1. Tau matotoru
Ko te tau matotoru e whakaata ana i te taumaha ngota ngota toharite o te kapia, ā, koinei te āhuatanga matua mō te whakatau i te momo kapia. Ka rerekē ngā āhuatanga me ngā whakamahinga o te kapia i runga i te matotoru. I te pikinga ake o te kaha whakapūhui o te kapia PVC, ka piki ake ngā āhuatanga ā-pūkaha pēnei i te kaha kume, te kaha pānga, te kaha whati, me te roa i te wā whati, i te mea ka heke te kaha hua. E whakaatu ana ngā hua rangahau i te pikinga ake o te kaha whakapūhui o ngā āwhina tukatuka PVC, ka pai ake ngā āhuatanga taketake o te kapia, i te mea ka heke te mahi tukatuka me te whanonga rheological. Ka kitea he hononga tata te tohatoha taumaha ngota ngota o te kapia PVC ki te tukatuka kirihou me te mahi hua.
2. Te maha o ngā matūriki poke (ngā ira pango me ngā ira kōwhai)
Ko ngā matūriki poke tētahi o ngā tohu nui mō te aromatawai i te kapia PVC. Ko ngā āhuatanga matua e pā ana ki tēnei tohu ko: tuatahi, ko te toenga o ngā rauemi i runga i te pakitara paninga o te ipu whakapūhui i horoia kia tino pai, ā, kua poke te rauemi mata i ngā poke; tuarua, ko te kakahu miihini i konatunatua ki ngā poke me te mahi hē e kawe mai ana i ngā poke; I roto i te tukanga tukatuka kirihou, ki te nui rawa ngā matūriki poke, ka pā kino ki te mahi me te whakamahinga o ngā hua PVC i hangaia. Hei tauira, i roto i te tukatuka me te hanga i ngā kōtaha, he maha ngā poke me ngā matūriki, ka puta ai he ira ki te mata o te kōtaha, ā, ka whakaiti i te āhua o te hua. Hei tāpiri, nā te kore kirihou o ngā matūriki poke, te iti rānei o te kaha ahakoa te kirihou, ka heke ngā āhuatanga miihini o te hua.
3. Ngā mea whakakorikori (tae atu ki te wai)
E whakaatu ana tēnei tohu i te ngaronga taumaha o te kapia i muri i te whakamahanatanga i tētahi pāmahana. Nā te iti o te ihirangi o ngā matū pūngāwerewere ka taea te whakaputa hiko pateko, kāore e pai mō ngā mahi whāngai i te wā tukatuka me te hanga; ki te nui rawa te ihirangi pūngāwerewere, ka ngāwari te kapia ki te piri me te kore e rere, ā, ka ngāwari te whakaputa mirumiru i te wā hanga me te tukatuka, ka pā kino ki te kounga o te hua.
4. Te mātotoru āhua
Ko te mātotoru kitea ko te taumaha mō ia rōrahi o te paura kapia PVC kāore i te pēhia. E pā ana tēnei ki te āhua o te matūriki, te rahi toharite o te matūriki, me te tohatoha rahi matūriki o te kapia. He iti te mātotoru kitea, he nui te rōrahi, he tere te mimiti o ngā mea whakapūmau kirihou, me te ngāwari o te tukatuka. Engari, ko te mātotoru rahi toharite teitei o te matūriki me te iti o te rōrahi ka arahi ki te mimiti o ngā āwhina tukatuka PVC. Mō te hanga hua mārō, kāore e nui te taumaha ngota e hiahiatia ana, ā, ko te tikanga kāore e tāpirihia ngā mea whakapūmau kirihou i te wā tukatuka. Nō reira, me iti ake te porosity o ngā matūriki kapia, engari me rere maroke te kapia, nō reira he teitei ake te mātotoru kitea o te kapia.
5. Te mimiti kirihou o te kapia
Ko te nui o te mimiti o ngā āwhina tukatuka PVC e whakaata ana i te nui o ngā pūwero i roto i ngā matūriki kapia, me te tere mimiti hinu teitei me te pūwero nui. Ka tere te mimiti o te kapia i ngā mea hanga kirihou, ā, he pai te mahi tukatuka. Mō te hanga whakarewa (pēnei i ngā kōtaha), ahakoa kāore i te tino teitei te hiahia mō te pūwero kapia, he pai te pānga mimiti o ngā pūwero i roto i ngā matūriki ki te tāpiri i ngā tāpiringa i te wā tukatuka, ka whakatairanga i te whai huatanga o ngā tāpiringa.
6. Te mā
E whakaata ana te mā i te āhua me te tae o te kapia, tae atu ki te pirau i puta mai i te ngoikore o te pumau o te wera, i te roa rānei o te wā pupuri, ka hua ake he hekenga nui o te mā. He pānga nui tō te taumata o te mā ki te ātete tawhito o ngā rākau me ngā hua.
7. Te toenga o te vinyl chloride
Ko te toenga VCM e pā ana ki te wāhanga o te kapia kāore anō kia mimitia, kia rewa rānei i roto i te monomer polyethylene, ā, he rerekē tōna kaha mimiti i runga i te momo kapia. I roto i ngā āhuatanga toenga VCM tūturu, ko ngā āhuatanga matua ko te iti o te pāmahana o runga o te pourewa tango, te rerekētanga pēhanga nui i roto i te pourewa, me te āhua ngoikore o te matūriki kapia, ka pā katoa ēnei ki te mimitinga o ngā toenga VCM, he tohu tēnei mō te ine i te taumata akuaku o ngā kapia. Mō ngā hua motuhake, pērā i te pepa tine, he putea takai kiriata mārama mārō mō ngā rongoā hauora, kāore te ihirangi VCM toenga o te kapia i te eke ki te paerewa (iti iho i te 5PPM).
8. Te pumau o te wera
Mena he nui rawa te wai i roto i te monomer, ka puta he waikawa, ka waikura te taputapu, ka hanga he pūnaha whakapūhui rino, ā, i te mutunga ka pā ki te pumau wera o te hua. Mena kei roto i te monomer te hauwai pūhaumāota, te hauwai kore utu rānei, ka pā kino ki te tauhohenga whakapūhui. He ngāwari te hanga hauwai pūhaumāota i roto i te wai, ka whakaiti i te uara pH o te pūnaha whakapūhui, ā, ka pā ki te pumau o te pūnaha whakapūhui. Hei tāpiri, ko te nui o te acetylene i roto i te monomer o te hua ka pā ki te pumau wera o te PVC i raro i te pānga tahi o te acetaldehyde me te rino, ka pā ki te mahi tukatuka o te hua.
9. Toenga o te tātari
E whakaata ana te toenga tātari i te rahi o te matūriki kāore i te ōrite o te kapia, ā, ko ngā mea matua e awe ana ko te nui o te mea whakamarara i roto i te tauira whakapūhui me te pānga whakaoho. Mena he matotoru rawa, he angiangi rawa rānei ngā matūriki kapia, ka pā ki te kounga o te kapia, ā, ka pā anō hoki ki te tukatuka o te hua i muri mai.
10. "Kanohi Ika"
Ko te "kanohi ika", e mōhiotia ana ko te ira tioata, e pā ana ki ngā matūriki kapia mārama kāore anō kia whakakirikiritia i raro i ngā tikanga tukatuka kirihou noa. Te pānga ki te hanga tuturu. Ko te take matua o te "kanohi ika" ko te mea ina nui te ihirangi o ngā matū kohua nui i roto i te monomer, ka whakarewahia te polymer i roto i ngā matūriki i te wā o te tukanga whakakirikiri, ka whakaitihia te porosity, ka whakapakeke i ngā matūriki, ā, ka noho hei "kanohi ika" rangitahi i te wā o te tukatuka whakakirikiri. Kāore i te ōrite te tohatoha o te kaiwhakaoho i roto i ngā pata hinu monomer. I roto i te pūnaha whakakirikiri me te whakawhiti wera kāore i te ōrite, ko te hanganga o te kapia me te taumaha ngota kore ōrite, te poke rānei o te tauhohenga i te wā e whāngai ana, te kapia toenga, te piri nui rānei o te rauemi tauhohenga ka taea te puta he "kanohi ika". Ko te hanganga o ngā "kanohi ika" ka pā tika ki te kounga o ngā hua PVC, ā, i roto i te tukatuka i muri mai, ka pā ki te ataahua o te mata o ngā hua. Ka tino whakaitihia hoki ngā āhuatanga miihini pēnei i te kaha kume me te roa o ngā hua, ka taea te arahi ngāwari ki te poka o ngā kiriata kirihou, ngā rau rānei, inā koa ngā hua taura, ka pā ki ō rātou āhuatanga whakamahana hiko. Ko tētahi o ngā tohu nui o te hanga kapia me te tukatuka kirihou.
Wā tuku: Pipiri-12-2024
