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    He Aratohu Whānui A252 mō ngā Paipa Rino Taumata 2: He Pai mō ngā Kaupapa Paipa Parakaingaki Rua-Ruku

    He Aratohu Whānui A252 mō ngā Paipa Rino Taumata 2: He Pai mō ngā Kaupapa Raina Parakaingaki Rua-Rukuhia e te Āwhata Whakarewa. Whakaahua Matua
    • He Aratohu Whānui A252 mō ngā Paipa Rino Taumata 2: He Pai mō ngā Kaupapa Paipa Parakaingaki Rua-Ruku

    Whakaahuatanga Poto:

     

    He mea nui te whiriwhiri tika i ngā rauemi hei whakarite i te mahi whai hua me te roa o te ora o tō pūnaha waikeri. I roto i ngā momo kōwhiringa e wātea ana, e mōhiotia ana te paipa maitai A252 GRADE 2 mō tōna kaha me te roa o te ora, ā, kua waiho hei whiringa rongonui mō te hanga paipa waikeri takirua kua whakarewahia ki te pewa ruku (DSAW). Mā te whakakotahi i te kaha o te paipa maitai A252 GRADE 2 me te pono o te hangarau whakarewa DSAW ka hangaia he hanganga waikeri whai hua. I roto i tēnei tuhinga, ka tūhuratia e mātou ngā āhuatanga matua, ngā painga me ngā tono o te paipa maitai A252 Grade 2 i roto i ngā kaupapa waikeri DSAW.

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    Taipitopito Hua

    Ngā Tohu Hua

    Akohia ngā kōrero mō te Paipa Rino A252 Taumata 2:

    Paipa Rino A252 TAU 2He paipa maitai waro tēnei i hangaia mō te whakamahi i roto i ngā paipa pēhanga me ngā tono hanganga. He mea hanga kia rite ki ngā paerewa ASTM (American Society for Testing and Materials), kia mau ai ngā paerewa kounga teitei me te tika o ngā āhuatanga. Ko te tohu GRADE 2 e tohu ana ka hangaia te paipa maitai mā te whakamahi i te whakarewa pewa ruku, i ngā tikanga whakarewa kore hononga rānei.

    Te hiranga o te whakarewa pewa rua-uru:

    Te whakarewa pewa rua e rukuhia ana, e mōhiotia ana ko DSAW, he tukanga whakarewa tino motuhake e whakamahia ana hei hono i ngā wāhanga o te paipa maitai A252 GRADE 2. He maha ngā painga o te DSAW i runga i ētahi atu tikanga whakarewa, tae atu ki te pai o te hanganga whakarewa, te tere whakarewa teitei, te iti o te hē, me te whakahaere pai o te wera e whakaurua ana. Ka whakarite i te hononga kaha i waenga i ngā paipa, ka iti ake te tūponotanga ki te turuturu, te waikura me te kino o te hanganga.

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    Te roanga iti rawa
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    Pūngao pānga iti rawa
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    i te pāmahana whakamātautau o
     

    <16

    ＞16≤40

    <3

    ≥3≤40

    		 ≤40

    -20℃

    0℃

    20℃
    S235JRH

    235

    225

    360-510

    360-510

    24

    -

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    S275J0H

    275

    265

    430-580

    410-560

    20

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    27

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    S355J0H

    365

    345

    510-680

    470-630

    20

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    27

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    S355J2H

    27

    -

    -
    S355K2H

    40

    -

    -

    He aha i whakamahia ai te paipa maitai A252 Grade 2 mō ngā kaupapa waikeri?

    1. KAHA ME TE PAURANGI TINO HIRANGA: He kaha nui te kume o te paipa maitai A252 TAU 2, ā, he ātete ki ngā ahotea me ngā pēhanga o waho. Mā te pakari ka roa ake te ora o te mahi, ka whakaiti i te hiahia mō te whakakapinga, te whakatikatika rānei i ngā wā katoa.

    2. Ātete ki te Waikura: Kua hangaia te paipa maitai A252 GRADE 2 kia tū atu ki ngā āhuatanga kino o raro whenua, tae atu ki te pānga ki te paru, ki ngā matū me te makuku, me te kore e waikura, e pirau rānei. Mā tēnei āhuatanga ka roa ake te ora o ngā paipa paru.

    3. He iti te utu: He otinga whai hua te paipa maitai A252 Grade 2 mō te hanga paipa waikeri. Nā te iti o ngā whakaritenga tiaki me te roa o te ora, ka taea e ngā kaunihera me ngā kaiwhakatū kaupapa te penapena nui i roto i te wā.

    Ngā Tukanga Whakarewa Paipa

    Te whakamahinga o te paipa maitai A252 taumata 2 i roto i te hangarau waikeri:

    He whānuitia te whakamahinga o te paipa maitai A252 GRADE 2 i roto i ngā kaupapa hanganga waipara maha, tae atu ki:

    1. Pūnaha parakaingaki ā-tāone: E whakamahia whānuitia ana ngā paipa maitai A252 Tau 2 i roto i te hanganga o ngā paipa parakaingaki ā-pūnaha ā-tāone hei kawe tika i ngā parakaingaki mai i ngā wāhi noho me ngā wāhi arumoni ki ngā tipu maimoatanga.

    2. Pūnaha Parakaingaki Ahumahi: Me whai pūnaha parakaingaki pakari ngā whare ahumahi hei whakahaere i te tukunga parakaingaki mai i ngā wāhanga hanga me ētahi atu whare. Mā te paipa maitai A252 GRADE 2 ka whakaratohia te kaha me te manawanui e tika ana mō tēnei momo tono paipa parakaingaki ahumahi.

    Hei whakamutunga:

    Ina tae mai kite raina waikeriI roto i te hanganga, ko te paipa maitai A252 GRADE 2 i honoa ki te hangarau whakarewa DSAW e whakarato ana i te kaha, te roa me te mahi whānui e kore e taea te whakataurite. Ko tōna ātete ki te waikura, te kaha kume pai rawa atu me te whai huatanga o te utu e pai ai mō ngā kaupapa hanganga waikeri maha. Mā te tango i ēnei rauemi matatau me ngā tikanga whakarewa, ka taea e ngā tāone te whakanui ake i te roa o te ora me te whai huatanga o ā rātou pūnaha waikeri, te whakaiti i ngā utu tiaki me te whakarite i tētahi taiao ma, hauora hoki mō te katoa.

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