Xa indlu yepompo ye-hydraulic ihluleka phantsi koxinzelelo lwe-350-bar, okanye i-cobalt alloy nozzle iqhekeka emva kweeyure ezingama-200 kwinkonzo yegesi emuncu, ingcambu ibangela ukuba ayiqhelekanga ukuyila-kuchaneka. Ayisiyiyo nje "ukunyamezelana okuqinileyo," kodwa ukuzinza komda kwimijikelo yobushushu, ukufana kwe-microstructural ngokusebenzisa amacandelo ashinyeneyo, kunye nokuthembeka komphezulu oxhathisa ukhukuliseko ngelixa ugcina ijometri yokutywinwa. Yiyo loo nto iinjineli ezikhangela iindawo zentsimbi ezibaluleke kakhulu zingakhangeli "ababoneleli abasasazayo." Bakhangela a umzi-mveliso wokuphosa ochanekileyo ophezulu—oluphatha isinyithi, ukwenziwa komatshini, nokuhlola njengezifundo ezingenakwahlulwa.
Kutheni "Ukuchaneka okuphezulu" ayisiyiyo nje iXesha leNtengiso-Ngumda weNkqubo
Uninzi lwamaziko alawula ukucutheka phakathi kwe-±1.5 mm nge-100 mm. Umzi-mveliso wokujula ochanekileyo ophezulu wokwenyani ubambe ± 0.15 mm kwindawo ebalulekileyo yedatum-nakwi-45-kg yokuphoswa kwentsimbi kunye noguquko lwamadonga lwe-12-mm. Njani? Ngokutshixa izinto eziguquguqukayo zenkqubo ngaphambi kokugalelwa: ukuxinana kokubumba okulinganiselwe kwi-kPa, iiprofayili zokunyanga i-binder eziqinisekisiweyo ngokwebhetshi nganye, kunye nokulinganisa kwesango kungqinwe ngokuchasene nexesha lokuzaliswa langempela (elingaqikelelwanga). Siye sabona abathengi benqaba iinxalenye kungekhona ngenxa ye-porosity ebonakalayo, kodwa ngenxa yokuba i-CMM scans iveze i-8-µm i-residual stress distortion emva konyango lobushushu-ukuphazamiseka okungabonakaliyo kwiliso okanye i-caliper, kodwa ngokwaneleyo ukuguqula ukulungelelaniswa kwesihlalo sevalve nge-0.003 °. Kulapho ukuchaneka kuphelela khona kwaye ukuthembeka kuqala.
Izakhono ezine ezahlula i-High-Precision Casting ukusuka kwi-Standard Foundry Work
Umzi-mveliso wokuphosa ochanekileyo awuphosi nje. Ingumnini wekhonkco elipheleleyo-ukusuka ekukhethweni kwe-alloy ukuya ekuqinisekiseni ukusebenza. Nantsi ukuba kuthetha ukuthini oko ekusebenzeni:
- I-Cobalt-nickel mastery-kungekhona nje ukuphatha i-AMS 5387, kodwa ukuqikelela ukuziphatha kwayo. Ingxubevange ye-T800 “ayinzima kumatshini.” Ubushushu azinzanga ngaphezu kwama-650°C. Ngoko sifudumeza iimbumba kwi-220 ° C ± 5 ° C, i-castings epholileyo kwi-≤1.2 ° C / min kwiziko ezilawulwayo ze-atmosphere, kunye neshedyuli ye-CNC enzima ngaphambi kokunciphisa uxinzelelo lokugqibela. Ukutsiba naliphi na inyathelo kuyingozi kwi-microcracks ebonisa kuphela ngexesha lovavanyo lwe-hydrostatic.
- Udibaniso oluthe nkqo oluthintela ukupakishwa konyamezelo. Xa indlu piston pump cylindricity ifuna 0.01 mm cylindricity kwi 280-mm bore * kunye * 0.05 mm ukunyamezela isikhundla imisonto ezintandathu M12 ngokunxulumene ukuba bore, outsourcing casting, machining, kunye nokugqiba iziqinisekiso drift. Siphosa, umatshini, ukuphatha ubushushu, kwaye sigqibezela kwindawo enye-sisebenzisa ukulungiswa kweCMM efanayo yokuhlola okungenayo kunye nokukhululwa kokugqibela.
- Imveliso eqhutywa yi-GD&T-hayi ukutolika. Abathengi basithumelela ushicilelo oluno-ASME Y14.5-2018 callouts: “|POSITION|0.02|A|B|C|.” Asibuzi ukuba "Kuthetha ukuthini oku?" Sibeka imephu yedatha nganye kwizinto eziphathekayo, silinganisa ukususwa kwezinto ezimbi kakhulu, kunye nongquzulwano lweflegi *phambi* kokuveliswa kwendlela yesixhobo. Omnye umxhasi waseYurophu ulondoloze i-$ 210K ekusebenzeni kwakhona ngokubamba i-datum B engafanelekanga ngexesha lokuphononongwa kwethu kokwenziwa-iiveki ezintathu ngaphambi kokuthululelwa kwentsimbi yokuqala.
- Ukulandeleka okuqala ngee-certs zemathiriyeli ekrwada-hayi amanani ebhetshi. Bonke ubushushu be-cobalt alloy bufika kunye nohlalutyo olupheleleyo lwe-spectrographic, ingxelo yobungakanani beenkozo, kunye nedatha yokuvavanya. Siyifakela kwisixokelelwano sethu, siyidibanise neqashiso lokuphosa, emva koko sibophe elo qashiso kuwo onke amanani asetyenzisiweyo. Ukuba isiseko sempompo asiphumelelanga kwiiyure zokusebenza ezingama-15,000, siyakha kwakhona imbali yonke: umhla wokunyibilika, ubushushu obuthululwayo, izinga lokupholisa, ubunzima bokufunda, kunye ne-ID yomsebenzisi oqhube iskena sokugqibela seCMM.
Iindleko zokwenyani zokusa "Okulungileyo okwaneleyo"-kwaye kutheni kungathi ingabizi
Abanye abathengi bathelekisa iikowuti ezisekelwe kwixabiso leyunithi kuphela. Kodwa qwalasela oku: iplagi ye-cobalt ye-cobalt ye-$ 480 ephonswe kwi-± 0.5 mm ixabisa i-37% ngaphantsi kwangaphambili kunenye ebanjwe kwi-± 0.12 mm. Nangona kunjalo indawo ekhululekileyo ifuna i-2.3 yokupasa komatshini okongeziweyo, ivelisa i-41% yokunxiba izixhobo ezingaphezulu, kwaye ine-22% ephezulu yezinga le-scrap ngexesha lovavanyo lokugqibela lokuvuza. Ixabiso lilonke lokufika? $612. Okubi nakakhulu, ukungaphumeleli kwintsimi kubangela amabango ewaranti ephakathi kwe-4.7 × inxalenye yeendleko-kunye nomonakalo wokuthemba ukuba akukho saphulelo sibuyiselwa. Ukuchaneka ayisosongezo. Yisiseko sentsebenzo eqikelelweyo.
Ukukhetha iFactory Casting yakho echanekileyo: iitshekhi ezintathu ezingaxoxiswanga
Phambi kokuba usayine i-NDA, qinisekisa ezi—kungekhona kwiincwadana ezinemifanekiso, kodwa kubungqina bomgangatho weevenkile:
- Buza iingxelo ze-CMM kumaqashiso amathathu akutshanje ejometri efanayo. Jonga ukutenxa okusemgangathweni okungaguqukiyo-hayi nje "ngaphakathi kwenkcazo." Ukusasazeka kwe-±0.005 mm kwimilinganiselo engama-20 kukuxelela ngaphezu kwesitampu esinye sokupasa/sokusilela.
- Cela i-micrograph yecandelo elinqamlezayo lokusalwa okugqityiweyo. Ulwakhiwo lweenkozo kufuneka lufane, i-dendrite ingalo igqagqene iqine kwaye iqondise-ingakhethi okanye yahlulwe. I-Porosity kufuneka ibe yingqukuva kwaye ibe yodwa, ingaze idityaniswe.
- Jonga ukuhamba kwabo kwe-GD&T. Jonga indlela abaseka ngayo inxalenye enzima kwi-CMM. Ngaba basebenzisa ii-kinematic mounts? Ngaba ziyaqinisekisa ulungelelwaniso lweprobe *phambi* kokuskena? Ukuba bayatsiba nokuba kukuphi, ukunyamezela kwakho kungokwethiyori.
Ukuthembeka akuzuzwa ngokuqiniswa kwespekthi. Yakhelwe ngokuqonda indlela isinyithi esinyibilikisiweyo esihamba ngayo, indlela ialloys esabela ngayo kwiigradient zobushushu, kunye nendlela amandla omatshini anxibelelana ngayo ne-as-cast microstructure. QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. isebenza njengefektri yokuphosa echanekileyo ngenxa yokuba zonke izigqibo-ukusuka kwisayizi yengqolowa yesanti ukuya kwi-spindle RPM-yenziwe ukuphelisa ukuguquguquka, kungekhona ukulawula. Umsebenzi wabo ubonakala kwiimpompo ezityhala amanzi olwandle kubunzulu obuziimitha ezili-1,200, iishafti zewinch eziphakamisa iitoni ezingama-42 zemoto yobunjineli, kunye neevalvu ezilawula ukuhamba kwehydrogen kwizikhululo zokugalela amafutha. Ukuchaneka akuyonjongo yabo. Yigrama yabo. Kwaye kwiindawo eziphakamileyo zentsimbi, igrama inquma ukuba inkqubo iyasebenza-okanye iyasilela.
