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• Treatment of cutting plates with very small holes:
To avoid damaging the cutting edge when driving the electrode into the hole, use the foot pedal
and proceed as follows:
For holes smaller than Ø 1.5 mm, grind back the Ø 1.2 mm electrode by approx. 3/10 mm smaller
than the hole to be coated. Select a low coating thickness and a weak vibration intensity. With
the foot switch not actuated, insert the electrode into the die exactly parallel to the hole.
Actuate the foot switch and carefully coat the entire inner circumference of the hole. Make
sure that the electrode is always guided exactly parallel to the bore and that the discharge
spark is visible along the entire length of the electrode. Be sure to release the foot switch
before pulling the electrode out of the bore.
• Cold welding / erosion of the drawing radii or fl ow radii on punches and dies:
First coat the radii thickly (30 μm), then recoat with reduced layer thickness (10 μm).
If necessary, apply a third coat (2 μm). Lapping of the coating must be perfect.
• Grooving:
Coat the area with weaker pressure.
• Wear on the cutting edges of punching knives:
Sharply grind the cut edges and thinly coat. Lightly lap the coating with silicon stone.
Blunt cutting angles of relatively large tools can be coated with medium coating thickness and
then with reduced coating thickness. Overall, the coating should not be thicker than 8 μm.
Bending and pressing
• Erosion / cold welding / wear on bending jaws and bending punches:
Coat the wear points. Select the coating thickness according to the die size and the precision
of the die. Lapping of the coating must be perfect.
• Erosion / cold welding / wear on stamping machines:
First coat thickly (30 μm), then recoat with reduced layer thickness (10 μm). If necessary, apply
a third coat (2 μm). Lapping of the coating must be perfect.
Extrusion
• Wear:
Pretreat the wear areas with micro-sandblasting and then coat. Select the coating thickness
according to the die size and the precision of the die. We recommend applying a thicker coat-
ing fi rst, recoating with a reduced coating thickness and, if necessary, applying a third, even
thinner coat. Lapping of the coating must be perfect.
Cold forming of screws, nuts, bolts, rivets, etc.
• Wear:
If possible, fi nely sandblast the wear areas and then coat with a medium-thick layer. Depend-
ing on the surface fi nish required, recoat with a reduced layer thickness and, if necessary,
apply a third, even thinner layer. If necessary, lap the coating.
Synthetic resin and duroplastic injection moulds, rubber moulding
• Wash-out of injection channels and injection pins / crimping burrs / wear and wash-out of
sideshifters / wear of cores and casting mouthpieces of injection nozzles / adhesive injec-
tion-moulded parts:
Coat wear areas and glue joints. We recommend applying a thicker coating fi rst, recoating
with a reduced coating thickness and, if necessary, applying a third, even thinner coat. Lapping
of the coating must be perfect.
• If pinch burrs form on rubber parts, coat the end faces of the mould closing sections to such an
extent that the mould closes properly.
Die casting technique
• Adhesive injection-moulded parts / wash-out of injection channels and injection pins / wash-
out and erosion of sideshifters / formation of pinch burrs due to inadequate mould closing:
First coat wear and adhesive areas thickly, then recoat with reduced coating thickness.
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