Nghiên cứu mòn vật liệu lớp phủ plasma hợp kim ni67cr18si54b trong quy mô phòng thí nghiệm

NGHIEN CUfU-TRAO DO I

NGHIEN Cl>U MON VAT LIEU LOT PHO PLASMA

Hap KIM Ni67Cr18Si54B TRONG QUY MO PHONG THI NGHIEM

RESEARCHING WEAR OF 67NI18CR5SI4B ALLOY MATERIAL LAYER COATED BY PLASMA

SPRAYING IN THE LABORATORY SCALE

NCS. Tran Van Dung, PGS.TS. Ha Minh Hiing. TS. Phan Thach Ho

Vien Nghiin edu Co khi - Bo Cong ThUPng.

Bdi bdo gidi thiiu veket qud nghiin cdu thUc nghiem xdc dinh do mon cua ldp hdp kim Ni67Crl8S￾i5B4, nhdn dUdc bangphUdngphdp phun plasma tren mdu hinh tru vd cap doi vdi hdp kim dong ldm bac

trUdt tren thiet bi thd mon nhanh trong quy mo phong thi nghiim. CUdng do mon cua vdt lieu ldp phu

nhgn dUdc d hai chi do phun bgt hdp kim trUc tiip vdo chi tiet true vd thong qua mgt ldp lot cong nghe

trung gian NiSAl Id mgt trong cac tieu chi quan trgng dedU bdo tuoi ben cua chi tiet mdy trong dieu kien

sd dung trin thUc ti. Kit qud thi nghiem dUdc xd ly bang phan mem tin hgc chuyen dung, dUa ra cdc do

thi trUc quan ve lUdng mon d dHu kiin thd nghiim nhanh d cdc che dg tdi trgng khac nhau. Ddy cung

Id mgt phdn kit qud nghien cdu thUc nghiim cua nhom nghien cdu tgi Trung tdm CTA-NARIME, Vien

Nghien cdu Cd khi vd co sU trUc tii'p tham gia cua nghiin cdu sinh.

This article introduce on experimental research Results for determining abrasive wear of the

67Nil8Cr5Si4B alloy layer, received by plasma spraying method, on cylindrical samples working with

copper alloy-bush bearing, working on wear-testing machine in the laboratory scale. Frictional properties

of the coating material layer, received from two types of alloy powder spaying: directly on journal and on

advance spayed lining layer, is one of the important criteria to predict the durability of parts in the specific

conditions. Test results processed by specialized computer software show visual graph of the wear in the

test conditions with different loads. This is a part of experiment research result of research team of CTA￾NARIME Center of National Research Institute of Mechanical Engineering, in which Ph.D. students is a

key member

1. DAT VAN DE: tiet may dang true ndi trin, viec dng dung eong

nghe phun phu de tao ra mpt ldp phu be mat co

Doi vdi cie cbi tiet dang true dang hong chiiu day khoing 1-^3 mm ed eo tinh eao va chiu

thudng eac vi tri lip vong bi hoae bac do. Dp ben mai mon tdt hon loi thep bin trong true li mpt

mon d cac vi tri nay cung la mpt yeu to inh hUdng hUdng nghien edu tiin tien dang dUpe cae nU6c

den tuoi thp cua ehi tie't may. eong nghiip phit trien i p dung. L/u diem chinh

cua eong nghe phun phu, dac biit li phUPng phip

Trong ehe tao mdi vi phue hoi eic chi phun plasma, li dam bi o dp ben bim dinh 16p

TAP CHf CO KHf VI$T NAM • S6 1+2 (Thing 1+2 nam 2013)