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For cold rolling industry the rolls are etched for generating desired surface
roughness so that the sheets being rolled out can
have inbuilt roughness to facilitate proper bonding
of paint. During the rolling process, the roll loses
the surface roughness due to friction. Periodically,
these rolls are etched for maintaining desired
surface roughness.
The rolls being of harder nature, pressure type
Abrasive Blasting Machine using Aluminium Oxide,
Chilled Iron Grit of 12-25 mesh or steel shots of
coarser grade are quite popular.
The blasting equipment is featured with motorized
workcar with motorized job rotation facility . The
roll is loaded outside the blasting cabinet on
workcar which moves on track extension. The blasting
nozzle reciprocates while job rotates in blasting
cabinet. The operator is to simply load and unload
the job. The abrasive recovery is automatic and
fabric bag type dust collection system is
incorporated to keep the dust emission level within
permissible limits. |
