Paịpụ Anụ E Ji Agba Ojii 904L | UNS N08904 / 1.4539 Akwa Alloy Dị Elu Maka Ọrụ Asịd Sulfuric na Phosphoric - Foto A Na-egosi na Womic Steel

Paịpụ Anụ E Ji Agba Ojii 904L | UNS N08904 / 1.4539 Akwa Alloy Dị Elu Maka Ọrụ Acid Sulfuric na Phosphoric – Womic Steel

Nkọwa Dị Mkpirikpi:

Paịpụ ígwè bimetal nke ejiri ígwè rụọ nke 904L kpuchie - oyi akwa CRA dị n'ime 904L (UNS N08904 / 1.4539) nke ejiri ígwè jikọọ ya na ígwè carbon ma ọ bụ obere ihe nkwado ígwè alloy. Emepụtara ya site na njikọ hot roll + JCOE (a dụkọtara ya) ma ọ bụ site na mmịpụta ọkụ (enweghị ihe ọ bụla maka obere dayameta). Emebere ya maka iguzogide oke acid sulfuric, phosphoric acid, formic acid, acetic acid, na chloride nrụgide corrosion mgbawa. A pịchara ya, a kpụchara ya, ma nwalee ya nke ọma.

Zitere anyị ozi-e Nkọwapụta Ngwaahịa

Nkọwa Ngwaahịa

Akara Ngwaahịa

Ihe Isi (Ígwè Nkwado - ọtụtụ nhọrọ):

●API 5L X52 / X60 / X65- ọkpọkọ siri ike maka nnyefe mmanụ na gas / acid

●SA-106 Gr.B- ígwè carbon dị elu

●SA-210 Gr.C- ọkwa nke ọkpọkọ ọkpọkọ

●ASTM A333 Gr.6- obere carbon ígwè

●ASTM A335 P11 / P22– Ihe mkpuchi Cr-Mo maka oke okpomọkụ (ojiji ya pere mpe na 904L)

Ihe mkpuchi (CRA liner):904L (UNS N08904 / 1.4539) – ígwè austenitic dị elu nke nwere 23-28% Ni, 19-23% Cr, 4-5% Mo, 1-2% Cu. PREN ≈ 34. Ọ na-eguzogide acid ndị na-ebelata (sulfuric, phosphoric, formic), ezigbo iguzogide chloride pitting, karịa 316L na ọrụ acid.

Oke nha:OD 60 – 1219 mm (paịpụ e ji ákwà kpuchie - mpịakọta ọkụ + JCOE). OD 25 – 168 mm (mpụpụ na-enweghị ihe mgbochi). Okpukpu mgbidi isi 4 – 40 mm. Okpukpu mkpuchi 2.0 – 4.0 mm (a na-atụ aro 3.0 mm maka ọrụ acid). Ogologo otu ruo 15 m (enweghị ihe mgbochi) ma ọ bụ 24 m (a gbanyere ya).

Usoro:Njikọ mpịakọta ọkụ + JCOE (a kpara ya ọkụ) ma ọ bụ mwepụ ọkụ (enweghị eriri). Ike ịkpụ nke njikọ ígwè ≥200 MPa (a kpara ya ọkụ) ma ọ bụ ≥300 MPa (enweghị eriri). Nnyocha njikọ UT 100%, ule hydrostatic, ule tensile, flattening, nhọrọ PMI na ule corrosion intergranular.

Ụkpụrụ:API 5LD (maka paịpụ ahịrị a kpuchiri ekpuchi), ASME Nkebi nke VIII Div.1, EN 10216-5 (maka 904L enweghị ntụpọ), ASTM A240 (efere 904L). NACE MR0175: A na-anabata 904L maka ọrụ gbara ụka naanị n'okpuru ọnọdụ dị oke oke (H₂S dị ala, obere chlorides, obere okpomọkụ) - a naghị atụ aro ya n'ozuzu.

Ngwa:Ịkpọpụta ọkpọkọ osisi sulfuric acid, osisi fatịlaịza phosphoric acid, ugbo tankị kemịkalụ, sistemụ jụrụ oyi mmiri mmiri (chloride dị elu), ihe nhicha mmiri flue gas (FGD), nnyefe kemịkalụ dị ọcha, ọrụ acetic/formic acid, nhazi ọgwụ na nri (ịdị ọcha dị elu).

Womic Steelna-emepụta paịpụ 904L nke ejiri ihe mkpuchi kpuchie maka ojiji acid kacha sie ike. Anyị na-ejikọta ike nchara nke 904L na ike igwe nke nkwado ígwè carbon/alloy, na-azọpụta 40 60% vs paịpụ siri ike nke 904L. Akụkụ ahaziri ahazi, nyocha nke ndị ọzọ, EN 10204 Ụdị 3.2 dị. Kpọtụrụ anyị maka ngwọta paịpụ kpuchiri ihe mkpuchi alloy dị elu.

1. Gịnị mere e ji eji 904L ekpuchi paịpụ? Mgbe 316L ezughi oke

904L (UNS N08904 / 1.4539) bụ ígwè anaghị agba nchara austenitic dị elu nke e mepụtara kpọmkwem maka ojiji ebe 316L na-ada ada n'ihi enweghị ike iguzogide acid ma ọ bụ pitting zuru oke.

Ihe dị iche iche dị mkpa vs 316L:

Akụ na ụba	316L	904L	Uru
Nickel (%)	10-14	23-28	Ni dị elu na-eme ka iguzogide acid dịkwuo mma
Molybdenum (%)	2-3	4-5	Elu Mo na-eme ka ọkpọkọ dịkwuo mma
Kọpa (%)	—	1-2	Cu dị oke mkpa maka iguzogide acid sulfuric
PREN	24-26	34	904L na-eguzogide mmiri karịa
Mgbochi asịd sọlfọ	Ọbara dara n'okpuru 10% ma ọ bụ karịa 80%	Ọ dị mma 0-80% na oke okpomọkụ dị ala	904L bụ ọkọlọtọ maka ọrụ H₂SO₄

Asịd nkịtị ebe 904L karịrị nke ọma:

● Asịd sọlfọ (H₂SO₄) – Ntinye uche 0-80%, ruo 50 60°C

● Asịd phosphoric (H₃PO₄) – mkpokọta niile

● Asịd Formic (HCOOH) na acetic acid (CH₃COOH)

● Asịd hydrochloric (HCl) - a kpachapụrụ anya

● Asịd agwakọtara (dịka ọmụmaatụ, H₂SO₄ + chlorides)

Gịnị mere e ji yi uwe?Paịpụ siri ike nke 904L dị oke ọnụ (ọnụ ahịa 2 3× nke 316L, ọnụahịa 5 6× nke ígwè carbon). Site n'iji akwa dị n'ime dị gịrịgịrị (2 4 mm) nke 904L nke ejikọtara na paịpụ dị n'èzí nke ígwè carbon, ị na-enweta otu nguzogide nchara ahụ na40 60% obere ọnụ ahịa iheIsi ígwè carbon na-enye ike igwe na obere ego nke alloy.

Ụlọ ọrụ ndị a na-ahụkarị:Mmepụta na mbufe nke asịd sọlfọ, osisi fatịlaịza phosphate, eriri ígwè a na-amịkọrọ ihe, tankị kemịkalụ, ihe mgbanwe okpomọkụ mmiri oké osimiri (chloride dị elu, okpomọkụ dị mma).

2. Nkọwapụta Ihe - Nhọrọ 904L nke mkpuchi na nkwado ígwè

Ihe mejupụtara kemịkalụ 2.1 904L (% site na oke)

Ihe	UNS N08904 (904L)
Kabọn (C)	≤0.020
Manganese (Mn)	≤2.00
Silikọn (Si)	≤1.00
Fọshọrọs (P)	≤0.040
Sọlfọ (S)	≤0.030
Chromium (Cr)	19.0 – 23.0
Nickel (Ni)	23.0 – 28.0
Molybdenum (Mo)	4.0 – 5.0
Kọpa (Cu)	1.0 – 2.0
Ígwè (Fe)	Nhazi nguzozi

Mgbakwunye ọla kọpa dị oke mkpa maka iguzogide asịd sulfuric. Na-enweghị Cu, 316L na-enweta mwakpo ngwa ngwa na H₂SO₄ dị ọkụ.

2.2 Njirimara Mechanical (Okpomọkụ Ụlọ)

Akụ na ụba	Ihe mkpuchi 904L	Nkwado ígwè carbon nkịtị
Ike Mmepụta (min, MPa)	220	240 450 (dabere na ọkwa)
Ike nrụgide (min, MPa)	490	415 535
Ogologo (nkeji, %)	35	18 25
Isi ike (kachasị)	200 HB	Dịka ọkwa dị na klas

2.3 Nguzogide Nrụgide nke 904L - Isi Data

Asịd	Ntinye uche	Okpomọkụ	Ọnụego nchara (mm/afọ)
Sọlfọ (H₂SO₄)	10-50%	50°C	<0.1 (ọ dị mma)
Sọlfọ (H₂SO₄)	70-80%	30°C	<0.1
Phosphoric (H₃PO₄)	30-85%	80°C	<0.1
Asịd Formic	Ọ bụla	100°C	<0.1
Asịd acetic	Ọ bụla	100°C	<0.1
Mmiri oké osimiri	3.5% Cl-	30°C	Ọ dị mma iguzogide nrụgide (PREN 34)

Mmachi:A naghị atụ aro 904L maka sọlfọlik acid dị ọkụ (>80°C) (>90%) ma ọ bụ maka ọrụ hydrochloric acid dị elu. Maka ndị ahụ, tụlee alloy nickel (Alloy C-276).

2.4 Nhọrọ ígwè nkwado maka ọkpọkọ 904L Clad

Ígwè Akwado	Ọkọlọtọ	Ike	Ngwa Isi maka 904L Clad
API 5L X52 / X60 / X65	API 5L PSL2	Mmụba 360 450 MPa	Ọkpọkọ acid dị anya
SA-106 Gr.B	ASTM A106	Mmepụta 240 MPa	Paịpụ ndị na-emepụta ihe na ụlọ ọrụ kemịkalụ
SA-210 Gr.C	ASME SA-210	Mmepụta 245 MPa	Ọkpọkọ mmiri ọkụ / ọkpọkọ mgbanwe okpomọkụ
ASTM A333 Gr.6	ASTM A333	Mmepụta 240 MPa	Paịpụ acid dị ala (-45°C)
ASTM A335 P11 / P22	ASTM A335	Mmụba 205 275 MPa	Oke okpomọkụ (>450°C?) Rịba ama: 904L nwere oke na ~350°C na acid

Rịba ama maka oke okpomọkụ:904L n'onwe ya adabaghị maka okpomọkụ ígwè karịrị 350-400°C n'ọrụ ire ere. Ígwè nkwado ahụ nwere ike iguzogide okpomọkụ dị elu, mana mkpuchi ahụ ga-ebelata okpomọkụ ọrụ niile. Maka ọrụ acid dị elu (>400°C), tụlee mkpuchi Alloy 825 ma ọ bụ Alloy 28.

Oke nha 2.5

Usoro Mmepụta Ihe	Oke OD (mm)	Isi WT (mm)	WT mkpuchi (mm)	Ogologo Kachasị (m)
Ejiri ihe mkpuchi (mpịakọta ọkụ + JCOE)	219 – 1219	6 – 40	2.0 – 4.0	24
Enweghị ntụpọ (mgbapụta)	25 – 168	4 – 15	2.0 – 3.5	15

A na-atụ aro ka a na-eji ihe mkpuchi kpuchie ya maka ọrụ acid:Opekata mpe 3.0 mm. Maka ọnọdụ siri ike nke ukwuu (dịka ọmụmaatụ, acid sulfuric na-ekpo ọkụ nke nwere ọsọ dị elu), anyị na-akwado 4.0 mm.

3. Usoro Mmepụta - Njikọta Mpịakọta Ọkụ + JCOE (Welded, OD ≥219 mm)

Maka nnukwu ọkpọkọ acid dị n'obosara, nke a bụ ụzọ bụ isi:

Nzọụkwụ	Nkọwa
Nkwadebe efere	A na-asacha efere 904L (CRA) na efere ígwè carbon (azụ), a na-ejikọta ha (904L n'ime), ma mechie ikuku iji wepụ oxygen.
Njikọ mpịakọta ọkụ	A na-ekpo ọkụ ikpo ahụ ruo 1100-1180°C ma tụgharịa ya na oke mbelata dị elu (≥5:1). N'ime oyi akwa ndị ahụ, ha na-ejikọta onwe ha na ígwè.
Efere NDT	Nnwale ultrasonic 100% nke njikọ njikọ efere mkpuchi.
Ịmepụta JCOE	A na-akpụcha efere ahụ e ji ihe mkpuchi kpuchie, wee mepụta ya ka ọ bụrụ paịpụ mepere emepe site na iji igwe JCO. 904L na-aghọ elu dị n'ime.
Ịgbado nkwonkwo ogologo	Ngafe abụọ: ngafe dị n'ime nwere ihe nzacha 904L (ma ọ bụ Alloy 625), ngafe dị n'èzí nwere ihe mkpuchi ígwè carbon.
Njikọta njikọta (nhọrọ)	A pụrụ iji 904L ma ọ bụ Alloy 625 kpuchie ihe mkpuchi dị n'ime nke a na-akpọ Weld Seal maka mkpuchi nchara zuru oke.
Ọgwụgwọ okpomọkụ	Ọgwụ mgbochi nrụgide (ọ bụrụ na ọ dị mkpa). 904L achọghị ọgwụgwọ okpomọkụ mgbe ejiri weld mee ihe.
NDT na nnwale	Dịka Nkebi nke 4 si dị.
Ịhịa aka n'ahụ na ịta nri	Maka elu dị n'ime 904L, iji hụ na oyi akwa na-agafe agafe.
Nnyocha ikpeazụ na mbupu	Bevel, okpu, njikọta.

Maka enweghị ntụpọ (obere dayameta, OD ≤168 mm):Ntụnye centrifugal + mmịpụta ọkụ (dị ka ihe ndị e ji paịpụ kpuchie n'oge gara aga). Enweghị ntụpọ na-ewepụ njikọta ogologo oge, nke a na-ahọrọ maka ndị na-agbanwe okpomọkụ U bend na ahịrị dị ọcha dị elu.

4. Nnyocha na Nnwale - Pipe 904L Clad

Ebe ọ bụ na 904L bụ ihe mejupụtara ihe mkpuchi dị elu, anyị na-elebara anya nke ọma na nhazi ihe mkpuchi na nkwenye ule nchara.

Ule	Ụkpụrụ / Usoro	Oke	Nnabata
PMI (XRF) nke mkpuchi 904L	Nchọpụta Ihe Dị Mma	Tube ọ bụla (ma ọ bụ efere ọ bụla)	Kwado Cu, Mo, Ni, Cr n'ime nkọwapụta
Njikọ UT	Ebili mmiri shear	100% nke ihe mkpuchi interface	Enweghị mwepụ >50mm; mkpokọta <2%
UT ogologo oge	ASTM E213 / ISO 10893 10	100% nke tube	Enweghị ụda olu a na-ajụ ajụ
Nnwale Hydrostatic	Nrụgide imewe 1.5 ×	Tubọọ ọ bụla	Enweghị ntapu mmiri
Nkwụsi ike (ígwè nkwado)	Kwa API 5L / A106 / wdg.	Kwa okpomọkụ	Mee ka nkọwapụta ọkwa zute
Njikọta (njikọ nkekọ)	Pụpụ ma ọ bụ kpọọ shear	Kwa otu	≥200 MPa (agbadoro)
Ike siri ike (ihe mkpuchi 904L)	HV10	Ogbe	≤200 HV
Nchikota dị n'etiti granular	ASTM A262 Practice E (na 904L)	Kwa otu (nhọrọ)	Enweghị mwakpo dị n'etiti granular
Nnwale ime ka ihe dị nro	ASME SA 450	Kwa otu	Enweghị mgbawa

Asambodo:EN 10204 Ụdị 3.1 (ọkọlọtọ). Ụdị 3.2 nwere onye akaebe nke atọ (SGS, BV, DNV, TÜV) dị ma ọ bụrụ na a rịọ ya.

Nnwale ndị ọzọ mgbe a rịọrọ ya (a ga-ana ya ụgwọ):

● Ike ịtụnye ihe (ASTM G5)

● Nnwale ọla kọpa sulfate – sọlfọric acid maka 904L (nke a kapịrị ọnụ maka ọrụ H₂SO₄)

5. Ngwa - Ebe Paịpụ 904L Clad bụ nhọrọ ziri ezi

5.1 Ọkpọkọ Osisi Sulfuric Acid

Ihe ịma aka:Asịd sọlfọm dị ọkụ (60-80%, 50-80°C) na-emebi ígwè carbon nke ukwuu, ọbụnadị 316L. 904L abụrụla ihe a na-ejikarị eme ihe maka alkylation nke sọlfọm, ụlọ elu nkụ, na njikọ paịpụ ruo ọtụtụ iri afọ.

Ngwọta:Paịpụ e ji ihe mkpuchi 904L kpuchie nke nwere ihe nkwado ígwè carbon (SA-106 Gr.B ma ọ bụ API 5L X52). Akwa dị n'ime nke 904L na-ejikwa acid ahụ; ígwè carbon na-enye ike nrụgide ma na-ebelata ọnụ ahịa.

Ihe atụ:24″ OD × 12.7 mm isi WT × 3.0 mm 904L cladding, ogologo ya bụ mita 12. A na-eji ya eme ihe na nkeji mgbake sọlfọ nke Middle Eastern.

Osisi fatịlaịza 5.2 nke phosphoric acid

Ihe ịma aka:Asịd phosphoric (30-50%, 50-90°C) nwere chlorides, fluorides, na ihe siri ike. 316L olulu na oghere na-emebi emebi. 904L na-enye iguzogide ka mma.

Ngwọta:Paịpụ e ji ihe mkpuchi 904L kpuchie nke nwere nkwado SA-106 Gr.B. Ọla kọpa dị na 904L bara uru nke ukwuu na phosphoric acid.

5.3 Ịjụ oyi / Ịsa mmiri n'ime mmiri (High Chloride)

Ihe ịma aka:316L nwere ike ibute ire ere n'ime mmiri oké osimiri na-adịghị apụ apụ na okpomọkụ karịrị 30-40°C. 904L nwere PREN dị elu (34) ma na-eguzogide olulu mmiri nke ọma.

Ngwọta:Paịpụ 904L nke e ji ihe mkpuchi kpuchie nwere nkwado API 5L X65 maka eriri mmiri mmiri dị elu. A na-eji ya na ikpo okwu mmiri ọkụ na sistemụ oyi.

5.4 Nchekwa na Nnyefe Tankị Kemịkalụ

Ihe ịma aka:Tankị nchekwa maka acetic acid, formic acid, ma ọ bụ agwakọtara organic acid chọrọ ihe alloy siri ike ma ọ bụ ígwè carbon nke ejiri roba kpuchie. Ihe mkpuchi rọba nwere ike ịda ada.

Ngwọta:Paịpụ e ji ihe mkpuchi 904L kpuchie na-enye ihe mgbochi na-adịgide adịgide, nke na-enweghị mmebi. Maka paịpụ ndị e ji ihe mkpuchi kpụọ n'ugbo tankị, paịpụ e ji ihe mkpuchi kpụọ dị mma.

5.5 Ihe nhicha gas flue (FGD)

Ihe ịma aka:Sistemụ FGD na-ejikwa ihe ndị na-eme ka mmiri gypsum dị ala nwere obere pH na chlorides. Ọtụtụ ụlọ elu na ọkpọkọ mmiri FGD na-eji alloys 904L ma ọ bụ karịa.

Ngwọta:Paịpụ e ji ihe mkpuchi 904L kpuchie maka ahịrị mmegharị mmiri slurry. Ihe nkwado nwere ike ịbụ A106 Gr.B ma ọ bụ A333 Gr.6 (ọ bụrụ na ọ dị oyi).

6. Gịnị mere ị ga-eji họrọ Womic Steel maka 904L Clad Pipe?

Ike	Nkọwa
Ahụmịhe na alloys dị elu	Anyị emepụtala paịpụ 904L nke e ji ihe mkpuchi kpuchie maka ọtụtụ ọrụ mmepụta ihe ọkụkụ acid na China, Middle East, na Southeast Asia.
Ezigbo njikọ ígwè	Enweghị ihe egwu nke ịda ada - 904L na-ejikọta na ígwè nkwado kpamkpam.
Oke nha sara mbara	Obere dayameta enweghị ntụpọ (mgbapụ) nke a na-agbakọta ruo nnukwu dayameta (1219 mm).
Nchọta zuru oke	A na-edekọ ma jikọọ ọnụọgụ okpomọkụ nke efere 904L ọ bụla na paịpụ ikpeazụ. Enwere ike ime PMI n'ọtụtụ ebe.
Nnyocha nke ndị ọzọ	SGS, BV, DNV, TÜV hụrụ n'oge mmepụta ya. EN 10204 Ụdị 3.2 dị.
Nchekwa ọnụ ahịa	40 60% dị ọnụ ala karịa paịpụ siri ike nke 904L nke nwere otu ọkwa nrụgide.

7. Nkwakọ ngwaahịa, Mbupu na Oge Nduzi

●Ọnọdụ:Elu dị n'ime 904L a gwakọtara agwakọta ma ọ bụ nke a na-anaghị agwakọta; a pụrụ itinye mmanụ ma ọ bụ tinye ígwè carbon dị n'èzí.

● Nchedo njedebe:Mkpuchi plastik (mkpuchi ígwè maka nnukwu dayameta).

●Nchikota:Maka obere dayameta (<20″) - ngwugwu nwere oghere. Maka nnukwu dayameta - ihe mkpuchi nkeonwe.

●Oge mbu (usoro mbụ):Izu 14-18 (nri efere 904L na-esi na ya apụta ma na-atụgharị ya). Iwu ndị ọzọ: Izu 10-12.

●MOQ:Anaghị anabata MOQ siri ike; a na-anabata iwu nnwale (dịka ọmụmaatụ, mita 100-200). Ọnụ ahịa maka obere ọnụọgụ dị elu.

8. Ajụjụ Ndị A Na-ajụkarị (Ajụjụ Ndị A Na-ajụkarị) – Paịpụ 904L nke e ji ákwà kpuchie

Q1: Olee mgbe m ga-ahọrọ 904L karịa 316L maka paịpụ a kpuchiri ekpuchi?
A: Họrọ 904L mgbe ọrụ ahụ gụnyereasịd sọlfọ, asịd phosphoric, asịd formic/acetic, ma ọ bụ mgbe 316L gosiri mkpọda ma ọ bụ ire ere n'ozuzu gburugburu ebe obibi gị. 904L ka mma maka mmiri oké osimiri na-ekpo ọkụ (chloride dị elu). Ọ bụrụ na mmiri ahụ dị ntakịrị acidic na-enweghị chlorides, 316L nwere ike izu oke.

Q2: Kedu okpomọkụ kachasị elu maka 904L?
A: N'ọrụ nrụrụ, a na-ejikarị 904L eme ihe350-400°C. N'elu nke ahụ, ihe ahụ nwere ike ime ka ọ ghara ịdị mma ma ọ bụ ghara iguzogide nchara. Maka ọrụ acid dị elu (>400°C), tụlee Alloy 825 ma ọ bụ 625.

Q3: Enwere ike iji 904L mee ọrụ gas gbara ụka (H₂S)?
A: NACE MR0175 / ISO 15156 na-enye ohere 904L maka ọrụ gbara ụka naanị n'ọnọdụ dị oke nro: obere nrụgide H₂S, obere chlorides, pH >3.5, okpomọkụ <60°C. Maka gas mmiri gbara ụka nkịtị, a na-ahọrọ Incoloy 825.

Q4: Kedu ihe e ji eme ihe e kwesịrị iji maka ọkpọkọ 904L nke e ji ihe mkpuchi kpuchie?
A: Maka ngafe dị n'ime (904L ruo 904L), jiriAlloy 625 (ERNiCrMo-3)ma ọ bụIhe nju 904L (ER385)Alloy 625 bụ ihe a na-ahụkarị ma na-enye nchekwa dị elu. Ejila ihe na-emeju 316L.

Q5: Ọ dị na paịpụ 904L a kpara akpa n'obere dayameta (dịka ọmụmaatụ, 2 ") maka ngwa ọrụ?
A: Ee, site na usoro mmịpụta anyị na-enweghị ntụpọ. Opekempe OD dị ihe dị ka 25 mm (1 "). Ọkpụrụkpụ mkpuchi bụ 2.0 2.5 mm.

Q6: Kedu ka 904L si tụnyere Alloy 28 (UNS N08028)?
A: Ha abụọ bụ austenitics alloy dị elu nwere PREN yiri nke ahụ (34 vs 38). Alloy 28 nwere Cr na Ni dị elu, yana iguzogide oke chloride + okpomọkụ dị elu. Maka sulfuric acid, ha abụọ dị mma. Alloy 28 dị ntakịrị ọnụ karịa. 904L na-adịkarị na osisi acid North America; Alloy 28 na nkọwapụta Europe.

Q7: Ị nwere ike inye paịpụ 904L nke nwere azụ A333 Gr.6 maka ọrụ okpomọkụ dị ala?
A: Ee. 904L ka na-arụ ọrụ nke ọma na obere okpomọkụ; a nwalere nkwado A333 Gr.6 na -45°C. Njikọta a dabara adaba maka paịpụ arctic acid (ọ dị ụkọ mana o kwere omume).

Q8: Ị na-emesi obi ike na ihe mkpuchi ahụ enweghị mmiri site na ígwè carbon?
A: Ee. Usoro njikọ vacuum hot roll na-egbochi oxidation ma na-ebelata mgbasa. Anyị na-eme PMI n'elu ihe mkpuchi iji chọpụta ihe mejupụtara ya. Mpaghara dilution na-abụkarị naanị obere microns dị arọ ma anaghị ekpughe ya na mmiri mmiri ahụ.

Q9: Kedu ihe bụ ike mmepụta nkịtị nke mkpuchi 904L?
A: 904L nwere ike mmepụta ihe dị ka 220 MPa (32 ksi) n'ọnọdụ annealed. Nke a dị ala karịa nkwado ígwè carbon mana ọkpụrụkpụ mkpuchi ahụ dị obere; isi ígwè carbon na-ebu nrụgide hoop. Maka imewe nrụgide, anyị na-eji naanị ọkpụrụkpụ mgbidi ígwè azụ; a na-ewere mkpuchi ahụ dị ka ihe na-egbochi nchara.

Q10: Ị na-enye nsọtụ beveled na 904L buttering?
A: Ee. Anyị nwere ike ịkwadebe bevels (ala 30-35°, 1.6 mm) ma tinye ihe mkpuchi Alloy 625 ma ọ bụ 904L n'elu ihu bevel. Nke a na-egbochi ịgbaze ihe mkpuchi 904L n'oge ịgbado ọkụ ubi.

Q11: Ị nwere ike ịnye ọkpọkọ U-bend nke nwere ihe mgbanwe okpomọkụ 904L?
A: Ee, maka paịpụ a kpuchiri nke ọma (OD ≤168 mm). Anyị na-agbagọ oyi, na-ebelata nrụgide, ma na-ebelata NDT (PT ma ọ bụ ET) mpaghara gbagọrọ agbagọ 100%. U-bends maka ọrụ acid bụ ihe a na-ahụkarị na osisi kemịkalụ.

Q12: Kedu otu m ga-esi nye iwu obere ọnụọgụ nnwale?
A: Nye OD, isi WT, ọkpụrụkpụ ihe mkpuchi, ogologo (m), na ọkwa ígwè nkwado. Anyị ga-ekwu maka otu nnwale (dịka ọmụmaatụ, mita 50 100). A na-atụ anya ọnụahịa dị elu maka obere ọnụọgụ.

9. Ndepụta ihe nlele maka 904L Clad Pipe

Iji hụ na nkọwapụta ziri ezi, biko nye:

●Ọkwa ígwè nkwado(API 5L X52/60/65, SA-106 Gr.B, SA-210 Gr.C, A333 Gr.6, ma ọ bụ A335 P11/P22)

● Dayameta mpụta (OD)naỌkpụrụkpụ mgbidi dị n'etiti

● Ọkpụrụkpụ mkpuchi 904L(a na-atụ aro 3.0 mm maka ọrụ acid)

● Ogologo kwa ibenaogologo zuru oke (mita)

● Usoro mmepụta ihe(a na-agbakọta ya na OD ≥219 mm; enweghị ntụpọ maka OD ≤168 mm)

● Ụkpụrụ dị irè(API 5LD, ASME, EN, ma ọ bụ nkọwapụta ndị ahịa)

● Ọkwa nyocha(Ụdị ọkọlọtọ 3.1; Ụdị 3.2 na ndị ọzọ)

● Mmecha njedebe(dị larịị, gbapụrụ agbagọ, agba agba + 904L bọta)

● Oge nnyefe(Ọdụ ụgbọ mmiri FOB China, ọdụ ụgbọ mmiri ebe a na-aga CIF)

Womic Steel ga-aza ajụjụ site na mpempe akwụkwọ teknụzụ, ọnụahịa azụmaahịa, na atụmatụ mma.

10. Kpọtụrụ Womic Steel – Ọkachamara na Paịpụ Alloy Clod

Ọ bụrụ na ị na-achọPaịpụ 316L nke e ji ákwà kpuchieSite na nkwado carbon ma ọ bụ alloy ígwè ọ bụla, kpọtụrụ anyị maka ndụmọdụ teknụzụ n'efu na enweghị nkọwa ọrụ.

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Womic Steel – Ngwọta paịpụ 316L e ji kpuchie nke e ji CO₂ rụọ maka ọrụ, ihe na-agba mmiri ọkụ, ihe na-agbanwe okpomọkụ, obere okpomọkụ, na ngwa okpomọkụ dị elu.

Nke gara aga: Paịpụ 316L nke ejiri ígwè anaghị agba nchara kpuchie | Nkwado ígwè Carbon na Alloy maka ọrụ CO₂, Boiler, Exchanger Okpomọkụ na Okpomọkụ dị ala - Womic Steel

Osote: Onye Na-emepụta Paịpụ Bimetal | Paịpụ Ejiri Metal Gbakọọ nke A Na-ejikọta Ya na CRA – Womic Steel