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Patlisiso ho Ni-Si Alloy Slender Shaft Turning Technology

2021-08-14

Patlisiso ho Ni-Si Alloy Slender Shaft Turning Technology


Nickel-silicon alloy ke motsoako o tloaelehileng oa mocheso o phahameng. Ke ntho e thata ho sebetsa 'me e sebelisoa haholo sebakeng sa lifofane, lifofane le masimo a mang. Ho itšeha ha eona ke ntlha e thata ho theknoloji ea morao-rao ea machining. Ho kopanya litšobotsi tsa lisebelisoa tsa nickel-silicon alloy, ho nka mabitso a k'hamphani ea nickel-silicon alloy e le mohlala, ho ithutile theknoloji ea ho fetola lisebelisoa, 'me theknoloji e itseng ea mocheso e phahameng ea mocheso e boloketsoe seboka, se nang le lintlha tse itseng. boleng ba kopo.


Patlisiso ho Ni-Si Alloy Slender Shaft Turning Technology
Patlisiso ho Ni-Si Alloy Slender Shaft Turning Technology. - PTJ CNC mochini Shop

1. Selelekela

Li-alloys tse nang le mocheso o phahameng li boetse li bitsoa li-alloys tse thibelang mocheso kapa li-alloys tse matlafatsang mocheso. Ke motsoako o rarahaneng oa likarolo tse ngata o thehiloeng holim'a tšepe, nickel, cobalt, titanium, joalo-joalo, 'me o ka sebetsa tlas'a tikoloho ea mocheso o phahameng oa oxidation le maemo a khase a 600 ~ 1000 ℃. Ho feta moo, e ka sebetsa nako e telele tlas'a khatello e itseng, 'me e na le matla a matla a mocheso, botsitso ba mocheso le ts'ebetso ea mokhathala oa mocheso.

Leha ho le joalo, li-alloys tse nang le mocheso o phahameng ke lisebelisoa tse tloaelehileng tse thata ho seha, tse thata ho feta 250HBS, matla σb>0.98GPa, elongation δ>30%, boleng ba phello ak>9.8×105J/m2, conductivity ea mocheso k<41.9W/ (m2℃), Ho hanyetsa mocheso o phahameng ka ho toba ho eketsa bothata ba ho sebetsa. Tlas'a ketso e kopantsoeng ea matla a maholo a ho itšeha le mocheso o phahameng nakong ea ts'ebetso, sesebelisoa se hlahisa likhechana kapa deformation, ebe se senya; Ho phaella moo, mofuta ona oa motsoako o tla potlakela ho hlahisa ts'ebetso e thata ea mosebetsi, 'me workpiece e tla hlahisoa nakong ea ts'ebetso. Sebaka se thata sa sesebelisoa se tla etsa hore ho itšeha ha sesebelisoa ho hlahise likheo ka botebo ba sehiloeng, 'me ho baka khatello e sa rateheng holim'a workpiece, le ho senya ho nepahala ha geometri ea likarolo tse entsoeng.

2. Tlhahlobo ea boemo ba hona joale

Litsebi tsa linaha tse ling li entse lipatlisiso tse ngata mabapi le ho seha li-superalloy. Ka 1939, Khamphani ea Brithani ea Mond Nickel (Khampani ea Machaba ea Nickel) e ile ea qala ho hlahisa motsoako oa nickel Nimonic 75, 'me Nimonic 80 e ile ea sebelisoa ka katleho ho lisebelisoa tsa lehare la lienjine tsa turbojet, ho etsa letoto la alloy la Nimonic. Mathoasong a 1940, United States e ile ea hlahisa motsoako oa nickel oa Hastelloy B hore o sebelisoe enjeneng ea jete ea GE's Belp-59. Ka 1950, American PW Company, GE Company le Special Metal Company e ile ea hlahisa li-alloys tsa Waspalloy, M-252 le Udmit 500 ka ho latellana, 'me tsa theha limaraka tsa Inconel, Mar-M le Udmit motheong ona, tse sebelisoang haholo ka li-blade tsa turbine. . Ho tloha ka 1940 ho isa bohareng ba 1950, sebopeho sa alloy se ile sa fetoloa. 1950: Ho hlaha ha theknoloji ea ho qhibiliha ha vacuum ho ile ha etsa hore ho be le palo e kholo ea li-superalloys tse phahameng tse kang Mar-M200 le Ka 100. Ka mor'a 1960, tsoelo-pele ea mekhoa e mecha e kang ho tiisa tataiso, li-alloys tse le 'ngoe tsa kristale, metallurgy ea phofo, alloying ea mechine, le ceramic filtration isothermal betloa li fetohile matla a ka sehloohong a ho khanna bakeng sa ntshetsopele ea li-superalloys. Ka ho tšoanang, litsebi tsa malapeng le tsona li entse lipatlisiso tse ngata. Ho tloha 1956 ho isa 1957, GH3030, GH4033, GH34 le K412 li-alloys li ile tsa hlahisoa ka katleho bakeng sa lienjineri tsa WP-5; ka 1960, GH4037, GH3039, GH3044, GH4049, GH3128, K417 le li-alloys tse ling li ile tsa hlahisoa ka ho latellana. E ntlafalitsoe ka katleho; hape ka tatellano e ile ea theha sehlopha sa li-superalloy bakeng sa lienjineri tse fapaneng tsa rokete; Ka nako e ts'oanang, li-superalloys li ile tsa qala ho ata le ho sebelisoa ho likarolo tsa indasteri ea sechaba, tse kang li-turbocharger tsa diesel, li-turbine tsa khase ea fatše, joalo-joalo, le li-alloys tse hanyetsanang le mocheso o phahameng li ile tsa ntlafatsoa ka mor'a tse ling. Li-superalloy tse thibelang ho bola le ho bola; ka 1970, tlhahiso ea liteko le lipatlisiso tsa li-superalloys li qalile ho ba teng. Ka ho etsisa, tšilo ea lijo le nts'etsopele ea li-superalloys tsa Soviet e le motsoako o ka sehloohong le boleng ba ts'ebetso ea eona, e fihlile kapa e fetisitse maemo a Soviet le boemo ba 'nete. Lisebelisoa tsohle tse hlokahalang bakeng sa enjene li thehiloe China.

Hajoale, k'hamphani e li-connectors 'me li-relay ha li na likhetla tsa motsoako oa mocheso o phahameng. Suzhou Huatan e fana ka Halliburton mme hangata e sebetsana le li-alloys tsa mocheso o phahameng. Guiyang Product Division e ikarabella bakeng sa ho seha liparamente, lisebelisoa tsa lisebelisoa le li-angles, ho pholisa le ho tlotsa, le lisebelisoa nakong ea ts'ebetso ea li-alloys tse phahameng tsa mocheso. Patlisiso e hlophisitsoeng mabapi le ts'ebetso ha ea lekana, 'me lipatlisiso tse hlophisitsoeng mabapi le ts'ebetso ea alloy e phahameng ea mocheso li hlokahala ka potlako ho rala motheo oa tlhahiso e kholo ea ts'ebetso e phahameng. li-connectors nakong e tlang. Ka hona, ho na le tlhokahalo e potlakileng ea ho etsa lipatlisiso mabapi le theknoloji ea ho sebetsana le li-alloy tsa mocheso o phahameng ho finyella litlhoko tsa sebele tsa tlhahiso ea workshop.

3. Tlhahlobo ea sebopeho sa karolo

Nale ditho tsa mmele wa mosesane theko hloka matla a phahameng a mechine le khanyetso e matla ea creep ka mocheso o phahameng. Kakaretso ea bolelele ba nale ke 32mm, 'me bophara ba eona ke φ1.2mm, φ1.5mm, le φ1.58mm, tseo e leng tsa tšesaane. theko likarolo. , Ho bonolo ho holofala nakong ea ts'ebetso, 'me deformation e hloka ho laoloa ho finyella litlhoko tsa tlhahiso.

4. Khetho ea lisebelisoa

Kaha ts'ebetso ea nickel-silicon alloy e hloka boima bo phahameng, sebopeho se thata, phello e ntle ea ho fetisa mocheso, le ts'ebetso e matla ea mocheso o phahameng, haholo-holo ho 600 ℃, e tla etsa tharollo e tiileng ka oksijene le naetrojene. Ha o sebetsana le alloy ea nickel-silicon, boima ba bokaholimo bo tla eketseha haholo. E na le phello e matla ea abrasion. Ka lebaka la ho hanyetsa le mocheso o phahameng oa lisebelisoa tse koahetsoeng, lisebelisoa tsa ho roala li lokela ho sebelisoa ka hohle kamoo ho ka khonehang ha ho sebetsana le likarolo tse joalo tsa mocheso o phahameng oa mocheso.

Lisebelisoa tsa carbide tse koahetsoeng ka samente li batla li loketse ho seha lisebelisoa tse sa tšoaneng tse thata ho ea mochine, empa ts'ebetso ea ho roala (seaparo se le seng le ho roala ka motsoako) ho fapane haholo. Ka hona, liaparo tse loketseng li lokela ho khethoa ho ea ka lintho tse fapaneng tsa ho sebetsana le lisebelisoa tsa lisebelisoa. Carbide e entsoeng ka daemane e koahetsoeng ka daemane le DLC (Diamond Like Carbon) e entsoeng ka samente e entsoeng ka samente e tsoela pele ho atolosa mefuta e mengata ea lisebelisoa tse koahetsoeng, 'me ka bofofu khetha mahare a macha ho tsoa litlhoko tsa sebele tsa ho sebetsa, tse ka eketsang litšenyehelo tsa ho sebetsa le ho sebelisa lisebelisoa tse ncha Ha u kenya lehare. , haeba lebelo la ho itšeha le sekhahla sa phepo se fosahetse, se tla boela se ama boleng ba mosebetsi le bophelo ba tšebeletso ea sesebelisoa. Ka hona, ha u khetha lisebelisoa tsa ho itšeha bakeng sa lisebelisoa tse thata ho mochini, hoa hlokahala ho lekola moruo oa ts'ebetso le ho nahana ka botlalo ts'ebetso eohle ea ts'ebetso.

Ho ipapisitsoe le tlhahlobo ea khetho ea lisebelisoa, sengoloa sena se khetha lisebelisoa tse khethehileng tsa nickel alloy tsa Kyocera le lisebelisoa tse khethehileng tsa Sandvik tsa nickel alloy bakeng sa liteko tsa ho sebetsa. Ts'ebetso ea lisebelisoa tsa ho itšeha e bontšoa ho Lethathamo la 1.


lebitso

Ga tlhaloso ea mohlala

Keletso angle

Keletso R

lintho tse bonahalang

barbotage

Kyocera Cylindrical Thipa

Setšoantšo sa VBGT110301R-F PR930

35 °

0.1

PR930: Lisebelisoa tsa motheo tsa likaroloana tsa Ultrafine

TICN(PVD)

Sandvik Cylindrical Thipa

Tlhaloso: VCGT110301-UM 1125

35 °

0.1

GC1125: Sesebelisoa se sebelisetsoang litlhoko tse phahameng tsa boima

TICN(PVD)

5. Tlhahlobo ea mokelikeli oa ho itšeha

Mokelikeli oa ho itšeha e ka ba mokelikeli oa ho itšeha o thehiloeng metsing, o nang le phetisetso ea mocheso o potlakileng le mokelikeli o motle. Ha ho khonehe ho sebelisa mokelikeli o nang le chlorine. Ha e khone ho kopanngoa le aluminium, zinki le li-alloys tsa eona, koporo le thini nakong ea ts'ebetso. Haeba mokelikeli oa ho itšeha o na le Chlorine o tla bola 'me o lokolle haedrojene ka mocheso o phahameng nakong ea ho itšeha, e leng se tla etsa hore epidermal embrittlement ka mor'a ho kenngoa ke nickel,' me e ka boela ea baka khatello ea mocheso e phahameng ea mocheso ho phatloha ha li-alloys tsa nickel.

Mokelikeli oa ho itšeha oa workshop haholo-holo o sebelisa letšoao la Flowserve, mohlala oa ECOCOOL EM5 ke mokelikeli o mosoeu oa lebese o qhibilihang ka metsing, 'me motsoako oa oona oa lik'hemik'hale o bontšoa ho Lethathamo la 2. E ka bonoa ho Lethathamo la 2 hore mokelikeli ona oa ho itšeha o thehiloe metsing, karolo e ka sehloohong ke oli ea diminerale, ha e na chlorine, 'me e finyella litlhoko tsa machining alloys nickel. Mokelikeli ona oa ho itšeha o ka fihlela litlhoko tsa nickel motsoako motsoako.

6.Gibbscam mananeo a software

GibbsCAM ke software ea CAM bakeng sa likarolo tsa cnc machining, haholo-holo litharollo tsa CAM lefapheng la ho reteleha le ho sila. Ntle le ho reteleha le ho sila, e boetse e ts'ehetsa 2-axis ho 5-axis milling, retelehang, e hokahaneng le milling ea mesebetsi e mengata le ho seha terata. Karolo ea eona e kholo ke sebopeho sa eona se khuts'oane, se bonolo ho ithuta le ho se sebelisa, 'me mokhoa oa ts'ebetso o lumellana haholo le mekhoa ea rona ea mesebetsi ea matsoho. E kene 'marakeng oa Chaena ka Phuptjane 2008. Khampani ea rona e rekile software ka Phupu 2009. E sebelisoa haholo litsing tsa machining tsa dijithale tsa k'hamphani, ho sila ka dijithale, litsi tsa machining tse kopanyang le tse hlano. Sesebelisoa sa mofuta ona se na le ho phethoha, ho sila le ho cheka. , Boring, broaching (slots) le mesebetsi e meng, ka X, Y, Z, C, E le A lilepe. Software ea CAM e ka sebelisoa bakeng sa khokahano efe kapa efe ea li-multi-axis ho hlokomela ts'ebetso ea likarolo tse fapaneng tse rarahaneng. Ka ho fapana le ho rarahana ha likarolo tse ncha, ho bohlokoa ho sebelisa software ea mananeo bakeng sa mananeo a NC. Tsela ea sesebelisoa ea karolo e tšesaane ea shaft e bontšoa ho Setšoantšo sa 4.

7. Ho fetola tlhahlobo ea netefatso ea ts'ebetso

Kaha slitting automatic turning ke ea ho reteleha ka mokhoa o le mong, matla a ho itšeha a maholo, a etsang hore likarolo li holofale habonolo 'me boleng ba holim'a metsi bo futsanehile. Hoa hlokahala ho hlahloba karolo e 'ngoe le e' ngoe, ho fetola phapang ka nako, le ho fetola liparamente tsa lenaneo le matšeliso a lisebelisoa. Ka nako e ts'oanang, hobane lisebelisoa tsa ho sebetsa ke koloi e ikemetseng ea ho itšeha ka longitudinal, thepa ha e arole mochine o thata le o motle, 'me ho nepahala hohle ho fetisoa ka mokhoa o le mong, kahoo litlhoko tse phahameng li behoa holim'a ts'ebetso ea sesebelisoa.

Ha u khaola nickel-chromium-nickel-silicon alloy, mocheso oa ho itšeha o phahame, ho tšoarella ha sesebelisoa ho tlaase, 'me lebelo la ho itšeha le na le tšusumetso e kholo ho mocheso oa ho itšeha. Ka kakaretso, sesebelisoa sa carbide se samente se bolokiloe ho 650 ℃ ~ 750 ℃. Ka liteko tse 'maloa tsa ho fetola, li-parameter tse latelang li fumanoa:

1) Ho fokotsa lebelo vc

Lebelo la ho itšeha le na le tšusumetso e kholo ho tšoarella ha sesebelisoa. Ho molemo ho beha lebelo la ho itšeha tlas'a boemo ba ho apara bonyane ba sesebelisoa. E ka behoa ho ea ka boima le botebo ba ho itšeha ha lisebelisoa tse fapaneng tsa ho itšeha. Leka ho khetha lebelo le tlase la ho itšeha ho sebetsa li-alloys tsa nickel. Ka kakaretso, ho sila ka thata ke 20-50m/min, mme ho sila hantle ke 40-70m/min;

2) Chelete ea lijo f

Sekhahla sa phepelo ha se na phello e nyane ho tšoarella ha sesebelisoa. Tabeng ea ho netefatsa bokhabane ba holim'a mochine o entsoeng, ho ka khethoa sekhahla se seholo sa phepo. Ka kakaretso, 0.003~0.006mm/r e ka khethoa, 'me sekhahla sa phepelo se ke ke sa ba seholo haholo. Ho hongata haholo ho tla etsa hore sesebelisoa se apare ka potlako, ho eketsa matla a ho itšeha, le ho baka deformation ea likarolo. Ka hona, ka kakaretso ha ea lokela ho ba kholo ho feta 0.006 mm / r;

3) Botebo ba ho khaola ap

Botebo ba ho itšeha bo na le phello e fokolang ho tšoarella ha sesebelisoa. Ka kakaretso, botebo bo boholoanyane ba ho itšeha bo ka sebelisoa pele, bo ka thibelang ntlha ea sesebelisoa ho itšeha ka lera le thata, 'me e ka boela ea eketsa bolelele ba ho sebetsa ba bohale ba sesebelisoa, e leng molemo oa ho senya mocheso. Mamello ea litekanyo, botebo ba sehiloeng bo lekana le sekheo sa boholo ba karolo, 'me ha bo khone ho fetoloa ka letsoho.

Ka tšebeliso ea lisebelisoa tse khethehileng tsa nickel alloy processing blades le Sandvik e khethehileng ea nickel alloy blades bakeng sa ho netefatsa ts'ebetso, karolo ea cnc machining liphello li bontšoa ho Figure 5 le 6. Phello ea holim'a likarolo e ntle, 'me sesebelisoa ha se na ho apara ho totobetseng; bokhopo ba likarolo tse sebetsitsoeng ke li-blades tsa Sandvik li kholo, tse ke keng tsa finyella litlhoko tsa litšoantšo. Ka hona, li-blades tsa Kyocera li sebelisetsoa mahare a ka ntle a chitja. Haeba lets'oao le hloka ho lokisoa, ho khethoa li-blades tsa Kyocera.

8. Summary

E shebana le bothata ba hore mabitso a alloy a nickel-chromium-nickel-silicon ha a na bokhoni ba ho sebetsa, sengoloa sena se qala ho tsoa likarolong tsa lisebelisoa le likarolo tsa ts'ebetso, se etsa liteko tse ngata tsa ts'ebetso, se fumana sesebelisoa se loketseng nickel-chromium- nickel-silicon alloy process, e ntlafatsa maemo a ts'ebetso, 'me e rarolla bothata. E le ho rarolla bothata ba nickel-chromium-nickel-silicon alloy processing, workshop e khonne ho sebetsana le thepa ho tloha ha e sa khone ho e sebetsa. Ka lekhetlo la pele, e na le bokhoni ba ho sebetsana le lisebelisoa tsa alloy tsa nickel-chromium-nickel-silicon, tse ntlafatsang haholo boleng ba ts'ebetso le ts'ebetso ea cnc machining ea likarolo. Tlhahiso ea lihlopha tsa li-alloy contacts e ile ea rala motheo.

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