xov xwm

1. Tes Lay-up Molding

Tes nteg-up molding yog txoj hauv kev zoo tshaj plaws rau kev tsim fiberglass-reinforced yas (FRP) flanges. Cov txheej txheem no suav nrog manually tso resin-impregnatedfiberglass ntaublos yog mats rau hauv pwm thiab cia lawv kho. Cov txheej txheem tshwj xeeb yog raws li hauv qab no: Ua ntej, txheej txheej txheej txheej txheej txheej yog tsim los ntawm cov ntaub thiab fiberglass. Tom qab txheej txheej txheej kho, nws raug tshem tawm ntawm pwm, thiab txheej txheej txheej yog tsim. Resin yog tom qab ntawd txhuam mus rau ob qho tib si pwm nto thiab sab hauv liner. Pre-txiav fiberglass daim ntaub txheej yog nteg raws li ib tug predetermined stacking txoj kev npaj, nrog rau txhua txheej compacted siv ib tug menyuam los xyuas kom meej impregnation. Thaum lub thickness xav tau tiav, lub rooj sib txoos yog kho thiab demolded.

Lub matrix resin rau tes nteg-up molding feem ntau siv epoxy los yog unsaturated polyester, thaum cov khoom siv ntxiv yog nruab nrab-alkali lossisalkali-dawb fiberglass daim ntaub.

Qhov zoo: Cov khoom siv tsawg tsawg, muaj peev xwm tsim cov flanges tsis yog tus qauv, thiab tsis muaj kev txwv ntawm flange geometry.

Qhov tsis zoo: Cov npuas npuas tsim thaum lub sij hawm kho resin tuaj yeem ua rau porosity, txo cov neeg kho tshuab lub zog; tsawg ntau lawm efficiency; thiab uneven, unrefined nto tiav.

2. Compression Moulding

Compression molding yuav tsum tso ib qho ntsuas ntawm cov khoom molding rau hauv flange pwm thiab kho nws nyob rau hauv siab siv lub xovxwm. Moulding cov ntaub ntawv sib txawv thiab tej zaum yuav muaj xws li pre-mixed los yog pre-impregnated luv-txiav fiber compounds, recycled fiberglass daim ntaub scraps, resin-impregnated multi-layer fiberglass ntaub rings / strips, stacked SMC (daim ntawv molding compound) nplooj ntawv, los yog prewoven fiberglass ntaub preforms. Nyob rau hauv txoj kev no, lub flange disk thiab lub caj dab yog molded ib txhij, txhawb kev sib koom ua ke lub zog thiab tag nrho cov qauv kev ncaj ncees.

Cov txiaj ntsig zoo: Qhov tseeb qhov tseeb, rov ua dua, tsim nyog rau kev siv ntau lawm, muaj peev xwm tsim cov kab nrib pleb-caj dab flanges hauv ib kauj ruam, thiab zoo nkauj du nto uas yuav tsum tsis muaj kev ua haujlwm tom qab.

Disadvantages: Cov nqi pwm siab thiab cov kev txwv ntawm flange loj vim muaj kev txwv lub txaj.

3. Resin Hloov Moulding (RTM)  

RTM suav nrog kev muab cov iav fiberglass tso rau hauv cov pwm kaw, txhaj tshuaj resin rau impregnate cov fibers, thiab kho. Cov txheej txheem suav nrog:

• Tso lub fiberglass preform txuam nrog flange geometry hauv pwm kab noj hniav.
• Txhaj tshuaj tsawg-viscosity resin nyob rau hauv kev tswj kub thiab siab kom saturate lub preform thiab tshem tawm cua.
• Cua sov los kho thiab demolding lub tiav flange.

Resins feem ntau yog unsaturated polyester lossis epoxy, thaum lub zog muaj xws lifiberglass nruam matslos yog woven fabrics. Cov khoom ntim xws li calcium carbonate, mica, lossis txhuas hydroxide tuaj yeem raug ntxiv los txhim kho cov khoom lossis txo cov nqi.

Qhov zoo: Cov npoo du, muaj peev xwm ua tau zoo, kev lag luam kaw pwm (tso qis emissions thiab kev noj qab haus huv txaus ntshai), kev taw qhia fiber ntau rau kev ua kom zoo zog, peev nyiaj tsawg, thiab txo cov khoom siv / lub zog noj.

4. Vacuum-Assisted Resin Transfer Molding (VARTM)

VARTM hloov kho RTM los ntawm kev txhaj tshuaj resin hauv qab lub tshuab nqus tsev. Cov txheej txheem yuav tsum sealing lub fiberglass preform ntawm ib tug txiv neej pwm nrog ib lub hnab nqus tsev vacuum, evacuating cua los ntawm pwm kab noj hniav, thiab kos cov resin rau hauv lub preform ntawm lub tshuab nqus tsev siab.

Piv rau RTM, VARTM tsim cov flanges nrog qis porosity, cov ntsiab lus fiber ntau dua, thiab lub zog zoo dua qub.

5. Airbag-pab resin hloov molding

Airbag-pab RTM molding kuj yog ib hom molding tshuab tsim los ntawm RTM. Cov txheej txheem ntawm kev npaj flanges los ntawm txoj kev molding no yog raws li nram no: flange-zoo li tus iav fiber ntau preform yog muab tso rau saum npoo ntawm lub airbag, uas yog ntim nrog cua thiab ces nthuav tawm sab nraud thiab yog nyob rau hauv qhov chaw ntawm cathode pwm, thiab lub flange preform ntawm cathode pwm thiab lub airbag yog compacted thiab kho.

Qhov zoo: qhov nthuav dav ntawm lub airbag tuaj yeem ua rau cov resin ntws mus rau ib feem ntawm lub preform uas tsis yog impregnated, kom ntseeg tau tias lub preform yog zoo impregnated los ntawm cov resin; cov ntsiab lus resin tuaj yeem hloov kho los ntawm lub siab ntawm airbag; Lub siab exerted los ntawm lub airbag yog siv rau sab hauv ntawm lub flange, thiab lub flange tom qab kho muaj tsawg porosity thiab zoo mechanical zog. Feem ntau hais lus, tom qab npajFRPflange nrog cov txheej txheem molding saum toj no, sab nrauv ntawm lub flange yuav tsum tau ua tiav raws li qhov yuav tsum tau ua ntawm kev siv tig thiab drilling los ntawm qhov nyob ib ncig ntawm lub voj voog ntawm flange.