Hauv ntau yam kev sib txuas ntawm kev tsim khoom lag luam,casting hlau cib, ua ib yam khoom tseem ceeb uas muaj cov yam ntxwv tshwj xeeb, ua lub luag haujlwm tseem ceeb. Nrog lawv qhov kev tiv taus kub zoo heev, kev tiv taus corrosion thiab lwm yam ntxwv, lawv tau siv dav hauv ntau qhov chaw, muab kev lees paub tseem ceeb rau kev vam meej ntawm kev tsim khoom lag luam.
Lub Luag Haujlwm Tseem Ceeb hauv Metallurgical Casting
Hauv kev lag luam casting metallurgical, cov cib hlau casting yog cov khoom siv tseem ceeb uas tsis tuaj yeem tsis tau. Lawv lub hom phiaj tseem ceeb yog ua haujlwm ua ib txoj hauv kev rau cov hlau molten kom ntws los ntawm lub ladle mus rau lub pwm ingot hauv cov txheej txheem casting hauv qab. Tshwj xeeb, cov cib hlau casting yog tsim rau hauv cov grooves ntawm lub phaj ingot casting, nrog ib kawg txuas nrog lub cib faib hlau thiab lwm qhov kawg txuas nrog lub pwm ingot, tsim ib txoj hauv kev tseem ceeb rau kev ntws ntawm cov hlau molten. Yog li ntawd, lawv feem ntau hu ua "tundish cib" los ntawm cov neeg sab hauv.
Thaum lub sijhawm nchuav cov hlau uas kub heev, qhov kub ntawm cov hlau uas kub heev yog siab heev, feem ntau ncav cuag ntau txhiab degrees Celsius, uas ua rau muaj qhov yuav tsum tau ua kom cov cib hlau tsis kam kub heev. Tib lub sijhawm, cov hlau uas kub heev yuav muaj kev cuam tshuam loj heev thiab ua rau lub cev cib thaum lub sijhawm ntws, thiab cov hlau uas kub heev kuj yuav muaj qee yam tshuaj lom neeg nrog lub cev cib. Cov cib hlau uas kub heev tuaj yeem tiv taus cov kev sim no thiab ua kom cov hlau uas kub heev ntws zoo. Nws lub qhov sab hauv yog du, uas tuaj yeem txo qhov tsis kam thaum cov hlau uas kub heev ntws, zam kev ntws tsis zoo thaum cov hlau uas kub heev ntws, yog li txo qhov tsis zoo xws li npuas thiab cov khoom sib xyaw hauv cov ingot, thiab txhim kho qhov zoo ntawm cov ingot. Txawm hais tias nws yog kev casting tiaj tus ntawm cov hlau tsis xeb, hlau alloy lossis cov hlau carbon ib txwm muaj, cov cib hlau casting tuaj yeem hloov kho tau zoo los muab kev txhawb nqa ruaj khov rau kev casting ntawm ntau hom hlau.
Ib qho khoom siv tseem ceeb rau cov cub tawg hauv kev lag luam
Cov cub tawg ua lag luam yog cov khoom siv tseem ceeb hauv ntau cov txheej txheem tsim khoom lag luam, xws li cov cub tawg thiab cov qhov cub tawg kub hauv kev lag luam hlau thiab hlau, thiab cov cub tawg ua lag luam hauv kev lag luam tshuaj lom neeg. Cov cub tawg no feem ntau yuav tsum tau ua haujlwm hauv qhov chaw kub siab, thiab qhov chaw sab hauv yog qhov nyuaj heev. Cov cib hlau casting, nrog lawv qhov kev tiv taus kub siab thiab kev tiv taus corrosion zoo heev, tau dhau los ua qhov kev xaiv zoo tshaj plaws rau kev siv hauv pem teb ntawm cov cub tawg lag luam.
Siv cov cib hlau casting ua lub hauv paus ntawm cov cub tawg kev lag luam tuaj yeem tiv taus qhov kub siab hauv lub cub tawg thiab kev puas tsuaj ntawm ntau yam roj thiab kua corrosive. Nws tuaj yeem tiv thaiv lub plhaub ntawm lub cub tawg, zam kev hloov pauv thiab kev puas tsuaj ntawm lub cev cub tawg vim qhov kub siab, thiab ua kom lub cub tawg ntev dua. Tib lub sijhawm, cov cib hlau casting muaj kev ua tau zoo thermal rwb thaiv tsev, uas tuaj yeem txo qhov poob cua sov hauv lub cub tawg, txhim kho kev siv hluav taws xob, thiab txo kev siv hluav taws xob ntau lawm. Hauv qee lub cub tawg uas xav tau kev tswj qhov kub thiab txias meej, kev ua haujlwm ruaj khov ntawm cov cib hlau casting kuj tseem tuaj yeem pab tswj qhov kub thiab txias hauv lub cub tawg, xyuas kom meej tias cov txheej txheem ntau lawm ruaj khov, thiab yog li txhim kho cov khoom zoo.
Kev Siv Tiv Thaiv Hauv Cov Txheej Txheem Yeeb Nkab Tshwj Xeeb
Hauv qee qhov kev tsim khoom lag luam, muaj cov kav dej tshwj xeeb rau kev thauj cov khoom kub thiab siab (xws li cov pa kub, cov hlau yaj, thiab lwm yam). Cov kav dej no nyob rau hauv qhov xwm txheej ua haujlwm hnyav rau lub sijhawm ntev thiab yooj yim rau kev khawb, xeb thiab kev puas tsuaj los ntawm cov khoom kub, uas cuam tshuam rau kev nyab xeeb thiab lub neej ua haujlwm ntawm cov kav dej.
Cov cib hlau uas siv los ua cov kav dej no siv tau los tiv thaiv cov khoom tseem ceeb ntawm cov kav dej tshwj xeeb no. Los ntawm kev tsim cov cib hlau uas siv rau hauv cov chaw tshwj xeeb sab hauv lossis sab nraud ntawm cov kav dej, ib qho khoom tiv thaiv khov kho tuaj yeem tsim los tiv thaiv kev cuam tshuam ncaj qha thiab kev puas tsuaj ntawm cov khoom nruab nrab ntawm cov kav dej. Tshwj xeeb tshaj yog ntawm cov qhov tig thiab qhov sib txuas ntawm cov kav dej, uas yooj yim hnav thiab xeb, qhov cuam tshuam ntawm cov cib hlau uas siv los ua cov kav dej yog qhov pom tseeb dua. Nws tuaj yeem txo qhov kev hnav ntawm cov kav dej, txo qhov kev pheej hmoo ntawm kev xau ntawm cov kav dej, xyuas kom meej tias kev ua haujlwm zoo thiab ruaj khov ntawm cov kav dej, txo qhov kev cuam tshuam ntawm kev tsim khoom los ntawm kev saib xyuas cov kav dej, thiab txhim kho kev ua haujlwm zoo.
Cov cib ua los ntawm hlau, nrog rau lawv cov yam ntxwv tshwj xeeb, muaj cov ntawv thov tseem ceeb hauv kev ua hlau, cov cub tawg hauv kev lag luam, cov kav dej tshwj xeeb thiab lwm yam. Nrog rau kev txhim kho tas mus li ntawm cov thev naus laus zis tsim khoom lag luam, qhov yuav tsum tau ua kom cov cib ua los ntawm hlau tseem nce ntxiv tas li. Yav tom ntej, lawv cov ntawv thov yuav nthuav dav ntxiv, muab kev txhawb nqa cov khoom siv txhim khu kev qha rau ntau qhov chaw lag luam. Yog tias koj tab tom nrhiav cov ntaub ntawv tiv taus kub thiab tiv taus xeb rau cov haujlwm lag luam cuam tshuam, cov cib ua los ntawm hlau yog qhov kev xaiv zoo uas tsim nyog xav txog.
Lub sijhawm tshaj tawm: Lub Yim Hli-01-2025
