Xa iinjineli zichaza isethi yomoya ukugalela isanti kwiindawo zentsimbi ezichanekileyo, abakhethi indlela yelifa-bakhetha inkqubo eqinisekisiweyo, ezinzileyo yedimensionally kumacandelo ekufuneka aphile kuxinzelelo oluphezulu, ukukhwela ibhayisekile okushushu, kunye nokunxitywa kwe-abrasive. Ngokungafaniyo nesanti eluhlaza okanye i-no-bake resin systems, ukuchithwa kwesanti yomoya kuxhomekeke kumswakama we-atmospheric kunye nobushushu be-ambient ukunyanga i-binder-akukho ovens, akukho catalysts, akukho kungenisa umoya okunyanzeliswayo. Obo lula bufihla ubuqhetseba bokwenyani: ukufikelela ± 0.15 mm ukunyamezela kwimpompo yempompo ye-cobalt engama-300 mm ayithethi "ngokusebenzisa isanti." Imalunga nolawulo lwekhemistri ye-binder, ukuphindaphindwa kokubumba, ukugcinwa kwejiyometri engundoqo ngexesha lokushukuma, kunye nokuzinziswa kwe-post-cast dimensional phambi komatshini.
Siye saphosa ngaphezulu kwe-12,000 AMS 5387 i-cobalt alloy nozzles kwiminyaka emithathu edlulileyo-nganye inobunzima bodonga phantsi kwe-4.2 mm kunye neepaseji zokuhamba zangaphakathi ezifuna ukuthotyelwa kwe-CMM-GD & T eqinisekisiweyo. Kwibhetshi nganye, inkqubo yokuseta umoya yazisa uxinzelelo olusezantsi olushiyekileyo kuneendlela ezizezinye ezibotshwe nge-resin, ukunciphisa ukugqwetheka kwangemva komatshini nge-37% kwizindlu zepiston pump cylinder. Ayiyothiyori leyo. Ilinganiswe kumatshini wethu wokulinganisa we-Zeiss CONTURA G2, ungene kwindawo nganye, ulandelelwa kumanani obushushu obukrwada kunye nee-ID zemold lot.
Kutheni le nto ibalulekile? Kuba ukusetwa kwesanti yomoya ayisiyonto yokubuyela umva-sisixhobo esinobuchule sejiyometri ebaluleke kakhulu kuthumo apho imfezeko ye-microstructure kunye nokuqikelelwa komgangatho ukodlula isantya esikrwada. Qwalasela umzimba wevalvu yoxinzelelo lwehydraulic: owenziwe ngoomatshini kwintsimbi eyomeleleyo engenastainless, iya kufuna iiyure ezili-18 zokusila nge-multi-axis kwaye ivelise inkunkuma yezinto ezingama-62%. Isasazwe ngesanti eseti yomoya, imilo ekufutshane nenethi ifika ine-92% yobunzima bokugqibela obupheleleyo, ubuncinci be-porosity yangaphakathi (i-ASTM E155 iNqanaba lesi-2), kunye nesithuba esifanayo se-dendritic esiqinisekiswe licandelo le-metallographic cross-section. Isiphumo? Iindleko eziphantsi, ixesha elifutshane lokukhokela, kwaye-ngokubaluleke kakhulu-ukumelana nokudinwa ngcono kwii-spikes zoxinzelelo ngaphezu kwe-420 bar.
- Ukunyaniseka kwezinto: Izibophelelo zomoya (ngokuqhelekileyo i-sodium silicate + CO₂ activator okanye iinkqubo ze-organic ester) zazisa i-carbon pickup engafanelekanga. Oko kugcina iifestile zekhemistri eziqinileyo ezifunekayo kwi-T800 cobalt-based alloys-apho ne-0.03% yekhabhoni engaphezulu yehlisa ubulukhuni obushushu.
- Uzinzo lokungunda: Akukho mpendulo exothermic ithetha ukuba akukho kuphazamiseka kwe-thermal kwi-mold ngexesha lokugalela. Sihlala sigalela i-1100 ° C etyhidiweyo ye-cobalt-nickel kwi-molds egcinwe kwi-22-28 ° C ambient-akukho blistering, akukho veining surface.
- Ukuhambelana komgangatho: Ukwandiswa kokungunda kuqikelelwa kwaye kumgca. Kwiirola zeshaft yeziko lobunjineli yewintshi yemoto (OD 215 mm, ubude be-480 mm), sibambe ubungqukuva ngaphakathi kwe-0.08 mm ngapha kwe-100-unit lots-ngaphandle kokunciphisa uxinzelelo lwesibini.
Abanye banokuxoxa ukuba isanti eseti yomoya ayinayo isiphelo sotyalo-mali. Yinyani-kodwa uburhabaxa bomphezulu i-Ra 6.3 µm yanele ukukhwelana okusebenzayo kwiziseko zempompo kunye nee-valve ezininzi. Apho ukugqiba kubalulekile, sidibanisa ukuchaneka kwe-CNC ukujika *emva* kokusa- hayi ngaphambili. Olo landelelwano luthintela ukugqwethwa komatshini ukusuka kwisiqabu soxinzelelo olushiyekileyo. Siphinde sigweme umgibe oqhelekileyo wokuchaza ngokugqithisileyo amandla e-binder: i-silicate ye-sodium eninzi yonyusa i-mold brittleness kunye nomngcipheko wokuqhekeka okungundoqo ngexesha lokuphatha. Ukuqulunqwa kwethu okufanelekileyo kusebenzisa i-3.8% ye-binder ngesisindo, iphilise imizuzu engama-45 kwi-55% ye-RH-iqinisekisiwe ngamaxesha amathathu kunxweme lwaseQingdao.
EQINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., yethu umoya usete umzi-mveliso wesanti isebenza njengenodi enye kwindlela yokusebenza edityaniswe ngokuqinileyo-kungekhona isiseko esithe qelele. Xa umthengi engenisa umzobo weplagi ye-cobalt alloy non-standard, inkqubo yethu iqala ngophononongo lwe-metallurgical: Ngaba i-AMS 5387 ikwibakala elifanelekileyo-okanye ngaba i-T800 elungisiweyo iya kuzisa ukuxhathisa okungcono kwe-galling kwinkonzo yamanzi etyuwa? Emva koko kuza ukulinganisa uyilo lokungunda: Ngaba inkqubo yokungena izakulondla icandelo elinodonga olucekethekileyo ngaphambi kokuba ulusu lube ngumkhenkce? Kuphela ke sakha iipateni, sixube isanti, kwaye sigalele. Inyathelo ngalinye libuyisela idatha kwi-ISO 9001-eqinisekisiweyo yekhwalithi ye-loop-izatifikethi zezinto ezifakiweyo, ii-tensile bars ezivavanyiweyo nge-ASTM A781, uhlolo lwe-ultrasonic olwenziwe kuzo zonke iindonga> 25 mm ubukhulu.
Oku kudityaniswa kuzisa eyona nto ifunwa ngabathengi: iinxalenye ezifanelekileyo, ezisebenzayo, kunye nezokugqibela-hayi nje iinxalenye zenqanawa. Kwizixhobo ze-Oilfield yaseMntla Melika, oko kuthetha ukuba iivalvu zoxinzelelo ezisinda kwimijikelo ye-12,000 kwi-350 ° F ngaphandle kokuvuza. Kubakhi bezithuthi zobunjineli baseYurophu, oko kuthetha ukuba iirola ze-winch shaft zigcina ubunzulu emva kweeyure ezingama-500 zokukhwela ibhayisekile. Kubahlanganisi bempompo ye-Asia-mpuma ye-Asia, kuthetha ukuba izindlu ze-cylinder ezifika kunye nemigangatho yedatha eyenziwe ngoomatshini esele ingaphakathi kwe-± 0.05 mm-ilungele ukuhlanganiswa kokugqibela, kungekhona ukusebenza kwakhona.
Ukuba uvavanya ababoneleli ngokucokisekileyo, buza imibuzo emithathu: Ngaba banokubonisa iingxelo zeCMM kwijometri yakho ethile-hayi iisampuli eziqhelekileyo? Ngaba balawula ukuxubana kwe-binder, ukunyanga ukungunda, kunye neeparamitha ze-shakeout ngexesha lokwenyani-okanye baxhomekeke kumava omsebenzisi kuphela? Kwaye ngaba banxibelelanisa idatha yenkqubo yokuphosa kwinxalenye yokugqibela yokusebenza kusetyenziso lwasendle? Kwiziko lethu, impendulo kubo bobathathu nguewe-kwaye ibhaliwe kuyo yonke irekhodi yemveliso. Ukuchaneka akufezekiswa kwiziko lomatshini. Iqala esantini.
