Hais txog qhov txias ntawm hniav stainless hlau kav nyob rau hauv cov txheej txheem ntau lawm, cov kev cai thov ntawm no yog siab heev.Piv txwv li, yog tias qhov ntsuas kub tsis zoo, ua rau lub cim ntawm 316 thermal kev nyuaj siab thiab kev ntxhov siab, cov yeeb nkab steel yuav tawg lossis deform.Tom ntej no, Hangao Tech (SEKO Machinery) yuav ua kom paub meej txog kev paub txog kev tsim cov kav hlau stainless kom txias:
Vim tias qhov rov ua dua ntawm qhov nro sab hauv thaum ua tiav, cov hniav hlau stainless hlau yuav raug deformed, thiab kev ua tiav tsis tuaj yeem lav.Tsis tas li ntawd, tuav cov khoom loj yog qhov ua rau muaj kev ntxhov siab.Tag nrho cov hlau tsis zoo nkauj no yuav tsum tsis txhob muaj kev ntxhov siab tom qab kev ua haujlwm tsis zoo.Kev tshem tawm ntawm kev ntxhov siab sab hauv annealing feem ntau yog los kho lub raj stainless hlau.Ntawm 500-550 ° C, yav tas los nws tau siv nyob rau hauv chav tsev kub rau 50 mus rau 100 feeb, 3 mus rau 5 teev los yog ntau tshaj (nyob ntawm seb tus naj npawb ntawm cov cub tawg tau teeb tsa) kom tswj tau qhov nro ntawm lub sijhawm ntev.Nws yog hu ua natural aging, tab sis txoj kev no yog ntev heev thiab feem ntau tsis siv.
Thaum lub stainless hlau hniav zoo nkauj lub raj yog txias, nto thiab ib co nyias qhov chaw feem ntau tsim ib tug dawb, tawv, nkig dawb qauv.Yog li ntawd, zoo tib yam stainless hlau hniav zoo nkauj raj yuav tsum tau annealed los yog standardized kom tshem tawm cov tsis xws luag casting.Lub annealing lossis normalization kub yog feem ntau ntawm 850 thiab 950 ° C.Qhov kub yog khaws cia rau 1-2 teev, cementite yog synthesized hauv graphite thiab austenite (thawj theem ntawm graphitization).Peb online nruam qaim annealing rauv tuaj yeem pab koj.Nws tsis xav tau preheating, nws tuaj yeem ncav cuag qhov zoo tshaj plaws annealing kub li ntawm 10 vib nas this tom qab pib.
Ntxiv mus, nws txuas nrog PLC system, koj tuaj yeem pom cov ntaub ntawv ntawm lub sijhawm tiag tiag, kev saib xyuas lub sijhawm ntawm huab cua siab, dej ntws, ua haujlwm kub, ceev.Thaum lub sijhawm txias tom ntej ntawm lub cub tawg, cov cementite thiab eutectoid cementite yuav raug muab sib xyaw ua ke hauv graphite (piv txwv li, theem ob ntawm graphitization).Thaum kawg, perlite yog ntxiv rau ferrite lossis ferrite matrix kom txo cov hardness thiab lub zog ntawm cov casting.Tsis tas li ntawd, cov txheej txheem cementing yog 850-950 ° C, tab sis cov cementite nyob rau hauv cov txheej txheem txheej txheem, uas tuaj yeem txo lub sijhawm txias ntawm qhov nyuaj ntawm cov hniav stainless hlau raj, kuj tuaj yeem tau txais qee lub zog thiab hardness ntawm pearlite matrix ua ke. .
