JPS6041715B2 - How to wash stranded wire with water - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Background and Objectives of the Invention For example, stranded copper wire conductors are sometimes immersed in an oxidizing solution to form a copper oxide film on the surface of the strands to provide lane insulation.

In such cases, the oxidizing solution must be washed off afterwards. However, in the case of stranded wire conductors, the lane gaps are narrow, making it difficult for washing water to reach the inside, and it takes a lot of time to wash the center.

The object of the present invention is to provide a method that can quickly and cleanly wash the inside of a stranded wire with water. According to the structure of the invention, a method for washing stranded wires in which washing water is forced into the wires is known, but the method is characterized in that the wires are heated before the washing water is forced into the wires.

Example (Figure 1) 10 is a stranded wire.

12 has a first flushing connector and has pressure seals 14 at both ends;
Rinsing water 16 is filled inside and pressurized by a pressure pump 18.

20 is a tank for flushing water 16.

22 is a heating chamber in which, for example, a high frequency induction heating coil 24 is provided.

Reference numeral 26 denotes a second water washing tray, which is the same as the first water washing tray 12 described above.

Description of action The stranded wire 10 is continuously advanced in the direction of the arrow 28.

Initially, in the first washing step 12, washing water 16 is forced into the stranded wire 10, a first washing is performed, and a considerable amount of the residual liquid in the stranded wire 10 is removed.

The stranded wire 10 is then heated in a heating chamber 22 by a high frequency induction heating coil 24.

Then, it enters the second washing channel 26 again and comes into contact with the washing water 16. Then, the stranded wire 10 has: 1. The lane gap has increased due to thermal expansion in the heating chamber 22; 2. The heated high temperature stranded wire 10 is rapidly cooled to the temperature of the washing water 16, so the inside of the stranded wire has increased. For reasons such as the volume of air, residual liquid vapor, etc. in the space suddenly shrinking and the washing water 16 being easily sucked in from the surroundings, the washing water 16 is often forced into the interior.

As a result, water washing can be performed even better. In addition, if necessary, a second heating chamber and a third washing chamber may be further provided after the second washing chamber 26 (none of which are shown).
, or the number of stages of the combination may be further increased.

Furthermore, pressurizing the rinsing water means that the pressure of the rinsing water outside the wire is higher than that inside the stranded wire, so that the rinsing water can easily enter the inside.

Therefore, instead of pressurizing the washing water, as shown by the imaginary line in Figure 1, the air in the chambers on both sides of the washing cans 12 and 26 is sucked by a vacuum pump 30 or the like, and the inside of the stranded wire is The pressure may be negative.

Because of the effect of the invention, the washing water 16 is press-fitted after heating the wire 10.
As described above, the washing water 16 easily enters between the strands of the stranded wire, and the residual liquid is better washed with water.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of the present invention. 10: Stranded wire, 12: First washing, 16: Washing water, 2
4: High frequency induction heating coil, 26: Let's wash the second water.

Claims (1)

[Scope of Claims] 1. A method for washing stranded wire with water, comprising the steps of: heating the stranded wire; and pressurizing washing water into the heated stranded wire.