KR20010073752A - Electroplating boosbar manufacturing process - Google Patents

Abstract

PURPOSE: Provided is a process for producing a bus-bar for electric ion plating, which improves contact force between copper and titanium, therefore, lifetime is extended and the thickness of plating is equalized by controlling the amount of added anode. CONSTITUTION: The process comprises the steps of: a first step(S1) for draw-molding a titanium pipe(1); a second step(S2) for heating and extruding the copper(2) and inserting the copper(2) in the titanium pipe(1); a third step(S3) for rolling the copper(2) inserted titanium pipe(1) by using compressing rollers; a forth step(S4) for bending the titanium pipe(1).

Description

Manufacturing method of busbar for electric charges {ELECTROPLATING BOOSBAR MANUFACTURING PROCESS}

The present invention relates to a method for manufacturing a busbar for an electrothermal charge, and more particularly, in manufacturing a busbar installed as a plating bath of an electrothermal charge device, to improve adhesion between copper and titanium through copper hot rolling, drawing and rolling processes. The present invention relates to a bus bar for electric temperature heating, which can be plated with a uniform thickness by uniformly adjusting the input anode amount along with the life of the product, thereby reducing the defect rate and improving the productivity.

In general, an electric ion device is used in an ion implantation method in which an impurity atom is introduced into a semiconductor crystal to ionize an impurity atom and implant it into a semiconductor crystal surface at high speed by a high speed accelerator due to a high voltage. As a device, such an electric ion device is actually used for plating of printed circuit boards and plating of semiconductor parts together with plating operations such as nickel and zinc.

At this time, the electrical ion device 100 used in the plating operation of the printed circuit board as described above, the copper (Cu) is contained in the basket 110, which is installed in a plurality of sets of bus bar '+,-' electrode is connected ( 120 is dipped into the plating bath 140 filled with the acidic aqueous solution 130 in a state of being locked to the state, and the object to be plated is dipped in the plating bath 140, and then the power is supplied to the busbar 120 to provide the object (substrate). To the ionized metal in solution.

Here, the bus bar 120 has a structure so as to be contained in the plating bath " "As having a form, copper of high conductivity was used as its constituent material, such a bus bar 120 is easily oxidized because most parts are immersed in the acidic aqueous solution 130 with the basket 110 or the plating object. Therefore, the service life was short.

Therefore, in recent years, in order to solve the above problems, the bus bar was developed and used to improve corrosion resistance by wrapping the outer circumference of copper with titanium.

Thus, as a conventional busbar manufacturing method for wrapping the ferromagnetic titanium in the outer circumference of the copper as shown in Figure 2, the upper and lower surfaces of the copper plate 300 taking the plate body explosion-bonded to the upper and lower surfaces, the copper plate Titanium plate 200 is padded on both sides of the 300 to weld or pull-extrusion molding to be wrapped by the titanium tube was used,

Explosion adhesion method, which is the former, has excellent surface adhesion, but has a problem that the explosion adhesion process is very cumbersome and the welding part is easily corroded when the busbar is immersed in an aqueous solution.

The latter draw-out extrusion method had a problem that the defect rate was increased with considerable difficulty in controlling the plating thickness as the electrical conductivity was reduced because the joint portion between the copper tube and titanium was irregularly formed.

Therefore, the present invention was devised to solve the general problems of the above-described conventional busbar manufacturing method,

It is an object of the present invention to improve the adhesion between copper and titanium as the rolling process is carried out simultaneously after the copper hot rolling and drawing process, thereby to extend the life of the product as well as to adjust the amount of anode input in a uniform thickness. To this end, the present invention relates to a bus bar for electric interest price that can be expected to reduce the defective rate and improve the productivity.

As a specific means of the present invention for achieving the above object;

Drawing a round titanium tube; Hot-rolling copper and extruding it into the inner diameter of titanium; Rolling the titanium tube extruded with copper into an inner diameter into a press; It is achieved by providing a method for producing a busbar comprising a process of bending the tube formed by rolling.

1 is a block diagram of an electric charge device

Figure 2 is a production diagram of a conventional busbar formed by the explosion bonding method

Figure 3 is a process chart showing a manufacturing method of the electric charge electrode bus bar according to the present invention

<Explanation of symbols for major parts of drawing>

S1-S4: 1-4 Process 1: Titanium Tube 2: Copper

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

<Example>

3 is a manufacturing process diagram of the busbar according to the present invention, as shown in the first step (S1) of forming the titanium tube (1) through the drawing method, and after the hot rolled copper (2) titanium tube (1) It consists of two processes (S2) of extruding to the inner diameter of, three processes (S3) of rolling the titanium tube (1), and four processes (S4) of bending molding.

Here, the first step (S1) is a process of molding the titanium tube 1 through the drawing die, as shown in FIG.

Titanium is usually a silver white metal element belonging to group 4 of the periodic table. Element symbol Ti, atomic number 22, atomic weight 47.90. Melting point 1, .675 ° C. It is known to have a specific gravity of 4.5. It is widely used in parts of aircraft and ships because of its high strength, low density, and excellent corrosion resistance.

In addition, the second process (S2) is a process of extruding the hot rolled copper (2) to the inner diameter of the titanium tube (1) formed through the first process (S1),

Copper (2) described above is an element symbol Cu. Atomic number 29. Known as 63.546. Atomic weight, it is a good conductor of heat and electricity, rich in malleability and does not react to cold hydrochloric acid or sulfuric acid, but it dissolves in nitric acid and hot concentrated sulfuric acid.

In the second process (S2), the copper is hot rolled to extrude at a high pressure through the die orifice, and the copper 2 to be extruded is inserted into the above-described inner diameter of the titanium tube 1.

At this time, the copper is inserted into the interior as described above is to be protruded to the inlet and outlet of the titanium tube (1) to facilitate the power supply through the protruding portion, it is preferable to extrude the copper in this way (S2) In the present invention, it is preferable to heat the titanium tube (1) to 750-850 ℃ to prevent cracking of the titanium tube (1).

In addition, the three process (S3) is a rolling process for molding the circular titanium tube (1) in which the copper (2) is inserted into the inner diameter through the two processes (S2) described above into a polygonal body by a compression roller,

As described above, the rolling process is performed by compressing the titanium tube 1 in the form of a circular tube, and the copper 2 inserted into the titanium tube 1 through the above-described two steps (S2) and irregularities of the interface between the titanium tube 1 are irregular. The joint surface is integrated,

In this way, since the external power supplied through copper is uniformly transmitted to titanium as the interface is integrated, the amount of power input can be uniformly adjusted, and the uniform anode area can be maintained, so that the plating thickness can be uniformly set. Therefore, high speed plating can be performed.

In the final process, the fourth process (S4) is made of the titanium tube (1) rolled into a figure through the third process (S3). "It is the process of forming a busbar as a finished product by bending molding in the same form.

Therefore, the busbar completed through the manufacturing process as described above, as a result, the busbar according to the present invention can obtain only the advantages of the conventional drawing extrusion method and explosion bonding method, the busbar having such a manufacturing method In addition to the electric heating device, it can be applied to waste water treatment equipment.

As described above, according to the present invention, the method for manufacturing an electric thermal bus bar according to the present invention improves the adhesion between copper and titanium at the same time by performing a rolling process at the same time as the copper hot rolling and drawing process, thereby extending the life of the product as well as the amount of anode added. It is possible to perform the plating operation with a uniform thickness by adjusting, to have a productivity improvement effect with the effect of reducing the defective rate, it is a very useful invention for both producers and users.

Claims (1)

Drawing a round titanium tube; Hot-rolling copper and extruding it into the inner diameter of titanium; Rolling the titanium tube extruded with copper into an inner diameter into a press; A method for manufacturing a bus bar, comprising a process of bending a tube formed by rolling.