Pūwero tīwiri takirua whakarara mō te paipa me te kōtaha PVC
1. Te pakeketanga i muri i te whakapakeketanga me te whakamātao: HB280-320.
2. Te pakeke o te hauota: HV920-1000.
3. Te hohonutanga o te pouaka hauota: 0.50-0.80mm.
4. Te pakarukaru o te hauota: iti iho i te taumata 2.
5. Te taratara o te mata: Ra 0.4.
6. Te tika o te tīwiri: 0.015 mm.
7. Te pakeke o te mata o te whakakikoruatanga chromium i muri i te nitriding: ≥900HV.
8. Te hohonutanga o te whakakikoruatanga konukōmiuma: 0.025~0.10 mm.
9. Te pakeke o te koranu: HRC50-65.
10. Hōhonutanga o te koranu: 0.8~2.0 mm.
He mea nui te mahi a ngā oko tīwiri papatahi mā rua i roto i te hanga paipa me ngā kōtaha PVC. Ko ōna whakamahinga i roto i ēnei mara e rua kua whakarārangihia i raro nei: Te whakakirihou me te whakaranu i ngā rauemi: Ka rewa katoa te oko tīwiri, ka whakaranua te kapia PVC me ētahi atu tāpiringa mā te tīwiri hurihuri me te wāhi whakamahana. Mā tēnei ka ngawari te tukatuka me te hanga i te rauemi PVC. Te whakahāngai whakaputa: I raro i te mahi a te oko tīwiri, ka whakaputahia te rauemi PVC rewa mā roto i te mate hei hanga i tētahi hua ngongo, āhua kōtaha rānei.
Mā te hoahoa me te whakatikatika i te oko tīwiri ka taea te hanga paipa me ngā kōtaha o ngā āhua me ngā rahi rerekē. Te whakamatao me te whakapūmau: I muri i te whakaputanga, ka tere te whakamatao o te paipa, o te kōtaha rānei mā roto i tētahi pūnaha whakamatao hei whakapūmau i te rauemi me te pupuri i tōna āhua. Te tapahi me te kutikuti: Whakamahia ngā taputapu pēnei i ngā mīhini tapahi me ngā mīhini kutikuti hei whakatikatika i te rahi me te whakaoti i te tukanga o ngā paipa me ngā kōtaha whakaputanga. I roto i te poto, he mahi nui tā te oko tīwiri-rua papatahi i roto i te tukanga whakaputa o ngā paipa me ngā kōtaha PVC, e whakatutuki ana i te whakakirihou, te whakaranu, te hanga whakaputanga me te tukatuka i muri mai o ngā rauemi, e whakarite ana i te kounga me te mahi o te hua whakamutunga.
