Mau oyamba a Zopanga
Zopangira zowombedwa zimagwiritsidwa ntchito kwambiri m'mafakitale osiyanasiyana, makamaka m'makampani opanga zakumwa ndi mankhwala, komanso m'makampani azoseweretsa.
Pangani kusintha kwa R m'mphepete ndi ngodya
Nthawi zambiri, ngodya ndi ngodya za zinthu zowumbidwa ndi nkhonya ziyenera kupangidwa kukhala kusintha kwa R, chifukwa chokulirapo pakuwomba kokulirapo pamakona akuthwa ndikosavuta kuyambitsa makulidwe a khoma, komanso ngodya zakuthwa ndizosavuta kupanga kusweka, ndi kusintha kwa R. wa mankhwala akhoza kupanga khoma makulidwe a mankhwala yunifolomu.
Onjezani mapangidwe apangidwe mu kupsinjika, kupsinjika, ndi torsion
Ndi zofunika zosiyanasiyana mankhwala, ena structural mapangidwe compression, nyonga ndi torsion akhoza kuwonjezeredwa:
1. Ngati mukufuna kuonjezera kukana kotalika kwa mankhwalawa, mutha kupanga zomangira zolimba motsatira kupsinjika.
2. Pofuna kupititsa patsogolo ntchito zotsutsana ndi kugwa kwa mankhwala, pamwamba pake akhoza kupangidwanso kukhala mawonekedwe a arc omwe amachititsa kupsinjika maganizo ndi kuwonjezeredwa ndi nthiti zolimbitsa.Paphewa la mankhwala a botolo liyenera kukhala lolunjika, osati lathyathyathya komanso lolunjika.
Nthawi zambiri, botolo la botolo limapangidwa kukhala mawonekedwe a concave kuti awonjezere mphamvu ndi kukhazikika.Mwachitsanzo, nthawi zambiri timawona mabotolo okhala ndi mafuta odyedwa okhala ndi mawonekedwe owoneka ngati opindika pamwamba, omwe sangangowonjezera mphamvu ya botolo, komanso amathandizira kulemba zilembo zamalonda.
Zofunikira ndi kuyambitsa zida zowumbira nkhonya
Kukula ndi kugwiritsa ntchito ukadaulo wakuwomba ndi wokulirapo, womwe umagwirizana ndi chitukuko cha zida zowumbira.Zida zomangira zowomba pang'onopang'ono zayamba kuchokera kuzinthu zoyambirira za LDPE, PET, PP ndi PVC kuti ziwombeze mapulasitiki opangira uinjiniya, mphira ndi zida zina zophatikizika.
Zofunikira zapadera za zida za mphira muzinthu zosiyanasiyana zowomba pulasitiki
1. Extrusion kuwomba akamaumba
Extrusion kuwomba akamaumba ikuchitika mu viscous otaya boma, kotero kuti kuchepetsa parison sag ndi kukhathamiritsa khoma makulidwe kugawa, pulasitiki ndi lalikulu maselo kulemera zambiri ntchito.
2. jekeseni kuwomba akamaumba
Jekeseni kuwomba akamaumba ikuchitika mu mkulu zotanuka boma.Pofuna kuchepetsa mphamvu yogwiritsira ntchito jakisoni woumba jekeseni, pulasitiki ina yomwe imakhala yosavuta kuyenda (pulasitiki yokhala ndi kulemera kochepa kwa maselo) imagwiritsidwa ntchito.
3. Jekeseni kutambasula kuwomba kuumba
Amorphous pulasitiki amagwiritsidwa ntchito nthawi zambiri.Chifukwa cha mphamvu yaing'ono ya intermolecular entanglement ya pulasitiki ya amorphous, imakhala yosavuta kutambasula.Ngakhale PET imakhalanso yonyezimira, ikadali chinthu chofunikira kwambiri chowomba, ndipo kuchuluka kwa makristali kumakhala pang'onopang'ono.Mwachidule, mapulasitiki ambiri owumba amawumba amakhala ndi magawo apakati mpaka apamwamba kwambiri.
Mtundu wa nkhonya akamaumba zinthu
1. Polyolefins
HDPE, LLDPE, LDPE, PP, EVA nthawi zambiri amagwiritsidwa ntchito popanga zinthu zamafakitale, zotengera ndi zida zoseweretsa, zotengera zosungiramo mankhwala, etc.
2. Thermoplastic polyester
PETG ndi PETP zimagwiritsa ntchito kuwomba carbonated chakumwa ma CD mabotolo ndi vinyo mabotolo, amene pang'onopang'ono m'malo PVC ndipo ankagwiritsa ntchito.Choyipa chake ndi chakuti mtengo wawo ndi wokwera, ndipo amagwiritsidwa ntchito kwambiri popanga jekeseni wojambula.
3. Mapulasitiki a engineering (aloyi)
ABS, SAN, PS, PA, POM, PMMA, PPO, etc. zakhala zikugwiritsidwa ntchito pang'onopang'ono m'galimoto, mankhwala, zipangizo zapakhomo, makampani opanga mankhwala ndi mafakitale ena, makamaka PC ndi mapulasitiki ake osakanikirana, omwe angagwiritsidwe ntchito powombera apamwamba. zotengera ndi zinthu zamagalimoto (PC/ABS, etc.).
4. Thermoplastic elastomer
Nthawi zambiri, SBS, SEBS, TPU, TPE ndi zida zina zowumba zowomba zimagwiritsidwa ntchito, pomwe mapulasitiki a thermosetting, mphira wonyezimira ndi PE yolumikizana sangathe kupangidwa.
Chidule:
Zipangizo wamba jekeseni kuwomba akamaumba
Pe, PET, PVC, PP, PC ndi POM zimagwiritsa ntchito muli ndi mbali structural ndi mkulu akamaumba molondola ndi voliyumu yaing'ono.
Nthawi yotumiza: Mar-22-2023