Sodium-based bentonite rau casting

Bentonite yog cov av nplaum tshwj xeeb nrog cov viscosity, nthuav dav, lubricity, nqus dej thiab thixotropy thiab lwm yam ntxwv, kev siv tau npog cov ntaub ntawv casting, metallurgical pellets, tshuaj coatings, drilling av nkos thiab lub teeb kev lag luam thiab kev ua liaj ua teb hauv ntau yam, tom qab ntawd vim nws qhov dav. siv, hu ua "universal av", daim ntawv no tsuas yog tham txog daim ntawv thov thiab lub luag haujlwm ntawm bentonite hauv casting.

Cov qauv tsim ntawm bentonite
Bentonite yog tsim los ntawm montmorillonite raws li nws cov qauv siv lead ua, vim hais tias nws cov cim crystal muaj zog adhesion tom qab dej nqus, yog li nws yog dav siv hauv casting xuab zeb, cov xuab zeb yog sib koom ua ke los tsim lub zog ntub thiab plasticity, thiab lub zog qhuav tom qab ziab.Tom qab bentonite qhuav lawm, nws cov cohesion tuaj yeem rov qab tau tom qab ntxiv dej.

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Kev siv cov bentonite hauv casting

Qhov zoo ntawm bentonite yog qhov tseem ceeb heev rau kev tsim cov castings hauv casting, thiab qhov zoo ntawm bentonite muaj kev cuam tshuam ze rau ntawm qhov chaw thiab sab hauv zoo ntawm castings.Kev siv cov bentonite zoo hauv kev ua haujlwm casting yuav ua rau muaj zog, toughness thiab huab cua permeability ntawm castings, txo cov dej ntsiab lus ntawm molding xuab zeb, zoo txhim kho nto tiav thiab raug ntawm castings, thiab daws cov teeb meem zoo nyob rau saum npoo ntawm cov xuab zeb. castings, xws li: xuab zeb ntxuav, xuab zeb inclusion, xuab zeb qhov, nplaum xuab zeb, pores, vau qhov thiab ib tug series ntawm tsis xws luag.Nyob rau hauv niaj hnub kev lag luam kev loj hlob sai, bentonite li av nplaum npaj casting molding xuab zeb tseem yog cov khoom siv molding nyiam hauv kev lag luam casting.

Bentonite muaj cov kev xav tau ntawm kev lag luam rau casting
Lub viscosity adhesion ntawm bentonite yog tus yuam sij rau ntsuas qhov zoo ntawm bentonite rau casting, uas yuav tsum tau siab purity ntawm montmorillonite, nplua particle loj (95% mus txog 200 mesh sieve), thiab kho cov txheej txheem sodium, thiaj li hais tias ib tug me me ntawm molding xuab zeb. tuaj yeem tau txais kev ntub dej compressive zog.

Lub luag haujlwm ntawm bentonite hauv casting

(1) Siv raws li casting molding xuab zeb binder
Bentonite muaj viscosity loj heev, siab plasticity, zoo zog, tsis tshua muaj nqi, thiab tuaj yeem ua rau casting molding xuab zeb sai sai.

(2) Ua kom cov plasticity ntawm castings
Siv los ua cov khoom siv xuab zeb binder, bentonite tuaj yeem txhim kho cov yas ntawm castings, thiab tuaj yeem tiv thaiv cov khoom tsis xws luag ntawm castings, xws li: tuaj yeem tiv thaiv cov xuab zeb suav nrog, caws pliav, pob poob, xuab zeb tawg.

(3) Zoo reusability thiab tsis tshua muaj nqi
Hauv kev xaiv cov qauv, peb pom zoo kom siv cov khoom siv dag zog sodium-based bentonite, vim tias cov ntsuas ntawm sodium-based bentonite muaj zog ntau dua li calcium-based bentonite, xws li: kub tsis kam thiab ruaj khov yog vim calcium-based bentonite.Yog li ntawd, txawm tias tom qab lub hnab sodium bentonite tau txias tag thiab qhuav ntawm qhov kub thiab txias, nws tseem muaj zog adhesion quab yuam thaum dej ntxiv rau lub sijhawm thib ob, thiab nws tseem tuaj yeem siv txuas ntxiv los ua cov xuab zeb casting, vim nws muaj zog reusability thiab tsis tshua muaj nqi, yog li sodium bentonite yog thawj zaug xaiv raws li cov khoom nyiam nyob rau hauv cov txheej txheem casting.

(4) Qhov ntau npaum li cas me me, thiab lub zog ntawm cov casting yog siab
Bentonite muaj zog adhesion thiab tsawg npaum li cas, ntxiv 5% high-zoo sodium-based bentonite rau cov xuab zeb casting tuaj yeem txo cov av nkos ntawm cov xuab zeb casting, tshwj xeeb tshaj yog qhov tshwm sim ntawm cov khoom nqus dej, tshauv thiab porosity hauv cov xuab zeb molding. txo raws li, thiab lub zog ntawm casting yuav zoo heev.

(5) Txhim kho cov zis thiab nyiaj txiag txiaj ntsig ntawm cov tuam txhab foundry
Thaum siv cov bentonite zoo los tsim cov castings, cov ntsiab lus bentonite zoo ntawm 5% ~ 6% hauv cov xuab zeb qub yog txaus, thiab 1% ~ 2% tuaj yeem ntxiv txhua zaus thaum sib tov.Txhua tuj ntawm cov khoom zoo bentonite tuaj yeem tsim 10 ~ 15 t castings ntawm cov khoom siv tshuab.
Zoo, daim ntawv thov thiab lub luag haujlwm ntawm bentonite hauv casting yog tag nrho cov qhia ntawm no, Kuv vam tias koj tuaj yeem xa mus rau nws thaum koj nkag siab bentonite, ntau lub hom phiaj tsis yog xim hlau av nplaum, hauv kev kawm tob.

Yav dhau los: Deodorant, bacteriostatic thiab plua plav-dawb cov khoom loj ntawm zeolite miv litter

Tom ntej: Thickening ntawm bentonite los ntawm trenchless drilling ntawm sodium-based calcium raws li piling

Sau koj cov lus ntawm no thiab xa tuaj rau peb