New ingenious coating for plastic tools

DTI has developed a new effective coating for tools used to mould plastic blanks. The new coating, “CrN-SS”, enables companies to increase productivity.

The new CrN-SS coating has both a harder and smoother surface than the conventional coatings on the market. The advantage of using CrN-SS is that plastic blanks can be removed from the moulds more rapidly and easily without breaking. The plastic blanks can also be worked to the same high quality under different temperatures. The method provides a more flexible, robust production platform, thus allowing more plastic blanks to be moulded per minute.

The CrN-SS coating is already routinely used in injectionmoulding of various plastic products like catheters, insulin pens and toys.

CrN-SS increases productivity A/S
Kenneth Winther Værktøjsfabrik is a case in point, having benefited from applying the new coating on injection moulding screws having wide-ranging applications.

- We cooperated closely with DTI, whose strong, professional consultancy and new, ingenious coatings have enabled us to increase our productivity and achieve major savings, explains CEO Kenneth Winther, and continues: What is more, our end-users have achieved more flexible production and been able to accelerate the process of moulding plastic blanks. We warmly recommend the new coating, as in our experience, it’s easier to work with than conventional coatings for injection-moulding tools – not to
mention that it also provides better protection from wear and rust.

FACTS
DTI has access to advanced technologies and processes that can produce hard, durable, corrosion-resistant and self-lubricating coatings on production tools and components for the industry.

The coatings can be used:

• to protect tools from wear during, for example, chip removing, cutting, die-cutting, bending and forming
• to minimise bonding and tearing when, for example, stainless steel or light metals are processed
• to solve tapering and tearing problems with plastic moulding tools
• to minimise corrosion problems at places like air outlets in injection moulds
• to minimise the incidence of tearing between stainless steel machine parts, etc.
• to minimise wear and tear of machinery components
• to reduce friction between moving parts
• to eliminate use of lubricants, thus allowing lubrication-free interfaces.