We
specially in supplying Copper Mould Tube, Crystallizing
equipment of continuous casters, Mould cooling jacket, Repair of
copper moulds tube, etc.
Herewith please find our some products which we have been exported
at present as following for your reference:
Equipments &Spare parts for Continuous Casting Machine.
1.Copper mould tube( square ,rectangle and round )
2.Crystallizing equipment of continuous casters
3.Mould cooling jacket.
4.repair of copper tube moulds
COPPER MOULD ALLOYS
The copper alloys chosen for the moulds must maintain their
physical properties at the operating temperatures of the continuous
casting process.
The temperature gradation from the inner wall of the mould to the
outside face of the mould can cause serious distortion problems
,and it is imperative that the correct alloy is chosen for the
various operating conditions.
STANDARD MATERIALS
Phosphorus de-oxidised copper
This alloy has been proven to be excellent for the manufacture of
moulds in the continuous casting of billets .The main composition
of this alloy are Cu +Ag 99.90min,P0.0015/0.040.
Copper -Silver alloy
The addition of a small amount of silver ,whilst not increasing the
melting point of copper ,does increase the recrystallisation
temperature by almost 100℃,and also helps to give better thermal
conductivity at the operating temperatures.
This alloy is normally used in moulds for the continuous casting of
blooms and slabs .In this case ,the moulds are much thicker than in
the billet moulds ,and the moulds temperature can be higher.The
main composition of this alloy are Cu+Ag99.90 min. Ag 0.08/0.12 O
0.004/0.012.
COPPER MOULD TUBE
The continuous casting of molten steel into billets ,blooms and
slab products ,has been highly refined over the years into an
extremely sophisticated system .The continuous casting process is
expected to produce metallurgically sound products at the lower
possible cost ,and this is being achieved in many steelworks
throughout the world.
Copper moulds have played an important role in the development of
the continuous casting process .Their funcition is to receive the
molten steel and to allow rapid heat transfer from the steel to the
cooling water to enable quick solidification.
The mould must exhibit excellent thermal conductivity ,be
resistant for thermal erosion ,and be resistant to distortion from
thermal stress .So far only copper and a few copper alloys meet the
above conditions ,both economically and technically.
SOLIDIFICATION
The rate of solidification in the continuous casting process
dictates the speed of production .The molten steel ,which is in
contact with the inner faces of the copper mould ,starts to
sllidify as rapidly as the heat is extracted ,forming a shell .The
shell increases in thickness as more heat is extracted ,and
eventually total solidfication is achieved .the process is similar
to the solidification of ingots in ingot moulds .In continuous
casting ,the whole process is speeded up ,with the aim to produce
and homogeneous shell growth.Consequently ,the mould is an
important part of the continuous casting process ,and the
manufactured quality of the mould plays and important role in their
length of life.
INNER SURFACE COATINGS
Over the years ,Metallurgists and Engineers have been working
together to develop better continuous casting moulds .The steel
companies require a more economical mould which will give a longer
service life .Surface coating of the inner walls of the mould has
given the best results to date .Coatings available are Chromium and
Nickel plating .Also,a combination of the two give good results on
slab casting.
"Quality first,reputation above all" is our forever business principle. We serve the international market with first class quality product and update service.
Await your soonest reply!
Thanks and Best Regards!
Alex SALES MANAGER / GE
ENGINEER
CHINA MOBILE NO.: +86
13614281720 INDONESIA MOBILE NO.: +62
89681687563
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