Te Mārama ki te ASTM A139: Te Tūāpapa o ngā Paipa SAWH me ngā Paipa Whakarewa Porowhita

I te ao o ngā paipa ahumahi, he mea nui ngā ture me ngā paerewa e whakahaere ana i ngā rauemi e whakamahia ana hei whakarite i te haumaru, te roa me te mahi. Ko tētahi o ēnei paerewa koASTM A139, he mea nui tēnei i roto i te hanga me te whakamahi i ngā paipa SAWH (porowhita arc welded hollow) me ngā paipa porowhita welded. I roto i tēnei tuhinga, ka matapakihia e mātou te hiranga o te ASTM A139, ngā āhuatanga o te paipa SAWH, me ngā painga o te Paipa Helical Welded i roto i ngā momo ahumahi.

He aha te ASTM A139?

Ko te ASTM A139 he whakaritenga i whakawhanakehia e te American Society for Testing and Materials (ASTM) e whakamārama ana i ngā whakaritenga mō ngā paipa maitai whakarewa hiko (arc). E pā ana tēnei paerewa ki ngā paipa e whakamahia ana hei kawe i ngā wai me ngā hau. E kapi ana te whakaritenga i te whānuitanga o ngā momo maitai, ā, e whakarite ana kia tutuki i ngā paipa e hangaia ana ngā āhuatanga miihini me ngā hanganga matū motuhake.

He mea nui te paerewa ASTM A139 ki ngā kaihanga me ngā miihini nā te mea he aratohu mō te tukanga whakaputa, tae atu ki ngā tikanga whakarewa me ngā mahi whakahaere kounga me mahi. Mā te piri ki ēnei paerewa, ka taea e ngā kaihanga te whakarite kia pono ā rātou hua, kia tika hoki mō ngā momo tono, mai i te kawe hinu me te hau ki ngā whakamahinga hanganga whare.

Te tūranga o te paipa SAWH

Ko te paipa SAWH, ko te paipa kōwhao porowhita rānei, he momo paipa kua whakarewahia mā te whakarewa porowhita i ngā rīpene maitai papatahi kia rite ki te āhua porotaka. Mā tēnei tikanga whakaputa ka taea te hanga i ngā paipa whānui, he kaha, he māmā hoki. Ko te hangarau whakarewa porowhita e whakamahia ana i roto iNgā paipa SAWH he maha ngā painga, tae atu ki:

1. Te Whai Hua o te Utu:He maha ake ngā wā he ohanga ake te tukanga whakaputa paipa SAWH i ngā tikanga tuku iho, ā, he mea ātaahua hoki mō ngā kaupapa nunui.

2. TE WHAKAMAHINGA O NGĀ MEA:Ka taea te hanga i ngā paipa SAWH i roto i ngā rahi me ngā matotoru rerekē, kia pai ai mō ngā momo mahi maha, tae atu ki ngā puna wai, ngā pūnaha wai para, me ngā wāhanga hanganga.

3. Kaha Whakarei:Mā te hanganga whakarewa porowhita ka kaha ake, ka ātete hoki ki te pēhanga o waho, ā, ka pai rawa atu te paipa SAWH mō ngā taiao ahotea teitei.

Ngā painga o te paipa porowhita kua whakarewahia

Ko te paipa whakarewa porowhita tētahi atu momo paipa whakarewa e hangaia ana mā te whakamahi i te hangarau whakarewa porowhita. Ko te tikanga he takai i tētahi rīpene maitai ki tētahi mandrel, ka whakarewahia kia porowhita tonu.Paipa Whakarewahia Helical he maha ngā painga, tae atu ki:

1. Ngā āhuatanga rere kua whakapaitia:Ka whakaitihia te aueue me te whakarei ake i te rere o te wai e te mata maeneene o roto o te Paipa Whakarewa Hiko, ā, ka pai ake mō ngā mahi hinu me te hau.

2. TE TAUmaha I WHAKAITIA:Mā te hoahoa porowhita ka taea te hanga pakitara kia angiangi ake, engari kāore e whakaiti i te kaha, ka māmā ake ai te paipa, ka māmā ake ai te pupuri me te kawe.

3. Ngā Roa Whakaritenga:Ka taea te hanga i ngā paipa whakarewa porowhita i ngā roa roa ake, hei whakaiti i te maha o ngā hononga e hiahiatia ana i roto i te paipa, hei whakaiti hoki i te tūponotanga o ngā turuturu.

Hei whakamutunga

Hei whakarāpopototanga, ko te ASTM A139 te paerewa matua mō te hanga paipa SAWH me te paipa whakarewa porowhita, e whakarite ana kia tutuki i ēnei wāhanga nui ngā paerewa haumaru me te mahi e tika ana. Nā ngā āhuatanga ahurei o te SAWH me te paipa whakarewa porowhita, he mea tino nui ēnei i roto i ngā ahumahi mai i te hanga ki te pūngao. I te haere tonu o te whanaketanga o te hangarau, ka tipu haere te hiranga o te piri ki ngā paerewa kua whakapumautia pēnei i te ASTM A139 kia mau tonu ai te haumaru me te whai hua o te hanganga e whakawhirinakihia ana e tātou. Ahakoa he miihini koe, he kaimahi kirimana, he kaiwhakahaere kaupapa rānei, he mea nui te mārama ki ēnei paerewa me ngā painga o ēnei momo paipa ki te whakatau whai whakaaro mō āu kaupapa.