jekeseni akamaumba njira PVC zakuthupi

PVC zakuthupi ndi zotsika mtengo, mwachibadwa odana ndi kutupa, zolimba ndi amphamvu, zabwino mankhwala kukana, shrinkage mlingo wa 0.2-0.6%, mankhwala kwambiri ntchito zipangizo zamagetsi, makina, zomangamanga, zofunika tsiku ndi tsiku, zidole, ma CD, chifukwa makhalidwe a PVC zakuthupi, kusanthula mankhwala jekeseni akamaumba ndondomeko motere:

一、Katundu wa PVC zipangizo

PVC matenthedwe bata ndi osauka, akamaumba kutentha ndi kuwonongeka kutentha ndi pafupi, kusayenda osauka, maonekedwe zosavuta kupanga zolakwika zoipa, PVC chuma kukana kutentha si zabwino, zosavuta kutentha, acidic mpweya ndi dzimbiri nkhungu, processing. akhoza kuwonjezera plasticizer kuonjezera fluidity, - zambiri ayenera kuwonjezera zina ntchito, mphamvu zake, kutchinjiriza magetsi, kukana mankhwala.

二、Nkhungu ndi chipata kapangidwe

Kuti mufupikitse kuzungulira kwa jakisoni, kufupikitsa doko la jakisoni kumakhala bwinoko, gawolo liyenera kukhala lofanana ndi dimba, doko la jekeseni ndi 6 mm, m'munda wamaluwa, mbali yamkati ya madigiri 5, makamaka. okhala ndi zitsime zozizira, zitsime zozizira zimatha kuteteza zinthu zosasungunuka zosasunthika m'bowo, ndipo zida izi zimakhudza kumaliza komanso kulimba kwazinthu.

Malo otsetsereka akuyenera kukhala pakati pa 0.50 ndi 10 kuwonetsetsa kuti pakhomayo ili ndi zida zokwanira zotulutsira mpweya.Kukula kwa dzenje kolowera ndi 0.03-0.05mm kuya ndi 6mm m'lifupi, kapena chilolezo cha 0.03-0.05mm kuzungulira pini iliyonse ya ejector.Chovalacho chiyenera kupangidwa ndi chitsulo chosapanga dzimbiri kapena cholimba cha chrome.

mwachitsanzo, PVC akamaumba ndondomeko

PVC ndi pulasitiki yosamva kutentha.Kutentha kwambiri kapena kumeta ubweya wambiri kumayambitsa kuwonongeka ndi kufalikira mofulumira, chifukwa chimodzi mwa zinthu zowonongeka (monga asidi kapena HCI) zidzakhala ndi zotsatira zochititsa chidwi, zomwe zimabweretsa kuwonongeka kwa ndondomekoyi, ndipo asidi adzawononga zitsulo ndikuzisintha.Ngati chitsulocho chadetsedwa, chitsulo choteteza chimang'ambika, zomwe zimayambitsa dzimbiri, zomwe zimavulaza thupi la munthu.Chiyerekezo chodziwika bwino cha screw length-diameter ndi 18 ~ 24: 1, chiŵerengero cha magawo atatu ndi 3: 5: 2, ndipo chiŵerengero cha kuponderezana ndi 1.8 ~ 2.Kuzama kwa screw groove mu gawo lodyetserako kumalimbikitsidwa motere:

Kuthamanga kwa jakisoni kuyenera kukhala kocheperako, apo ayi kumeta kwambiri kungawononge zinthuzo.Mukamagwiritsa ntchito UPVC kupanga zinthu zosalala kwambiri zokhala ndi mipanda, liwiro la jakisoni lamitundu yambiri liyenera kugwiritsidwa ntchito.Ngati mikwingwirima yofiirira ituluka pachipata, ndiye kuti liwiro la jakisoni ndilokwera kwambiri.mwachangu.

Nsonga ya screw iyenera kukhala ndi ngodya yamkati ya madigiri 25-30.Pamene screw ili m'malo, mtunda pakati pa nsonga ndi mphuno uyenera kukhala 0.7 ~ 1.8mm.Chophimbacho chiyenera kupangidwa ndi chitsulo chosapanga dzimbiri kapena chrome-plated.

1)Screw gasket: The screw gasket ili pakati pa 2 ~ 3mm, ndipo mwayi waukulu ndi waukulu.

2)Voliyumu ya jakisoni: Nthawi yeniyeni yokhalamo sayenera kupitilira mphindi zitatu.

3) Kutentha kwa mbiya:

Kutentha komwe kumaperekedwa kumangotchulidwa kokha, ndipo kusintha koyenera kumapangidwa molingana ndi mikhalidwe yeniyeni ya makina ndi zipangizo zopangira, zomwe zingathenso kupitirira malire ovomerezeka.

Kutentha kwa gawo lapakati kudyetsa gawo lakutsogolo la nkhungu nozzle (0C) 30-60 170-190 160-180 150-170

Voliyumu ya jakisoni yomwe imagwiritsidwa ntchito pa 140-160 ndi 20 ~ 85% ya kuchuluka kwa jakisoni wamakina.Kuchepa kwa kuchuluka kwa jakisoni komwe kumagwiritsidwa ntchito, kumatenga nthawi yayitali kusungira zinthu komanso chiopsezo chowonongeka chikatenthedwa.cin.com

4) Nthawi yokhala mgolo:

Pansi pa kutentha kwa 2000C (rabala zakuthupi), nthawi yochuluka yokhalamo ya mbiya imatha kupitirira mphindi 5, pamene kutentha ndi 2100C.

5) Kuthamanga kwa jekeseni:

Kuthamanga kwa jakisoni kuyenera kukhala kocheperako, apo ayi, zinthuzo zitha kuwonongeka chifukwa chameta kwambiri.Kuthamanga kwa jekeseni kwamagawo angapo kuyenera kugwiritsidwa ntchito mukamagwiritsa ntchito UPVC kuti mupange zinthu zosalala kwambiri zapakhoma.Ngati pali mikwingwirima yofiirira yoturuka pachipata, ndiye kuti liwiro la jakisoni ndilokwera kwambiri.mwachangu.