GB/T 9948-2013 Grade 1Cr2Mo Petroleum Cracking Pipes Amapayipi Ensimbi Angenamthungo

Incazelo emfushane:

Ipayipi eliqhekeka i-petroleum iyipayipi lensimbi elingenalutho, elide, eliyindilinga elingenamthungo.Ukusetshenziswa kwepayipi lokuqhekeka kwe-petroleum: Isetshenziselwa ukuthutha uphethiloli, uphalafini, uwoyela wedizili neminye imikhiqizo kawoyela, engamelana nokugqwala nokuguga.Ipayipi lokuqhekeka kwe-petroleum (gb9948-83) iyipayipi lensimbi yezinga lokuqala elifanele ukubhoboza kwe-geological kanye nokumba izimboni.

Thumela i-imeyili kithi

Imininingwane Yomkhiqizo

Omaka bomkhiqizo

Isingeniso somkhiqizo

Okudayiswayo okusika ipayipi lokuqhekeka kwe-petroleum, ukucutshungulwa kwepayipi lokuqhekeka kwe-petroleum, ipayipi lokuqhekeka kwe-petroleum lisetshenziselwa ikakhulukazi ukukhiqiza ipayipi elinomfutho ophezulu kanye nangaphezulu komfutho we-steam boiler yensimbi yekhwalithi ephezulu yensimbi, i-alloy structural steel kanye nensimbi engagqwali ukumelana nokushisa okuphezulu kweshubhu engenamthungo, lezi amashubhu e-boiler asebenza ngaphansi kokushisa okuphezulu nokucindezela, ithubhu endimeni yokushisa okuphezulu kwegesi ye-flue kanye nomhwamuko wamanzi nayo izoba yi-oxidation kanye nokugqwala, ngakho-ke ipayipi lokuqhekeka kwe-petroleum liyadingeka ukuze libe namandla ahlala njalo babe namandla amakhulu okukhuthazela, ukumelana okuphezulu kwe-oxidation, nokuzinza okuhle kwenhlangano.

Ukuqina kwepayipi lokuqhekeka kwe-petroleum kunomthelela omkhulu ezintweni zemishini, kodwa akuzona zonke izingxenye zemishini okufanele ziqiniswe ngokuphelele.Isibonelo, ukugoba, izingxenye zeshafu ye-torsion stress, izingxenye zokwelashwa kokushisa okungaphezulu, njll., zidinga kuphela ukujula okuthile kongqimba oluqinile ukuze kuhlangatshezwane nezidingo zokusetshenziswa.Ukucisha kwepayipi lokuqhekeka kwe-petroleum kunqunywa ngokuyinhloko izinga lokupholisa elibucayi, elincane izinga lokupholisa elibalulekile, ngcono ukucimeka kwepayipi lokuqhekeka kwe-petroleum, futhi ngokuphambene nalokho, kunciphisa ukucimeka kwepayipi lokuqhekeka kwe-petroleum.Ngaphezu kwe-Co, izakhi eziningi ze-alloying zingathuthukisa kakhulu ukuqina kwensimbi.

Isingeniso Semakethe

Imakethe yamapayipi e-petroleum ekhuphuka phezulu naphansi, umdlalo omude futhi omfushane unamandla, imakethe ixubene ne-bearish, okubuye kwaholela ekukhuleni kwesimo sokulinda nokubona, isidingo semakethe samiswa.Njengosuku lokugcina lokuhweba ngaphambi kwezintengo zesikhathi esizayo zeholide zehle, futhi akukho ukuhweba kwesikhathi esizayo phakathi neholide, ngakho-ke, imakethe evulwe ngekusasa le-10 isenakho ukuqhubeka kokwehla okwenzekayo.Uma ikusasa liba phansi, ngaphandle kwezindaba ezinhle zokuthuthukisa amathuba emakethe yamapayipi aqhekeka uphethiloli ukulandela ukwehla ayakhuphuka, amanani entengo yamapayipi okuqhekeka kaphethiloli kulindeleke ukuthi asebenze buthaka.

Ukujiya kodonga lobubanzi bangaphandle

Ububanzi bangaphandle/mm	Ubukhulu bodonga/mm
	1	1.5	2	2.5	3	3.5	4	5	6
	Ikhwalithi yetiyori/(kg/m)
10	0.222	0.314	0.395
14	O.321	0.462	O.592	O.709
18			0.789	0.956
19			0.838	1.02
25			1.13	1.39	1.63
32				1.82	2.15	2.46	2.76
38					2.59	2.98	3.35
45					3.11	3.58	4.04	4.93
57							5.23	6.41	7.55
60							5.52	6.78	7.99

Isibonisi somkhiqizo

Izakhiwo zemishini

Okujwayelekile	Ibhrendi	Amandla okuqina (MPa)	Amandla okukhiqiza (MPa)	Ubude (%)	Amandla omthelela (J)	Ukuqina kwe-Brinell (HB)	Isimo Sokulethwa
GB9948	10	330-490	≥205	≥24	/	/	Umlilo omuhle
20	410-550	≥245	≥21	≥39	/	Umlilo omuhle
15CrMo	440-640	≥235	≥21	≥47	≤170	Normalizing kanye tempering
1Cr2Mo	≥390	≥175	≥22	≥92	≤179	Normalizing kanye tempering
1Cr5Mo	≥390	≥195	≥22	≥92	≤187	Anealing

Ukwakhiwa kwento esemqoka.

10#(st35),20#(st45),35#(st55),45#(st45),16Mn(st52), njll.

I-DIN2391-81 ukubekezelelana kobubanzi obujwayelekile ngu-0.08-0.10, ukubekezelela ububanzi bangaphakathi ngu-0.10-0.15, ukubekezelela ukushuba kodonga ngu-0.10-0.15.

Ukwakheka kwamakhemikhali

Okujwayelekile	Ibhrendi	Ukwakheka kwamakhemikhali (%)
C	Si	Mn	P	S	Cr	Mo	Ni
GB9948	10	0.07-0.14	0.17-0.37	0.35-0.65	≤0.035	≤0.035	≤0.15	/	≤0.25
20	0.17-0.24	0.17-0.37	0.35-0.65	≤0.035	≤0.035	≤0.25	/	≤0.25
15CrMo	0.12-0.18	0.17-0.37	0.40-0.70	≤0.035	≤0.035	0.80-1.10	0.40-0.55	≤0.30
1Cr2Mo	≤0.15	0.50-1.00	0.30-0.60	≤0.035	≤0.030	2.15-2.85	0.45-0.65	/
1Cr5Mo	≤0.15	≤0.50	≤0.60	≤0.035	≤0.030	4.00-6.00	0.45-0.60	≤0.60	Insimbi