Nekuda kwekuti kuumbwa kwakasiyana kwakafa kwakashandiswa munzvimbo dzakawanda, pamwe nekuvandudzwa kwehunyanzvi hwekugadzira mold mumakore ano, kwave nekumwe shanduko nebudiriro.
Naizvozvo, muchikamu chino, iyo yakajairika dhizaini mitemo yevacuum suction molding inofa yakapfupikiswa.Dhizaini yevacuum yepurasitiki yekuumba mold inosanganisira saizi yebatch, midziyo yekuumba, chaiyo mamiriro, geometric chimiro dhizaini, dimensional kugadzikana uye pamusoro pemhando.
1. Kuedza kwebatch size, iyo mold inobuda idiki, uye inogona kugadzirwa nematanda kana resin.Nekudaro, kana iyo yekuyedza mold iri yekuwana data nezve shrinkage, dimensional kugadzikana, uye kutenderera nguva yechigadzirwa, imwe mhango mold inofanirwa kushandiswa kuyedza, uye inogona kuvimbiswa kushandiswa pasi pemamiriro ekugadzira.Molds dzinowanzo gadzirwa negypsum, mhangura, aluminium, kana aluminium-simbi alloys, uye aluminium-resin haiwanzo kushandiswa.
2. Geometric shape design.Paunenge uchigadzira, gara uchifunga nezve dimensional kugadzikana uye pamusoro pemhando.Semuenzaniso, kugadzirwa kwechigadzirwa uye kugadzikana kwedimensional kunoda kushandiswa kwechikadzi mold (concave molds), asi zvigadzirwa zvine gloss yakakwirira yepamusoro zvinoda kushandiswa kwechirume mold (convex molds).Nenzira iyi, mutengi wepurasitiki anozofunga ese ari maviri Point kuitira kuti chigadzirwa chigone kugadzirwa pasi pemamiriro akakwana.Zvakaitika zvakaratidza kuti zvigadziriso zvisingasangane nemamiriro chaiwo ekugadzirisa zvinowanzotadza.
3. Dimensional kugadzikana.Munguva yekugadzira, iyo yekuonana pamusoro pechikamu chepurasitiki chine mold iri nani pane kugadzikana kwedimensional yechikamu chinosiya mold.Kana ukobvu hwezvinhu zvichidikanwa kushandurwa mune ramangwana nekuda kwekuomarara kwechinhu, chirume mold chinogona kushandurwa kuita chikadzi.Iyo dimensional kushivirira kwezvikamu zvepurasitiki hazvifanirwe kunge zvisingasviki 10% ye shrinkage.
4. Pamusoro pechikamu chepurasitiki, kusvika kune iyo yekuumba inogona kuvhara, chimiro chepamusoro chechimiro chinooneka chechikamu chepurasitiki chinofanira kuumbwa chinosangana ne mold.Kana zvichibvira, usabata nzvimbo yakatsetseka yechikamu chepurasitiki nechepamusoro pe mold.Zvakafanana nenyaya yekugadzira mabhavhu nematabhu ekuwachira ane mold dzisina kunaka.
5. Kuchinja.Kana iyo yekusungirira yechikamu chepurasitiki yakachekwa nemishini yakachinjika saha, panofanirwa kunge paine 6 kusvika 8 mm muhurefu hwakananga.Rimwe basa rekupfeka, senge kukuya, laser kucheka, kana jetting, rinofanirawo kubvumidza margin.Mugero uri pakati pemicheto yekucheka kwekucheka kufa ndiyo idiki, uye hupamhi hwekugovera kwe punching inofa kana kucheka zvakare kudiki.Izvi zvinofanira kutariswa.
6. Shrinkage uye deformation.Mapurasitiki ari nyore kuderera (akadai sePE).Zvimwe zvikamu zvepurasitiki zviri nyore kukanganisa.Hazvina mhosva kuti ungadzidzivirira sei, zvikamu zvepurasitiki zvinokanganisa panguva yekutonhora.Pasi pemamiriro ezvinhu aya, zvakakosha kushandura chimiro chekugadzira mold kuti ienderane nekutsauka kwejometri yechikamu chepurasitiki.Somuenzaniso: Kunyange zvazvo rusvingo rwechikamu chepurasitiki chichichengetwa chakarurama, nzvimbo yaro yekutarisa yakatsauka ne 10mm;iyo mold base inogona kusimudzwa kugadzirisa shrinkage yeiyi deformation.
7. Shrinkage, zvinotevera shrinkage zvinhu zvinofanira kuverengerwa pakugadzira purasitiki kugadzira mold.
①Chigadzirwa chakaumbwa chinoderera.Kana iyo shrinkage yepurasitiki isingazivikanwe zvakajeka, inofanirwa kutorwa kana kuwanikwa nekuyedzwa neyakafanana yakaumbwa mold.Ongorora: Chete shrinkage inogona kuwanikwa neiyi nzira, uye deformation saizi haigone kuwanikwa.
②Shrinkage inokonzerwa neyakaipira mhedzisiro yepakati midhiya, senge ceramics, silicone rabha, nezvimwe.
③Shrinkage yezvinhu zvinoshandiswa mukuumbwa, senge shrinkage kana uchikanda aluminium.
Nguva yekutumira: Aug-18-2021