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Reel-to-reel plating

Whatever the materials to be processed are pre-plate strips or stamped strips, the challenge is to make sure the plating process is tailored to the specific needs of the customer.

Using high-tech systems with the flexibility to adapt to individual requirements, IMOC produces surfaces with precisely defined functional characteristics. Thanks to the largest machinery outfit in Asia, well qualified personnel, electronic monitoring of the systems and continuous analytical testing of the electrolytic baths, we are able to guarantee production with high quality.

IMOC independently designs and develops machinery in accordance with the highest German standards, enabling swift adaptation to new market conditions through customized solutions in a short timeframe.

Specialties

Plating of plug connectors in form of blades, pins, springs and bushes
Plating of square and round wire
One-sided plating of contact springs
Internal plating of closed contact springs
High selective gold plating of contact blades
Stripe on strip
Plating of lead frames for integrated circuits
Plating of precision parts for common electronic applications
Plating of finest stainless steel nets and foils
Direct gold plating of stainless steel

Roll-to-roll electroplating finds extensive applications in metal processing, including ferrous metals, copper alloys, and other stamping strips or pre-plated materials with maximum dimensions of 220mm in width and 3mm in thickness.

Techniques

Defined dipping of the belt into the electrolytes can be carried out with the help of this method whilst screens reduce the outflow areas to a minimum. A further development is the selective controlled immersion plating where the belt is moved selectively with the help of a dipping depth control.

The continuous advancement of the selective wheel method allows us to refine sensitive jacks, springs, blades and lead frames in accordance with latest requirements. This method involves guiding the materials to be plated over a rotating wheel which is dipped into an electrolyte container. The exact refinement area is determined by the maskers revolving in the precision guides.

These are designed for specially stamped, pre-stamped and solid strips to create a one-face or double-face plating. This method involves the vertical passing of the conveyor by at least two rotating belts along an electrolyte jet facilitating selective plating by the shape and arrangement of the belt screen in operation.

This method makes it possible to plate one or several stripes on one or both sides. When this method is used the belt runs vertically along a punched foil and is covered on the rear with synthetic material whilst the front is passing the stretched foil. The jet application itself is arranged in such a way that the empty parts are optimally immersed.

The brush technique we have developed can be used for the continuous throughput of blade and spring contacts and is a considerable cost saver; by using appropriately formed parts it eliminates high tooling costs for partial coverage. In this technique the precious metal is plated very precisely in the functional area of the components. The brush anode is available in different forms which enables very specific finishing variants.

The precision of the spot plating method enables us to refine functional surfaces of pre-punched and embossed wrought products. The spot plating tool consists of a flexible masking chain rotating around a compact plating cell. During this process the belt is covered in soft material at the rear whilst the plating side is running over a crawler-type mask. This mask is punched with the relevant spot shapes and the electrolyte is jetted in during the cycle.

* Patented Technique