L485 pipeline ígwè maka mmanụ ala ụlọ ọrụ

L485 pipeline ígwè maka ụlọ ọrụ mmanụ ụgbọala egosipụtara onyogho

Nkọwa dị mkpirikpi:

Ojiji:pipeline njem, ji esi mmiri ọkụ pipeline, hydraulic / ụgbọ ala pipeline, mmanụ / gas mkpọpu ala, nri / ihe ọṅụṅụ / mmiri ara ehi ngwaahịa, igwe ụlọ ọrụ, chemical ụlọ ọrụ, Ngwuputa, ụlọ mma, pụrụ iche ojiji.

Ụdị ngalaba:gburugburu

Ebe amụrụ:Shandong, China

Ọkpụrụkpụ:15-610 mm

Ụdị:square.Rektangulu.Gburugburu

Ọrụ nhazi:ịgbado ọkụ, ịkụ ọkpọ, ịcha, ịgbado, ịtọpụ ihe

Zitere anyị email

Nkọwa ngwaahịa

Mkpado ngwaahịa

L485 Pipeline Steel, Ọ na-ezo aka n'ụdị ígwè nwere ihe pụrụ iche a chọrọ maka ibufe mmanụ, ikuku gas na pipeline ndị ọzọ.Dị ka ọkpụrụkpụ na sochirinụ guzobe na akụkụ ndị ọzọ, ọ nwere ike na-emepụta site na-ekpo ọkụ Rolling igwe nri, steckel igwe nri ma ọ bụ efere igwe nri, na kpụrụ site gburugburu ịgbado ọkụ ma ọ bụ UOE ogologo onuete ịgbado ọkụ nke nnukwu dayameta ígwè ọkpọkọ.

L485 Pipeline Steel, Okwu Mmalite nke The

Edepụtara njem pipeline na njem ụgbọ oloko, njem okporo ụzọ, ụgbọ mmiri na njem ụgbọ elu dị ka ụdị njem njem ise ọgbara ọhụrụ.Site na pipeline ụlọ ọrụ izizi ruo ugbu a, nrụpụta mmanụ na gas enwetala mmepe ihe fọrọ nke nta ka ọ bụrụ narị afọ abụọ.Nmepụta na ntinye nke pipeline ígwè malitere n'oge na China, ọ dịghịkwa ezigbo pipeline ígwè mmepụta ihe tupu 1985. Otú ọ dị, n'ime afọ ndị na-adịbeghị anya, mmepe, mmepe na ntinye nke pipeline ígwè na China amalitela ngwa ngwa.Site n'ịkwalite nnukwu ọrụ pipeline dị ka pipeline ọdịda anyanwụ, ikuku gas na-ebufe gas na West-east gas na-ebufe pipeline nke abụọ, mmepụta na ntinye nke X60, X70 na X80 pipeline ígwè ka emechara nke ọma, na nsonaazụ nyocha. nke X100 na X120 enwetara.

L485 Pipeline Steel, Ụdị anụ ahụ

L485 Pipeline Steel, nhazi nhazi bụ ntọala maka ikpebi arụmọrụ ya na ọrụ nchekwa ya.Ka ọ dị ugbu a, enwere ike kewaa nchara pipeline gaa n'ụdị anọ ndị a dịka microstructure ha si dị:

1. Ferritic pearlite pipeline ígwè
The ferritic pearlite pipeline ígwè bụ isi ihe owuwu nke pipeline ígwè e mepụtara tupu 1960s.X52 na pipeline ígwè nwere obere ike ọkwa bụ niile ferritic pearlite.Ihe ndị bụ isi ya bụ carbon na manganese, na carbon ọdịnaya (oke ntakiri, otu n'okpuru) bụ 0.10% ka 0.20%, na manganese ọdịnaya bụ 1.30% ka 1.70%.Na-ejikarị emeputa usoro ọgwụgwọ na-ekpo ọkụ ma ọ bụ na-ekpo ọkụ.Mgbe achọrọ ike dị elu, oke oke nke ọdịnaya carbon na-achọsi ike, ma ọ bụ trace niobium na vanadium na-agbakwunye na usoro manganese.Ferritic pearlite pipeline steels a na-ewerekarị na ha nwere polygonal ferrite nwere nha ọka nke ihe dị ka 7μm na pearlite nwere obere olu nke ihe dịka 30%.Steel ferritic pearlite a na-ahụkarị bụ 5LB, X42, X52, X60, X60 na X70.

2. Acicular ferrite pipeline ígwè
Nnyocha nke acicular ferritic pipeline ígwè malitere na njedebe 1960s ma tinye ya na mmepụta mmepụta ihe na mmalite 1970s.N'oge ahụ, manganese-niobium usoro nke dabeere na E mepụtara obere carbon.Na mn-Mo-Nb microalloy pipeline steel, mgbakwunye nke molybdenum nwere ike ibelata okpomọkụ mgbanwe iji gbochie nhazi polygonal ferrite, kwalite mgbanwe acicular ferrite, ma melite mmetụta ike mmiri ozuzo nke carbon na niobium nitride, iji mee ka ike nke ígwè dịkwuo elu. ma belata ike siri ike na okpomọkụ mgbanwe mgbanwe.Teknụzụ alloy molybdenum a na-emepụta ihe fọrọ nke nta ka ọ bụrụ afọ 40.N'ime afọ ndị na-adịbeghị anya, nkà na ụzụ okpomọkụ dị elu ọzọ iji nweta acicular ferrite na-apụta.Ọ nwere ike nweta ferrite acicular na okpomọkụ na-atụgharị elu site na iji teknụzụ niobium alloy dị elu.Acicular ferrite pipeline steel bụ X70 na X80.

3. Bainite - martensite pipeline ígwè
Site na mmepe nke nrụgide dị elu na nnukwu ikuku gas gas pipeline ígwè na nchụso nke ibelata ọnụ ahịa owuwu nke pipeline, usoro acicular ferrite enweghị ike izute ihe ndị a chọrọ.N'ọgwụgwụ narị afọ nke 20, ụdị ígwè pipeline dị ike dị elu pụtara.Ụdị nchara a na-ahụkarị bụ X100 na X120.X100 bụ nke mbụ SMI kọrọ na Japan na 1988. Mgbe ọtụtụ afọ nyocha na mmepe gasịrị, a tọgbọrọ ọkpọkọ X100 na ngalaba nyocha injinia na 2002. ExxonMobil nke United States malitere nyocha na X120 pipeline steel na 1993, na na 1993. 1996, ya na SMI na NSC nke Japan jikọrọ aka iji kwalite usoro nyocha nke X120.Na 2004, X120 ígwè e tọrọ na nke mbụ na pilot ngalaba nke pipeline.

N'ime nhazi nke bainite-martensitic pipeline ígwè, a na-ahọrọ ngwakọta kacha mma nke carbon - manganese - ọla kọpa - nickel - molybdenum - niobium - vanadium - titanium - boron.Nhazi nke alloy a na-eji njirimara dị mkpa nke boron mee ihe n'ụzọ zuru ezu na mgbanwe mgbanwe oge.Mgbakwunye nke boron trace boron (ωB=0.0005% ~ 0.003%) nwere ike igbochi nucleation nke ferrite na oke ọka austenite ma mee ka ọkpụkpụ ferrite gbanwee gaa n'aka nri doro anya. Ọbụna na carbon ultra-low (ωC = 0.003%), na A na-agbaji usoro mgbanwe bainite site n'iwetu okpomọkụ dị jụụ ikpeazụ (& LT; 300 ℃) yana ọnụego jụrụ oyi (> 20 ℃ / s), enwere ike nweta usoro bainite ala na lath martensite.A na-ahụkarị bainite-martensite (B --M) steel pipeline bụ X100 na X120.

4. Igwe ọkụ sophorite pipeline ígwè
Site na mmepe nke ọha mmadụ, a chọrọ pipeline ígwè iji nwee ike dị elu na ike siri ike.Ọ bụrụ na teknụzụ a na-achịkwa na-agbagharị ma na-ajụ oyi enweghị ike izute ihe ndị dị otú ahụ, usoro ọgwụgwọ okpomọkụ nke nkwụsị na-ekpo ọkụ na-ekpo ọkụ na-ekpo ọkụ na-ekpo ọkụ nwere ike iji mezuo ihe ndị a chọrọ nke mgbidi siri ike, ike dị elu na ike zuru ezu site na ịmepụta sorbitite dị ọkụ.Na pipeline ígwè, nke a homogenous sortensite, makwaara dị ka homogenous martensite, bụ nhazi ụdị nke ultra-high ike pipeline ígwè X120.

Ngwakọta kemịkalụ

L245 Pipeline Steel, Usoro ngụkọ ibu: [(mpụta dayameta - ọkpụrụkpụ mgbidi) * ọkpụrụkpụ mgbidi] * 0.02466 = kg / m (arọ kwa mita)

Ngwakọta kemịkalụ (irighiri oke)…/%															ihe nhata carbon (CEV) %
C	Si	Mn	P	S	Nb	V	Ti	Cr	Ni	Cu	N	Mo	B	Als
erughị ma ọ bụ nhata															erughị ma ọ bụ nhata
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