The components for our copper
brass heater cores are all manufactured in house. The distribution
and return tanks are stamped and formed from a brass strip by
progressive dies. The holes for the nozzles are then punched
in the appropriate configuration. The nozzles are cut, end formed,
and bent into the correct shape from raw brass tube stock. The
water channels and air fins are manufactured using an automated
process. The channel is stamped and formed from a brass ribbon
and the air fin is roll formed from a copper ribbon. The two
are then inserted together automatically and deposited into a
chute for core assembly. The fin and channel are marked with
the distribution and return tanks using universal framing fixtures.
Both faces of the core bodies and all corners are then run through
an automated flux and solder dipping process.
Once the core body soldering is complete, the nozzles are brazed
into place using unit specific locating fixtures. The Configuration
of the heater core is now complete and only finishing operations
remain. The heater cores are sent through a Slurry Blast Process,
which utilizes small glass beads and a water mixture to clean
and shine the end tanks of the core. The cores are checked for
leaks using air and water pressure test. Once the heater core
passes leak test, they are dried and packed out in individual
cardboard boxes with air pillow inserts.
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