He aha ngā take e puta ai ngā mirumiru i te wāhanga whakawhiti o ngā pepa kirihou pahuka?

Ko tētahi take he iti rawa te kaha ā-rohe o te rewa tonu, ka puta ai ngā mirumiru mai i waho ki roto;

Ko te take tuarua, nā te iti o te pēhanga huri noa i te rewa, ka whānui haere ngā mirumiru ā-rohe, ka ngoikore haere hoki tō rātou kaha, ka hanga mirumiru mai i roto ki waho. I roto i te mahi whakaputa, kāore he rerekētanga i waenga i ngā mahi e rua, ā, tera pea kei te noho tahi rāua. Ko te nuinga o ngā mirumiru i puta mai i te whānui kore taurite o ngā mirumiru ā-rohe, ka hua ake te hekenga o te kaha rewa.

Hei whakarāpopototanga, ko te whakaputanga o ngā mirumiru i roto i ngā pepa kirihou pahuka e whai wāhi ana ki ngā āhuatanga e whai ake nei:

Ko te nuinga o te wā, e toru ngā momo whakahaere pahuka PVC e whakamahia ana mō te hanga papa pahuka PVC: te momo whakamahana, te momo werawera, te momo taurite hiato werawera me te werawera. He teitei te pāmahana pirau o te kaiwhakahaere pahuka PVC, tae atu ki te 232 ℃, he nui ake i te pāmahana tukatuka o te PVC. I te whakamahinga, me whakaheke te pāmahana pirau. Nō reira, i te wā e whakahaere ana i te pahuka o ngā rauemi PVC, ko te nuinga o te wā ka whiriwhiria ngā kaiwhakahaere pahuka PVC. He tere pahuka teitei tēnei momo kaiwhakahaere pahuka, tata ki te 190-260ml/g, he tere pirau tere, he nui te tuku wera. Heoi, he poto te wā pahuka, ā, he kaha hoki te ohorere. Nō reira, ina nui rawa te horopeta o te kaihoko pahuka PVC, ā, he nui rawa te whakaputanga hau, ka tere te piki o te pēhanga i roto i te mirumiru, ka nui rawa te rahi o te mirumiru, ā, ka tere te tukunga o te hau, ka kino te hanganga mirumiru, ka kore e ōrite te tohatoha o te rahi o te mirumiru, tae noa ki te hanganga o te hanganga pūtau tuwhera, ka puta he mirumiru nui me ngā āputa i te rohe. I te wā e hanga ana i ngā hua kirihou pahuka, kaua ngā kaiwhakahaere pahuka PVC exothermic e whakamahia ko rātou anake, engari me whakamahi tahi me ngā kaihoko pahuka endothermic, me te whakakotahi rānei me ngā kaihoko pahuka matū hiato wera me te exothermic taurite. Ko te kaihoko pahuka kore-waro - te konutai paikāpōnate (NaHCO3) he kaihoko pahuka endothermic. Ahakoa he iti te tere pahuka, he roa te wā pahuka. Ina konatunatua ki ngā kaiwhakahaere pahuka PVC, ka taea e ia te mahi tahi me te taurite. Ka whakapai ake te kaihoko pahuka PVC exothermic i te kaha whakaputa hau o te kaihoko pahuka endothermic, ko te kaiwhakahaere pahuka PVC endothermic ka whakamatao i te mea o mua, ka whakau i tōna pirau, ka whakataurite i te tukunga o te hau, ka aukati i te pirau wera o roto o ngā pereti matotoru, ka whakaiti i te maturuturu o ngā toenga, ā, ka whai pānga mā.

I runga i te whakaaro kia kaua e pā ki te tere o te pahuka, he mea tika kia tāpirihia he maha atu ngā kaiwhakahaere pahuka PVC endothermic hei whakakapi i ētahi kaihoko pahuka exothermic, kia pehi ai i te pahūtanga i puta mai i te tāpiri atu i ngā kaihoko pahuka exothermic.