20 #Q355B thiab lwm yam khoom siv chiv high-pressure seamless yeeb nkab Featured duab

20 #Q355B thiab lwm yam khoom siv chiv muaj siab seamless yeeb nkab

Lus piav qhia luv luv:

Fertilizer tshwj xeeb yeeb nkab GB6479-2000 hais txog seamless steel yeeb nkab rau cov khoom siv chiv siab.Nws yog tsuas yog siv rau conveying kub thiab siab siab kua pipelines ntawm cov khoom siv chiv.Cov ntaub ntawv sawv cev yog 20, 16Mn, 12CrMo, 12Cr2Mo, thiab lwm yam.

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Khoom cim npe

Khoom taw qhia

Cov kav hlau rau cov tshuaj chiv yog siv los tsim cov khoom zoo carbon steel, alloy structural steel thiab stainless kub-resistant steel high-pressure seamless steel rau chav boiler kav nrog siab siab thiab siab tshaj cov hlab thiab cov boiler hlab ua hauj lwm nyob rau hauv kub kub. thiab siab siab, thiab cov hlab yuav oxidized thiab corroded nyob rau hauv qhov kev txiav txim ntawm high-temperature flue gas thiab chav.Yog li ntawd, cov raj steel yuav tsum muaj lub zog ntev, siab oxidation tsis kam, thiab kev ruaj ntseg zoo.Cov qib steel siv yog: high-zoo carbon structural steel qib yog 20G, 20MnG, 25MnG;Alloy structural steel qib 15MoG, 20MoG, 12CrMoG, 15CrMoG, 12Cr2MoG, 12CrMoVG, 12Cr3MoVSiTiB, thiab lwm yam;1Cr18Ni9 thiab 1Cr18Ni11Nb high-pressure boiler hlab ua los ntawm rusty thiab kub-resistant steel yuav tsum raug rau hydrostatic test, flaring thiab flattening xeem ib tug los ntawm ib tug ntxiv rau kom ntseeg tau cov tshuaj muaj pes tsawg leeg thiab txhua yam khoom.Cov hlau tshwj xeeb rau cov tshuaj chiv yuav tsum tau muab xa mus rau hauv lub xeev kev kho cua sov.

Siv tau ib puag ncig

Cov yeeb nkab tshwj xeeb rau cov chiv (GB6479-2000) yog cov khoom siv zoo carbon steel thiab alloy steel seamless steel yeeb nkab haum rau cov khoom siv tshuaj thiab cov kav dej nrog kev ua haujlwm kub ntawm - 40 ~ 400 ℃ thiab ua haujlwm siab ntawm 10 ~ 30Ma.

Kev kub siab alloy yeeb nkab rau cov khoom siv chiv (GB6479-2000) yog cov khoom siv zoo carbon steel thiab alloy steel seamless steel yeeb nkab haum rau cov khoom siv tshuaj thiab cov kav dej nrog kev ua haujlwm kub ntawm - 40 ~ 400 ℃ thiab ua haujlwm siab ntawm 10 ~ 30Ma.

Kev taw qhia txog kev tsim khoom

(1) Manufacturing method:

①Qhov kub ntawm cov kav hlau siv rau cov chiv yog qis dua 450 ℃, thiab cov kav dej hauv tsev feem ntau yog ua los ntawm cov kav dej kub los yog txias 10 # thiab 20 # carbon bonded steel kav.

② Cov yeeb nkab tshwj xeeb rau cov chiv feem ntau siv nyob rau hauv qhov kub thiab txias, thiab cov yeeb nkab yuav raug oxidized thiab corroded nyob rau hauv qhov kev txiav txim ntawm high-temperature flue gas thiab dej vapor.Cov yeeb nkab steel yuav tsum muaj lub zog ruaj khov, siab oxidation thiab corrosion kuj, thiab kev ruaj ntseg zoo.

(2) Lub Hom Phiaj:

①Steel kav dej rau tshuaj chiv yog siv los tsim cov kav dej phab ntsa, cov kav dej kub npau npau, cov kav dej superheated, cov kav dej superheated rau cov kav dej kub, cov kav dej loj thiab me thiab cov kav dej cib.

② Cov yeeb nkab steel tshwj xeeb yog siv rau cov chiv yog siv los tsim cov yeeb nkab superheater, reheater yeeb nkab, cua duct, lub ntsiab chav yeeb nkab, thiab lwm yam ntawm high-pressure thiab ultra-siab boiler.

Khoom Qhia

Txheej txheem ntws ntawm cov iav tsom iav raj:

Tube dawb paug - tshuaj xyuas - peeling - tshuaj xyuas - cua sov - tho - pickling - sib tsoo - lubrication thiab cua kom qhuav - vuam taub hau - txias kos duab - kev kho mob - pickling - pickling thiab passivation - - Kev tshuaj xyuas - txias dov - degreasing - txiav lub taub hau - cua ziab - sab hauv polishing - sab nrauv polishing - tshuaj xyuas - txheeb xyuas - ntim khoom tiav

Industrial yeeb nkab txheej txheem ntws

Tube tsis muaj - tshuaj xyuas - tev - tshuaj xyuas - cua sov - tho - pickling - nceb kho - lubrication thiab cua kom qhuav - vuam taub hau - txias kos duab - kev kho mob - pickling - pickling thiab passivation -- soj ntsuam

Tshuaj muaj pes tsawg leeg ntawm chiv tubes

Hom	Tshuaj muaj pes tsawg leeg (mass feem) (%)
	C	Si	Mn	-	-	Cr	Mo
10	0.07-0.14 Nws	0.17-0.37 Nws	0.35 ~ 0.65 hli	0.040 ib	0.035 ib	-	-
20g ua	0.17-0.24 Nws	0.17-0.37 Nws	0.35 ~ 0.65 hli	0.035 ib	0.035 ib	-	-
16 Mn	0.12-0.20 Nws	0.20-0.60 Nws	1.20-1.60 Nws	0.040 ib	0.040 ib	-	-
15 MnV	0.12-0.18 Nws	0.20-0.60 Nws	1.20-1.60 Nws	0.040 ib	0.040 ib	0.04-0.12 Nws	-
10 MoWVNb	0.07-0.13 Nws	0.50-0.80 Nws	0.50-0.80 Nws	0.030 Nws	0.040 ib	0.30-0.50 Nws	0.60-0.90 Nws
12 CrMo	0.08-0.15 Nws	0.17-0.37 Nws	0.40-0.70 Nws	0.040 ib	0.035 ib	0.40-0.70 Nws	0.40-0.55 Nws
15 CrMo	0.12-0.18 Nws	0.17-0.37 Nws	0.40-0.70 Nws	0.040 ib	0.035 ib	0.80-1.10 Nws	0.40-0.55 Nws
1cr5 hmo	≤0.15	≤0.50 ib	≤0.60 ib	0.030 Nws	0.035 ib	4.00-6.00 Nws	0.40-0.60 Nws
12Cr2Mo	0.08-0.15 Nws	0.40-0.70 Nws	≤0.50 ib	0.035 ib	0.035 ib	2.00-2.50 Nws	0.90-1.20 Nws

Specification ntawm chiv yeeb nkab

Specification	Specification	Specification	Specification
48 * 5	53 * 11	57 * 15	68 * 6
48 * 5.5 hli	53 * 12	58 * 1.8 hli	68 * 6.3
48 * 6	53 * 14	58 * 11	68 * 7
48 * 6.5 hli	53 * 1.5 hli	60 * 2	68 * 8
48 * 7	53 * 6	60 * 2.5 hli	68 * 9
48 * 8	54 * 2	60 * 3	68 * 10
48 * 8.5 hli	54 * 2.5 hli	60 * 3.5 hli	68 * 11
48 * 9	54 * 3	60 * 4	68 * 12
48 * 10	54 * 3.5 hli	60 * 4.5 hli	68 * 12.5 hli
48 * 11	54 * 4	60 * 5	68 * 14
48 * 12	54 * 4.5 hli	60 * 5	68 * 16
49 * 4	54 * 5	60 * 5.5 hli	70 * 3.5 hli
49 * 10	54 * 5.5 hli	60 * 6	70 * 4
50 * 1.5 hli	54 * 6	60 * 6.5 hli	70 * 4
50 * 2	54 * 6.5	60 * 7	70 * 4.5 hli
50 * 2.5 hli	54 * 7	60 * 7.5 hli	70 * 5
50 * 3	54 * 8	60 * 8	70 * 6
50 * 3.5 hli	54 * 8.5 hli	60 * 9	70 * 6.5 hli
50 * 4	54 * 9	60 * 10	70 * 7
50 * 4.5 hli	54 * 10	60 * 11	70 * 8
50 * 5	54 * 11	60 * 12	70 * 9
50 * 6	54 * 12	60 * 14	70 * 10
50 * 7	54 * 14	63.5 * 2	70 * 11
50 * 8	55 * 4.5 hli	63.5 * 3	70 * 12
50 * 9	55 * 5.5 hli	63.5 * 3.5 hli	70 * 14
50 * 9	56 * 4	63.5 * 4	70 * 16
50 * 10	56 * 4.5 hli	63.5 * 4.5 hli	73 * 3
50 * 11	56 * 5	63.5 * 5	73 * 3.5 hli
50 * 12	56 * 6	63.5 * 5.5 hli	73 * 4
51 * 1.8 hli	56 * 9	63.5 * 6	73 * 4.5 hli
51 * 3	57 * 3	63.5 * 7	73 * 5
51 * 3.5 hli	57 * 3.5 hli	63.5 * 8	73 * 5.5 hli
51 * 3.6	57 * 4	63.5 * 9	73 * 6
51 * 3.8	57 * 4.5 hli	63.5 * 10	73 * 7
51 * 4	57 * 5	63.5 * 14	73 * 8
51 * 4.5 hli	57 * 5.5 hli	63.5 * 15	73 * 10
51 * 5	57 * 6	63.5 * 16	73 * 11
51 * 5.5 hli	57 * 7	68 * 3	73 * 12
51 * 6	57 * 8	68 * 3.5 hli	73 * 12.5 hli
51 * 7	57 * 9	68 * 4	73 * 14
51 * 8	57 * 9.5 hli	68 * 4	73 * 15
51 * 8.5 hli	57 * 10	68 * 4.5 hli	73 * 16
51 * 9	57 * 12	68 * 5	73 * 18