Xa iinjineli zichaza a umzi-mveliso wesitulo sevalve, abagcini nje uku-odola inxalenye-baqinisekisa ukuzinza kwe-dimensional phantsi kwe-bar ye-350, ukuxhatshazwa kokugqoka emva kwemijikelezo ye-10,000, kunye nokuhambelana kwe-metallurgical kwiiyunithi ze-500. Sibone iiprojekthi ezininzi zidodobala ngenxa yokuba isihlalo sijijekile ngexesha lokuhamba ngebhayisekile, okanye i-micro-porosity ibangele ukuvuza kwangaphambi kwexesha kwii-hydraulic manifolds. Yingakho ukuchaneka akusiyo ibango lokuthengisa-yinto efunekayo yokungena.
Kutheni “iFactory yesitulo seValve” iligama elilahlekisayo-kwaye yintoni kanye oyidingayo
Uninzi lwabathengi bachwetheza "i-valve seat factory" kuGoogle belindele imveliso yesitshixo. Kodwa ekusebenzeni, impumelelo ixhomekeke kwizinto ezintathu ezingenakuxoxisana: ubugcisa bezinto eziphathekayo, ukuthembeka kwejometri, kunye nokulandeleka kwenkqubo. Iqabane lokwenyani kufuneka liphathe i-AMS 5387 cobalt ialloy-hayi nje umatshini, kodwa uyiphose ngesithuba esilawulwayo se-dendritic, emva koko ugqibezele indawo yokutywina ukuya kwi-± 0.005 mm TIR ngelixa ugcina uxinzelelo olushiyekileyo. Sihambise ngaphezulu kwe-12,000 yezihlalo zevalvu kwiimpompo zepiston zoxinzelelo oluphezulu ukusukela ngo-2019. Ibhetshi nganye ithwala ukulandeleka kobushushu obugcweleyo, i-CMM ibika iidamitha ezibaluleke kakhulu, kunye nokuqinisekiswa koburhabaxa bomphezulu kwi-Ra ≤ 0.4 µm ebusweni bokutywina.
Iinyani ezine zobuGcisa Uninzi lwababoneleli abayi kuchaza
Okokuqala, iialloys ze-cobalt-nickel zifuna ukuhamba komsebenzi okudityanisiweyo kokuphosa-omatshini. Izihlalo ze-Sand-cast zihlala zifuna i-40% yokususwa kwempahla-ininzi kakhulu kwiindlela zesixhobo eziqhelekileyo. Sisebenzisa ukufakwa kwe-carbide yesiko kunye neengubo ze-PVD TiAlN kunye namazinga okutya okuguquguqukayo ahla ukusuka kwi-120 mm / min ukuya kwi-35 mm / min xa uwela indawo echaphazelekayo ukushisa kufuphi nobuso besihlalo.
Okwesibini, utoliko lwe-GD&T luchaphazela ngqo umsebenzi. Isihlalo esichazwe nge-Ø0.015 mm yokunyamezela indawo xa kuthelekiswa nebhore yokulinga? Oko kufuna ukulungelelaniswa kwe-optical kwi-process-kungekhona emva kokuhlolwa kokugqiba. Siyaqinisekisa ubudlelwane bedatum ngaphambi konyango lokugqibela lobushushu, hayi emva koko.
Okwesithathu, ingqibelelo engaphezulu ibonakalisa uburhabaxa kuphela. Silinganisa i-micro-hardness gradients kwisihlalo sobuso (HV300-HV420) kwaye senze uvavanyo lwe-fluorescent penetrant kuwo onke amaqashiso-kungekhona nje iisampulu-ukubamba i-subsurface discontinuities engabonakaliyo kwi-CMM.
Okwesine, ukuqinisekiswa kwezinto eziphathekayo akunantsingiselo ngaphandle kwentsebenziswano yomthengisi. Sisebenzisana nokuphuhlisa i-billet specs kunye nomboneleli wethu we-cobalt alloy eJamani, sigunyazisa i-ASTM E112 yobungakanani bengxelo yobungakanani bengqolowa kunye nokuqinisekisa ukuxhathisa kwe-intergranular corrosion per ASTM G28A.
Yintoni eyahlula uMenzi weSitulo seValve echanekileyo
Akukho malunga nokuba noomatshini be-CNC. Kumalunga nokulawula okwenzekayo phakathi kwabo:
- Ulawulo lokuphosa: Ukuphoswa kotyalo-mali kwiijometri ezintsonkothileyo (umzekelo, amaphiko okupholisa adityanisiweyo), ukuphoswa kwesanti kwizihlalo ezinobubanzi obukhulu-zombini ngokujongwa kwexesha lokwenyani lobushushu ngexesha lokuqina.
- Ukuziphatha komatshini: Ukugqitywa kwe-axis ezininzi zokutywinwa komphezulu usebenzisa iitafile ezijikelezayo ezine-±1 arc-yesibini ephindaphindwayo, hayi nje i-3-axis milling.
- Ukudityaniswa konyango lobushushu: Ukunciphisa uxinzelelo kwi-950 ° C kunye ne-argon backfill, ilandelwa ukupholisa okulawulwayo kwi-15 ° C / iyure ukukhusela ukubunjwa kwesigaba se-sigma kwi-cobalt alloys.
- Ukugqiba ukuqinisekiswa: Imephu yomphezulu womphezulu wemephu nge-interferometry yokukhanya okumhlophe-hayi nje iprofilometer edlulayo-ukuqinisekisa ubungakanani bendawo (i-Abbott curve) iyahlangabezana neemfuno zokutywinwa kwehydraulic
Siyala i-6.2% yeebhilithi ze-cobalt alloy ezingenayo ngokusekelwe kuvavanyo lwe-ultrasonic yedwa. Oko akuyonkcitho-oko kukuthintela ukusilela kwintsimi.
Ukukhetha iqabane lakho leSitulo seValve: Iitshekhi eziThathu eziSebenzayo
Phambi kokusayina i-NDA, cela ezi-uze uqinisekise:
- Cela iingxelo zeCMM ezintathu zokugqibela zejiyometri yesitulo esifanayo. Thelekisa eyona nto ithelekiswa negama kubuso obutywiniweyo, idiameter yepilot, kunye ne-backface perpendicularity. Ukuba babelana kuphela ngedatha yesishwankathelo, hamba.
- Buza ingxelo yabo yovavanyo lwezinto eziphathekayo (MTR) isakhiwo. Ukulandelelwa kokwenyani kuthetha ikhonkco ngalinye lobushushu kuhlahlelo lwekhemikhali, iziphumo zokuqina, kunye neefoto ze-microstructure-hayi nje inombolo yesatifikethi.
- Phonononga ingxelo yabo yeGD&T. Ngaba ziqinisekisa ukunyamezelana kwezikhundla ezidibeneyo? Ngaba banokubamba iprofayili yomphezulu ongaphakathi kwe-0.008 mm ngapha kwe-120 ° arc? Ukuba impendulo yabo ibandakanya "siya kuzama," khange bayenze ngaphambili.
QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. isebenza ngale ndlela yonke imihla-kungekhona nje ngaphandle, kodwa njengenkqubo eqhelekileyo. Indawo yabo ehambelana ne-ISO e-Qingdao iphatha yonke into ukusuka kwi-AMS 5387 cobalt alloy nozzles ukuya kwiziseko zempompo yentsimbi engenasici, kunye namaxwebhu apheleleyo ukusuka kwirisithi yemathiriyeli ekrwada ngovavanyo lokugqibela loxinzelelo olusebenzayo.
Ingcamango yokuGqibela: Ukuchaneka kulinganiswa ekuThinteleni ukungaphumeleli
Isihlalo sevalve esivuza kwibar ye-200 asibizi i-87 yeedola kwi-scrap. Ixabisa i-12,000 yeedola ngexesha lokuphumla kwi-rig yokomba ekude nonxweme. Ixabisa i-220,000 yeedola kwiibango zewaranti kwiinqwelo zeenqwelo zobunjineli. Kubiza igama-xa umsebenzisi womthengi wakho egxeka *uphawu lwakho* ngokusilela.
Ilungelo umzi-mveliso wesitulo sevalve kuphelisa ezo ziguquguqukayo phambi kokuba i-chip yokuqala ibhabha. Abahlangani nje ne-specs-balindele ukuba ukwanda kwe-thermal, isando samanzi, kunye nokulayisha i-cyclic kuya kusebenzisana njani nejometri kunye ne-microstructure. Ayiyomveliso leyo. Oko kukudluliselwa komngcipheko-kwenziwe ngokufanelekileyo.
