Qhov sib txawv tseem ceeb ntawm cov ntaub ntawv tawv tawv thiab cov nplaim tawv tawv yog cov ntaub ntawv tawv tawv tuaj yeem ua rau cov tawv tawv ntawm cov hlau los ntawm infusing cov ntsiab lus rau saum npoo ntawm cov khoom, tsim ib txheej nyias ntawm cov tawv tawv tawv, thaum nplaim tawv tawv tuaj yeem xaiv harden tej thaj chaw ntawm ib feem.
Case hardening thiab nplaim taws hardening yog ob hom txheej txheem deg hardening uas muaj ntau daim ntawv thov tseem ceeb hauv kev lag luam.
Case Hardening yog dab tsi?
txheej txheem txheej txheem tawv tawv yog qhov tawv tawv ntawm cov hlau uas tso cai rau qhov sib sib zog nqus hauv qab ntawm cov hlau kom nyob twj ywm mos thaum tsim ib txheej nyias ntawm cov hlau nyuaj ntawm qhov chaw. Muaj cov txheej txheem sib txawv ntawm cov txheej txheem tawv tawv, suav nrog cyaniding, carbonitriding, carburizing, nitriding, nplaim taws lossis induction hardening, thiab ferric nitrocarburizing.
Cyaniding yog hom txheej txheem tawv tawv uas siv sodium cyanide. Qhov no yog cov txheej txheem ceev heev thiab muaj txiaj ntsig uas yog qhov tseem ceeb ntawm cov pa roj carbon tsawg. Hauv cov txheej txheem no, peb yuav tsum ua kom sov cov khoom siv hlau los yog ib feem ntawm nws ntawm qhov kub thiab txias hauv da dej ntawm sodium cyanide. Tom qab ntawd, peb yuav tsum tau tua cov hlau, tom qab ntawd yaug nws hauv dej lossis roj, txhawm rau tshem tawm cov sodium cyanide seem ntawm cov hlau.
Carbonitriding yog ib hom ntawm cov ntaub ntawv hardening nyob rau hauv uas ib tug gaseous cua yog siv rau cov txheej txheem hardening. Peb tuaj yeem soj ntsuam tias cov txheej txheem carbonitriding zoo ib yam li cov txheej txheem cyaniding, tshwj tsis yog cov txheej txheem no siv cov pa cua.
Nplaim tawv tawv yog dab tsi?
Nplaim tawv tawv yog txheej txheem ntawm kev kho cua sov uas cov nplaim hluav taws xob oxyfuel ncaj qha cuam tshuam rau thaj tsam iav-tus hniav kom tawv, uas tom qab ntawd raug quenching. Cov txheej txheem no tuaj yeem ua rau muaj txheej txheej nyuaj ntawm martensite dhau ntawm cov tub ntxhais sab hauv softer. Nws muaj tus nqi qis dua li induction hardening.
Yeej, muaj ob hom nplaim tawv tawv txheej txheem; lawv yog spin hardening thiab hniav-ntawm-ib-lub sij hawm txoj kev. Spin hardening yog qhov zoo tshaj plaws rau cov iav uas muaj qhov loj txaus los nqus cov cua kub ntau dhau uas tau siv rau hauv txoj kev hais saum toj no yam tsis muaj kev cuam tshuam ntau. Thaum xav txog cov txheej txheem hniav-ntawm-ib-lub sijhawm, peb yuav tsum tau ua kom sov lub iav thiab quench nws siv lub tshuab uas tuaj yeem txwv cov cua sov mus rau hauv lub iav. Ob txoj kev loj uas peb siv tau rau qhov cua sov no yog txoj kev hniav-rau-tus hniav thiab txoj kev uas tsuas yog cov flank hardened, tawm hauv paus cheeb tsam tsis kho.
Nyob rau hauv cov txheej txheem nplaim taws, cov nplaim hluav taws muaj ib lub taub hau los yog ntau lub nplaim taws txav mus rau ntawm qhov chaw, uas tuaj yeem nce qhov kub txog li 850 degrees Celsius. Cov kauj ruam no yuav tsum tau ua raws li cov dej quenching lub taub hau uas txau dej ntawm qhov chaw ua ntej rhuab.
Qhov txawv ntawm Case Hardening thiab Nplaim Hardening yog dab tsi?
Muaj ntau hom txheej txheem txheej txheem tawv tawv, xws li cyaniding. Ob leeg cov ntaub ntawv hardening thiab nplaim hardening yog qhov tseem ceeb hauv kev ua kom tawv tawv ntawm ib qho khoom. Qhov sib txawv tseem ceeb ntawm cov ntaub ntawv hardening thiab nplaim hardening yog tias cov ntaub ntawv hardening tuaj yeem ua kom cov tawv tawv ntawm cov hlau los ntawm cov khoom siv rau hauv cov khoom siv, tsim cov txheej nyias ntawm cov hlau tawv tawv, thaum cov nplaim tawv tawv tuaj yeem xaiv cov tawv tawv tshwj xeeb ntawm cov khoom. qhov chaw ntawm ib feem. Case hardening yog feem ntau rau cov hlau tsis tshua muaj hlau xws li cov hlau me me, thaum cov nplaim tawv tawv yog siv rau ntau yam khoom siv los ntawm cov hlau.
Cov ntawv qhia hauv qab no nthuav tawm qhov sib txawv ntawm cov ntaub ntawv tawv thiab nplaim tawv tawv hauv daim ntawv qhia rau kev sib piv ntawm ib sab.
Summary – Case Hardening vs Flame Hardening
Qhov sib txawv tseem ceeb ntawm cov ntaub ntawv tawv tawv thiab cov nplaim tawv tawv yog cov ntaub ntawv tawv tawv tuaj yeem ua rau cov tawv tawv ntawm cov hlau los ntawm infusing cov ntsiab lus rau saum npoo ntawm cov khoom, tsim ib txheej nyias ntawm cov tawv tawv tawv, thaum nplaim tawv tawv tuaj yeem xaiv harden tej thaj chaw ntawm ib feem.
