Khoom Taw Qhia

80-60-03 poob ciab peev casting qhov chaw ntawm cov hlau hlau

80-60-03 Mechanical properties of ductile iron

Cam khwb cia hlau - txheej txheem kev kho cua sov

1. Kev ntxhov siab ntxhov siab annealingVim yog qhov tsis sib xws ntawm phab ntsa ntawm cov casting, nyob rau hauv cov txheej txheem ntawm cua sov, txias thiab theem hloov, yuav muaj kev cuam tshuam lub zog thiab lub koom haum kev nyuaj siab. Tsis tas li ntawd, qhov loj me kuj tseem ua rau cov kev ntxhov siab seem tom qab machining, thiab tag nrho cov kev ntxhov siab sab hauv no raug tshem tawm. Cov cua sov li niaj zaus ntawm kev ntxhov siab annealing yog 500 ~ 550 degree, lub sij hawm tuav yog 2 ~ 8h, thiab tom qab ntawd rauv cua txias (grey hlau) lossis cua txias (cov hlau nplaum). Kev siv cov txheej txheem no tuaj yeem tshem tawm 90 mus rau 95% ntawm cov kev ntxhov siab sab hauv ntawm cov casting, tab sis cov qauv cam khwb cia hlau tsis hloov. Yog tias qhov kub siab tshaj 550 ° C lossis lub sijhawm tuav ntev dhau lawm, nws yuav ua rau graphitization, txo lub zog thiab hardness ntawm casting.

2. Tshem tawm qhov kub siab graphitization annealing ntawm cam khwb cia hlau dawb npoo

Thaum nodular cam khwb cia hlau yog txias, qhov saum npoo thiab nyias ntu feem ntau tsim cov qhov dawb. Cov ntaub so ntswg dawb tawv thiab nkig, ua haujlwm tsis zoo, yooj yim rau flake. Yog li ntawd, txoj kev annealing (los yog normalizing) yog siv los tshem tawm cov ntaub so ntswg dawb. Cov txheej txheem annealing yog: cua sov rau 550-950 degree C rau 2 mus rau 5 h, thiab tom qab ntawd txias rau 500-550 degree C thiab tom qab ntawd cua txias. Thaum lub sij hawm kub kub tuav, lub hypercementite thiab eutectic cementite decompose rau hauv graphite thiab A, thiab nyob rau hauv lub tom ntej txias txheej txheem, lub thib ob cementite thiab eutectoid cementite kuj decompose thiab graphitization tshwm sim. Vim lub decomposition ntawm cementite, hardness txo, yog li txhim kho lub machinability.

3. Normalizing ntawm ductile hlau

Lub hom phiaj ntawm ductile hlau normalizing yog kom tau pearlite matrix qauv, thiab refine grain, uniform qauv, nyob rau hauv thiaj li yuav txhim kho lub mechanical zog ntawm castings. Qee lub sij hawm normalizing kuj yog qhov kev npaj ntawm ductile hlau nto quenching ntawm tus qauv, normalizing kub normalizing thiab tsis kub normalizing. Lub siab kub normalizing kub feem ntau tsis ntau tshaj 950 ~ 980 degree, thiab qhov kub tsis tshua muaj normalizing feem ntau yog rhuab mus rau co-folding kub ntau ntawm 820 ~ 860 degree . Tom qab normalizing, nws yog feem ntau yuav tsum tau ua plaub-tus neeg kev kho mob kom tshem tawm cov kev ntxhov siab nyob rau hauv lub sij hawm normalizing.

4. quenching thiab tempering ntawm ductile hlau

Txhawm rau txhim kho cov khoom siv hluav taws xob ntawm cov khoom siv hlau, qhov dav dav casting yog rhuab mus rau 30 ~ 50 degree C saum toj no Afc1 (Afc1 sawv cev rau qhov kawg kub tsim los ntawm A thaum cua sov), thiab quenched rau hauv cov roj tom qab tshav kub preservation kom tau martensitic qauv. . Txhawm rau kom txo qis cov kev ntxhov siab seem tom qab quenching, qhov dav dav quenching yuav tsum tau tempered, thiab qhov kub tsis tshua muaj tempering qauv yog tempered martensite ntxiv rau cov seem bainite thiab kheej kheej graphite. Cov qauv no muaj qhov hnav tsis zoo thiab yog siv rau cov khoom uas yuav tsum tau hnav tsis kam thiab siab zog. Lub tempering kub yog 350-500 degree, thiab cov qauv tempered yog tempered trootenite thiab kheej kheej graphite, uas yog haum rau tuab qhov chaw uas yuav tsum tau zoo hnav kuj thiab muaj tej yam zoo stability thiab elasticity. Xiangyun tuam txhab - muaj feem xyuam nrog cov txuj ci ntau ntxiv hauv cov hlau thiab hlau txuj ci network. Qhov kub-kub kub kub yog 500-60D degree, tempered qauv yog tempered Soxlet rau kheej kheej graphite, thiab cov qauv tempered yog tempered Soxlet rau kheej kheej graphite nrog zoo toughness thiab lub zog ua ke yog 500-60D degree , thiab cov qauv tempered yog tempered Soxlet rau spherical graphite, uas muaj ib tug zoo ua ke ntawm toughness thiab lub zog, yog li nws yog dav siv nyob rau hauv ntau lawm.

Grey cam khwb cia hlau

GB Tuam Tshoj HT100, HT150, HT200, HT250, HT300, HT350

JIS Nyiv FC100, FC150, FC200, FC250, FC300, FC350

KS Kauslim GC100, GC150, GC200, GC250, GC300, GC350

AWS USA NO.20 NO.25 NO.30 NO.35 NO.40 NO.45 NO.50 NO.55 NO.60

UNS F11401, F11701, F12101, F12801, F13101, F14101 hauv Asmeskas

Nodular cam khwb cia hlau

GB China QT400-18, QT420-10, QT400-15, QT450-10, QT500-7, QT600-3, QT700-2 , QT800-2, QT900-2

JIS Nyiv FCD350-22, FCD400-18, FCD400-15, FCD450-10, CD500-7, FCD600-3, FCD700-2 , FCD800-2

KS Kauslim GCD370, GCD400, GCD450, GCD500, GCD600, GCD700, GCD800

AWS USA 60-40-18, 65-45-12, 80-55-06, 80-60-03, 100-70-03, 120-90-02

UNS F32800, F33100, F33800, F34800, F36200 hauv Tebchaws Meskas

Cov ntsiab lus tshwj xeeb: cov khoom specifications, tus nqi concessions, ntim tsis zoo, ntshiab tooj liab, zoo ncaj, loj cov khoom muag, tuaj yeem muab cov ntaub ntawv pov thawj.

Specifications tuaj yeem kho tau, 【 precision 】 lub tuam txhab txais tos koj hu, peb yuav ua tsaug rau koj.

Zhongwei precision siab ntawm "kev pab dawb, tsim lub neej yav tom ntej; Tus ntsuj plig ntawm kev lag luam, ua raws li cov neeg-taw qhia, kev tshawb fawb thiab thev naus laus zis Hoobkas: kev lag luam lub tswv yim, tsim lawv tus kheej muaj zog technical force thiab ntau lawm technology. Txuas ntxiv tsom mus rau kev pabcuam kev lag luam, cov khoom zoo; Ntau yam khoom muag tau muag rau cov nroog loj hauv tsev thiab txawv teb chaws, thiab txaus siab rau lub koob npe nrov rau kev pabcuam thiab zoo ntawm cov neeg siv khoom.

Peb cog lus: peb cov kev sib pauv thiab kev koom tes yav dhau los yuav muab koj cov khoom lag luam thiab cov kev pabcuam zoo dua.

Kuv rau precision rau cov khoom kom zoo dua, mus teev rau lub lag luam, lub siab dawb paug, efficiency, zoo, lub luag hauj lwm yog peb tus cwj pwm. Cov khoom siv, kev ua haujlwm zoo, kev ntseeg siab ntawm cov neeg siv khoom yog lub hauv paus ntawm peb nres hauv kev lag luam kev lag luam, qhov tseeb ntawm cov ntaub ntawv muab los ntawm peb lub tuam txhab thiab nrog rau cov ntaub ntawv pov thawj thawj thiab lwm yam ntaub ntawv cuam tshuam. Peb cia siab thiab siv zog los muab cov neeg siv khoom mus sij hawm ntev thiab cov khoom siv raws sij hawm, thiab siv zog los tsim kev phooj ywg ruaj khov thiab kev koom tes nrog peb cov neeg siv khoom kom ua tiav cov txiaj ntsig yeej.

Zhongwei Precision muaj cov kev pabcuam hauv qab no

Detection Systems

Copper Silica Sol Investment Casting

Peb yog cov chaw tsim khoom ntawm "80-60-03 Ductile hlau castings", yog tias koj xav tau cov ntaub ntawv ntxiv thov hu rau peb!