Indlela yokubumba ifayibha ende eyomelezwe thermoplastics?

Ifayibha ende eyomelezwe thermoplastics (LFRT) isetyenziswa kwi-injection yokubumba izicelo ezineempawu eziphezulu zoomatshini.Nangona iteknoloji ye-LFRT inokunika amandla amahle, ukuqina kunye neempembelelo zempembelelo, indlela yokucubungula le nto idlala indima ebalulekileyo ekunqumeni ukuba yeyiphi intsebenzo inxalenye yokugqibela enokuyifeza.

Ukuze ukubumba ngempumelelo LFRT, kuyimfuneko ukuqonda ezinye iimpawu zabo ezizodwa.Ukuqonda umahluko phakathi kwe-LFRT kunye ne-thermoplastics eyomeleziweyo eqhelekileyo iye yakhuthaza ukuphuhliswa kwezixhobo, ukuyila kunye nokucubungula iteknoloji ukunyusa ixabiso kunye namandla e-LFRT.

Umahluko phakathi kwe-LFRT kunye ne-short cut yendabuko kunye ne-fiber yeglasi emfutshane i-composites eqiniweyo ubude be-fiber.Kwi-LFRT, ubude befiber bufana nobude beepellets.Oku kungenxa yokuba uninzi lwe-LFRTs ziveliswa yi-pultrusion kunokuba i-chear compounding.

Kwimveliso ye-LFRT, i-tow eqhubekayo yeifayibha yeglasiUkuzulazula okungajikwanga kuqala kutsalwa kwidayizi yokwaleka kwaye kufakwe intlaka.Emva kokuphuma kwifa, lo mcu weplastiki uqiniswe ngokuqhubekayo uyanqunyulwa okanye ufakwe i-pelletized, ngokuqhelekileyo Sika ubude be-10 ~ 12mm.Ngokwahlukileyo, i-fiber ye-glass fiber composites yendabuko iqulethe kuphela iifayili ezinqunqiweyo ezinobude obu-3 ukuya kwi-4 mm, kwaye ubude bazo buya kuncitshiswa ngakumbi ukuya ngaphantsi kwe-2 mm kwi-extruder ye-shear.

Ubude befiber kwiipellets ze-LFRT kunceda ukuphucula iimpawu zomatshini we-LFRT-impembelelo yokuchasana okanye ukunyuka kwenyuka ngelixa ugcina ukuqina.Ngethuba nje iifiber zigcina ubude bazo ngexesha lokubumba, ziya kwenza "i-skeleton yangaphakathi" ebonelela ngeempawu ze-ultra-high mechanical.Nangona kunjalo, inkqubo yokubumba engalunganga inokuguqula iimveliso zefiber ezinde zibe zizixhobo ezimfutshane.Ukuba ubude befiber buphazamiseka ngexesha lokubumba, akunakwenzeka ukufezekisa umgangatho ofunekayo wokusebenza.

Ukuze kugcinwe ubude befiber ngexesha lokubumba i-LFRT, iinkalo ezintathu ezibalulekileyo kufuneka ziqwalaselwe: umatshini wokubumba umjovo, icandelo kunye noyilo lokubumba, kunye neemeko zokucubungula.

1. Amanyathelo okhuseleko lwezixhobo

Umbuzo omnye osoloko ubuzwa malunga nokusetyenzwa kwe-LFRT ngulo: Ngaba kuyenzeka ngathi ukuba sisebenzise izixhobo zokubumba ezisele zikhona ukubumba ezi mathiriyeli.Kwiimeko ezininzi, izixhobo ezisetyenziselwa ukwenza i-fiber composites ezimfutshane zinokusetyenziselwa ukwenza i-LFRT.Nangona izixhobo zokubumba iifayibha ezimfutshane eziqhelekileyo ziyanelisa kuninzi lwamacandelo kunye neemveliso zeLFRT, ezinye izilungiso kwisixhobo zinokunceda ngcono ukugcina ubude befiber.

I-screw yenjongo ngokubanzi enecandelo eliqhelekileyo elithi "feed-compression-metering" lifanelekile kakhulu kule nkqubo, kwaye i-shear etshabalalisayo yefiber ingancitshiswa ngokunciphisa umlinganiselo wokunyanzeliswa kwecandelo lokulinganisa.Umlinganiselo woxinzelelo wecandelo lokulinganisa malunga ne-2:1 yeyona ilungileyo kwiimveliso zeLFRT.Akuyimfuneko ukusebenzisa i-alloys ezikhethekileyo zetsimbi ukwenza izikrufu, imigqomo kunye namanye amacandelo, kuba ukunxiba kwe-LFRT akulunganga njengefayibha yeglasi enqunqiweyo eyomelezwe kwi-thermoplastics.

Esinye isixhobo esinokuthi sizuze kuphononongo loyilo yincam yomlomo.Ezinye izixhobo ze-thermoplastic kulula ukuzisebenzisa kunye nencam ye-nozzle ebuyela umva, enokudala iqondo eliphezulu lokucheba xa izinto zitofwa kumgodi wokungunda.Nangona kunjalo, le ngcebiso yomlomo inokunciphisa kakhulu ubude befayibha yezinto ezihlanganisiweyo zefiber ende.Ngoko ke, kucetyiswa ukuba usebenzise i-grooved nozzle tip / i-valve indibano kunye ne-100% yoyilo "lokuhamba kwamahhala", okwenza kube lula ukuba imicu emide idlule kwi-nozzle kunye nenxalenye.

Ukongeza, ububanzi bombhobho kunye nomngxuma wesango kufuneka ube nobukhulu obukhululekileyo obuyi-5.5m

m (0.250in) okanye ngaphezulu, kwaye kufuneka kungabikho macala abukhali.Kubalulekile ukuqonda indlela izinto ezihamba ngayo kwisixhobo sokubumba isitofu kunye nokugqiba apho i-chear iya kwaphula khona imicu.

Hebei Yuniu Fiberglass Manufacturing Company Limitedyiumenzi wezinto zefiberglass onamava angaphezulu kweminyaka eli-10, amava okuthumela ngaphandle kweminyaka esi-7.

Thina umenzi fiberglass izinto ekrwada, ezifana i-fiberglass roving, i-fiberglass yarn, i-fiberglass inqunyulwe i-strand mat, i-fiberglass inqunyulwe imisonto, i-fiberglass emnyama mat, i-fiberglass elukiweyo i-roving, ilaphu le-fiberglass, ilaphu le-fiberglass..Njalo njalo.

Ukuba kukho naziphi na iimfuno, nceda uqhagamshelane nathi ngokukhululekileyo.

Siya kwenza konke okusemandleni ethu ukukunceda kwaye sikuxhase.