Nānā nui

Me kā mākou ʻenehana alakaʻi a me ko mākou ʻuhane o ka hana hou, ka hui like ʻana, nā pōmaikaʻi a me ka ulu ʻana, e kūkulu mākou i kahi wā e hiki mai ana me kāu paipu kila paʻa i hoʻopaʻa ʻia, mālama mākou i nā manawa hoʻopuka manawa, nā hoʻolālā hou, ka maikaʻi a me ka ʻike no kā mākou nā mea kūʻai. Pono kā mākou moto e hoʻolako i nā waiwai maikaʻi i loko o ka manawa i ʻōlelo ʻia.
Welina mai e kipa i kā mākou hui, hale hana a me kā mākou hale kūʻai kahi e hōʻike ai i kā mākou waiwai e hoʻokō i kāu manaʻo. I kēia manawa, kūpono ke kipa ʻana i kā mākou pūnaewele, a e hoʻāʻo kā mākou limahana kūʻai i kā lākou mea maikaʻi loa e hāʻawi iā ʻoe i ka lawelawe maikaʻi loa. E hoʻokaʻaʻike mai iā mākou inā makemake ʻoe i ʻike hou aku. ʻO kā mākou pahuhopu ke kōkua i nā mea kūʻai aku e hoʻomaopopo i kā lākou mau pahuhopu. Ke hoʻoikaika nui nei mākou e hoʻokō i kēia kūlana lanakila-lanakila.

E pili ana i ka paipu kalapona i wiliwili ʻia, aia kekahi ʻano poeple i kapa ʻia ʻo MS pipe, ʻo ia hoʻi nā paipu i hana ʻia mai ke kila māmā/haʻahaʻa kalapona (ʻo ke kila kalapona i haʻahaʻa ʻia ma mua o 0.25%). ʻO kēia ʻano paipu ka mea maʻamau, hoʻohana nui ʻia i ke kūkulu hale, scaffold a pēlā aku. He palupalu kēia ʻano paipu, ʻaʻole hiki ke hoʻomanawanui i ka ikaika a me ke kaomi, no laila hiki ke hoʻohana ʻia i ka lawe wai haʻahaʻa. No ka mea, he haʻahaʻa haʻahaʻa kēia kila kila, ʻaʻole e hoʻohana ʻia i kahoʻohana ʻO kahi hiʻohiʻona i koi nui ʻia, no laila ke haʻi aku ka poʻe i ka paipu MS, ʻo ia ka paipu welded mau.

Palapala noi

Hoʻohana nui ʻia ia no nā ʻāpana ikaika a me nā ʻāpana, a no ke kumu nui o ka mahu, ka wai, ke kinoea a me nā paipu ea.

Papa Nui

GR.A, GR.B

Mea Kimia

ʻAʻole ʻoi aku ka nui o kēia mau mea ʻelima ma mua o 1.00%.

B No kēlā me kēia 0.01% ka emi ʻana o ka nui o ka carbon content, ʻae ʻia ka nui o ka manganese e hoʻonui i ka 0.06%, akā ʻaʻole hiki ke kiʻekiʻe ma mua o 1.35%.

C ʻO kēlā me kēia 0.01% ka emiʻana o ke kalapona kalapona kiʻekiʻe eʻae i ka nui o ka manganese e hoʻonui i ka 0.06%, akā,ʻaʻole pono ka nui ma mua o 1.65%.

Waiwai Mekani

A ʻO ka lōʻihi liʻiliʻi o ka lōʻihi 2in. (50mm) e hoʻoholo ʻia e kēia ʻano kumu:

e=625000(1940)A^0.2/U^0.9

e = ka lōʻihi liʻiliʻi o ka anana 2in. (50mm), ka pākēneka i hoʻopuni ʻia i ka 0.5% kokoke loa;

A = helu ʻia e like me ke anawaena o waho o ka paipu inoa a i ʻole ka laula inoa o ka hāpana tensile a me kona mānoanoa pā i kuhikuhi ʻia, a hoʻopuni ʻia i kahi kokoke loa o ka hāpana tensile o 0.01 in.2 (1 mm2), a Hoʻohālikelike ʻia me 0.75in.2 (500mm2), ʻoi aku ka liʻiliʻi.

U = ka ikaika tensile palena iki, psi (MPa).

B No nā hui like ʻole o nā nui like ʻole o nā hōʻike hoʻāʻo tensile a me ka ikaika tensile haʻahaʻa i kuhikuhi ʻia, hōʻike ʻia ka elongation haʻahaʻa i koi ʻia ma ka Papa X4.1 a i ʻole ka Papa X4.2, e like me kona kūpono.

Koi hoao

ʻO ka hoʻāʻo tensile, ka hoʻāʻo ʻana, ka hoʻāʻo hydrostatic, ka hoʻāʻo uila nondestructive o nā welds.

Hiki ke hoolako

Hiki ke hoʻolako: 2000 Tons i kēlā me kēia mahina no ka papa o ASTM A53 / A53M-2012 Steel Pipe

Hoʻopili ʻia

I loko o nā pūʻolo a i loko o ka pahu lāʻau ikaika

Hāʻawi

7-14 mau lā inā ma ka waihona, 30-45 mau lā e hana ai

Uku

30% depsoit, 70% L/C a i ʻole B/L kope a i ʻole 100% L/C i ka ʻike

Huahana Huahana

Paipu paila

GB/T 8162-2008

ASTM A519-2006

BS EN10210-1-2006

ASTM A53/A53M-2012

GB9948-2006

GB6479-2013

GB/T 17396-2009