Ntuziaka ihe eji eme ihe mgbanaka oche maka Valve & Industrial Control Valve 

Oche valvụ na mgbanaka oche bụ isi ihe na-emechi valves na valvụ njikwa ụlọ ọrụ. Nhọrọ ihe na-ezighi ezi na-eduga na mbuze na-akabeghị aka, mmebi cavitation, nchara nchara na nhịahụ dị n'ime ya na-aga n'ihu, nke na-ebute nkwụsịtụ pipeline na-enweghị atụmatụ na ụgwọ ọrụ dị elu. Ntuziaka a na-ekpuchi usoro oche valvụ, ụdị ọdịda ọdịda a na-ahụkarị, ntụnyere ihe n'etiti igwe anaghị agba nchara na Stelite alloys, ụkpụrụ ntinye ntinye ego na ihe ndị chọrọ n'elu, na-enyere ndị injinia na ndị na-azụ ahịa aka ịhọrọ oche valvụ ziri ezi, mgbanaka oche na ntinye valve maka mmanụ & gas, kemịkalụ na ọrụ uzuoku.

1. Nchịkọta nke Valve Seat & oche oche na Check Valves

1.1 Nkọwa na Ọdịiche Ọdịdị

Nkebi a na-aza: Kedu ihe dị iche n'etiti oche valve, mgbanaka oche na ntinye valve? Kedu ọrụ akụkụ ndị a na-arụ na nlele valve akara?

• oche Valve: The ofu sealing base agbakwunyere ma ọ bụ pịa n'ime valvụ ahụ, nke na-etolite kọntaktị akara mbụ na diski valvụ ma ọ bụ bọọlụ.
• Mgbanaka oche (elele mgbanaka valvụ): Ihe ntinye mgbanaka nwere ike dochie anya n'elu oche oche; ọ na-eje ozi dị ka ihe mkpuchi mkpuchi ihe ịchụàjà iji chebe ahụ valvụ pụọ na iyi.
• Ntinye Valve: A warara akara band machined na oche mgbanaka, na-emekarị hardface na Stelite alloy maka oké ọrụ.

valvụ nlele na-atụgharị ma bulie valvụ nlele nlele ịmụta dị iche iche oche Ọdịdị. valvụ ndị na-ebuli elu nwere eriri oche dị larịị ma dị warara, ebe valvụ nlele na-atụgharị na-eji ihu oche nwere ụdị arc sara mbara. All metal-to-metal sealing arụmọrụ na-adabere kpamkpam na ihe onwunwe mma na machining nkenke akụkụ atọ a.

1.2 Nsonaazụ nke ọdịda oche

Ozugbo oghere mkpuchi oche mebiri emebi, valvụ ahụ enweghị ike igbochi nlọghachi azụ nke ọma. Nsonaazụ ndị a na-ahụkarị gụnyere ntapu ọkara na-aga n'ihu, mbelata nrụgide nwayọọ nwayọọ, na ndochi valvụ zuru oke n'ime ọnwa karịa afọ.

2. Ụdị ọdịda a na-ahụkarị nke oche Valve & mgbanaka oche

Akụkụ a na-akọwa naanị usoro ọdịda na-ewebata ngwọta ihe.

2.1 eyi nbibi (Mbipụta akụkụ & ịse waya)

Mmiri dị elu na-ebu ihe siri ike na-egbutu oghere ahịrị na ihu akara. A maara ihe a dị ka ịse waya, ọ na-emekarịkwa na uzuoku dị elu na pipeline slurry. Ihe ndị siri ike siri ike na-emepụta ihe abrasive mmetụta eyi, jiri nwayọọ nwayọọ wepụ ihe sitere na eriri oche.

2.2 Mmebi cavitation (ọkụ na-egbuke egbuke & afụ dara)

Mgbe ọ̀tụ̀tụ̀ mmiri mmiri na-adaba n'okpuru nrụgide vapor, mmiri mmiri na-enwu n'ime afụ vapo. Afụ ndị a na-ada n'ike mgbe nrụgide na-agbake, na-eme ka ebili mmiri dị elu na-eme ka ọkpụkpụ na-emebi olulu n'elu oche ígwè. Cavitation juru ebe niile na valvụ nchịkwa na-atụgharị na valvụ nlele nrụgide dị elu.

2.3 Galling & Nrapado Yiri na Mkpuchi Metal

Mgbe elu igwe abụọ enweghị oghere mepere emepe ma mechie n'okpuru nrụgide kọntaktị dị elu, ịgbado ọkụ oyi na-apụta n'etiti ebe kọntaktị. Ihe na-adọkapụ n'otu elu wee rapara na ihu mating, na-eme mmebi ọdịdọ na-adịgide adịgide. Otu ụzọ igwe anaghị agba nchara na-enwekarị mmasị n'ịgba galling na-enweghị ọgwụgwọ siri ike.

3. Main Metal Materials for Check Valve Seat & Seat ring

3.1 316L igwe anaghị agba nchara (CF3M/F316L) - Ọrụ mmebi iwu n'ozuzu

• Isi ike: Ihe dị ka 25 HRC n'ọnọdụ annealed.
• Uru: Nguzogide magburu onwe ya na corrosion izugbe na chloride corrosion; ọnụ ala; mfe itinye ego nkedo na machining.
• Mgbochi: Nguzogide na-eyi adịghị mma; enweghị ike iguzogide mbuze, cavitation ma ọ bụ galling n'okpuru nrụgide dị elu.
• Ọrụ kwesịrị ekwesị: Mmiri dị ọcha, mmiri mmiri na-emebi emebi, obere ikuku ikuku na-enweghị ihe siri ike.

3.2 420 Martensitic igwe anaghị agba nchara – Ọkara eyi ọrụ

• Isi ike: 38-42 HRC mgbe emenyụchara na iwe ọkụ.
• Uru: Ike siri ike karịa 316L; mma mgbochi-eyi arụmọrụ; ọnụ maka ọrụ ọkara ọrụ.
• Oke: oke cavitation mgbochi; Ọ ka na-enwekarị agụụ mgbe ejikọtara ya na ihu igwe anaghị agba nchara 420 ọzọ.
• Ọrụ kwesịrị ekwesị: Mmiri mmiri na-adịghị ala ala na-adịghị emerụ ahụ, valvụ nlele na-agbanyụ obere okirikiri.

3.3 Stelite Alloys (Stellite 6 / Stelite 12) - Ọrụ Mgbochi & Cavitation siri ike

Stelite bụ cobalt-chromium-tungsten alloy A na-ejikarị ya dị ka ihe mkpuchi siri ike na igwe anaghị agba nchara oche substrates.

Stelite 6 (Ọkọlọtọ ụlọ ọrụ)

• Isi ike: 36–45 HRC mgbe ịgbado ọkụ machie.
• Ọrụ dị mkpa: Nguzogide pụtara ìhè na cavitation, mbuze na galling ígwè; na-ejigide ike siri ike ruo 500ºC ọrụ uzuoku dị elu.
• Ngwa: Uzuoku dị elu, slurry na-agafeghị oke, valvụ na-enyocha valvụ dị elu na njikwa valve.

Stelite 12 (ọkwa dị elu)

• Isi ike: 45-53 HRC nwere ọdịnaya carbon dị elu.
• Azụmahịa-apụ: Nguzogide abrasion dị elu mana ike siri ike karịa Stelite 6; na-adịkarị mfe mgbawa n'okpuru mmetụta dị arọ.
• Ngwa: Ọdịda slurry siri ike na oke mbuze.

4. Isi Nrụpụta & Machining chọrọ

4.1 Isi ihe ntinye ntinye ego maka ntinye oche oche Valve

A na-emepụta ọtụtụ mgbanaka oche valvụ na ntinye site na silica sol itinye ego nkedo, karịsịa maka 316L na Stelite alloy components.

• Njikwa mbelata porosity na-ekpo ọkụ na-adọka n'akụkụ eriri akara site na ịkwalite nhazi gating na oyi oyi; zere nkedo nkedo n'elu akara akara dị oke mkpa.
• Wepu ihe fọdụrụ nke seramiiki nke ọma tupu ị rụọ ọrụ; ájá fọdụrụnụ ga-eme ka ọ na-aka nká mgbe a na-arọ ara.
• Tinye ọgwụgwọ okpomọkụ enyemaka nchekasị mgbe nkedo gasịrị iji gbochie nrụrụ akụkụ n'okpuru mgbanwe okpomọkụ cyclic.
• Nyocha NDT: Mee nnwale penetrant (PT) na nyocha redio (RT) na mgbanaka oche emechara iji chọpụta mbelata nke ime na mgbawa elu.

4.2 Ọkọlọtọ esiri ike maka mkpuchi ihu

• oche igwe anaghị agba nchara ga-ezute oke ike siri ike; ihu diski mating kwesịrị inwe ọdịiche siri ike nke opekata mpe 5 HRC iji belata ihe egwu galling.
• A na-achịkwa ọkpụrụkpụ stellite hardfacing machie na 2-4 mm mgbe emechara machining; A ga-anwale ike siri ike ozugbo na eriri mkpuchi nwere ihu siri ike, ọ bụghị na mkpụrụ igwe anaghị agba nchara.
• Ọrụ mmanụ na mmanụ utoojoo (NACE MR0175): Oke ike na-emetụta iji zere mgbawa nrụgide sulfide; Stelite 6 tozuru oke maka ọrụ gas na-acha utoojoo na njikwa ike ike kwesịrị ekwesị.

4.3 Ngwucha elu & ihe achọrọ maka oche ọla

Ọdịiche dị n'elu na-emetụta njedebe akara na ndụ ọrụ.

• Otu oche igwe eji arụ ọrụ: Ra 0.8 – 1.6 μm maka valvụ nlele nlegharị anya igwe n'ozuzu.
• Ihu akara akara maka Klas V/VI efu-leakage shutoff (na nhazi ọkwa valvụ API kwa): Ra 0.2–0.8 μm nwere ịdị larịị na-achịkwa n'ime eriri ọkụ 2 (0.0005 mm).
• Zenarị mgbịrịgba bead ma ọ bụ daa ụda mgbe arụchara ọrụ ikpeazụ; mgbawa na-emepụta udidi elu na-enweghị isi ma na-ebelata ndụ oche.
• Ọ bụ iwu na ị ga-apịpụta nkenke Stellite Valve Ball na oche mating ụzọ abụọ iji nweta kọntaktị otu n'ofe obosara oche zuru oke.

5. Ụkpụrụ nhọrọ ihe onwunwe site na ọnọdụ ọrụ

Isiakwụkwọ a na-ewepụta iwu nhọrọ nke enwere ike ime na-enweghị ikwugharị data arụmọrụ ihe zuru oke.

5.1 Ọkara dị ọcha & Corrosion dị nro

Ọkara: Mmiri dị ọcha, hydrocarbon dị ọcha na-ekpo ọkụ, gas dị ala na-enweghị ihe siri ike.
Ihe akwadoro: 316L igwe anaghị agba nchara oche valvụ na mgbanaka oche. Ọ nweghị ihe nrụpụta Stelite achọrọ iji chịkwaa ọnụ ahịa ịzụrụ.

5.2 Ụkwụ na-akpata nrụgide dị elu na mmiri na-ekpo ọkụ

Ọkara: Uzuoku juru na nke kpụ ọkụ n'ọnụ, mmiri mmiri nwere oke siri ike dị nro, ọsọ ọsọ dị elu.
Ihe akwadoro: 316L mkpụrụ na Stellite 6 hardfacing na akara akara, iji guzogide mbibi ịse waya na oxidation dị elu.

5.3 Cavitation & Ọrụ ọkụ

Ọkara: Nrụgide nrụgide dị iche iche dị elu, mmiri mmiri na-egbuke egbuke, ọdịda afụ ugboro ugboro.
Ihe akwadoro: Stelite 6 ihe ntinye oche machie; Alloy dabeere na cobalt na-enye ezigbo nguzogide cavitation karịa martensitic igwe anaghị agba nchara.

5.4 Ọrụ mmanụ na gas (Mgbochi NACE MR0175)

Ọkara: H₂ S-nwere utoojoo crude na eke gas.
Iwu isi: ike njikwa oche n'okpuru oke oke nke NACE akọwapụtara; Stelite 6 hardfacing na-ezute ụkpụrụ NACE MR0175 / ISO 15156 maka nguzogide nrụgide sulfide. Zenarị ihe mkpuchi weld siri ike na-achịkwaghị achịkwa.

6. Ajụjụ A na-ajụkarị

6.1 Stelite Valve oche vs 316L: Kedu nke nwere ndụ ọrụ ogologo oge?

Oche Stelite nwere ihu siri ike na-enye ndụ ọrụ ogologo oge karịa oche 316L efu n'okpuru uzuoku, cavitation na ọnọdụ mkparị. Maka ọrụ nrụgide dị ala dị ọcha, 316L na-enye ndụ zuru oke na ọnụ ala dị ala.

6.2 Enwere ike iji Stelite Hardfacing na Ọrụ Gas Sour?

Ee. Stelite 6 na-akwado NACE MR0175 / ISO 15156 mgbe a na-achịkwa weld ike nke ọma, na-eme ka ọ bụrụ ihe eji eme ihe maka mmanụ utoojoo na valvụ nlele gas.

6.3 Kedu ihe isi ike achọrọ maka mgbanaka oche oche Valve?

• 316L oche siri ike: 22-28 HRC (steeti annealed).
• 420 igwe anaghị agba nchara oche: 38-42 HRC mgbe okpomọkụ ọgwụgwọ.
• Stelite 6 oche nwere ihu siri ike: 36–45 HRC tụrụ n'elu elu.

7. Mmechi & nchịkọta nhọrọ

Ụkpụrụ bụ isi maka oche valvụ na nhọrọ ihe mgbanaka oche bụ dakọtara arụmọrụ alloy na ọnọdụ ọdịda kachasị:

1. Maka pipeline dị ọcha, obere corrosion: Họrọ 316L igwe anaghị agba nchara valvụ ntinye na mgbanaka oche iji chekwaa ọnụ ahịa.
2. N'ihi elu-nrụgide uzuoku, urughuru ozize na cavitation: Ezipụta Stelite 6 hardfacing na 316L substrates.
3. Maka ọrụ gas utoojoo: Soro oke ike ike NACE MR0175 wee họrọ ihe mkpuchi Stelite tozuru oke.
4. Nyochaa mgbe niile ịdị mma nkedo, imecha elu na mkpuchi ihu ike siri ike tupu nnabata.

Mgbe ị na-enyocha oche valvụ omenala, mgbanaka oche na Stellite Valve Ball na oche oche maka sistemụ mmiri mmepụta ihe, kwado usoro nkedo, nkọwapụta siri ike na ụkpụrụ lapping na ndị na-ebu akụrụngwa gị iji zere ọdịda akara akaghi aka.