Coated xuab zeb casting txheej txheem yog dav siv nyob rau hauv automotive xyaw, diesel xyaw, hydraulic qhov chaw thiab lwm yam lag luam, tshwj xeeb tshaj yog rau complex nyias-walled precision cam khwb cia hlau qhov chaw (xws li automotive cav thaiv, lub tog raj kheej taub hau, thiab lwm yam) thiab siab yuav tsum tau ntawm zus tau tej cov khoom. cam khwb cia hlau qhov chaw (xws li cov thawv ntim thiab tsheb ciav hlau nres tsis zoo, thiab lwm yam). Tsis tas li ntawd, cov xuab zeb coated kuj tseem siv tau rau hauv silicone hnyav peev casting los daws qhov teeb meem ntawm cov xuab zeb tshem tawm ntawm lub plhaub los ntawm kev txhim kho lub cev qhuav dej ntawm cov tubular los yog cov khoom refractory txheej txheej tsim nyob rau hauv lub puab kab noj hniav.
Coated xuab zeb muaj kev ua tau zoo, zoo xuab zeb sib sau, meej contours, siab qhov tseeb ntawm castings ua los ntawm coated xuab zeb hom, zoo nto zoo. Coated xuab zeb xuab zeb hom feem ntau tsuas yog kaum tawm millimeters, pouring resin binder tuaj yeem hlawv tag nrho, yog li nws cov phenol emissions dawb piv nrog rau lwm cov xuab zeb resin yam tsawg kawg, nrog rau lub teb chaws txoj kev xav txog tej teeb meem ib puag ncig, coated xuab zeb casting txheej txheem kuj tau txais. ntau thiab ntau xim.
Lub hauv paus ntsiab lus ntawm cov xuab zeb casting txheej txheem yog los npog cov npoo ntawm cov xuab zeb nrog cov khoom siv zaj duab xis, thiab ua kom cov resin yaj los ntawm cua sov, thiab tom qab ntawd ua rau cov xuab zeb thiab resin fusion nyob rau hauv qhov kev txiav txim ntawm sab nraud quab yuam los tsim ntau yam qauv uas. neeg xav tau, thiab ces hlau pouring los ua castings.
Coated xuab zeb casting txheej txheem muaj cov hauv qab no zoo:
- Tus nqi qis:tus nqi peev tsawg, tus nqi tsim khoom tsawg, kev siv hluav taws xob tsawg.
- Cov txheej txheem yooj yim, kev ua haujlwm siab ntau lawm:kev siv cov roj uas tsis tshua muaj siab yuav raug tshuab rau hauv cov kab noj hniav ntawm cov yeeb yaj kiab xuab zeb, hluav taws xob cua sov raj cua sov ua kom sov, demoulding los ua lub plhaub, kev sib xyaw ua ke ntawm cov dej tuaj yeem nqa tawm.
- Cov txheej txheem siab tso tawm tus nqi thiab cov khoom tsim nyog tus nqi:siab piv ntawm hlau xuab zeb, txuag ntau cov xuab zeb, cov txheej txheem tso zis tuaj yeem ncav cuag ntau dua 75%.
- Tsawg zog siv zog thiab ib puag ncig tsim khoom zoo dua:dispersibility ntawm mulberry xuab zeb yog zoo, thiab nws yuav dispersed los ntawm nws tus kheej tom qab pouring, thiab tu ntawm castings yog yooj yim.
- Zaj duab xis xuab zeb tuaj yeem hloov kho kom zoo:tuaj yeem siv tau ntev, kev npaj ntawm lub plhaub tuaj yeem khaws cia rau lub sijhawm ntev, nyob rau hauv qhov kub thiab txias ib puag ncig tsis tshua muaj kev cuam tshuam.
Nyob rau hauv cov txheej txheem coated xuab zeb casting, ntau yam tsis xws luag xws li shelling, hom (core) nto loosening, hom (core) deformation, tawg, core nkag, casting porosity, casting xuab zeb sticking, casting internal shrinkage thiab casting defects.
Coated xuab zeb casting ntau yam tsis xws luag thiab ua rau yog:
- Shelling:pwm tsim tsis tsim nyog, tsis sib npaug ntawm lub thawv kub, tsis tshua muaj melting point ntawm coated xuab zeb, qeeb curing ceev.
- Hom (core) nto xoob:core siab yog siab dhau los yog qis dhau, cov pwm tso tawm tsis du, tsis muaj dej tsis zoo lossis tsis zoo permeability ntawm cov xuab zeb coated.
- Hom (core) deformation, tawg:tsis sib npaug ntawm cov pwm, qhov sib txawv loj ntawm cov phab ntsa tuab ntawm cov tub ntxhais, cov kev ua haujlwm tsis zoo ntawm cov xuab zeb coated.
- Core nkag:tsis tshua muaj zog hauv zos los yog xoob xuab zeb core, nyias crust thickness.
- Casting porosity:cov tub ntxhais tso tawm tsis yog du, cov resin sand gas tiam yog loj los yog cov roj tiam ceev tsis tsim nyog.
- Cov xuab zeb nplaum hauv casting:Tsawg SiO2 cov ntsiab lus ntawm cov xuab zeb qub, qhov saum npoo ntawm cov tub ntxhais tsis ntom.
- Internal shrinkage ntawm castings:Thaum tshav kub kub generated los ntawm qhov kub ntawm cov resin nyob rau hauv coated xuab zeb nyob rau hauv high kub slows down lub solidification ntawm molten hlau.
- Tsis zoo casting nto:phenolic resin tsim cov pa roj carbon ci ntsa iab nyob rau saum npoo ntawm ferrofluid ntawm qhov kub thiab txias, uas ua rau wrinkles ntawm qhov chaw casting thaum lub sij hawm solidification.
Kev daws teeb meem
- Kev tsim kho:Txhim kho cov qauv ntawm pwm, ua kom qhov kub thiab txias sib xws; xaiv cov resin nrog siab melting point, ceev curing ceev thiab siab thermal zog.
- Looseness ntawm qhov chaw ntawm pwm (core):xaiv qhov tsim nyog txhaj tshuaj, txhim kho cov pa tawm kom tiv thaiv huab cua tuav; siv cov zaj duab xis-coated xuab zeb nrog zoo fluidity thiab huab cua permeability.
- Hom (core) deformation, tawg:txhim kho cov qauv ntawm cov pwm, kom qhov kub thiab txias faib yog uniform; kev siv molding tais los khaws cov xuab zeb core; kev siv curing shrinkage ntawm me me resin.
- Core piercing:Kho cov xuab zeb txhaj tshuaj; txhim kho lub tso pa tawm; txhim kho cov qauv pwm kom qhov kub thiab txias faib yog txawm.
- Cov porosity ntawm castings:txhim kho qhov tso pa tawm kom txhim kho cov pa tawm; xaiv cov xuab zeb qub nrog siab concentration ntawm grain zoo los yog thicker; siv low-gassing coated xuab zeb.
- Cov xuab zeb nplaum hauv castings:kho lub siab ntawm cov xuab zeb txhaj tshuaj, txhim kho qhov tso tawm ntawm cov tub ntxhais lub thawv, ua rau saum npoo ntawm cov xuab zeb core denser; siv kub resistant zaj duab xis xuab zeb los yog zirconium xuab zeb zaj duab xis xuab zeb.
-Shrinkage ntawm castings:Txais radical txias hom coated xuab zeb; tso hlau txias rau hauv lub plhaub tseem ceeb.
- Tsis zoo casting nto:ntxiv txog 2% ntawm qhov loj ntawm cov hlau oxide hmoov, siv cov thermal conductivity ntawm cov xuab zeb qub; plhaub core nto txhuam xim; ntxiv cov khoom siv tshwj xeeb hauv cov xuab zeb zaj duab xis.
Los ntawm cov kev ntsuas saum toj no, qhov tsis xws luag hauv Coated xuab zeb casting txheej txheem tuaj yeem tiv thaiv tau zoo thiab daws tau los txhim kho qhov zoo ntawm castings thiab ntau lawm efficiency.
CHINA WELONG muaj cov cuab yeej tsim khoom thiab cov cuab yeej siv siab heev, thiab tau cog lus los muab cov neeg siv khoom zoo, siab precision casting daws teeb meem. Peb cov txheej txheem Coated xuab zeb casting muaj qhov zoo ntawm tus nqi qis, kev ua haujlwm siab, kev tiv thaiv ib puag ncig thiab kev txuag hluav taws xob, thiab tau siv dav hauv ntau lub lag luam, xws li tsheb, tshuab thiab hluav taws xob. Yog xav paub ntxiv, thov hu rau kuv ntawmtammy@welongpost.comthiab kuv yuav zoo siab teb koj cov lus nug.
