Te whakaputanga o te TPU (Thermoplastic Polyurethane)

1. Te Whakarite Rauemi

• Te Whare Tiaki TamarikiKōwhiringa Pēreti: KōwhiriNgā pireti TPUme te pakeke e tika ana (te pakeke o te takutai, mai i te 50A ki te 90D), te taupū rere rewa (MFI), me ngā āhuatanga mahi (hei tauira, te ātete nui ki te pakū, te ngāwari, me te ātete matū) e ai ki ngā whakaritenga o te hua whakamutunga.
• Te whakamaroke:Te Whare Tiaki TamarikiHe waiora te wai, nō reira me whakamaroke i mua i te whakaputanga hei tango i te makuku. Ka taea e te makuku te whakaputa i ngā mirumiru, ngā hapa o te mata, me te whakaiti i ngā āhuatanga hangarau o ngā hua kua whakaputangahia. Ko te tikanga ka whakamarokehia i te pāmahana i waenga i te 80 – 100°C mō ngā haora 3 – 6.

2. Tukanga Whakaputa

• Ngā Wāhanga Extruder
  • Pēra: Ka whakamahanahia te pēra o te extruder ki ngā rohe maha hei whakarewa mārire i ngā pirepire TPU. Ka āta whakatakotoria te āhua pāmahana kia tika ai te whakarewa me te kore e wera rawa te rauemi, ka pakaru pea. Hei tauira, ko te pāmahana o te rohe whāngai ka tata ki te 160 – 180°C, ko te rohe pēhitanga ka tata ki te 180 – 200°C, me te rohe ine ka tata ki te 200 – 220°C, engari ka rerekē pea ēnei uara i runga i te taumata TPU.
  • Tīwiri: Ka huri te tīwiri i roto i te oko, e kawe ana, e pēhi ana, e whakarewa ana hoki i teNgā pireti TPU.Ka pā pea ngā hoahoa tīwiri rerekē (hei tauira, ngā mīhini whakaputa tīwiri kotahi, tīwiri takirua rānei) ki te whakaranu, ki te pai o te rewa, me te tere putanga o te tukanga whakaputa. Ko ngā mīhini whakaputa tīwiri takirua he pai ake te whakaranu me te rewa ōrite, inā koa mō ngā hanganga uaua.
• Te Rewa me te Whakaranu: I te nekenga o ngā pirepire TPU i roto i te oko, ka rewa haere mā te whakakotahitanga o te wera mai i te oko me te kutikuti i puta mai i te hurihanga o te tīwiri. Ka whakaranua pai te TPU rewa kia rite ai te rewa.
• Te Hoahoa me te Hanga i ngā Mate: Kātahi ka panaia te TPU rewa mā roto i te mate, e whakatau ana i te āhua whakawhiti-wāhanga o te hua kua whakapūtāhia. Ka taea te whakarite i ngā mate kia puta ai ngā āhua rerekē, pērā i te porowhita mō ngā ngongo, te tapawhā rite mō ngā kōtaha, te papatahi rānei mō ngā rau me ngā kiriata. I muri i te haerenga mā roto i te mate, ka whakamataohia, ka whakapakeketia te TPU kua whakapūtāhia, mā te haere mā roto i te kaukau wai, mā te whakamahi rānei i te whakamatao hau.

3. Tukatuka Whai muri

• Te Whakatikatika me te Rahi: Mō ētahi hua kua whakaputahia, me mahi te whakatikatika me te rahi kia tika ai ngā ine. Tērā pea ka uru atu ki tēnei te whakamahi i ngā ringaringa whakatikatika, ngā tāke rahi korehau, ētahi atu taputapu rānei hei whakahaere i te diameter o waho, te matotoru, ētahi atu ine nui rānei o te hua.
• Te Tapahi, te Takahuri rānei: I runga i te whakamahinga, ka tapahia te hua TPU kua whakaputahia kia rite ki ngā roa kua whakaritea (mō ngā kōtaha, ngā ngongo, me ētahi atu) ka takaihia rānei ki ngā rōra (mō ngā rau me ngā kiriata).