Dhuumaha birta ah ee aan xidhnayn, sidoo kale loo yaqaanno birta aan tol lahayn, waa dhululubo dheer oo godan oo loo isticmaalo dareeraha dhaqaaqa (dareereyaasha ama gaaska).
"Tuubada birta aan fiicnayn" iyo "tuubyada birta aan lahayn" ayaa ku dhow inay is beddelaan, in kasta oo kala duwanaansho yaryar ay jiraan-guud ahaan, tuubbadu waxay leedahay shuruudo injineernimo oo adag marka loo eego tuubada.
Cepheus waa soo-saare xirfad-yaqaan ah oo ku takhasusay soo saarista tuubooyinka aan fiicnayn ee dhexroorrada waaweyn, dhexe iyo kuwa yaryar.
Tuubooyin kala duwan oo birta aan xidhnayn ayaa la soo saaray oo leh tilmaamo dhamaystiran iyo tayada ugu sareysa.
Cepheus waxa uu leeyahay qalab fiican iyo maarayn tayo leh oo dhammaystiran, waxa uu dejiyaa nidaamka maaraynta tayada casriga ah, waxa uu soo bandhigaa tignoolajiyada caalamiga ah ee horumarsan, waxana uu qaataa farsamada wax-soo-saarka horumarsan ee caalamiga ah.
Dhuumaha birta aan fiicnayn ayaa si weyn loogu isticmaalaa warshadaha sida batroolka, warshadaha kiimikada, mishiinada, tamarta korontada, fiber kiimikaad, waraaqo samaynta, daabacaadda iyo rinjiyeynta, cuntada iyo qaybaha pneumatic iwm.
Shirkadda waxaa la siiyaa qalab baaritaan oo dhameystiran iyo qaadashada heerarka farsamada ee alaabta sida: dhuumaha aan cillad lahayn ee gaadiidka dareere ah, tuubooyinka aan kala go 'lahayn ee dhismaha, aan fiicnayn ee kuleyliyaha iyo kulaylka.
Dhexroorka ka baxsan ee ahama aan sal lahayn ee aanu soo saarno waxay u dhaxaysaa 4.0mm ilaa 1219mm. Dhumucdiisuna waa 0.5mm ilaa 100mm. Biraha, waxaan nahay kuwo dhab ah.
| Tilmaamid | |
| Cabbirka | OD: 4.0 ~ 1219mm; WT: 0.5 ~ 100mm; Dhererka: 6m, 12m, Max.18m |
| Habka | Xumaan la'aan, Qabow Sawiran, Qabow duuban, Kulul duuban |
| Dhammaad | PE (Dhammaadka Cad), BE (Beveled End), NPT, BW (Butt Weld End) |
| Dusha sare | Gargaarka Qaadista, Toosinta (180#, 220#, 240#, 320#, 400#, 600#) |
| Miisaanka Aragtida (kg/m) | Miisaanka/mitirka = (OD-WT)*WT*0.02507LabadabaODiyoWTin mm. |
Fiiro gaar ah:
OD waa dhexroorka dibadda ee la cayimay.
WT waa dhumucda gidaarka ee la cayimay
Tuubooyinka birta ah waa in lagu guraa bilaash. Marka la isticmaalo annealing dhalaalaya, pickling looma baahna.
Fasalada ugu muhiimsan
| Austenitic/Super Austenitic Steel Aan-Aamiga Ahayn Dhuumaha | 304, 304H, 304L, 304LN, 321, 321H, 316, 316L, 316LN, 316Ti, 317L, 310S, 310H, 314, 347H, 904L, 347H, 904L,7 S310 31277 |
| Ferrite/Super Ferrite Dhuumaha birta ah ee aan Xumaanta lahayn | 405, 430, 439, 444, TP446-1/TP446-2, S44660, S44735, S44736 |
| Duplex/Super Duplex Dhuux-Bir Aan Xumaan lahayn | S31500, S31803, S32205, S32304, S32520, S32550, S32750, S32760 |
| Martensite/Super Martensite Dhuumaha birta ah ee aan Xumaanta lahayn | 410S, 410, 420, 420J2, 431, 17-4PH, 13Cr110, 17Cr110/125 |
| Nikel Alloy Dhuumaha aan Xumaan lahayn | N04400, N05500, N06600, N06601, N06025, N06617, N06625, N06690, N08810, N10276, N06022, N10665, N10675, N08020, N0808, N08080 30, N06035, N07750 |
Heerka Wax-soo-saarka
| GB | GB 5310, GB13296, GB/T 9948, GB/T14976, GB/T14975 |
| ASTM | ASTM A213/213M (ASME SA213/SA213M), ASTM A312/312M(ASME SA312/SA312M), ASTM A789/789M(ASME SA789/SA789M) , ASTM B423 (ASME SB423), ASTM B407 (ASME SB407), ASTM B668 (ASME SB668) |
| DIN | DIN 17456, DIN17458 |
| EN | EN10216-5 |
| JIS | JIS G3459, JIS G3463 |
Dulqaadyada Dhumucda gidaarka (ASTM A312)
| Naqshadeeye NPS | Dulqaadasho, % laga soo bilaabo magac ahaan | |
| Dhamaaday | Hoosta | |
| 1/8 ilaa 2-1/2 oo ay ku jiraan, dhammaan saamiga t/D | 20.0 | 12.5 |
| 3 ilaa 18 inch., t/D ilaa 5% oo ay ku jirto. | 22.5 | 12.5 |
| 3 ilaa 18 inch., t/D：5% | 15.0 | 12.5 |
| 20 iyo ka weyn, welded, dhammaan saamiga t/D | 17.5 | 12.5 |
| 20 iyo ka weyn, aan toos ahayn, t/D ilaa 5% oo ay ku jirto. | 22.5 | 12.5 |
| 20 iyo ka weyn, aan toos ahayn, t/D ：5% | 15.0 | 12.5 |
Fiiro gaar ah:
t = Dhumucda darbiga magac ahaan;
D = Dhexroorka Banaanka laga Dalbaday.
Dulqaadyada dhexroorka ka baxsan (ASTM A312)
| Naqshadeeye NPS | Dulqaadyada dhexroorka ka baxsan | |||
| Dhamaaday | Hoosta | |||
| In. | mm | In. | mm | |
| 1/8 ilaa 1-1/2, oo ay ku jiraan. | 1/64 (0.015) | 0.4 | 1/32 (0.031) | 0.8 |
| In ka badan 1-1/2 ilaa 4, oo ay ku jiraan. | 1/32 (0.031) | 0.8 | 1/32 (0.031) | 0.8 |
| In ka badan 4 ilaa 8, oo ay ku jiraan. | 1/16 (0.062) | 1.6 | 1/32 (0.031) | 0.8 |
| In ka badan 8 ilaa 18, oo ay ku jiraan. | 3/32 (0.093) | 2.4 | 1/32 (0.031) | 0.8 |
| In ka badan 18 ilaa 26, oo ay ku jiraan. | 1/8 (0.125) | 3.2 | 1/32 (0.031) | 0.8 |
| In ka badan 26 ilaa 34, oo ay ku jiraan. | 5/32 (0.156) | 4.0 | 1/32 (0.031) | 0.8 |
| In ka badan 34 ilaa 48, oo ay ku jiraan. | 3/16 (0.187) | 4.8 | 1/32 (0.031) | 0.8 |
U Dulqaadashada Toosanaanta (ASTM A312)
| OD cayiman, gudaha | Dhumucda gidaarka ee cayiman, gudaha | Curvature ugu badnaan 3ft, in. | Curvature ugu badan iyo Wadarta Dhererka, gudaha. |
| Ilaa 5.0 incl. | In ka badan 3% OD ilaa 0.5, oo ay ku jiraan. | 0.030 | 0.010 x dhererka, ft |
| In ka badan 5.0 ilaa 8.0, oo ay ku jiraan. | In ka badan 4% OD ilaa 0.75, oo ay ku jiraan. | 0.045 | 0.015 x dhererka, ft |
| In ka badan 8.0 ilaa 12.75, oo ay ku jiraan. | In ka badan 4% OD ilaa 1.0, oo ay ku jiraan. | 0.060 | 0.020 x dhererka, ft |
Macluumaadka Xidhmada
Tuubooyinka birta aan xidhnayn waxay ku xiran yihiin baahida macaamiisha. Si looga fogaado waxyeelo kasta oo ka dhalan karta inta lagu jiro gaadiidka caalamiga ah, waxaanu bixinaa habab baakad ikhtiyaari ah, oo ay ku jiraan bacaha tolmada leh, kiisyada alwaaxyada, iyo sanaadiiqda alwaax.
Waqtiga boostada: Abriil-12-2020