Cov txheej txheem moulding yog ib lub thermoplastic txheej txheej txheej uas siv ib qho kev sib hloov pwm thiab cua sov kom pom cov khoom siv sab hauv ntawm cov khoom siv puab, thaum kawg ua cov khoom lag luam hollow. Cov txheej txheem no tau siv dav nyob rau hauv lub nkoj tsim khoom vim nws qhov kev tsim kho siab, muaj peev xwm tsim cov qauv loj thiab muaj kev sib tw loj. Rotomolded nkoj feem feem ntau yog suav nrog hauv cov khoom siv hull, buoys, thiab cab hniav bulkheads. Qhov zoo ntawm cov chaw no ncaj ncaj cuam tshuam cuam tshuam kev siv durability, lub teeb yuag, thiab tag nrho cov kev ua tau zoo ntawm lub nkoj. Cov ntawv sau no qhia txog cov ntsiab lus moulding txheej txheem, cov kev qhia tseem ceeb, thiab kev ua kom zoo rau lub nkoj rotomolded hauv cov ntawv thov.
I. Cov ntsiab cai thiab cov txheej txheem ntws ntawm rotomolding
Cov tub ntxhais ntawm rotomolding yog siv cov lus tsa suab ntawm cov pwm (feem ntau yog kev sib txuas yaj thiab ua ke} ntev cov hmoov nplej lossis ua rau lawv cov khoom siv cua sov thiab ua rau cov khoom siv kub. Tom qab ntawd cov khoom kawg yog muab tso tawm los ntawm pwm tom qab txias. Cov txheej txheem kev ntws nrog cov kauj ruam hauv qab no:
Cov khoom siv raw kev npaj: roo - mouldity nkoj feem ntau, polype {-} 2}} 2} 2}}}) txuas nrog polyethylene (xlpe). Cov ntaub ntawv raw yuav tsum tau ua ntej -} qhuav thiab hauv av rau ib qho loj me me kom ntseeg tau tias tsis zoo me me.
Pwm thauj khoom thiab cov sib khi: cov khoom siv yas yas tau thauj mus rau hauv cov khoom siv preheated nrog bolts lossis clams kom tiv thaiv kom tsis txhob to thaum cua sov.
Cua sov thiab kev sib hloov theem: Cov pwm yog muab tso rau hauv qhov chaw sov lossis tig los ua ke ib sab ntawm ob lub axes (kab rov tav thiab ntsug). Qhov ntsuas kub yog feem ntau tswj nyob rau hauv thaj tsam ntawm 200-300 degree, maj mam melting cov yas thiab sib sau ua cov txheej txheem sib dhos. Txoj kev sib hloov ceev thiab ntev thaum theem no ncaj qha cuam tshuam rau ntawm phab ntsa tuab faib ntawm cov khoom.
Txias thiab ua tiav: tom qab melting ua tiav, cov pwm txav mus rau thaj chaw txias (nrog cov dej txias txias thaum txuas ntxiv los tiv thaiv kev nyuaj siab.
Txheeb thiab tshaj tawm {{{- kev ua: tom qab lub tshuab ntsuas kub tuaj kom muaj kev nyab xeeb, tsis muaj dab tsi cov pwm. Yog tias tsim nyog, luas cov npoo ntawm ib feem lossis nruab cov khoom sib txuas ntxiv (xws li tav lossis txuas cov flanges).
Ii. TSEEM CEEB TSHUAJ TAWM NTAWM ROTO - moulded nkoj
Txawm hais tias muaj qhov tseem ceeb ntawm roto - moulding, nws daim ntawv thov hauv kev lag luam marine tseem ntsib cov teeb meem kev nyuaj hauv qab no:
Loj pwm tsim thiab cov thermal sib npaug tswj: roto - matter - r ntev buoys) thiab nyias phab ntsa. Moulds yuav tsum tau ua los ntawm lub teeb liab txhuas (xws li txhuas alloy) kom txo qis hauv inertia. Sab hauv cua sov chanels yuav tsum tau ua kom zoo rau qhov kub thiab txias ua ke thiab zam kev ua haujlwm hauv zos overheating lossis undermelting.
Cov Khoom Siv Khoom Sib Raug Zoo: Cov ntsev ntau, av noo, thiab UTS} Mould tsis kam, thiab ntev - term kuj tsis kam. Piv txwv li, ntxiv cov pa roj dub lossis UV nqus mus rau HDPE tuaj yeem txuas ntxiv nws lub neej kev pabcuam sab nraud.
Cov Txheej Txheem Txheej Txheem nyuaj: rotomolding struggles kom ncaj qha pwm cov txheej txheem lossis cov tshuab ua kom muaj kev sib koom ua ke, uas cov chaw siab dua ntawm cov kev sib dhos ua ntej.
III. Txheej txheem ua kom zoo thiab kev lag luam ua piv txwv
Txhawm rau txhim kho cov tshuaj moulding zoo thiab qhov zoo ntawm lub nkoj rotomrolded, tam sim no thev naus laus zis txhim kho rau cov chaw hauv qab no:
Multi {{0} Kab noj hniav pwm thiab tsim cov khoom lag luam ntau ntxiv: ua ke nrog cov khoom siv hluav taws xob, tuaj yeem tsim kho cov khoom lag luam loj, tuaj yeem ua rau cov qauv tsim tawm ntawm cov qauv buoys lossis cabin modules.
Cov Kev Siv Hluav Taws Xob: Sau cov iav fiber ntau (gf) lossis nanofillers (xws li montmorillonite tuaj yeem txhim kho cov khoom lag luam tawv nqaij thiab hnav tsis zoo, ua rau lawv tsim nyog rau cov tshuab ntim khoom siv rau cov neeg kho tshuab thauj.
Digital Simulation Technology: Finite Elite Kev Tshawb Xyuas (fea) yog siv los kwv yees cov qauv kev tsim qauv thiab ua kom pom cov pwm txheem thiab cov nqi sib tw.
Kev tshawb nrhiav cov ntaub ntawv tau qhia tias Polyethylene Buoys rau cov txheej txheem fibing yog tshaj 30% kev ua haujlwm fiberglass yog tshaj li 30% thiab lawv cov khoom siv fiberglass, thiab lawv cov khoom lag luam corrosion, thiab lawv txoj kev tawm tsam corrosion, thiab lawv txoj kev tawm tsam corrosion, thiab lawv txoj kev tawm tsam corrosion, thiab lawv txoj kev tawm tsam corrosion, thiab lawv txoj kev tawm tsam corrosion, thiab lawv txoj kev tawm tsam corrosion, thiab lawv txoj kev tawm tsam corrosion, thiab lawv txoj kev tawm tsam corrosion, thiab lawv cov khoom siv fiberglass ntau dua li 15 xyoos. Tsis tas li ntawd, lub seamless, ib - daim ci ci tag nrho tshem tawm cov kev pheej hmoo ntawm weld tought, txhim kho nkoj kev nyab xeeb.
Lub roto - moulding txheej txheem rau nkoj seem, nrog nws cov kev ua tau zoo thiab corrosion tsis tau ntawm cov nkoj niaj hnub. Nyob rau yav tom ntej, nrog rau hauv - Qhov tob ua ke kev tshawb fawb, thiab cov kev ua haujlwm digital, muab cov kev lag luam engineing, muab cov kev lag luam engineing, muab cov kev lag luam engineing, muab cov kev lag luam engineing, muab cov kev lag luam engineing, muab cov kev lag luam engineing, muab cov kev lag luam engineing, muab cov kev lag luam engineing, muab cov kev lag luam engineing, muab cov kev lag luam engineing, muab cov kev lag luam engineing, muab cov kev lag luam engineing, muab cov kev lag luam engineing, muab cov kev lag luam engineing, muab cov kev lag luam engineing, muab cov kev lag luam engineing, muab cov kev lag luam engineing, muab cov kev lag luam engine}, muab cov kev lag luam engineing, muab cov kev lag luam engineing, muab cov kev lag luam engineing, muab cov kev lag luam thiab kev lag luam zoo dua thiab cov kev ua kom zoo ib puag ncig.
