Shinestar STEEL GROUP CO., LTD

盛仕达 钢铁 股份有限公司

piegare

Breve descrizione:


  • Parole chiave: tubo Bend, Steel Pipe Bend, vasca Bend, Bend induzione, induzione Hot Bend
  • Dimensioni: NPS from 1/2'' to 72'', DN from 15 to 1800,WT:
  • Materiale: acciaio al carbonio --- API 5L, ASME B16.49, EN 10218; lega di acciaio --- ASTM A234, acciaio inossidabile --- ASTM 312/403 304 / 304L / 316 / 316L / 613Ti / 321 / 317L / 310S
  • Raggio di curvatura: 2.5D / 3D / 4D / 5D / 6D / 7D / 8D / 9D / 10D
  • Bend Angolo:  15/30/45/60/90/135/180 deg
  • Finisce: Square Ends/Plain Ends (Straight Cut, Saw Cut, Torch Cut), Beveled/Threaded Ends
  • Consegna: BKS, NBK, BK, BKW, GBK (+ A), NBK (+ N), BK (+ C)
  • Uso: For Conveying Gas, Water and Oil Either in the Oil or Natural Gas Industries
  • Dettagli del prodotto

    specificazione

    Standard

    Painting & Coating

    Packing & Loading

    1. Bend tubing:

    Tubo curvatura è il termine generico per processi di formatura di metallo usati per formare permanentemente tubi o tubazioni. Si deve distinguere tra le procedure di modulo-bending forma libera e legata, nonché tra calore sostenuto e fredde procedure formatura.

    2. Processes:

    Tube bending as a process starts with loading a tube into a tube or pipe bender and clamping it into place between two dies, the clamping block and the forming die. The tube is also loosely held by two other dies, the wiper die and the pressure die.

    The process of tube bending involves using mechanical force to push stock material pipe or tubing against a die, forcing the pipe or tube to conform to the shape of the die. Often, stock tubing is held firmly in place while the end is rotated and rolled around the die. Other forms of processing including pushing stock through rollers that bend it into a simple curve.[2] For some tube bending processing, a mandrel is placed inside the tube to prevent collapsing. The tube is held in tension by a wiper die to prevent any creasing during stress. A wiper die is usually made of a softer alloy such as aluminum or brass to avoid scratching or damaging the material being bent.

    Pressa piegatrice:

    Press bending is probably the first bending process used on cold pipes and tubing. In this process a die in the shape of the bend is pressed against the pipe forcing the pipe to fit the shape of the bend. Because the pipe is not supported internally there is some deformation of the shape of the pipe, resulting in an oval cross section. This process is used where a consistent cross section of the pipe is not required. Although a single die can produce various shapes, it only works for one size tube and radius.

    Rotary pareggio flessione:

    utensili completa per il sorteggio rotativo piegatura

    Rotary draw bending (RDB) is a precise technology, since it bends using tooling or "die sets" which have a constant center line radius (CLR), alternatively indicated as mean bending radius (Rm).

    Roll bending:

    During the roll bending process the pipe, extrusion, or solid is passed through a series of rollers (typically three) that apply pressure to the pipe gradually changing the bend radius in the pipe. The pyramid style roll benders have one moving roll, usually the top roll. Double pinch type roll benders have two adjustable rolls, usually the bottom rolls, and a fixed top roll. This method of bending causes very little deformation in the cross section of the pipe. This process is suited to producing coils of pipe as well as long gentle bends like those used in truss systems.

    Induction bending:

    An induction coil is placed around a small section of the pipe at the bend point. It is then induction heated to between 800 and 2,200 degrees Fahrenheit (430 and 1,200 C). While the pipe is hot, pressure is placed on the pipe to bend it. The pipe can then be quenched with either air or water spray or be cooled against ambient air.

    Induction bending is used to produce bends for a wide range of applications, such as (thin walled) pipe lines for both the upstream and down stream and on- and off shore segments of the petrochemical industry, large radius structural parts for the construction industry, thick walled, short radius bends for the power generating industry and city heating systems.

    Big advantages of induction bending are:

    no need for mandrels
    bend radii and angles (1°-180°) can be freely selected
    highly accurate bend radii and angles
    accurate pipe spools can easily be produced
    significant savings can be obtained on field welds
    wide range of pipe sizes can be accommodated in one machine (1” OD thru 80”OD)
    excellent wall thinning and ovality values


  • Precedente:
  • Successivo:

  • Per battuto del prodotto (WP) Dimension è coperto in

    ASME B16.9- which is standard for Factory-made Wrought Butt-welding Fittings for size NPS 1⁄₂ to NPS 48” and

    And B16.28- which is standard for Wrought Steel Butt-Welding Short Radius Elbows and Returns for size NPS 1⁄₂ to NPS 24”

    la specificatio di curva

    DIMENSIONE TUBO NOMINALE DIAMETRO ESTERNO TORNA ALLA FACCIA Centro a centro
    Inch. OD UN B C D
    1/2 21.3 48 - 76 -
    3/4 26.7 43 - 57 -
    1 33.4 56 41 76 51
    1 1/4 42.2 70 52 95 64
    1 1/2 48,3 83 62 114 76
    2 60.3 106 81 152 102
    2 1/2 73 132 100 191 127
    3 88.9 159 121 229 152
    3 1/2 101.6 184 140 267 178
    4 114.3 210 159 305 203
    5 141,3 262 197 381 254
    6 168.3 313 237 457 305
    8 219,1 414 313 610 406
    10 273,1 518 391 762 508
    12 323,9 619 467 914 610
    14 355,6 711 533 1067 711
    16 406.4 813 610 1219 813
    18 457,2 914 686 1372 914
    20 508 1016 762 1524 1016
    22 559 1118 838 1676 1118
    24 610 1219 914 1829 1219

     

    Raccordi tubi Dimensioni Tolleranza secondo ASME B16.9

    la specificatio di curva-01

    DIMENSIONE TUBO NOMINALE TUTTI I RACCORDI TUTTI I RACCORDI TUTTI I RACCORDI Gomiti e TEES 180 ° RETURN BENDS 180 ° RETURN BENDS 180 ° RETURN BENDS RIDUZIONI CAPS
    NPS OD a smussatura (1), (2) Id al termine
    (1), (3), (4)
    Spessore parete (3) Centro-to-End Dimensione A, B, C, M Da centro a centro O Back-to-Face K Allineamento di Fine U Lunghezza complessiva H Lunghezza totale E
    ½ a 2½ 0.06
    -0.03
    0,03 Non meno del 87,5% dello spessore nominale 0.06 0.25 0.25 0,03 0.06 0,12
    3-3 ½ 0.06 0.06 Non meno del 87,5% dello spessore nominale 0.06 0.25 0.25 0,03 0.06 0,12
    4 0.06 0.06 Non meno del 87,5% dello spessore nominale 0.06 0.25 0.25 0,03 0.06 0,12
    5 a 8 0,09
    -0.06
    0.06 Non meno del 87,5% dello spessore nominale 0.06 0.25 0.25 0,03 0.06 0.25
    Da 10 a 18 0.16
    -0.12
    0,12 Non meno del 87,5% dello spessore nominale 0,09 0,38 0.25 0.06 0,09 0.25
    20 a 24 0.25
    -0.19
    0,19 Non meno del 87,5% dello spessore nominale 0,09 0,38 0.25 0.06 0,09 0.25
    Da 26 a 30 0.25
    -0.19
    0,19 Non meno del 87,5% dello spessore nominale 0,12 ... ... ... 0,19 0,38
    32 a 48 0.25
    -0.19
    0,19 Non meno del 87,5% dello spessore nominale 0,19 ... ... ... 0,19 0.38 

    lega di nichel

    ASTM / ASME SB 336 UNS 2200 (NICKEL 200), UNS 2201 (NICKEL 201), UNS 4400 (MONEL 400), UNS 8020 (LEGA 20/20 CB 3, UNS 8825 INCONEL (825), UNS 6600 (INCONEL 600), UNS 6601 (INCONEL 601), UNS 6625 (INCONEL 625), UNS 10276 (HASTELLOY C 276)

    Acciaio inossidabile

    ASTM / ASME SA 403 GR WP “S” / “W” /”WX” 304, 304L, 304H, 304N, 304LN, 309, 310H, 316, 316H, 317, 317L, 321, 321H, 347, 347 H.

    acciaio Duplex

    ASTM / ASME SA 815 UNS NO.S 31803, 32205 S, S 32550, 32750 S, S 32760.

    Acciaio al carbonio

    ASTM / ASME A 234 WPB, WPC ASTM / ASME A 860 WPHY 42, WPHY 46, WPHY 52, WPH 60, 65 e WPHY WPHY 70.

    Acciaio legato

    ASTM / ASME A 234 WP 1, WP 5, 9 WP, WP 11, WP 12, WP 22, WP 23, WP 91.

    Composizione chimica Contenuto Proprietà meccaniche
    materiale NO C Mn Si S P Cr momento Ni Resistenza alla trazione Carico di snervamento Allungamento
    A234 WPB ≤0.3 0,29-1,06 ≥0.1 ≤0.058 ≤0.05 / / / 415-585 ≥240 ≥30
    A234 WP5 ≤0.15 ≤0.6 ≤0.5 ≤0.04 ≤0.03 4-6 0,44-0,65 / 415-585 ≥205 ≥20
    A403 WP304 ≤0.08 ≤2 ≤1 ≤0.040 ≤0.030 18-20 /  8-11 ≥515 ≥205 ≥30
    A403 WP316L ≤0.03 ≤2 ≤1 ≤0.045 ≤0.03 16-18 2-3  10-15 ≥485 ≥170 ≥30
    WPHY60 ≤0.20 1-1,45 0,15-0,4 ≤0.015 ≤0.030 / / / ≥515 ≥415 /

    Lubrificazione Luce, la pittura nera, PE / 3PE anticorrosione Coating

    piegare

    requisiti curva planking ad induzione

    Ci concentriamo su ogni procedura per assicurare la qualità, il pacchetto di solito prendiamo è plancia i gomiti di tubi in acciaio con poli sacchetti ambientali, e poi in casse di legno libera fumigazione o plate.we legno anche accettare pacchetto su misura come OEM per via negoziale.

    1. Material shall be packed ready for export in a manner which allows easy handling and prevents damage,vendor shall submit their standard packing procedure to purchaser for approval.
    2. estremità aperte di montaggio e flange sono forniti con tappi di protezione in plastica resistente o fini caps.For smussati, i tappi devono proteggere l'intera area della smussatura.
    3. Acqua materiale barriera a prova deve essere utilizzato per materiale in acciaio inox per la protezione contro gli attacchi di cloro da esposizione ad atmosfere acqua salata.
    4. elementi in acciaio al carbonio e acciaio inossidabile non possono essere conservati insieme e devono essere imballati separatamente.l'imballaggio di piegatura