Iyo yepurasitiki mold inonyanya kuumbwa nezvikamu zvitatu: kudira sisitimu, zvikamu zvekuumba uye zvikamu zvechimiro.Pakati pavo, gating system uye zvikamu zvekuumba zvikamu zvinosangana zvakananga nepurasitiki, uye kuchinja nepurasitiki uye chigadzirwa.Ndiwo akanyanya kuomarara uye anochinjika zvikamu zvepurasitiki mold uye inoda iyo yepamusoro yekugadzirisa kupedzisa uye nemazvo.
Iyo yepurasitiki mold gating system inoreva chikamu chemumhanyi purasitiki isati yapinda mugomba kubva mumhuno, kusanganisira mumhanyi mukuru, inotonhora zvinhu mhango, mumhanyi uye gedhi.Zvikamu zvakaumbwa zvinoreva zvikamu zvakasiyana-siyana zvinoumba chimiro chechigadzirwa, zvinosanganisira molds inofambiswa, yakagadziriswa mold uye cavities, cores, kuumba tsvimbo, uye exhaust ports.
1. Mainstream
Inzira iri mu mold inobatanidza muromo wemushini wejekiseni kune mumhanyi kana mhango.Pamusoro pesprue pane concave yekubatana nemuromo.
Iyo inlet dhayamita yechiteshi chikuru inofanira kunge yakakura zvishoma pane dhayamita yemhino (0.8mm) kudzivirira kufashukira uye kudzivirira maviri kubva kuvharwa nekuda kwekubatana kusiri iko.
Iyo dhayamita yeinopinza inoenderana nehukuru hwechigadzirwa, kazhinji 4-8mm.Iyo dhayamita yesprue inofanira kuwedzerwa mukati mukati mekona ye 3 ° kusvika 5 ° kuti iite kuti kusunungurwa kwemarara emumhanyi.
2. Gomba rezvinhu zvinotonhora
Igomba riri kumagumo echiteshi chikuru chekutora zvinhu zvinotonhora zvinogadzirwa pakati pemajekiseni maviri pamagumo emuromo, nekudaro kudzivirira kuvharika kweanomhanya kana gedhi.Kana iyo inotonhora inosanganiswa mugomba, kushushikana kwemukati kunogadzirwa nyore nyore mune yakagadzirwa chigadzirwa.
Iyo dhayamita yegomba rinotonhora rinenge 8-10mm, uye kudzika kuri 6mm.Kuti ufambise demoulding, pasi inowanzotakurwa netsvimbo yekudzikisa.Kumusoro kwetsvimbo yekudhonzera kunofanirwa kugadzirwa sechiredzo che zigzag kana groove yakanyura, kuitira kuti sprue ibudiswe kunze zvakanaka kana ichidhirowa.
Chechitatu, shunt
Ndiyo chiteshi chinobatanidza chiteshi chikuru uye yega yega mune yakawanda-slot mold.Kuti iite kuti kunyunguduka kuzadze gango rega rega nekumhanya kwakafanana, kurongeka kwevamhanyi pane mold kunofanirwa kunge kwakaenzana uye kwakaenzana.Chimiro uye ukuru hwechikamu chemumhanyi zvine chekuita nekuyerera kwepurasitiki yakanyunguduka, kudhirowa kwechigadzirwa uye kuve nyore kwekugadzira mold.
Kana kuyerera kwehuwandu hwehuwandu hwezvinhu hunofungidzirwa, kuyerera kwegero rekudzivirira kwechikamu chedenderedzwa ndicho chiduku.Nekudaro, nekuti iyo chaiyo pamusoro peiyo cylindrical mumhanyi idiki, haina kunaka kutonhora kwezvinhu zvakawandisa zvemumhanyi, uye mumhanyi anofanira kuvhurwa pamahafu maviri e mold, iyo inoshanda-yakanyanya uye nyore kurongedza. .
Nguva yekutumira: Aug-24-2022