S355 JR Spiral Steel Pipe For Sewer Line

Kufotokozera Kwachidule:

Ndi chitukuko chofulumira cha zomangamanga zamakono, kufunikira kwa zipangizo zomangira zapamwamba komanso zolimba zawonjezeka kwambiri.Pakati pa zipangizo izi, S355 JR zitsulo zozungulira chitoliro chakhala chigawo chofunikira cha ntchito zosiyanasiyana zomangamanga.Mu blog iyi, tiwona kufunikira ndi ubwino wa mapaipi achitsulo a S355 JR, kufotokoza udindo wawo wofunikira pazipangizo zamakono.


Tsatanetsatane wa Zamalonda

Zolemba Zamalonda

S355 JR Spiral Steel PipeMphamvu ndi Zosiyanasiyana

 S355 JR chitoliro chachitsulo chozunguliraamapangidwa pogwiritsa ntchito zipangizo zamakono ndi zitsulo zamtengo wapatali kuti aziphatikiza mphamvu ndi kusinthasintha mu chinthu chimodzi.Mapaipiwa amapangidwa kuti azitha kupirira zovuta kwambiri, zomwe zimawapangitsa kukhala oyenera kugwiritsa ntchito mitundu yosiyanasiyana.Kaya amagwiritsidwa ntchito kunyamula madzi, mafuta kapena gasi, mapaipiwa amapereka ntchito yabwino komanso yolimba.

Mapangidwe amphamvu ndi kukhulupirika kwapangidwe

Chimodzi mwazinthu zodziwika bwino za chitoliro chachitsulo cha S355 JR ndikumanga kwake kolimba, komwe kumatsimikizira kukhulupirika kwadongosolo.Mapaipiwa amakhala ndi zozungulira zozungulira zomwe zimatsimikizira mphamvu yayikulu ndikuchepetsa chiopsezo cha kutayikira kapena kulephera.Mapangidwe apamwambawa amathandiza kuti mapaipi azitha kupirira katundu wolemetsa komanso nyengo yovuta, zomwe zimapangitsa kuti zikhale zoyenera kwa zomangamanga zofunika kwambiri monga milatho, tunnel ndi nyumba zapamwamba.

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

Kugonjetsedwa ndi dzimbiri ndi zinthu zachilengedwe

Pantchito iliyonse yomanga, kukhalitsa ndi kudalirika kwa zipangizo ndizofunika kwambiri.Mapaipi achitsulo a S355 JR amapambana pankhaniyi chifukwa amalimbana kwambiri ndi dzimbiri komanso zachilengedwe.Chitsulo chomwe chimagwiritsidwa ntchito popanga chimagwiritsidwa ntchito mwapadera kuti chiwonjezeke kukana kwake, kupanga mapaipi awa oyenera kuyika pamwamba ndi pansi.Kukaniza kumeneku sikungotsimikizira kukhulupirika kwa payipi, komanso kumachepetsa kwambiri ndalama zothandizira kukonza, ndikupangitsa kuti ikhale yotsika mtengo.

Wonjezerani kukhazikika komanso kuyanjana kwachilengedwe

Poyang'anizana ndi nkhawa zapadziko lonse zokhudzana ndi kusintha kwa nyengo komanso kuwonongeka kwa chilengedwe, makampani omangamanga akufunafuna njira zokhazikika.Chithunzi cha S355JRchitoliro chachitsulo chozungulirandi zobwezerezedwanso kwambiri ndipo zimathandiza kuti njira yokhazikikayi.Mapaipiwa akhoza kukonzedwanso ndi kugwiritsidwanso ntchito, kuchepetsa zinyalala ndi kusunga zachilengedwe.Kuphatikiza apo, moyo wawo wautali wautumiki umachepetsa kwambiri kufunika kosinthidwa, ndikuchepetsanso gawo lawo lonse la chilengedwe.

Tsatirani mfundo zabwino kwambiri

Chitoliro chachitsulo cha S355 JR chimapangidwa mosamala motsatira mfundo zokhwima.Izi zimatsimikizira kuti chitoliro chilichonse chimagwira ntchito mosasinthasintha ndikutsatira malamulo ofunikira otetezera.Kaya ndi ntchito zofunika kwambiri monga mapaipi amafuta ndi gasi kapena zomangamanga, mapaipiwa amapereka kudalirika, kudalirika komanso mtendere wamalingaliro kwa mainjiniya, makontrakitala ndi eni mapulojekiti.

Pomaliza

Mwachidule, chitoliro chachitsulo cha S355 JR chakhala gawo lofunikira la zomangamanga zamakono chifukwa champhamvu zake, kusinthasintha komanso magwiridwe antchito onse.Kapangidwe kake kolimba, kukana dzimbiri komanso kutsatira miyezo yapamwamba kumapangitsa kuti ikhale yabwino pantchito zomanga zosiyanasiyana.Kuphatikiza apo, kukhazikika kwawo komanso kuyanjana kwachilengedwe kumawonjezera phindu ndikuthandizira tsogolo lobiriwira.Pamene tikupitiriza kuchitira umboni kupita patsogolo kwa ntchito yomanga, zikuwonekeratu kuti chitoliro chachitsulo cha S355 JR chidzapitiriza kugwira ntchito yofunika kwambiri pakupanga dziko lomwe tikukhalamo.


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