Ubwino wa Mapaipi Achitsulo a A252 Giredi 3 Ogwiritsidwa Ntchito Pomanga Mapaipi a Madzi Otayira ndi Mafuta

Kufotokozera Kwachidule:

Chitoliro chachitsulo cha A252 Giredi 3, chomwe chimadziwikanso kutichitoliro chozungulira chozungulira, ndi chisankho chodziwika bwino popanga mapaipi a zimbudzi ndi mafuta. Mapaipi awa adapangidwa kuti azitha kupirira nyengo zovuta kwambiri ndipo amapereka zabwino zambiri pakugwiritsa ntchito izi.

Tumizani imelo kwa ife

Tsatanetsatane wa Zamalonda

Ma tag a Zamalonda

Chimodzi mwa zabwino zazikulu zaChitoliro chachitsulo cha A252 Giredi 3 ndi mphamvu zake zapadera komanso kulimba kwake. Mapaipi awa amapangidwa ndi chitsulo chapamwamba kwambiri ndipo amalimbana kwambiri ndi dzimbiri, kuwonongeka ndi kugundana. Izi zimapangitsa kuti akhale abwino kwambiri kugwiritsidwa ntchito m'mapaipi a zimbudzi komwe angakumane ndi zinthu zowononga komanso katundu wolemera. Kuphatikiza apo, mphamvu zawo komanso kulimba kwawo zimapangitsa kuti akhale oyenera kugwiritsidwa ntchito popanga mapaipi amafuta, chifukwa ayenera kupirira kupsinjika kwakukulu komanso kusintha kwa chilengedwe.

Muyezo	Kalasi yachitsulo	Zinthu Zamankhwala (%)						Katundu Wolimba						Charpy(V notch) Mayeso a Zotsatira
		c	Mn	p	s	Si	Zina	Mphamvu Yopereka(Mpa)		Kulimba kwamakokedwe(Mpa)		（L0=5.65 √ S0）Mphindi Yotambasula （%）
		kuchuluka	kuchuluka	kuchuluka	kuchuluka	kuchuluka	Zina	mphindi	kuchuluka	mphindi	kuchuluka	D ≤ 168.33mm	D ＞ 168.3mm
GB/T3091 -2008	Q215A	≤ 0.15	0.25 ＜ 1.20	0.045	0.050	0.35	Kuwonjezera NbVTi mogwirizana ndi GB/T1591-94	215		335		15	> 31
	Q215B	≤ 0.15	0.25-0.55	0.045	0.045	0.035		215		335		15	> 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/ T9711- 2011 (PSL1)	L175	0.21	0.60	0.030	0.030		Ngati mukufuna kuwonjezera chimodzi mwa zinthu za NbVTi kapena kuphatikiza kulikonse kwa izo	175		310		27		Chimodzi kapena ziwiri mwa zizindikiro za kulimba kwa mphamvu yokhudza mphamvu ndi malo odulira ubweya angasankhidwe. 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		Za chitsulo cha kalasi B, Nb+V ≤ 0.03%; zachitsulo ≥ kalasi B, kuwonjezera Nb kapena V kapena zawo kuphatikiza, ndi Nb+V+Ti ≤ 0.15%	172		310		(L0 = 50.8mm) kukhala kuwerengedwa motsatira fomula iyi: e=1944·A0 .2/U0 .0 A: Malo a chitsanzo mu mm2 U: Mphamvu yochepa yokhazikika mu Mpa		Palibe kapena chilichonse kapena zonse ziwiri zotsatira zake mphamvu ndi kumeta ubweya dera likufunika ngati muyezo wa kulimba.
	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

Ubwino wina wa chitoliro chachitsulo cha A252 Giredi 3 ndichakuti chimagwiritsidwa ntchito mosiyanasiyana. Mapaipi awa amapezeka m'makulidwe ndi makulidwe osiyanasiyana, zomwe zimapangitsa kuti akhale oyenera kugwiritsidwa ntchito m'njira zosiyanasiyana. Kaya kumanga chitoliro chaching'onochingwe cha madzi otayirakapena chitoliro chachikulu cha mafuta, chitoliro chachitsulo cha A252 Giredi 3 chikhoza kusinthidwa mosavuta kuti chikwaniritse zofunikira zinazake za polojekiti. Kuphatikiza apo, mapaipi awa akhoza kupangidwa kukhalamapaipi omangidwa m'malo opanda kanthu, kukulitsa kugwiritsa ntchito kwawo pa ntchito zomanga.

Kuwonjezera pa mphamvu zake komanso kusinthasintha kwake, chitoliro chachitsulo cha A252 Giredi 3 chimadziwikanso ndi kutsika mtengo kwake. Mapaipi awa ndi osavuta kuyika ndipo amafunika kukonza pang'ono, zomwe zimachepetsa ndalama zomwe zimagwiritsidwa ntchito pa ntchito yonse. Kuphatikiza apo, nthawi yayitali yogwirira ntchito komanso kukana dzimbiri kumatsimikizira kuti amapereka phindu lalikulu pa ndalama zomwe zayikidwa pa ntchito zoyendera zinyalala ndi zimbudzi.chitoliro cha mafuta mzeremapulojekiti omanga.

Ubwino wina waukulu wa chitoliro chachitsulo cha A252 Giredi 3 ndikugwirizana kwake ndi njira zosiyanasiyana zomangira. Mapaipi awa amatha kuyikidwa pogwiritsa ntchito njira zachikhalidwe zokumba kapena njira zopanda ngalande monga kuboola molunjika, kuyika mapaipi kapena kuyika ma tunnel ang'onoang'ono. Kusinthasintha kumeneku kumalola kuyika kogwira mtima komanso kotsika mtengo m'malo osiyanasiyana ovuta, kuphatikizapo madera akumatauni, m'mitsinje ndi m'madera omwe amakhudzidwa ndi chilengedwe.

Ponseponse, chitoliro chachitsulo cha A252 Giredi 3 chimapereka zabwino zosiyanasiyana pakupanga mapaipi a zimbudzi ndi mafuta. Mphamvu zawo, kulimba, kusinthasintha komanso kugwiritsa ntchito bwino ndalama zimapangitsa kuti zikhale zoyenera kugwiritsa ntchito pamavuto awa. Kaya zimagwiritsidwa ntchito popanga mapaipi a zimbudzi kapena mafuta, mapaipi awa amapereka magwiridwe antchito odalirika komanso ofunika kwa nthawi yayitali. Zotsatira zake, amakhalabe yankho losankhidwa ndi mainjiniya ndi makontrakitala omwe akufunafuna mayankho olimba komanso odalirika a mapaipi.

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