Strong plastic-to-metal bonds in the injection molding process

Complete turnkey solution for coating with the Plasma-SealTight® process

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Complete turnkey solution for coating with the Plasma-SealTight® process

The turnkey, fully automated PTU1212 plasma cell was developed by Plasmatreat to enable the shop floor implementation of Plasma-SealTight^® technology. The cell, which can be adapted to suit any conventional injection molding machine, enables the very rapid and environmentally friendly inline pretreatment of mass-produced plastic-metal components.

The PTU1212 contains everything the pretreatment process needs, from generator, robot, control technology, PCU plasma control unit and plasma jets to cables and consumables.

Compact unit: Turnkey PTU1212 Plasmatreat unit

Internal view of PTU1212 showing plasma nozzles, plasma control unit and automated parts handling system.

Plasma process engineering in the automated manufacturing of hybrid components

Two plasma systems placed side by side perform the plasma treatment. In the first step the robot – or in the case of smaller versions, an XY axis system – passes the metal inlay beneath an Openair-Plasma^® nozzle. Here the surface of the inlay is cleaned to molecular level to remove all contamination and create the conditions for optimum wettability. Immediately after cleaning, the second plasma system applies the functional coating to the metal inlay using the Plasma-SealTight^® process.

Inline Plasma-SealTight® process

Example showing integration of PTU1212 in an injection molding process.

Plasma-SealTight^® at a glance

innovation and cost reduction

globally available industry solution
inline use in injection molding production lines (no external transport routes)
reliable and reproducible process
high development potential (new material combinations)
area-selective pretreatment at very high speeds

increased component quality

significantly improved bond adhesion
corrosion protection of metal inlay
media-tightness in the joint interface
highly precise and reproducible compounding process ensures consistent product quality

Environment and sustainability

complete elimination of solvents, primers and acids
no VOC emissions
very low use of chemicals (precursors)
high energy efficiency due to low energy consumption of the plasma unit
high energy efficiency due to the elimination of transport routes for semifinished components

more on this topic

Complete turnkey solution for coating with the Plasma-SealTight® process

Related press articles

More Material Combinations, Lower Costs

Kunststoffe international (01/2020)
open document

Symbiosis between metal and plastic

OBERFLÄCHEN / POLYSURFACES (Nr. 2/2017)
open document

Cover story:
Hybrid technology – Adhesion as a benchmark

IST (International Surface Technology 1[3]/2017)
open document

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Plasmatreat News

New Research and Testing Equipment for Highly Technical Surface Treatment

Plasmatreat constantly faces shifting demands as a result of new ideas, regulations, and standards. Customers are increasingly approaching the company with unique and innovative project requests. Consequently, the capacities of the technology and research center will now be expanded to include a class-6 cleanroom.