He aha te ngongo karati?

1. Mīhini hanga paipa HDPE mīhini hanga paipa kōpikopiko

He ngongo karati he ngongo whakakā wera-kiato teitei  polyethylene (HDPE)  ngongo pakitara hanganga takai. He mea hanga te paipa karati ki te kapia polyethylene matotoru-teitei hei rauemi mata matua, ma te whakamahi i te tukanga takai wera, me te  polypropylene (PP)paipa kōpikopiko pakitara kotahi hei hanganga tautoko hei hanga i tētahi paipa pakitara hanganga motuhake me te ātete ki te pēhanga o waho.

2. Te whakarōpūtanga o ngā ngongo karati?

Ka taea te wehewehe i ngā hua ngongo karati ki ngā raupapa e whā: PR, OP, SQ me VW:

—— PR, OP: e whakamahia ana hei paipa waikeri tanumia;

——SQ: E whakamahia ana mō te hanga ipu, poka wai rānei;

——VW: E whakamahia ana mō ngā tī, ngā tuke, me ngā hononga paipa tuarua kua tukatukahia;

Ko te hua e whakamahia whānuitia ana ko te raupapa PR, he maeneene te mata o roto, ā, he hanganga whakakaha motuhake te āhua o waho. Ko te roa paerewa o te paipa he 6 mita, ā, ko te whānuitanga o te diameter o roto o te paipa he DN300-DN4000. Ka tutuki katoa ngā tohu hua i ngā paerewa taiepa hanganga momo-B GB/T 19472.2-2017. Ngā paerewa paipa me ngā whakaritenga paerewa Pākehā EN-13476.

3. He aha ngā painga o ngā ngongo karati?

(1) Te whakarewa kounga teitei:

Ka whakamahia te whakahāngai takai wera hei whakarite i te kounga teitei o ngā hononga whakarewa o te paipa, me te whakarei ake i te kaha ki te tu atu i te pēhanga o waho.

(2) Te tāutanga watea:

Ka whakamahia te hangarau hononga fiusi hiko kua whakauruhia ki roto i te putanga hiko mō te hononga paipa, ka kore ai e turuturu te wai, ka whakaiti i ngā utu hanga me te whakapoto i te wā hanga.

(3) Te ngāwari me te pakari:

He ngāwari te āhua o ngā paipa karati, ā, ka taea te whakaiti i te kino me te ngaronga o ngā paipa ina puta he rū whenua, he taunga whenua kāore i te ōrite, me ētahi atu mahi whenua; engari he pakari ngā wāhanga paipa o te rohe, ā, he kaha ki te tu atu i te pēhanga o waho. Ina whakamahia ki ngā rori taumaha rawa, ka taea te whakarite i te haumaru o ngā waka.

(4) He pai mō te taiao, ā, he roa hoki:

He mea hanga ki te polyethylene kiato-teitei, kāore e hiahiatia he maimoatanga ārai-waikura, he roa te ora mahi neke atu i te 50 tau, ā, ka taea te hangarua me te whakamahi anō.

(5) He iti te taratara o te pakitara o roto, ā, he nui te kaha tuku wai.

Ko te taratara o roto o te pakitara o te paipa pakitara hanganga he tata ki te 0.010, nō reira he iti te waku motuhake i te wa e kawe ana i te wai, ā, ka taea te whakanui ake i te kaha tuku wai ki te whakaritea ki ngā paipa sima i raro i ngā tikanga whakamahinga ōrite.

4. He aha ngā wāhi tono o ngā ngongo karati?

Ko ngā paipa karati e whakamahia nuitia ana mō te waikeri whenua o te tāone, te tukunga paru, te kohikohi wai ua, te kawe wai, te whakapūhautanga, me ētahi atu. Ka taea te whakamahi hei paipa turuturu me te waikeri mō ngā rēriwe, ngā huarahi tere, ngā papa korowha, ngā papa whutupaoro, me ētahi atu.

Nā te mea he tino pai te ātete o ngā rauemi polyethylene me te polypropylene ki te waikawa, ki te kawakore me te waikura, he whānuitia te whakamahinga i roto i te mana karihi, ngā tipu maitai, ngā tipu mana, ngā matū hinu, ngā tauranga, ngā teihana me ētahi atu mara, inā koa i ngā papa tai, ngā whenua tote-kawakore, ngā moenga awa raro moana, te whakawhānui i te turanga ngohengohe. He tino painga tēnei i roto i ngā taiao uaua pēnei i te oneone me ngā rohe rū whenua.

5. Ngā paerewa whakatinanatanga:

GB / T 19472.2-2017  Polyethylene (PE)  ngā pūnaha paipa pakitara hanganga mō te whakamahinga i raro i te whenua

 Wāhanga 2: Pakitara hanganga i pakaruhia e te polyethylene https://www.jwell-group.com/Sheetplate-extrusion-machine/hdpepp-t-grip-sheet-extrusion-linepipes.