Onye nrụpụta China LSAW na SSAW Welded Pipe
China Steel ọkpọkọ na enweghị nkebi na welded ígwè anwụrụ
N'oge na-adịbeghị anya, anyị ezutewo ajụjụ ụfọdụ maka ọkpọkọ welded n'oge a na-ajụ ajụjụ ọkpọkọ enweghị nkebi.
Enwere ụzọ abụọ maka ọkpọkọ welded . Otu bụ Spirally Submerged Arc Welding (SSAW ọkpọkọ), ọzọ bụ longitudinal submerged arc ịgbado ọkụ (LSAW ọkpọkọ)
N'ihi na LSAW, e nwere otu onuete welded ọkpọkọ na abụọ seams weled ọkpọkọ. ị nwere ike ịlele foto
Nchịkọta
Ngwa
A na-eji ya eme ihe maka ike na akụkụ nrụgide, yana maka ebumnuche izugbe uzuoku, mmiri, gas na ọkpọkọ ikuku.
Isi ọkwa
GR.A, GR.B
Ngwakọta kemịkalụ
| Ọkwa | Akụkụ% ≤ | ||||||||
| C | Mn | P | S | KuA | NiA | CrA | MoA | VA | |
| Ụdị S (paịpụ enweghị nkebi) | |||||||||
| GR.A | 0.25B | 0.95 | 0.05 | 0,045 | 0.40 | 0.40 | 0.40 | 0.15 | 0.08 |
| GR.B | 0.30C | 1.20 | 0.05 | 0,045 | 0.40 | 0.40 | 0.40 | 0.15 | 0.08 |
| Ụdị E (Nguzogide welded ọkpọkọ) | |||||||||
| GR.A | 0.25B | 0.95 | 0.05 | 0,045 | 0.40 | 0.40 | 0.40 | 0.15 | 0.08 |
| GR.B | 0.30C | 1.20 | 0.05 | 0,045 | 0.40 | 0.40 | 0.40 | 0.15 | 0.08 |
| Ụdị F (Ọkụ Welded Pipe) | |||||||||
| A | 0.30B | 1.20 | 0.05 | 0,045 | 0.40 | 0.40 | 0.40 | 0.15 | 0.08 |
A Nchikota nke ihe ise a agaghị agafe 1.00%.
B Maka 0.01% ọ bụla na-ebelata na ọdịnaya carbon kachasị elu, a na-ahapụ ọdịnaya manganese kachasị elu site na 0.06%, mana nke kachasị enweghị ike gafere 1.35%.
C Mbelata 0.01% ọ bụla na ọdịnaya carbon kacha elu ga-ekwe ka ọdịnaya manganese kachasị elu na-abawanye site na 0.06%, mana nke kachasị agaghị agafe 1.65%.
Ngwongwo igwe
| ihe | GR.A | GR.B |
| ike tensile, ≥, psi [MPa] Ike Mpụta, ≥, psi [MPa] Nlele 2in. ma ọ bụ 50mm elongation | 48 000 [330]30 000 [205] A, B | 60000 [415]35 000 [240]A,B |
A Nke kacha nta elongation nke nlele ogologo 2in. (50mm) ga-ekpebi site na usoro a:
e=625000(1940)A0.2/U0.9
e = kacha nta elongation nke nlele 2in. (50mm), pasent gbakọrọ na 0.5% kacha nso;
A = A gbakọọ dabere na dayameta mpụta akọwapụtara nke tube n'ọnụ ma ọ bụ obosara ọnụ nke ihe nlere anya na oke mgbidi ya akọwapụtara, wee gbachie ya na mpaghara obe kacha nso nke ihe nlere anya nke 0.01 in.2 (1 mm2). ma e jiri ya tụnyere 0.75in.2 (500mm2), nke ọ bụla dị ntakịrị.
U = a kapịrị ọnụ kacha nta ike tensile, psi (MPa).
B Maka nchikota dị iche iche nke nha dị iche iche nke ụdị ule nlegharị anya na ike mkpirisi nke kacha nta, egosiri elongation kacha nta achọrọ na Tebụl X4.1 ma ọ bụ Tebụl X4.2, dịka ọdabara ya si dị.
Achọrọ nnwale
Nnwale tensile, ule mgbada, nnwale hydrostatic, ule eletrik na-adịghị emebi emebi nke welds.
Ikike inye
Ikike ịnye: 2000 tọn kwa ọnwa kwa ọkwa nke ASTM A53/A53M-2012 Steel Pipe
Nkwakọ ngwaahịa
Na ngwugwu na igbe osisi siri ike
Nnyefe
7-14 ụbọchị ma ọ bụrụ na ngwaahịa, 30-45 ụbọchị na-emepụta
Ịkwụ ụgwọ
30% nkwụnye ego, 70% L / C ma ọ bụ B / L oyiri ma ọ bụ 100% L / C na anya
Nkọwa ngwaahịa
Igwe mmiri ọkụ Tube
GB/T 8162-2008
ASTM A519-2006
EN10210-1-2006
ASTM A53/A53M-2012
GB9948-2006
GB6479-2013
