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Kushandiswa Kwechigadzirwa
Kushandiswa kwekukanda aluminium alloy high pressure mumunda wemarobhoti akangwara
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Nzvimbo yakanyatsobatanidzwa yemarobhoti akangwara
Majoini emarobhoti akangwara, semajoini emuviri wemunhu, ane zvinodiwa zvakanyanya zvezvinhu zvine simba rekutakura zvinhu. Maitiro ekukanda aruminiyamu alloy ane simba repamusoro anogonesa joini kuti izadze mvura yealuminium alloy nemazvo mukona yega yega yemold yakaoma panguva yekuumba. Semuenzaniso, joini yemaoko erobhoti remaindasitiri rine ukobvu hwemadziro hwe3-5mm chete, asi rinogona kutakura torque ye50-100N・m, nekuda kwechimiro chakakora chehurongwa chinopiwa nekukanda kwakasimba. Mukugadzira, tinodzora tembiricha pa660±5℃ kuti aluminium alloy ikwane zvakanaka nemold pasi pekumanikidzwa kwakanyanya kwe100-150MPa, tichiona kuti kururama kwejoini kunosvika ±0.1mm uye roughness yekumusoro Ra inodzorwa mukati me1.6μm, tichiisa hwaro hwekuungana kwakanyatsonaka uye kushanda zvakanaka kwezvikamu zvejoini.
Dzimba dzinoderedza kudziya
Sechikamu chikuru chekutumira, hunhu hweimba yerobhoti inodzora hutachiona hunokanganisa zvakananga kushanda zvakanaka uye kugadzikana kwekutumira. Imba yekuderedza hutachiona yakagadzirwa nealuminium alloy high-pressure casting ine kugadzikana kwakanaka kwekupisa uye hunhu hwemakanika. Tora imba yekuderedza hutachiona ye harmonic semuenzaniso. Kunyangwe iri diki muhukuru, ine chimiro chakaomarara chine mazino akanaka uye maburi ekumisikidza mukati. Munguva yekukanda, tinoshandisa tekinoroji yepamusoro yekugadzira mold uye optimization kudzora deformation yeimba iri mukati me0.05mm pasi pekumanikidzwa kwe80-120MPa. Panguva imwe chete, kuburikidza nemaitiro ekurapa pamusoro, kuramba kupfeka kweimba kunowedzerwa, uye kururama kwekutumira kunovimbiswa panguva yekufamba kwerobhoti kwe-high-frequency reciprocating, mutengo wekugadzirisa unoderedzwa, hupenyu hwebasa hunowedzerwa, uye vimbiso yekutumira yakavimbika inopihwa yekufamba kwakarurama kwerobhoti rakangwara.
Dzimba dzemutongi
Nzvimbo yekudzora yerobhoti yakangwara haifanirwe kungochengetedza zvikamu zvemagetsi zvemukati kubva kunze, asiwo kuve nekushanda kwakanaka kwekuparadza kupisa. Nzvimbo yekudzora yakagadzirwa nealuminium alloy high-pressure casting ine mbabvu dzekuparadza kupisa 10-15 dzakagoverwa zvakaenzana pakureba kwe150-200mm kuburikidza nekugadzirwa kwechimiro chembabvu dzekuparadza kupisa, uye nzvimbo yacho inodzorwa nemazvo pa3-5mm. Kana robhoti ichiita kupisa panguva yekushanda nguva dzose, kutenderera kwakanyanya kwearuminiyamu alloy (kutenderera kwekupisa kwe100-200W/(m・K)) kunogona kuendesa kupisa nekukurumidza pamusoro pegoko, uye wobva wadzora tembiricha mukati menzvimbo yakachengeteka yekushanda yezvikamu zvemagetsi (kazhinji isingapfuure 60℃) kuburikidza nekubatana kwembabvu dzekuparadza kupisa nemhepo. Panguva imwecheteyo, kushanda kwayo kwakanaka kwekudzivirira kwemagetsi kunodzivirira kupindira kwemagetsi uye kunovimbisa kushanda kwakasimba kwemutongi, inova dziviriro yakasimba kune "uropi" hunoshanda hwerobhoti yakangwara.
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Mibvunzo Inowanzo bvunzwa
Mubvunzo 1: Ungava sei nechokwadi chekuti zvikamu zverobhoti zvakagadzirwa nealuminium alloy high-pressure casting zvinogara kwenguva refu pasi pekushandiswa kwepamusoro-soro?
A1: Tinodzora zvakasimba manyuko ezvinhu uye tinosarudza alloys dzemhando yepamusoro dzealuminium kuti tive nechokwadi chekuti simba radzo rekudhonza rinogona kusvika 250-300MPa. Munguva yekukanda nechisimba chakanyanya, kutonga kwakaringana kwema parameter ekuita kunoita kuti chimiro chemukati chekasi chive chakasimba uye kunoderedza zvikanganiso zvakaita sema pores ne inclusions. Panguva imwe chete, kuburikidza nekusimbiswa kwekupisa kunotevera, kushushikana kwemukati kunobviswa uye simba rekuneta rezvikamu rinowedzerwa kuvandudzwa. Mukushandiswa chaiko, mushure mekuedzwa kwekufananidzira, ganda remarobhoti rinogona kuramba richishanda zvakanaka pasi pe10^7 cycles yekurodha, zvichizadzisa zvinodiwa zvekushandiswa ne frequency yakakwira.
Mubvunzo wechipiri: Kururama kwezviyero zvemarobhoti ane maumbirwo akaomarara kunogona kuvimbiswa here?
A2: Ehe. Tinoshandisa tekinoroji yepamusoro yekugadzira mold uye michina yekukanda nemazvo. Padanho rekugadzira mold, tinoshandisa computer simulation analysis kuti tigadzirise system yekudira uye kugoverwa kwemunda wekupisa mold. Munguva yekukanda, mvura yealuminium alloy inozadzwa nemazvo mugomba remold nekumhanya kwakanyanya uye kumanikidzwa kwakanyanya kuburikidza nechinhu chinopinza chakanyatsojeka, kuitira kuti kururama kwedimensional yekukanda kusvike padanho reIT7-IT8, uye kutsauka kwedimensional yezvikamu zvakakosha kunodzorwa mukati me ±0.05mm, iyo inosangana zvizere nezvinodiwa zvemarobhoti akangwara ekugadzira castings dzakaoma.
Mubvunzo wechitatu: Zvikamu zverobhoti zvakakandwa nealuminium alloy high-pressure casting zvinokurumidza kukuvadzwa here?
A3: Tine matanho akakodzera ekudzivirira izvi. Chekutanga, sarudza zvinhu zvealuminium alloy zvisina tsvina yakawanda kuti uderedze njodzi yekuora. Mushure mekukanda, kurapwa kwakakosha pamusoro pechinhu kwakadai sekunodiza kuchaitwa kuti pave nefirimu re dense oxide rine ukobvu hunosvika 10-25μm. Firimu iri rine simba rekudzivirira ngura uye rinogona kudzivirira ngura dzakadai seacids, alkalis nemunyu munzvimbo dzemaindasitiri. Mushure mekuyedzwa kwesalt spray, ngura dzakarapwa hadzina ngura yakajeka pamusoro pechinhu munzvimbo inopfapfaidzwa nesalt inotora maawa mazana mashanu, zvichiita kuti zvikamu zverobhoti zvishande zvakanaka kwenguva refu munzvimbo dzakaoma.
Q4: Kutenderera kwekutumira kwakareba here kune zvikamu zverobhoti zvinogadzirwa nealuminium alloy zvine simba repamusoro?
A4: Tine maitiro ekugadzira akajairwa uye sisitimu yekutakura zvinhu inoshanda. Kubva pane zvinodiwa nevatengi kusvika pakugadzira nekuumba, kusvika pakugadzirwa kwekuyedzwa kwechigadzirwa uye kugadzirwa kwakawanda, chinongedzo chimwe nechimwe chakabatana zvakanyanya. Kune zvikamu zvakagadzirwa zvehukuru hwechinyakare uye chimiro, kutumira kunogona kupedzwa mukati memavhiki 3-4; kune zvikamu zvakaoma uye zvakakura, kutenderera kwekutumira kunongova mavhiki 6-8 chete. Panguva imwe chete, tichachengetedza kutaurirana nevatengi panguva chaiyo, kupa mhinduro panguva yekufambira mberi kwekugadzira, uye kuona kufambira mberi kwakanaka kwemapurojekiti evatengi.
Mubvunzo 5: Mutengo wezvikamu zverobhoti zvinogadzirwa nealuminium alloy wakakwira here?
A5: Kubva pamaonero emabhenefiti enguva refu, mukana wemutengo uri pachena. Kunyangwe mutengo wezvinhu zvakagadzirwa nearuminiyamu wakakwira zvishoma pane wemamwe mapurasitiki einjiniya, maitiro ekukanda ane simba guru anogona kuita kuti pave nekuumbwa kwesimbi, nekushandiswa kwezvinhu kusvika ku85% - 95%, zvichideredza mvumo dzekugadzirisa dzinotevera. Panguva imwe chete, panguva yekugadzira zvinhu zvakawanda, mutengo wekugovanisa mold unodzikiswa, uye mashandiro ekukanda akagadzikana, zvichideredza mitengo yekugadzirisa zvakare uye yezvimedu zvinokonzerwa nematambudziko emhando yepamusoro. Zvichienzaniswa nemaitiro ekugadzira echinyakare, mutengo wese unogona kudzikiswa ne20% - 30%, zvichipa makambani erobhoti akangwara mhinduro dzezvikamu dzinoshanda.