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The purpose of this publication is to provide existing and potential
users of copper and copper-base castings with information on the
current practices of Canadian brass and bronze foundries and ingot
manufacturers. The information summarizes the various casting
processes used to manufacture high-quality and durable copper,
brass and bronze castings for use in an extremely diverse range
of applications.
Seven foundry methods are described: sand casting, centrifugal
casting, continuous casting, investment casting, die casting,
permanent mold casting, and shell mold casting. Each method has
specific features and attributes which makes it particularly suitable
for certain applications. Alloy selection must also be considered
in combination with the casting method, since the wide range of
copper-base alloys available provides the designer and user with
a broad spectrum of materials and processes from which to choose
a combination that will meet the requirements of a specific application.
Excellent electrical and thermal conductivity, high corrosion
resistance, excellent bearing qualities, good machinability, natural
colour and ease of finishing by polishing or plating, and good
joining properties by welding, brazing or soldering are the most
important attributes of copper and copper alloy castings.
Modern Canadian foundries have the capability to produce the finest
copper alloy castings. The latest foundry practices combined with
high levels of quality control and quality assurance programs
ensure that their products will meet the requirements of a broad
range of industrial customers.
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