Nānā nui

Hoʻohanohano kēlā me kēia lālā o kā mākou hui kālā hana nui i nā koi o nā mea kūʻai aku a me ka kamaʻilio hui no ka ASTM A53/BS1387 Hot Dipped Galvanized Steel Pipe。 Me mākou i kāu kālā i ka palekana i kāu ʻoihana i ka palekana. Manaʻolana hiki iā mākou ke lilo i mea hoʻolako hilinaʻi ma Kina. Ke nānā nei i mua no kāu hui ʻana .Me ka ʻoi aku o 9 mau makahiki o ka ʻike a me kahi hui ʻoihana, ua lawe aku mākou i kā mākou huahana i nā ʻāina a me nā ʻāina a puni ka honua. Hoʻokipa mākou i nā mea kūʻai aku, nā hui ʻoihana a me nā hoaaloha mai nā wahi āpau o ka honua e hoʻopili iā mākou a ʻimi i ka launa pū ʻana no nā pono like.

Loaʻa i ka Hot-dip galvanizing nā mea maikaʻi o ka uhi ʻana i ka lole, ka hoʻopili ikaika a me ke ola lawelawe lōʻihi. Hiki ke hoʻololi kino a me ke kemika paʻakikī ma waena o ka matrix paipu kila a me ka hoʻoheheʻe hoʻoheheʻe hoʻoheheʻe ʻia e hana i kahi ʻāpana zinc-hao me ka paʻa paʻa. Hoʻohui ʻia ka papa ʻaina me ka ʻāpana zinc maʻemaʻe a me ka matrix pipe kila. No laila, ikaika kona pale ʻana i ka corrosion.

Pono e hoʻomaopopo i ka makahiki 1960 a me 1970, ua hoʻomaka nā ʻāina i kūkulu ʻia i ka honua e hoʻomohala i nā ʻano paipu hou a pāpā mālie i nā paipu galvanized. ʻEhā mau ʻoihana a me nā komisina me ka Ministry of Construction of China i hoʻopuka pū i kahi palapala e wehewehe ana ua pāpā ʻia nā paipu galvanized mai ka makahiki 2000. ʻAʻole hoʻohana ʻia nā paipu galvanized no nā paipu wai anuanu ma nā kaiāulu hou i kūkulu ʻia, a hoʻohana ʻia nā paipu galvanized no nā paipu wai wela ma kekahi mau kaiāulu.

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