CN205474080U - Electroplate electrode bar device - Google Patents

Abstract

The utility model relates to an electroplating electrode rod device for electroplating the inside of a cylinder base body, comprising a base body, an anode rod whose end is placed inside the base body, and a fixing piece connecting the above two, and the fixing piece is provided with through holes transparent up and down , wherein the anode rod includes a rod body, a base and a bottom cover, the rear end of the rod body is nested in the front end of the base, the bottom cover is fixed at the end of the base, and the rod body is transparent at both ends The base is hollow inside, and its lower end is radially provided with several transparent water outlet holes. The beneficial effects of the utility model are: simple structure, good effect of overcoming air bubbles during electroplating, stable concentration and temperature of electroplating solution, improved pass rate of products, and saved cost.

Description

An electroplating electrode rod device

technical field

The utility model relates to the field of electroplating, in particular to an electroplating electrode rod device.

Background technique

Electroplating refers to a surface processing method in which the cations of the pre-plated metal in the plating solution are deposited on the surface of the base metal by electrolysis with the base metal to be plated as the cathode in a salt solution containing pre-plated metal to form a coating. .

Chromium is a silvery-white metal with a slight bluish tint, which is easily passivated in the air, and a very thin passivation film is formed on the surface, thus showing the properties of a noble metal. The chrome plating layer has good heat resistance, wear resistance and good chemical stability, and it does not work in alkali, sulfide, nitric acid and most organic acids, so it is usually used in cylinders of garden tools such as lawn mowers coating on the inner surface.

Because chromium metal is brittle and easy to break, the anode used for chromium plating is not metal chromium, but titanium, lead-antimony or lead-tin alloys are used as insoluble anodes. When chromium plating is performed in chromic acid solution, one end of the anode rod is placed in the cylinder. Together with the cylinder as the cathode, the other end as the anode, the fixture fixes the anode rod in the cylinder and puts it into the liquid medicine to energize. Since chromium is a very active metal, the atomic structure of chromium also has some characteristics different from other metals, and a continuous coating can only be obtained at a very negative potential; the current efficiency of chromium plating is low, and a large amount of hydrogen is precipitated on the cathode. On the surface of the electroplating substrate, bubbles are generated, which makes the plating of the electroplating substrate uneven, rough, and not smooth, resulting in defective products. Usually shaking, stirring and other methods are used to promote the flow of the solution, so that the state of the solution is evenly distributed, and the air bubbles on the surface of the cathode are eliminated; but the cylinder of the garden tool is small, and when it is electroplated inside, one end of the anode rod is fixed in the cylinder by a fixture. The whole is soaked in the electroplating solution, and the electroplating solution is housed in the cylinder to form a seal. The solution in the cylinder is difficult to flow, and the probability of producing defective products is very high, resulting in waste.

Contents of the invention

In order to solve the above technical problems, the utility model provides an electroplating electrode rod device, which is suitable for electroplating chromium on the inner surface of the cylinder base of garden tools, so that the solution in the cylinder base can be continuously circulated during electroplating, and the generation of bubbles in the electroplating layer can be avoided. , to ensure the quality of the product.

The technical solution adopted by the utility model is: an electroplating electrode rod device, including a base body, a fixing part, and an anode rod, the end of the anode rod passes through the center of the fixing part and is located inside the base body, and the fixing part is connected to the anode rod through a connecting part. The base is connected, the fixing part is provided with a through hole that is transparent up and down, the anode rod includes a rod body, a base and a bottom cover, the end of the rod body is nested in the front end of the base, and the bottom cover is fixed on the At the end of the base, the rod body is a hollow rod with transparent ends. The inside of the base is hollow, and a number of transparent water outlet holes are radially provided at the lower end.

The electroplating electrode rod device is put into the electroplating solution pool, the inside of the substrate is filled with electroplating solution, and the electroplating solution is injected into the rod from the water inlet at the front end of the rod body through a circulating motor, and the electroplating solution flows into the substrate from the water outlet hole under the base Inside, and then flow into the electroplating pool through the through hole of the fixing piece, forming a circular motion, preventing the generation of bubbles in the coating inside the substrate, and making the coating uniform.

As a further improvement, the rod body is made of titanium metal material, and the base is made of lead-tin alloy material.

As a further improvement, the bottom cover is made of PP or PVC material.

The beneficial effects of the utility model are: simple structure, good effect of overcoming air bubbles during electroplating, stable concentration and temperature of electroplating solution, improved pass rate of products, and saved cost.

Description of drawings

In order to make the content of the utility model more clearly understood, the utility model will be further described in detail below based on specific embodiments and in conjunction with the accompanying drawings.

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a schematic cross-sectional view of the anode rod structure.

Among them: 1-anode rod, 11-rod body, 12-water inlet, 13-water outlet, 14-base, 15-bottom cover, 2-base body, 3-fixer.

detailed description

As shown in Figure 1 and Figure 2, a kind of electroplating electrode rod device described in the utility model includes an anode rod 1, a base body 2, and a fixing part 3, and the end of the anode rod 1 passes through the center of the fixing part 3 and is located at the Inside the base body 2, the fixing part 3 is connected with the base body 2 through a connecting part, and the fixing part is provided with a through hole transparent up and down, and the anode rod 1 includes a rod body 11, a base 14 and a bottom cover 15, The end of the rod body 11 is nested in the front end of the base 14, the bottom cover 15 is fixed on the end of the base 14, the rod body 11 is a hollow rod with transparent ends, and the inside of the base 14 It is hollow, and its lower end is radially provided with several transparent water outlet holes 13.

Wherein, the rod 11 is made of titanium metal, the base 14 is made of lead-tin alloy, and the bottom cover is made of PP or PVC.

The electroplating solution is placed in the base 2, the end of the anode rod 1 is put into the base 2, the fixing part 3 is set on the anode rod 1 and connected with the base 2, and the entire electroplating The electric shock rod device is soaked in the electroplating solution pool, and the electroplating solution is injected into the rod body 11 from the water inlet 12 at the front end of the rod body 11 through a circulating motor, and the electroplating solution flows out from the water outlet hole 13 under the base 14. The electroplating solution inside the base body 2 flows into the electroplating pool through the through hole of the fixing member 3, and the electroplating solution circulates. And the concentration is stable, while the electroplating is carried out, the coating surface inside the substrate is washed to prevent the generation of bubbles on the coating surface.

The above is only the preferred solution of the utility model, not as a further limitation of the utility model, and all equivalent changes made by using the specification and drawings of the utility model are within the protection scope of the utility model.

Claims (3)

1. an electroplated electrode bar device, including matrix, fixture, anode stub, described anode stub end is located at described intrinsic silicon through fixture center, described fixture is connected with described matrix by connection member, described fixture is provided with the most penetrating through hole, it is characterized in that, described anode stub includes barred body, base and bottom, described barred body end is nested in described pan frontward end, described bottom is fixed on described base end, described barred body is the hollow bar that two ends are penetrating, described chassis interior hollow, and its lower end is radially provided with some penetrating apopores.

A kind of electroplated electrode bar device the most according to claim 1, it is characterised in that described barred body is titanium metal material, and described base is terne metal material.

3. according to a kind of electroplated electrode bar device described in any one of claim 1 or 2, it is characterised in that described bottom is PP or PVC material.