Txoj kev tsim ntawm tooj liab ua npuas ncauj
Aug 30, 2022
Zoo li feem ntau cov hlau ua npuas dej ntau lawm, tooj liab ua npuas ncauj yog feem ntau raws li tooj liab, uas tuaj yeem ua rau ntau qhov sib txuas lossis tsis txuas qhov pores sib npaug ntawm cov tooj liab thaum lub sijhawm tsim khoom. Copper ua npuas ncauj inherits ob qho tib si muaj feem xyuam nrog cov khoom ntawm tooj liab thiab qhov zoo ntawm cov hlau ua npuas ncauj. Piv txwv li, tooj liab ua npuas ncauj nws tus kheej muaj cov khoom siv hluav taws xob zoo heev thiab ductility, thaum tus nqi ntawm cov khoom siv tooj liab yog qhov tsawg, thiab qhov kev thov dav dua.
Yog li cas cov txheej txheem ntau lawm thiab cov txheej txheem siv los tsim tooj liab ua npuas ncauj?
1. hmoov metallurgy
Txoj kev no feem ntau yog los ntawm kev txuas ntxiv ua npuas ncauj rau cov hmoov. Tom qab ob cov ntaub ntawv tau sintered tag nrho, tus neeg sawv cev tshuab volatilizes tawm hauv qhov khoob, thiab tus neeg sawv cev tshuab tuaj yeem tsim tau.
2. Electrochemical deposition
Nyob rau hauv cov txheej txheem ntawm cov txheej txheem no, cov txheej txheem foamed tooj liab tsis tsuas yog muaj cov duab tsis tu ncua, tab sis kuj muaj li ntawm 95 feem pua porosity, uas tuaj yeem siv dav hauv kev tsim cov hlau foamed.
3. Sintering-Demelting txheej txheem
Piv nrog rau thawj ob txoj kev ntawm kev tsim cov tooj liab foamed, txoj kev no yog qhov nyuaj dua. Ua ntej, electrolytic tooj liab hmoov thiab sodium chloride hais yog tov nrog ntau yam additives, thiab ces cov sib tov yog nias rau hauv ntsuab embryos. Cov embryos ntsuab yog sintered nyob rau hauv argon, thiab cov khoom yog yaj nyob rau hauv ib tug circulating dej kub ntaus ntawv. Tom qab lub dissolution tiav lawm, nws yog ntxuav nrog ib tug ultrasonic da dej thiab acetone, thiab qhuav los tsim qhib pores tom qab ntxuav. Txawm li cas los xij, tus nqi qhib ntawm txoj kev no tsuas yog 50 ~ 81 feem pua, thiab qhov nruab nrab qhib txoj kab uas hla yog 0.2 ~ 4 hli.
Feem ntau ntawm cov tuam txhab ua npuas dej tam sim no, hauv cov txheej txheem tsim khoom, feem ntau yog siv peb txoj hauv kev saum toj no rau kev tsim khoom. Ntawm lawv, hmoov metallurgy thiab electrochemical deposition yog feem ntau siv txoj kev; Txawm hais tias hlau ua npuas ncauj muaj ntau qhov zoo thiab kev ua tau zoo, thiab nws txoj kev siv zeem muag thiab daim ntawv thov kev lag luam kuj tseem dav heev, yuav ua li cas txo nws cov nqi tsim khoom thiab txhim kho cov cuab yeej technology tau dhau los ua qhov xav tau ceev hauv zej zog kev tshawb fawb. daws teeb meem.
