Xa iinjineli zichaza a umzi-mveliso womatshini wokwenza ingxubevange yesiko, abagcini nje uku-odola iinxalenye-baqinisekisa ukuzinza kwe-dimensional phantsi kwe-350 bar ye-hydraulic pressure, ukuxhathisa i-galling kwi-cobalt-alloy nozzles kwi-650 ° C, okanye isiqinisekiso sokuqhubekeka kwe-microstructure kwizindlu zempompo zesanti eziza kuqhuba iiyure ezingama-20,000 ngaphandle kokusilela. Leyo yinyani yokusebenza-hayi isithembiso sedatha.
Siye sabona abathengi bethumela imizobo ye-AMS 5387 cobalt alloy pump components kuphela ukufumana iindawo ezine-subsurface porosity emva konyango lobushushu. Abanye bacinga ukuba "i-CNC yomatshini" ithetha "ukulungele ukuhlohla"-de i-T800 ialloy center shaft roller ingaphumeleli kuvavanyo lokungcangcazela ngenxa yoxinzelelo olungalawulekiyo olushiyekileyo olusuka kwi-asymmetric milling passing. Ezi ayizizo iimeko ezinzima. Zisisiphumo esithe ngqo sesakhono esicandekileyo: ukuphosa okwenziwa yivenkile enye, umatshini orhabaxa ngenye, ukugqiba ukucola ngesithathu-nganye ineendlela ezahlukeneyo zeendlela, ulawulo lobushushu kunye neendlela zokuhlola.
Kutheni ukudityaniswa ngokuthe nkqo kungenakuzikhethela kumsebenzi ochanekileyo we-alloy ephezulu
Ulawulo lokwenyani luqala phambi kokuba itshiphu yokuqala ibhabhe. E-QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., Isiqinisekiso sezinto ezikrwada asilonyathelo lephepha-sisiseko. Yonke ikhoyili ye-T800 ye-cobalt-based alloy ifika kunye neengxelo zovavanyo lokusila ezinokulandeleka kwinani lobushushu, ukubunjwa kweekhemikhali kuqinisekiswe ngokuchasene ne-ASTM E1086, kunye nobukhulu beenkozo eziqinisekisiwe nge-ASTM E112. Asiyamkeli ikhemistri "eqhelekileyo". Sifuna ukuthotyelwa kwe-AMS 5387 eqinisekisiweyo-ingakumbi kwiindawo zempompo ezibalulekileyo apho ukuhluka kwe-chromium ngaphezulu kwe-± 0.3% kubangela ukubola kwangaphambili kwe-intergranular kwiindawo zegesi ezimuncu.
Olu qeqesho luqhubeka ngenkqubo. Ukugalelwa kwesanti kunye notyalo-mali lwenzeka kwindawo-ayikhutshelwanga ngaphandle-ke silawula amazinga obushushu obuphambi komngundo, ukuqina komgangatho, kunye nexesha le-shakeout. Ukutenxa nge-2°C kubushushu bomngundo kuguqula isithuba sengalo ye-dendrite nge-12%, okuchaphazela ngokuthe ngqo ukusebenza kunye nobomi bokudinwa kwizindlu zepiston pump cylinder. Iiseli zethu ze-CNC ke zisebenzisa i-in-process ye-CMM yokuqinisekisa emva kokugqithisa, ukugqiba, kunye nokugqiba ukupasa-kungekhona nje ukuhlolwa kokugqibela. Silinganisa i-thermal drift kumatshini we-multi-axis rhoqo ngemizuzu engama-90 ngenxa yokuba ulwandiso lwe-0.008 mm kwiinguqu zezindlu ezijikelezayo luzale ukugxila ngaphaya kweendawo zokunyamezela ze-GD&T.
Apho ukuhamba komatshini okusemgangathweni kuphuka-kwaye yintoni esebenzayo ngokwenene
Abanye banokuxoxa ukuba nayiphi na ivenkile eqinisekisiweyo ye-ISO 9001 inokuphatha i-cobalt-nickel alloys ukuba inikwe isixhobo esifanelekileyo. Kodwa amava ehlabathi lokwenyani abalisa ibali elahlukileyo. I-carbide eqhelekileyo ifaka i-fracture ngoko nangoko kwi-AMS 5387 kumazinga okutya angaphezu kwe-0.05 mm / rev. Sisebenzisa izixhobo ezinencam ye-PCD enegeometry yerake engalunganga, i-coolant ehanjiswa kwibar ye-120 ngokusebenzisa amajelo angaphakathi e-spindle, kunye neendlela eziguquguqukayo ezigcina umthwalo oqhubekayo we-chip-nokuba ujikeleze i-3D contours njengemizimba yevalve yoxinzelelo kunye ne-4.2 mm yobunzima bodonga kunye ne-0.025 mm yeemfuno zokunyuka.
Ukuthembeka komphezulu kubaluleke kakhulu njengejometri. I-Mirror-finish Ra 0.2 µm ayisayi kuthintela ukukrazuka koxinzelelo lwe-corrosion ukuba i-subsurface microcracks ikhona kukhetho olungafanelekanga lwevili lokusila. Ukuphoswa kwentsimbi engenastainless esetyenziswa kwiziseko zempompo ekude nonxweme, sisebenzisa i-electropolishing *emva* emva kokudubula ukukroba-kungekhona ngaphambili-ukugcina uxinzelelo olushiyekileyo loxinzelelo ngelixa sifumana ukuxhathisa umhlwa kwi-ASTM A967 nganye. Olu landelelwano aluyiyo ithiyori. Iqinisekisiwe kwimveliso yangempela, kunye nohlalutyo lwe-SEM olunqamlezayo oluqinisekisa ukungabikho kokubunjwa komgca omhlophe.
Lithetha ukuthini “isiko” kwizicelo ezibalulekileyo zobuthunywa
Isiko alikho malunga nemilinganiselo engekho mgangathweni yodwa. Imalunga nokulungelelaniswa komsebenzi. Xa iOEM yaseYurophu idinga iirola zeshaft yeziko le-winch kwiimoto zobunjineli zodidi lwe-arctic, zachaza ukuqina-kodwa azizange zichaze ukuqina kwempembelelo yobushushu obuphantsi. Siye saqhuba iimvavanyo ze-Charpy V-notch ku--40 ° C kwiintlobo ezintathu zokunyanga ukushisa, sicebisa umjikelo olungisiweyo wobushushu, kwaye sahambisa iirola ezinempembelelo ye-42 J (hayi nje i-27 J efunekayo). Eso sigqibo sithintele ukuqhekeka okuncinci ngexesha lokuguqulwa komthwalo ngequbuliso kumhlaba ogqunywe ngumkhenkce.
Eli nqanaba lentsebenziswano linabela kuyilo-lokwenza ukuveliswa. Senza iflegi kwi-callout ye-GD&T engqubanayo nokuphosa ii-engile zoyilo. Silinganisa ukugqwetheka kwe-thermal kwimibhobho yealloy enodonga olucekethekileyo lwe-cobalt ngexesha lokufakwa kwesisombululo. Sinikezela ngengxelo yokwenziwa kokwenziwa ngaphakathi kweeyure ezingama-48-hayi iiveki-kuba iprototype ilibazisa ngokwexesha lokuqinisekisa indawo. Abaphathi beeprojekthi zethu bathetha kakuhle ASME Y14.5, hayi isiNgesi kuphela.
Ukuba ufuna i umzi-mveliso womatshini wokwenza ingxubevange yesiko ephatha i-metallurgy njengobunjineli-hayi ukuthenga-ujonge ukudibanisa okuqinileyo phakathi kwesayensi yezinto, ukusetyenzwa kwe-thermal, kunye nokulawulwa kwentshukumo echanekileyo. Udinga ukulandeleka okubhaliweyo ukusuka kwinombolo yobushushu ukuya kwingxelo yokugqibela yokuhlola. Ufuna amaqabane alungise iplagi ye-T800 ye-alloy ye-alloy ehlala iigophe ze-torque kwii-17 ezahlukeneyo zenkqubo yoxinzelelo. Udinga ukubulawa okuqinisekisiweyo-kungekhona nje iingxelo zokukwazi. Lo ngumqobo apho inkcazo iphela kwaye ukusebenza kuqala.
