JPS62188668A - Electromagnetic type surface treating device - Google Patents

Abstract

PURPOSE:To improve a surface treating capacity and the durability of an operating body by depositingly forming a hard abrasive grain layer of silicon carbide, diamond, quartz, alumina, etc. on the surface of said operating body in an electromagnetic type surface treating device for treating a metal plate, etc. CONSTITUTION:An operating body 7 consists of a body 71 of a bar-like piece made of a magnetic material or a nonmagnetic and conductive material, and a hard abrasive grain layer 72 which covers its outer surface. The abrasive grain layer 72 contains abrasive grains 73 of, e.g., silicon carbide, diamond, quartz, alumina, etc., and is deposited and formed on the surface of the body 71 via a metal binder 74 in such a way that cutting edges are exposed on the surface. Accordingly, when the surface treatment of a workpiece is carried out, cutting action by means of the cutting edges of the abrasive grains 73 which constitute the abrasive grain layer 72 is added to the beating action of the operating body 7, to improve the surface treating capacity. Also, the operating body 7 the surface of which is covered with the hard abrasive grain layer 72, has a high surface hardness improving its durability.

Description

[Detailed description of the invention] [Technical field to which the invention pertains]

This invention uses a metal plate, bar, pipe, etc. as an object to be treated, and uses electromagnetic force to slam an actuating body onto the surface of the object to remove mackerel and other objects attached to the surface. The present invention relates to an electromagnetic surface treatment device that performs various surface treatments such as surface cleaning to remove impurities, scale removal, deburring, satin finishing, etc., and particularly to the configuration of its operating body.

[Prior art and its problems]

This kind of electromagnetic surface treatment! The apparatus shown in FIGS. 4 to 6 has already been proposed by the same applicant as a la
(Japanese Patent Application No. 59-158413), the illustrated example here shows equipment in which the electromagnetic surface treatment F1 apparatus is incorporated in the first step of the plating process of a strip-shaped metal material to perform surface cleaning treatment of the metal material. In the figure, 1 is the object to be processed;
2 is a plating process equipment, and 3 is an electromagnetic surface treatment apparatus to which the present invention is applied. Such electromagnetic surface treatment device 3
consists of a non-magnetic processing container 4 through which the metal material 1 described above moves, a moving magnetic field generating device 5.6 disposed above and below the processing container 4, and a device inside the processing container 4. It is configured to include a large number of actuating bodies 7 housed therein. Further, the processing container 4 is divided into a plurality of small rooms by a partition wall 41 which also serves as a working space or a support member for the object 1 to be processed. On the other hand, the moving magnetic field generating VT devices 5 and 6 are well known as so-called linear motors, and are constructed by winding a multiphase AC coil 8 in a coil slot on the magnetic pole side of an iron core 9. Each of the moving magnetic field generators 5 and 6 generates a moving magnetic field φ1. Live ball φ2. Further, as shown in FIG. 6, the actuating body 7 is a hard rod-shaped piece made of a magnetic material or a non-magnetic conductive material. Next, the surface treatment operation of the object to be treated by the above-mentioned apparatus will be explained. First, as shown in the figure, the metal material 1 to be processed is inserted into the processing container 4, and in this state, power is supplied to the moving magnetic field generator 5.6 to generate a moving magnetic field φ1. By generating φ2, a rotating magnetic field synchronized with the power supply frequency is formed by combining the moving magnetic fields φl and φ2 in the working space in the processing container 4 placed in the magnetic field where this moving magnetic field acts, and this rotating magnetic field Due to the electromagnetic force based on the interaction between the actuating body 7 and the actuating body 7, the actuating body 7 is subjected to a translational force in the direction of movement of the magnetic field, a floating blade, and a viewpoint torque, as well as collisions between the actuating bodies 7, etc. causes intense random motion within the processing container 4. At the same time, the actuating body 7 is violently struck against the surface of the metal material 1 to be treated at the top and bottom, and the object to be treated is derusted due to the impact force and frictional action at that time. Surface treatment such as removal of impurities is performed to clean the surface. By the way, in order to enhance the surface treatment effect of the above-mentioned apparatus, it is desired that the working body 7 has a high cutting force as well as a high kinetic force. However, as mentioned above, for example, the hardness of the working body 7 made of ordinary iron material is about 180 in terms of Vickers value, which is not much different from the hardness of the object to be treated, and the surface of the working body 7 is Since the surface has a flat surface, the surface treatment action proceeds only by a simple collision of the working body. As a result, a high surface treatment ability cannot be obtained, and the working body itself wears out during the treatment operation, so durability remains a problem.

[Purpose of the invention]

The present invention has been made in view of the above points, and provides an operating body that exhibits excellent characteristics in durability and surface treatment ability by improving the operating body used in the electromagnetic surface treatment device described above. The purpose is to

[Key points of the invention]

In order to achieve the above object, this invention forms a hard abrasive grain layer on the outer surface of the working body, which not only improves the surface treatment ability due to the cutting action of the abrasive grains, but also improves the surface treatment ability of the working body itself. This is intended to improve wear resistance.

[Embodiments of the invention]

1 to 3 show an actuating body according to an embodiment of the present invention. First, in FIG. 1, the actuating body 7 is a rod-shaped actuating body body 71 made of a magnetic material or a non-magnetic conductive material. , and a hard abrasive layer 72 formed to cover the outer surface of the operating body main body 71. Here, the abrasive layer 7
2 contains fine mineral abrasive grains 73, as shown in FIG. It is formed by wearing. This abrasive layer deposition method is as follows:
In addition to the plating method and the vapor deposition method, methods such as coating or spraying the abrasive grains 73 on the surface of the working body main body 71 and further increasing the temperature of the working body main body to bind the abrasive grains 73 are adopted. Further, as the abrasive grains 73, hard abrasive grains having a Mohs hardness of 5 or more, such as silicon carbide, diamond, quartz, alumina, etc., are used. The surface treatment of the object to be treated is carried out by accommodating the operating body 7 having such a configuration in the processing container 4 of the electromagnetic surface treatment apparatus shown in FIGS. 4 and 5 and performing the surface treatment operation of the object to be treated. The pounding of the body 7 is combined with the action of the abrasive grain J! The cutting action of the cutting teeth of the abrasive grains 73 constituting the actuator 172 is added, and as a result, the surface treatment ability of the actuator is dramatically increased compared to the conventional actuator shown in FIG. Moreover, since the surface of the working body 7 is covered with the hard abrasive grain layer 72, its surface hardness is high, and the wear resistance and therefore the durability of the working body 7 are greatly improved. FIG. 3 shows another embodiment, in which the abrasive layer 72 is formed only on the outer surface of the operating body 71 at both ends thereof. That is, the actuating body 7 undergoes random motion while rotating around its center of gravity due to rotational torque exerted by the interaction with the rotating magnetic field, and in this process, the tip of the actuating body 7 collides with the surface of the object to be treated. Therefore, as in this embodiment, the operating body main body 7
Even if the abrasive grain layer 72 is formed only on both end portions, omitting the middle portion of 1, the surface treatment performance and durability will not be inferior in any way compared to the working body shown in FIG.

【Effect of the invention】

As described above, according to the present invention, by forming a hard abrasive layer on the outer surface of the working body accommodated in the processing container of the Ts, 41 type surface treatment apparatus,
It is possible to significantly improve the surface treatment ability of the object to be treated and the durability of the working body itself.

[Brief explanation of drawings]

FIG. 1 is a partially sectional external perspective view of an actuating body according to one embodiment of the present invention, FIG. 2 is a partially enlarged sectional view of FIG. 1, and FIG. 3 is an external perspective view of an operating body according to another embodiment. 4 is a schematic diagram of the entire electromagnetic surface treatment device, FIG. 5 is a sectional view taken along the line V-V in FIG. 4, and FIG. 6 is a perspective view of the conventional operating body. In each figure, 1: Processing object, 3: Electromagnetic surface treatment device, 4: Processing container, 5, 6: Moving magnetic field generator, 7: Working body, 71: Working body main body, 72; Abrasive grain layer, 73 : Abrasive grain" ,,,++H
Figure 2/'' Figure 3 Figure 4 Figure 5 Figure 6

Claims (1)

[Scope of Claims] 1) An apparatus for treating the surface of a plate, bar, pipe, etc., by hitting the surface with an actuating body, which is made of a magnetic material or a non-magnetic conductive material. a non-magnetic processing container that accommodates the operating member and the workpiece to define a working area; and a moving magnetic field generating device that applies a moving magnetic field to the processing container. In an electromagnetic surface treatment device that performs surface treatment of a workpiece by causing random motion in an operating body using electromagnetic force based on the interaction of An electromagnetic surface treatment device characterized by the following: 2) The electromagnetic surface treatment apparatus according to claim 1, wherein the abrasive grain layer contains silicon carbide abrasive grains. 3) The electromagnetic surface treatment apparatus according to claim 1, wherein the abrasive grain layer contains diamond abrasive grains. 4) The electromagnetic surface treatment apparatus according to claim 1, wherein the abrasive grain layer contains quartz abrasive grains. 5) The electromagnetic surface treatment apparatus according to claim 1, wherein the abrasive grain layer contains alumina abrasive grains.