Lub ntsiab tswj ntawm iav fiber tam yas nylon - Khoom Taw qhia

Kev tawg ntawm cov iav fiber, kev sib koom tes ntawm iav fiber ntau thiab lub hauv paus nylon, qhov loj thiab faib cov iav fiber ntau, cov ntawv thov raug ntawm ntau yam tshuaj ntxiv, kev hloov kho ntawm cov txheej txheem puag, ntsia hlau ua ke thiab tswj kev nrawm yuav cuam tshuam tag nrho cov kev ua tau zoo ntawm cov khoom.

1) Cov kab uas hla ntawm iav fiber ntau tswj tau 10-20 microns

2) Qhov ntev ntawm cov iav fiber yog feem ntau tswj tau zoo ntawm 2 ~ 3 millimeters. Hauv txoj kev xav, qhov ntev ntev dua ntawm cov iav fiber ntau, qhov zoo dua qhov ua tau zoo, tab sis nws yuav ua teeb meem xws li ntxhib saum npoo thiab kev ua tsov ua rog ntawm cov khoom. Qhov ntev ntawm cov iav fiber muaj tsis muaj dab tsi ua rau nws ntev ntev, tab sis muaj feem xyuam rau cov ntsia hlau ua ke cov qauv thiab kev nrawm.

3) Cov dej nyob saum npoo ntawm cov iav fiber yuav ua rau lub PA ua rau lub cev tiv thaiv cov kua dej thaum lub sij hawm yaj txheej txheem txheej txheem, ua rau PA tsis zoo, yog li txo cov khoom kho tshuab ntawm cov txhim kho PA.

4) Qhov cuam tshuam ntawm tus nqi ntawm tus neeg sawv cev txuas rau ntawm cov kev xav tau notched. Qhov tsis zoo cuam tshuam lub zog nce nrog qhov nce ntawm qhov ntau npaum li cas ntawm tus neeg sawv cev txuas.

5) Cov thermal deformation kub ntawm PA6 nce nrog qhov nce ntawm cov iav fiber ntau hauv 30% ntawm cov iav fiber ntau cov ntsiab lus, thiab lub thermal deformation tsis hloov pauv ntau nrog qhov nce ntawm iav fiber ntau tom qab ntau dua 35%.

6) Thaum lub iav fiber ntau cov ntsiab lus tsub zuj zus, lub ntsej muag moulding ntawm lub zog PA txo. Yuav luag txhua qhov PAs txhawb nqa muaj cai ib yam. Thaum cov iav fiber ntau cov ntsiab lus nce mus txog 35%, lub pwm pwm shrinkage yog li 0.2%.

7) Qhov cuam tshuam ntawm kev sib xyaw ua ke ntawm qhov ntsuas PA Extrusion ntsuas kub tsis dhau, qhov cuam tshuam ntawm iav fiber ntau tsis zoo, thiab qhov tshwm sim ntawm iav fiber ntau feem ntau tshwm sim. Qhov saum npoo ntawm cov txaij yog ntxhib, matte, xoob xoob, qhov loj tawg, thiab qhov cuam tshuam lub zog ntawm cov khoom Yog tias kub extrusion ntau dhau lawm, cov cuab yeej muaj zog ntawm cov khoom siv thermo-oxidative decomposition ntawm PA yuav yooj yim txo, cov tsos yuav dhau xim daj, lossis xim txho. Lub hauv paus ntsiab lus ntawm kev twv kom sov kub kub xaiv yog tswj hwm qhov ntsuas kub ntau dua me ntsis tshaj li qhov chaw melting ntawm cov khoom siv dag zog. Hauv cov txheej txheem kev ua haujlwm tiag tiag, qhov kub ntawm thaj chaw melting tuaj yeem txiav txim siab raws li lub teeb meem yaj ntawm cov iav fiber inlet, thiab qhov ntsuas kub ntawm ntu ntsuas thiab ntsuas kub ntawm txhua cheeb tsam ntawm ntu seem tuaj yeem txiav txim siab raws li cov ci ntawm lub pluaj extruded.

8) Qhov cuam tshuam ntawm ntsia hlau ceev rau ntawm kev ua tau zoo ntawm PA ruaj khov. Thaum cov ntsia hlau ceev dhau ntawm qhov tsawg, cov nyhuv txiab ntawm lub hau ntswj me me thiab lub iav fiber tsis zoo tib yam dispersed. Nyob rau tib lub sijhawm, nws cov txiaj ntsig sib xyaw ua kom zoo dua, tab sis vim qhov kev sib hloov ceev ntawm lub hau ntswj, qhov kev sib txhuam loj yuav tsim tawm, uas yuav ua rau qhov kub ntawm lub hau ntswj dhau siab thiab ua rau cov khoom siv hauv paus thiab qee qhov ntxiv rau cov ntawv ua kom sov tawg, cuam tshuam rau cov khoom zoo. Qhov ceev tuaj yeem tau nce me ntsis. Rau cov nplaim hluavtaws txhim kho, vim hais tias cov nplaim hluav taws kub sai sai ua rau cov cua sov ua kom tsis zoo, qhov nrawm qis yuav tsum siv.

Main controlling factors of glass fiber reinforced nylon