Maitiro ekugadzira refu fiber yakasimbiswa thermoplastics?

2. Zvikamu uye mold design
Zvikamu zvakanaka uye mold design inobatsirawo kuchengetedza urefu hwefiber yeLFRT.Kubvisa makona akapinza akatenderedza mamwe mapendero (kusanganisira mbabvu, mabhosi, uye zvimwe zvinhu) zvinogona kudzivirira kushushikana kusingakoshi muchikamu chakaumbwa uye kuderedza fiber kupfeka.
Zvikamu zvinofanirwa kutora zita remadziro dhizaini ine yunifomu yemadziro ukobvu.Misiyano mikuru muhukobvu hwemadziro inogona kutungamira mukusaenderana kuzadza uye kusingadiwe fiber kutaridzika muchikamu.Ikoko kunofanirwa kuve kwakakora kana kutetepa, kungoerekana kwachinja muhukobvu hwemadziro kunofanirwa kudziviswa kudzivirira kuumbwa kwenzvimbo dzekugera dzakakwirira dzinogona kukuvadza mafiibhi uye dzikava iyo inokonzera kushungurudzika.Kazhinji edza kuzarura gedhi mumadziro akareba uye kuyerera kune chikamu chakaonda, kuchengetedza kuguma kwekuzadza muchikamu chakaonda.
Iyo yakajairika yakanaka yepurasitiki dhizaini musimboti inoratidza kuti kuchengeta ukobvu hwemadziro pasi pe4mm (0.160in) kunosimudzira kunaka uye yunifomu kuyerera uye kuderedza mukana wemazino uye voids.Kune LFRT macomposites, iyo yakanakisa madziro ukobvu kazhinji inenge 3mm (0.120in), uye diki gobvu i2mm (0.080in).Kana ukobvu hwemadziro huri pasi pe2mm, mukana wekuputsika kwefiber mushure mekunge zvinhu zvapinda mu mold inowedzera.
Chikamu chinongova chikamu chimwe chete chekugadzira, uye zvakakoshawo kufunga kuti zvinhu zvinopinda sei muhutu.Kana vamhanyi nemagedhi vachitungamira zvinhu mugomba, kana pasina dhizaini chaiyo, kukuvara kwakawanda kwefiber kuchaitika munzvimbo idzi.
Paunenge uchigadzira mold yekugadzira LFRT macomposites, mumhanyi akatenderedzwa zvakakwana ndiye akanakisa, uye dhayamita yaro i5.5mm (0.250in).Kunze kweiyo yakazara fillet vanomhanya, chero mamwe maitiro evamhanyi achange aine makona akapinza, ayo anozowedzera kushushikana panguva yekugadzira uye kuparadza kusimba kwekusimbisa kwegirazi fiber.Hot mumhanyi masisitimu ane akavhurika mumhanyi anogamuchirwa.
Ukobvu hushoma hwegedhi hunofanira kuva 2mm (0.080in).Kana zvichiita, tsvaga gedhi padivi pemupendero usingatadzise kuyerera kwechinhu mugomba.Gedhi riri pamusoro pechikamu richada kutenderedzwa ne90 ° kudzivirira kuparara kwefiber uye kuderedza mechanical properties.
Pakupedzisira, teerera kune nzvimbo yemutsetse wefusion uye uzive maitiro avanoita nzvimbo iyo chikamu chinoiswa pasi pekuremerwa (kana kushushikana) panguva yekushandiswa.Mutsara wekusanganiswa unofanirwa kuendeswa kunzvimbo inotarisirwa kuti nhanho yekushushikana iite yakaderera kuburikidza nekurongeka kwakanaka kwegedhi.
Computerized mold filling analysis inogona kubatsira kuona kuti aya weld mitsara achawanikwa kupi.Structural finite element analysis (FEA) inogona kushandiswa kuenzanisa nzvimbo yekushushikana kwakanyanya nenzvimbo yemutsetse weconfluence wakatemerwa mukuwongorora kwekuzadza mold.
Izvo zvinofanirwa kucherechedzwa kuti zvikamu izvi uye mold magadzirirwo anongori mazano.Kune mienzaniso mizhinji yezvikamu zvine madziro akatetepa, akasiyana madziro makubvu, uye akatetepa kana akanaka maficha.Kuita kwakanaka kunowanikwa uchishandisa LFRT makomisheni.Nekudaro, mumwekuwedzera kutsauka kubva pane izvi zvinokurudzirwa, iyo nguva yakawanda uye kushanda nesimba kuchaita kuti ive nechokwadi chekuti mabhenefiti akazara ehunyanzvi-tekinoroji mitezo refu anoonekwa.

2. Zvikamu uye mold design
Zvikamu zvakanaka uye mold design inobatsirawo kuchengetedza urefu hwefiber yeLFRT.Kubvisa makona akapinza akatenderedza mamwe mapendero (kusanganisira mbabvu, mabhosi, uye zvimwe zvinhu) zvinogona kudzivirira kushushikana kusingakoshi muchikamu chakaumbwa uye kuderedza fiber kupfeka.
Zvikamu zvinofanirwa kutora zita remadziro dhizaini ine yunifomu yemadziro ukobvu.Misiyano mikuru muhukobvu hwemadziro inogona kutungamira mukusaenderana kuzadza uye kusingadiwe fiber kutaridzika muchikamu.Ikoko kunofanirwa kuve kwakakora kana kutetepa, kungoerekana kwachinja muhukobvu hwemadziro kunofanirwa kudziviswa kudzivirira kuumbwa kwenzvimbo dzekugera dzakakwirira dzinogona kukuvadza mafiibhi uye dzikava iyo inokonzera kushungurudzika.Kazhinji edza kuzarura gedhi mumadziro akareba uye kuyerera kune chikamu chakaonda, kuchengetedza kuguma kwekuzadza muchikamu chakaonda.
Iyo yakajairika yakanaka yepurasitiki dhizaini musimboti inoratidza kuti kuchengeta ukobvu hwemadziro pasi pe4mm (0.160in) kunosimudzira kunaka uye yunifomu kuyerera uye kuderedza mukana wemazino uye voids.Kune LFRT macomposites, iyo yakanakisa madziro ukobvu kazhinji inenge 3mm (0.120in), uye diki gobvu i2mm (0.080in).Kana ukobvu hwemadziro huri pasi pe2mm, mukana wekuputsika kwefiber mushure mekunge zvinhu zvapinda mu mold inowedzera.
Chikamu chinongova chikamu chimwe chete chekugadzira, uye zvakakoshawo kufunga kuti zvinhu zvinopinda sei muhutu.Kana vamhanyi nemagedhi vachitungamira zvinhu mugomba, kana pasina dhizaini chaiyo, kukuvara kwakawanda kwefiber kuchaitika munzvimbo idzi.
Paunenge uchigadzira mold yekugadzira LFRT macomposites, mumhanyi akatenderedzwa zvakakwana ndiye akanakisa, uye dhayamita yaro i5.5mm (0.250in).Kunze kweiyo yakazara fillet vanomhanya, chero mamwe maitiro evamhanyi achange aine makona akapinza, ayo anozowedzera kushushikana panguva yekugadzira uye kuparadza kusimba kwekusimbisa kwegirazi fiber.Hot mumhanyi masisitimu ane akavhurika mumhanyi anogamuchirwa.
Ukobvu hushoma hwegedhi hunofanira kuva 2mm (0.080in).Kana zvichiita, tsvaga gedhi padivi pemupendero usingatadzise kuyerera kwechinhu mugomba.Gedhi riri pamusoro pechikamu richada kutenderedzwa ne90 ° kudzivirira kuparara kwefiber uye kuderedza mechanical properties.
Pakupedzisira, teerera kune nzvimbo yemutsetse wefusion uye uzive maitiro avanoita nzvimbo iyo chikamu chinoiswa pasi pekuremerwa (kana kushushikana) panguva yekushandiswa.Mutsara wekusanganiswa unofanirwa kuendeswa kunzvimbo inotarisirwa kuti nhanho yekushushikana iite yakaderera kuburikidza nekurongeka kwakanaka kwegedhi.
Computerized mold filling analysis inogona kubatsira kuona kuti aya weld mitsara achawanikwa kupi.Structural finite element analysis (FEA) inogona kushandiswa kuenzanisa nzvimbo yekushushikana kwakanyanya nenzvimbo yemutsetse weconfluence wakatemerwa mukuwongorora kwekuzadza mold.
Izvo zvinofanirwa kucherechedzwa kuti zvikamu izvi uye mold magadzirirwo anongori mazano.Kune mienzaniso mizhinji yezvikamu zvine madziro akatetepa, akasiyana madziro makubvu, uye akatetepa kana akanaka maficha.Kuita kwakanaka kunowanikwa uchishandisa LFRT makomisheni.Nekudaro, mumwekuwedzera kutsauka kubva pane izvi zvinokurudzirwa, iyo nguva yakawanda uye kushanda nesimba kuchaita kuti ive nechokwadi chekuti mabhenefiti akazara ehunyanzvi-tekinoroji mitezo refu anoonekwa.

Hebei Yuniu Fiberglass Manufacturing Company Limitedndizvomugadziri wefiberglass zvinhu ane anopfuura 10-gore ruzivo, 7- makore ekutumira kunze ruzivo.

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