E mōhio ana te hunga e whai wāhi ana ki ngā kaupapa turanga pou, ko te kounga o ngā pou paipa maitai ka pā tika ki te haumaru o te turanga katoa. He maha ngā kaihanga i Haina e taea ai te hanga paipa porowhita whakarewa nui te whānui, engari ko te hunga e taea tonu te tuku hua e ai ki te paerewa ASTM A252 he tino uaua ki te kimi. I tēnei rā, e kōrero ana tātou mō tētahi o ngā kamupene kua whakatūria i roto i teNgā wheketere Astm A252- Rōpū Paipa Rino Porowhita o Cangzhou.
He aha te ASTM A252?
I roto i ngā kupu māmā noa iho, e kapi ana tēnei paerewa i ngā puranga paipa rino porotaka. E rua ōna whakamahinga: ko te tuatahi he wāhanga pumau tonu te paipa rino e mau ana i te kawenga, e peia ana ki roto i te whenua hei tautoko i te whare i runga ake; ko tetahi he anga, me te raima e ringihia ana ki roto hei hanga i te puranga raima kua makahia ki te wāhi. Ahakoa ko tēhea, he mārama ngā whakaritenga mō te kaha, te kounga whakarewa me te tika o te rahi o te rauemi paipa.
Kia pēhea te rahi ka taea te hanga i ā tātou paipa rino?
Ko te nuinga o te kamupene Cangzhou Spiral Steel Pipe Group e hanga ana i ngā paipa porowhita kua whakarewahia, he mea hanga motuhake mō te hangarau turanga. Ko te whānui o ngā paipa kei waenga i te 219mm ki te 3500mm, ā, ko te roa mōrahi o te paipa kotahi ka eke ki te 35 mita. Ko tēnei āheinga hipoki whakatakotoranga tetahi o ngā mea pai rawa atu i Haina - mō ngā kaupapa maha e hiahia ana ki ngā wāhanga paipa roa he whānui nui, ka taea e rātou te whakarato tika i aua mea me te kore e hiahiatia he hononga whakarewa i te papaanga.
Me pēhea e taea ai e ngā wheketere rarawe te whakarite i te kounga o ngā hua?
HeiTe wheketere Astm A252 rarawe, kāore rātou e mahi ana i te mahi whakaputa iti. Kei Cangzhou, Porowini o Hebei te wheketere. I whakatūria i te tau 1993, ā, e 350,000 mita pūrua te rahi. Me te katoa o ngā rawa o te 680 miriona yuan me te 680 kaimahi, e 400,000 tāne o ngā paipa maitai porowhita e whakaputa ana i ia tau, ā, e 1.8 piriona RMB te uara putanga. E kitea ana te rahi, ā, kua whakamanahia ngā raina whakaputa, ngā taputapu whakamātautau, me te rarangi rauemi mata.
Mō ia paipa rino, mai i tōna whakaurunga ki te raina whakaputa tae noa ki tōna hanga, te whakarewa, me te tirotiro, he tuhinga tukanga taipitopito kei reira. Ka whakamatautauria ngā hononga whakarewa kore-whakangaro, ā, ko ngā whakamātautau ine me te pēhanga wai he mahi noa iho. Ko tā rātou e tuku mai ana ehara i te paipa kotahi, e rua rānei, engari he nui ngā puranga paipa - ki te kore e pumau te kounga, ā, he raruraru te puranga taonga, me mutu te mahi a te tīma taraiwa puranga katoa.
Mena kei te rapu koe i tētahi puranga o ngā puranga paipa rino porowhita he whānui, he roa, ā, e tutuki ana i ngā paerewa ASTM A252, he mea tika kia whakaarohia te Cangzhou Spiral Steel Pipe Group. He nui te kaha whakaputa, he whānui ngā whakaritenga, ā, he wheketere pūtake. Ka tukuna e rātou he painga utu mō ngā hoko rarawe. Mō ngā hiahia kaupapa, ka taea e koe te whakapā tika atu mō ngā tuhi me ngā rā tuku.
Wā tuku: Mei-09-2026