Turbine Blade: Gutera Ibikoresho, Ubworoherane hamwe nibisabwa byo gutunganya neza 

Turbine ikora munsi yubushyuhe bukabije bwa gazi yubushyuhe bukabije, guhagarika ubushyuhe bwumuriro, hamwe nibitangazamakuru byangirika, bigatuma biba kimwe mubintu bitoroshye byo gutondeka neza mubikorwa byingufu. Amatsinda menshi yo gutanga amasoko nubwubatsi ahura ningorabahizi zumusaruro mugihe zishakisha ibyuma bya turbine: ikirere cyo mu kirere gifite uruzitiro runini rugabanuka no kugabanuka, imiyoboro ikonjesha imbere iganisha kumeneka yibanze, kandi ibikoresho bya superalloy bitera imashini zikomeye kandi zikomeye zo kwihanganira ibibazo.

Aka gatabo gakubiyemo guhitamo ibikoresho, guhitamo uburyo bwo gushora imari, kugenzura imiyoboro ikonjesha, imipaka yo kwihanganira ibipimo, inzira zogukora neza, hamwe namategeko yuzuye ya NDT yo kugenzura ibyuma bya turbine. Ireba ibishushanyo mbonera bishingiye ku gukora ibyuma, bigufasha kugabanya ibicapo, kugenzura amafaranga yo gutunganya, no kwirinda gukora amafaranga menshi kubice birwanya ubushyuhe bwinshi kandi birwanya ruswa.

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Turbine ikora munsi yubushyuhe bukabije, gusiganwa ku magare, hamwe na sulfide. Icyiciro cya mbere cya gaz turbine gishobora gukomeza serivisi ndende hejuru ya 900 ° C. Kwiyongera kwubushyuhe bwumuriro no kwikuramo bitera guhindagurika kwimiterere hamwe numunaniro wumuriro.

Uburinganire bwa geometrike butera cyane ingorane zo gukora:

• Ubunini bwurukuta rwa airfoil (akenshi munsi ya mm 1) butera ibishishwa bidashongeshejwe byuzura no gukomera kutaringaniye.
• Ibice bikomeye byo gukonjesha imbere bisaba gushiramo ceramic cores, zihinduranya byoroshye cyangwa kuvunika mugihe cyo gusuka.
• Ubuso bugoye bwubusa bugoramye ntibushobora kubyazwa umusaruro usanzwe. Gusa vacuum precision casting irashobora gutanga hafi-net-shusho yo guta.
• Nickel ishingiye kuri superalloys yerekana akazi gakonje gakomeye. Ibi byihutisha kwambara ibikoresho kandi bigahindura ukuri kwukuri mugihe cyo gutunganya CNC.

Ingingo nyamukuru yububabare bukora harimo gutera akabariro, gukuramo ibice, kugoreka umwirondoro, guhinduranya imashini, hamwe no gukonjesha kwa firime yujuje ibyangombwa.

2. Guhitamo Ubushyuhe Bwinshi Bwinshi Bwatoranijwe Kubikoresho bya Turbine

Guhitamo superalloy ibereye niyo shingiro ryubuzima burebure. Urwego rwibikoresho rugomba guhura nubushyuhe bwo gukora, ibidukikije byangirika, hamwe nibisabwa byo guhangana. Iki gice cyibanze kumurongo nyamukuru nikel-ishingiye kuri superalloys ikoreshwa cyane shiramo turbine.

2.1 Ibyiciro byingenzi bya Superalloy ya Turbine

• Inconel 718 (UNS N07718)
  Ubushyuhe bwa serivisi bukomeza kugera kuri 700 ° C, hamwe nimbaraga zidasanzwe kandi zikora neza. Ikoreshwa cyane mubushyuhe bwo hagati nubushyuhe bwo hagati ya turbine hamwe na compressor blade, bitanga imbaraga nziza zo kurwanya gaze ikarishye no kwangirika.
• Inconel 625 (UNS N06625)
  Kurwanya cyane kwangiza no gutobora, byujuje ubuziranenge bwa NACE MR0175. Ikora neza kugeza kuri 650 ° C kandi ikwiranye nicyuma gihumeka neza.
• Rene 80
  Igikoresho gisanzwe kiringaniye hamwe nubushyuhe buringaniye bwubushyuhe bwo hejuru hamwe na okiside irwanya okiside, yagenewe ibyuma byo hagati ya turbine yo hagati ikora munsi ya 950 ° C.
• CMSX-4 (Alloy-Crystal Alloy)
  Urwego rwo hejuru rwikurikiranya rwirwanya HPHT icyiciro cya mbere. Serivise ihoraho irashobora kugera kuri 1150 ° C nta kuruhuka kugaragara. Gukomera kwicyerekezo bivanaho imipaka kugirango habeho ubushyuhe bwo hejuru.

2.2 Amategeko yo gutoranya ibikoresho ashingiye kubidukikije

1. Umwuka wa gaz usharira hamwe n’amazi yo mu nyanja: Hitamo Inconel 625 kugirango irwanye ruswa (ibice birwanya ruswa).
2. Ubushyuhe bwo hagati yubushyuhe bwo kubyara turbine (≤700 ° C): Inconel 718 nuburyo buhendutse hamwe nuburyo bukoreshwa neza hamwe nubukanishi.
3. Ubushyuhe bwo hejuru bwa gaz turbine ishyushye-ibice bishyushye (950–1150 ° C): Kwemeza Rene 80 kuringaniza cyangwa CMSX-4 icyerekezo kimwe cyo korohereza icyerekezo cyo kurwanya anti-creep.
4. Irinde amanota arenze urugero: Amavuta-kristu avanze azana amafaranga menshi yo gukina; gusa ubikoreshe kumwanya wo hejuru wubushyuhe.

Mugihe hagitegerejwe kugenzurwa: Nukuri ibipimo bya ASTM, igipimo cya NACE cyangirika hamwe namakuru maremare yo guturika kumurongo kuri buri cyiciro cya alloy.

3. Igenzura ryishoramari risobanutse Kugenzura Turbine

Gukina neza (gushora imari / guta-ibishashara) nubuhanga bwonyine bukuze bwo gukora ibyuma bya turbine bidafite imiyoboro ikonje. Igenzura ribi rizaganisha ku kugabanuka kwinshi, kwimura intangiriro, no kugoreka umwirondoro.

3.1 Ingorane zingenzi muburyo bwo gushora imari

1. Kuzuza urukuta ruto: Molten superalloy irakomera vuba. Ibice bito bya airfoil bikunda gukora ubukonje no kuzura bituzuye.
2. Ceramic core stabilite: Cores yashyizwemo kumeneka cyangwa guhinduranya munsi yubushyuhe bwo hejuru bwicyuma, bikaviramo guhagarika cyangwa guhagarika gukonjesha.
3. Kugabanuka gukomeye: Gukonjesha kutaringaniye bitera gutandukana kwinshi no kugabanuka imbere.
4. Kugenzura imiterere yintete: Ibinyampeke bingana bikora byoroshye nta gukomera kwicyerekezo, bigabanya ubuzima bwubushyuhe bwo hejuru.

3.2 Igenzura ryibikorwa bya hafi-Net-Shusho

• Gushonga Vacuum & gusuka: Shonga nikel superalloys munsi yumuvu mwinshi kugirango ugabanye umwuka wa ogisijeni kandi wirinde inenge zirimo okiside. Shyushya ibumba ryibumba kugeza kuri 900–1100 ° C kugirango utezimbere icyuma gishongeshejwe.
• Igenzura rikomeye: Shiraho igipimo gikonjesha (10-50 ° C / min igipimo cyo gukonjesha) kugirango ukore ibinyampeke cyangwa inkingi imwe ya kirisiti, biteza imbere cyane ubushyuhe bwo hejuru bwikigereranyo.
• HIP ishyushye isostatike.
• Ibishashara bigabanya indishyi.

3.3 Gutera ubworoherane bwibanze kuri Turbine

Gutera kwihanganira ubusa bikurikiza ISO 8062 na VDG P690. Kubushoramari-turbine blade yo guta:

• Ikirere cya Airfoil gutandukana: ± 0,30 mm nyuma yo kugabanuka kwindishyi.
• Basabwe amafaranga yo gutunganya icyarimwe: 0.3-1.5 mm; indamunite ndende yabitswe kumurongo wahinduwe nicyuma.
• Uburebure bwurukuta rwihanganira ibyuma: ± 0,15 mm kubice bikikijwe.

Mugihe hagitegerejwe kugenzurwa: Impamyabumenyi yuzuye ya VDG P690 hamwe nindangagaciro zamafaranga yo gutunganya kubunini butandukanye.

4. Gutera Ibisabwa Kubyuma Byimbere Byimbere

Icyuma cya turbine gishingiye ku miyoboro ikonjesha imbere kugirango igabanye ubushyuhe. Ubwiza bwibice bikonjesha bugaragaza neza imikorere ya turbine yubushyuhe, kandi inganda yibanze ihitamo niba imiterere yimbere ishobora gukorwa rwose.

4.1 Imiyoboro isanzwe ikonjesha Igishushanyo & Imipaka ntarengwa

Ubusanzwe uburyo bwo gukonjesha burimo inzoka nyinshi zinyura munzira, kuyobora-impingement gukonjesha gukonjesha, gukurikira-impande zifunganye, hamwe na pin-fin.

Imipaka ntarengwa yo gukina:

• Nibura byibuze byubatswe kurukuta hamwe na ceramic yujuje ibyangombwa hamwe no gusuka vacuum: 0.5 mm. Agaciro katerwa nubunini bwubwoko nubwoko bwa alloy.
• Ingano ntoya yibanze: 0,5 mm diametero ya firime ntoya yo gukonjesha; birenze urugero ingirabuzimafatizo zizavunika mugihe cyo gusuka.
• Ibice bigufi bisaba imbaraga zingirakamaro hamwe no kwagura ubushyuhe buke kugirango wirinde guhinduka munsi yubushyuhe bwinshi.

4.2 Ibihimbano Byibanze & Ingamba zo Kurwanya Kumena

Alumina ishingiye kuri ceramic cores niyo nzira nyamukuru yo guhitamo turbine blade ishoramari. Ibisabwa byingenzi:

1. Kurwanya cyane: Kurwanya ubushyuhe buri hejuru ya 1500 ° C utaruhije mugihe cyo gusuka amavuta.
2. Coefficient yo kwagura ubushyuhe buke (munsi ya 4 × 10⁻⁶ / K) kugirango wirinde guhagarika ubushyuhe bwumuriro no kugabanuka.
3. Imbaraga zingana (> 15 MPa) hamwe nuburyo bwiza bwo gukuraho imiti nyuma yo guta imiti.

Ibisubizo by'ingenzi birwanya kuvunika:

• Ongeramo imbavu zifasha kumurongo muremure kandi unanutse kugirango urwanye ingaruka zicyuma.
• Huza coefficente yo kwagura ubushyuhe hagati yubutaka bwa ceramic na superalloy kugirango wirinde kwaguka kwubushyuhe budahuye.
• Igenzura ingirakamaro yo kugabanuka munsi ya 5% kugirango ugumane imiyoboro yimbere imbere.

5. Gahunda yo Gutunganya neza Kworoherana & Gahunda yo Gutunganya

Ndetse hafi-net-shusho-y-ishoramari yo guta ibisabwa bisaba 5-axis CNC ikora neza kugirango yujuje ibyerekeranye nindege hamwe nibisabwa kwihanganira inteko. Imashini ya Superalloy ifite akazi gakomeye, igomba kugenzurwa hamwe nibikoresho byiza byo gukata.

5.1 Ibisabwa byo kwihanganira ibipimo byingenzi byingenzi

1. Ubuso bwa Airfoil: Kwihanganira umwirondoro wa GD&T ± 0.02 ~ 0,05 mm; uburinganire bwubutaka Ra 0.8-1,6 mm kugirango ugabanye igihombo cyumuyaga.
2. Imizi y'ibiti: Kwihanganirana guterana hejuru ± 0.015 mm; kurangiza kurangiza Ra 0.2–0.8 μ m kugirango wirinde umunaniro wo guhura munsi yumutwaro wikizamini.
3. Ubuso bwa kashe: Kwihanganira uburinganire muri mm 0,02; kugenzura neza birinda gaze gusohoka hagati yumurongo wicyuma.
4. Gukonjesha firime: Kwihanganira imyanya ± 0.03 mm; kwihanganira umwobo wa diameter ± 0,02 mm, ahanini bitunganywa na EDM ikora amashanyarazi.

5.2 Gutunganya Inzira & Guhitamo Ibikoresho

Igikorwa gisanzwe cyo gutunganya ibyuma bya turbine:

1. Kuvura nyuma ya casting: Gukuraho ibishishwa, gutobora intoki, guturika kurasa, no gukomera kwa HIP.
2. Gukora imashini itajenjetse: Kuraho amafaranga menshi yo gukina hamwe na karbide isize, kubika 0.2–0.4 mm igice cyo kurangiza.
3. Kurangiza igice: 5-axis ihuza gusya hejuru ya airfoil igoramye hejuru, kugenzura imikorere yimashini iterwa no guca ubushyuhe.
4. Kurangiza: Gusya byihuse cyangwa gusya hejuru kugirango ugere kumurongo wanyuma wihanganira hamwe no gukomera.
5. Gukora icyiciro cya kabiri: EDM itobora utuntu duto two gukonjesha firime ku cyuma kiyobora kandi gikurikira.

Gutunganya inama za superalloys:

• Koresha umuvuduko muke kugirango ugabanye akazi; komeza igipimo cyibiryo murwego rwo hejuru kugirango ugabanye hejuru yubutaka bukomeye.
• Irinde gusubiramo inshuro zidakabije zirangiza gusa uruhu rukomeye kandi byihutisha kwambara.

5.3 Igenzura ry'amafaranga yo kugabanya igipimo cy'ibisigazwa

Kwirinda guhindura ibintu ntibishobora kwirindwa, bityo amafaranga yimashini ataringaniye agomba gutekerezwa mugihe washyizeho ingano yubusa:

• Ongera amafaranga yo gutunganya kuri 0.3–0.5 mm kumutwe wicyuma, kuruhande rukurikira hamwe nuduce dukikijwe nudukuta twinshi.
• Koresha 3D ubururu-urumuri rusikana kugirango upime ibintu bifatika mbere yo gutunganya, hanyuma uhindure gahunda ya CNC kugirango wishyure gutandukana kwaho.

6. NDT & Ubuziranenge bwubugenzuzi bwa Cast Turbine Blade

Sisitemu yuzuye yubugenzuzi ikubiyemo kugenzura ibintu, gupima ibipimo, gupima kutangiza, no kugenzura ubuziranenge bwubutaka, bikaba itegeko kubice birwanya ubushyuhe bwo hejuru bikoreshwa muri turbine.

6.1 Ibizamini bidasenya (NDT) Ibintu

1. Kwipimisha Radiyo (Kugenzura RT / X-ray): Kugenzura 100% kugirango umenye kugabanuka kwimbere imbere, gushiramo no gukonjesha gukonje imbere muri blade airfoil numuzi.
2. Kwipimisha Ultrasonic (UT): Reba ibice byumuzi wibice byimbitse imbere X-ray idashobora kumenya.
3. Kwipimisha Kwinjira (PT): Kugenzura hejuru yicyuma cyose kuri micro-crack, cyane cyane kumpera ya airfoil no kuzuza imizi.
4. Inganda CT gusikana: Kugenzura ubusugire bwibice byo gukonjesha imbere, menya ibisigisigi byibanze hamwe no guhagarika firime ikonje idashobora kuboneka nubundi buryo bwa NDT.

Mugihe hagitegerejwe kugenzurwa: Ikirere cya NADCAP ikirere NDT hamwe n amanota yo kwemerera inenge ya turbine blade.

6.2 Kugenzura Ibipimo & Ubuso

• CMM (Guhuza imashini ipima): Igipimo cyuzuye cya 3D cyerekana umwirondoro wa airfoil, ubunini bwumuzi wicyuma hamwe nubukonje bwa firime ikonje hamwe nibipimo bigera kuri ± 0.002 mm.
• Gusikana neza: Gereranya imiterere nyayo nicyuma cya CAD kugirango ugereranye gutandukana kwumwirondoro.
• Ikizamini cyo hejuru: Kugenzura indangagaciro za Ra kuri airfoil, imizi no gufunga hejuru.
• Igenzura ryibyuma: Reba imiterere y'ibinyampeke kugirango wemeze uburinganire / icyerekezo gikomeye / ubwiza bwa kristu imwe.

7. Ibibazo Bikunze Kubazwa

Q1: Ese ibisanzwe bisanzwe bivanze bishobora gusimbuza icyuma kimwe cya kirisiti ya serivisi ya HPHT?
Igisubizo: Oya. CMSX-4 imwe ikuraho imipaka yimbuto kandi ikagumya guhagarara neza hejuru ya 1000 ° C, idasimburwa nicyiciro cya mbere gishyushye.

Q2: Nubunini buke bwurukuta rushobora guterwa kugirango ukonje umuyoboro wa turbine?
Igisubizo: Hamwe na alumina ceramic ceramic-isukuye cyane hamwe no gusuka vacuum, ubugari ntarengwa bwo guteramo urukuta ni 0.5 mm. Iyi mipaka iratandukanye na blade geometrie no guhitamo amavuta. Urukuta ruto ruzaganisha ku kuzura kutuzuye hamwe nigipimo kinini.

Q3: Amafaranga angahe yo gutunganya agomba guteganyirizwa gushora imari?
Igisubizo: Amafaranga y'ibanze atabogamye ni 0.3-1.5 mm. Ongera amafaranga kuri mm 0.3–0.5 mm kubice bifite imiterere nini ya casting nkinama zicyuma hamwe nimpande zikurikira kugirango wirinde kubura ibikoresho byaho mugihe cyo gutunganya.

Q4: Ni ubuhe buryo bwo kugenzura bushobora kumenya imbere imbere ibice bikonje?
Igisubizo: Gusikana inganda CT nuburyo bwizewe bwo kugenzura imiyoboro ikonjesha imbere, ibisigara byibanze hamwe nuburebure bwurukuta rutaringaniye. X-ray irashobora gusa kumenya ibibujijwe binini, mugihe ibisigisigi bito byibanze bishobora kumenyekana gusa na CT scanning.

8. Umwanzuro & Intambwe Zikurikira

Gukora ibyuma byujuje ibyangombwa bya turbine bisaba kugenzura neza guhitamo ibikoresho, gutondeka neza, gukonjesha ingirakamaro, gukora 5-axis no kugenzura NDT yuzuye.

1. Huza amanota ya superalloy hamwe nubushyuhe bwo gukora nibitangazamakuru byangirika; hitamo Inconel 718/625 kubushyuhe bwo hagati yubushyuhe bwo kwangirika, hamwe nicyerekezo / kimwe-kristu ivanze kubushyuhe bwo hejuru bwa HPHT.
2. Emera ishoramari rya vacuum hamwe no gukomera hamwe no kuvura HIP kugirango ugabanye ubukana bwimbere hamwe no guhindura ibintu.
3. Shushanya ceramic cores hamwe nubushyuhe buke bwumuriro nimbaraga zihagije kugirango wirinde kumeneka kwibanze no kwemeza uburyo bwuzuye bwo gukonjesha imbere.
4. Wibike amafaranga yimashini ikwiye ukurikije casting deformation; koresha 5-axis CNC na EDM kugirango ugenzure kwihanganira umwirondoro no gukonjesha firime neza.
5. Shyira mubikorwa RT, UT, PT na CT ibizamini bidasenya wongeyeho ubugenzuzi bwa CMM kugirango wizere ubuziranenge.

Niba ufite ibishushanyo bya turbine 2D / 3D kandi ukeneye gusuzuma ibikoresho, gutegura gahunda yo gukina, gusesengura imashini yihanganira cyangwa gutondekanya ibicuruzwa kugirango ushireho ibyuma bya turbine, urashobora gutanga ibisobanuro bya tekiniki kugirango bisuzumwe neza.