Cassette roller dies for the production of wire

Cassette roller dies for the production of wire

In recent years, more and more Russian producers of steel wire pay attention to the technology of wire drawing using a roller die. The development of technology and technology enabled the manufacture of carbide rollers alloys based on tungsten carbide, which greatly enhanced the stability of this kind of drawing tools. Modern roller dies allow at high speeds to produce not only wire of periodical profile, but also high-precision wire with a smooth surface. Using a roller die in the wire manufacturing technology has significantly reduced the cost of its production due to the increased use of mechanical preparation of the surface of the hot metal to the drawing and the overall growth rates of drawing. One of the limiting factors to use roller die — is the inability of companies to organize their own tool shops mass production of carbide rollers. The main reason — the lack of necessary equipment. Although the solution may be in a different plane.

Analysis of the cost of production of the wire using the roller die of the main European manufacturers shows the feasibility of using this type of technological tools in Russian enterprises.

Another important factor for the use of this technology for the production of wire — is to improve the environment. And the solution of environmental problems, not only in the fact that the reduced share of etched metal, to avoid the use of lubrication technology, without which it is impossible to drawing using traditional dies.

In this article we want to introduce the reader to the structural features of cassette roller dies known German firm GSG GmbH, a member of the group Wafios AG and Ernst Koch GmbH & Co. Cassette portage PKG / DMM-T with pairwise arranged in one plane with two groups of rollers used for the production of low-carbon and high-carbon round wire with a smooth surface in diameters ranging from 0.8 to 3.0 mm, with a tolerance diameter in the range from -0.04 to -0.06 mm. The cassette roller die PKG / DMM-T can be used for conventional drawing mills with both vertical and horizontal arrangement of the drums. The rollers are made of tungsten carbide and possess a high working resource. The cassette roller die is equipped with a cooling system of rollers, which can be connected to a common water cooling system drawing mill. In this type of dies one roller mounted on a stationary axis cooled, and the other — on the cooled eccentric axis. The range of adjustment of the distance between the axes of rollers 1 mm. Adjusting hand, a high degree of accuracy is done through a hex end of the eccentric axis of the conventional wrench. Roller die can be set as an output section drawing mill, and intermediate. The design of the cassette roller die PKG / DMM-T enables simplified set-up in the process of drawing and obtain accurate and stable parameters of the manufactured wire. The cassette roller die PKG / DMM with pairwise arranged in mutually perpendicular planes of the two groups of rollers is used as the roller die for the production of low-carbon and high-carbon wire of circular cross section with a smooth surface in diameters ranging from 0.8 to 3.0 mm. Location rollers in mutually perpendicular planes provides manufacturing wire diameter tolerance in the range of -0.02 to -0.06 mm.

The cassette roller die PKG / DMM can be used for drawing mills with both vertical and horizontal arrangement of the drums. The rollers are made of tungsten carbide and possess a high working resource.

Cooling and adjusting the rollers corresponds to the design solutions used in the model

CSC / OMM-T. The range of adjustment of the distance between the axes of rollers 1 mm. Manual adjustment is possible on the hexagon of the eccentric axle trailer conventional wrench.

Unlike roller die PKG / DMM-T is to design the arrangement of groups of rollers, can significantly reduce the overall length of the die, which is important when it is installed on the draw bench with a small diameter of the drum due to limited seats. Also, due to the construction of more than twice reduced the total weight of the cassette roller die model RKO / HMW and mutually perpendicular arrangement of groups of workers rollers produces wire with higher requirements for its roundness and surface quality. Another model cassette roller die PKC / v with two groups of rollers arranged in pairs in mutually perpendicular or inclined to the vertical axis by 45 ° planes used for the production of low-carbon and high-carbon wire of circular cross section with a smooth surface in diameters ranging from 1.0 to 5.0 mm with a tolerance diameter in the range from -0.02 to -0.06 mm. The cassette roller die RCC / ON drawing mills used on both vertical and horizontal arrangement of the drums. The rollers are made of tungsten carbide and possess a high working resource. Cooling and adjusting the rollers corresponds to the constructive solutions used in the model PKG / DMM-T. The range of adjustment of the distance between the axes of rollers 1 mm. Adjust as models PKG / DMM-T and PKG / DMM manual shall be performed by the eccentric axle trailer hex wrench usual.

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