Nyob zoo, cov phooj ywg! Peb yog cov kws tshaj lijhmoov hlau qhov chaw manufacturers nyob Suav teb. Peb muaj ntau heevhmoov metallurgy sintering ntawm cov khoom. Raws li cov hmoov metallurgy chaw tsim tshuaj paus kuv yuav qhia koj yuav ua li cas issintering txheej txheem nyob rau hauv hmoov metallurgy!
Sintering txheej txheem hauv hmoov metallurgyKev hloov pauv ntawm lub cev thiab tshuaj lom neeg, xws li dej los yog organic evaporation lossis volatilization, adsorption gas purging, tshem tawm kev ntxhov siab, cov hmoov particle deg oxide txo, intergranular khoom tsiv teb tsaws, recrystallization thiab grain loj hlob, yog li ua crystal interface ntawm cov khoom nce, lub pore shrink los yog txawm ploj. Thaum cov kua theem tshwm sim, qhov tawg thiab nag lossis daus ntawm cov khoom theem kuj yuav tshwm sim. Cov txheej txheem no tsis muaj ciam teb meej nrog ib leeg, tab sis sib tshooj thiab cuam tshuam ib leeg. Ntxiv nrog rau lwm yam sintering hauv metallurgy, cov tshuaj tiv thaiv ntawm tag nrho cov khoom ua los ntawm hmoov metallurgy yog qhov nyuaj. Nyob rau hauv 1942, German GF Schutig siv lub cev thiab tshuaj txoj kev tshawb fawb los ntsuas qhov cuam tshuam ntawm sintering kub ntawm electromotive quab yuam, solubility, ntom, microstructure, txhua yam khoom ntawm sintered lub cev, thiab pom tias sintering yog ib tug complex txheej txheem. Xyoo 1949, GCKuczynski ntawm Tebchaws Meskas tau kawm txog kev sintering ntawm cov pob hlau thiab cov phaj hlau thiab ntseeg tias cov khoom siv tsiv teb tsaws chaw thaum sintering feem ntau yog ua los ntawm diffusion. Lawv txoj haujlwm tau thawb txoj kev kawm ntawm sintering txoj kev xav mus rau theem tshiab. Ntau ntawm cov kev tshawb fawb tom ntej tau tsom mus rau cov txheej txheem ntawm cov khoom tsiv teb tsaws thaum sintering.
Nws feem ntau ntseeg tau tias muaj tsib lub tswv yim ntawm cov khoom siv tsiv teb tsaws thaum sintering: viscous lossis yas ntws, evaporation thiab condensation, ntim diffusion, grain ciam diffusion, thiab nto diffusion. Thaum ob tug kheej kheej hais nyob rau hauv kev sib cuag yog sintered, kev loj hlob ntawm kev sib cuag lub caj dab vojvoog X tej zaum yuav muaj feem xyuam rau lub sij hawm sintering t raws li nram no:
Sintering txheej txheem sintering yuav tsum tau nqa tawm nyob rau hauv ib tug sintering rauv nrog ib tug tiv thaiv cua kom tsis txhob oxidation ntawm sintered lub cev los yog tsis zoo tshuaj tiv thaiv. Muaj ntau ntau hom sintering furnaces, uas tuaj yeem siv los ua cov cua sov xws li cov nkev, roj, roj thiab hluav taws xob. Hluav taws xob cua sov rauv yog kev lag luam thiab yooj yim, yooj yim kho thiab tswj. Kev tiv thaiv huab cua feem ntau yog lub tshuab nqus tsev, argon, helium, nitrogen, carbon dioxide thiab lwm yam inert gases thiab hydrogen, decomposition ntawm ammonia, carbon monoxide, hloov dua siab tshiab ntawm cov pa roj carbon monoxide thiab lwm yam roj.
Txhawm rau txhawm rau txhim kho kev ua tau zoo ntawm cov khoom siv sintered thiab qhov loj thiab cov duab raug, nws yog ib qho tsim nyog yuav tsum ua kom tiav shaping, xov, repressing, roj immersion, mechanical processing, heat treatment thiab lwm yam txheej txheem tom ntej.
Txhaj tshuaj molding txheej txheem ntws
Post lub sij hawm: Lub Xya hli ntuj-29-2022