NGHIEN CUU - TRAO DOI NGHIEN CUU VAT LIEU HOP KIM BOT MA SAT TREN CO S6 NEN SAT UfNG DUNG TRONG CHE TAO CO KHf A STUDY OF IRON-BASED FRICTION MATERIAL APPLIED IN MECHANICAL MANUFACTURING Ha Minh Hung', Vu Thanh Soli= 'Vien Nghien ciru Ca -Trucmg Dai hpc Sao D6, Bp Cpng Thuang TOM TAT Bdi bdo giai thieu kit qud nghien ciru ve tinh hinh su dung mot sd phu tiing mau mdn chdng ho cua cdc phuang tien van tdi ngdnh Khai thdc than, dd cd chi tiet guoc phanh tdu van tdi khoang sdn bdng dudng sat khai thdc hdm Id a Viet Nam hien vd dua vdn de cdn nghie cuu che tgo chung bdng vdt lieu luyen kim bot mat thay the vat lieu truyen thong Y tudng ndy da du ca quan qudn ly Bd Cdng Thuang cho phep trien khai thuc hien mgt de tdi nghien ciru khoa hoc ke hogch nam 2014, tgi Vien Nghien ciru Ca khi, nhdm muc tieu Idm chit cdng nghe che tgo sdn phdm vd ddnh gid khd ndng irng dimg thuc tien a quy md phdng thi nghiem chuyen ngdnh Tir khoa: PM - Luyen kim bot; BMTT - Gudc phanh tdu cdn vet van tdi khodng sdn bdng duang sat; KHCN-Khoa hoc vd cdng nghe ABSTRACT The results of the study in using some parts of railway means of transport used in coal mining, which is consist of the brake of the transporting train in Vietnam was introduced in the paper It was also recommended new method, using powder metallurgy production with high stability in coefficie of friction and low wear resistant replacing traditional material applied to fabrication of brake friction materials The idea was allowed to be done in practice by Industry and Trade Ministry officer in National Research Institut of Mechanical Engineering It has been seen as a science topic that may increase our ability of handling new technologyfor manufacturing, and verify its practical application in laboratory scale Keywords: Powder Metallurgy (PM); The Breake of mineral transporting train (BMTT); Science and technology TAP CHi CO KHi VIET NAM, S6 nam 2014 P t H www.cokhivietnam.vn •••• NGHIEN cuu-TRAODOI l.DATVANDE ngoai nuoc, vat lieu ma sat luyen kim bot dugc su dung de che tao cac chi tiet phanh va cac cum truyen dgng cua xe to, may nong nghiep, may mo, may xay dung, may bay, may cong cu, may dap, may ep san xuat co Viec su dung cac loai vat lieu ma sat de lam viec a dieu kien lam viec khong c6 boi tron (ma sat kho) nhu: Khop noi, phanh ham, khop noi dien tir thay the cho vat Heu thep va gang diic hoac cac vat lieu ma sat gan ket vai nen bang gang hoac thep truyen thong tru'oc day cho phep tang ben va tin cay lam viec cung nhu tang hieu qua su dung cua cac cum ma sat may moc thiet bi Vat lieu ma sat luyen kim bot dong thai tao dieu kien tot de thiet ke, che tao cac cum ma sat co ket cau mai vai he so ma sat cao, kha nang lam viec on dinh, chiu mai m6n va ben nhiet cao cua ca hai chi tiet cap doi [1,2] O Viet Nam, gan day, tai mgt so co so nghien cuu chuyen nganh hang khong [3]; Truang Dai hgc Bach khoa Ha Ngi [4]; Vien Nghien cim Ca (Bg Cong Thuang) [5,6,8]; Vien KHCN Mo luyen kim da bat dku co nghien cuu ve van de ch^ tao vat lieu ch6ng ma sat lam bac trugt [7] va vSt lieu ma sat lam dia ly hgp [8] bang cong ng]i| luyen kim bot, nhung chua du co so khoa hgc va thuc tien de ung dung thuc su vao phuc vu san xuat cac nganh kinh te nuoc ta Dac biet la nganh Khai thac than va khoang san Vi6t Nam hien nay, co mgt so lugng Ion cac thigt bi, may moc va xe van tai mo dang hoat dgng dirac nhap tu nhieu nguon cung cap nuac ngoai, hang nam can thay the nhieu phu tung mau mon chong hong, co chi tiet guoc phanh tau van tai khoang san bang duang sat nhu anh chup cho tren hinh Nhimg phu tiing phai nhap ngoai vai gia cao, nhieu khong chu dgng duac theo ke hoach san xuat Vi vay, nhom tac gia chgn huang nghien ciiu che tao vat lieu to hgp nhieu l»jp su dung cho viec che tao eac dia ly hgp dgng ca xe to van tai mo nham muc tieu tien toi thay the nguon hang nhap khau, tiet kiem ngoai te voi nang luc ve cong nghe & thiet bi hien co nuoc la rat can thiet va co kha nang ling dung cao