Kev sib xyaw thiab cov ntawv thov ntawm cov ntawv Moulding compound

Ntawv Molding cov khoom sib txuas yog hais txog cov khoom lag luam polyester unsalurated zoo li lub cev tseem ceeb, thickener, thickener, thickener, thickener, thiab lwm yam moulding compound them nrog polyethylene (PE) zaj duab xis. Cov ntawv no feem ntau piav qhia luv luv txog cov muaj pes tsawg leeg thiab kev faib tawm ntawm SMC.

Ntawv Molding cov khoom lag luam

SMC yog tsim cov khoom lag luam polyester tsis muaj zog, tus neeg sawv cev ntawm tus neeg sawv cev, muab tub lim, cov neeg sawv cev, tso tawm cov fiber ntau, thiab polymerization inhibitor. Ntawm lawv, thawj plaub pawg tsuas yog muab cov qauv ua haujlwm rau cov khoom lag luam thiab ua kom muaj zog ntxiv. Cov plaub ntu kawg yog feem ntau rau cov yam ntxwv ntawm kev nce viscosity, corrosion tsis kam, rwb thaiv tsev, thiab cov qauv ruaj khov ntawm cov khoom.

1. Cov khoom lag luam zoo polyester thiab cov neeg sawv cev ntawm cov neeg sawv cev tseem ceeb ntawm SMC. Cov resaturated polyester yog feem ntau polycondensed ntawm unsaturated dicarboxylic acids (lossis cov kua txob dicarboxylic (lossis cov tshuaj lom), thiab polyols. Nws muaj qee yam khoom siv cov khoom siv thiab lub zog, thiab lub zog sab hauv yog ib yam. Tus neeg sawv cev hla tsuas yog styrene. Tom qab ob tug raug txuas nrog, lawv yog cov ntaub ntawv tseem ceeb rau kev kho cov khoom siv ntawm cov khoom, uas ua lub luag haujlwm ntawm kev sib txuas, kev txhawb nqa, kis tau sib npaug, thiab kev tiv thaiv.

2. Tus pib ua rau lub cob thiab crosslinker los kho thiab daim ntawv nyob rau hauv lub resin paste theem. Nws txoj haujlwm yog ua kom cov khoom cob thiab ob txoj kev sib khi ua ke hauv kev sib txuas nrog tus pob zeb uas cov SMC tuaj yeem ua kom ruaj khov thiab tsim hauv cov pwm kab noj hniav.

3. Tus muab tub lim dej ntau dua ib feem peb ntawm daim ntawv molding compound thiab tuaj yeem hloov kho cov viscing. Nws feem ntau yuav tsum muaj cov yam ntxwv ntawm kev nqus tsis tshua muaj lub ntiajteb txawj nqus, tsawg dua roj adsorption tus nqi, tsawg dua cov ntxeem tau, corrosion tsis kam, thiab tus nqi qis. Cov khoom siv sib xyaw ua ke yog CACO3, AL (Oh) 3, thiab lwm yam.

4. Thickeners muab SMC lub siab-viscosity, cov khoom uas tsis nplaum tsis muaj khoom. Kev npaj ntawm daim ntawv thiab bulk moulding tebchaw yuav tsum muaj lub viscosity nyob ntawm lub resin los pab txhawb kev impregnation ntawm cov iav fiber thiab muab tub lim los ntawm cov cob. Thiab compression molding yuav tsum muaj kev viscosity ntau dua. Yog li ntawd, nws yog ib qho yuav tsum tau ntxiv cov tuab ua ntej cov txheej txheem moulding los hloov cov iav fiber ntau impregrosity uas tsis nplaum.

5. Tus neeg sawv cev tso tawm cov ntawv moulding compound los ntawm muaj kev sib txuam nrog cov hlau pwm nto. Tus neeg sawv cev tso tawm tuaj yeem tiv thaiv cov kab txhab nyiaj tsis tau los ntawm kev sib cuam tshuam nrog cov nplaim taws ntawm cov txheej txheem yas ntawm cov khaub noom yas. Feem ntau cov pilty acids ntev lossis ntsev cov sawv cev los ntawm zinc stearate. Kev siv ntau dhau yuav yooj yim txo cov khoom ua tau zoo ntawm cov khoom. Qhov kev siv nyiaj dav dav rau 1 ~ 3% ntawm tag nrho cov khoom lag luam kom ntseeg tau tias qhov zoo ntawm cov khoom.

6. Cov fibers tuaj yeem txhim kho cov corrosion tsis kam thiab rawv thaiv cov khoom ntawm SMC. Daim Ntawv Moulding compound feem ntau xaiv cov iav tws iav fiber ntau Mats ua cov khoom siv lub zog. Kev siv ntau dhau yuav ua rau cov khoom muag muag dhau fluffy, thiab kev siv cov tshuaj me me me me yuav tsis muaj qhov pom tseeb ntawm cov khoom. Qhov kev siv dav dav yog kwv yees li 20%. Nyob rau hauv txoj kev no, cov khoom lag luam tuaj yeem ntsib ob qho txheej txheem ntawm extrusion molding thiab compression moulding thiab compression moulding.

7. Inhibitor tau nce qhov kev ruaj ntseg ntawm SMC thiab sijhawm ntev ntev lub sijhawm khaws cia. Txij li thaum tus thawj pib siv tau qeeb, ua rau cov khoom siv rov qab los, polymerization inhibitor) tuaj yeem qeeb qhov kev ua kom nrawm nrawm thiab ntev ntev lub sijhawm. Inhibitors feem ntau yog benzoquinones thiab polyvalent phenolic tebchaw.

Daim ntawv thov ntawm cov ntawv Moulding cov khoom lag luam

SMC muaj qhov zoo ntawm kev ua hluav taws xob zoo, lub teeb ci, thiab lwm yam khoom siv tau sib piv rau qee cov ntaub ntawv hlau. Yog li ntawd, nws yog dav siv nyob rau hauv yim daim teb xws li lub tsheb kev lag luam, cov khoom siv hluav taws xob, thiab kev sib txuas lus (rooj 1).

Ntawm lawv, nyob rau hauv thaum ntxov theem, nws tau tsuas yog siv nyob rau hauv daim ntawv ntawm insulating cov laug cam nyob rau hauv cov chaw tsim kho, khoom siv hluav taws xob, thiab thev naus laus zis yog cov paub tab. Nws tau siv hauv kev lag luam tsheb los hloov ib feem ntawm cov hlau thiab cov ntaub ntawv txhuas aluminium ntawm lub cev txo qhov hnyav ntawm lub tsheb.

Nyob rau hauv keeb kwm ntawm lub zog tam sim no txuag thiab emission txo thiab txhawb nqa cov khoom siv hluav taws xob tshiab txuas ntxiv mus rau lub tsho loj thiab zoo. Txog tam sim no, daim ntawv thov ntawm SMC cov ntaub ntawv tuaj yeem pom txhua qhov chaw hauv lub neej txhua hnub. Nws tau xav txog hauv wireless kev sib txuas lus, pom zoo cov khoom hluav taws xob, cov khoom siv rwb thaiv tsev av, chav dej, thiab cov chaw nrawm nrawm.

Cov lus 1 yim cov ntawv thov loj thiab cov teb seem ntawm cov ntaub ntawv SMC

Lub ntsiab

Cov tsis tau lav Polyester Retin, tus neeg sawv cev ntawm tus neeg saib xyuas, pib rau hauv daim ntawv molding muab cov khoom lag luam thiab nce lub zog. Thickener, Tso Tus Neeg Sawv Cev, Cov Fiber, thiab Polymerization Inhibitor Ad Viscosity, Corrosion Kuj, Rwb thaiv tsev, thiab cov qauv kev ruaj ntseg rau cov khoom. Xws cov khoom tau raug thov rau hauv yim lub teb loj nrog rau cov tsheb lag luam thiab tsheb nqaj hlau. Hauv qab cov keeb kwm yav dhau los ntawm lub zog txuag, kev tiv thaiv ib puag ncig, thiab kev lag luam qis rau SMC cov ntaub ntawv vim lawv yuav tsum tau ua rau lawv txoj kev qig. Qhov twg yog qhov tseem ceeb tsav tsheb rau kev txhim kho SMC thev naus laus zis.

Siv tusPuas Siv Cov Xovxwm Hydraulic Tshuabmus nias tus ntawv moulding cov khoom lag luam. Zhengxi yog tus kws tshaj lijCov xovxwm hydraulic nyob hauv Suav teb, muab cov presses zoo. Tiv tauj peb kom tau txais cov ntsiab lus.