Kieselstein is a German supplier of wire drawing machines and the worldwide market leader in draw-peeling technology
Due to increased quality standards and expectations, the request of many wire producers is defect free wire with a nearly perfect surface. Therefore processes of surface quality evaluation and technologies of surface improvement are gaining great popularity as seen in the spring wire industry.
With the draw-peeling process, layers with surface defects are eliminated by chip removal. This “intensive cleaning” removes grooves, scale scars, overlaps, scratches and similar defects at the surface area of steel wire, thereby improving product quality which enhances further processing of the wire. Besides steel the process is also used for non-ferrous metals and can be utilized for elimination of casting skins during production of copper alloys or for removal of oxides on aluminum and titan materials..
Multiplicities of uses require continuous enhancements of technology and linked mechanical engineering. Therefore KIESELSTEIN International GmbH, a German supplier of wire drawing machines and the worldwide market leader in draw-peeling technology operates a steady growing testing center in our premises in Chemnitz which provides a center for part submission warrant, feasibility studies and small subcontracts which are realized on production line. The testing plant allows the processing of steel wire in range of up to 8mm and wire of non-ferrous metals in range of up to 12mm. We estimate that the process itself is economically suitable for wire of up to 20mm. KIESELSTEIN has supplied many of these draw-peeling lines world-wide, for many materials, thus giving us and advantage from our vast practical experience, testing capabilities and engineering technology.
Due to this intensive development works – for 12 years – the basic structure of draw-peeling units, as the centerpiece of the technology, has been improved significantly. A new concept has been developed which offers significant advantages for particular fields of application as has been realized for superconductor application some time ago. Thereby draw-peeling of this material implicates particular mechanical engineering requirements and requires a very precise chip removal. Hence this system has been improved in order to use it for copper alloys.
A draw-peeling unit can be integrated into various lines and applications. Besides the use of draw-peeling plants as standalone solution, the integration into existing drawing machines is also possible. A process integration of the draw-peeling unit in combination with the drawing block in front of a wire rod drawing machine or a rolling mill for copper and aluminum machining as well as integration in drawing benches are possible.
In addition to continuous development of mechanical engineering the tools improvement is pushed by KIESELSTEIN. As in the past carbide tool were widely used, most of the present drawing dies are coated. Also PKD is used for processing of non-ferrous metals. In these cases the company cooperates with corresponding tool manufacturers. In cooperation with manufacturers of drawing lubricants and emulsions KIESELSTEIN can provide the complete technology including the necessary consumables to the potential customer. To build confidence there is always the possibility of doing tests within the already mentioned ranges at our plant in Chemnitz.