Indololwane |

Indololwane

Incazelo emfushane:

Amagama angukhiye (uhlobo lwepayipi):45 Degree,90 Degree,180 Degree Elbow,Long Radius,Short Radius Elbow

Usayizi:I-NPS: 1/2''~24''(Okungenamthungo), 24''~72''(Welded);DN: 15~1200, WT: 2~80mm, SCH 5~XXS

Irediyasi yokugoba:R=1D~10D, R=15D, R=20D

Okubalulekile nokujwayelekile:I-Carbon Steel --- ASME B16.9, ASTM A234 WPB Stainless Steel --- ASTM A403 304/304L/310/310S/316/316L/317L/321 ; Ingxubevange Yensimbi --- ASTM A234 WP1/5/9 /12/22/91

Iyaphela :I-Square Ends/Plain Ends (ukusikwa ngokuqondile, ukusika kwesaha, ukusika kwethoshi), Okunamaphethelo Okubhebhedliwe/Anemicu

Ukulethwa:Zingakapheli izinsuku ezingama-30 futhi Kuncike enanini le-oda lakho

Inkokhelo:TT, LC , OA , D/P

Ukupakisha:Ipakishwe eWood Cabins/Wood Tray

Ukusetshenziswa:Ezokuthutha igesi, amanzi namafutha kungaba ezimbonini zikawoyela noma zegesi yemvelo

Thumela i-imeyili kithi Landa njenge-PDF

Incazelo

Ukucaciswa

Okujwayelekile

Ukupenda & Coating

Ukupakisha & Iyalayisha

Inqubo Yokukhiqiza Indololwane Engenamthungo (Ukugoba Ukushisa Nokugoba Okubandayo)

Enye yezindlela ezivame kakhulu zokukhiqiza izindololwane isebenzisa ukugoba kwe-mandrel eshisayo kusuka kumapayipi ensimbi aqondile.Ngemuva kokushisa ipayipi yensimbi ekushiseni okuphakeme, ipayipi iqhutshwa, yandiswa, igobe ngamathuluzi angaphakathi we-mandrel isinyathelo ngesinyathelo.Ukusebenzisa ukugoba kwe-mandrel eshisayo kungenza usayizi obanzi wendololwane engenamthungo.Izici ze-mandrel ukugoba zincike kakhulu ekubunjweni okuhlanganisiwe nobukhulu be-mandrel.Izinzuzo zokusebenzisa izindololwane ezigobile ezishisayo zifaka ukuchezuka kogqinsi oluncane kanye nerediyasi yokugoba enamandla kunolunye uhlobo lwendlela yokugoba.Khonamanjalo, ukusebenzisa ukugoba esikhundleni sokugoba okwakhelwe ngaphambili kunciphisa kakhulu inani lamashisela adingekayo.Lokhu kunciphisa inani lomsebenzi odingekayo futhi kwandisa ikhwalithi nokusebenziseka kwamapayipi.Nokho, ukugoba okubandayo kuyinqubo yokugoba ipayipi lensimbi eliqondile emazingeni okushisa avamile emshinini ogobayo.Ukugoba okubandayo kulungele amapayipi anobubanzi obungaphandle obusuka ku-17.0 kuye ku-219.1 mm, nogqinsi olusuka ku-2.0 kuya ku-28.0 mm.Irediyasi yokugoba enconyiwe ingu-2.5 x Do.Ngokuvamile endaweni egobayo engu-40D.Ngokusebenzisa ukugoba okubandayo, singathola izindololwane ezincane zerediyasi, kodwa sidinga ukupakisha izinto zangaphakathi ngesihlabathi ukuze sigweme ukushwabana.Ukugoba okubandayo kuyindlela yokugoba esheshayo nengabizi.Kuyinketho yokuncintisana yokwenza amapayipi nezingxenye zomshini.

Inqubo Yokukhiqiza Indololwane Eshiselwe (Encane & Enkulu)

Izindololwane ezishiselwe zenziwe ngamapuleti ensimbi, ngakho-ke akuzona izindololwane zensimbi ezingenamthungo.Sebenzisa isikhunta bese ucindezela i-steel plate ukuze ifane nendololwane, bese ushisela umthungo ukuze ube indololwane yensimbi yokuqeda.Yindlela endala yokukhiqiza izindololwane.Eminyakeni yamuva izindololwane ezincane zicishe zenziwe ngamapayipi ensimbi manje.Ezindololwaneni zikasayizi omkhulu, isibonelo, kunzima kakhulu ukukhiqiza izindololwane ezingaphezu kuka-36” OD ngamapayipi ensimbi .Ngakho-ke kuvame ukwakhiwa ngamapuleti ensimbi, ukucindezela ipuleti libe uhafu wendololwane, bese kushiselwa amahhafu amabili ndawonye.Njengoba izindololwane zishiselwe emzimbeni wayo , ukuhlolwa kwejoyinti le-welding kuyadingeka.Ngokuvamile sisebenzisa ukuhlolwa kwe-X-Ray njenge-NDT.

Okwedlule: Ishubhu

Olandelayo: I-Flange

Usayizi wepayipi lokuzisholo		Ngaphandle Ububanzi e-Bevel		Maphakathi kuya ekugcineni			Maphakathi nendawo		Buyela Ebusweni
				45° Izindololwane	90° Izindololwane		180°Buyela
				H	F		P		K
DN	INCH	Uchungechunge A	Uchungechunge B	LR	LR	SR	LR	SR	LR	SR
15	1/2	21.3	18	16	38	-	76	-	48	-
20	3/4	26.9	25	16	38	-	76	-	51	-
25	1	33.7	32	16	38	25	76	51	56	41
32	11/4	42.4	38	20	48	32	95	64	70	52
40	11/2	48.3	45	24	57	38	114	76	83	62
50	2	60.3	57	32	76	51	152	102	106	81
65	21/2	76.1(73)	76	40	95	64	191	127	132	100
80	3	88.9	89	47	114	76	229	152	159	121
90	31/2	101.6	-	55	133	89	267	178	184	140
100	4	114.3	108	63	152	102	305	203	210	159
125	5	139.7	133	79	190	127	381	254	262	197
150	6	168.3	159	95	229	152	457	305	313	237
200	8	219.1	219	126	305	203	610	406	414	313
250	10	273.0	273	158	381	254	762	508	518	391
300	12	323.9	325	189	457	305	914	610	619	467
350	14	355.6	377	221	533	356	1067	711	711	533
400	16	406.4	426	253	610	406	1219	813	813	610
450	18	457.2	478	284	686	457	1372	914	914	686
500	20	508.0	529	316	762	508	1524	1016	1016	762
550	22	559	-	347	838	559	Qaphela: 1. Ungazisebenzisi izibalo ezikubakaki ngokusemandleni akho 2. Sicela uqale ukhethe uchungechunge oluthi A.
600	24	610	630	379	914	610
650	26	660	-	410	991	660
700	28	711	720	442	1067	711
750	30	762	-	473	1143	762
800	32	813	820	505	1219	813
850	34	864	-	537	1295	864
900	36	914	920	568	1372	914
950	38	965	-	600	1448	965
1000	40	1016	1020	631	1524	1016
1050	42	1067	-	663	1600	1067
1100	44	1118	1120	694	1676	1118
1150	46	1168	-	726	1753	1168
1200	48	1220	1220	758	1829	1219

I-ASTM A234

Lokhu kucaciswa kuhlanganisa ukufakwa kwensimbi eyenziwe nge-carbon steel & alloy steel yokwakhiwa okungenamthungo nokushiselwe.Ngaphandle uma kucaciswe ukwakhiwa okungenamthungo noma okushiselwe ngokulandelana, kungase kuhlinzekwe ngokukhetha komhlinzeki.Zonke izinsimbi zokwakha ezishiselwe ngokwaleli zinga zihlinzekwa nge-radiography engu-100%.Ngaphansi kwe-ASTM A234, amamaki ambalwa ayatholakala kuye ngokwakheka kwamakhemikhali.Ukukhethwa kuzoncika ezintweni zamapayipi ezixhunywe kulokhu kufakwa.

Izidingo ze-Tensile	I-WPB	I-WPC, WP11CL2	I-WP11CL1	I-WP11CL3
Amandla Okuqina, min, ksi[MPa]	60-85	70-95	60-85	75-100
(0.2% offset noma 0.5% extension-under-load)	[415-585]	[485-655]	[415-585]	[520-690]
Isivuno Amandla, min, ksi[MPa]	32	40	30	45
Isivuno Amandla, min, ksi[MPa]	[240]	[275]	[205]	[310]

Amanye amabanga atholakala ngaphansi kwalokhu kucaciswa kanye nokucaciswa kwempahla yamapayipi axhunyiwe ahlelwe ngezansi:

I-ASTM A403

Lokhu kucaciswa kuhlanganisa amakilasi amabili ajwayelekile, i-WP ne-CR, yokufakwa kwensimbi engagqwali eyenziwe nge-austenitic yokwakhiwa okungenamthungo nokushiselwe.
Ukufakwa kwe-WP Yekilasi kukhiqizwa ngokwezidingo ze-ASME B16.9 & ASME B16.28 futhi kuhlukaniswe ngezigaba ezintathu kanje:

I-WP - Kwenziwe ngomkhiqizo ongenamthungo ngendlela yokukhiqiza engenamthungo.
I-WP - W Lokhu kufakwa kuqukethe ama-welds kanye nawo wonke ama-welds enziwe ngumkhiqizi ofanelekayo okuhlanganisa ukuqala kwepayipi uma ipayipi ihlanganiswe nokwengezwa kwezinto zokugcwalisa i-radiographed.Kodwa-ke, ayikho i-radiography eyenzelwe ukushiselwa kwepayipi lokuqala uma ipayipi lishiselwe ngaphandle kokwengezwa kwezinto zokugcwalisa.
I-WP-WX Lezi zifakelo ziqukethe izinto ezishiselelwayo futhi zonke izinto ezishiselwayo noma ngabe zenziwe ngumkhiqizi ofanelekayo noma umkhiqizi wezinto eziqalayo zenziwe nge-radiograph.

Ukufakwa kwe-CR kwekilasi kukhiqizwa ngokwezidingo ze-MSS-SP-43 futhi akudingi ukuhlolwa okungonakali.

Ngaphansi kwe-ASTM A403 amabanga ambalwa ayatholakala kuye ngokwakheka kwamakhemikhali.Ukukhethwa kuzoncika ezintweni zamapayipi ezixhunywe kulokhu kufakwa.Amanye amabanga atholakala ngaphansi kwalokhu kucaciswa kanye nokucaciswa kwempahla yamapayipi axhunyiwe ahlelwe ngezansi:

I-ASTM A420

Lokhu kucaciswa kuhlanganisa insimbi eyenziwe nge-carbon steel ne-alloy steel yokwakhiwa okungenamthungo nokushiselwe okuhloselwe ukusetshenziswa emazingeni okushisa aphansi.Ihlanganisa amabanga amane i-WPL6, WPL9, WPL3 & WPL8 kuye ngokwakheka kwamakhemikhali.Ukufakwa kwe-WPL6 kunomthelela ovivinyweni lokushisa - 50° C, WPL9 ku -75° C, WPL3 ku -100° C kanye ne-WPL8 ku -195° C.

Izilinganiso zokucindezela ezivumelekile zokufakwa zingase zibalwe njengamapayipi angenamthungo aqondile ngokuvumelana nemithetho esungulwe esigabeni esisebenzayo se-ASME B31.3.

Ubukhulu bodonga lwamapayipi kanye nohlobo lwempahla kuzoba yilokho okufakwayo okuyalelwe ukuthi kusetshenziswe ngakho, ubunikazi bawo ezintweni ezifakelwe esikhundleni sezimpawu zokulinganisa ingcindezi.

Insimbi No.	Uhlobo	Ukwakheka kwamakhemikhali
Insimbi No.	Uhlobo	C	Si	S	P	Mn	Cr	Ni	Mo	Okunye	ób	ós	δ5	HB
I-WPL6	0.3	0.15-0.3	0.04	0.035	0.6-1.35	0.3	0.4	0.12	Cb:0.02;V:0.08	415-585	240	22
I-WPL9	0.2		0.03	0.03	0.4-1.06		1.6-2.24			435-610	315	20
I-WPL3	0.2	0.13-0.37	0.05	0.05	0.31-0.64		3.2-3.8			450-620	240	22
I-WPL8	0.13	0.13-0.37	0.03	0.03	0.9		8.4-9.6			690-865	515	16