ZINC
Touchstone has earned numerous awards as an industrial problem-solver,
new product developer, and applied research laboratory for hundreds
of manufacturers in a wide range of business sectors. Our unique
capability as an industrial problem-solver is based on the diversity
of our highly experienced technical staff, supported by over $10
million worth of in-house laboratory equipment and testing facilities.
The following examples illustrate some of our contributions to this
business sector:
- Two, zinc die castings were examined to determine the reason
for failures which had occurred during machining. Evaluation found
that one fracture was the result of a cold shut during the casting
operation. The other crack developed in an area that contained
a significant amount of shrinkage and gas porosity. Both problems
are related to mold and metal temperature as well as feed rate
and timing during the casting process.
- A coil-coater developing a new, coated, roll-formed steel product
requested that Touchstone determine whether the higher-than-normal
operating temperature of the curing oven had any affect on the
brittle zinc/iron layer always present in galvanized steel. The
results of a study at Touchstone where the manufacturing conditions
were reproduced in the laboratory found that there was no increase
in the size of the zinc/iron layer.
- Traditionally the galvanized coating on steel has contained
approximately 1-% lead by weight. When a major steel company changed
its process to eliminate the lead, Touchstone performed qualification
testing on the material to be utilized by a major automotive company.
Tests were made of the ductility and the corrosion protection
of the zinc layer.
- A modern truck plant was experiencing peeling of the paint on
the exterior of their roof panels. An investigation at Touchstone
found that the zinc substrate lacked an effective pre-treatment
coating.
The above examples are only a sample of our work in this area.
We would be pleased to provide any additional information you may
require. We also invite you to review examples on our website of
work that we have performed in support of other business sectors.
Please contact one of our Project
Managers to discuss your manufacturing problem. We would welcome
an opportunity to add you to our rapidly growing list of satisfied
customers.
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