ZVINOTAURWA ZELSAW STEEL PIP | |
1.Size | 1)OD:406mm-1500mm |
2) Rusvingo Ukobvu: 8mm-50mm | |
3)SCH20,SCH40,STD,XS,SCH80 | |
2.Standard: | ASTM A53,API 5L,EN10219,EN10210,ASTM A252,ASTM A500 nezvimwewo |
3.Zvinhu | ASTM A53 Gr.B,API 5L Gr.B,X42,X52,X60,X70,X80,S235JR,S355J0H nezvimwe |
4.Kushandisa: | 1) low pressure fluid, mvura, gasi, oiri, line pombi |
2) pombi yechimiro, kuvakwa kwepombi | |
3)fenzi,gonhi pombi | |
5.Kupfeka | 1) Bared 2) Black Painted (varnish coating) 3) Galvanized 4) Mafuta 5) PE, 3PE, FBE, comosion resistant coating, Anti corrosion coating |
6.Technique | longitudinal welded simbi pombi |
7. Kuongorora: | Iine Hyd raulic Testing, Eddy Yazvino, RT, UT kana kuongororwa nevechitatu bato. |
8.Delivery | Container, Bulk Vessel. |
9.About Hunhu Hwedu: | 1) Hapana kukuvadzwa, hapana chakakombama 2) hapana burrs kana micheto inopinza uye hapana zvimedu 3) Yemahara yemafuta & kumaka 4) Zvinhu zvese zvinogona kuongororwa nevechitatu bato ongororo isati yatumirwa |
Injiniya nyaya yeHong Kong
Injiniya nyaya yeQatar
Injiniya nyaya yeTurkey
LSAW Pipeinotora yakanyura arc welding tekinoroji, ichishandisa filler welding, particle protection flux yakavigwa arc.
LSAW ndicho chidimburidzo cheChirungu chearc yakanyudzwa yakasungwa yakatwasuka musono simbi pombi.Iyo nzira yekugadzira yakanyudzwa arc welded yakatwasuka seam simbi pombi inosanganisira JCOE yekugadzira tekinoroji, coil inogadzira yakanyura arc welding tekinoroji uye UOE yekugadzira tekinoroji.
Maitiro ekugadzira Longitudinal Submerged-arc Welded(LSAW) Pipe ndeaya anotevera:
Ultrasonic plate probing → edge milling → pre-bending → kuumba → Pre-welding → Internal welding→ External welding → Ultrasonic kuongorora → X-ray kuongorora → Kuwedzera → hydraulic test →l.Chamfering → Ultrasonic kuongorora → X-ray kuongorora → magineti particle kuongorora pachubhu kupera
Tensile Zvinodiwa | |||
Grade 1 | Grade 2 | Grade 3 | |
Kusimba simba, min, psi (MPa) | 50 000 (345) | 60 000 (415) | 66 000 (455) |
Goho poindi kana goho simba, min, psi(MPa) | 30 000 (205) | 35 000 (240) | 45 000 (310) |
Basic elongation yezita remudhuri makobvu %6 in. (7.9 mm) kana kudarika: Elongation in 8 in. (203.2 mm), min, % Elongation in 2 in. | 18 30 | 14 25 | ... 20 |
Nokuti nominal rusvingo ukobvu isingasviki % 6 mu. (7.9 mm), kubviswa kubva inokosha shoma elongation muna 2 mu. (7.9 mm), muhuwandu hwemapoinzi | 1.5A | 1.25A | 1.0A... |
Hydrostatic Testing
NDT (RT) Kuedza
NDT (UT) Kuedza
Bending Test-hurefu hwakakwana hwepombi huchamira ichitonhorwa ne90° kutenderedza cylindrical mandrel.
Kudzika bvunzo-kunyangwe kuyedzwa kusiri kudikanwa, pombi ichave inokwanisa kuzadzisa zvinodikanwa zvekuyedza.
Hydrostatic test-kunze kwekunge zvichitenderwa, hurefu hwega hwega hwepombi huchaiswa kune hydro-static bvunzo pasina kuvuza kuburikidza nemudhuri wepombi.
Nondestructive electric test-seimwe nzira kune iyo hydro-static bvunzo, muviri uzere wepombi yega yega uchayedzwa neinoparadza yemagetsi bvunzo.uko kunoitwa bvunzo dzemagetsi dzisingakonzereki, kureba kuchaiswa mabhii”NDE”
Kuongorora kwe ultrasonic
The eddy ikozvino kuongorora
Pombi isina chinhu, yakasviba coating (yakagadzirirwa);
Zvose zvinopera nevadziviriri vekupedzisira;
Plain end, bevel end;
Kumaka.
Kunze Diameter | Iyo dhayamita yekunze yemapombi epombi haizosiyane kupfuura ± 1% kubva kune yakataurwa kunze kwedhayamita. | ||
Kukora kwemadziro | Ukobvu hwemadziro panguva ipi neipi haufanirwe kupfuura 12.5% pasi peiyo yakataurwa zita remadziro ukobvu. | ||
Urefu | Mirwi yepombi ichapihwa mune imwe chete isina hurefu hurefu, hurefu hwakapetwa kaviri, kana muhurefu hwakafanana sezvakatsanangurwa muhurongwa hwekutenga, zvinoenderana nemiganhu inotevera: | Single random urefu | 16 kusvika 25ft (4.88 kusvika 7.62mm), inch |
Hurefu hwakapetwa kaviri | Kupfuura 25ft (7.62m) ine hushoma avhareji ye35ft (10.67m) | ||
Hurefu hwakafanana | kureba sekutaurwa kwazvinoitwa nemusiyano unobvumidzwa we ±1 mukati. | ||
Kurema | Hurefu hwega hwega hwemurwi wepombi huchayerwa hwakaparadzana uye huremu hwayo hahuzosiyana kupfuura 15% pamusoro kana 5% pasi pehuremu hwayo hwekufungidzira, huchiverengerwa uchishandisa urefu hwayo uye huremu hwayo pahurefu hweyuniti. |