During this time, Bodycote assisted with testing by the UK mining industry to establish the best corrosion resistant coating. Bodycote supplied a variety of components using different coatings processes, to ascertain the most suitable coating for hinge pins used in the mine roof support systems.
The Sherardized components withstand the aggressive conditions and abrasion from the coal dust filled atmospheres and are installed in a coal mine in the North East of England under the North Sea, where conditions are particularly wet and acidic.
Conclusions from these tests established British Coal’s specification for roof support system corrosion protection from 1980 onwards. To this day, Sherardizing is firmly established as the preferred corrosion protection for hinge pins in mine roof support Systems, and has been a key element of exports to the USA, Australia, South Africa and China.
Reasons for specifying Sherardizing:
- Long-term corrosion protection
- Uniformity of coating for functionality of the product
- Abrasion resistance
- Proven effectiveness
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