Vagadziri vanogara vachitsvaga kugadzira zvigadzirwa zvakasimba, zvakasimba, uye zvakavimbika zvakanyanya, pamwe chete nezvikamu zvemotokari uye zvemuchadenga.Mukutsvaga uku, vanogara vachikwidziridza nekutsiva masisitimu emidziyo ane density yakaderera, tembiricha iri nani uye corrosion resistance metal alloys.Izvi zvinopa vanogadzira nzvimbo iri nani mumusika.
Chaizvoizvo, iyo inongova hafu yenyaya.
Kunyanya kusimba kwehunyanzvi hwekuita ndeyechokwadi chinogoneka nezve kusimba kwechigadzirwa, kusimba, uye kuvimbika.
Kuchinjanisa zvinhu zvekare kune akasimba kunogona kuve kutanga kwakanaka, asi kunodawo maitiro ekugadzira epamberi anovimba nekuchenesa uye kunyatsoita kuchenesa kwepasi kugadzira zvimiro zvakasimba.Simbi dzakadai sealuminium alloys uye zvinhu zvepamusoro zvakadai se carbon fiber polymer composites, inowanzoshandiswa mukugadzirwa kwemotokari uye aerospace, inoda kusungirirwa kuderedza uremu - kana fasteners inoshandiswa, uremu hunowedzerwa kune chimiro - uye kugadzira mamwe majoini akavimbika.
Nzira dzechinyakare dzekupedzisa aluminium dzinosanganisira sandblasting, solvent wiping, inoteverwa nekukuya (kushandisa scouring pad) kana anodizing.Adhesive bonding inovhura musuwo kune mamwe otomatiki maitiro ayo echinyakare kupedzisa kusingaenderane.
Anodizing inonyanya kuwanda mumashandisirwo emuchadenga apo iyi inodhura uye yakaomesesa gadziriro inoshandiswa kusangana neyakaomesesa yakatarwa.Iko kusiana kwakasiana kwejecha uye manyorero abrasion matekiniki anoratidza zvakajeka kuti imwe nzira inodzorwa yakarongeka.
Laser yekuchenesa kana laser ablation inozadza iyi gap rekuita seyakajeka, ine hushamwari nharaunda, inobatika uye inoshanda nzira yekurapa simbi uye inoumbwa nzvimbo yekuchenesa.Mhando dzekusvibiswa dzinowanikwa pamusoro pezvinhu izvi zvinobviswa nyore nyore ne laser processing.
Nekuti laser yekuchenesa ine simba, zvakakosha kuti uzive chaizvo kuti zvinokanganisa sei pamusoro pako.Musiyano uripo pakati penzvimbo yakabatwa nemazvo uye pasi- kana kupfuura-yakarapwa nzvimbo inogona kuoma zvakanyanya kuongorora.Nehuwandu hwekusimbisa tekinoroji tekinoroji inonzwisisika uye chaiyo seye laser process pachayo, vagadziri vanogona kuve nechivimbo chekuti simbi yavo uye inoumbwa nzvimbo yakagadzirira zvakakwana kusungirirwa.
Iyo inotevera Fortune laser inokupa iwe yakadzama sumo kune zvikonzero zvekusarudza laser kuchenesa.
1 -Chii chinonzi Laser Cleaning?
Laser kurapwa inzira yakanyatsojeka, yekudziya yekuchenesa nzira inoshanda nekubvisa (ablation) zvidimbu zvidiki zvechinhu chepamusoro kuburikidza neinotariswa, inowanzo pulsed, laser beam.Iyo laser inovhenekera pamusoro kuti ibvise maatomu uye inogona kushandiswa kuchera zvakanyanya madiki, maburi akadzika kuburikidza nemidziyo yakaoma kwazvo, kugadzira mafirimu matete kana nanoparticles pamusoro.
Iyi nzira yekuchenesa pamusoro inoshanda zvakanyanya nekuda kwekugona kwayo kunanga madiki akaturikidzana ezvinosvibisa uye zvisaririra.Aruminiyamu nzvimbo dzine okisijeni uye mafuta ekuzora izvo zvinokanganisa kunamira kujoinha uye macomposites anowanzo chengetedza zvakasara zvekuburitsa mold uye zvimwe zvinosvibisa silicone zvisingakwanisi kugadzira zvisungo zvemakemikari zvakasimba zvine zvinonamira.
Kana chinonamira chikaiswa pamusoro paine chimwe chezvisaririra izvi chiripo chinoedza kunamatira nekemikari kumafuta nesilicone kumusoro mashoma mamorekuru ezvinyorwa.Aya mabhondi haana simba zvakanyanya uye anozotadza kukundikana kungave panguva yekuedzwa kwekuita kana panguva yekushandisa chigadzirwa.Kana majoini achitsemuka panosangana pevhu nenamira kana coating iyi inonzi interfacial failure.Cohesive kutadza panguva ye lap shear kuyedzwa ndipo apo kutyora kunoitika mukati mekunamatira pachayo.Izvi zvinoratidza chisungo chakasimba kwazvo uye chimiro chakaungana chinosimba uye chinogara kwenguva refu.
Kubatana kukundikana kweaya akaumbwa samples akabatwa nelaser anoratidza kunamira pamativi ese emidziyo iri kusungwa.
Kusakwana kwezviso zvemasamples aya akaumbwa asina kurapwa kunoratidza kuti chinonamira chakanamira kune rimwe mativi uye chakaregedza zvachose chimwe.
Kana iwe uine kutadza kwakabatana, iwe une interfacial bond iyo isiri kurega kuenda pasina.Kurapa kwepamusoro kune chinangwa chekugadzirisa pamusoro kuti chibvise zvinosvibisa uye kugadzira kana kuburitsa nzvimbo inozokwanisa kusanganisa nemakemikari neadhesive kuti igare uye yakavimbika mabhondi.
2-Maitiro ekuziva kana Yako Laser Yakarapwa Surface Yakagadzirira Kunamatira
Kubata kona kuyerwa, senge idzo dzakataurwa mubepa reIJAA rinoshandiswa kunzwisisa kuderedzwa kwekurapa nekuwedzera, inzira yakanaka kwazvo yekutarisa uye yekuona maitiro ekuchenesa laser.
Kuyera kwekona kuyerwa kunonzwa kune shanduko yemamolecular iri kuitika pamusoro pechiso ichirapwa laser.Donhwe remvura rakaiswa pamusoro rinokwira kana kudonha richinyatsoenderana nehuwandu hwehutachiona hwe microscopic pamusoro.Kubata angle kuyerwa chiratidzo chisingaregi chekunamatira uye chinogona kupa kujeka uye kuoneka mune yakabatana sei simba rekurapa nekuchenesa zvinodiwa zvemidziyo.
Makona ekuyera kuyerwa anowirirana zvakanaka nekuchinja kwemazinga ane tsvina anotorwa nemaitiro espectroscopy.Kuyera kwakaringana kwezviyero zvetsvina pamusoro penzvimbo kunoitwa nemidziyo isingagoneke kuti vagadziri vatenge uye isingakwanise kushandiswa pazvikamu chaizvo zviri kugadzirwa zvakadaro.
Kubata kona kuyerwa kunogona kuitwa nekukurumidza pamberi uye mushure mekurapa pamutsetse wekugadzira nemanualkanamaturusi ekuyera otomatiki.Kungofanana nekuchenesa kwelaser kunotsiva nzira dzekare dzekugadzirira kwepamusoro nekuda kwezvido zve otomatiki zveyakakwira-vhoriyamu, yakakwirira-chaiyo kugadzira, kuonana kona kuyerwa kunoitawo bvunzo dzemhando yepamusoro uye dzisina kujeka senge dyne inks uye bvunzo dzekupwanya mvura kusashanda.
Kusimba kwekuita bvunzo kunongoongorora sample yezvishandiso zviri kugadziriswa, zvichiwedzera kune zvimedu uye kwete kupa chero chiratidzo chekugadzira chisungo chakasimba.Bata angles, kana yashandiswa mumutsara wekugadzira inogona kunongedza kune chaiko uko maitiro anoda kukwenenzverwa, uye anogona kupa nzwisiso pane izvo zvinofanirwa kukwenenzverwa uye kusvika papi.
3- Sei Uchishandisa Laser Kuchenesa?
Pakave nekutsvagisa kwakawanda pamusoro penzira dzekurapwa kwelaser pamusoro pekuvandudza kunamatira.Semuyenzaniso,bepa rakabudiswa mu Journal of Adhesionyakaongorora kuti ingani simba rekubatana rinowedzerwa nelaser yekuchenesa kupesana nemaitiro echinyakare.
"Mhedziso dzekuyedza dzinoratidza kuti preadhesion laser surface treatment yakavandudza zvakanyanya kusimba kweshear yemodified-epoxy bonded aluminium specimens zvichienzaniswa neasina kurapwa uye anodized substrates.Mhedzisiro yakanakisa yakawanikwa nelaser simba ingangoita 0.2 J/Pulse/cm2 uko simba rekugera rimwechete rakavandudzwa ne600-700% zvichienzaniswa neiyo isina kubatwa Al alloy, uye ne40% zvichienzaniswa nechromic acid anodizing pretreatment.
Nzira yekukundikana yakashanduka kubva pakunamatira kusvika kune yakabatana sezvo nhamba ye laser pulses yakawedzera panguva yekurapa.Chiitiko chekupedzisira chave chakabatana nekuchinja kwe morphology sezvakaratidzwa neelectron microscopy, uye kugadzirisa kemikari sezvakaratidzwa neAuger uye infrared spectroscopy.
Imwe inonakidza mhedzisiro yelaser ablation isimba rainaro rekugadzira nzvimbo isingaderedze nekufamba kwenguva.
Fortune Laserakaita basa rakakura kutarisa kuti laser yekuchenesa inopindirana sei nenzvimbo mune dzimwe nzira dzinoshamisa.Laser kurapwa kwealuminium kunogadzira madiki macraters ari pamusoro anonyungudika uye anenge panguva imwe chete anoomesa kuita micro crystalline layer iri pamusoro iyo inotonyanya kusaita ngura kupfuura iyo aruminiyamu pachayo.
Tichitarisa chati iri pazasi, inoratidza mutsauko uripo pakati pesimba rekugera rechisungo uchishandisa aruminiyamu yakarapwa nelaser uye aruminiyamu yakabatwa nemakemikari.Nekufamba kwenguva, sezvo nzvimbo dzave dzakafumurwa kune yakanyorova nharaunda, kugona kweiyo kemikari yakabatwa pamusoro kuti isungirire mutsime inodzikira zvakanyanya nekuti mwando unotanga kuita ngura pamusoro, nepo laser inorapwa pamusoro ichichengeta kusadzivirirwa kwayo mushure memavhiki ekuratidzwa.
Nguva yekutumira: Aug-12-2022
