Ⅰ-Cr12MoV Txias Ua Haujlwm Tuag Hlau yog dab tsi
Lub Cr12MoV txias ua hauj lwm tuag steel tsim los ntawm zhongao belongs rau qeb ntawm siab hnav-resistant micro deformation cuab tam steel, uas yog yus muaj los ntawm siab hnav tsis kam, hardenability, micro deformation, siab thermal stability, siab dabtsi yog khoov zog, thiab lwm yam khoom.Nws yog qhov thib ob nkaus xwb rau high-speed steel thiab yog cov khoom tseem ceeb rau stamping, txias taub hau, thiab lwm yam ntaub ntawv.Cr12MoV tuag steel yog carbon molybdenum ledeburite steel nrog cov ntsiab lus qis dua li Crl2 steel.Molybdenum thiab vanadium tau ntxiv los txhim kho kev ua haujlwm kub, cuam tshuam toughness thiab carbide faib ntawm cov hlau.Cr12MoV tuag steel muaj cov ntsiab lus qis dua li Cr12 tuag hlau.Qhov sib ntxiv ntawm cov ntsiab lus alloy tshiab txhim kho qhov tshwm sim ntawm qhov tsis sib xws carbide.Ntxiv mus, molybdenum thiab molybdenum tuaj yeem txo cov carbide cais thiab txhim kho hardenability.Vanadium thiab vanadium tuaj yeem txhim kho cov nplej thiab ua kom tawv nqaij, Yog li ntawd, zhongao's Cr12MoV pwm steel muaj kev ua haujlwm siab, nrog rau ntu ntu hauv qab 400mm uas tuaj yeem ua kom tiav, thiab tseem tuaj yeem tuav zoo hardness thiab hnav tsis kam ntawm 300-400 ℃.Tsis tas li ntawd, zhongao's Cr12MoV pwm hlau muaj zog zoo dua li lwm cov ntaub ntawv ntawm tib qib hauv kev ua lag luam, thiab qhov muaj peev xwm hloov pauv thaum lub sij hawm quenching yog txo qis heev.Yog li ntawd, nws lub siab hnav tsis kam thiab zoo txhua yam khoom siv ua rau Jinbaicheng's Cr12MoV pwm steel zoo dua rau kev tsim ntau yam pwm nrog cov ntu loj, cov duab nyuaj, thiab tiv taus qhov cuam tshuam loj, nrog rau ntau yam txias stamping cuab yeej hauv kev ua haujlwm hnyav, xws li xuas nrig ntaus tuag, trimming tuag, dov tuag, thiab lwm yam Steel phaj sib sib zog nqus nqus tuag, ncig pom, txheem cov cuab yeej thiab ntsuas cov cuab yeej, xov dov tuag, thiab lwm yam.
Ⅱ-Daim ntawv qhia ntawm Cr12MoV Txias Ua Haujlwm Tuag Hlau
① Cr12MoV tuaj yeem siv los ua cov duab puab ntawm convex, concave, thiab ntxig cov blocks rau xuas nrig ntaus pwm nrog cov khoom tuab> 3 hli.Nws raug pom zoo kom muaj hardness ntawm 58 ~ 62HRC thaum ua cov pwm convex thiab 60 ~ 64HRC thaum ua cov pwm pwm.
② Rau kev tsim cov punch thiab concave pwm uas yuav tsum tau hnav tsis kam, nws raug pom zoo kom muaj qhov tawv ntawm 60 ~ 62HRC thaum ua cov punch thiab 62 ~ 64HRC thaum ua cov pwm concave.
③ Rau kev tsim cov pwm-resistant concave pwm nyob rau hauv sib sib zog nqus nqus pwm, nws raug pom zoo kom muaj ib tug hardness ntawm 62 ~ 64HRC.
④ Siv los tsim cov pwm concave, concave pwm, thiab ntxig cov blocks uas yuav tsum tau hnav tsis kam thiab cov duab nyuaj hauv cov pwm dabtsi yog khoov.Nws raug pom zoo kom muaj qhov tawv ntawm 60-64HRC thaum ua cov pwm pwm, thiab 60-64HRC thaum ua cov pwm pwm.
⑤ Rau kev tsim cov khoom txias extrusion tuag thiab tuag rau txhuas qhov chaw, nws raug pom zoo kom muaj hardness ntawm 60-62HRC thaum ua cov tuag, thiab 62-64HRC thaum ua cov tuag.
⑥ Nws raug pom zoo kom siv lub hardness ntawm 62 ~ 64HRC rau lub convex thiab concave pwm siv los ua tooj liab txias extrusion pwm.
⑦ Convex thiab concave pwm siv rau steel txias extrusion pwm yog pom zoo kom muaj ib tug hardness ntawm 62 ~ 64HRC.
⑧ Lub caij nplooj ntoos hlav steel daim hlau nrog ib feem ntawm 0.65% ~ 0.80% siv los ua cov pa roj carbon muaj qhov nyuaj ntawm 37 ~ 42HRC, muab lub neej ntev txog li 150000 cycles.
⑨ Lub caij nplooj ntoos hlav steel daim hlau nrog ib feem ntawm 0.65% mus rau 0.80% siv los ua cov pa roj carbon muaj zog ntawm 37-42HRC, thiab nrog kev kho nitriding ntxiv, lawv lub neej kev pabcuam tuaj yeem ncav cuag 400000 zaug.
Ⅲ-Kev Ua Haujlwm ntawm Cr12MoV Txias Ua Haujlwm Tuag Hlau:
Specification rau softening ntawm txias extrusion pwm: Tiv thaiv thiab kub cov pwm nrog hlau filings ntawm ib tug kub ntawm 760-780 ℃ rau 10 teev, nrog rau cua sov cua sov thiab ib tug hardness ntawm 196HBW.Txias extrusion txoj kev tuaj yeem ua tiav zoo.
Specification rau qhov zoo tib yam isothermal spheroidizing annealing: 850-870 ℃ × 3-4 teev, txias hauv lub cub rau 740-760 ℃ × 4-5 teev ntawm isothermal kev kho mob, nrog cua txias hardness ≤ 241HBW, eutectic carbide qib optimal ≤ 3 kub 740-76o ℃, thiab lub sij hawm ≥ 4-5 teev.
Specification rau spheroidizing annealing: (860 ± 10) ℃ × 2-4 teev, cua sov cua sov ntawm qhov cua txias ntawm 30 ℃ / teev, (740 ± 10) ° C x 4-6 teev, maj mam txias rau 500-600 ℃ nrog rauv, cua txias tom qab tso tawm, hardness 207-255HBW.
General quenching thiab tempering specifications: quenching kub 1000-1050 ℃, roj quenching los yog quenching, hardness 260HRC, tempering kub 160-180, tempering lub sij hawm 2 teev, los yog tempering kub 325-375 ° C, tempering 2-3 zaug.
Tsawg quenching thiab qis rov qab quenching kub: 950 ℃ -1040 ℃, tempering kub nyob ib ncig ntawm 200 ℃, theem nrab tempering.
High quenching thiab siab rov qab quenching kub: 1050-1100 ℃, tempering kub nyob ib ncig ntawm 520 ℃, theem nrab tempering.Qhov thib ob txoj kev hardening siv rau siab quenching thiab siab ub no txhim kho hardness, tab sis cov nplej yuav loj hlob.
Cryogenic kev kho mob: Cr12MoV steel undergoes cryogenic kev kho mob, uas yuav precipitate heev dispersed ultrafine carbides los ntawm quenched martensite, thiab ces cov ultrafine carbides yuav hloov mus rau hauv carbides tom qab 200 ℃ low-temperature tempering.Lub martensite tsis muaj kev kho cryogenic tsuas yog ua rau me me ntawm carbide hauv qee thaj chaw hauv zos tom qab qhov kub tsis tshua muaj hluav taws kub.
zhongao txais yuav cov txheej txheem kev kho cua sov uas tsis tshua muaj kub, uas tuav lub siab hardness thiab hnav tsis kam ntawm Cr12MoV steel.Peb feem ntau siv cov txheej txheem kub kub kho cua sov, uas yog ion nitriding, roj nitrocarburizing, thiab ntsev da dej sulfur cyanide co nitriding, muaj kev cuam tshuam tseem ceeb thiab adhesion, nrog ntsev da dej sulfur cyanide co nitriding yog qhov zoo tshaj plaws.
Kev pabcuam lub neej ntawm kev kos duab tuag rau zhongao's Cr12MoV stainless hlau cov tais diav, tom qab kev kho cov roj nitrocarburization, ncav cuag ntau tshaj 30000 daim, uas yog ntau tshaj 10 npaug ntev dua li cov pwm zoo sib xws tau kho nrog cov pa quenching thiab tempering.
Post lub sij hawm: May-23-2024