Mold:Nomura Plating

We can supply the mold with the back frame in total system,
but we do the copper plate surface treatment itself as customer's request.
We emphasize that we can propose the suitable specification
after checking the customer's used mold actual conditions.

Production of higer quality steel materials is demanded. Therefore, the problem which was not experienced in mold until now, either has occurred. Then, taking advantage of the technology which applies various coatings complexly based on experiences, we propose the optimal surface treatment specifications including selection of a copper plate material. Moreover, we propose not only the improvement of the copper plate cooling slit design in heat analysis (right figure) but a copper plate design.

<Size check>

Sizes, such as a position, the depth, etc., such as a copper plate back slit at the time of new work and a bolt hole, are measured. Moreover, the finished plate thickness is measured, and the coating thickness is calculated from the plate thickness before and after plating or thermal spraying

<Coating hardness>

Coating hardness is checked using ultrasonic hardness tester.

<Flatness>

Bend of a copper plate is measured by placing a straight board on a copper plate and checking the aperture.

<R accuracy check>

The ruler which modeled R curve specified is placed on the copper plate which has R curve, and R accuracy is measured by checking the aperture.

<Ultrasonic test>

From the copper plate surface, an ultrasonic wave is transmitted to an inside and non-stuck existence is checked by the ultrasonic wave (echo) reflected.

<Surface roughness>

Surface roughness of copper plate surface is checked using surface roughness tester.

<Water pressure test>

By putting the appointed water pressure, it checks whether there is any leak by poor assembling of copper plates and back frame. Moreover, for the long hole processed copper plate, it checks that there is no leak from the part which plugged up the hole by caulking plug insertion.

<Appearance check>

The position and level of problems, such as a crack and corrosion, is checked and the photos of them are taken.

<Wear check>

The dent on the surface of a copper plate is measured, and the amount of wear is checked.

<Heat crack check>

The existence and the position of cracks are checked by PT, and it is shaved locally and the depth is checked.

<Plate thickness check>

Copper plate thickness is checked to know the thickness which can be shaved before reconditioning.

Exchange is needed if the above problems occur in copper plate.
We propose the best specification in consideration of a visitor's used environment after investigating these problems precisely.

Please click for the details.

•Hard chromium plating •Electroforming •Nickel plating •Copper plating
•Nickel-iron alloy plating (Tough Alloy-I)
•Cobalt-nickel alloy plating (Tough Alloy-II) •Thermal spraying (Tough Coating-I)