Sisebenzisa iikuki ukuphucula amava akho.Ngokuqhubeka ukhangela le sayithi uyavuma ukusebenzisa iikuki.Ingcaciso eyongezelelekileyo.
Kwinqaku lamva nje elipapashwe kwijenali yoMveliso woMveliso weeLeta, abaphandi baxoxa ngokusebenziseka kwesitshizi sentsimbi egxunyekwe ngamachiza ekwandiseni ubomi bomgubo kwimveliso eyongezayo.
UPhando: Ukwandiswa koBomi bePowder kwiMveliso eyoNgezelelweyo: IChemical Etching of Stainless Steel Spatter.Ikhredithi yomfanekiso: MarinaGrigorivna/Shutterstock.com
I-Metal Laser Powder Bed Fusion (LPBF) Amasuntswana okutshiza aveliswa ngamathontsi atyhidiweyo akhutshwa kwidama elinyibilikisiweyo okanye amasuntswana omgubo afudunyezwe kufutshane okanye ngaphezulu kwendawo yokunyibilika njengoko edlula kumqadi welaser.
Ngaphandle kokusetyenziswa kwemeko-bume engasebenziyo, i-reactivity ephezulu yesinyithi kufuphi nobushushu bokunyibilika kwayo ikhuthaza i-oxidation.Nangona amasuntswana e-spatter akhutshwayo ngexesha le-LPBF anyibilike ubuncinane ngokufutshane kumphezulu, ukusasazwa kwezinto eziguquguqukayo kumphezulu kunokwenzeka ukuba kwenzeke, kwaye ezi zinto ezinobudlelwane obuphezulu beoksijini zivelisa umaleko ongqindilili weoksidi.
Ekubeni uxinzelelo oluyinxenye lwe-oksijini kwi-LPBF luhlala luphezulu kunolo kwi-atomization yegesi, amathuba okuzibophelela nge-oxygen ayanda.
Stainless steel kunye ne-nickel-based ingxubevange spatters zaziwa ukuba oxidize ngokukhawuleza, iziqithi ezenza ukuya kwiimitha eziliqela ubukhulu.Ukongezelela, steels stainless kunye nengxubevange nickel-based, ezifana abo bavelisa isiqithi-uhlobo spatters oxide, izinto ezixhaphakileyo ngomatshini kwi LPBF, kunye nokusebenzisa le ndlela ukuba ngaphezulu eqhelekileyo ngakumbi LBPFF indlela abonisa ukuba ikhemikhali respotter respleed yesinyithi respotter.
(a) Umfanekiso we-SEM we-stainless steel spatter particles, (b) indlela yokuvavanya ye-thermal chemical etching, (c) unyango lwe-LPBF lwamasuntswana e-spatter e-deoxidized.Ikhredithi yomfanekiso: Murray, J. W, et al, iileta zoKwakha ezongezelelweyo
Kolu phononongo, ababhali basebenzise indlela entsha yokutsala imichiza yokususa iioksidi kumphezulu wentsimbi exutywe nentsimbi etshizayo.
Iqela labonisa indlela yokususa ii-oxidessunts zentsimbi engenalo, ngakumbi ezo zityhutyhelwe i-spatters ye-SPBIDS. .
Abaphandi bajonge ubushushu kunye ne-etchants ezimbini zensimbi ezingenasici.Emva kokuhlolwa kwinqanaba elifanayo lobungakanani, iingoma ezilodwa ze-LPBF zenziwe ngokusebenzisa iipowders ezinyulu ezifanayo, i-splash powders, kunye ne-splash powders efakwe ngokufanelekileyo.
Uluhlu lwe-LPBF yomntu ngamnye oluveliswe kwi-spatter, i-etch spatter, kunye ne-pristine powder.Umfanekiso ophezulu wokukhulisa ubonisa ukuba umgca we-oxide oxhaphakileyo kumzila we-sputtered upheliswe kwi-track sputtered track.
Ukukhutshwa kwendawo ye-Oxide kwi-316L ye-stainless steel splash powder yehla nge-10, ukusuka kwi-7% ukuya kwi-0.7% emva kokuba i-reagent ye-Ralph ishushu kwi-65 ° C kwindawo yokuhlambela amanzi ngeyure le-1. Imephu yendawo enkulu, idatha ye-EDX ibonise ukunciphisa amanqanaba oksijini ukusuka kwi-13.5% ukuya kwi-4.5%.
I-spatter edibeneyo ine-oxide ephantsi ye-slag yokugquma kumzila womkhondo xa kuthelekiswa ne-spatter.Ukongezelela, i-chemical etching of powder kwandisa ukunyanzeliswa komgubo kwi-track.Chemical etching inamandla okuphucula ukusebenziseka kwakhona kunye nokuqina kwe-spatter okanye i-mass-use-powders eyenziwe kwi-powders esetyenziswa ngokubanzi kunye ne-corrosion-resistant stainless steel powders.
Kuyo yonke i-45-63 µm yobungakanani boluhlu lwesayizi yesisefo, amasuntswana asele e-agglomerated kwi-spatter powders etshisiweyo kunye engatshitshwanga ichaza ukuba kutheni umthamo womkhondo womgubo ocoliweyo kunye nogayiweyo uyafana, ngelixa imiqulu yomgubo wokuqala imalunga ne-50% enkulu.
I-spatter edibeneyo ine-oxide ephantsi ye-slag yokugquma kumphezulu womzila xa kuthelekiswa ne-spatter.Xa i-oxides ikhutshwe ngokwekhemikhali, i-semi-bound and bare powders ibonisa ubungqina bokubopha okungcono kwee-oxides ezincitshisiweyo, ezibangelwa kukumanzi okungcono.
I-Schematic ebonisa iinzuzo zonyango lwe-LPBF xa i-chemically isusa i-oxides kwi-splash powder kwiinkqubo zetsimbi ezingenasici.I-Wettability egqwesileyo iphunyezwa ngokuphelisa i-oxides.Ikhredithi yomfanekiso: Murray, J. W, et al, Iileta zoKuvelisa ezongezelelweyo
Isishwankathelo, olu pho nonongo lusetyenziselwe inkqubo yokutshiza imichiza ukuhlaziya i-chemically ye-oxidized stainless stainless spatter powders ngokuntywiliselwa kwi-reagent ye-Ralph, isisombululo se-ferric chloride kunye ne-cupric chloride kwi-hydrochloric acid.Kwabonwa ukuba ukucwiliswa kwisisombululo esishushu se-Ralph etchant kwi-1 iyure-ibangele i-powder oxide kwindawo ye-10 ibangele i-powder oxide kwi-1.
Ababhali bakholelwa ukuba ukufakwa kweekhemikhali kunamandla okuphuculwa kwaye kusetyenziswe kwisikali esibanzi ukuhlaziya amasuntswana e-spatter asetyenzisiweyo kwakhona okanye i-LPBF powders, ngaloo ndlela inyusa ixabiso lezinto ezibizayo ezisekelwe ngumgubo.
Murray, JW, Speidel, A., Spierings, A. et al. Ukwandisa ubomi bomgubo kwimveliso eyongezelelweyo: ukufakwa kweekhemikhali ze-stainless steel spatter. Iileta zokuvelisa ezongezelelweyo 100057 (2022) .
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U-Surbhi Jain ungumbhali wezobugcisa ozimeleyo osekelwe eDelhi, eIndiya.Une-Ph.D.Ufumene i-PhD kwi-Physics evela kwiYunivesithi yaseDelhi kwaye uthathe inxaxheba kwizinto ezininzi zesayensi, inkcubeko kunye nezemidlalo.Imvelaphi yakhe yezemfundo kwizinto zophando lwezesayensi, ezikhethekileyo ekuphuhlisweni kwezixhobo ezibonakalayo kunye neenzwa.Unamava amaninzi ekubhalweni komxholo, ukuhlela kunye nohlalutyo lwefayile ye-2 epapashiweyo kunye nedatha yovavanyo lwe-2 yedatha kunye novavanyo lwedatha Amalungelo awodwa omenzi wechiza aseIndiya asekelwe kumsebenzi wakhe wophando. Unomdla wokufunda, ukubhala, uphando kunye neteknoloji, uyakonwabela ukupheka, ukudlala, ukwenza igadi kunye nemidlalo.
I-Jainism, i-Subi. (24 Meyi 2022) Indlela entsha yokufaka iikhemikhali isusa i-oxides kwi-oxidised steel stainless splash powder.AZOM.Ifunyenwe ngoJulayi 21, 2022 ukusuka https://www.azom.com/news.aspx?newsID=59143.
I-Jainism, i-Subi."Indlela entsha yokufaka imichiza yokususa iioksidi kumgubo oxutywe nentsimbi engenakutyiwa".AZOM.Julayi 21, 2022..
I-Jainism, i-Subi. "Indlela entsha yokufaka imichiza yokususa i-oxides kwi-oxidized stainless stainless spatter powder"
UbuJainism, iSubi.2022.Indlela entsha yokufaka imichiza yokususa i-oxides kwi-oxidized steel stainless splash powder.AZoM, ifikeleleke ngoJulayi 21, 2022, https://www.azom.com/news.aspx?newsID=59143.
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