1,SMC rwb thaiv tsevdaim ntawvkev taw qhia

SMC rwb thaiv tsevdaim ntawvyog molded los ntawm unsaturated polyester iav fiber reinforced laminate molded khoom nyob rau hauv ntau yam xim.Nws yog luv rau Sheet molding compound.Cov ntaub ntawv tseem ceeb yog GF (xov paj tshwj xeeb), UP (unsaturated resin), qis shrinkage additives, MD (filler) thiab ntau yam additives.Nws thawj zaug tshwm sim hauv Tebchaws Europe thaum ntxov xyoo 1960, thiab tau tsim nyob rau hauv Tebchaws Meskas thiab Nyij Pooj ib ncig ntawm 1965. Thaum kawg ntawm 80′s, peb lub teb chaws tau qhia txawv teb chaws SMC cov kab ntau lawm thiab kev siv tshuab ntau lawm.

2, Characteristics

SMC rwb thaiv tsev pawg thawj coj saib muaj zog txhua yam, nplaim retardant, to resistance yog thib ob rau UPM203;Arc kuj, dielectric zog thiab siab voltage kuj;Kev nqus dej tsawg, qhov ruaj khov, me me warpage thiab lwm yam ntxwv.SMC rwb thaiv tsev board khoom yog tsuas yog siv nyob rau hauv high, nruab nrab thiab tsawg voltage switchgear rwb thaiv tsev muab faib.SMC cov khoom siv sib xyaw ua haujlwm, cov tshuaj tshwj xeeb rau cov ntoo, steel, yas meter lub thawv yooj yim rau kev laus, yooj yim rau corrode, tsis zoo rwb thaiv tsev, txias tsis kam, tsis zoo, tsis zoo ntawm nplaim hluav taws xob tsis zoo, lub neej luv luv, cov khoom zoo ntawm iav fiber reinforced yas meter lub thawv, muaj qhov ua tau zoo ntawm cov dej tsis zoo, kev ua haujlwm corrosion, tiv thaiv hluav taws xob tsis zoo, tsis tas yuav tsum muaj cov xaim hauv av, zoo nkauj, muaj lub xauv ntawm kev tiv thaiv kev ruaj ntseg thiab kev sib khi, lub neej ua haujlwm ntev, SMC faib lub thawv / SMC meter box / SMC FRP meter lub thawv / SMC meter lub thawv yog dav siv nyob rau hauv kev hloov pauv ntawm lub zog hluav taws xob nyob deb nroog thiab lub zog hauv nroog.

3.SMC daim ntawv thov teb

Kev lag luam hluav taws xob: txhua yam hloov txee muab faib board, hauv ob sab phlu, rwb thaiv tsev, kev them nyiaj yug, arc npog, arc raj thiab ntau hom insulator,

Arc extinguisher, hu rau tus tuav, tsheb npav splint, lub cev muaj zog qhov hluav taws xob lub thawv, hluav taws xob ntsuas lub thawv, thiab lwm yam.

Kev lag luam tsheb: tsheb bumper, fender, spare tire bin, seat, instrument panel, dazzle board, etc.

Kev tsim kho kev lag luam: txhua yam ntawm lub tsev siab siab dej tank, chav dej huv ware, hniav board thiab lwm yam khoom.

Railway kev lag luam: teeb liab teeb, carriage qhov rais ncej, teeb liab lub thawv plhaub, thiab lwm yam.

Iv.Cov yam ntxwv thiab qhov zoo ntawm SMC cov khoom hauv molding auto parts kev lag luam

1, lub teeb yuag

Rau tib qhov chaw, qhov hnyav ntawm SMC cov khoom sib xyaw yog 20-30% sib dua li cov hlau, uas ua tau raws li qhov yuav tsum tau ua ntawm lub tsheb ua haujlwm kom txo tau qhov hnyav ntawm cov khoom thaum ua kom lub zog ntawm cov khoom.Nws yog ib qho khoom siv txuag hluav taws xob zoo tshaj plaws hauv kev lag luam tsheb. Tsis tas li ntawd, SMC Cheebtsam tsis tsuas yog txuag lub zog thiab kev siv hluav taws xob xwb, tab sis kuj pab txhawb kev txhim kho ib puag ncig.

2, kev ua tau zoo ntawm lub cev

Nws lub cev muaj zog tuaj yeem sib tw nrog cov ntaub ntawv hlau zoo tshaj plaws, thiab tseem tuaj yeem tswj cov khoom siv kho tshuab nyob rau hauv qhov kub thiab txias, yog cov thermoplastic feem ntau sib piv, yog cov khoom siv zoo tshaj plaws rau cov hlau yas.

3, qib siab ntawm kev sib koom ua ke tsim kev ywj pheej

SMC cov yam ntxwv ntawm cov khoom ntws thiab cov txheej txheem molding txiav txim siab tias ntau qhov chaw (xws li muab qhov chaw, cov khoom sib txuas, stiffeners, flanges thiab qhov, thiab lwm yam) tuaj yeem ua tiav ib zaug molding, tuaj yeem txo cov pwm, cuab yeej thiab vuam, sib dhos thiab lwm yam txheej txheem. , yog li kom txo tus nqi qis, tus nqi qis ntawm cov khoom ntim qis tuaj yeem pom tau.

4, corrosion kuj, zoo dabtsi yog khoov kuj, muaj kev ntseeg siab

SMC cov khoom nws tus kheej yog cov khoom siv tiv thaiv corrosion, yog li nws tsis tas yuav phosphating txhawm rau tiv thaiv kev xeb thiab txhim kho kev sib raug zoo, piv nrog cov hlau SMC phaj daim ntawv thov tuaj yeem txo cov nqi thiab txuag hluav taws xob.Rau cov khoom siv tsheb siv sab nraum zoov nyob rau hauv hnyav sab nraud

Hais txog, nws yog ib yam khoom tshwj xeeb.Piv nrog steel phaj thiab txhuas phaj, SMC phaj muaj kev tiv thaiv zoo rau kev cuam tshuam ntawm cov khoom txawv teb chaws thiab dents thiab dents rebound peev xwm.

5,zoo heev tshav kub tsis kam thiab txheej

SMC cov khoom lag luam muaj qhov ua kom sov zoo.SMC cov khoom tuaj yeem tswj qhov kev ruaj ntseg ntawm -50 ° C txog + 200 ° C tom qab tso tawm.Cov khoom siv SMC yog cov khoom tsim nyog tshaj plaws rau steel phaj txau tshuab, vim tias SMC muaj qhov sib xws thermal expansion rau hlau

Coefficient thiab kub tsis kam, tom qab txau cov khoom SMC tuaj yeem kho tau ntawm tib qhov cub kub li cov hlau txheej.Tsis tas li ntawd, SMC muaj cov txheej txheem kev hloov pauv tau zoo, txawm tias SMC pawg thawj coj tsis xav tau kev kho mob phosphating, tab sis yog tias txwv los ntawm cov txheej txheem tsim khoom qub, nws yuav tsum tau mus txog phosphating kev kho mob, SMC board kuj tuaj yeem ua tau raws li qhov yuav tsum tau ua ntawm qhov no, SMC qhov chaw tuaj yeem ua tau. tseem yuav ua tiav los ntawm electrophoresis txau (EDPO) system.