Summary Of Knowledge Of Precision Casting Processing Processing

Precision casting txheej txheem yog ib qho ntawm cov txheej txheem ntawm casting. Precision casting yog ib txoj kev tshwj xeeb casting piv rau cov txheej txheem casting ib txwm. Nws tuaj yeem tau txais cov duab zoo thiab qhov raug siab casting. Qhov kev coj ua ntau dua yog: ua ntej, raws li cov khoom xav tau los tsim thiab tsim khoom (cov npoo tuaj yeem yog me me lossis tsis muaj npoo) pwm, nrog rau txoj kev casting los cam khwb cia ciab, kom tau txais cov qauv siv quav ciab qub; Rov ua cov txheej txheem txheej thiab xuab zeb ntawm cov quav ciab, ua kom lub plhaub tawv thiab qhuav; Tom qab ntawd cov pwm sab hauv yog yaj kom tshem tawm cov quav ciab thiab tau txais cov kab noj hniav; Roasted shells kom txaus lub zog thiab breathability; Cov khoom siv hlau xav tau rau kev nchuav; Cov xuab zeb raug tshem tawm tom qab hulling, thiaj li tau txais cov khoom tiav tiav. Raws li kev xav tau ntawm precision casting khoom, kev kho cua sov thiab kev ua haujlwm txias yog nqa tawm.

 

1. Dab tsi yog precision casting ntawm stainless hlau

Hauv kev tsim cov khoom lag luam stainless hlau, thaum qee cov khoom muaj cov duab coj txawv txawv thiab tsis tuaj yeem tsim los ntawm kev khoov cov kav dej thiab lwm cov txheej txheem, txhawm rau tsim cov khoom zoo li cov khoom tsis zoo (hollow lossis khoom hauv), txheej txheem ntawm kev siv cov khoom siv quav ciab → ua cov xuab zeb. pwm → cov ntaub ntawv ua kua yog siv.

Qhov zoo: Nws tuaj yeem ua cov khoom sib txawv raws li cov qauv siv quav ciab sib txawv.

Disadvantages: qhov tseeb ntawm kev sib sau dawb paug yog tsis siab, thiab qhov roughness ntawm lub nto yog loj.

 

2. Precision casting txheej txheem
1. Ua pwm raws li cov khoom sib txawv. Cov pwm tau muab faib ua cov txheej txheem sab sauv thiab sab qis, uas ua tiav los ntawm cov txheej txheem zoo xws li tig, npaj, milling, etching, thiab hluav taws xob sparking. Cov duab thiab qhov loj ntawm lub qhov yog tib yam li ib nrab ntawm cov khoom. Vim hais tias cov wax tuag yog tsuas yog siv rau kev lag luam wax nias, cov khoom siv aluminium alloy uas tsis tshua muaj melting point, tsis tshua muaj hardness, tsawg yuav tsum tau, pheej yig dua nqi thiab lub teeb yuag yog xaiv raws li cov pwm.

2. Siv aluminium alloy moulds los tsim ntau tus qauv ntawm cov khoom siv hauv tsev. Nyob rau hauv ib txwm muaj xwm txheej, ib qho kev lag luam wax khoom core qauv tuaj yeem sib xws rau ib qho khoom dawb xwb.

3. Lub peripheral margin ntawm wax pwm yog refined, thiab ib tug plurality ntawm ib tug siv quav ciab qauv yog glued mus rau lub pre-npaj tuag (tseem hu ua pawg ntoo) tom qab deburring, thiab qhov tuag no kuj yog ib tug industrial wax khoom core qauv tsim. los ntawm wax molds. (Zoo li tsob ntoo)

4. Muaj ntau cov pwm pwm uas tau kho ntawm qhov tuag yog coated nrog cov kua nplaum thiab sib npaug nrog cov xuab zeb zoo (ib hom refractory xuab zeb, kub tsis kam, feem ntau silica xuab zeb). Cov xuab zeb hais me me thiab zoo, uas ua kom lub ntsej muag ntawm qhov khoob yog du li sai tau.

5. Cia cov wax pwm txau nrog ib txheej ntawm cov xuab zeb zoo kom qhuav ib txwm nyob ntawm chav tsev kub (lossis qhov kub thiab txias), tab sis nws tsis tuaj yeem cuam tshuam qhov kev hloov pauv ntawm cov pwm hauv cov quav ciab, thiab lub sijhawm huab cua qhuav yog nyob ntawm qhov nyuaj. ntawm cov khoom nws tus kheej, thiab lub sij hawm dav dav huab cua qhuav ntawm precision castings yog li ntawm 5-8 teev. 10. Ci xuab zeb plhaub Yuav kom cov xuab zeb plhaub ntawm cov xuab zeb waxed muaj zog thiab ruaj khov, ua ntej nchuav dej stainless hlau, cov xuab zeb plhaub yuav tsum tau ci, feem ntau yog kub heev (qhov kub yog li ntawm 1000 ゚) nyob rau hauv lub qhov cub.

Cov dej stainless hlau, uas tau yaj mus rau hauv cov kua hauv lub xeev ntawm qhov kub thiab txias, yog nchuav rau hauv cov xuab zeb dewaxed, thiab cov kua stainless hlau dej puv rau hauv qhov chaw uas cov wax pwm tau tsim kom txog thaum nws puv tag, nrog rau qhov nruab nrab tuag. .

Vim tias yuav muaj cov ntaub ntawv sib txawv ntawm cov khoom sib xyaw ua ke hauv boiler ntawm cov hlau tsis huv, lub Hoobkas yuav tsum tau xyuas qhov feem pua ​​ntawm cov ntaub ntawv. Nws yog tom qab ntawd kho raws li qhov xav tau proportions, xws li ntxiv cov ntsiab lus ntawm cov khoom kom ua tiav cov txiaj ntsig xav tau.

Tom qab cov kua dej stainless hlau txias txias thiab khov kho, txheej txheej ntawm cov xuab zeb plhaub tau tawg nrog kev pab los ntawm cov cuab yeej siv tshuab lossis cov neeg ua haujlwm, thiab cov khoom siv stainless hlau raug nthuav tawm, uas yog cov duab ntawm cov qauv siv quav ciab qub, uas yog, qhov yuav tsum tau blank. Tom qab ntawd lawv txiav thiab sib cais ib qho los ntawm ib qho thiab tom qab ntawd coarsely hauv av kom dhau los ua ib qho khoob

Kev tshuaj xyuas qhov khoob: Cov khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob

Ntxuav cov blanks: Cov khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khawm