Meusburger

Producing the ideal material for making a mould base

| Author / Editor: / Rosemarie Stahl

The daily capacity of the Meusburger furnaces is 240 tonnes.
The daily capacity of the Meusburger furnaces is 240 tonnes. (Source: Meusburger)

The decision for a mould base is a crucial factor in mould production. If the material has not been treated correctly, it can lead to deformation. Additionally, standardised and well-prepared mould bases already have the correct size and all the necessary holes.

The F-Plates from Meusburger come complete with pillar and screw holes and are available from stock in sizes of 96 x 96 mm to 996 x 1196 mm. Another advantage that Meusburger offers is the widest range of materials with 29 materials. Additional side-drilled mould bases with almost quadratic space utilisation save, in many cases, the use of the next largest mould.

When steel plates are produced, tension results in the material due to the various machining processes – caused, for example, by the effect of irregular temperature influences. Following the inspection of incoming goods, Meusburger heat-treats all steel plates for stress relief in one of its three furnaces at approximately 580°C for 24 hours. This creates optimal conditions for low-deformation processing of parts. The daily capacity of the three furnaces at Meusburger is 240 tonnes.

With stress-relieving heat treatment, the tension in the material is minimised without changes to the microstructure or strength. This is a great advantage during subsequent machining. If there was still tension in the material, it would, for example, cause deformation during sawing or milling. During stress-relieving, it is important to heat the plates slowly and consistently and then maintain this temperature for six hours. This guarantees that thick plates are also heated through to the core.

The subsequent slow, regular cooling period of 14 hours in the furnace is even more important. Here, the plates are cooled at approximately 35°C per hour. If they were cooled more quickly, tension - and even the formation of cracks - could once more occur in the material.

Big improvements are often achieved by simple ideas. At Meusburger, everything is done with the benefit for the customer in mind. The systematically coordinated standard hole pattern provides a continuous system from the smallest through to the biggest mould base.

Mould bases with standard hole pattern

High-precision mould bases from stress relieved high-grade steel.
High-precision mould bases from stress relieved high-grade steel. (Source: Meusburger)

Cooling channels can be inserted between the guiding hole and the screw holes of any size of mould. The distance to the edge remains the same for each guiding diameter. The standardised hole patterns of all Meusburger moulding plates, including those used for sliding core moulds, follow the same principle and offer many advantages to the customer.

At first sight, a small but — on closer inspection — very valuable feature is the lever slot provided on all moulding plates with a pillar diameter larger than 20 mm. The recessed edges, which are a unique feature offered only by Meusburger, facilitate the manual opening of the mould in the split line face and the removal of moulding plates. This makes the process noticeably easier for the mould-maker.

To enable quick and easy alignment, the moulding plates are provided with a high-precision alignment edge parallel to the guiding holes.

It’s both simple and ingenious: With the thread provided in each of the F 70 risers of the Meusburger mould base, the clamping plate can be removed together with the risers when disassembling the mould. This enables the mould-maker to quickly access the ejector set during a revision. Afterwards, the risers can be easily reassembled together with the clamping plate. The result? Double time-savings!

Being successful with standardisation

Vorarlberg – a production location with many benefits.
Vorarlberg – a production location with many benefits. (Source: Panograf | Marc Walser)

The Meusburger Group is one of the leading international manufacturers of high-quality standard parts, hot runner and control systems and selected workshop equipment. Reportedly, more than 18,500 customers all over the world make use of the numerous advantages of standardisation and benefit from the company's 50-plus years of experience in working with steel. The permanent availability of products makes the Meusburger Group the reliable global partner for die, mould and jigs and fixtures construction.

High-precision standard parts by Meusburger optimise the entire process chain. With the consistent use of high-quality standard parts, you can benefit from a large cost-saving potential in die, mould, and jigs and fixtures construction and the subsequent production of parts. All plates and bars by Meusburger are heat-treated for stress relief and therefore provide a reliable basis for high-grade moulds, dies and jigs and fixtures.

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