Mapaipi Ogwira Ntchito Ndi Chitetezo Ndi S235 JR Spiral Steel Mapaipi

Kufotokozera Kwachidule:

Gawo ili la European Standard limatchula zaukadaulo woperekera magawo oziziritsa opangidwa ndi welds, magawo opanda dzenje a mawonekedwe ozungulira, masikweya kapena amakona anayi ndipo amagwira ntchito ku magawo amphako omwe amapangidwa ozizira popanda kutenthedwa pambuyo pake.

Cangzhou Spiral Steel Pipes Group Co., Ltd imapereka gawo lopanda kanthu la mipope yachitsulo yozungulira.


Tsatanetsatane wa Zamalonda

Zolemba Zamalonda

Chiyambi:

Masiku ano, kuyendetsa bwino kwa zakumwa ndi mpweya ndikofunikira m'mafakitale ambiri.Chimodzi mwazinthu zofunikira pakuwonetsetsa kuti ntchito yanu ikuyenda bwinodongosolo la pipenindikusankha mipope yoyenera.Pakati pa zosankha zosiyanasiyana zomwe zilipo,S235 JR Spiral Steel Pipendi chisankho chodalirika chifukwa cha khalidwe lake lapamwamba.Blog iyi ikufuna kufufuza ubwino wogwiritsa ntchito chitoliro chachitsulo cha S235 JR mu makina a mapaipi, kuyang'ana kwambiri mawonekedwe ake ozungulira.

Mechanical Property

kalasi yachitsulo

mphamvu zochepa zokolola
Mpa

Kulimba kwamakokedwe

Kutalikira pang'ono
%

Mphamvu zochepa zomwe zimakhudzidwa
J

Makulidwe odziwika
mm

Makulidwe odziwika
mm

Makulidwe odziwika
mm

pa kutentha kwa mayeso a

<16

>16≤40

<3

≥3≤40

≤40

-20 ℃

0 ℃

20 ℃

Chithunzi cha S235JRH

235

225

360-510

360-510

24

-

-

27

Chithunzi cha S275J0H

275

265

430-580

410-560

20

-

27

-

Chithunzi cha S275J2H

27

-

-

Chithunzi cha S355J0H

365

345

510-680

470-630

20

-

27

-

Chithunzi cha S355J2H

27

-

-

Chithunzi cha S355K2H

40

-

-

Chemical Composition

Chitsulo kalasi

Mtundu wa de-oxidation a

% ndi misa, pazipita

Dzina lachitsulo

Nambala yachitsulo

C

C

Si

Mn

P

S

Nb

Chithunzi cha S235JRH

1.0039

FF

0,17

-

1,40

0,040

0,040

0.009

Chithunzi cha S275J0H

1.0149

FF

0,20

-

1,50

0,035

0,035

0,009

Chithunzi cha S275J2H

1.0138

FF

0,20

-

1,50

0,030

0,030

-

Chithunzi cha S355J0H

1.0547

FF

0,22

0,55

1,60

0,035

0,035

0,009

Chithunzi cha S355J2H

1.0576

FF

0,22

0,55

1,60

0,030

0,030

-

Chithunzi cha S355K2H

1.0512

FF

0,22

0,55

1,60

0,030

0,030

-

a.Njira ya deoxidation imayikidwa motere:

FF: Chitsulo chopha kwathunthu chokhala ndi zinthu zomangira za nayitrogeni mu kuchuluka kokwanira kumanga nayitrogeni yomwe ilipo (mwachitsanzo min. 0,020 % okwana Al kapena 0,015 % sungunuka Al).

b.Kuchuluka kwa nayitrogeni sikugwira ntchito ngati mankhwala akuwonetsa kuchuluka kwa Al zomwe zili 0,020 % ndi chiŵerengero chochepa cha Al/N cha 2:1, kapena ngati zinthu zina zokwanira za N-binding zilipo.Zinthu zomangiriza za N zidzalembedwa mu Inspection Document.

Kuyesedwa kwa Hydrostatic

Utali uliwonse wa chitoliro uyenera kuyesedwa ndi wopanga ku mphamvu ya hydrostatic yomwe idzapangitse mukhoma wa chitoliro kupsinjika kosachepera 60% ya mphamvu zokolola zosachepera zomwe zafotokozedwa kutentha.Kupanikizika kumatsimikiziridwa ndi equation yotsatirayi:
P=2St/D

Kusiyanasiyana Kololedwa Pakulemera ndi Makulidwe

Utali uliwonse wa chitoliro uyenera kuyezedwa padera ndipo kulemera kwake sikuyenera kupitirira 10% kuposa kapena 5.5% pansi pa kulemera kwake, kuwerengeredwa pogwiritsa ntchito kutalika kwake ndi kulemera kwake pa kutalika kwake.
Kuzungulira kwakunja sikuyenera kusiyanasiyana kupitilira ± 1% kuchokera m'mimba mwake mwadzina
Makulidwe a khoma nthawi iliyonse sayenera kupitirira 12.5% ​​pansi pa makulidwe omwe atchulidwa

Chitoliro cha Helical Welded

1. Kumvetsetsa S235 JR chitoliro chachitsulo chozungulira:

S235 JR chitoliro chachitsulo chozungulirandi chitoliro chozungulira chomwe chimagwiritsidwa ntchito kwambiri pamapaipi.Amapangidwa ndi zitsulo zapamwamba kwambiri potsatira miyezo yapadziko lonse, kuonetsetsa kuti kukhazikika kwapamwamba ndi mphamvu.Kapangidwe kake kamakhala ndi mizere yozungulira yozungulira yazitsulo, zomwe zimawotchedwa mpaka kutalika komwe mukufuna.Njira yomangira iyi imapereka mipope zabwino kwambiri kuposa mapaipi achikhalidwe owongoka.

2. Ubwino womanga mapaipi ozungulira:

Kumanga kozungulira kozungulira kwa S235 JR Spiral Steel Pipe kumapereka maubwino ambiri pamapaipi.Choyamba, ma weld seams opitilira muyeso amakulitsa kukhulupirika kwa chitoliro, ndikupangitsa kuti ikhale yolimbana ndi zovuta zamkati ndi zakunja.Kapangidwe kameneka kamatsimikiziranso ngakhale kugawa katundu, kuchepetsa chiopsezo cha kulephera kwa chitoliro.Kuphatikiza apo, mawonekedwe ozungulira a chitoliro amachotsa kufunikira kwa kulimbitsa kwamkati, potero kumapangitsanso kuthekera koyenda komanso kuchepetsa kutayika kwamphamvu panthawi yakusamutsa madzimadzi.Kukhazikika kosalekeza kwa chitoliro chozungulira kumachepetsa chiopsezo cha kutayikira ndikuwongolera chitetezo ndi magwiridwe antchito a mapaipi.

3. Limbikitsani kulimba ndi kusinthasintha:

S235 JR Spiral Steel Pipe imapereka kulimba kwapamwamba chifukwa cha zida zake zomangira zapamwamba kwambiri.Amagonjetsedwa ndi dzimbiri, abrasion ndi nyengo yoipa, zomwe zimapangitsa kuti zikhale zabwino kwa ntchito zosiyanasiyana kuphatikizapo kayendetsedwe ka mafuta ndi gasi, machitidwe a madzi ndi ntchito zowonongeka.Kusinthasintha kwa mapaipiwa kumawathandiza kuti azisinthidwa mosavuta kuti akwaniritse zofunikira za polojekiti.Kuphatikiza apo, ndizosavuta kuziyika ndikuzisamalira, ndikuwonjezera kukopa kwawo ndikuthandiza kuti pakhale njira yotsika mtengo komanso yogwira ntchito nthawi.

4. Ubwino ndi kusakhazikika kwa chilengedwe:

Kusinthira ku S235 JR chitoliro chachitsulo chozungulira pamapaipi amathanso kubweretsa zabwino zachilengedwe.Moyo wawo wautali komanso kukana kuwonongeka kumachepetsa kufunika kosinthidwa pafupipafupi, zomwe zimapangitsa kuti mpweya uchepe komanso kuti zinyalala zizichepa.Kuphatikiza apo, kubwezeretsedwanso kwachitsulo kumapangitsa mapaipiwa kukhala njira yokhazikika mogwirizana ndi mfundo zozungulira zachuma.Pogwiritsa ntchito mapaipi achitsulo a S235 JR, mafakitale amatha kuonetsetsa kuti pamakhala njira yotetezeka komanso yodalirika yonyamulira madzi, potero kulimbikitsa tsogolo lobiriwira.

Pomaliza:

Kugwiritsa ntchito chitoliro chachitsulo cha S235 JR pamakina opangira mapaipi kumapereka maubwino angapo, kuphatikiza kulimba, chitetezo ndi magwiridwe antchito.Kapangidwe ka spiral welded amatsimikizira kukhulupirika kwake komanso kumapereka madzi odalirika m'mafakitale osiyanasiyana.Pophatikiza matekinoloje apamwamba ngati awa, tikutsegulira njira zamapaipi okhazikika komanso odalirika.


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