SU1090764A1 - Apparatus for pickling and cleaning wire - Google Patents

Abstract

1. A DEVICE FOR Etching and CLEANING WIRES, containing a bath for a solution divided by partitions into cells with electrodes of opposite polarity, about t and h. In order to intensify the cleaning process and reduce costs, it is equipped with a device for alternating twist wire installed behind the bath in the course of movement, made in the form of two plates, with the upper gummed plate installed with the possibility of reciprocating motion, a- Cells in the working area of the bath are filled with granular cleaning material. 2. The device according to claim 1, characterized by the fact that the working surface of the anode is 1.5-2 times smaller than the surface of the cathode. $ V X

Description

The invention relates to equipment for cleaning the surface of a wire from process oxides when moving it into a thread and can be used in metalware plants. The famous bath of bipolar etching wire / comprising electrodes made in the form of cylindrical rods mounted in insulated punched tubes lJ. With such a construction, the baths have large electric current losses due to the closure of electrolyte, and a-removal of the center is possible only at high current planes. Closest to the invention, an electrolytic wire cleaning unit comprising a solution bath separated by partitions into cells with electrodes of opposite polarity C23 is located. However, an increase in the cleaning intensity is achieved by increasing the current density of the anodic and cathodic treatment simultaneously by increasing the total current in the circuit, which leads to overheating, increased evaporation of the electrolyte and excessive consumption of electricity. - In order to reduce electrolyte overheating, its circulation is intensive, which is G5) and results in saturation of the electrolyte with cleaning products that are in a suspended state and deterioration of cleaning quality. J In addition, the drawback of the device is the inability to vary the intensity of the anodic and cathodic surface treatment of the product (the fibers) separately, since an increase or decrease in the current density on the surface of the product of one polarity will cause an equal increase or decrease in 1 of the current of the opposite polarity. The aim of the invention is to intensify the cleaning process and reduce costs. This goal is achieved in that the device for etching and cleaning the wire, containing a solution bath divided by partitions into cells with electrodes of opposite polarity, is equipped with a device for alternating twisting of the wire, installed behind the bath, in the form of two plates, The upper gummed plate is installed with the possibility of reciprocating motion, and the cells in the working zone of the bathtub are filled with granular cleaning material. The working surface of the anode is 1.52 times smaller than the surface of the cathode. FIG. 1 shows the device, a general view; in fig. 2 - the same, longitudinal section. The device contains a working bath. 1 with cleaning solution 2. Bipolar cells 3 with lead electrodes 4 are installed in the working bath. They are filled with cleaning granulated material 5. At the exit, a device for alternating circle- alternating from the bath of etching of the wire. around its axis, consisting of the bottom plate 6 of the top plate 7 and the cam 8. The device operates as follows. The patented 0.82, 9 mm wire passes through a pre-cleaning and cooling bath, then enters the pickling and cleaning bath. In the pickling bath, the wire is subjected to bipolar etching in a solution of 2 sulfuric acid composition, g / l: H | 80: 120-200; NaCl to 100; the inhibitor is PKU 0.1-0.3. The bipolar cells are filled with granular cleaning cloth 5. To ensure that the entire surface of the wire makes contact with the wiping material and the sludge is completely removed from the surface, the wire is subjected to alternating torsion. The wire passes through the entire device in a straight line. Experienced testing of the device showed the possibility of etching and cleaning the surface of the wire with a diameter of 0.8-2.9 mm made of steel 50.70. For the experiments, a wire was taken after patenting with a diameter of 2.9 mm from steel 50 with the amount of oxides on the wire surface 28.83 g / m sludge (and 4.18 kg / t. The matrix of the experiment plan and the results of the experiments are presented in the table. It can be seen from the table The best results on the preparation of the surface of the wire before coating were obtained at an anodic current density (Dk) of 28 A / dM and a cathode of 14-21 A / dm, the distance between the electrodes over an axis of 500 mm and an etching time of 40 s. only the first two electrodes, and the rest were disconnected. However, when bo its dense oxides or more of them expedient connection sled51toschih pairs &. LE1 trodes economic effect only on energy saving compared to the baseline sample is approximately 75 rub per ton wire 0.8 mm..

28

one.

28

50

thirty

2.15 (Basic)

2.16 2.52 2.52 0.39 2.37 1.37 0.10 2.13

Claims (2)

1. DEVICE FOR ETCHING AND CLEANING THE WIRE, containing a bath for the solution, divided by partitions into cells with electrodes of opposite polarity, and with the fact that, in order to intensify the cleaning process and reduce costs, it is equipped with a device for alternating torsion the wire installed behind the bath in the direction of movement, made in the form of two plates, with the upper gummed plate installed with the possibility of reciprocating movement, and the a-cells in the working area of the bathtub are filled with granular wiping material 2. The device according to π. 1, characterized in that the working surface of the anode is 1.5-2 times smaller than the surface of the cathode. at Figure 1>