Munguva yekuwedzera maitiro eAluminium Alloy zvigadzirwa, kunyanya aluminium profiles, "kuremara" kuremara kunowanzoitika pamusoro pechiso. Kuratidzwa kwakatarwa kunosanganisira tumor diki kwazvo nekukura kwakasiyana, muswe, uye ruoko pachena rwunonzwa, uine spiky kunzwa. Mushure me oxidation kana electrophoretic pamusoro pekurapwa, vanowanzoonekwa sevatema granules vanoomerera pamusoro pechigadzirwa.
Mukuwedzera kugadzirwa kwe profiles yakakura, uku kuremara kunokwanisika nekuda kweiyo pesvedzero yemuchadenga, etcomplasomed, etc. NHOROONDO YEMAHARA ATRETTEMBATERI
Mune yakajairwa pamusuwo wewindo uye windows Profies kusawirirana neiyo yakasiyana yemashure ruvara.
Kuti uongorore maitiro ekuumbwa ezvikamu zvakashata, morphology uye kuumbwa kwenzvimbo dzakaremara pasi pezviyero zvakasiyana uye maitiro ekuwedzera akaongororwa, uye mutsauko uripo pakati pehurema uye matrix akafananidzwa. Mhinduro inonzwisisika yekugadzirisa zvakabudirira zvimedu zvakaburitswa zvakaiswa kumberi, uye bvunzo yemuyedzo yakaitwa.
Kugadzirisa hurema hwekuisa profiles, zvinodikanwa kuti unzwisise maitiro ekuumbwa ehurema hwekuremara. Munguva yekuwedzera maitiro, aluminium inonamatira kune iyo inofa bhandi rinoshanda bhanhire ndiyo chikonzero chikuru chekuremara kuremara pamusoro pechinhu chakawanikwa aluminium zvinhu. Izvi zvinodaro nekuti maitiro ekuwedzera ealuminium anoitwa pakudziya kwakanyanya kweanenge 450 ° c. Kana zvakakonzerwa nekushambadzira kupisa uye kupisa kwekupisa kunowedzerwa, kupisa kwesimbi kuchave kwakakwirira kana kuchimhanya kubva mugomba rinofa. Kana chigadzirwa chinobuda kunze kwegomba rekufa, nekuda kwekushisa kwakanyanya, pane chiitiko chealuminium chakanamatira pakati pesimbi uye chiumbwa chinoshanda.
Chimiro cheichi chisungo chinowanzoitika: Kwakadzokororwa kwekubatanidza - kubvarura - kusungwa - kusungirirwa - kubirira zvakare, uye kuchikumikidza mumakomba madiki ezvibereko zvechigadzirwa.
Uku kusungwa phenomenon kwakanangana nezvinhu zvakadai sekukatyamadza kweganda, mamiriro ekunze ekushanda, ekuwedzera, degree rekusvibisa, uye deformation kuramba simbi.
1 bvunzo zvinhu uye nzira
Kuburikidza nekutsvagisisa kwekutanga, takadzidza zvinhu izvi zvakadai sekuchena kwesimbi, kuumbwa, kuumbwa, zvinoshandiswa, uye mamiriro ekugadzira zvinogona kukanganisa nzvimbo dzakasarudzika. Mukuedzwa, tsvimbo mbiri dzehondo, 6005a uye 6060, dzaishandiswa kuwedzera chikamu chimwe chete. Iyo morphology uye kuumbwa kwezvinhu zvakadzika zvimisikidzwa zvakaongororwa kuburikidza nekuvandudza kuverenga uye nzira dzekuona, uye kana uchienzaniswa neyakajairika matrix.
Kuti tisiyanise zvakajeka morphology yeaviri kuremara kwezvinhu zvakadzika uye zvimedu, zvinotsanangurwa zvinotevera:
. Iko kuremara kunotanga kubva kune iyo scratch stripe uye inopera nehurongwa hwekudonha, kuunganidza muhombodo yesimbi pakupera kwemutsara wekukanda. Ukuru hwegadziriro hwakadzika hunowanzoitika 1-5mm, uye zvinoshandura dema dema mushure mekurapa kwe oxidation, izvo zvakazoitika zvinokanganisa kutaridzika kweiyo chimiro, sezvakaratidzwa mudenderedzwa rakatsvuka mumufananidzo 1.
. Pamhepo yeAluminium Alloy profile yakasungirirwa ne spherical grey-nhema yakaoma simbi zvidimbu uye ine chimiro chakasununguka. Kune marudzi maviri eAluminium Alloy profiles: izvo zvinogona kupukutwa kubva uye izvo zvisingagoni kupukutwa. Iyo saizi kazhinji yakaderera kupfuura 0.5mm, uye inonzwa yakaoma pakubata. Iko hakuna kukwenya muchikamu chekumberi. Mushure mekunge oxidation, haina kunyanya kusiyana neiyo Matrix, sezvakaratidzwa mudenderedzwa yero mumufananidzo 1.
2 bvunzo dzemiedzo uye kuongororwa
2.1 Kumusoro Kudhonza Kuremara
Mufananidzo 2 unoratidza iyo marara echiodzanya yeiyo yekudhonza kuremara pamusoro peiyo 6005a alloy. Kune nhanho-semucherechedzo pamberi pechikamu chekutukwa, uye ivo vanopedzisira vaendeswa nedumbu rakamiswa. Mushure mekunge mhoudhi aonekwe, iyo nzvimbo inodzokera kune yakajairwa. Nzvimbo yemubhadharo wekugadzirisa haina kunyatsonaka kune kubatwa, ine iyo inopinza thorny inonzwa, uye inonamatira kana inounganidza pamusoro pechinhu cheiyo chimiro. Kuburikidza nemuongorori wekunze, zvakaonekwa kuti kudhonza kuti morphology ye6005a uye 6060 yakawedzera profiro yakafanana, uye muswe mugumo wechigadzirwa unopfuura kupera kwemusoro; Musiyano ndewekuti iyo yakazara kudhiraivha saizi ye6005a idiki uye yakadzika yakadzika yakadzika isina kusimba. Izvi zvinogona kunge zvine chekuita nekuchinja muAlloy kuumbwa, Kanda tsvimbo State, uye Mamiriro Ekuumbwa. Kucherechedzwa pasi pe100X, pane zviri pachena kukwenya mamakisi pakupera kweiyo yekudhonza nzvimbo, iyo inokandwa padhuze neyekuwedzera kutungamira, uye chimiro cheiyo yekupedzisira yechokwadi. Pana 500x, kuguma kwekutora kwekudhirowa kune nhanho-kunge scaticher pamwe chete nekuwedzera nzira (saizi yeiyi hurongwa huri kuita gumi nemaviri)
Kuti uongorore zvinokonzeresa kudhonza, kuverenga kuverenga kwekutanga uye Edx kwaishandiswa kuitisa kuongororwa kwezviitiko uye matrix ezvikamu zvitatu zvezvikamu zvitatu. Tafura 1 inoratidza mhedzisiro yemiedzo yeiyo 6005A profile. Mhedzisiro yeEdx inoratidza kuti kuumbwa kweiyo nzvimbo yekudonha kwekudhirowa zvimedu zvakanyanyisa zvakafanana neye matsrix. Uye zvakare, vamwe vakanaka kwazvo venzvimbo vanounganidzwa mukati uye kutenderedza kuremara, uye kusvibiswa kwe c, o (kana cl), kana fe, si, naS.
Kuongororwa kwehurongwa hwekunyorovesa kwe6005a zvakanaka oxided exadized express profiles inoratidza kuti iyo profiles yakakura muhukuru (1-5mm), iyo nzvimbo yakanyanya kuiswa, uye kune nhanho-senge chikamu chechikamu chepamberi; Kuumbwa kuri pedyo neAl Matrix, uye kuchave nenhamba dzehuswa zvine hutsinye zvine fe, si, c, uye o akagoverwa kumativi akatenderedza. Zvinoratidza kuti kudhonza maitiro ekufananidzira emavara matatu akafanana.
Munguva yekuwedzera, simbi inoyerera ichikonzera kupisa kwebhandi rinoshanda kusimudza bhandi kusimuka, kuumba iyo "inonamira aluminium layer" kumucheto kwekucheka kwebhandi rekushanda bhandi. Panguva imwecheteyo, yakawandisa si uye zvimwe zvinhu zvakadai seMN uye cr mune yealuminium Alloy ari nyore kuumbwa, iyo inosimudzira iyo "inonamira aluminium layer" pamusuwo weiyo moled zone.
Simbi sezvo simbi inoyerera ichienda kumberi uye ruzha rwebhandi, chinorevesa phenomenon yekubhururuka-kusungwa-kusungwa kunoitika pane imwe nzvimbo, kukonzera simbi kuti ienderere mberi nepasirese. Kana izvo zvimedu zvichikwira kune imwe saizi, ichabvisirwa neyechigadzirwa inoyerera uye fomu yekukanda mamaki pane yesimbi. Iyo icharamba iri pamusoro pesimbi uye fomu yekudhonza zvimedu pakupera kwekuchenesa. Pasina pano, inogona kutariswa kuti kuumbwa kwezvinhu zvakashata zvinonyanya kuenderana neAluminium kunamatira kune yebhandi rinoshanda rekushanda. Mhete dzechechi dzinogoverwa dzakakomberedza dzichibva dzichibva dzinotangira kubva pamafuta, oxides kana guruva zvimedu, pamwe nekusachena kwakaunzwa pamusoro peiyo ingori yeiyo ingot.
Nekudaro, huwandu hwedhirowa mumhedzisiro 6005a bvunzo idiki uye degree rakareruka. Kune rimwe divi, zvakakonzerwa nekubuda pakubuda kwebhandi rinoshanda rebhandi uye nekuchenjerera kuputika kwebhandi rekushanda kuti rideredze huwandu hweAluminium layer; Kune rimwe divi, zvine hukama neakawandisa zvemukati zvemukati.
Zvinoenderana nemhedzisiro yakananga yekuverenga, inogona kuonekwa kuti kuwedzera kuna Si yakasanganiswa neMG Mg2si, iyo yakasara si inoonekwa muchimiro chezvinhu zvakapusa.
2.2 zvidiki zvidiki pane pamusoro
Pasi pe-low-kuvagation yekuona yekuongorora, zvidimbu zvidiki (≤0.5mm), isina kunyatsonaka pakubata, iva nekunzwa kwakapinza, uye kuomerera kune iyo yepasi pepasi. Kucherechedzwa pasi pe100X, zvidiki zvidiki pane zvakaparadzirwa zvakaparadzirwa, uye kune zvidiki-zvidiki-zvidiki zvidimbu zvakabatanidzwa kune pamusoro pazvo zvisinei kuti pane matsvina kana kuti kwete;
Pana 500x, zvisinei kuti pane kuti pane zvidimbu zviri pachena-senge kukwenya pane pamusoro pekunze munzira yekuwedzera, zvizere zvimedu zvichiri kusungirirwa, uye zviyero zvevakadzika zvakasiyana. Saizi yakakura kwazvo yemakore gumi nemashanu, uye zvidiki zvidiki ndezvevashanu μm.
Kuburikidza nekuongororwa kwekunyora kweiyo 6060 Alloy Surpons temple uye iyo Inttact Matrix, iyo zvidimbu zvinonyanya kuumbwa neO, C, SI, uye zvinhu zveLuminium zvakanyanyisa. Dzinenge zvese zvimedu zvine O uye c zvinhu. Kuumbwa kwechikamu chimwe nechimwe chakasiyana zvishoma. Pakati pavo, iyo nzvimbo iri pedyo negumi, iyo yakanyanya kukwirisa kupfuura matrix, mg, uye o; MuC zvimedu, SI, O, uye Cl Zviri pachena kumusoro; Zvidimbu d namafuta kumusoro, iwe, naNa; zvidimbu e una si, fe, uye o; h zvimisikidzo zveshuwa. Mhedzisiro ye6060 zvikamu zvina makumi matanhatu nemashanu zvakafanana neizvi, asi nekuti iyo SI uye FA MAYENGA MUNHU 60 iyo c icten in 6060 manhamba akaderera.
Kumusoro masosi kunogona kunge kusiri kuroora zvidiki zvidimbu, asi zvinogona kuvapowo muchimiro chekusangana kwezvakawanda zvidiki zvidimbu nemhando dzakasiyana, uye huwandu hwakawanda hwezvinhu zvakasiyana mumhando dzakasiyana siyana dzinosiyana. Zvinotendwa kuti zvigaro zvinonyanya kuumbwa nemhando mbiri. Imwe ndeyenyepedzeri senge alfesi uye elemental si, iyo inobva yakakwirira yekunyungudika nzvimbo yekusvibiswa senge feal3 kana alfesi (mn) mune ingot in the temple panguva yekuwedzera. Imwe yacho inotenderwa nzvimbo yekune dzimwe nyika.
2.3 Mhedzisiro yemukati yekukomba yegotot
Munguva yebvunzo, zvakawanikwa kuti kumashure kweiyo 6005a yakakandwa tsvimbo yakakandwa lathe yaive yakaoma uye yakasungirirwa neguruva. Pakanga paine maviri tsvimbo dzakakandwa neyakagadziriswa mari yekushanduka, iyo yakaenzana nekuwedzera kwakakura muhuwandu hwehukama mushure mekutora, uye saizi yedhisheni imwe yaive yakakura, sezvakaratidzwa mumufananidzo 7.
Iyo 6005a yakakandwa tsvimbo haina lahathe, saka nzvimbo yekumusoro yakaderera uye huwandu hwedhirowa hwakaderedzwa. Uye zvakare, sezvo pasina kuwedzeredza kucheka mvura yakasungirirwa kune iyo la mavara eiyo tsvimbo yakakandwa, iyo c icment mune inoenderana zvimedu zvinoderedzwa. Zvinoratidzwa kuti iyo inotsausa mamaki pamusoro peiyo tsvimbo yakakandwa ichakura kudhirowa nekuumbwa kwechigadzirwa kune imwe nhanho.
3 Kukurukurirana
. Ndezvipi zvimedu zvekunze, ganda rekare pamusoro peganda uye kumwe kusvibiswa kwakaunganidzwa mumarara embiya kana nzvimbo yakafa yemukati, iyo inounzwa kune iyo simbi kana iyo aluminium layer inoshanda bhandi. Sezvo chigadzirwa chinoyerera kumberi, masajimendi anokonzerwa, uye kana chigadzirwa chakaunganidzwa kune imwe saizi, inobviswa neiyo chigadzirwa kuti ufadze kudhonza. Mushure mekunge oxidation, kudhonza kwakatemerwa, uye nekuda kwehukuru hwayo hukuru, kwaive kuiswa pakatarisana nekuremara ipapo.
. Kuumbwa kwavo kuri pachena kwakasiyana neiyo yeiyo matrix, uye kunyanya iine o, c, fe, uye si zvinhu. Zvimwe zvezvikamu zvinotongwa ne o uye c zvinhu, uye zvimwe zvimedu zvinotongwa naO, c, fe, uye si. Naizvozvo, zvinokatyamadzwa kuti nzvimbo yemusoro inouya kubva kune maviri manhamba: imwe yacho yakavezwa senge alfesi uye elemental si, uye kusachena senge O naC vanoomerera pamusoro; Imwe yacho inotenderwa nzvimbo yekune dzimwe nyika. Izvo zvimedu zvinokatyamadzwa mushure me oxidation. Nekuda kwehukuru hwavo hudiki, ivo havana kana kushoma pane pamusoro.
. Izvo zvinhu zvikuru zveanoyevedza mafuta ari C, o, h, s, nezvimwe, uye chinhu chikuru cheguruva uye ivhu iri sio2. Iyo o Mukati meOpamusoro Zvimedu zvakakwira zvakanyanya. Nekuti zvimedu zviri mumamiriro ekunze ekupisa nekukurumidza mushure mekusiya bhandi rekushanda, uye nekuda kweiyo huru nzvimbo nzvimbo yezvikamu zvemhepo, zvinokonzeresa oxidation mushure mekusangana nemhepo, zvichikonzera yakakwira o zvemukati kupfuura matrix.
. Iyo fe chinhu chinobva kuFe muAluminium migots, kuumba yakakwirira yekunyungudika nzvimbo yekusvibiswa senge feal3 Si iripo muAluminium matrix muchimiro cheMG2SI kana solve solid solid solution yeSi panguva yekukanda. Munguva yekuwedzera kunopisa matanho etsvimbo wakakandwa, wakawandisa si anogona kufungidzira. Iyo solubility ye si in aluminium ndeye 0.48% pa450 ° C uye 0,8% (WT%) pa500 ° C. Iyo yakawandisa si zvirimo mu 6005 ndeye anenge 0.41%, uye iyo yakanyorwa SI inogona kunge iri yekukwezva uye yakakonzerwa yakakonzerwa nekuchinja kwevanhu.
. Kuwedzeredza kufa ndeye yakakwira tembiricha uye yakakwirira-yekumanikidza nharaunda. Simbi inoyerera ichinga kuwedzera tembiricha yebhandi rekushanda kweiyo mold, kuumba "inonamira aluminium layer" pakucheka kwemupendero wekushanda bhandi.
Panguva imwecheteyo, yakawandisa si uye zvimwe zvinhu zvakadai seMN uye cr mune yealuminium Alloy ari nyore kuumbwa, iyo inosimudzira iyo "inonamira aluminium layer" pamusuwo weiyo moled zone. Iyo simbi inoyerera kuburikidza ne "inonamira aluminium layer" ndeyako yekukakavara kwemukati (kutsvedza shear mukati mesimbi). Iyo simbi mahonzo uye inoomarara nekuda kwekukakavara kwemukati, iyo inosimudzira simbi uye kuumbwa kunamatira pamwe chete. Panguva imwecheteyo, chiumbwa chinoshanda chebhandi chakaremara muchimiro chehwamanda nekuda kwekumanikidzwa, uye iyo inonamira aluminium yakaumbwa nechero chikamu chebhandi rekuita basa rakafanana nemucheto wekucheka wekutengesa chishandiso.
Kuumbwa kweanonamira aluminium isimba maitiro ekukura uye kudeura. Zvikamu zviri kugara zvichisunungurwa neiyo profiler. Kana iyo inoyerera yakananga kunze kwebhandi rebasa uye pakarepo adsorbed pamusoro pechidzitiro, zvidiki zvidiki zvakanamatira kune iyo nzvimbo inonzi "adsorption zvimedu". Kana zvimwe zvimedu zvichazoputswa neyekuwedzera aluminium Alloy, zvimwe zvimedu zvichanamatira pamusoro pebhandi rebasa kana uchipfuura nebhandi rebasa, zvichikonzera kukanda pamusoro pebhandi. Iyo yekupera muswe ndeye yakagadziriswa aluminium matrix. Kana paine zvakawanda zvealuminium yakanamatira pakati pebhandi rebasa (chisungo chakasimba), chinowedzera nzvimbo dzekumusoro.
(6) Kuwedzera kumhanya kune pesvedzero huru pakudhonza. Pesvedzero yekuwedzera kumhanya. Kusvika pakutevedzana 6005 Alloy ine hanya, iyo yekuwedzera kumhanya inowedzera mukati meyedzo renji, iyo yekubuda tembiricha inowedzera, uye huwandu hwekudhirowa zvimedu zvinowedzera uye zvinova zvinorema semanyoro emuchina anowedzera. Iyo yekuwedzera kumhanya inofanirwa kuchengetwa seyakagadzikana sezvinobvira kudzivirira kuchinja kamwe kamwe nekumhanya. Kunyanyisa kuwedzeredza kumhanya uye yakakwira yekubuda tembiricha ichatungamira kuwedzerwa kupokana uye zvakadzama zvakadzama kudhonza. Iyo chaiyo mechina yekukanganisa kweiyo Extrussion kumhanya pane kudhonza phenomenon kunoda kutevera kutevera kutevera uye kusimbiswa.
. Pamhepo tsvimbo yakakandwa, nekuona burrs, mafuta emafuta, guruva, etc., zvese zvinowedzera tsika yekudhonza zvimedu.
4 Mhedziso
(1) Kuumbwa kwekudhirowa urema kunoenderana neiyo yematrix; Kuumbwa kwechinhu chetemberi chakasiyana chiri pachena kubva kune iyo yeMatrix, kunyanya iine O, c, fe, uye zvinhu zvinyadzo.
. Chero zvinhu zvinokurudzira aluminium zvakanamatira kune iyo moled inoshanda bhandi inokonzera kuremara. Pamungambo wekusangana nemhando yetsvimbo yakakandwa, chizvarwa chekudhirowa chivharo chakananga pane zvekuumbwa.
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Kutumira Nguva: Sep-10-2024
