I-GB/T5310-2017 ityhubhu engenamthungo kwibhoyila yoxinzelelo oluphezulu

Inkcazelo emfutshane:

Umgangatho ophezulu we-carbon structural steel, i-alloy structural iron, kunye nentsimbi yensimbi engenasici ekwazi ukumelana nobushushu, umbhobho wensimbi ongenamthungo woxinzelelo oluphezulu nangaphezulu kwemibhobho yebhoyila yomphunga kwi-GB/T5310-2007 standard. Izinto eziphathekayo ikakhulu yi-Cr-Mo alloy kunye ne-Mn Alloy, njenge-20G, i-20MnG, i-20MoG, i-12CrMoG, njl.


  • Intlawulo:30% idiphozithi, 70% L/C okanye B/L ikopi okanye 100% L/C emehlweni
  • Min.Ubungakanani boMyalelo:I-PC eyi-1
  • Ubunakho bokubonelela:Ngonyaka 20000 Tons Inventory of Steel Pipe
  • Ixesha lokukhokhela:7-14 iintsuku ukuba isitokhwe, 30-45 iintsuku ukuvelisa
  • Ukupakisha:Ukunyamalala okumnyama, i-bevel kunye ne-cap yombhobho ngamnye; I-OD engaphantsi kwe-219mm kufuneka ipakishwe kwi-bundle, kwaye ibhandle nganye ayidluli kwiitoni ezi-2.
  • Iinkcukacha zeMveliso

    Iithegi zeMveliso

    Isicelo

    Isetyenziswa ikakhulu kuxinzelelo oluphezulu kunye nenkonzo yobushushu obuphezulu bebhoyila (ityhubhu yeheater, ityhubhu yokufudumeza, ityhubhu yesikhokelo somoya, ityhubhu ephambili yomphunga kwizibiyeli zoxinzelelo oluphezulu kunye noxinzelelo oluphezulu). Ngaphantsi kwesenzo segesi ephezulu yokushisa kunye nomphunga wamanzi, ityhubhu iya ku-oxidize kwaye idle. Kuyadingeka ukuba umbhobho wensimbi unokuqina okuphezulu, ukuchasana okuphezulu kwi-oxidation kunye nokugqwala, kunye nokuzinza okuhle kwesakhiwo.

    IBanga eliPhambili

    IBanga le-carbon high-quality steel structure: 20g, 20mng, 25mng

    IBanga le-alloy yensimbi yesakhiwo: 15mog, 20mog, 12crmog, 15crmog, 12cr2mog, 12crmovg, 12cr3movsitib, njl.

    Kwimigangatho eyahlukeneyo kukho iBanga elahlukileyo

    GB5310 : 20G = EN10216 P235GH

     

    Izinto eziphathekayo C Si Mn P S Cr MO NI Al Cu Ti V
    P235GH ≤0.16 ≤0.35 ≤1.20 ≤0.025 ≤0.025 ≤0.3 ≤0.08 ≤0.3 ≤0.02 ≤0.3 ≤0.04 ≤0.02
    20G 0.17-0.24 0.17-0.37 0.35-0.65 ≤0.03 ≤0.03 - - - - - - -
    Izinto eziphathekayo Tensile strength Yima kancinci Ulwandiso
    20G 410-550 ≥245 ≥24
    P235GH 320-440 215-235 27
    360-500 25
    Izinto eziphathekayo Uvavanyo
    20G: Ukucaba I-Hydraulic Uvavanyo lweMpembelelo NDT Eddy Ubungakanani beGrazin Ubume beMicroscopic
    P235GH Ukucaba I-Hydraulic Uvavanyo lweMpembelelo NDT I-electromagnetic Ukwandiswa kweDrift Ukuvuza kokuqina

    Ukunyamezelana

    Ukutyeba kweendonga kunye neDayimitha yaNgaphandle:

    Ukuba akukho mfuneko zikhethekileyo, umbhobho uya kuhanjiswa njengedayamitha yangaphandle eqhelekileyo kunye nobukhulu bodonga oluqhelekileyo. Njengephepha elilandelayo

    Ukutyunjwa kokuhlelwa

    Indlela yokwenziwa

    Ubungakanani bombhobho

    Ukunyamezelana

    Ibanga eliqhelekileyo

    Ibanga eliphezulu

    WH

    Umbhobho oshushu (extrude)

    Idayamitha yangaphandle eqhelekileyo

    (D)

    <57

    Umhla 0.40

    ±0,30

    57 〜325

    SW35

    ±0.75%D

    ±0.5%D

    S>35

    ±1%D

    ±0.75%D

    >325 ukuya ku6.

    + 1%D okanye + 5.Thatha enye encinane一2

    > 600

    + 1%D okanye + 7,Thatha engaphantsi kwe2

    Ukutyeba kodonga oluqhelekileyo

    (S)

    <4.0

    ±|・丨)

    ±0.35

    >4.0-20

    + 12,5%S

    ±10%S

    >20

    DV219

    ±10%S

    ±7.5%S

    心219

    + 12.5%S -10%S

    10%S

    WH

    Umbhobho wokwandisa i-Thermal

    Idayamitha yangaphandle eqhelekileyo

    (D)

    zonke

    ±1%D

    ±0.75%.

    Ukutyeba kodonga oluqhelekileyo

    (S)

    zonke

    + 20%S

    -10%S

    + 15%S

    -io%s

    i-WC

    Kuyabanda (kuqengqiwe)

    Umbhobho

    Idayamitha yangaphandle eqhelekileyo

    (D)

    <25.4

    ±'L1j

    -

    >25.4 〜4()

    ±0.20

    > 40 〜50

    |:0.25

    -

    >50〜60

    ±0.30

    >60

    ±0.5%D

    Ukutyeba kodonga oluqhelekileyo

    (S)

    <3.0

    ±0.3

    ±0.2

    >3.0

    S

    ±7.5%S

    Ubude:

    Ubude obuqhelekileyo bemibhobho yentsimbi yi-4 000 mm ~ 12 000 mm. Emva kokubonisana phakathi komthengisi kunye nomthengi, kwaye ugcwalise isivumelwano, inokuhanjiswa imibhobho yentsimbi kunye nobude obungaphezu kwe-12 000 mm okanye mfutshane kune-I 000 mm kodwa ingabi mfutshane kune-3 000 mm; ubude obufutshane Inani lemibhobho yentsimbi engaphantsi kwe-4,000 mm kodwa ingabi ngaphantsi kwe-3,000 mm ayiyi kudlula i-5% yenani lemibhobho yentsimbi ehanjiswa

    Ubunzima bokuhanjiswa:
    Xa umbhobho wensimbi uhanjiswa ngokomlinganiselo wangaphandle wegama kunye nobukhulu bodonga olubizwa ngokuba yi-nominal yangaphakathi kunye nobukhulu bodonga, umbhobho wensimbi uhanjiswa ngokobunzima bangempela. Isenokuhanjiswa ngokobunzima bethiyori.
    Xa umbhobho wensimbi uhanjiswa ngokomlinganiselo wangaphandle wegama kunye nobukhulu obuncinci bodonga, umbhobho wensimbi uhanjiswa ngokwesisindo sangempela; amaqela obonelelo kunye nebango ayathethathethana. Kwaye kubonisiwe kwikhontrakthi. Umbhobho wensimbi unokuhanjiswa ngokobunzima bethiyori.

    Ukunyamezela ubunzima:
    Ngokweemfuno zomthengi, emva kokubonisana phakathi komthengisi kunye nomthengi, kunye nekhontrakthi, ukutenxa phakathi kobunzima bokwenene kunye nobunzima bethiyori yombhobho wentsimbi yokuhanjiswa kuya kuhlangabezana nezi mfuno zilandelayo:
    a) Umbhobho wentsimbi enye: ± 10%;
    b) Ibhetshi nganye yemibhobho yentsimbi enobungakanani obuncinane be-10 t: ± 7.5%.

    Imfuneko yoVavanyo

    Uvavanyo lweHydraustatic:

    Umbhobho wentsimbi kufuneka uvavanywe nge-hydraulically nganye nganye. Uxinzelelo oluphezulu lovavanyo luyi-20 MPa. Ngaphantsi koxinzelelo lovavanyo, ixesha lokuzinzisa kufuneka lingabi ngaphantsi kwe-10 s, kwaye umbhobho wensimbi akufanele uvuze.

    Emva kokuba umsebenzisi evumile, uvavanyo lwe-hydraulic lunokutshintshwa ngovavanyo lwangoku lwe-eddy okanye uvavanyo lokuvuza kwemagnethi.

    Uvavanyo olungonakaliyo:

    Imibhobho efuna ukuhlolwa okungakumbi kufuneka ihlolwe nge-ultrasonically nganye. Emva kokuba uthethwano lufuna imvume yeqela kwaye luchazwe kwikhontrakthi, olunye uvavanyo olungonakalisi lungongezwa.

    Uvavanyo lokucaba:

    Iityhubhu ezinobukhulu obungaphandle obungaphezulu kwe-22 mm ziya kufakwa kuvavanyo lokucaba. Akukho delamination ebonakalayo, amabala amhlophe, okanye ukungcola kufuneka kwenzeke ngexesha lonke uvavanyo.

    Uvavanyo lokuvutha:

    Ngokweemfuno zomthengi kwaye zichazwe kwikhontrakthi, umbhobho wensimbi kunye nobubanzi obungaphandle ≤76mm kunye nodonga lwamadonga ≤8mm lunokwenziwa uvavanyo lokuvutha . Uvavanyo lwenziwa kwiqondo lobushushu begumbi kunye ne-taper ye-60 °. Emva kokuvutha, isantya sokuvutha kwedayimitha yangaphandle kufuneka ihlangabezane neemfuno zetafile elandelayo, kwaye izinto zokuvavanya akufanele zibonise ukuqhekeka okanye ukukrazula.

    Uhlobo lwentsimbi

     

     

    Umyinge wokuvutha wedayamitha yangaphandle yombhobho wentsimbi/%

    I-Diameter yangaphakathi / i-Outer Diameter

    <0.6

    >0.6 〜0.8

    >0.8

    Umgangatho ophezulu we-carbon structural steel

    10

    12

    17

    Intsimbi ye-alloy yesakhiwo

    8

    10

    15

    •Idayimitha yangaphakathi ibalwa kwisampulu.

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