub zog thiab hardness ntawm alloy hlau. Txawm li cas los xij, kev ntxhov siab sab hauv tuaj yeem tsim tawm thaum lub sijhawm quenching, ua rau lub brittleness ntawm cov hlau alloy nce, yog li tempering feem ntau yuav tsum tau.
Tempering: Tempering lub quenched alloy steel ntawm qhov kub thiab txias tuaj yeem tshem tawm cov kev ntxhov siab sab hauv thiab txhim kho toughness thaum tuav lub zog thiab hardness. Kev xaiv ntawm tempering kub thiab lub sij hawm muaj kev cuam tshuam tseem ceeb rau cov khoom ntawm cov hlau alloy. Cov txheej txheem tempering sib txawv tuaj yeem tau txais kev sib txawv ntawm lub zog thiab toughness.
Annealing: Annealing tuaj yeem ua homogenize cov qauv ntawm cov hlau alloy, txo hardness, txhim kho toughness, thiab pab txhawb kev ua tom qab thiab tsim. Rau qee qhov corrosion-resistant alloy steels nrog ntau dua toughness, annealing yog ib qho tseem ceeb pretreatment txheej txheem.
4. Kev siv tshuab:
Kev ua haujlwm txias: Cov txheej txheem ua haujlwm txias xws li txias dov thiab kos duab txias tuaj yeem deform thiab kho cov nplej ntawm cov hlau alloy, yog li txhim kho nws lub zog thiab hardness. Txawm li cas los xij, kev ua haujlwm txias yuav txo cov plasticity ntawm cov hlau alloy, yog li cov degree ntawm deformation thaum lub sij hawm ua hauj lwm txias yuav tsum tau tswj.
Kub ua hauj lwm: Thaum lub sij hawm kub ua hauj lwm, cov qauv ntawm cov hlau alloy yuav undergo dynamic recrystallization thiab lwm yam kev hloov, cuam tshuam nws lub zog thiab hardness. Qhov tsim nyog kub ua haujlwm tshuab tuaj yeem ua rau cov hlau alloy tau txais cov qauv zoo thiab kev ua haujlwm zoo. Piv txwv li, forging tuaj yeem txhim kho cov qauv sab hauv ntawm cov hlau alloy thiab txhim kho nws lub zog thiab toughness.
Lub zog thiab hardness ntawm corrosion-resistant alloy steel nyob ntawm cov saum toj no yam. Yog tias koj xav paub ntau ntxiv txog daim ntawv thov kev lag luam thiab kev siv thev naus laus zis ntawm corrosion-resistant alloy steel, koj tuaj yeem tiv tauj Jiangsu Tisco Meta l rau kev sab laj ntxiv. Cov kws tshaj lij yuav muab kev pabcuam 7 * 24 rau koj.