SSAW vs. LSAW: Yuav Ua Li Cas Xaiv Txoj Cai Welded Steel Yeeb Nkab rau Koj Qhov Haujlwm?

Hauv ntiaj teb loj - txoj kab uas hla steel kav, kev sib cav ntawmSSAW(Spiral Submerged Arc Welded) thiab LSAW (Longitudinal Submerged Arc Welded)yog ntau tshaj li tus nqi -nws yog hais txog engineering kev nyab xeeb, txwv tsis pub, thiab qhov project ntev.

Kev xaiv cov txheej txheem vuam tsis raug tuaj yeem ua rau txoj haujlwm qeeb lossis, nyob rau hauv qhov xwm txheej hnyav, kev puas tsuaj rau cov kav dej tsis ua haujlwm. Cov lus qhia no rhuav tshem qhov sib txawv tseem ceeb, tshwj xeeb tshaj yog tsom rau "25mm thickness threshold" uas txhua tus neeg muag khoom yuav tsum paub.

1. SSAW vs. LSAW: Cov Txheej Txheem Txheej Txheem Sib txawv

 

Nkag siab txog txoj cai tsim khoom yog thawj kauj ruam hauv kev txiav txim siab xaiv:

• SSAW (kauv Welded):Xav tias zoo li ibdaim ntawv phuam yob. Ib tug steel sawb yog twisted rau hauv ib tug kauv zoo thiab welded. Qhov no tso cai rau kev nruam zus tau tej cov diameters loj heev los ntawm nqaim steel coils.
• LSAW (Ncaj Seam Welded):Xav txog nws zoo lifolding ib daim ntawv. Ib daim hlau hnyav hnyav yog nias rau hauv "U" lossis "O" thiab welded raws ib leeg ncaj seam. Qhov no yog lub npe hu uaUOE lossis JCOE txheej txheem.

2. Lub 25 hli tseem ceeb txwv: Vim li cas 27mm hloov txhua yam

Ib lo lus nug feem ntau hauv kev lag luam yog:"Kuv puas tuaj yeem siv kauv yeeb nkab rau 27mm phab ntsa tuab?

Cov lus teb luv luv yog: Tsis yog.Ntawm ib lub thickness ntawm27mm ib, LSAW tsis yog ib qho kev xaiv ntxiv lawm - nws yog qhov tsim nyog. Nov yog vim li cas:

• Tshuab muaj peev xwm:Feem ntau cov kauv vuam tshuab ncav cuag lawv lub cev txwv nyob ib ncig ntawm25 hli. Kev sim "kauv" lub phaj tuab 27 hli zoo li sim khoov cov khoom steel los ntawm txhais tes- cov cuab yeej tsuas tuaj yeem daws qhov kev ntxhov siab.
• Residual Stress:Khoov daim hlau tuab rau hauv ib lub kauv ua rau muaj zog tensile kev nyuaj siab. Hauv qhov sib piv, LSAW siv txoj kev "tuag-nias" uas ua rau muaj kev ntxhov siab tsis sib xws, ua rau nws muaj kev nyab xeeb dua rau qhov chaw siab - siab.
• International Standards:Raws liAPI cov qauv, sab sauv txwv rau kauv yeeb nkab feem ntau nyob ib ncig ntawm 25.4mm. Tshaj li qhov no, tau txais kev lees paub zoo lossis kev pov hwm rau cov kav dej kav ntev dhau los ua nyuaj heev.

3. Cov lus sib piv: Ntawm -a-Glance Guide

4. Kev Qhia Txog Kev Xaiv: Thaum twg yuav siv qhov twg?

Raws li kev pom zoo ntawm kev lag luam thiab kev coj ua hauv ntiaj teb engineering, ua raws li cov lus pom zoo no:

Xaiv SSAW (kauv) Yog tias:

• Koj phab ntsa thickness yog25 hli.
• Daim ntawv thov no yog siv rau kev thauj cov dej siab, piling, lossis kev siv me me.
• Cov peev nyiaj yog nruj, thiab ib puag ncig tsis yog - tseem ceeb.

Xaiv LSAW (Straight Seam) Yog tias:

• Koj phab ntsa thickness yog26mm ib(Qhov yuav tsum tau ua).
• Lub raj xa dej yog rausiab - roj / roj, subsea, lossis seismic zones.
• Lub kaw lus tau ntsib kev kub ntxhov lossis nquag pib- nres (LSAW muaj3x siab zog tsis kam).

Xaus: Sib npaug kev nyab xeeb thiab kev lag luam

Kev xaiv txuj ci yog qhov kawg txog kev nrhiav qhov sib npaug ntawm kev nyab xeeb thiab tus nqi. Thaum SSAW muaj tus nqi zoo tshaj -kev ua tau zoo rau cov haujlwm txheem, cov lus qhia "kev nyab xeeb" cov lus qhia txiav txim siab rauLSAWib zaug koj ncav cuag ib lub thickness zoo li27mm ib.

Rau cov txheej txheem tseem ceeb, LSAW muab kev thaj yeeb nyab xeeb ntawm lub siab uas los nrog lub neej ua haujlwm ntev dua, kev sib koom ua ke yooj yim dua, thiab ua raws li cov qauv kev nyab xeeb thoob ntiaj teb.

Cov Lus Qhia Tshwj Xeeb: Yog tias koj tus qauv tsim qhia txog 1200 x27mm, ib txwm xav kom koj tus neeg muag khoom muab "Expansion Inspection Report" thiab paub meej tias kev siv UOE txheej txheem los xyuas kom meej qhov siab tshaj plaws weld.

Hu rau peb pab neeg ua haujlwm engineering kom muaj kev tshaj lij los yog kev sib tham txog koj qhov tshwj xeeb ntawm cov kav dej.

Email:baohui@bhsteelpipe.com