JIS G 3444: ʻO nā paipu kila kalapona no ka hana maʻamau.
Hōʻike ia i nā koi no nā paipu kila kalapona i hoʻohana ʻia i ka ʻenekinia kīwila a me ke kūkulu ʻana, e like me nā hale kiaʻi kila, scaffolding, nā puʻu kumu, nā puʻu kumu, a me nā puʻu anti-slip.
STK 400ʻO ka paipu kila kekahi o nā māka maʻamau, me nā waiwai mechanical o aka ikaika tensile haʻahaʻa o 400 MPaa he aka palena iki o ka ikaika o 235 MPa. ʻO kona ikaika hoʻolālā maikaʻi a me ka lōʻihihana ia i kūpono no nā noi like ʻole.
E like me ka liʻiliʻi o ka ikaika tensile o ka paipu kila ua māhele ʻia i 5 mau papa, ʻo ia hoʻi:
STK 290, STK 400, STK 490, STK 500, STK 540.
'O ke anawaena o waho: 21.7-1016.0mm;
Nā puʻu kumu a me nā puʻu no ka hoʻopau ʻana i ka ʻāina OD: ma lalo o 318.5mm.
| Hōʻailona o ka papa | Hōʻailona o ka hana hana | |
| Kaʻina hana paipu | ʻano hoʻopau | |
| STK 290 | Maikaʻi: S Uila pale pale wili: E Kuʻi ʻia ʻo Butt: B Hoʻopili ʻia ke arc ʻakomi: A | Hoʻopau wela: H Hoʻopau anu: C E like me ka hili ʻia ʻana o ke kūpale uila: G |
| STK 400 | ||
| STK 490 | ||
| STK 500 | ||
| STK 540 | ||
E hana ʻia nā paipu e ka hui ʻana o ke ʻano hana o ka tube a me ke ʻano hoʻopau i hōʻike ʻia.
Ma keʻano kikoʻī, hiki ke hoʻokaʻawale ʻia lākou i ʻehiku mau ʻano, no laila e koho i ke ʻano kūpono e like me nā pono like ʻole:
1) Puka kila seamless wela wela: -SH
2) Pahu kila maʻemaʻe i hoʻopau ʻia i ke anu: -SC
3) E like me ka uila kū'ē welded kila paipu: -EG
4) Hot-hoʻopau uila kū'ē welded kila paipu: -EH
5) Ke anuu-hoʻopau uila kū'ē welded kila paipu: -EC
6) Butt-welded kila paipu: -B
7) Aunoa arc welded kila paipu: -A
| Hoʻohui Kimiaa% | |||||
| Hōʻailona o ka papa | C (Kapona) | Si (Silikona) | Mn (Manekene) | P (Pōpika) | S (Sulphur) |
| max | max | max | max | ||
| STK 400 | 0.25 | — | — | 0.040 | 0.040 |
| aʻAʻole i hoʻokomo ʻia nā mea huila i loko o kēia pākaukau a hiki ke hoʻohui ʻia nā mea i hōʻike ʻia me "—" inā pono. | |||||
STK 400he kila haʻahaʻa-carbon me ka weldability maikaʻi a me ka hana no nā hana hoʻolālā e koi ana i ka wili.Hoʻomalu ʻia ka Phosphorus a me ka sulfur ma nā pae haʻahaʻa e kōkua i ka mālama ʻana i ka paʻakikī holoʻokoʻa a me ka hana o ka mea.ʻOiai ʻaʻole hāʻawi ʻia nā waiwai kikoʻī no ka silikona a me ka manganese, hiki ke hoʻololi ʻia i loko o nā palena i ʻae ʻia e hoʻonui i nā waiwai o ke kila.
ʻO ka ikaika uʻi a me ka helu hua a i ʻole ke koʻikoʻi hōʻoia
Pili ka ikaika tensile o ka weld i nā paipu welded arc.ʻO ia ke kaʻina hana wiliwili SAW.
| Hōʻailona o ka papa | Ka ikaika tensile | Puhi hua a i ʻole koʻikoʻi hōʻoia | Ka ikaika wili i ka weld |
| N/mm² (MPA) | N/mm² (MPA) | N/mm² (MPA) | |
| min | min | min | |
| STK 400 | 400 | 235 | 400 |
ʻO ka lōʻihi o JIS G 3444
Hōʻike ʻia ka elongation e pili ana i ke ʻano hana o ka paipu ma ka Papa 4.
Eia naʻe, ke hana ʻia ka hoʻāʻo tensile ma ka ʻāpana hoʻāʻo No. 12 a i ʻole ka ʻāpana hoʻāʻo No.5 i lawe ʻia mai ka paipu ma lalo o 8 mm i ka mānoanoa o ka paia, e like ka elongation me ka Papa 5.
Ma ka lumi wela (5 °C a hiki i 35 °C), e kau i ka mea hōʻike ma waena o nā papa pālahalaha ʻelua a kaomi paʻa e palahalaha a hiki i ka mamao H ≤ 2/3D ma waena o nā papa, a laila e nānā i nā māwae o ke ʻano.
Ma ka lumi wela (5 °C a hiki i 35 °C), e hoʻopōloli i ka specimen a puni ka cylinder ma ka liʻiliʻi liʻiliʻi o ka piko o 90° a me ka radius kūloko kiʻekiʻe ʻaʻole i ʻoi aku ma mua o 6D a nānā i ke kikoʻī no nā māwae.
E ʻae ʻia nā hoʻokolohua hydrostatic, nā hoʻokolohua non-destructive o welds, a i ʻole nā hoʻokolohua ʻē aʻe ma mua o nā koi kūpono.
ʻO ke anawaena o waho
ʻO ke ahonui o ka pā
Hoʻomanawanui lōʻihi
Length ≥ i kuhikuhi ʻia
Pono ka ili o loko a me waho o ka paipu kila a me ka ʻole o nā mea kīnā ʻole i ka ues.
E hōʻailona ʻia kēlā me kēia paipu kila me ka ʻike ma lalo nei.
a)Hōʻailona o ka papa.
b)Hōʻailona no ke ʻano hana.
c)Anana.E kaha ʻia ke anawaena o waho a me ka mānoanoa o ka pā.
d)Ka inoa o ka mea hana a i ʻole ka pōkole.
Ke paʻakikī ke kaha ʻana i ka paipu no ka liʻiliʻi o ke anawaena o waho a i ʻole ke noi ʻia e ka mea kūʻai mai, hiki ke hoʻopaʻa ʻia i kēlā me kēia pūpū o nā paipu ma ke ʻano kūpono.
Hiki ke hoʻopili ʻia nā pale anti-corrosion e like me ka zinc-rich coatings, epoxy coatings, paint coatings, etc.
Hāʻawi ʻo STK 400 i kahi kaulike maikaʻi o ka ikaika a me ka hoʻokele waiwai, e kūpono ana ia no nā ʻenehana a me nā hana kūkulu.
Hoʻohana maʻamau ʻia nā paipu kila STK 400 i ka ʻoihana kūkulu a kūpono loa no ka hoʻohana ʻana ma ke ʻano he mea hana e like me nā kolamu, nā kaola, a i ʻole nā papa i nā hale kūʻai a me nā hale noho.
He kūpono hoʻi ia no nā alahaka, nā hale kākoʻo, a me nā papahana ʻē aʻe e pono ai ka ikaika waena a me ka lōʻihi.
Hiki ke hoʻohana ʻia no ke kūkulu ʻana i nā kiaʻi alanui, nā papa hōʻailona kaʻa, a me nā mea hana lehulehu ʻē aʻe.
I ka hana ʻana, hiki ke hoʻohana ʻia ʻo STK 400 e hana i nā papa a me nā hale kākoʻo no nā mīkini a me nā mea hana ma muli o kona hiki ke halihali i ka ukana a me ka hana.
E ʻoluʻolu, ʻoiai ua like kēia mau maʻamau i ka hoʻohana ʻana a me ka hana ʻana, aia paha nā ʻokoʻa liʻiliʻi o ka haku melemele kikoʻī a me kekahi mau ʻāpana waiwai mechanical.
I ka wā e hoʻololi ai i nā mea waiwai, pono e hoʻohālikelike ʻia nā koi kikoʻī o nā maʻamau e hōʻoia i nā mea i koho ʻia e hoʻokō i nā kūlana ʻenehana a me ka palekana o ka papahana.
Mai kona hoʻokumu ʻana i ka makahiki 2014, ua lilo ʻo Botop Steel i mea hoʻolako alakaʻi i ka paipu kila carbon ma Northern China, i ʻike ʻia no ka lawelawe maikaʻi loa, nā huahana kiʻekiʻe, a me nā hoʻonā piha.
Hāʻawi ka hui i nā ʻano paipu kila kalapona a me nā huahana pili, me ka seamless, ERW, LSAW, a me ka paipu kila SSAW, a me ka laina piha o nā paipu paipu a me nā flanges.
ʻO kāna mau huahana kūikawā pū kekahi me nā mea kila kiʻekiʻe a me nā austenitic stainless steel, i hana ʻia e hoʻokō i nā koi o nā papahana pipeline like ʻole.
