Dab tsi yog tes nteg- txheej txheem rau chopped strand lev (CSTM)?

I. Ua ntej-Kev npaj ua vaj tse

 

Kev tshuaj xyuas cov khoom:

 

Paub meej tias covchopped strand levtsis muaj roj stains, puas, thiab delamination; cov fibers yog sib npaug.

Xyuas seb hom resin puas sib xws (feem ntau unsaturated polyester, epoxy, vinyl ester).

Cov nplaum feem ntau yog hom hmoov lossis emulsion; xyuas kom nws tsis ntub thiab lumpy.

 

Cov cuab yeej thiab Site:

 

Cov cuab yeej: Roller, txhuam, scraper, txiab, ntsuas thawv, nplawm pas nrig.

Qhov chaw: Zoo-ventilated; kub feem ntau tswj ntawm 15 thiab 30 degree; Humidity Tsawg dua lossis sib npaug li 75%.

Ntxuav cov pwm saum npoo thiab siv tus neeg sawv cev tso tawm kom ntseeg tau tias kev demolding du.

 

II. Resin Preparation thiab Impregnation

 

Resin Proportioning: Ntxiv curing agent thiab accelerator raws li cov chaw tsim tshuaj paus cov lus qhia thiab do tusyees.

Ua tib zoo saib xyuas cov tshuaj kom raug kom tsis txhob ua kom nrawm nrawm lossis qeeb qeeb, uas yuav cuam tshuam rau cov nyhuv impregnation.

Kev Ua Haujlwm Impregnation: Ncuav cov resin rau ntawm qhov chaw uas muaj lub ntsej muag lossis cov pwm thiab kis nws tus kheej nrog cov menyuam los yog txhuam.

Siv txoj kev sib kis los ntawm qhov chaw sab nraud kom tsis txhob muaj cua npuas.

Ultra-xav tau nkag mus sai; tus nqi ntawm cov resin siv nyob rau hauv ib lub sij hawm yuav tsum tsis txhob ntau dhau los tiv thaiv dripping thiab pov tseg, los yog ntau tshaj thickness nyob rau hauv tej qhov chaw.

 

III. Tso thiab Compacting

 

Laying Method: Pw cov txheej txheej los ntawm txheej raws li cov txheej txheem tsim, kom ntseeg tau tias txhua txheej yog saturated ua ntej nteg cov tom ntej.

Thaum tso cov khaubncaws sab nraud povtseg, ua tib zoo saib xyuas cov npoo kom tsis txhob sib tshooj sib tshooj thiab thickness fluctuations.

Kev tshem tawm thiab ua kom sib haum: Yob cov kev xav los ntawm qhov chaw tawm sab nraud kom tshem tawm cov cua thiab cov dej ntau dhau.

Siv cov kev txav du thiab nruab nrab siab los tiv thaiv kev hloov pauv ntawm fiber ntau los yog tearing ntawm kev xav.

Ultra- nyias xav tau yooj yim adheres rau nkhaus pwm nto; tus naj npawb ntawm dov hla tuaj yeem nce ntxiv kom tsim nyog los xyuas kom haum zoo.

 

IV. Kho thiab Post-kev kho mob

 

Curing Conditions: Chav tsev kub curing: Nyob ntawm cov txheej txheem resin, qhov no feem ntau yuav siv li ob peb teev mus rau ib hnub.

Kev kho cua sov: Qhov kub tuaj yeem nce ntxiv raws li cov lus qhia cob kom nrawm kho thiab txhim kho kev ua haujlwm.

Tom qab-kev kho mob: Tom qab kho, demold thiab xyuas qhov chaw kom smoothness, npuas, thiab delamination.

Yog tias tsim nyog, xuab zeb thiab kho ua ntej tha xim lossis sib txuas lwm qhov chaw.

 

V. Ceev faj

 

Tiv thaiv kom qhuav: Lub sijhawm ntev ntawm qhov xav tau rau huab cua yuav cuam tshuam rau nws qhov ntub dej; siv raws li xav tau.

Tswj Resin Dosage: Ultra-thin felts absorb tsawg resin; Cov resin ntau dhau yuav ua rau cov khoom muag muag thiab shrinkage ntau dua.

Tsis txhob muaj zog Stretching: Tsis txhob rub lub zog quab yuam thaum lub sij hawm txheej txheej los tiv thaiv fiber ntau sib dhos thiab txo isotropy.

Kev Tiv Thaiv Kev Nyab Xeeb: Hnav hnab looj tes, daim npog qhov ncauj, thiab tsom iav kom tsis txhob muaj kev sib cuag ntawm cov resin thiab cov kuab tshuaj thiab cov tawv nqaij thiab qhov muag.