Chowongolera thovu cha PVC ndi chowonjezera cha polima chomwe chimagwiritsidwa ntchito kukonza magwiridwe antchito a zinthu zopangidwa ndi thovu la PVC. Ntchito zake zazikulu ndikuwonjezera mphamvu yosungunuka, kulimbikitsa kufanana kwa maselo a thovu, kupewa kugwa kwa maselo, komanso kukonza magwiridwe antchito a makina. Izi ndi njira yofotokozera bwino za owongolera thovu la PVC:
1. Udindo wa wowongolera thovu wa PVC
Konzani mphamvu yosungunuka: letsani thovu kuti lisaphulike kapena kugwirizanitsana panthawi yotulutsa thovu, ndipo pangani kapangidwe ka selo kukhala kofanana.
Kapangidwe kokhazikika ka maselo: kumachepetsa kugwa kwa maselo, kumawonjezera mphamvu ya makina ndi ubwino wa pamwamba pa chinthucho.
Konzani magwiridwe antchito a processing: Konzani bwino mphamvu za rheological za PVC melt kuti ikhale yoyenera kwambiri pa extrusion, rolling, kapena injection molding processes.
Kusintha kuchuluka kwa thovu: kuwongolera kukula ndi kufalikira kwa ma pores a thovu kuti akwaniritse zotsatira zopepuka zomwe mukufuna.
2. Kugawa kwa zosinthira thovu za PVC
(1) Yogawidwa m'magulu malinga ndi kapangidwe ka mankhwala
Ma ester a acrylic (mtundu wa ACR): omwe amapezeka kwambiri, monga methyl methacrylate (MMA) - butyl acrylate (BA) copolymers, ali ndi mphamvu zabwino kwambiri zolimbitsa kusungunuka.
Styrene acrylonitrile (mtundu wa SAN): Ili ndi kukana kutentha bwino ndipo ndi yoyenera kugwiritsa ntchito thovu lotentha kwambiri.
MBS (methyl methacrylate butadiene styrene): Ili ndi ntchito zolimbitsa komanso zowongolera thovu.
(2) Kugawidwa m'magulu malinga ndi mawonekedwe enieni
Mtundu wa mafuta odzola: amagwiritsidwa ntchito mwachindunji popaka thovu la PVC (monga chikopa chopangira, mapepala ophimba).
Mtundu wa ufa: umagwiritsidwa ntchito popanga PVC yolimba ndi thovu (monga ma board a thovu opangidwa ndi laminated, ma profiles).
3. Kugwiritsa ntchito PVC thovu regulator
| malo ogwiritsira ntchito | zinthu wamba | Zofunikira za woyang'anira |
| Kukongoletsa zomangamanga | Bolodi la thovu la PVC, bolodi lozungulira, mbiri yamatabwa yoyerekeza | Mphamvu yosungunuka kwambiri, kukula kwa ma pore ofanana, komanso kukana nyengo bwino |
| Mkati mwa Magalimoto | Chida choimbira, chitseko, denga | Fungo lochepa, kukana kutentha kwambiri komanso kukana ukalamba |
| zipangizo zopakira | Ma phukusi a buffer, mathireyi a chakudya | Sizowopsa ndipo zimagwirizana ndi miyezo ya FDA |
| Zipangizo za nsapato ndi chikopa chopangidwa | Chikopa cha thovu cha EVA/PVC, chopangidwa ndi thovu | Kufewa kwabwino komanso kulimba mtima kwambiri |
4. Zinthu zosankhidwa za PVC thovu regulator
Njira zopangira thovu (kutulutsa thovu popanda kugwiritsa ntchito mankhwala, kutulutsa thovu pakhungu, kutulutsa thovu pogwiritsa ntchito mankhwala, kutulutsa thovu la thupi)
Ukadaulo wokonza (kutulutsa, kupanga jakisoni, kupukuta)
Fomula ya PVC (PVC yolimba, PVC yofewa, njira yodzazira)
Mtundu wa chothandizira thovu (chothandizira thovu cha AC OBSH、Sodium bicarbonate, ndi zina zotero.
5. Mitundu yodziwika bwino pamsika*
-Makampani akunja:
-Paraloin Chemistry™K-400）
-Akoma (Durastrength) ®）
-Mitsubishi Liyang (Metablen) ®）
-Ma brand akunyumba:
-Nippon Chemical (mndandanda wa ACR)
-Ruifeng High Zipangizo (RF Series)
-BGulu la ontecn (Mndandanda wa KF)
Nthawi yotumizira: Epulo-10-2025
