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Coating, Pickling and Galvanising
The protective specialities reviewed here
developed as a necessity of the making of steel,
which is no sooner produced than it begins to
rust. Coating, pickling and galvanising – essential
to the tube and pipe industry from earliest times –
only gained in importance as the products of that
industry have grown in value. The rejection, on final
inspection, of any made object hands the maker a
loss. When the workpiece is a high-end tube that
is extremely expensive to produce and needs to
last a long time, such as those used in automobile
manufacturing, the loss can be very steep.
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Innovation and development of roll
for steel pipe and cold roll forming steel
Yuan Houzhi, Liu Xingyi, Zhang Ning –
Shandong Province Sifang Technical Development Co Ltd,
China
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102
13-15 September 2011
Cutting, Sawing & Saw Blades
The sundering of a material whose molecular
structure resists separation is a difficult exercise.
The cutting operation on a high-speed tube mill –
across a profile at once hard and light as air – is
more challenging still, from its high requirement
for accurate intervals and fine tolerances to the
destructive potential of its detritus. The products
and services reviewed in this section are offered
by people whose dedication to the ideal of a
clean-cut tube is such that they see hardly any
daylight between cutting and end finishing.
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CONTENTS