Me pēhea te hanga i te taiapa PVC? He aha te mea e kiia nei ko te Extrusion?

Ka hangaia te taiapa PVC mā te mīhini whakaputa tīwiri takirua.

He tukanga hanga tere te whakaputa PVC, ka rewahia te kirihou mata, ka hangaia hei kōtaha roa tonu. Ka puta mai ngā hua pēnei i ngā kōtaha kirihou, ngā paipa kirihou, ngā reera papa PVC, ngā anga matapihi PVC, ngā kiriata kirihou, ngā whāriki, ngā waea, me ngā kōtaha taiapa PVC, e whakamahia whānuitia ana i roto i ngā mara maha.

Ka tīmata tēnei tukanga whakaputanga mā te whāngai i te matū PVC mai i te hōpu ki roto i te oko o te extruder. Ka rewa haeretia te matū e te kaha miihini i hangaia e ngā tīwiri hurihuri me ngā whakamahana kua whakaritea i te taha o te oko. Kātahi ka akiakihia te polymer rewa ki roto i te mata, e kiia ana ko ngā pokepoke whakaputanga, e hanga ana i te matū PVC ki tētahi āhua motuhake, pērā i te pou taiapa, te reera taiapa, ngā pou taiapa rānei ka whakapakeke i te wā e whakamatao ana.

I roto i te whakaputanga PVC, ko te rauemi mata he paura e tukuna ana mai i te hopper e mau ana i runga ki roto i te oko o te extruder. He maha ngā wā ka whakamahia ngā tāpiringa pēnei i te pigment, ngā aukati UV me te PVC stabilizer, ā, ka taea te whakaranu ki te kapia i mua i te taenga ki te hopper. Nō reira, mō te hanga taiapa PVC, ka tūtohu mātou ki ō mātou kiritaki kia kotahi noa te tae i roto i te ota kotahi, ki te kore ka nui te utu mō te whakawhiti i ngā pokepokea extrusion. Heoi, ki te mea me whai kōtaha tae ngā kiritaki i roto i te ota kotahi, ka taea te kōrero taipitopito.

He rite tonu te tukanga ki te whakahāngai kirihou mai i te tirohanga o te hangarau extruder, ahakoa he rerekē nā te mea he tukanga tonu tonu. Ahakoa ka taea e te pultrusion te tuku i ngā kōtaha rite tonu i roto i ngā roa tonu, me te whakapakari anō hoki, ka tutuki tēnei mā te tango i te hua kua oti i roto i te pokepoke hei utu mō te whakaputa i te rewa polymer mā roto i te pokepoke. Arā, ko ngā roa kōtaha taiapa, pērā i ngā pou, ngā reera, me ngā pou, ka taea te whakarite katoa i roto i ngā roa motuhake. Hei tauira, ko te taiapa tūmataiti katoa he 6 putu te teitei, 8 putu te whānui, ka taea hoki te 6 putu te teitei, 6 putu te whānui. Ko ētahi o ā mātou kiritaki, ka hoko rātou i ngā rauemi taiapa mata, kātahi ka tapahia kia rite ki ngā roa motuhake i roto i tā rātou awheawhe, ā, ka hanga i ngā taiapa rerekē hei whakatutuki i ngā hiahia katoa o ā rātou kiritaki.