Kupanga ma pulp molding, monga choyimira chodziwika bwino cha ma pulp mold, kumakondedwa ndi eni ake a kampani. Pakupanga zinthu zopangidwa ndi ma pulp mold, nkhungu, monga gawo lofunikira, ili ndi zofunikira kwambiri pakupanga ndi kupanga, ndalama zambiri, nthawi yayitali, komanso chiopsezo chachikulu. Ndiye, mfundo zazikulu ndi zodzitetezera pakupanga ma plastic molds a mapepala ndi ziti? Pansipa, tigawana zomwe takumana nazo pakupanga ma plugs molds kuti muphunzire ndikuwona kapangidwe ka nkhungu ka ma pulp mold.
01Kupanga Nkhungu
Kapangidwe kake kamakhala ndi nkhungu yozungulira, nkhungu yopingasa, nkhungu ya mauna, mpando wa nkhungu, malo obisalamo nkhungu kumbuyo, ndi chipinda chopumira mpweya. Nkhungu ya mauna ndiye thupi lalikulu la nkhungu. Popeza nkhungu ya mauna imalukidwa ndi waya wachitsulo kapena pulasitiki wokhala ndi mainchesi a 0.15-0.25mm, singathe kupangidwa payokha ndipo iyenera kumangiriridwa pamwamba pa nkhungu kuti igwire ntchito.
Chibowo chakumbuyo kwa nkhungu ndi chibowo chopangidwa ndi makulidwe ndi mawonekedwe enaake omwe amagwirizana kwathunthu ndi malo ogwirira ntchito a nkhungu, poyerekeza ndi mpando wa nkhungu. Zibowo zozungulira ndi zopingasa ndi chipolopolo chokhala ndi makulidwe enaake a khoma. Malo ogwirira ntchito a nkhungu amalumikizidwa ndi chibowo chakumbuyo ndi mabowo ang'onoang'ono ogawidwa mofanana.
Chifanizirocho chimayikidwa pa chitsanzo cha makina oumbira kudzera pa mpando wa chifanizirocho, ndipo chipinda cha mpweya chimayikidwa mbali ina ya chitsanzocho. Chipinda cha mpweya chimalumikizidwa ndi dzenje lakumbuyo, ndipo palinso njira ziwiri za mpweya wopanikizika ndi vacuum pamenepo.
02Kupanga nkhungu
Chiboliboli chopangira mawonekedwe ndi chiboliboli chomwe chimalowa mwachindunji mu pepala lonyowa lopanda kanthu pambuyo popangidwa ndipo chimagwira ntchito yotenthetsera, kupondereza, komanso kutaya madzi m'thupi. Zinthu zopangidwa ndi chiboliboli chopangira mawonekedwe zimakhala ndi malo osalala, kukula kolondola, kulimba, komanso kulimba bwino. Zipangizo zotayidwa patebulo zimapangidwa pogwiritsa ntchito chiboliboli ichi. Mu ma CD a mafakitale, zinthu zazing'ono, zolondola, komanso zazikulu zimapakidwa mzere ndi mzere, ndipo zinthu zopakidwa zimagwiritsidwa ntchito poyika pakati pa mzere uliwonse. Ngati zinthu zopangidwa ndi zamkati zimagwiritsidwa ntchito, ziyenera kupangidwa pogwiritsa ntchito ziboliboli zopangira mawonekedwe.
Komabe, zinthu zambiri zopangira ma CD m'mafakitale zimagwira ntchito mbali imodzi ndipo sizifuna kutentha. Zitha kuumitsidwa mwachindunji. Kapangidwe ka nkhungu yopangira mawonekedwe kamakhala ndi nkhungu yozungulira, nkhungu yopingasa, nkhungu ya mesh, ndi chinthu chotenthetsera. Nkhungu yopingasa kapena yopingasa yokhala ndi nkhungu ya mesh ili ndi mabowo otulutsa madzi ndi utsi. Panthawi yogwira ntchito, pepala lonyowa lopanda kanthu limafinyidwa koyamba mkati mwa nkhungu yopangira mawonekedwe, ndipo 20% ya madzi imafinyidwa ndikutulutsidwa. Panthawiyi, kuchuluka kwa madzi mu pepala lonyowa lopanda kanthu ndi 50-55%, zomwe zimapangitsa kuti madzi otsala pambuyo poti pepala lonyowa lopanda kanthu litenthedwe mkati mwa nkhunguyo kuti lisungunuke ndi kutulutsa. Pepala lonyowa lopanda kanthu limakanikizidwa, kuumitsidwa, ndikupangidwa kuti lipange chinthu.
Chiboliboli cha mauna chomwe chili mu chiboliboli chingayambitse zizindikiro za mauna pamwamba pa chinthucho, ndipo chiboliboli cha mauna chingawonongeke mwachangu mukachitulutsa pafupipafupi. Pofuna kuthetsa vutoli, wopanga nkhungu wapanga chiboliboli chopanda mauna, chomwe chimapangidwa pogwiritsa ntchito zitsulo za ufa wozungulira zopangidwa ndi mkuwa. M'zaka ziwiri zapitazi, pambuyo pa kusintha kambiri kwa kapangidwe kake komanso kusankha kukula koyenera kwa tinthu ta ufa, nthawi ya moyo wa chiboliboli chopanda mauna chomwe chimapangidwa ndi kuwirikiza ka 10 kuposa chiboliboli cha mauna, ndi kuchepetsa mtengo ndi 50%. Zinthu zopangidwa ndi mapepala zomwe zimapangidwa zimakhala ndi mawonekedwe olondola kwambiri komanso osalala mkati ndi kunja.
03Hot Pressing Mold
Pambuyo pouma, pepala lonyowa lopanda kanthu limasinthika. Zigawo zina zikasintha kwambiri kapena zikafuna kuoneka bwino kwambiri, chinthucho chimasinthidwa, ndipo nkhungu yomwe imagwiritsidwa ntchito imatchedwa nkhungu yopangira. Nkhungu iyi imafunanso zinthu zotenthetsera, koma ikhoza kuchitika popanda nkhungu ya maukonde. Zinthu zomwe zimafuna kupangidwa ziyenera kusunga chinyezi cha 25-30% panthawi youma kuti zithandize kupanga.
Pakupanga, zimakhala zovuta kulamulira kuchuluka kwa madzi, zomwe zimapangitsa kuti zinthuzo zikhale zovuta kukwaniritsa zofunikira za khalidwe. Wopanga wapanga nkhungu yopangira ma spray, ndipo mabowo opopera amapangidwa pa nkhungu yofanana ndi zigawo zomwe zimafunika kupangidwa. Pogwira ntchito, zinthuzo zimayikidwa mu nkhungu yopangira ma shaping zitauma bwino. Nthawi yomweyo, dzenje lopopera pa nkhungu limagwiritsidwa ntchito popopera ma spray hot. Nkhungu iyi ndi yofanana pang'ono ndi chitsulo chopopera m'makampani opanga zovala.
04Kusamutsa Nkhungu
Chikombole chosamutsira ndi malo omalizira ogwirira ntchito yonse, ndipo ntchito yake yayikulu ndikusamutsa mosamala chinthucho kuchokera ku chikombole chothandizira chofunikira kupita ku thireyi yolandirira. Pa chikombole chosamutsira, kapangidwe kake kayenera kukhala kosavuta momwe zingathere, ndi mabowo okokera okonzedwa bwino kuti zitsimikizire kuti chinthucho chikhoza kunyamulidwa bwino pamwamba pa chikombole.
05Kudula Nkhungu
Pofuna kuti zinthu zopangidwa ndi mapepala zikhale zoyera komanso zokongola, zinthu zopangidwa ndi mapepala zomwe zimaoneka bwino zimakhala ndi njira zodulira m'mphepete. Zinyalala zodulira zimagwiritsidwa ntchito kudula m'mphepete mwa zinthu zopangidwa ndi mapepala, zomwe zimadziwikanso kuti zinyalala zodulira m'mphepete.
Nthawi yotumizira: Okutobala-20-2023