1. Muaj feem cuam tshuam
1.1 Sand mixing ratio
Thaum lub sij hawm siv cov xuab zeb resin, yuav tsum muaj cov txheej txheem ntawm kev hloov cov xuab zeb qub thiab tshiab, cov xuab zeb regenerated raug tshem tawm, thiab cov xuab zeb tshiab tau ntxiv, kom tag nrho cov xuab zeb tuaj yeem ua haujlwm ntxiv. Txawm li cas los xij, qhov kev faib ua feem ntawm cov xuab zeb sib tov yuav tsum tau tswj kom zoo, ntxiv ntau dhau, txawm hais tias qhov zoo ntawm cov xuab zeb molding zoo dua, tab sis qhov kev tsim dua tshiab ntawm cov xuab zeb qub yog txo, thiab cov xuab zeb cov khoom siv tau raug pov tseg. Bestech Machinery tau ua cov kev sim ntawm cov xuab zeb sib xyaw ntawm 1: 9, 2: 8, 3: 7, 4: 6, 5: 5, xuab zeb tshiab thiab lwm qhov sib npaug ntawm cov xuab zeb qub. Los ntawm qhov no, nws tuaj yeem txiav txim siab tias nws muaj txiaj ntsig zoo los kho cov xuab zeb sib xyaw ntawm tag nrho cov xuab zeb qub mus rau 1: 9, 2: 8, lossis txawm 3: 7. Tsis tsuas yog lub zog ntawm cov xuab zeb resin yog ob npaug, tab sis cov ntsiab lus ntawm cov resin tuaj yeem raug txo, uas yog qhov zoo rau qhov zoo ntawm qhov chaw. thiab tswj tus nqi.
1.2 Raw khoom viscosity
Nyob rau tib lub sijhawm, viscosity ntawm resin thiab curing tus neeg sawv cev txawv heev, thiab tus nqi ntws kuj yuav hloov. Lub viscosity ntawm raw cov ntaub ntawv sib txawv heev ntawm txawv foundries thiab txawm sib txawv batches. Yog li ntawd, kev hloov pauv ntawm viscosity ntawm cov khoom siv raw cuam tshuam rau qhov tseeb ntawm cov nyiaj ntxiv. Thaum hloov, thaum hloov viscosity, zaus ntawm lub twj tso kua mis yuav tsum tau kuaj xyuas kom txaus txaus.
1.3 Humidity
Thaum cov resin thiab tus neeg sawv cev kho tau raug cov tshuaj tiv thaiv polycondensation, dej yog precipitated, thiab nyob rau hauv cov ntaub ntawv ntawm high humidity, cov dej tsis yooj yim volatilized, ua rau tsis zoo permeability ntawm molding xuab zeb thiab txo lub zog. Rau qhov sib txawv ntawm cov av noo, txoj kev tshawb fawb pom tias nyob rau hauv cov av noo ntawm 93 feem pua, qhov sib txawv ntawm tensile zog ntawm 24h thiab 48h yog hais txog 0.3MPa. Nws tuaj yeem pom tias cov av feem ntau cuam tshuam rau hardness thiab permeability ntawm resin xuab zeb. Qhov no qhia lub foundry kom ntev lub sij hawm siv resin xuab zeb nyob rau hauv cov txheej txheem ntau lawm nyob rau hauv cov ntaub ntawv ntawm high humidity, thiaj li hais tias nws yog kiag li nyuaj thiab nkag mus.
1.4 Lub zog ntawm cov xuab zeb tsis muaj ci.
Ntau qhov chaw tsim khoom siv lub zog tensile raws li kev sim. Raws li lub zog kawg, qhov tshwm sim tuaj yeem tsuas yog tau tom qab 24 teev. Nws yog ib qho nyuaj rau coj qhov tseeb ntau lawm ntawm hnub, uas ua rau cov hauj lwm ntau lawm lag. Qhov no xav kom peb nrhiav txoj hauv kev sai los txiav txim lub zog. Bestech Machinery ua ke nrog cov foundry los ntawm ntau qhov kev ntsuam xyuas txhawm rau txheeb xyuas qhov muaj zog ntawm lub sijhawm sib txawv. Txoj kev tshawb nrhiav pom tias tom qab 2MPa, cov xuab zeb molding tau ua tiav tag nrho, thiab lub zog no tuaj yeem siv los kwv yees lub zog tensile 24H. Cov txiaj ntsig kev tshawb fawb pom tau tias lub zog kawg yog li 2.5 ~ 3 npaug ntawm qhov pib lub zog, thiab lub zog pib tsis hloov tom qab 8 teev ntawm cov xuab zeb sib tov, uas yuav luag sib npaug ntawm lub zog kawg.
1.5 hardness
Qhov saum npoo hardness ntawm pwm yog siab heev tom qab hardening ntawm tus kheej-hardening xuab zeb. Ntau cov foundries kov cov pwm thiab cov hauv paus ntsiab lus tom qab kho, xav thiab kwv yees nws cov nqi zog. Qhov tseeb, qhov peb xav tias tsuas yog hardness, tsis muaj zog. Nto hardness thiab pwm lub zog tsis yog tib lub tswvyim. Bestech Machinery kawm txog lub zog thiab hardness ntawm cov qauv los ntawm tamping, txheej-los ntawm-txheej compaction, thiab vibrating rooj vibrating, thiab pom tias tsis muaj teeb meem dab tsi ntawm molding txoj kev yuav tsis cuam tshuam rau hardness, qhov no qhia tau hais tias ntev npaum li cas cov pwm. tuaj yeem hardened, hardness siab, tab sis nws tsis sawv cev rau lub zog ntawm cov duab thiab cov tub ntxhais.
1.6 zog
Furan resin self-hardening xuab zeb muaj fluidity zoo, txawm tias nws tsis yog compacted, nws yuav ua rau nws tus kheej hardening. Txawm hais tias lub degree ntawm compaction tsis muaj kev cuam tshuam rau lub hardness, nws muaj feem xyuam rau lub zog. Lub zog ntawm lub vibrating rooj yog yuav luag tsis muaj compaction. Lub zog ntawm txheej-los-txheej compaction kuj zoo dua. Nyob rau hauv qhov tseeb ntau lawm, compactness thiab huab cua permeability yog contradictory. Peb yuav tsum faib nws. Muaj ntau lub tuam txhab siv cov txheej txheem step-by-step rau compaction. Qee lub ces kaum tus thawj coj, cov hlau txias thiab lwm txoj haujlwm yog compacted manually. Rau qee qhov tseem ceeb lossis cov uas raug ntxuav los ntawm cov hlau molten, 3D Vibration Table yuav tsum tau siv los xyuas kom meej cov pwm pwm. lub zog thiab txhim kho nto stability.
1.7 Sand kub
Qhov qis ntawm cov xuab zeb kub, lub sijhawm siv tau ntev dua, cov tshuaj tiv thaiv qeeb qeeb, tab sis qhov qis kawg ntawm lub zog. Nws yog qhov tsim nyog los tswj cov xuab zeb kub ntawm 20 ~ 30 degree, tsis tsuas yog qhov kawg lub zog siab, tab sis kuj yog lub sijhawm siv tau nruab nrab, uas yooj yim los tswj cov hardening ceev hauv txhua lub caij. Ntau qhov kev paub tau pom tias nws muaj txiaj ntsig zoo rau cov cua sov hlau pwm los yog cov resins nyob rau lub caij ntuj no, uas ua kom lub zog ceev ntawm pwm thiab lub sij hawm tso pwm. Nyob rau lub caij ntuj sov thaum lub ambient kub siab, ntau lawm txoj hauj lwm yog ceev, thiab cov xuab zeb kub yog ib qho nyuaj rau txo, thiaj li yuav tswj tau lub sij hawm, nce qhov feem pua ntawm cov xuab zeb sib tov, thiab sib tov ib feem ntawm curing agent.
2. Bestech Machinery pom zoo
2.1 Cov xuab zeb sib tov yuav tsum yog 1: 9, 2: 8 thiab 3: 7.
2.2 Thaum cov khoom siv raw ntawm cov chaw tsim khoom sib txawv thiab cov khoom siv hloov pauv, cov resin thiab curing agent twj tso kua mis yuav tsum tau ntsuas.
2.3 Nyob rau hauv cov ntaub ntawv ntawm high humidity, lub sij hawm siv ntawm resin xuab zeb yuav tsum tau muab ncua kom tsim nyog kom nws tag nrho nyuaj.
2.4 Lub hardness ntawm qhov saum npoo thiab lub zog ntawm cov pwm tsis yog tib lub tswv yim, thiab lub zog ntawm cov pwm thiab cov xuab zeb tseem tsis tuaj yeem txiav txim siab los ntawm qhov hardness.
2.5 Lub degree ntawm compaction pom tseeb txhim kho lub zog ntawm resin xuab zeb, tab sis nws yuav cuam tshuam rau huab cua permeability. Cov txheej txheem sib txawv tuaj yeem xaiv tau raws li qhov xav tau.
2.6 Cov xuab zeb kub yuav tsum tau tswj ntawm 20 ~ 30 degree. Thaum lub caij ntuj no, xyuam xim rau cua sov cov pwm hlau thiab cob. Nyob rau lub caij ntuj sov, koj tuaj yeem kho tus neeg sawv cev kho lossis siv ob lub twj tso kua mis los kho cov tawv tawv ceev ntawm cov xuab zeb resin.
2.7 Nws raug nquahu kom siv cov khoom siv tawv tawv rau cov xuab zeb rov ua dua qub, uas tuaj yeem tshem tawm impurities ntawm cov xuab zeb qub.