L485 pombi simbi ye petroleum indasitiri

Tsanangudzo Pfupi

Kushandisa:pombi yekufambisa, pombi yeboiler, hydraulic/pombi yemotokari, kuchera mafuta/gasi, chikafu/chinwiwa/zvinogadzirwa nemukaka, indasitiri yemichina, indasitiri yemakemikari, migodhi, kushongedza kwechivako, kushandiswa kwakakosha.

Chikamu chimiro:round

Kwaakaberekerwa:Shandong, China

Ukobvu:15-610 mm

Chimiro:square.Rectangle.Denderedzwa

Kugadziridza masevhisi:welding, kubaya, kucheka, kukotama, kukoira

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L485 Pipeline Simbi, Inoreva rudzi rwesimbi ine zvakakosha zvinodiwa zvinoshandiswa kufambisa oiri, gasi rechisikigo uye mamwe mapaipi.Zvinoenderana neukobvu uye kunotevera kuumbwa uye zvimwe zvinhu, inogona kugadzirwa neinopisa inotenderedza mill, steckel mill kana plate mill, uye inoumbwa ne spiral welding kana UOE yakatwasuka seam welding yehombe dhayamita simbi pombi.

L485 Pipeline Simbi, Nhanganyaya kune Iyo

Kufambiswa kwepombi uye kutakura njanji, kufambiswa kwemigwagwa mikuru, kufambisa kwemumvura uye kutakurwa nendege zvakanyorwa senzira shanu dzekufambisa dzazvino.Kubva papombi yepakutanga yeindasitiri kusvika parizvino, kuvakwa kwepombi yemafuta negasi kwave nekukura kwemazana maviri emakore.Kugadzirwa uye kushandiswa kwesimbi yepombi kwakatanga kunonoka kuChina, uye pakanga pasina kugadzirwa kwesimbi yepombi chaiyo pamberi pe1985. Zvisinei, mumakore achangopfuura, kuvandudzwa, kugadzirwa uye kushandiswa kwesimbi yepombi muChina kwakakura nokukurumidza.Nekusimudzirwa kwemapurojekiti makuru epombi senge pombi yekumavirira, West-east gasi kufambisa pombi uye kumadokero-kumabvazuva kufambisa gasi pombi yechipiri-mutsara wepiri, kugadzirwa nekushandiswa kweX60, X70 uye X80 pombi yesimbi yakapedzwa zvakatevedzana, uye mhedzisiro yekutsvaga. yeX100 neX120 yawanikwa.

L485 Pipeline Simbi, Tissue Types

L485 Pipeline Simbi, Chimiro cheSangano ndicho hwaro hwekuona kuita kwayo uye basa rakachengeteka.Parizvino, simbi dzepombi dzinogona kukamurwa muzvikamu zvina zvinotevera zvichienderana neiyo microstructure:

1. Ferritic pearlite pipeline simbi
Iyo ferritic pearlite pombi simbi ndiyo yekutanga chimiro chepombi simbi yakagadzirwa makore ekuma1960 asati asvika.X52 uye simbi yepombi ine yakaderera simba giredhi zvese ferritic pearlite.Zvikamu zvaro zvekutanga kabhoni uye manganese, uye iyo kabhoni yemukati (chikamu chezhinji, chakafanana pazasi) i0.10% kusvika 0.20%, uye manganese emukati i1.30% kusvika 1.70%.Kazhinji shandisa inopisa rolling kana kupisa kurapwa maitiro kugadzira.Kana simba repamusoro richidikanwa, muganho wepamusoro wekabhoni wemukati unodiwa, kana kuteedzera niobium uye vanadium inowedzerwa kune manganese system.Ferritic pearlite pombi masimbi anowanzo onekwa seane polygonal ferrite ine saizi yezviyo ingangoita 7μm uye pearlite ine vhoriyamu chikamu chinosvika makumi matatu%.Yakajairika ferritic pearlite pombi simbi 5LB, X42, X52, X60, X60 uye X70.

2. Acicular ferrite pipeline simbi
Tsvagiridzo yeacicular ferritic pipeline simbi yakatanga mukupera kwema1960 uye yakaiswa mukugadzirwa kwemaindasitiri mukutanga kwema1970.Panguva iyoyo, manganese - niobium system yakavakirwa paE yakagadzira yakaderera kabhoni.Mune mn-Mo-Nb microalloy pombi simbi, kuwedzera kwe molybdenum kunogona kuderedza tembiricha yekushandura kuvharidzira polygonal ferrite kuumbwa, kukurudzira acicular ferrite shanduko, uye kunatsiridza kunaya kusimba kwekabhoni uye niobium nitride, kuitira kuti iwedzere simba resimbi. uye kuderedza kuoma uye brittle-shanduko tembiricha.Iyi molybdenum alloying tekinoroji yanga ichigadzirwa kwemakore anoda kusvika makumi mana.Mumakore achangopfuura, imwe tekinoroji yepamusoro tekinoroji yekuwana acicular ferrite iri kubuda.Inogona kuwana acicular ferrite pane yakanyanya kutenderera tembiricha nekushandisa yakakwirira niobium alloying tekinoroji.Common acicular ferrite pombi masimbi ari X70 uye X80.

3. Bainite - martensite pipeline simbi
Nekuvandudzwa kwekumanikidza kwakanyanya uye kuyerera kukuru kwegasi pombi yesimbi uye kutsvaga kudzikisa mutengo wekuvaka pombi, acicular ferrite chimiro hachigone kuzadzisa zvinodiwa.Mukupera kwezana ramakore rechi20, rudzi rwesimbi yepombi ine simba repamusoro-soro yakatanga.Magiredhi esimbi akajairika X100 uye X120.X100 yakatanga kutaurwa neSMI kuJapan muna 1988. Mushure memakore ekutsvakurudza nekuvandudzwa, pombi yeX100 yakatanga kuiswa muchikamu cheinjiniya chekuedza muna 2002. ExxonMobil yekuUnited States yakatanga tsvakurudzo yeX120 pipeline simbi muna 1993, uye 1996, yakabatana neSMI neNSC yeJapan kusimudzira pamwe chete maitiro ekutsvagisa eX120.Muna 2004, X120 simbi yakaiswa kekutanga muchikamu chekutyaira chepombi.

Mukugadzira dhizaini ye bainite-martensitic pombi simbi, musanganiswa wakakwana wekabhoni - manganese - mhangura - nickel - molybdenum - niobium - vanadium - titanium - boron yakasarudzwa.Dhizaini yeiyi alloy inoshandisa zvizere maitiro akakosha eboron muchikamu chekuchinja dynamics.Kuwedzerwa kwetrace boron (ωB = 0.0005% ~ 0.003%) kunogona kuvharidzira zviri pachena nucleation yeferrite pamuganhu wezviyo zve austenite uye kuita kuti ferrite curve iende kurudyi zviri pachena. bainite yekushandura curve inogadzikiswa nekudzikisa tembiricha yekutonhora yekupedzisira (& LT; 300 ℃) uye yakagadziridzwa kutonhora mwero (> 20 ℃/s), yakaderera bainite uye lath martensite chimiro chinogona kuwanikwa zvakare.Yakajairwa bainite-martensite (B -- M) mapaipi simbi ndeye X100 uye X120.

4. Hasha sophorite pipeline simbi
Nekuvandudzwa kwevanhu, simbi yepombi inodiwa kuti ive nesimba rakakwirira uye kuoma.Kana tekinoroji inodzorwa nekutonhodza tekinoroji isingakwanise kuita zvinodiwa zvakadaro, iyo yekupisa kurapwa maitiro ekuomarara kwekudzima uye kupisa inogona kugamuchirwa kuti isangane nezvinodiwa zvakakwana zvemadziro gobvu, kusimba kwepamusoro uye kusimba kwakakwana nekugadzira hasha sorbitite.Mune pombi simbi, iyi homogenous sortensite, inozivikanwawo sehomogenous martensite, inzira yesangano ye-ultra-high simba pombi yesimbi X120.

Kuumbwa Kwemakemikari

L245 Pipeline Simbi, Weight calculation formula :[(kunze kwedhayamita - kukora kwemadziro)* ukobvu hwemadziro]*0.02466=kg/m (huremu pamamita)

Kuumbwa kwekemikari (chikamu chehuwandu)…/%															kabhoni yakaenzana (CEV) %
C	Si	Mn	P	S	Nb	V	Ti	Cr	Ni	Cu	N	Mo	B	Als
zvishoma pane kana kuenzana															zvishoma pane kana kuenzana
Q345	A	0.2	0.5	1.7	0.035	0.035				0.3	0.5	0.2	0.012	0.1			0.45
	B				0.035	0.035
	C				0.03	0.03	0.07	0.15	0.2							0.015
	D	0.18			0.03	0.025
	E				0.025	0.02
Q390	A	0.2	0.5	1.7	0.035	0.035	0.07	0.2	0.2	0.3	0.5	0.2	0.015	0.1			0.46
	B				0.035	0.035
	C				0.03	0.03										0.015
	D				0.03	0.025
	E				0.025	0.02
Q420	A	0.2	0.5	1.7	0.035	0.035	0.07	0.2	0.2	0.3	0.8	0.2	0.015	0.2			0.48
	B				0.035	0.035										0.015
	C				0.03	0.03
	D				0.03	0.025
	E				25	0.02
Q450	C	0.2	0.6	1.8	0.03	0.03	0.11	0.2	0.2	0.3	0.8	0.2	0.015	0.2	0.005	0.015	0.53
	D				0.03	0.025
	E				0.025	0.02