ASTM A672 B60/B70/C60/C65/C70 LSAW(JCOE) Pombi yesimbi yekabhoni ndiyoinoshandiswa mumamiriro ekumanikidzwa kwakanyanya uye inonyanya kushandiswa mumafekitori emagetsi, indasitiri yemafuta ekunze, indasitiri yemakemikari, fetiraiza, petrochemicals, nzvimbo dzekuchenesesa nezvimwewo.
ASTM A672 B60/B70/C60/C65/C70 LSAW(JCOE) Carbon Steel Pipe inofanira kunge yakasungirirwa kaviri, yakazara-penetration welds yakagadzirwa zvichienderana nemaitiro uye nevanobatanidza kana vashandisi vewelding vane hunyanzvi zvichienderana neASME Boiler and Pressure Vessel Code, Chikamu IX.
Makirasi ese asiri 10, 11, 12 na13 anofanira kupiswa muchoto kusvika ±15℃ uye anofanirwa kugadzirirwa hydrometer yekurekodha kuitira kuti zvinyorwa zvekudziisa zvivepo.
Kugadzira:Kuwedera kweArc kwakanyudzwa mumvura kwenguva refu (LSAW).
Saizi:OD: 406～1422mm Kurema: 8～60mm.
Giredhi:B60, C60, C65, nezvimwewo.
Kureba:3-12M kana kureba kwakatsanangurwa sezvinodiwa.
Kuguma:Mugumo Wakajeka, Mugumo Wakakombama, Wakakombama.
| Zvinodiwa zveMakemikari zveASTM A672 B60/B70/C60/C65/C70 LSAW Carbon Steel Pipe | ||||||||||||
| Pombi | Giredhi | Kuumbwa, % | ||||||||||
| C zvakanyanya | Mn | P zvakanyanya | S zvakanyanya | Si | Zvimwe | |||||||
| <=1in (25mm) | >1~2in (25~50mm) | >2~4in(50-100mm) | >4~8in (100~200mm) | >8in (200mm) | <=1/2in (12.5mm) | >1/2in (12.5mm) | ||||||
| 60 | 0.24 | 0.21 | 0.29 | 0.31 | 0.31 | 0.98max | 0.035 | 0.035 | 0.13–0.45 | ... | ||
| 65 | 0.28 | 0.31 | 0.33 | 0.33 | 0.33 | 0.98max | 0.035 | 0.035 | 0.13–0.45 | ... | ||
| 70 | 0.31 | 0.33 | 0.35 | 0.35 | 0.35 | 1.30max | 0.035 | 0.035 | 0.13–0.45 | ... | ||
| C | 55 | 0.18 | 0.20 | 0.22 | 0.24 | 0.26 | 0.55–0.98 | 0.55–1.30 | 0.035 | 0.035 | 0.13–0.45 | ... |
| 60 | 0.21 | 0.23 | 0.25 | 0.27 | 0.27 | 0.55–0.98 | 0.79–1.30 | 0.035 | 0.035 | 0.13–0.45 | ... | |
| 65 | 0.24 | 0.26 | 0.28 | 0.29 | 0.29 | 0.79–1.30 | 0.79–1.30 | 0.035 | 0.035 | 0.13–0.45 | ... | |
| 70 | 0.27 | 0.28 | 0.30 | 0.31 | 0.31 | 0.79–1.30 | 0.79–1.30 | 0.035 | 0.035 | 0.13–0.45 | ... | |
| Zvivakwa zveMichina | |||||||
| Giredhi | |||||||
|
| B60 | B65 | B70 | C55 | C60 | C65 | C70 |
| Simba rekusimba, min: | |||||||
| ksi | 60 | 65 | 70 | 55 | 60 | 65 | 70 |
| Mpa | 415 | 450 | 485 | 380 | 415 | 450 | 485 |
| Simba rekupa, min: | |||||||
| ksi | 32 | 35 | 38 | 30 | 32 | 35 | 38 |
| MPa | 220 | 240 | 260 | 205 | 220 | 240 | 260 |
| Zvinodiwa zveKureba: Sezvinoenderana nezvinodiwa | |||||||
1. Dhayamita Yekunze - Zvichibva pakuyera kwakatenderedza ±0.5% yedhayamita yekunze yakatarwa.
2. Kusiyana-kwe-kutenderera-Musiyano uripo pakati pemadhayamita makuru nemadiki ekunze.
3. Kurongeka-Kushandisa tambo yakatwasuka ine 3m (10 ft) yakaiswa kuitira kuti magumo ese ari maviri abatane nepombi, 1/8 in. (3mm).
4. Ukobvu - Ukobvu hwemadziro hushoma pane chero nzvimbo mupombi hahufanirwe kupfuura 0.01 in. (0.3mm) pasi peukobvu hwakatarwa.
5. Kureba kwemativi asina kugadzirwa kunofanira kunge kuri mukati me -0,+1/2 in. (-0,+13mm) kubva pane zvakatarwa. Kureba kwemativi ane kugadzirwa kunofanira kunge kwakabvumiranwa pakati pemugadziri nemutengi.
Kuedzwa kweKusimba—Hunhu hwekusimba kwekubatana kwesimbi yakasungirirwa hunofanira kuzadzisa zvinodiwa zvishoma kuti simbi yesimbi isimbiswe zvakanyanya.
Miedzo yekukombama inotungamirwa ne transverse-guided weld-belt —Muedzo wekukombama uchagamuchirwa kana pasina mitswe kana zvimwe zvikanganiso zvinopfuura 1/8 in. (3mm) chero kupi zviripo musimbi yekukombama kana pakati pesimbi yekukombama nesimbi yepasi mushure mekukombama.
Kuongorora neRadio-graphic - Hurefu hwese hwe weld yega yega yekirasi X1 neX2 hunofanira kuongororwa neradiographic zvichienderana uye zvinosangana nezvinodiwa neASME Boiler and Pressure Vessel Code, Chikamu chechinomwe, ndima UW-51.
Pombi yapera inofanira kunge isina zvikanganiso zvinokuvadza uye inofanira kunge yakagadzirwa nemaoko.
A. Zita kana chiratidzo chemugadziri.
B. Nhamba yeruzivo (gore-zuva kana rinodiwa).
C. Saizi (OD, WT, kureba).
D. Giredhi (A kana B).
E. Rudzi rwepombi (F, E, kana S).
F. Kumanikidzwa kwekuyedza (pombi yesimbi isina musono chete).
G. Nhamba yekupisa.
H. Chero rumwe ruzivo rwakawedzerwa rwakatsanangurwa muodha yekutenga.
● Pombi isina chinhu kana Dema / Varnish coating/Epoxy coating/3PE coating (zvinoenderana nezvinodiwa nemutengi);
● 6" uye pasi muzvikwata zvine zvisungo zviviri zvedonje;
● Migumo yese ine zvidziviriro zvekupedzisira;
● Mugumo usina kuzara, mugumo webevel (2" zvichikwira une magumo ebevel, dhigirii: 30~35°), wakarukwa uye wakabatana;
● Kuisa chiratidzo.
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