Ubwino Wogwiritsa Ntchito Mapaipi Achitsulo Omwe Amalowa M'madzi Ozungulira Pamapaipi Amadzi Omwe Amagwiritsidwa Ntchito Pansi pa Dziko

Ubwino Wogwiritsa Ntchito Mapaipi Achitsulo Omwe Amalowa M'madzi Ozungulira Chithunzi Chowonetsedwa

Kufotokozera Kwachidule:

Mukayika mipope yamadzi pansi pa nthaka, ndikofunikira kusankha mtundu woyenera wa chitoliro kuti zitsimikizire kulimba komanso kukhala ndi moyo wautali. Chisankho chodziwika bwino cha mipope yamadzi pansi pa nthaka ndi chitoliro cholumikizidwa ndi spiral welded, chomwe chimadziwikanso kuti chitoliro chachitsulo cha SSAW.

Tumizani imelo kwa ife

Tsatanetsatane wa Zamalonda

Ma tag a Zamalonda

Chitoliro chachitsulo cha SSAWndi mtundu wa chitoliro cholumikizidwa ndi arc chomwe chimagwiritsidwa ntchito m'njira zosiyanasiyana, kuphatikizapo mizere ya pansi pa nthaka. Njira yake yapadera yolumikizira imapanga mapaipi akuluakulu okhala ndi makulidwe ofanana a khoma, zomwe zimapangitsa kuti ikhale yoyenera kunyamula madzi pansi pa nthaka.

Katundu wa Makina

kalasi yachitsulo	mphamvu yocheperako yopezera phindu Mpa		Kulimba kwamakokedwe		Kutalikirana kochepa %	Mphamvu yochepa kwambiri J
kalasi yachitsulo	Kunenepa kotchulidwa mm		Kunenepa kotchulidwa mm		Kunenepa kotchulidwa mm	kutentha koyesedwa kwa
	16	＞16≤40	＜3	≥3≤40	≤40	-20℃	0℃	20℃
S235JRH	235	225	360-510	360-510	24	-	-	27
S275J0H	275	265	430-580	410-560	20	-	27	-
S275J2H	275	265	430-580	410-560	20	27	-	-
S355J0H	365	345	510-680	470-630	20	-	27	-
S355J2H						27	-	-
S355K2H						40	-	-

Chimodzi mwa ubwino waukulu wogwiritsa ntchito chitoliro chachitsulo cholumikizidwa ndi arc cholumikizidwa ndi spiral submited arc pa mizere ya pansi pa nthaka ndi mphamvu yake yayikulu komanso kulimba kwake. Njira yolumikizira spiral imapanga chitoliro cholimba komanso chodalirika chomwe chingathe kupirira kupsinjika ndi kulemera kobisika pansi pa nthaka. Mphamvu imeneyi ndi yofunika kwambiri popewa kutuluka kwa madzi ndikuwonetsetsa kuti mapaipi amadzi azikhala olimba kwa nthawi yayitali.

Kuphatikiza apo, chitoliro chachitsulo cha SSAW chimalimbana ndi dzimbiri, zomwe zimapangitsa kuti chikhale chisankho chabwino kwambiri chogwiritsidwa ntchito pansi pa nthaka komwe mapaipi amakumana ndi chinyezi ndi zinthu zina zachilengedwe. Kukana dzimbiri kumeneku kumathandiza kutalikitsa moyo wa mapaipi anu ndikuchepetsa kufunikira kokonza ndi kukonza pafupipafupi.

Chitoliro cha Mzere wa Madzi Pansi pa Pansi

Ubwino wina wogwiritsa ntchito chitoliro chachitsulo cholumikizidwa ndi arc chozungulira pansi pa nthaka ndi kusinthasintha kwake komanso kusinthasintha kwake. Njira yolumikizira yozungulira imatha kupanga mapaipi amitundu yosiyanasiyana, zomwe zimapangitsa kuti ikhale yoyenera kugwiritsidwa ntchito m'mapaipi osiyanasiyana amadzi. Kuphatikiza apo, kusinthasintha kwa chitoliro chachitsulo cha SSAW kumapangitsa kuti chikhale chosavuta kuyika ndikugwiritsa ntchito, makamaka m'malo omwe ali ndi malo ovuta kapena zopinga.

Kapangidwe ka Mankhwala

Kalasi yachitsulo		Mtundu wa de-oxidation a	% ndi kulemera, kuchuluka kwakukulu
Dzina lachitsulo	Nambala yachitsulo	C	C	Si	Mn	P	S	Nb
S235JRH	1.0039	FF	0,17	—	1,40	0,040	0,040	0.009
S275J0H	1.0149	FF	0,20	—	1,50	0,035	0,035	0,009
S275J2H	1.0138	FF	0,20	—	1,50	0,030	0,030	—
S355J0H	1.0547	FF	0,22	0,55	1,60	0,035	0,035	0,009
S355J2H	1.0576	FF	0,22	0,55	1,60	0,030	0,030	—
S355K2H	1.0512	FF	0,22	0,55	1,60	0,030	0,030	—
a. Njira yochotsera poizoni m'thupi imatchulidwa motere: FF: Chitsulo chophwanyika bwino chokhala ndi zinthu zomangira nayitrogeni mu kuchuluka kokwanira kumangirira nayitrogeni yomwe ilipo (monga osachepera 0,020% ya Al yonse kapena 0,015% ya Al yosungunuka). b. Mtengo wapamwamba kwambiri wa nayitrogeni sugwira ntchito ngati mankhwala akuwonetsa kuchuluka kwa Al komwe kuli 0,020% ndi chiŵerengero chochepa cha Al/N cha 2:1, kapena ngati pali zinthu zina zokwanira zomangira N. Zinthu zomangira N ziyenera kulembedwa mu Chikalata Chowunikira.

Kuwonjezera pa mphamvu, kulimba, komanso kusinthasintha, chitoliro chachitsulo cholumikizidwa ndi arc chozungulira ndi chotsika mtengo poyerekeza ndi mitundu ina ya chitoliro. Njira yolumikizira yozungulira imachepetsa ndalama zopangira, zomwe zimapangitsa kuti ikhale njira yotsika mtengo kwambiri pamapulojekiti akuluakulu a mapaipi amadzi. Kulimba kwa nthawi yayitali komanso zosowa zochepa zosamalira chitoliro chachitsulo cha SSAW zimathandizanso kuti pakhale ndalama zosungira ndalama zonse pa nthawi yonse ya mzere wamadzi.

Ponseponse, pali zabwino zambiri zogwiritsa ntchito chitoliro chachitsulo cholumikizidwa ndi arc chozungulira pansi pa nthaka, kuphatikizapo mphamvu zambiri, kulimba, kukana dzimbiri, kusinthasintha, komanso kugwiritsa ntchito ndalama zochepa. Makhalidwe amenewa amapangitsa kuti chikhale chodalirika komanso chothandiza poyendetsa madzi pansi pa nthaka, kaya pa zomangamanga za boma, mafakitale, kapena zaulimi.

Mwachidule, pankhani yosankha chitoliro chabwino kwambiriza mitsinje yamadzi ya pansi pa nthakaChitoliro chachitsulo cholumikizidwa ndi spiral submarine arc ndicho chisankho chabwino kwambiri. Kapangidwe kake kolumikizidwa ndi spiral-welded kamapereka mphamvu, kulimba komanso kukana dzimbiri komwe kumafunika kuti chigwire ntchito kwa nthawi yayitali, pomwe kusinthasintha kwake komanso kugwiritsa ntchito ndalama moyenera kumapangitsa kuti chikhale chokongola pa ntchito za mapaipi amadzi amitundu yonse. Mukasankha chitoliro chachitsulo cholumikizidwa ndi spiral submarine arc, mutha kutsimikizira kudalirika ndi moyo wautali wa mizere yanu yamadzi yapansi panthaka, kukupatsani mtendere wamumtima komanso chidaliro mu dongosolo lanu lamadzi.

Yapitayi: Ubwino wa Chitoliro cha Gasi Chomwe Chili ndi Arc Welded Gas Line Choviikidwa M'madzi Kawiri

Ena: Kumvetsetsa Kufunika kwa Njira Zoyenera Zowotcherera Mapaipi Pa Chitoliro Chachitsulo Chozungulira Chomwe Chimagwiritsidwa Ntchito Pamizere Yamadzi Apansi Panthaka

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