Te tukanga whakaputa ngongo PVC:
Whakaranu → te pokepoke → te tangohanga granulation → te hanga tangohanga → te kuititanga → te kowiri → te takai → te tirotiro kounga → te hua kua oti
1. Te pokepoke i nga kai
Ko nga momo rauemi mata katoa ka ata paunatia, ka maka ki roto ki te pokepoke i runga i te raupapa.Te raupapa whangai: PVC resin, plasticizer, stabilizer, lubricant.Ka tae te pāmahana ki te 100 ~ 110 ℃, ka taea te tuku i te rauemi.
2.extrusion granulation
Tenei tukanga ki te whakahaere i te pāmahana, te wāhi teitei o te pāmahana rauemi kia mana ki runga ake i te pāmahana rewa o te rauemi, raro atu i te extrusion niao pāmahana, ara, i waenganui i 155 ~ 160 ℃.Me tutuki te tikanga o te whakakotahitanga me te whakakikoruatanga tuatahi.
Ko te pāmahana o ia rohe o te granulator e whai ake nei:
Te horahanga 80 ~ 90 ℃;Te horahanga 130 ~ 140 ℃;E toru nga waahi 140 ~ 150 ℃;Ka timata mai i te 150 ~ 160 ℃.
3. ngongo tangohanga hanga
He paku teitei ake te pāmahana o te hanga ngongo extrusion.I te nuinga o te waa, ko te maarama o te putorino e pa ana ki te pāmahana hanga.I roto i tetahi awhe pāmahana, he pai te marama o te pāmahana teitei, me te rereke.I te wa ano, ka pa te tere o te kumete me te tere whakamahana ki te maamaatanga o te putorino.He paku nui ake te tere o te hikoi, he tere te whakamahana, he pai ake te maarama o te putorino.Ko te tikanga 10%~ 15% tere atu i te tere tangohanga.Ko te whakamahana o te ngongo puataata ka rehutia ki te wai matao i te mate o te ihu ka whakamatao ki roto i te taika wai.
Ko te pāmahana o ia rohe o te whakarewanga whakarewa he penei:
Rohe 1:90 ℃;Rohe tuarua 140 nekehanga 5℃;E toru nga wahanga 160 nekehanga 5℃;E wha nga waahi 170 nga nekehanga 5℃.
4. Whakatupato i te ngongo ngongo PVC:
1. tika ki te niao paura extrusion, te pāmahana o te extruder ko e pā ana ki 5 ℃ raro atu ki te rauemi kirikiri.
2. I tua atu i te diameter iti (φ60mm i raro) o te ngongo te meangiti parakore kaore e hiahiatia kia pupuhihia ki roto i te hau kapi, me pupuhi te diameter nui o te ngongo whakamatao ki roto i te ngongo ngongo hau kopeke, kia pai ai te te tika me te pumau o te rahi o te diameter ngongo.Kia tupato ki te pehanga pumau o te hau kōpeke.
3. Kia tupato ki te pumau o te tere o te kumete me te karo i te whakarereketanga o te diameter paipa, te matotoru o te pakitara ranei na te koretake o te hikoi.
4. Mena ka tutakina te miihini mo te wa roa, me whakakorehia me te horoi kia kore ai e raruraru nga raruraru.
Nga momo tauira tohutoro ngongo ngongo marama
1, ngongo maramara kore-paitini
PVC 100 DOP 45
ESBO 5 Dioctyl tin laurate 2
Pūmau pūhui konupora-konutea 1
Ka taea hoki e te kaiwhakapaipai te whiriwhiri glycol butyl phthalate ester (BPBG) me te waikawa citric e toru butyl ester
2. Puata ngongo ngongo
PVC 100 epoxy plasticizer 5
DOP 30 Organotin 1.5
DBP 10 Barium stearate, cadmium 1
DOA 5
3. Puata ngongo ngongo
PVC 100 ESBO 5
DOP 45 barium – cadmium wai whakapūmau 2
4. Puata ngongo ngongo
PVC 100 Zinc stearate 0.05
Cadmium stearate 1 DOP 28
Barium stearate 0.4 DBP 18
Lead stearate 0.1 te nui o te kai whakapoi
5. Puata ngongo ngongo
PVC 100 MBS 5~10
DOP 30 C-102 3
15 HSt 0.3 DBP
6. Ngongo whakaheke toto kore-paitini
PVC 100 ESBO 5
45 HSt DOP 0.5
AlSt ZnSt 0.5 0.5
Parawini 0.2
7. Puata ngongo kari
PVC 100 DOP 40
ED3 10 Barium – whakapūmau wai cadmium 1
Chelator 0.3 waikawa stearic 0.3
8. ngongo puata mo nga inu
PVC 100 DOP(DOA ranei) 50
Te konupora-konutea whakapumau wai 3 Stearic acid 0.5
9. Te ngongo whakaheke toto me te putea plasma
PVC 100 DOP 45
ESBO 5~10 konupora konutea wai stabilizer 1.5
Wā tuku: Hūrae-07-2022