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SUMMITTEK pledges to maintain our world-class performance standard. This means providing the best value to our customers over the long term. We continue to invest in technology and equipments to maintain our competitive position.
Our manufacturing plant features a state-of-the-art chrome line imported from Germany. Using this plating line, we can custom-make our mould tube to meet customer specifications for various applications. |
Copper Mould plates are usually chromium- or nickel-coated, or variously coated with combinations of both metals. The most appropriate solutions in this case are closely linked to each customer's specific requirements and operational conditions. Please refer to the following table for the details of the properties of surface coatings:
Coating |
Hardness
(HV) |
Advantages |
Disadvantages |
Cr |
>600 |
High Hardness
Good chemical stability |
Hardness falls quickly when temperature increases, cohesion strength between coating and mould plate is low and the Cr coating is easy to peel |
Ni |
180~250 |
Good chemical stability
Good wear-resistance |
Low Hardness, Low wear-resistance under high tempeture |
Ni-Fe |
320~420 |
High Hardness, High wear-resistance |
Low thermal stability, low elongation, easy to form cracks under high temperture |
Ni-Co |
220~320 |
High hardness, high wear-resistance；Good thermal stability；low stress，anti-thermal cracks under high temperature |
Low anti-hot tearing |
Co-Ni |
220 |
Good chemical stability espeically thermal stablity；high anti-corrossion and anti-wearance |
Easy to form cracks at meniscus , Cobalt is costly |
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