Hauv kev lag luam hlau muaj nqis uas muaj kev sib tw hnyav, kev tsim kho tshiab hauv kev siv tshuab tsim khoom tau dhau los ua qhov tseem ceeb rau kev yeej rau cov tuam txhab.Cov tshuab casting tas mus litau maj mam dhau los ua "nyiam" ntawm feem ntau cov tuam txhab hlau muaj nqis vim lawv cov txiaj ntsig tshwj xeeb. Cov thev naus laus zis no ntawm kev sib txuas ntxiv casting cov kua hlau kub siab rau hauv cov lus qhia tshwj xeeb ntawm kev castings coj cov txiaj ntsig zoo rau cov tuam txhab los ntawm kev ua haujlwm zoo mus rau qhov zoo ntawm cov khoom. Tom ntej no, peb yuav tshawb nrhiav tob txog cov laj thawj vim li cas nws thiaj li nyiam heev.
1. Kev tsim khoom zoo, kev ntes cov cib fim ua lag luam
(1) Kev tsim khoom tas mus li ua rau lub sijhawm voj voog luv dua
Lub tshuab casting tas mus li tau tawg txoj kev tsim khoom ib txwm muaj ntawm cov txheej txheem pwm casting thiab ua tiav kev tsim cov hlau molten mus rau castings. Casting ib txwm muaj ntau yam txheej txheem tedious xws li kev ntxuav pwm, preheating, casting, thiab demolding tom qab ua tiav txhua lub cub tawg ntawm casting, uas tsis tsuas yog siv sijhawm ntev xwb tab sis kuj tawm hauv cov khoom siv tsis ua haujlwm ntev.
Thiab lub tshuab casting tas mus li tuaj yeem ua haujlwm tas mus li. Piv txwv li, piv txwv li, ib lub tuam txhab tsim kub uas paub zoo, tom qab qhia txog lub tshuab casting tas mus li, nws lub voj voog tsim khoom billet tau luv dua los ntawm 8 teev ib pawg mus rau 3 teev, thiab kev ua haujlwm tau nce ntau dua 1.5 npaug. Hom kev tsim khoom zoo no ua rau cov tuam txhab teb tau rau kev thov ntawm kev ua lag luam sai dua thiab ua tus thawj coj hauv kev thawb cov khoom mus rau kev ua lag luam hauv kev ua lag luam uas muaj kev hloov pauv ntau zaus ntawm cov nqi hlau muaj nqis, yog li tau txais txiaj ntsig sib tw.
(2) Cov hlau ntau ntxiv txo cov nqi
Cov hlau muaj nqis kim heev, thiab txawm tias ib feem me me ntawm kev poob kuj tuaj yeem ua rau tus nqi nce siab heev. Thaum lub sijhawm tsim khoom ntawm lub tshuab casting tas mus li, cov hlau molten raug tsim ncaj qha, txo cov hlau poob los ntawm cov khoom seem casting, riser txiav, thiab lwm yam.
Cov ntaub ntawv qhia tau hais tias piv rau kev ua cov hlau ib txwm muaj, cov hlau uas siv cov tshuab ua cov hlau tas mus li feem ntau yuav nce ntxiv li ntawm 12% -15%. Piv txwv li, yog tias siv cov tshuab ua cov hlau tas mus li, ib lub tuam txhab uas muaj 5 tons ntawm platinum txhua xyoo tuaj yeem tsim tau txog li 600-750 kilograms ntawm platinum txhua xyoo. Yog tias siv cov tshuab ua cov hlau tas mus li, nws tuaj yeem ua rau cov nyiaj tau los ntau dua los ntawm ntau lab lossis txawm tias kaum lab yuan ib xyoos, uas ua rau cov nqi tsim khoom ntawm cov khoom lag luam thiab txhim kho cov nyiaj tau los ntawm lub tuam txhab.
2. Kev tswj hwm kom meej kom ntseeg tau tias cov khoom zoo
(1) Kev tswj hwm qhov tseeb ntawm cov txheej txheem khov kho
Lub tshuab casting tas mus li ua tiav kev tswj hwm qhov txheej txheem khov ntawm cov hlau molten los ntawm kev kho kom raug cov yam ntxwv xws li qhov txias ntawm lub crystallizer, qhov ceev casting, thiab kev faib dej hauv thaj chaw txias thib ob. Piv txwv li, thaum qhov txias ntawm lub crystallizer raug kho kom nrawm dua, qhov loj ntawm cov nyiaj casting yuav zoo dua thiab sib xws dua. Tom qab sim, nws lub zog nce li 20% thiab qhov tawv tau txhim kho 15%, zoo heev rau kev ua tiav tom qab.
Lub peev xwm tswj tau qhov tseeb no tuaj yeem ua tau raws li ntau yam kev xav tau ntawm cov neeg siv khoom sib txawv rau kev ua haujlwm ntawm cov khoom, ua rau cov khoom siv hlau muaj nqis uas cov tuam txhab tsim tawm sib tw zoo dua.
(2) Txo cov teeb meem sab hauv thiab txhim kho cov txiaj ntsig
Hauv cov txheej txheem casting tas mus li, lub billet yog tsim nyob rau hauv cov xwm txheej ruaj khov, thiab cov txheej txheem kos duab yog raug rau lub zog sib xws, zoo zam kev tawg sab hauv, xoob thiab lwm yam tsis zoo los ntawm cov zog sab nraud nyuaj hauv cov pwm casting ib txwm muaj.
Muaj ib lub tuam txhab ua hlau platinum uas tau ua ib qho kev sim sib piv, thiab pom tias thaum siv cov txheej txheem pwm casting ib txwm muaj, qhov tawg ntawm cov khoom siv casting billet sab hauv yog siab txog 8%, tab sis tom qab hloov mus rau kev tsim cov tshuab casting tas mus li, qhov tsis xws luag tau txo qis mus rau tsawg dua 1%. Cov castings zoo tau tsim lub hauv paus ruaj khov rau kev ua tiav tom ntej, ua rau cov khoom tsim tau ntau dua 85% mus rau ntau dua 95%, ua kom ntseeg tau tias cov txiaj ntsig kev lag luam ntawm lub tuam txhab.
3. Kev hloov pauv yooj yim kom tau raws li ntau yam kev xav tau
(1) Kev tsim cov duab thiab qhov ntau thiab tsawg sib txawv
Qhov muaj zog ntawm cov tshuab casting tas mus li yog pom tseeb hauv lawv lub peev xwm los casting billets ntawm ntau yam duab thiab qhov ntau thiab tsawg. Txawm hais tias nws yog cov castings voj voog, square, lossis phaj-puab, lossis cov castings tshwj xeeb-puab cross-section siv hauv cov teb tshwj xeeb, lawv tuaj yeem ua tiav tau yooj yim.
Hauv kev lag luam hniav nyiaj hniav kub, cov tuam txhab lag luam tuaj yeem tsim cov hlau billets puag ncig ntawm ntau txoj kab uas hla los ntawm kev kho lub tshuab casting txuas ntxiv mus raws li qhov yuav tsum tau tsim; Hauv kev lag luam hluav taws xob, nws tseem tuaj yeem pov cov hlau muaj nqis ntawm qhov tuab thiab dav tshwj xeeb kom tau raws li qhov xav tau ntawm kev txiav txim siab ntawm ntau yam kev lag luam thiab cov neeg siv khoom, pab cov tuam txhab lag luam nthuav lawv txoj kev lag luam.
(2) Siv tau rau ntau yam hlau muaj nqis
Cov txheej txheem casting tas mus li muaj kev siv tau zoo rau ntau yam hlau muaj nqis xws li kub, nyiaj, platinum, palladium, thiab lwm yam. Cov khoom siv lub cev thiab tshuaj ntawm cov hlau muaj nqis sib txawv heev, piv txwv li, platinum muaj qhov melting point txog li 1772 ℃, thaum nyiaj muaj qhov melting point tsuas yog 961.78 ℃, thiab lawv cov dej ntws kuj txawv.
Lub tshuab casting tas mus li ua kom zoo dua cov txheej txheem, xws li ua kom lub zog txias thiab qhov ceev ntawm lub crystallizer rau platinum, kho cov khoom siv crystallizer thiab kev kho qhov chaw rau nyiaj, yog li ntawd tib yam khoom siv tuaj yeem hloov kho rau kev tsim ntau yam hlau muaj nqis. Qhov no tsis tsuas yog txhim kho kev siv cov khoom siv, tab sis kuj zam kev nqis peev ntau ntawm cov tuam txhab hauv kev yuav ntau yam khoom siv rau kev tsim cov hlau muaj nqis sib txawv, txo cov nqi khiav lag luam.
4. Kev tsim kho tshiab ntawm thev naus laus zis tsav kev txhim kho kom ruaj khov
(1) Kev siv tshuab thiab kev txawj ntse ua rau muaj kev tsim khoom ntau ntxiv
Lub tshuab ua haujlwm tsis siv neeg thiab lub tshuab tswj ntse uas muaj nyob rau hauv cov tshuab ua casting niaj hnub no tau dhau los ua "lub hlwb ntse" ntawm cov txheej txheem tsim khoom. Ntau yam sensors saib xyuas cov yam ntxwv tseem ceeb xws li qhov kub ntawm cov hlau yaj, qhov siab ntawm cov kua, thiab qhov ceev ntawm cov hlau billet hauv lub sijhawm tiag tiag, thiab xa cov ntaub ntawv mus rau lub tshuab tswj sai sai.
Lub tshuab no tau kho cov kev ua haujlwm ntawm cov khoom siv raws li cov kev pab cuam thiab cov algorithms uas tau teeb tsa ua ntej kom ntseeg tau tias cov txheej txheem tsim khoom ruaj khov thiab raug. Hauv ib lub Hoobkas tsim kub, kev qhia txog cov txheej txheem tswj hwm ntse tau txhim kho qhov ruaj khov ntawm cov khoom los ntawm 30% thiab txo qhov xwm txheej ntawm kev tsim khoom los ntawm kev ua yuam kev ntawm tib neeg los ntawm 80%. Tib lub sijhawm, lub tshuab kuj tseem tuaj yeem muab kev kuaj mob thiab ceeb toom rau cov khoom siv tiag tiag, npaj kev saib xyuas ua ntej, txuas lub neej ua haujlwm ntawm cov khoom siv, thiab txo cov nqi saib xyuas.
(2) Cov txheej txheem tshiab thiab cov khoom siv coj cov cib fim tshiab
Cov kws tshawb nrhiav yeej ib txwm tshawb nrhiav thiab tsim cov txheej txheem thiab cov khoom siv tshiab uas txuas ntxiv mus, txhaj tshuaj tshiab rau hauv kev tsim cov hlau muaj nqis. Kev siv cov thev naus laus zis txuas ntxiv mus ua rau kev tsim cov ntawv hlau muaj nqis ua haujlwm tau zoo dua thiab txuag hluav taws xob.
Kev tsim cov phaj nyias ib txwm xav tau ntau txoj kev dov, thaum cov phaj nyias txuas ntxiv mus txuas ntxiv tuaj yeem tsim cov castings nyias dua, txo cov dov hla thiab txo cov nqi tsim khoom los ntawm 15% -20%. Cov khoom siv tshiab xws li cov tshuab casting txuas ntxiv mus txuas ntxiv kuj tseem niaj hnub tsim kho thiab txhim kho, muab cov tuam txhab hlau muaj nqis nrog ntau txoj kev xaiv thev naus laus zis thiab tsav tsheb kev lag luam mus rau kev txhim kho zoo dua.
Lub sijhawm tshaj tawm: Tsib Hlis-15-2025
