ASTM A672 B60/B70/C60/C65/C70 LSAW(JCOE) Khabone Steel Pipe kee sebelisoa maemong a khatello e phahameng 'me e sebelisoa haholo-holo fekthering ea motlakase, indastering ea oli ea lebopong la leoatle, indastering ea lik'hemik'hale, manyolo, lik'hemik'hale tsa peterole, libaka tsa ho hloekisa jj.
ASTM A672 B60/B70/C60/C65/C70 LSAW(JCOE) Khabone Steel Pipe e tla ba di-weld tse tjheseditsweng habeli, tse kenelletswang ka botlalo tse entsweng ho ya ka mekgwa le ke di-welder kapa basebetsi ba ho tjheseletsa ba nang le mangolo a tshwanelehang ho ya ka ASME Boiler le Pressure Vessel Code, Karolo ya IX.
Lihlopha tsohle tse seng tsa 10, 11, 12 le 13 li lokela ho phekoloa ka mocheso ka ontong e laoloang ho fihlela ho ±15℃ 'me li hlomelloe ka hydrometer e rekotang e le hore lirekoto tsa ho futhumatsa li fumanehe.
Tlhahiso:Ho Welding ea Arc e Koahetsoeng ka Nako e Telele (LSAW).
Boholo:OD: 406～1422mm Boima: 8～60mm.
Sehlopha:B60, C60, C65, jj.
Bolelele:3-12M kapa bolelele bo boletsoeng ha ho hlokahala.
Liphetho:Qetello e se nang letho, Qetello e Beveled, e nang le mela e metenya.
| Litlhoko tsa Lik'hemik'hale bakeng sa Pipe ea Tšepe ea Khabone ea LSAW ea ASTM A672 B60/B70/C60/C65/C70 | ||||||||||||
| Phaephe | Sehlopha | Sebopeho, % | ||||||||||
| C boholo | Mn | P boholo | S boholo | Si | Tse ling | |||||||
| <=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 | ... | |
| Matlotlo a Mekaniki | |||||||
| Sehlopha | |||||||
|
| B60 | B65 | B70 | C55 | C60 | C65 | C70 |
| Matla a ho tsikinyeha, bonyane: | |||||||
| ksi | 60 | 65 | 70 | 55 | 60 | 65 | 70 |
| Mpa | 415 | 450 | 485 | 380 | 415 | 450 | 485 |
| Matla a tlhahiso, bonyane: | |||||||
| ksi | 32 | 35 | 38 | 30 | 32 | 35 | 38 |
| MPa | 220 | 240 | 260 | 205 | 220 | 240 | 260 |
| Litlhoko tsa ho Lelefatsa: Ho ea ka maemo | |||||||
1. Bophara ba Kantle - Ho latela tekanyo e potolohang ± 0.5% ea bophara bo boletsoeng ba kantle.
2. Phapang e sa kgutleleng pakeng tsa bophara bo boholo le bo bonyenyane ba kantle.
3. Ho Lokisa-Ho sebedisa moedi o otlolohileng wa 10 ft (3m) o behilweng e le hore dipheletso ka bobedi di kopane le phaephe, 1/8 in. (3mm).
4. Botenya - Botenya bo bonyane ba lebota ntlheng efe kapa efe ka hara phaephe ha boa lokela ho feta 0.01 in. (0.3mm) tlasa botenya bo boletsweng.
5. Bolelele bo nang le lipheletso tse sa sebetsoang bo tla ba ka hare ho -0,+1/2 in. (-0,+13mm) ho tloha ho bo boletsoeng. Bolelele bo nang le lipheletso tse sebetsoang bo tla ba kamoo ho lumellanoeng kateng pakeng tsa moetsi le moreki.
Teko ea Khatello—Thepa ea ho thaepa e potolohang ea lenonyeletso le welded e tla fihlela litlhoko tse fokolang tsa matla a ho thaepa a thepa e boletsoeng ea poleiti.
Liteko tsa ho kobeha tse tataisoang ke weld tse kobehileng —Teko ea ho kobeha e tla amoheleha haeba ho se na mapetso kapa likoli tse ling tse fetang 1/8 in. (3mm) ka lehlakoreng lefe kapa lefe tse teng tšepeng ea weld kapa pakeng tsa weld le tšepe ea motheo ka mor'a ho kobeha.
Tlhahlobo ea Radio-graphic - Bolelele bo felletseng ba weld e 'ngoe le e 'ngoe ea sehlopha sa X1 le X2 bo tla hlahlojoa ka radiographic ho latela le ho fihlela litlhoko tsa ASME Boiler le Pressure Vessel Code, Karolo ea bosupa, serapa sa UW-51.
Phaephe e fedileng e lokela ho ba ntle le diphoso tse kotsi mme e be le qetello e kang ya motho ya sebetsang.
A. Lebitso kapa letshwao la moetsi.
B. Nomoro ea tlhaloso (selemo kapa letsatsi la ho hlokahala).
C. Boholo (OD, Boima, bolelele).
D. Kereiti(A kapa B).
E. Mofuta oa phaephe (F, E, kapa S).
F. Khatello ea teko (phaephe ea tšepe e se nang sekoli feela).
G. Palo ea Mocheso.
H. Tlhahisoleseding efe kapa efe e eketsehileng e boletsweng odareng ya theko.
● Phaephe e hlobotseng kapa e Ntšo / Sekoahelo sa Varnish / Sekoahelo sa Epoxy / Sekoahelo sa 3PE (ho latela litlhoko tsa moreki);
● 6" le ka tlase ka dihlopha tse nang le di-sling tse pedi tsa k'hothone;
● Lipheletso ka bobeli li na le litšireletso tsa qetello;
● Qetello e se nang letho, pheletso ea bevel (2" le holimo e nang le lipheletso tsa bevel, tekanyo: 30~35°), e nang le khoele le ho kopanya;
● Ho tšoaea.
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