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    Chitoliro cha Zitsulo cha Spiral Seam Chopangira Mapaipi a Madzi Okhala Pansi pa Dziko

    Chitoliro chachitsulo cha Spiral Seam cha Mapaipi a Madzi Omwe Ali Pansi pa Dziko Chithunzi Chowonetsedwa
    • Chitoliro cha Zitsulo cha Spiral Seam Chopangira Mapaipi a Madzi Okhala Pansi pa Dziko

    Kufotokozera Kwachidule:

    Tikukudziwitsani zachitoliro chozungulira cha msoko za mapaipi amadzi apansi pa nthaka. Zomangamanga za luso limeneli ndi chitoliro chozungulira, cholumikizidwa mwaukadaulo pogwiritsa ntchito ukadaulo wapamwamba kwambiri wowotcherera mapaipi achitsulo pamsika.


    Tsatanetsatane wa Zamalonda

    Ma tag a Zamalonda

    Thechitoliro cha madzi cha pansi pa nthakandi chitoliro chachitsulo chozungulira chopangidwa ndi njira yodziunjikira ya waya wawiri wozungulira mbali zonse ziwiri. Chitolirocho chimapangidwa ndi zitsulo zomangira ndipo chimatulutsidwa pa kutentha kofanana kuti chikhale cholimba komanso chokhalitsa.

    Katundu Waukulu Wachilengedwe ndi Wamankhwala a Mapaipi Achitsulo (GB/T3091-2008, GB/T9711-2011 ndi API Spec 5L)

    		        

    Muyezo

    Kalasi yachitsulo

    Zinthu Zamankhwala (%)

    Katundu Wolimba

    Mayeso a Charpy (V notch) Impact
    c Mn p s Si

    Zina

    Mphamvu Yopereka (Mpa)

    Mphamvu Yokoka (Mpa)

    （L0=5.65 √ S0）Mphindi Yotambasula （%）
    kuchuluka kuchuluka kuchuluka kuchuluka kuchuluka mphindi kuchuluka mphindi kuchuluka D ≤ 168.33mm D ＞ 168.3mm

    GB/T3091 -2008

    		 Q215A ≤ 0.15 0.25 ＜ 1.20 0.045 0.050 0.35

    Kuwonjezera Nb\V\Ti motsatira GB/T1591-94

    		 215   335   15 > 31  
    Q215B ≤ 0.15 0.25-0.55 0.045 0.045 0.035 215 335 15 > 31
    Q235A ≤ 0.22 0.30 ＜ 0.65 0.045 0.050 0.035 235 375 15 >26
    Q235B ≤ 0.20 0.30 ≤ 1.80 0.045 0.045 0.035 235 375 15 >26
    Q295A 0.16 0.80-1.50 0.045 0.045 0.55 295 390 13 >23
    Q295B 0.16 0.80-1.50 0.045 0.040 0.55 295 390 13 >23
    Q345A 0.20 1.00-1.60 0.045 0.045 0.55 345 510 13 >21
    Q345B 0.20 1.00-1.60 0.045 0.040 0.55 345 510 13 >21

    GB/T9711-2011（PSL1）

    		 L175 0.21 0.60 0.030 0.030  

    Ngati mukufuna kuwonjezera chimodzi mwa zinthu za Nb\V\Ti kapena kuphatikiza kulikonse kwa izo

    		 175   310  

    27

    Chimodzi kapena ziwiri mwa zizindikiro za kulimba kwa mphamvu ya impact ndi malo odulira zingasankhidwe. Pa L555, onani muyezo.
    L210 0.22 0.90 0.030 0.030 210 335

    25
    L245 0.26 1.20 0.030 0.030 245 415

    21
    L290 0.26 1.30 0.030 0.030 290 415

    21
    L320 0.26 1.40 0.030 0.030 320 435

    20
    L360 0.26 1.40 0.030 0.030 360 460

    19
    L390 0.26 1.40 0.030 0.030 390 390

    18
    L415 0.26 1.40 0.030 0.030 415 520

    17
    L450 0.26 1.45 0.030 0.030 450 535

    17
    L485 0.26 1.65 0.030 0.030 485 570

    16

    API 5L (PSL 1)

    		 A25 0.21 0.60 0.030 0.030  

    Pa chitsulo cha giredi B, Nb+V ≤ 0.03%; pa chitsulo ≥ giredi B, kuwonjezera Nb kapena V kapena kuphatikiza kwawo, ndi Nb+V+Ti ≤ 0.15%

    		 172   310  

    （L0=50.8mm）kuti ziwerengedwe motsatira njira iyi:e=1944·A0 .2/U0 .0 A: Dera la chitsanzo mu mm2 U: Mphamvu yochepa yokhazikika mu Mpa

    Palibe mphamvu iliyonse kapena zonse ziwiri zomwe zimafunika pa mphamvu yokhudza kuuma kwa chitoliro ndi malo odulira ubweya.
    A 0.22 0.90 0.030 0.030   207 331
    B 0.26 1.20 0.030 0.030   241 414
    X42 0.26 1.30 0.030 0.030   290 414
    X46 0.26 1.40 0.030 0.030   317 434
    X52 0.26 1.40 0.030 0.030   359 455
    X56 0.26 1.40 0.030 0.030   386 490
    X60 0.26 1.40 0.030 0.030   414 517
    X65 0.26 1.45 0.030 0.030   448 531
    X70 0.26 1.65 0.030 0.030   483 565

    Kapangidwe ka chitoliro chozungulira chimatsimikizira kuti ndi champhamvu kwambiri komanso cholimba, zomwe zimapangitsa kuti chikhale chisankho chabwino kwambiri cha machitidwe amadzi apansi panthaka.

    Kuwonjezera pa kulimba ndi kulimba, mapaipi amadzi apansi panthaka adapangidwa kuti azigwiritsidwa ntchito mosavuta. Kapangidwe ka msoko wozungulira ndi kosinthasintha komanso kosinthika, zomwe zimapangitsa kuti zikhale zosavuta kuyendetsa ndi kuyika mapaipi ngakhale pamalo ovuta kwambiri. Izi zikutanthauza kuti mutha kuyala mapaipi mwachangu komanso moyenera, zomwe zimapulumutsa nthawi ndi ndalama zogwirira ntchito.

    Kuphatikiza apo, kugwiritsa ntchito zipangizo zapamwamba komanso ukadaulo wapamwamba wowotcherera kumaonetsetsa kuti mapaipi amadzi apansi panthaka ndi olimba kwambiri ku dzimbiri ndi dzimbiri. Izi zikutanthauza kuti idzasunga umphumphu wake ndi magwiridwe antchito kwa zaka zambiri, ngakhale pansi pa nthaka pakakhala zovuta.

    Njira Zowotcherera Mapaipi
    Chitoliro chopangidwa ndi polyurethane

    Mapaipi athu amadzi apansi panthaka amapezeka m'makulidwe osiyanasiyana kuti akwaniritse zosowa za polojekiti yanu. Kaya mukuyika madzi ang'onoang'ono apakhomo kapena makina akuluakulu amafakitale, tili ndi chitoliro choyenera kwa inu. Gulu lathu la akatswiri lingaperekenso upangiri ndi chithandizo choyenera kuti chikuthandizeni kusankha mapaipi omwe akukwaniritsa zosowa zanu.

    Ponena za makina oyendetsera madzi pansi pa nthaka, mufunika chitoliro chomwe mungachidalire. Ndi kapangidwe kapamwamba ka ma spiral joint, zipangizo zabwino komanso kuwotcherera mwaluso, mapaipi athu amadzi pansi pa nthaka ndi abwino kwambiri pa netiweki iliyonse yoperekera madzi. Chitolirochi chimakhala cholimba, chodalirika komanso chosavuta kuyika, chimakupatsani mtendere wamumtima komanso magwiridwe antchito abwino kwambiri.

    Mwachidule, mapaipi ozungulira ndi chisankho chabwino kwambiri kwa aliyense amene akufuna njira yabwino kwambiri yogawa madzi. Ndi kapangidwe kake kapamwamba ka spiral seam komanso akatswiri.kuwotcherera chitoliro chachitsulo, chitolirochi chimapereka mphamvu zosayerekezeka, kusinthasintha komanso kukana dzimbiri. Musamachepetse ubwino wa madzi apansi panthaka yanu - sankhani mapaipi amadzi apansi panthaka ngati yankho lomwe mungadalire.

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