NGHIEN CU'U-TRAO D O I NGHIEN Ciru, CHE TAO B Q T P H U N HE Wfl^ - TiO^ BANG NGUYEN LIEU TRONG NU^6C RESEARCH, MANUFACTURE AI^O, TiO POWDER SPRAY SYSTEM BY DOMESTIC MATERIALS ThS Pham Dang Loc', ThS Bui \ an Khoan' 'Phong Thi nghiem Trpng diem Cong nghe Han va Xir ly bd mat, Vien Nghidn cuu Ca •Trudng Dai hpc Su pham Ky thuat Hung Yen TOM TAT Bdi bdo trinh bdy cdc ket qud nghien cuu che tgo bpt phun he 41,0^ - 710- bdng nguyen lieu nudc theo lieu chudn Quoc te (60/40) su dung cong nghe phun plasma de phit Cdc chi lieu ddnh gid tinh chdt cua lap phii: Dp cung dp mdi mdn, dp bdm dinh, dp xop khd ndng chiu nhiet Tir khoa: Cdng nghe phun phu lap phu Al ,0^-TiO ^ phirong phdp che Igo bpt phun he Al.O^-TlO.^ dn mdn, mdi mdn ABSTRACT This paper presents the results of research, manufacture A,.0^ - TiO, powder spray svstem by domestic raw materials according to international standard (60/40), the use of plasma spray technology The indicator compares of the coating: hardness, grinding corrosion, adhesion, porosity, heat resistance Keywords: Spraying of technology, alumina-titania powder of alumina-titania Corrosion Abrasion DAT \ \N DE Cong nghiep hda chat, cong nghiep v$t lieu la nganh cong nghiep mui nhpn doi vdi cac nudc phat trien nhu: My Nga Phap, Nhat Trung Qudc, Trong do, nganh Cong nghd luyen kim bpL che tao bpt phun rit phai trien coatings, manufacturing methods Mpt s6 hang noi tidng tren thd gidi da phat tridn, img dung Idp phii he Al,03 - Ti02 len cac chi tiet lam viec moi trudng khac nghiet nhu hang: Praxair, Metallisation, Sulzer Metco Inframat Corporation (AT), Powder Alloy Corp (PAC) Hi?n d Viet Nam chua co dan vi nao san xuat, nghien cuu che tao vat lieu »" ISSN 0866 - 7056 TAP CHi CO KHi V I £ T NAM, S6 nam 2016 www.cokhivietnam.\n NGHIEN CU'U-TRAO eOl bpt phun he A.l,0,-TiO,; bdt diing phun phii plasma ciia nudc la phai nhap ngoai vdi gia rat cao va phu thupc vao ngudn cung cap hang tir nudc ngoai, vay de tai dat muc tidu che tao vat lieu phun phii he AI,Oj-TiO, de co the chii dpng ngudn bpt nudc, dong thdi tang gia tri khai thac khoang san - quang ciia Viet Nam NQI DLNG NGHIEN CL L 2.1 Nghien cihi, lya chon phuong phap che tao hot phun he A1,0, - TiO^ 2.1.1 Phdn loai cdc phirong phdp che tgo vdt lif tl bpt phun a) Quy trinh che tgo bpt phun theo phircmg phdp luyen kim bpt * Quy trinh che tao san pham theo phuang phap luyen kim bpt gdm budc: Budc 1: Chd tao vat lieu dang bpt Budc 2- Tao hinh: San pham tron lin th^t deu roi dua vao khuon ep ap lyc 100 l.OOOMpa Budc 3: Thieu kdt: Duy tri d nhidt dp va khoang thdi gian xac dinh chan khong hoac moi trudng bao ve, se xay qua trinh kdt tinh lai tao cac hat mdi da canh So quy trinh cong nghd chd tao \ at lieu bpt thd hien d hinh Phoi ligu \A trpndfa C X I Gia cong sau lh.eu kel | j Hinh Sado quy trinh che tgo vdt li^u bpl * Dac diem ciia phuang phap: Cac loai kim loai va hap kim dang bpt sau dupc chd tao xong dupc dem phoi hop vdi tl le thich hop va trdn deu Hdn hpp bpt dupc tao hinh sau dd dupc dem nung tdi nhiet dp thap han nhidt dp ndng chay, qua trinh nung dupc gpi la su thidu kdt Vat lieu kim loai bpt duac che tao trdn ca sd cac bpt kim loai * Uu didm: it hao phi vat lieu; Co thd didu chinh phin bpt theo y mudn * Nhupc didm: Cau tnic td vi: Khong sit chat luon co 16 rong dan ddn dp x6p Idn b) Quy trinh che tgp bpt phun theo phuong phdp phoi trdn * Dac diem ciia phuang phap: - Su dung phuang phap co hpc phy thupc vao nhieu ydu to: Phuang phap Iron, thiet bj Iron, thdi gian tron tdc dp tron - Su dung nguyen lieu bpt sin co: Yeu cau ve kich thudc hat ty trpng, dp tinh khiet, rat cao ndn khau luv en tron bpt diu ISSN 0866-7056 TAP CHi CO KHi VIET NAM S6 nam 2016 wwT*,cokhivietnam.\ n NGHIEN Cl>U-TRAO l vao rat quan trpng * Uu didm: Cdng nghe san xuat bpt thyc hidn de dang; gia so vdi cac phuang phap tren vdi dieu kidn thidt hi may mdc d Vidt Nam (Phong Thi nghidm) nhdm De tai lya chpn phuang phap chd tao bpt phun he Al,OjTiO, theo phuang phap phoi tron NpytebJuMi •^^jMlOi.riQ: * Nhuac diem: Nguon vat lidu bpt dd san xuat phai nhap tir ben ngoai; Khau lya chpn nguydn lieu dau vao rat quan trpng Saf^bcnhopbollbBl Can vH lieu bgi duog It Hmh Sa dd quy trinh che tgo bdt phun theo Hinh Sa quy trinh phdi trdn bpt phun he phuang phdp phdi trdn c) Lua chpn quy trinh che tgo bdt phun Sa dd cau tnic bpt phun he Al,0,-TiO, sau dupc che tao theo hai phuang phap tren, the hien d hinh 2.1.2 Phdn tich mgt sd tinh chdt cua lop phdheAip-TiO^ a) Tinh chiu mdi mdn Lap phli he Al,0,-TiO, co tinh chiu mai mdn tdt, dupc img dyng cho cac chi tiet lam vide mdi trudng chiu mai mon cao Ftann; ph^i kiyfn Un b«t Phunn* p b ^ pjifii iron Kha nang chju mai mon ciia Idp phii he ALO,-TiO, phu thupc vao tai trpng tac dung, thdi gian, chd dp lao lap phii Hinh Sa dd cdu true bpt phun /ip AI.O^-TiO b) Ldm viec moi tnrong axil, baza Ca hai phuong phap trdn ddu co nhiing mi nhu'^c diem khac nhung Ldp phii he Al,0,-TiO^ cd tinh chiu axil, baza tot, lap phii he tra vdi axil, baza ' ISSN 0866 - 7056 TAP CHf CO KHi VIET NAM S6 nam 2016 www.cokhivietnam.vn NGHIEN CU'U-TRAO D O I Kha nang chiu axit, baza ciia ldp phii he ALO,-TiO, phu thudc vao nong dp, thdi gian lam vide, chd dp tao Idp phii c) Ldm viec dieu kien nhiet dp cao Nhiet dp cung la mpt yeu td rat quan trpng quydt dinh ddn tuoi thp ciia ldp phu cflng nhu chi tidt may Nhict dp cang cao kha nang nut, tach ldp cang Idn Ldp phu he Al,0^-TiO, CO thd lam v idc dupc nhidt dp khoang 538''C 2.1.3 Phdn tich cdc dnh hir&ng cda cdc thong so cong nghe che tgo den chdt lir^g cda vgt lieu bpt phun he Al,O-Ti0, Co rat nhieu cac thong so cdng nghd che tao anh hudng den chat lupng ciia vat lieu bpt phun he Al,0,-TiO, nhu: Nguydn li^u bpt dau vao (kich thudc hat, tv trpng, dp tinh khiet, cau tnic mang tinh the ), ty 1? phdi Irpn (loai may tron, thdi gian tron, phuang phap tron ) kich thudc hat (sang bpt) nhiet dp say Bdng Thdnh phdn vdt lieu bdt TiO, \ Thanh phan hoa hoc % ! Khoang ea ban Cau lao tmh the Mail sac Mat dp(gcm'') ' Ca hat (pm) Al.O >9K2 •f-\lO- Cau tao Iinh the Mau sac M-il Jo(gcnV) C& hat (nm) ! > "i s 15-45 Mau bpt dupc quet bat dau a 20,000*' va kk thilc 70,010°, buac quet: 0,030-/1 giay, nhiet phong 25"C, buoc song quet 1,5406 A", cau trie \ at lieu bpt TiO, dang anatase, mang tinh the dang y-TiO„ co ty trpng 3,78 g/cm\ ph4n ty Ic bpt TiO, la'W,47»„(hinh5) i Hinh Ket qud phdn lich mau bpt TiO, Lycgiac Trang > 3.5 ' Tti dien Irani: Bgt TiO,: Bdng Thdnh phdn vdt Hfu bpt Al.O,: Khoang co ban iY-TiO * Ket qua phan tich mau bpt: a) Nguyen lieu bptAl,0-TiO, ddu vdo Thanh phan hoa hoc % ' TiO, > 98.2 45 Hinh Kinh quet hien vi (Sl: \t) mdu vdi //pu hot TiO cua de tai ISSN 0866-7056 TAP CHi CO KHi VIET NAM, S6 nam 2016 yfw vv.cokhivietnam.vn NGHIEN CUU - TRAO DOI Tir hinh ta thiy kich thuac bot tir 15,51-4^^m ^ N h u \ay mau hot TiO, ma nhom de tai mua dam bao dp tinh khiet dat 98,47% \ a kich thuac: 15,51 ^ 45 ^im CO kich thudc hat tir 15.2-35 ^m •=> Nhu vay, mau bdt A1,0 ma nhom Be tai mua dam bao dp tinh khidt 98.25% kich thudc hat: 15.2-35 ^m b) Anh htrdng aia kich thudc ligf ('idngphdn logi) Bpt A1,0,: Mau hot dupc quet bSt diu a 20,000" \a kk thuc 70,010", buoc quet: 0,030°/1 giay, nhiet dp phong 25"C, buoc song quet 1,5406 A" Cau trie vat lieu hot A^O^, mang tinh the dang Y - A , , CO ty 3.55 g cm', phin ty le bpt A1,0, la 98.25''o (hinh 7) Kich thudc hat co \ai tro rat quan trpng qua trinh che tao bpt phun; vdi phuang phap phun plasma kich thudc hat khoang 5-120 pm Kich thudc hat anh hudng cung anh hudng den ty trpng, dp chiu mai mon, dp xop, dp Cling, dp bam dinh ciia ldp phu c) Anh Inrcmg cua qud trinh phoi tron (mm' trdn) Qua trinh phoi tron anh hudng den su ddng ddu ciia hdn hpp bpt, sy dong nhat ciia hdn hop cd anh hudng rat Idn ddn co ly tinh ciia san pham Co phuang phap Iron la: Tron co hpc va tron hoa hpc -u_^Jj Hinh Kc! qud phdn lich mdu bpt Ai.O^ Trdn ca hpc: Su dong ddu cua hon hpp bdt phu thupc vao nhieu yeu td nhu: Phuang phap tron, thiet bj tron, thdi gian trpn, - Trpn hoa hpc: La qua trinh ket tiia tir dung dich kim loai phu gia tren be mat hat CO sd Thong thudng ngudi ta sir dung dung dich kem theo sy khuay trpn vdi bpt kim loai CO sd Moi trudng trpn cung anh hudng kha Idn ddn chat lupng cua hon hpp Hmh Kmh quel hicn vi iSEMi mdu vdi lieu bdt Al.Oj cua de tdi Hinh ta thay vat li?u bpt phan tich d) Anh hudng cua nhiet dp sdy Anh hudng ciia chd dp say ~ nung la ' ISSN 0866 7056 TAP CHi CO KHi V I £ T NA.M, Sd nam www.cokhivietnam.v n 2016 NGHIEN CU'U-TRAO D(!)l mpt cac v eu to quan trpng anh hudng nhat djnh ddn sy hinh cau tnic vat lidu Al,0, TiO, Ndu say bpt ALO, ddn nhidt dp 800"C cd SU chuydn pha tir y-Al,0, sang dang 5- ALO^ Ndu s^> hot TiO, d dOO-C co sy chuvcn pha vdi cau tnic khac tir cau tnic anatase sang dang rulile Ket luan: Trong qua trinh phdi trpn, nhom dd tai say bdt phun he ALOrTiO, d 150 C khong lam thay doi tinh chat vat lieu - Tv trpng: 3.5 ± 0,3 (g'cm') a) Cong dogn I: Sdng phdn logi - Nguydn lieu bdt A1,0,,, TiO, sau dupc tuyen chpn tien hanh sang neng phan loai de lya chpn cac cd hat dam bao yeu cau cong nghe qua trinh chd tao bdt phun he AI,03-TiO, - Say bpt nguydn lieu trudc sang: I50''-170"C/120phuL e) Anh huong ciia ty le phoi trpn Hidn nay, trdn thd gidi co rat nhidu hang san xual bpt phun he Al,0,-TiO, ndi tidng Cac cong thuc co ban cua he vai lieu ve ty le phoi trpn theo tidu chuan qudc td: 97 3.87:13, 60:40 Nh6m Bh tai lya chpn ly le phoi trpn 60: 40 2.2 Quv trinh chd tao phdi trpn bot phun - Qua qua trinh phan tich lya chpn phuang phap cong nghe chd tao bpt; dac didm cau tao, linh chat ciia timg loai nguyen lieu bpt phiin A1,0„ TiO, cac chi tidu cong nghe ciia vat lieu phun c^n chd tao, nhdm De tai da tien hanh nghien cuu va xay dyng quy trinh cdng nghd chd tao bpt phun h? AI,0,-TiO^ theo cac tieu chu^n Qudc Id, sa dd dupc thd hidn d (hinh 4) - Ydu cau chat luong cua bpt phun he \1,0,-Ti0,canchd tao: Thanh phan hda hpc: 60% A1,0 ; 40",, TiO,; - Thidt bi cdng ngh?: Qua Irinh sang phan loai de lya chpn cd hat dam bao ydu cau cong nghe dupc thyc hien trdn may sang rung - Kidm tra sau sang phan loai: Sau hoan edng doan sang thu dupc san pham bpt A1,0,, TiO, vdi cac kich thudc hat khac (5; 10; 15; 35; 45 pm) tidn hanh kiem tra va xac dinh cac cd hat theo tidu chudn: Bpt A1,0, (10 ^ 25 pm) va bpt TiO, (15-45 pm)." b) Cong dogn 2: Phoi iron hon hap bdt Alp^ vd TiO, - Phoi trdn la cdng doan quan trpng nhat quydt dinh ddn sy ddng ddu cua hon hop bpt phun - Yeu cau ciia san pham: + Thanh phSn bpt phun h? Al^O^ va TiO^: 60%AI,O, va 40%TiO,; - Kich thudc hat: 10 ^ 45 pm; + Dam bao dp dong deu ctia hdn hpp - Kiem tra chat lupng phdi trpn; ISSN 0866 - 7056 TAP CHi CO KHi V I £ T NAM Sd nam www.cokhivietnam.vn 2016 NGHIEN CU'U-TRAO DOI ' Dung may phan tich XRD de kidm tra ty le phdi trpn va sy ddng ddu cua qua hinh trpn + Kidm tra kich thudc hat sau phdi trdn bang kinh hien vi quel \'^ ^ 10 mmgiav Toe dp cap bpt 50 g/phut Luu luong \r 60 1/phut Luu lugng H, 15 1/phiit Chieu day ldp phii 0.3 - 0,4 mm 3.2 Ket qua phun thir nghiem tren mat thu c) Cong dogn 3: Sd} hdt - Hdn hop bpt Al,Oj-TiO, sau da phdi trpn dupc kidm tra va tien hanh cong doan say dd lay di het luong hcri nudc hcri am CO bpt Thidt bi say: Qua trinh say dupc thyc hien trdn tii say nhiet dp thap - Qua trinh thyc hidn: Sa\ d 150''C thai gian 60 phtit d) Cong doan Kiem tra vd dong gdi sdn phdm Sau sav xong hdn hpp vat lieu bpt he Al,0,-TiO, nguoi tir tir hi say, vat lieu bpt nguoi ta cho vao Ip de tranh hidn tupng hiit am anh hudng den chat luong bpt phun Bdng Kit qua sdn phdm bpt cua De tdi: |TT : Chi tieu kiem tra Dp cirng le \i (HV 0251 Do \6p l"ol Soc nhict (lan) Dp mai mon (mg) lOdm va 500m ' DO bam dinh (MPa) Bot ciia De tii ;64.:'s 2.42 95 Nl.20,67\a 98,2 N2, 16.63 \a 87.4 14,05 Tir bang kdt qua tren ta thay, san pham hot sii dung phun dupc bang phuang phap plasma Cac kel qua trdn da phan nao danh gia dugc chat lugng cua bpt phun h? AI,Oj-TiO, dugc chd tao bang nguyen lieu nudc KET L l AN KET QL A \ \ T H A O L l AN 3.1 Thdng so cong nghe phun hot he M,0, - TiOj san pham bpt cua De tai Bdng Thdng so cong nghi phun plasma Dien ap phun ' Don ; Jici' luin Khoaivj '1 phun Toe dp phun Up 4(1 V lp = 850A - 102 mm - Da chd tao thii nghidm va budc dau phun cong bpt phun h? AL(),-TiO, bang nguyen lieu nudc - Gia che lao vat lidu phii he AL0,-TiO, bang nguyen lieu nudc re han so vdi san pham bpt nhap ngoai tir ( K L S O s o v d i 100-2()0USI) ky ISSN 0866 - 7056 TAP CHi CO KHi VIFT NA.M Sd nam 2016 www.cokhivifinam.vn NGHIEN CLfU - TRAO D6\ - Ung dung san pham bdt cua De tai chd lao len san pham bam lam vide moi trudng axit; kei qua chav thu, kidm tra dupc don vi thu nghiem danh gia cao, cho thay san pham bpt va ldp phu ciia de tai rat phii hgp Viec ap dung cdng nghe phun phii ldp bdt he ALO.-TiO, len budng bam thi gia khong cao, mat khac lai cd thd phuc hdi thay the ldp phii de dang, keo dai tuoi tho ciia budng bam ndn san pham co the ling dung rat tdt cho cac bam axit nganh Hoa chat • [4] [5] [6] [7] Ngay nhan bai: 12/6/2016 Ngav phan bidn: 18/8/2016 Tai li^u tham khao: [I] [2] [2] [3] [8] Nguyen Van Thong; Cdng nghe phun phu bdo ve vd phuc hdi NXB Khoa hpc va Ky thuat 2006 Hoang Tiing; Cdng nghe phun phu vd irng dung NXB Khoa hpc va K> thual 2006 P222-32; Aluminia oxide bO% Titanium dioxide 40%, Metallisation 2.9.12 ISSUE; I 95-12 YAO Sun-hui, SL Yan-liang and KAO Wen-xian, Thermal Shock Performance of A1203Ti02 Air Plasma Spray Coatings, [9] Taiwan, 2011 Snehlatakumari Roll Effect of Ti02 Addition in AI203: Phase Evoluuon, Densification, Microstructure And Mechanical Properties, No-109CR0676 2013 V Fervel B Normand and C Coddet: WearVol 230(1999).p 70 Meidong Wang Leon L Sha\\' "Effects of the powder manufacturing method on microstructure and wear performance of plasma sprayed alumina-titania coatings" USA, 2007 YAO Sun-hui, SU Yan-liang, and KAO Wen-xian, Thermal Shock Perfonnance of A1203/Ti02 Air Plasma Spray Coatings Advanced Materials Research Vols 328330 pp 853-856 Switzerland, 2011 Giovanni Bolelli, Valeria Cannillo, Luca Lusvarghi Tiziano Manfredini Wear behaviour of thermally sprayed ceramic oxide coatings Dipartimento di Ingegneria dei Material! e delPAmbiente University a di Modena e Reggio Emilia, Via Vignolese 905, 41100 Modena, MO Italy 2006 A Rico, J Rodriguez E Otero, P Zeng, W.M Rainforth Wear behaviour of nanostructured alumina - titania coatings deposited by atmospheric plasma spray 1191-1197 of Wear, 2009, Spain iSSN 0866 - 7056 TAP CHi CO KHi VIET NAM S6 nam 2016 v^ w w.cokhivietnam.vn ... AN 3.1 Thdng so cong nghe phun hot he M,0, - TiOj san pham bpt cua De tai Bdng Thdng so cong nghi phun plasma Dien ap phun '' Don ; Jici'' luin Khoaivj ''1 phun Toe dp phun Up 4(1 V lp = 850A -... Hmh Sa dd quy trinh che tgo bdt phun theo Hinh Sa quy trinh phdi trdn bpt phun he phuang phdp phdi trdn c) Lua chpn quy trinh che tgo bdt phun Sa dd cau tnic bpt phun he Al,0,-TiO, sau dupc che... bpt phun he A.l,0,-TiO,; bdt diing phun phii plasma ciia nudc la phai nhap ngoai vdi gia rat cao va phu thupc vao ngudn cung cap hang tir nudc ngoai, vay de tai dat muc tidu che tao vat lieu phun