Weld Overlay Flange hmanga siam a ni

A weld overlay flange a nichu forged flange a ni a, a corrosion-resistant alloy layer chu welding hmanga fluid-contact surface-ah dah a ni. Base flange hian pressure load leh bolting force a keng tel a, CRA overlay layer hian bore, sealing face, RTJ groove, neck transition emaw, wetted area dang emaw chu corrosive media lakah a venghim thung.

He structure hi standard carbon steel emaw low alloy steel flange emaw hian mechanical strength a neih tawk a, mahse process side-ah chuan corrosion resistance chak zawk a mamawh chuan hman thin a ni. Service condition tlangpui chu sour gas, CO2-containing gas, tuifinriat tui injection, tui siam chhuah, chloride-bearing fluid, refinery media, petrochemical process line, leh tuipui kama pipeline connection te a ni.

Solid alloy flange nena khaikhin chuan weld overlay hian project chu a mamawh contact surface-ah chauh corrosion-resistant alloy hman a phalsak a ni. Hei hian material cost control nan a pui a, chutih rualin flange body chu pressure class mamawh angin a nghet tawk a ni. Octal Steel hmanga thil siam chhuah a niweld overlay a ni a, flanges siam a niweld neck, blind, RTJ, slip-on, leh custom drawing-based type-ah te, heng zingah hianAlloy 625 / Inconel 625 Weld Overlay Flange hmanga siam a ni, Alloy 825, 316L, 904L, duplex stainless steel, leh super duplex stainless steel overlay duhthlan tur a awm bawk.

Weld overlay flange hi material system pahnih atanga siam a ni. Base forging hian mechanical strength, pressure rating, flange geometry, leh bolting stability te a pe a ni. Overlay material hian wetted side-ah corrosion resistance a pe a ni.

Base material hman tlanglawn tak takte chu standard carbon steel forged flanges atan ASTM A105, low-temperature service atan A350 LF2, high-pressure transmission system atan A694 F52 / F60 / F65 / F70, leh alloy steel, stainless steel, duplex, emaw super duplex forged flange mamawhna atan A182 grades te an ni.

CRA overlay alloy hi process medium tak tak angin thlan tur a ni. Hman man chauh hi thlan dan him a ni lo. H2S, CO2, chloride concentration, operating temperature, pressure, tui awm zat, pH, oxygen ingress, leh connected piping material te hian material thlan hnuhnung ber a nghawng thei vek a ni.

Tanflange cladding weld hmanga siam a niproject-ah chuan overlay alloy pawh a connected component nen a inmil tur a ni. Flange chu clad pipe, CRA-lined pipe, overlay pipe, corrosion-resistant valve, spool, emaw manifold nena inzawm a nih chuan, unprotected carbon steel chu flow path-a a awm loh nan overlay boundary chu enfiah leh tur a ni.

Overlay area hi a detail tlemte a ni lo. A man, machining allowance, inspection scope, leh flange hian wetted surface a humhim thei tak tak em tih te a rel a ni. "CRA overlay required" tih ziak purchase note hi a tawk lo tlangpui. Drawing-ah hian weld overlay layer mamawhna hmun dik tak a lang tur a ni.

RTJ weld overlay flanges te hi ngaihven belh a ngai a ni. Ring groove hi sealing surface a ni a, machined profile chauh ni lovin. Overlay leh final machining hnuah groove chu a dimension, surface condition, PT result, leh overlay thickness la awm leh awm loh enfiah tur a ni.

Raised face flanges tan chuan gasket contact area chu final facing hnuah control tur a ni. Machining hnua sealing face flatness, finish, emaw thickness emaw chuan drawing requirement a tlin loh chuan visually smooth CRA layer a tawk lo.

A siam chhuah danweld overlay a ni a, flanges siam a niflange machining pangngai nen a danglam a ni. Process hian welding dilution, machining allowance, final chemistry, leh sealing surface geometry te chu a rualin ngaihtuah a ngai a ni.

Practical production route-ah chuan a tlangpuiin a hnuaia step te hi a tel thin:

1. Base forging review neih a ni
Overlay hna thawh tan hmain flange body material, heat number, forging standard, pressure class, facing type, leh MTC te chu enfiah thin a ni. He step hian base flange ngei pawh hi purchase order leh project drawing nen a inmil tih a nemnghet a ni.

2. Overlay-zone leh machining allowance tihdikna
Bore, raised face, RTJ groove, blind inner face, neck transition, emaw wetted area dang emaw te chu drawing-ah hian enfiah a ni. Machining allowance tling tak ruahman a ngai a, chutiang chuan final machined surface chuan CRA layer mamawh chu a la vawng reng thei ang.

3. WPS / PQR leh filler metal buatsaih dan
Weld overlay procedure, filler metal, welding process, heat input range, layer sequence, leh welder qualification te chu siam chhuah hmain siam hmasak tur a ni. Hei hi Alloy 625, Alloy 825, duplex, leh super duplex overlay hnathawhna atan a pawimawh hle.

4. CRA weld overlay a awm dan tur
CRA layer hi welder thiam tak tak emaw welding operator emaw ten an dah thin a ni. Multi-layer overlay hi hman a ni fo thin a, a chhan chu layer hmasa ber chu base metal hmanga diluted theih a nih vang a ni. Final acceptance chu machining hnua a finished surface atanga chhut tur a ni.

5. Intermediate tihfai leh hmuh theihna control
Pass inkar tihfai hian slag, contamination, fusion awm lohna, leh surface defects te a awm loh nan a pui thin. He step hi cheimawi hna a ni lo va; a hnua PT inspection chu fai taka a pass dawn leh dawn loh a rel fo thin.

6. A tul hunah PWHT enfiah
Base material emaw project specification thenkhatah chuan post-weld heat treatment a ngai thei. PWHT hi siam chhuah hmain enfiah hmasak tur a ni a, a chhan chu hardness, dimensional control, leh final inspection plan te a nghawng thei a ni.

7. Rough machining leh final machining te
Overlay welding hnuah flange chu final bore, facing, RTJ groove, bolt hole, leh sealing dimension thlengin machine hmangin an siam a ni. Hei hi fimkhur lo taka siam chhuah hian CRA material tam lutuk a paih chhuah theihna hmun a ni. He stage hnuah pawh hian minimum finished overlay thickness chu a la awm reng tur a ni.

8. A tawp bera enfiah leh document enfiah
PT, PMI, hardness, ferrite, dimensional inspection, leh surface finish check te hi project mamawh angin tih a ni. Report te chu thawn chhuah hmain flange marking, heat number, leh packing list te nen a inmil tur a ni.

Pipe, flange leh plate product hrang hranga weld overlay process chungchang technical explanation zau zawk hmuh duh chuan kan...weld overlay kaihhruaina.

Weld overlay flanges tan chuan inspection hian thil pahnih a finfiah tur a ni: base flange hian mechanical leh dimensional requirement a tlin a, CRA overlay hian corrosion-service requirement a tlin bawk. A sir lehlamah a chak lo a nih chuan flange hian project acceptance a hlawhchham thei.

Machine hmanga siam zawh hnuah PMIa pawimawh zual hle. PMI hi final machining hma chauha tih a nih chuan process medium nena inzawm tur surface chu a entir kim lo mai thei. Sour emaw chloride-bearing service atan chuan final machined CRA surface chu area pawimawh ber a ni.

Export shipment atan chuan document matching hi quality control-ah a tel a ni. Heat number, base material certificate, overlay alloy, PMI report, PT report, packing list, leh flange marking te chu chiang takin a inzawm tur a ni. Hei hian record bo emaw, inmil lo emaw avanga inspection delay dawn theihna a ti tlem a ni.

Weld overlay flanges hi flange body-in standard pressure strength a mamawhna hmunah hman a ni a, mahse fluid-contact surface chuan sour gas, chloride-bearing water, tuifinriat tui, acidic media emaw aggressive process fluids atanga corrosion a do tur a ni. Mi pangngai ang lo takinweld chu flange-ah a awmpipe connection leh pressure class atana thlan bik, weld overlay flange pawhin medium-a CRA surface exposed chu a control tur a ni.

• Sour gas siamchhuah leh khawlkhawm dan

H2S-containing service-ah chuan flange body hian carbon steel emaw alloy steel chakna hniam emaw a mamawh thei a, wetted surface erawh chuan CRA protection a mamawh thung. Hetiang service chi hrang hrang atan hian Alloy 625 overlay hi review fo thin a ni. Hardness control, HAZ condition, leh NACE MR0175 / ISO 15156 mamawh te chu siam chhuah hmain enfiah hmasak phawt tur a ni.

• Tuipui tui injection leh tui line siam chhuak

Tuipui tui leh tui siamchhuahah hian chloride, dissolved gas, sand, scale leh corrosion driver dangte a awm thei. Bore overlay, raised face overlay leh neck transition overlay te hian fluid-contact area-a carbon steel exposed hlauhawmna a tihziaawm thei a ni.

• Offshore leh subsea inkar a ni

Offshore project-ah hian enfiah leh documentation khauh zawk neih a ngai fo thin. RTJ groove, gasket face, manifold connection, valve interface leh compact spool connection te hian PMI, PT, hardness testing, ferrite testing, dimensional inspection leh third-party witness point te a mamawh thei a ni.

• Refinery leh petrochemical process line te pawh a awm bawk

Acid process media, chloride-containing fluids, high-temperature streams leh mixed corrosion environment te hian flange wetted surface-ah CRA venhimna a mamawh thei a ni. Weld overlay hian project hian standard pressure-bearing flange body a hmang thei a, chutih rualin medium chuan component a contact tak takna hmunah chuan corrosion resistance a ti tha bawk.

• Clad pipe, CRA-lined pipe leh manifold inzawmna te a awm bawk

Weld overlay flanges hi clad pipe, CRA-lined pipe, weld overlay pipe, valve, spool leh manifold te nen hman a ni fo thin. Overlay area chu connected component nen a inmil tur a ni a, chutiang chuan corrosion-resistant path chu a kal zel tur a ni.

Octal Steel hmanga siam a nimaterial review atanga shipment release thlengin he process hi a thlawp a ni. Base flange grade, overlay alloy, finished overlay thickness, facing type, RTJ groove mamawh, leh inspection scope te chu production tan hmain align-naah kan pui a, chuvangin delivered flange chu inspection dawn hunah verify a awlsam zawk.

Kan advantage chu supply range chauh ni lovin,...project inremna siam a ni: forged flange sourcing, CRA overlay control, final machining, PMI / PT / hardness inspection, third-party inspection support, leh export document buatsaih te hi supply chain pakhatah enkawl theih a ni. Hei hian thil inmil lo, overlay scope chiang lo, report awm lo, emaw, thawn chhuah hmaa sealing-face damage awm theihna a ti tlem a ni.

Export order atan chuan Octal Steel hian machined surface, RTJ grooves, raised faces, bolt holes, leh flange marking te packing protection a ngaihven bawk a, hei hian flange chu product condition leh document package project review atana inpeih vek nen a thlen theih nan a pui a ni.

Tunah hian biak theih reng e

FAQ

 

01.Weld overlay flanges order hunah eng nge tarlan tur?

Buyers te chuan flange type, size, pressure class, facing type, base material, overlay alloy, overlay area, leh machining hnua finished overlay thickness tlem ber te an tarlang tur a ni. Critical service atan chuan PMI, PT, hardness, ferrite test, WPS/PQR, leh third-party inspection mamawh te pawh purchase order-ah tarlan tur a ni.

02.Weld overlay flange-a eng hmun nge CRA overlay mamawh?

Overlay area tlangpui chu bore, raised face, RTJ groove, neck transition, blind flange inner face, leh drawing-a wetted surface dangte a ni. Overlay area chu chiang taka chhinchhiah tur a ni a, a chhan chu flow path-a carbon steel exposed eng pawh chu corrosion risk a ni thei a ni.

03.Engvangin nge Inconel 625 hi weld overlay flanges atan hman a nih?

Inconel 625 / Alloy 625 hi sour gas, tuifinriat tui injection, tui siam chhuah, tuipui kama piping, leh chloride-bearing service atan thlan a ni tlangpui. Acceptance atan chuan final machined overlay surface chu PMI emaw chemical check emaw hmanga verified tur a ni a, a chhan chu base metal atanga dilution hian surface chemistry a nghawng thei a ni.

04.Weld overlay flanges atana finished overlay thickness tlangpui chu eng nge ni?

Project tam takah chuan CRA overlay thickness finished tlem ber an tarlang a, a tam zawkah chuan a chhehvel a nifinal machining hnuah 3.0 mm a ni, mahse a value dik tak chuan project drawing emaw specification emaw a zawm tur a ni. A pawimawh ber chu as-welded deposit chauh ni lovin, wetted surface zawh tawha overlay thickness la awm chu verify a ni.

Certification pek chhuah a ni

 

CE Certificate neih a ni

ISO 9001 Certificate a ni

API Q1 Certificate a ni

ABS Certificate a awm bawk

AP-5L Certificate pek a ni

API-5CT Certificate pek a ni

 

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