ProTecGM

Breakthrough Technology from a New Patented Alloy Thermally Sprayed and Vacuum Fused

for Maximum Performance Full cavity ProTec coating for blow and blank moulds

Stronger, with Castolin Eutectic

A major advance in glass container manufacture

Enduring Performance…

Stronger, with Castolin Eutectic

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ProTecGM

Increase efficiencyProTec GM durability reduces cleaning, repair and rotation of equipment.

Reduce swabbingEnhanced release and lubricity of Protec GM drastically reduces the need for swabbing. Some swabbing requirements have been completely eliminated.

Extend component lifeOperating experience has shown that component life can be extended 4 to 6 times standard.

Improve pack rates Overall gains in pack rates have been demonstrated at 3%, resulting in considerable gains in operating margins.

Enhance health and safetyReduction in swabbing rates leads to less operator involvement with moving equipment and reduced inhalation risks.

ProTec Coated Blanks

Stronger, with Castolin Eutectic 3

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ProTecGM

Improve wear resistance

Improve glass finish

Improve definition

TECHNICAL INFORMATION

The CoatingProtec GM has been developed specifically as full cavity protection for the glass container industry, for the impro-vement of wear and release characteristics. It is capable of sustained operation at high temperatures and can withstand thermal shock and rapid thermal cycling encountered in the manufacture of glass containers

The ChemistryProtec GM is a nickel-rich alloy including the elements chromium, iron, boron and silicon. It is patent protected by Castolin Eutectic.

The Coating ProcessProtec GM is applied in two key operations. Alloy powder is thermally sprayed to the total cavity surface of mould blanks. This is followed by vacuum furnace fusion. Under vacuum conditions, a sold-state diffusion of the sprayed layer into substrate results in a uniform dense coating with a strong, metallurgical bond (70 to 80 ksi) and an entirely pore-free coating with very fine microstructure.

Coating PropertiesThe high nickel content of Protec GM imparts consi-derable toughness and wear resistance, to withstand

stringent temperature requirements for extended run lengths. The coating also possesses greatly enhanced lubricity and release properties.

MachinabilityDue to the very fine and uniform microstructure of Protec GM, and a hardness of around HRc 40, the surface is easily machined, achieving a mirror surface by honing and polishing. The coating can be engraved, the surface retaining sharp contours for extended periods of opera-tion.

Heat TransferThough the thermal conductivity of Protec GM is less than the cast iron of the base metal, the uniform, thin layer (normally 0.5 mm) presents minimal resistance to heat dissipation to the mould or blank body. The strong attachment of the coating to the component with its dif-fused interface also assists in unimpeded heat transfer.

Other PropertiesTypical thermal properties are compared with those of cast iron

Property ProTec GM Cast Iron

Density (g/cc) 8.3 6.9Specific Heat 0.11 0.11Thermal expansion (x10 -6/°C) 13.8 12.7 Thermal conductivity (W/m/°C) 13.3 42.5

ProTec Coated Moulds

Stronger with... Castolin Eutectic

WEAR & FUSION TECHNOLOGY

For further details, please visit

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