Xa iinjineli zicacisa iinxalenye zeenkqubo ze-hydraulic, iimpompo ze-oilfield, okanye ii-winch-duty-winch assemblies, "i-high-precision parts factory" ayikho nje igama lokukhangela-yinto engenakuxoxisana. Uzinzo lwe-Dimensional phantsi kwe-500-bar yoxinzelelo. Umphezulu wemfezeko emva kwemijikelo ye-10,000 yoqhagamshelwano olunama-abrasive. Ukuhambelana kweMetallurgical kwiibhetshi zeeyunithi ezingama-200. Ezi ayizizo iithagethi zethiyori. Ziibhentshi zemihla ngemihla-esidibene nazo kwi-OEMs yevalve yaseMntla Melika, izihlanganisi zemoto yobunjineli baseJamani, kunye nabakhi benkqubo yempompo yaseSingapore.
Kutheni le nto iCobalt Alloys ifuna ngaphezulu koomatshini be-CNC kuphela
Amacandelo e-cobalt-nickel-ingakumbi i-AMS 5387 kunye ne-T800-grade-ayiphumelelanga ngokungalindelekanga xa iiparamitha ze-machining zihamba nge-0.5%. Sifunde oku ngendlela enzima ngexesha lokuqhuba umqhubi we-2022 kwizindlu zevalve yoxinzelelo lwe-subsea: ukuqhekeka kwe-micro-cracking kubonakala kuphela emva kokuhamba ngebhayisikile eshushu, kulandelwa umva kumthwalo we-chip ongaguqukiyo ngexesha lokudlula okurhabaxa. Ukusukela ngoko, umzi-mveliso wethu wecandelo elichanekileyo elichanekileyo lifakela iliso lexesha langempela le-spindle torque kwiziko ngalinye le-5-axis machining-kungekhona njengento yoluhlu lokutshekisha, kodwa njengesango lenkqubo. Akukho nxalenye ishenxela ekugqityweni ngaphandle kokuba umahluko wetorque uhlala ngaphakathi ±2.3% kwiindawo ezintathu ezilandelelanayo.
Olu qeqesho lufikelela ekufumaneni izinto eziphathekayo. Asizamkeli iziqinisekiso zokusila zodwa. Yonke i-cobalt alloy ingot ingena kwi-spark emission spectroscopy endlwini ngaphambi kokuphosa. Ngoba? Ngenxa yokuba ukulandelela isulfure ngaphezu kwe-0.008% kubangela ukukrazula okutshisayo kwimibhobho enqabileyo-nokuba ibhetshi "iyadlula" i-ASTM A992. Iqela lethu le-Foundry liphuhlisa iprofayili yonyango lobushushu kunye nababoneleli bezinto eziphathekayo, ukulungelelanisa amaxesha okufunxa ngokusekwe kwimilinganiselo yobungakanani bengqolowa-hayi iitshati zesithando somlilo.
Udibaniso oluthe nkqo olulawula ukuguquguquka
Ababoneleli abaninzi bakhuphela ngaphandle, ukwenziwa komatshini, kunye nonyango lobushushu. Oko kudala imithombo emithathu eyahlukeneyo yokukhukuliseka okulinganayo. Kwiziko lethu le-Qingdao, ii-mold casting molds zenziwa ngoomatshini abafanayo be-DMG Mori NT series egqiba inxalenye yokugqibela. I-CMM efanayo iqinisekisa zombini ii-casting zelizwe eliluhlaza kunye neendibano ezigqityiweyo. Ilebhu ye-metrology efanayo ilungelelanisa zonke izixhobo mihla le ngokuchasene neenkosi ezilandelekayo ze-NIST.
Sibona umahluko ngokucacileyo kwizindlu zepiston pump cylinder. Abathengi bathumela i-GD&T callouts befuna ±0.005 mm indawo eyinyani kumazibuko ali-12 anemisonto. Xa ukuphosa kunye nomatshini kwenzeka kwiivenkile ezahlukeneyo, impazamo eyongezelekayo ihlala ibetha ±0.018 mm. Ukuhamba kwethu okudityanisiweyo kukubambe kwi-± 0.004 mm-kuba inkqubo ye-CNC ibhekisa ngokuthe ngqo iindawo ezifakwe kwidatum eskeniweyo ngexesha lokuhlolwa kwenqaku lokuqala. Akukho ngqikelelo. Akukho zilophu zokuphinda zisebenze.
Olu lawulo lubaluleke kakhulu kwiijiyometri ezingekho mgangathweni. Iodolo yakutsha nje ye-offshore winch center shaft roller ifuna i-7° helical grooves kububanzi obuyi-320 mm, iqiniswe ukuya kuma-58 HRC. Abakhuphisana bacaphula iiveki ze-14 kunye ne-30% yengozi ye-scrap. Sihambise kwiiveki ezi-8-sisebenzisa i-custom-ground carbide insert egcina ingqibelelo emphethweni ngemizuzu ye-42 yokusika okuqhubekayo. Idatha yobomi besixhobo ngoku ihlala kwisiseko sedatha yethu yangaphakathi, ephawulwe kwi-AMS 5387, uluhlu lobunzima, kunye nenqanaba lokupholisa.
Umgangatho ongayeki kwiiNgxelo zokuHlola
Iiprothokholi zethu zokuhlola zilandela i-ASME Y14.5-kodwa uye phambili. Yonke icandelo elibalulekileyo liphethe i-digital twin: irekhodi lexesha elibonisa uhlalutyo lwezinto ezingenayo, kwi-CMM kwi-process scans kwii-checkpoints ze-3, ukufundwa kobunzima bomphezulu kwangaphambili kunye ne-post-passivation, kunye neziphumo zovavanyo olusebenzayo (umzekelo, izinga lokuvuza kwe-helium kwi-bar ye-10). Oku akusiyo eyethiyetha yokuthobela. Yindlela esiye safumanisa ngayo ukungaphumeleli kwetywina okuphindaphindiweyo kwiziseko zempompo: unobangela osisiseko yayiluxinzelelo olushiyekileyo lokupholisa okungalinganiyo ngexesha lokufakwa kwe-anneal-hayi impazamo yokwenza. Sihlengahlengise umjikelo wokucima, siqinisekiswe nge-X-ray diffraction mapping, kunye nokunciphisa ukungaphumeleli kwintsimi nge-92%.
Sigcina ukulandeleka okugcweleyo ukuya kutsho kwinani lobushushu lendawo nganye yemathiriyeli ekrwada-kwaye siyinxibelelanisa neziphumo zohlolo ngalunye. Ukuba umthengi uphawula umcimbi, sitsala yonke imbali yedijithali phantsi kwemizuzwana engama-90. Hayi, "siza kubuyela kuwe." Hayi "ngokwenkqubo yethu eqhelekileyo." Idatha nje, izitampu zexesha, kunye nokuqonda okusebenzayo.
Ukuthembeka Kuqala Phambi KokuSika Kokuqala
Umzi-mveliso wamacandelo achanekileyo uzuza ukuthembela kungekhona ngexesha lokuvelisa-kodwa ngexesha lophononongo lobunjineli. Sibeka imingcipheko yokwenziwa kweflegi kwangoko: "Obu bunzima bodonga lwe-0.15 mm kumlomo wakho we-cobalt alloy kuya kufuna izithuba zenkxaso ye-EDM; ixesha lokukhokela linyuka ngeentsuku ezili-11." Okanye: "Umphezulu ochaziweyo ogqityiweyo we-Ra 0.2 µm kwindlu yentsimbi eyenziwe ngesanti ifuna ukwenziwa kwe-post-machining-nantsi impembelelo yeendleko xa ithelekiswa ne-Ra 1.6 enokwaleka kokungunda okulungiselelweyo." Asithi "ewe" kuyilo olungasebenziyo. Sithi "nantsi into esebenzayo, nantsi isizathu, kwaye nantsi urhwebo."
Loo ndlela igcine ukuhanjiswa kwexesha okuzinzile kwi-98.7% kwiinyanga ezilandelelanayo ezingama-36-nangona ngexesha lokuphazamiseka kwekhonkco lokubonelela ngehlabathi. Njani? Ngokubamba isitokhwe sobuchule sesithinteli seebhilidi ze-AMS 5387 eziqinisekisiweyo kunye ne-T800 master alloys, kunye nokugcina izivumelwano zemithombo-mbini yezixhobo eziphambili zokusika. Akunjalo njengokugcinwa kwempahla-kodwa njengokunciphisa umngcipheko kulinganiswe kwiindlela zokusilela esizibonileyo ebaleni.
QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. yakha iindawo apho ukusilela kungeyondlela yokukhetha. Ukuba isicelo sakho sifuna ukuqiniseka okulinganayo kwi-cobalt alloys, imfezeko yolwakhiwo kwi-high-pressure castings, okanye ukuthembeka okusebenzayo kwiindibano zempompo ezibaluleke kakhulu-ufuna ngaphezulu komthengisi. Udinga i-high-precision parts ye-factory ephatha yonke ukunyamezela njengesithembiso.
