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MANUFACTURING TECHNOLOGY of BIMETALLIC CASTINGS BY HIGH DURABILITY
Innovations Market for R&D April 16 � 20, 2007
Hannover
Y. AftandilyantsTel.: 380662246796
E-mail: [email protected] � Technological Institute of Metals and Alloys of
National Academy Science Ukraine Kiev
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PRESENTATION OVERVIEW
INTRODUCTION
STATE OF BIMETALLIC TECHNOLOGY
ACHIEVEMENT OF THE BIMETALLIC TECHNOLOGY
IMPROVEMENT OF THE BIMETALLIC TECHNOLOGY
CONCLUSION
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PROBLEM DESCRIPTION & MARKET NEED
THE POSSIBILITIES OF THE EXISTING MONOMETALLIC ALLOYS ARE PRACTICALLY EXHAUSTED.
THE PROBLEM CONNECTED WITH:
� INCREASE OF TECHNICAL RESOURCE OF MACHINE;
� REDUCTION OF CONSUMPTION OF HIGHLY-ALLOYED ALLOYS;
� INCREASE OF WEAR RESISTANCE OF MATERIALS.
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CLASSIFICATION OF METHODS OF BIMETALLIC CASTINGS PRODUCTION
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POURING LIQUID METAL UPON SOLID BILLET
CONSECUTIVE POURING OF LIQUID ALLOYS INTO MOLD
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POURING LIQUID METAL UPON SOLID BILLET
Bimetallic castings of parts of agricultural machinesand grinding-milling equipments.
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CONSECUTIVE POURING OF LIQUID ALLOYS INTO MOLD
HAMMERS AND BEATERS (WEIGHT 1,5-75KG) FOR CRUSHERS
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MATHEMATICAL SIMULATION OF KINETIC OF BIMETALLIC CASTINGS SOLIDIFICATION
3142 qqqqÒ
cýô
õ
Np
0
q1 q3
Ò
q2
q4
(Ò, õ, ó), c(Ò, õ, ó), (Ò, õ, ó)
Fig.Two-dimensional nonstationary problem of heat exchange
Alteration of system heat content is determined by difference of incoming and outgoing heat flows in differential view it will be written
as Fourier equation
y
Òyx
Òx
Òcýô
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Base
Working layer
Time, s
Temperature of contact surface
Distance from working layer, mm
KINETICS OF SOLIDIFICATION OF ROLLS
Contactsurface
Pouring time
Dis
tanc
e fr
om w
orki
ng la
yer,
mm
Tem
pera
ture
, îÑ
BaseWorking layer
Time, s
DEVELOPMENT OF STRESS IN BIMETALLIC BEATER
Tension stress, kg/mm2Compression stress, kg/mm2
760770
780790
800810
820
860
Temperature
Temperature field
90 mm80 mm70 mm
TARGETED MARKET SEGMENT
� Cement industry;
� Grinding industry;
� Milling industry;
� Mine industry;
� Glass industry.
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Competitive Matrix
Important product
characteristics
Our product
�Steel casting
company�(Ukraine)
�New Technologies�
(Russia)
Wear resistance 2,5 - 6,0 1,0 -
Application of high-alloyed
materials
0,5 - 0,6 1,0 1,0
Time between of restoration
6 � 8 1,0 -
Cost 0,5 1,0 1,0
CONCLUSION
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Contact information
Y. Aftandilyants
Tel.: 380662246796
E-mail: [email protected]
Physico � Technological Institute of Metals and Alloys of National Academy Science Ukraine
Kiev
