Spiru caam chitoliro cha madzi pansi pamapaipi

Spiru caam chitoliro cha pansi pa mapaipi apansi panthaka

Kufotokozera kwaifupi:

Kudziwitsa Athuchitoliro cha spiru pa mapaipi apansi pansi. Zojambulajambula zatsopanozi ndi chitoliro chowoneka bwino, chojambulidwa bwino pogwiritsa ntchito ukadaulo wapamwamba kwambiri pamsika.

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Matamba a malonda

AChitoliro cham'madzi pansindi chitoliro cha staff chopangidwa ndi waya-utoto-utali wowuma utali wowuma. Chitolirochi chimapangidwa kuchokera ku ma strip chitsulo chachitsulo ndipo chimakhala kutentha nthawi zonse kuti chitsimikizike ndi kukhala ndi moyo wautali.

Mapaipi Aakulu ndi Mapaketi A Pipes (GB / T3091-2008, GB / T971111011 ndi API SCEE 5L)
Wofanana	Kalasi yachitsulo	Mankhwala Opanga (%)						Katundu wamtundu						Charpy (v notch) mayeso
		c	Mn	p	s	Si	Ena	Mphamvu (MPA)		Mphamvu ya kukhala (MPA)		(L0 = 5.65 √ s0) min thumba (%)
		max	max	max	max	max	Ena	min	max	min	max	D ≤ 168.333mm	D> 168.3mm
GB / T3091 -2008	Q215A	≤ 0.15	0.25 <1.20	0.045	0.050	0.35	Kuonjezera NB \ v \ ti \ ti \ ti mogwirizana ndi gb / t1591-94	215		335		15	3. 31
	Q215B	≤ 0.15	0.25-0.55	0.045	0.045	0.035		215		335		15	3. 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		390		13	> 23
	Q295B	0.16	0.80-1.50	0.045	0.040	0,55		295		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
GB / T971111111 (PSL1)	L175	0.21	0,60	0.030	0.030		Zowonjezera zowonjezera chimodzi za NB \ v \ ti \ timitundu kapena mitundu iliyonse ya iwo	175		310		27		Mmodzi kapena awiri mwa njira yovuta yovuta mphamvu ndi yonyamula mphamvu ikhoza kusankhidwa. Chifukwa l555, onani muyezo.
	L210	0.22	0.90	0.030	0.030			210		335		25
	L245	0.26	1.20	0.030	0.030			245		415		21
	L290	0.26	1.30	0.030	0.030			290		415		21
	L320	0.26	1.40	0.030	0.030			320		435		20
	L360	0.26	1.40	0.030	0.030			360		460		19
	L390	0.26	1.40	0.030	0.030			390		390		18
	L415	0.26	1.40	0.030	0.030			415		520		17
	L450	0.26	1.45	0.030	0.030			450		535		17
	L485	0.26	1.65	0.030	0.030			485		570		16
API 5l (PSL 1)	A25	0.21	0,60	0.030	0.030		Kwa grade b steel, nb + v ≤ 0.03%; powonjezera "	172		310		(L0 = 50.8mm) kuti awerenge malinga ndi njira zotsatirazi: e = 1944 · a0 .2 / u0.		Palibe kapena kapena zonse ziwiri mphamvu komanso dera lokongola limafunikira ngati chitsimikizo cholimba.
	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			290		414
	X46	0.26	1.40	0.030	0.030			317		434
	X52	0.26	1.40	0.030	0.030			359		455
	X56	0.26	1.40	0.030	0.030			386		490
	X60	0.26	1.40	0.030	0.030			414		517
	X65	0.26	1.45	0.030	0.030			448		531
	X70	0.26	1.65	0.030	0.030			483		565

Kumanga kwa chitoliro cha chitoliro kumatsimikizira kuti ndi champhamvu kwambiri komanso kukana kukakamizidwa, kumapangitsa kuti ikhale yabwino kwambiri pamadzi obisika.

Kuphatikiza pa mphamvu ndi kukhazikika, mapaipi am'madzi pansi panthaka amapangidwira kuti asunge. Zomangamanga zam'madzi zimasinthasintha ndikusintha, kulola kuti pakhale malire osavuta komanso omwe amakhalanso ovuta kwambiri. Izi zikutanthauza kuti mutha kuyimitsa mapaipi mwachangu komanso mokwanira, nthawi yopulumutsa ndi ndalama.

Kuphatikiza apo, kugwiritsa ntchito zida zapamwamba komanso ukadaulo wapamwamba kwambiri kumatsimikizira kuti mapaipi amadzi obisika amagonjetsedwa kwambiri ndi dzimbiri. Izi zikutanthauza kuti isunga umphumphu wake komanso kugwira ntchito kwa zaka zambiri, ngakhale m'malo ovuta.

Mapaipi apansi pansi panthaka akupezeka mu mitundu yosiyanasiyana kuti akwaniritse zosowa zanu za polojekiti yanu. Kaya mukugona madzi ochepa kapena dongosolo lalikulu la mafakitale, tili ndi chitoliro chabwino cha inu. Gulu lathu limathanso kupereka malangizo ogwirizana ndi thandizo lokuthandizani kusankha mapaipi omwe ali ndi zofunika kwambiri.

Ponena za m'madzi apansi panthaka, mumafunikira chitoliro chomwe mungadalire. Ndi zomanga zapamwamba za stuval zophatikizira, zida zapamwamba ndi zomwe zimawotcha, mapaipi athu pansi apansi ndi abwino pa intaneti iliyonse. Chokhazikika, chodalirika komanso chosavuta kukhazikitsa, chitolirochi chimayesedwa kwa nthawi, ndikukupatsani mtendere wamalingaliro komanso kwambiri.

Zonsezi, ziphuphu zazitali ndizabwino kwambiri kwa aliyense amene amafunikira njira yodalirika komanso yodalirika, komanso yokwanira. Ndi msipu wake wapamwamba kwambiri womanga ndi akatswirichitoliro chachitsulo chikuwala, chitoliro chimapereka mphamvu chosayerekezeka, kusinthasintha ndi kukana kuwonongeka. Osanyengerera mtundu wa dongosolo lanu lamadzi - sankhani mapaipi ammadzi ngati yankho lomwe mungadalire.

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