KEV LOM ZEM CASTING FOUNDRY

OEM Mechanical thiab Kev Lag Luam Kev Lag Luam

Dab Tsi Yog Cov Plhaub Pwm Casting

Lub plhaub pwm castingyog cov txheej txheem uas cov xuab zeb sib xyaw nrog cov thermosetting resin tau tso cai rau kom nkag mus rau hauv kev sib cuag nrog lub phaj hlau ua kom sov, kom lub plhaub nyias thiab muaj zog ntawm cov pwm yog tsim nyob ib puag ncig pattem. Tom qab ntawd lub plhaub tawm ntawm cov qauv thiab tus tiv thiab rub tau raug muab tshem tawm ua ke thiab khaws cia hauv daim ntaub nrog cov khoom tsim nyog rov qab thiab cov hlau molten tau nchuav mus rau hauv cov pwm.

Feem ntau, cov xuab zeb qhuav thiab zoo (90 rau 140 GFN) uas tau ua tiav dawb ntawm cov av nplaum yog siv rau kev npaj lub plhaub molding xuab zeb. Lub noob nplej loj yuav tau xaiv yog nyob ntawm qhov ua tiav ntawm qhov xav tau ntawm lub casting. Txhawm dhau ib qhov loj ntawm cov noob txhuv yuav tsum tau muaj cov nuj nqis loj, uas ua rau lub qe muaj nqi.

Cov hluavtaws resins siv nyob rau hauv plhaub molding yog qhov tseem ceeb thermosetting resins, uas tau ua kom tawv tawv tsis ua haujlwm los ntawm kev ua kom sov. Cov resins siv feem ntau yog cov phenol formaldehyde resins. Ua ke nrog cov xuab zeb, lawv muaj lub zog zoo heev thiab tiv taus tshav kub. Cov phenolic resins siv nyob rau hauv plhaub moulding feem ntau yog ntawm ob theem hom, uas yog, cov ntxeem tau muaj phenol ntau dhau thiab ua zoo li cov khoom siv thermoplastic. Thaum lub sijhawm txheej nrog cov xuab zeb txig yog ua ke nrog cov tshuaj tiv thaiv xws li hexa methylene tetramine (hexa) hauv kev faib ua feem ntawm kwv yees li 14 txog 16% thiaj li tsim cov qauv thermosetting. Kev ntsuas kub rau cov no yuav nyob ib puag ncig 150 C thiab lub sijhawm xav tau yog 50 txog 60 vib nas this.

shell mould casting
coated sand mold for casting

 Qhov zoo ntawm Plhaub Mould Casting Txheej Txheem

1. Lub plhaub-pwm ua haujlwm feem ntau pom meej meej ntau dua li cov txhab castings. Nws yog qhov ua tau kom tau txais kev kam rau ntawm +0.25 hli rau steel castings thiab +0. 35 hli rau grey cam hlau ua kom raws li cov kev ua haujlwm ib txwm muaj. Cov xwm txheej ze ze tiv thaiv lub plhaub pwm, ib tus tuaj yeem tau txais nws nyob hauv thaj tsam +0.03 txog +0.13 hli rau cov ntawv thov tshwj xeeb.
2. Daim nplaim ntsej muag tau tau hauv lub plhaub nrum. Qhov no feem ntau tau ua tiav los ntawm cov ntsuas qhov me me tau siv. Qhov ntau hom ntawm roughness yog ntawm kev txiav txim ntawm 3 rau 6 mircrons.
3. Cov ntawv txiav cov plaub hau, uas qis dua li cov xuab zeb castings, yuav tsum muaj nyob rau hauv plhaub pwm. Qhov kev txo qis hauv cov kais ces kaum yuav yog 50 txog 75%, uas xav tias yuav txuag cov khoom siv thiab cov nqi machining txuas ntxiv.
4. Qee zaum, tshwj xeeb cov xaum yuav raug tshem tawm hauv plhaub moulding. Txij li cov xuab zeb muaj qhov siab zog cov pwm tuaj yeem tsim los ntawm cov yam ntxwv uas muaj kab noj hauv sab hauv tuaj yeem tsim ncaj qha nrog kev xav tau ntawm plhaub cores.
5. Tsis tas li, qee qhov seem me me (txog 0.25 hli) ntawm hom huab cua-cua txias lub tog raj kheej tuaj yeem nkag tau yooj yim los ntawm lub plhaub moulding vim tias lub zog siab dua ntawm cov xuab zeb siv rau kev txhaj tshuaj molding.
6. Kev tso cai ntawm lub plhaub yog qhov siab thiab yog li tsis muaj cov pa pa tawm.
7. Tsawg heev ntawm cov xuab zeb xav tau siv.
8. Kev siv tshuab yog tau yooj yim vim tias kev ua cov txheej txheem yooj yim koom nrog plhaub moulding.

 

Cov Kev Txwv ntawm Plhaub Mould Casting Txheej Txheem

1. Cov pattens kim heev thiab yog li kev lag luam tsuas yog siv rau hauv kev tsim khoom loj. Hauv daim ntawv thov raug, lub plhaub molding ua kev lag luam dua li xuab zeb molding yog tias cov khoom tsim tawm yuav tsum siab dua 15000 daim vim tias tus qauv siab dua.
2. Qhov loj ntawm cov nrum siv tau los ntawm plhaub moulding yog txwv. Feem ntau, kev ua kom cov hnyav uas hnyav txog 200 kg tuaj yeem ua tau, txawm hais tias qhov ntau thiab tsawg dua, cov neeg ua yeeb ntau li hnyav txog 450 kg yog ua.
3. Cov duab nrawm tsis tuaj yeem txais.
4. Cov khoom siv ntau cov khoom siv ntxiv yog xav tau los tswj lub plhaub pwm xws li cov uas yuav tsum tau ua rau cov qauv hlau ua kom sov.

coated shell mold for casting
ductile iron castings

Sijhawm Post: Dec-25-2020