Faa'iidooyinka A252 Fasalka 3 Tuubooyinka Birta ee Loo Isticmaalo Dhisidda Dhuumaha Biyaha iyo Tuubooyinka Shidaalka

Sharaxaad Gaaban:

A252 Fasalka 3 tuubooyinka birta, sidoo kale loo yaqaantubbada arc hoostooda oo wareegsan, waa doorasho caan ah oo loogu talagalay dhismaha bulaacada iyo dhuumaha saliidda.Tuubooyinkan waxaa loogu talagalay inay u adkeystaan ​​xaaladaha ba'an waxayna bixiyaan faa'iidooyin badan codsiyadan.


Faahfaahinta Alaabta

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Mid ka mid ah faa'iidooyinka muhiimka ah eeA252 Fasalka 3 tuubo bir ah waa xooggeeda gaarka ah iyo cimri dhererkeeda.Tuubooyinkani waxay ka samaysan yihiin bir tayo sare leh waxayna aad ugu adkaysanayaan daxalka, xidhashada iyo saamaynta.Tani waxay ka dhigeysaa mid ku habboon in loo isticmaalo tuubooyinka bulaacada halkaasoo laga yaabo inay la kulmaan walxaha daxalka ah iyo culeysyo culus.Intaa waxaa dheer, xooggooda iyo cimrigooda ayaa ka dhigaya kuwo ku habboon in loo isticmaalo dhismaha dhuumaha saliidda, maadaama ay tahay inay u adkeystaan ​​cadaadiska sare iyo isbeddelka xaaladaha deegaanka.

Heerka  Heerka Birta Qaybaha Kiimikada (%) Hanti Jilicsan Charpy(V darajo)

Tijaabada Saamaynta

c Mn p s Si Mid kale Xoogga Wax-soo-saarka(Mpa) Xoogga Jilicsan(Mpa) (L0=5.65 √ S0) Daqadda fiditaanka (%)
max max max max max min max min max D ≤ 168.33mm D > 168.3mm
  

 

GB/T3091 -2008

Q215A ≤ 0.15 0.25 | 1.20 0.045 0.050 0.35   

Ku darida NbVTi si waafaqsan 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     

 

Ikhtiyaar ku dara mid ka mid ah walxaha NbVTi ama isku darka kasta oo iyaga ka mid ah

175   310   27  Hal ama laba ka mid ah tusmada adkaanta

Saamaynta tamarta iyo aagga dhogorta ayaa la dooran karaa.Waayo

L555, eeg heerka.

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    Sida birta darajada B,

Nb+V ≤ 0.03%;

birta ≥ fasalka B, ku darista ikhtiyaari Nb ama V ama kooda

isku darka, iyo Nb+V+Ti ≤ 0.15%

172   310    (L0=50.8mm) inuu ahaado

loo xisaabiyaa si waafaqsan qaacidada soo socota:

e=1944·A0 .2/U0 .0

A: Aagga muunada ee mm2 U: Xoogga ugu yar ee la cayimay ee Mpa

 Midna ama midna

ama labadaba

saamaynta

tamarta iyo

xiirid

aagga ayaa loo baahan yahay sida heerka adag.

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

Faa'iidada kale ee A252 Fasalka 3 dhuumaha birta ah waa kala duwanaanshaheeda.Tuubooyinkan ayaa lagu heli karaa cabbirro iyo dhumucyo kala duwan, taasoo ka dhigaysa inay ku habboon yihiin codsiyo kala duwan.Haddii wax yar la dhisokhadka bullaacadahaama xariiqda dhuumaha saliidda weyn, A252 Fasalka 3 tuubooyinka birta si fudud ayaa loo habeyn karaa si loo buuxiyo shuruudaha mashruuca ee gaarka ah.Intaa waxaa dheer, tuubooyinkan ayaa laga samayn karaatuubooyinka qaab-dhismeedka qayb-madhan, iyagoo sii ballaarinaya isticmaalkooda mashaariicda dhismaha.

Marka lagu daro xooggeeda iyo isku-dheellitirnaanteeda, A252 Fasalka 3 tuubooyinka birta ayaa sidoo kale caan ku ah waxtarkeeda.Tuubooyinkani waa sahlan yihiin in la rakibo waxayna u baahan yihiin dayactir yar, taas oo yaraynaysa kharashka guud ee mashruuca.Intaa waxaa dheer, adeeggooda dheer iyo iska caabbinta daxalka waxay xaqiijinayaan inay si xooggan u soo celinayaan maalgashiga bullaacadaha iyodhuumaha saliidda linemashaariicda dhismaha.

Dhuumaha SSAW

Faa'iidada kale ee muhiimka ah ee A252 Fasalka 3 birta birta ah waa waafaqsanaanta hababka dhismaha ee kala duwan.Tuubooyinkan waxaa lagu rakibi karaa iyadoo la adeegsanayo hababka qodista dhaqameed ama farsamooyin aan qodnayn sida qodista jihada toosan, tuubooyinka jeebka ama tunnel-yar yar.Dabacsanaantani waxay u oggolaanaysaa in si hufan oo kharash-ku-ool ah loo rakibo jawiyo adag oo kala duwan, oo ay ku jiraan meelaha magaalooyinka, marin-biyoodka iyo meelaha xasaasiga ah ee deegaanka.

Guud ahaan, A252 Fasalka 3 tuubooyinka birta waxay bixisaa faa'iidooyin kala duwan oo loogu talagalay dhismaha dhuumaha bulaacada iyo batroolka.Xooggooda, adkeysigooda, wax-ku-oolnimadooda iyo kharash-ku-oolnimadooda ayaa ka dhigaya kuwo ku habboon codsiyadan baahida badan.Haddii loo isticmaalo dhismaha tuubooyinka bulaacada ama saliidda, tuubooyinkani waxay bixiyaan waxqabad la isku halayn karo iyo qiimo wakhti dheer ah.Natiijo ahaan, waxay ahaanayaan xalka doorashada injineerada iyo qandaraaslayaasha raadinaya xalal waara oo la isku halayn karo.


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