Pressure die used for dust-free drawing aluminum-coated steel

Abstract

The invention relates to the aluminum-coated steel technology field, and especially relates to a pressure die used for dust-free drawing aluminum-coated steel. The pressure die used for dust-free drawing aluminum-coated steel comprises a wire drawing die and a pressure die. Hard alloy is arranged at two ends inside the pressure die. The wire drawing die and the pressure die are connected through a transition joint. The transition joint and the pressure die are fixed in a retainer. Inner holes are arranged inside the wire drawing die, the transition joint and the pressure die. The pressure die used for dust-free drawing aluminum-coated steel can meet gap requirements needed by dust-free drawing aluminum-coated steel, and installation of the structure can be finished for one time, a phenomenon that the transition joint inclines and aluminum-coated steel drawing is affected cannot be generated. The inner hole of the transition joint is slightly larger than an inner hole of a common pressure die in size, and even if a little of deformation is generated under action of a large compacting force, normal drawing of aluminum-coated steel cannot be affected. The service life of the die is prolonged, even if deformation of the transition joint is large, replacing of one joint is only needed, and the investment cost is saved.

Description

technical field [0001] The invention relates to a pressure die, in particular to a pressure die for dust-free drawing of aluminum-clad steel. Background technique [0002] For a long time, the drawing process in my country's aluminum-clad steel production process has been using the traditional solid lubricant powder forced lubrication drawing technology. This technology will produce dust in the drawing and subsequent processes, which will affect the health of operators and cause air pollution. For the installation method of powder drawing pressure die and wire drawing die, see figure 1 .At the same time, the gap between the pressure die and the drawn aluminum-clad steel clad rod is relatively large. At the same time, in order to ensure that the lubricating powder does not leak, a large pressing force is added when the wire drawing die and the pressure die are connected. In order to ensure that the liquid does not leak, the pressing force is appropriately increased when the ...

AI Technical Summary

Problems solved by technology

In order to ensure that the liquid does not leak, the pressing force is appropriately increased when the drawing die and the pressure die are installed, so plastic deformation occurs at the contact part between the pressure die and the drawing die. At this time, the cladding rod often breaks when the aluminum-clad steel is drawn, and After each fracture, the disassembly of the pressure mold often requires repairing the deformed part, from figure 1 It can be seen from the figure that the size of the head of the pressure die is relatively small. Such a pressure die will be scrapped after being used several times, which wastes a lot of manpower and material resources.

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