New tempering method

With the new LongLife tempering method from Craco, screens and cutting edges made from the premium-grade wear steel Cracox can be additionally hardened. The process is applied primarily to those areas exposed to the highest wear stresses. With this method, a 500 hardness Brinell (HB) Cracox steel can be turned into a 600 HB steel at the treated areas.

 

The Linz-based Austrian bag Basalt AG, a customer of Craco GmbH for over a decade, consists of six subsidiary manufacturing companies with numerous production sites at which Craco products are used. Thanks to the LongLife tempering method, the durability of, for example, cutting edges on wheel loaders (Fig. 1) at ballast processing plants could be improved. With the wide spectrum of applications for cutting edges, the advantages lie mainly in the hardening of fibres. As a result, the edges (Fig. 2) are sharper longer and lifetime increased. For screens the main benefit is that the perforations keep their shape longer and the edges remain sharp. Firstly, this guarantees a longer lasting consistent quality of the finished product, and secondly it noticeably increases the useful life of the screen.

 

Cracox is used exclusively as a base material for LongLife-tempered products. The highly wear resistant special fine-grained steel is rated a premium-grade steel. Around 8 000 t of this are used in the wear protection sector every year. Cracox combines high hardness with high apparent yield limit and tensile strength thanks to innovative alloying. Its good, economic machinability and outstanding wear protection properties were the main reason for Cracox being awarded the Innovation Prize by the German state of the Rhineland-Palatinate.

 

CRACO GmbH, Atzelgift (D),

Tel.: +49 2662-9552-0, www.craco.de

x

Related articles:

CRACO: One specialist – 1000 possibilities

The customers of the medium-sized business from the Westerwald region are satisfied as regards their visit to the Recycling Aktiv 2015. The good discussions with the CRACO representatives confirmed...

more
Issue 03/2010

SSAB Swedish Steel AB

Hardox wear plate, Weldox high-strength structural steel plate Toolox pre-hardened tool and machine steel are available up to a plate thickness of 160 mm depending on hardness grade. For mobile...

more
Issue 04/2010

bauma 2010 – Craco GmbH

Shortly after its introduction on the market, the high-performance maXforce teeth series developed by Craco has already firmly established itself on the market. For a complete series, however, the VIP...

more
Issue 04/2014

Hot regeneration

For a customer from the steel industry, HS Schoch, the specialist in machine attachments and wear components, was contracted to regenerate a loading shovel used in a steelworks The shovel is used to...

more
Issue 11/12/2008 Aus der Industrie / From the Industry

Wear Specialist Relies on High-Tech

The Waldsassen-based company Bergauer Regenerierung GmbH is currently investing in an extension to its facilities and additional processing machinery. A new 630-t bending machine was put into...

more