Jekiseni kuumba, kungotaura chete, inzira yekushandisa simbi kugadzira mhango muchimiro chechikamu, kuisa kumanikidza kune yakanyungudutswa yepurasitiki yemvura kuti iipise mugomba uye kuchengetedza kudzvanywa kwenguva yakati, uyezve kutonhora. plastiki inonyunguduka uye ichibvisa chikamu chakapedzwa. Nhasi, ngatitaure pamusoro pezvizhinji zvakajairika zvekuumba maitiro.
1. Kupupa furo
Foam molding inzira yekugadzirisa inoumba porous chimiro mukati mepurasitiki nenzira yemuviri kana kemikari.
Maitiro:
a. Kudyisa: Zadza mold neyakabikwa kuti ipuhwe furo.
b. Clamping heat: Kupisa kunopfavisa zvimedu, kunofefetera mumiriri unopupa mumaseru, uye kunobvumira svikiro rekudziya kupinda mukati kuti riwedzere kuwedzera zvigadzirwa. Kuumbwa kunozoganhurwa negomba re mold. Iyo yakawedzera mbishi zvinhu inozadza iyo mold mhango yese uye zvisungo zvakazara.
c. Kutonhora kuumba: Rega chigadzirwa chitonhore uye chiwedzere.
Zvakanakira:Chigadzirwa chine yakakwira thermal insulation mhedzisiro uye yakanaka kukanganisa kuramba.
Zvakaipa:Radial flow marks inoumbwa zviri nyore kumberi kwekuyerera kwezvinhu. Kunyangwe iri kemikari inopupuma kana micro-foaming, pane zviri pachena chena radial kuyerera mamaki. Hunhu hwepamusoro hwezvikamu hwakashata, uye hahuna kukodzera zvikamu zvine zvinodiwa zvemhando yepamusoro.
2. Kukandira
Uyewo anozivikanwa sekuumba kuumba, maitiro ekuti mvura resin mbishi yakasanganiswa polymer inoiswa muforoma kuti iite uye kusimba pasi pekumanikidzwa kwakajairwa kana nharaunda yekumanikidza zvishoma. Nylon monomers uye polyamides Nekufambira mberi kwetekinoroji, iyo yechinyakare yekukanda pfungwa yachinja, uye polymer mhinduro uye dispersions zvinosanganisira PVC paste uye mhinduro zvinogona zvakare kushandiswa kukanda.
Cast molding yakatanga kushandiswa ku thermosetting resins uye gare gare kune thermoplastic zvinhu.
Maitiro:
a. Kugadzirira mold: Zvimwe zvinoda kupiswa. Chenesa mold, pre-isa mold kuburitswa kana zvichidikanwa, uye pre-kupisa mold.
b. Gadzirisa mvura yekukanda: Sanganisa iyo yepurasitiki zvigadzirwa, yekurapa mumiriri, catalyst, nezvimwewo, buritsa mweya woiisa muforoma.
c. Kukanda uye kurapa: Iyo mbishi inogadzirwa polymerized uye inorapwa muforoma kuti ive chigadzirwa. Iyo yekuomesa maitiro inopedzwa pasi peyakajairika kudzvanywa kupisa.
d. Demoulding: Demoulding mushure mekurapa kwapera.
Zvakanakira:Izvo zvinodiwa zvinoshandiswa zviri nyore uye hapana kumanikidzwa kunodiwa; zvinodiwa pakusimba kwemuumbi hazvina kukwirira; chigadzirwa chakafanana uye kushushikana kwemukati kwakaderera; ukuru hwechigadzirwa hahuna kudziviswa, uye midziyo yekumanikidza iri nyore; iyo mold simba zvinodiwa zvakaderera; iyo workpiece yunifomu uye kushushikana kwemukati kwakadzikira, Workpiece saizi zvirambidzo zvidiki uye hapana midziyo yekumanikidza inodiwa.
Zvakaipa:Chigadzirwa chacho chinotora nguva yakareba kuti chigadzire uye kushanda kwakaderera.
Application:Mhando dzakasiyana-siyana, mapaipi, etc. Plexiglass ndiyo inonyanya kufanana nepurasitiki yekukanda chigadzirwa. Plexiglass ndeye yakasarudzika yepurasitiki yekukanda chigadzirwa.
3. Compression molding
Iyo inozivikanwawo sekutamisa epurasitiki firimu kuumba, inzira yekuumba ye thermosetting mapurasitiki. Iyo workpiece inorapwa uye inoumbwa mune mold mhango mushure mekupisa nekutsikirira uyezve kupisa.
Maitiro:
a. Kupisa kwekudya: Kupisa uye kupfavisa zvigadzirwa.
b. Pressurization: Shandisa chinoputira kana plunger kudzvanya yakapfava uye yakanyungudutswa mbishi zvinhu muforoma.
c. Kugadzira: Kutonhodza uye kudhiza mushure mekugadzira.
Zvakanakira:Mashoma mabheti eworkpiece, kuderedzwa kwemitengo yebasa, yunifomu yekushushikana kwemukati, uye yakakwirira dimensional kurongeka; kushoma kupfekwa kwe mold kunogona kugadzira zvigadzirwa zvine yakanaka kana yekupisa-inopinza inopinza.
Zvakaipa:Kudhura kukuru kwekugadzira mold; kurasikirwa kukuru kwepurasitiki mbishi.
Nguva yekutumira: May-18-2022
