Amandla wepayipi eline-welded kabili kwizicelo zezimboni

Amandla wepayipi elinezinwele eziphindwe kabili ezisetshenziswayo zezimboni ezivezwe isithombe

Incazelo emfushane:

Emhlabeni wamapayipi ezimboni, izindlela zokukhethwa kwezinto ezibonakalayo kanye nezindlela zokwakha zingaba nomthelela omkhulu ekusebenzeni okuphelele kanye nokuphila isikhathi eside kohlelo. Indlela eyodwa ethandwa ngamandla ayo nokuqina kwayo ukusebenzisa ipayipi elinamaphiko amabili. Lawa mapayipi aklanyelwe ukubekezelela izingcindezi eziphakeme, amazinga okushisa aphezulu kanye nezimo ezinokhahlo, ezenza zilungele izinhlelo ezahlukahlukene zezimboni.

Thumela i-imeyili kithi

Imininingwane Yomkhiqizo

Amathegi Omkhiqizo

Amapayipi aphindwe kabiliKwakhiwa ngama-welds amabili azimele ukwakha ukuxhumana okuqinile nokuthembekile phakathi kwezingxenye zamapayipi. Le nqubo ye-welding ephindwe kabili iqinisekisa ukuthi ipayipi lingamelana nezingcindezi nezinkinga ezingahle zihlangane ngesikhathi sokusebenza, okwenza kube ukukhetha okuthembekile kwezicelo ezibucayi lapho ukwehluleka akuyona inketho.

Enye yezinzuzo eziphambili zamapayipi anama-welded anekhono lokuphatha izindawo eziphakeme zengcindezelo. Inqubo ephindwe kabili ye-Welding idala ukuxhumana okungenamthungo kanye nokuqinile phakathi kwezingxenye zamapayipi, ukuqinisekisa ukuthi zingamelana nezingcindezi zangaphakathi ngaphandle kwengozi yokuvuza noma ukwehluleka. Lokhu kubenza balungele izinhlelo zokusebenza ezifana namafutha namaphethiloli amapayipi, lapho ubuqotho bohlelo lwepayipi bubaluleke kakhulu ekuphepheni nasekusebenzeni kahle.

Ithebula 2 Izakhiwo eziphambili zomzimba nezamakhemikhali zamapayipi ensimbi (GB / T3091-2008, GB / T9711-2011 ne-API Spec 5l)
-Vamile	Ibanga lensimbi	Amakhemikhali (%)						Impahla ethambile						I-charpy (v notch) umthelela wokuhlolwa
		c	Mn	p	s	Si	-Nye nje	Amandla Okuthela (MPA)		Amandla we-Tensile (MPA)		(L0 = 5.65 √ s0) min stture rate (%)
		umnciphikazi	umnciphikazi	umnciphikazi	umnciphikazi	umnciphikazi	-Nye nje	uku	umnciphikazi	uku	umnciphikazi	D ≤ 168.33mm	D> 168.3mm
I-GB / T3091 -2008	Q215a	≤ 0.15	0.25 <1.20	0.045	0.050	0.35	Ukungeza i-NBVTI ngokuya nge-GB / T1591-94	215		335		15	> 31 31
	Q215B	≤ 0.15	0.25-0.55	0.045	0.045	0.035		215		335		15	> 31 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		I-390		13	> 23
	Q295B	0.16	0.80-1.50	0.045	0.040	0.55		295		I-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
I-GB / T971112011 (PSL1)	I-L175	0.21	I-0.60	0.030	0.030		Ongakukhetha ngokungeza enye yezinto ze-NBVTI noma enye inhlanganisela yazo	175		I-310		27		Inkomba eyodwa noma ezimbili ze-Gloutyness Index of Ithonya Lamandla Nendawo Yokugunda Iyakhethwa. Ku-L555, bheka Izinga.
	L210	0.22	0.90	0.030	0.030			210		335		25
	L245	0.26	1.20	0.030	0.030			245		415		21
	I-L290	0.26	1.30	0.030	0.030			I-290		415		21
	L320	0.26	1.40	0.030	0.030			320		435		20
	I-L360	0.26	1.40	0.030	0.030			I-360		460		19
	L390	0.26	1.40	0.030	0.030			I-390		I-390		18
	L415	0.26	1.40	0.030	0.030			415		520		17
	L450	0.26	1.45	0.030	0.030			I-450		535		17
	L485	0.26	I-1.65	0.030	0.030			485		I-570		16
I-API 5L (PSL 1)	A25	0.21	I-0.60	0.030	0.030		Ngebanga lensimbi, nb + v ≤ 0.03%; ngensimbi ≥.03%;	172		I-310		(L0 = 50.8mm) ukubalwa ngokuya ngefomula elandelayo: E = 1944 · A0 .2 A0.0 A0 A0 .0 A: Indawo yesampula ku-MM2 U.		Akekho noma noma yimibili noma yomibili umthelela wendawo nendawo yokugunda edingekayo njengezikhombisi zobunzima.
	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			I-290		414
	I-X46	0.26	1.40	0.030	0.030			I-317		434
	X52	0.26	1.40	0.030	0.030			359		455
	I-X56	0.26	1.40	0.030	0.030			I-386		490
	X60	0.26	1.40	0.030	0.030			414		517
	I-X65	0.26	1.45	0.030	0.030			448		531
	I-X70	0.26	I-1.65	0.030	0.030			483		I-565

Ngaphezu kwamandla ayo, ipayipi elishawe kabili liyakwazi ukubekezelela amazinga okushisa aphezulu, okwenza lilungele izinqubo zezimboni ezahlukahlukene. Noma ngabe ukuthutha uketshezi olushisayo noma amagesi, noma usebenza ezindaweni zokushintshana okuguquguqukayo, ipayipi elinamathela kabili ligcina ubuqotho bayo kanye nokusebenza, buqinisekisa ukusebenza okuthembekile ngaphansi kwezimo eziyinselele kakhulu.

Ngokwengeziwe, ukuqina kwepayipi eline-welded ephindwe kabili kwenza kube ukukhetha okungabizi kakhulu kwezicelo zezimboni. Amandla abo okumelana nokugqokwa, ukugqwala nezinye izinhlobo zokonakaliswa kusho ukuthi zidinga ukulungiswa okuncane nokubuyiselwa esikhundleni, ukunciphisa izindleko zokusebenza kanye nesikhathi sokuphumula.

Sekukonke, ukusetshenziswa kwepayipi eline-welded ephindwe kabili kunikeza uhla lwezinzuzo zezicelo zezimboni, kufaka phakathi amandla, ukuqina kanye nokwethenjwa. Amandla abo okubhekana nezingcindezi eziphakeme, amazinga okushisa aphezulu kanye nezimo zemvelo ezinokhahlo zizenza zilungele izimboni eziningi ezivela kumafutha kanye negesi ekusebenzeni kwamakhemikhali. Ngokusebenza kwayo okufakazelwe kanye nerekhodi lempilo yenkonzo, ipayipi elisha kabili le-welded yimpahla ebalulekile kunoma yiluphi uhlelo lwezimboni.