JPH07178516A - Amorphous ribbon manufacturing equipment - Google Patents

Abstract

(57) [Abstract] [Objective] In an amorphous ribbon manufacturing apparatus, it is possible to maintain the roughness of the cooling roll surface and remove contaminants without excessively generating scratch marks on the cooling roll surface. (EN) Provided is an amorphous ribbon manufacturing apparatus which can be manufactured. [Structure] A cylindrical brush roll, which is provided on the outer periphery of a cooling roll of a device for manufacturing an amorphous ribbon and is composed of a core material in which abrasive grains are woven into a fiber wire material made of a resin such as nylon, and it is used as a cooling roll. An amorphous ribbon manufacturing apparatus provided with a motor for continuously rotating the surface of a cooling roll by rotating the brush roll against the rotation of the cooling roll while pressing it, and a swinging device for swinging the brush roll in the axial direction. .

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for producing an amorphous ribbon.

[0002]

2. Description of the Related Art As a method for producing an amorphous ribbon,
A general method is to jet molten metal onto the outer circumference of a cooling roll that is rotating at a high speed, and rapidly quench and solidify it by the heat removal action of the cooling roll. In this method, it is essential to cool the molten metal at an extremely high cooling rate of about 100,000 ° C./s, and in order to effectively remove heat from the molten metal, the cooling roll is made to have a thermal conductivity such as copper. It is common to use a metal material having a high

However, since the metal in a molten state is in direct contact with the surface of the cooling roll, deterioration of the roughness of the roll surface and deterioration of the material due to heat history of the roll surface or adhesion of contaminants are difficult to avoid. Maintaining a sound cooling roll surface is essential for maintaining the quality of the amorphous ribbon, especially when the amorphous ribbon is manufactured for a long time.

In order to solve such a problem, for example, Japanese Patent Publication No. 61-27145 discloses a means for polishing the surface of a cooling roll by means of a brush roll made of metal bristles. Further, in the detailed description of the invention disclosed in Japanese Patent Publication No. 61-27145, there is EE Mariner (R
・ E.Maringer) et al., "Experimental casting of fast-quenching filaments and fibers," described in the paper entitled "Experimental Casting Method for Glass, Cotton, Belt Materials, and Other Surfaces without leaving any deposits. A means for polishing the surface of a chill roll by a rotating flapper wheel made of a material to be held is described.

[0005]

However, the above-mentioned conventional method and apparatus have the following problems in stably producing amorphous ribbon. That is, in the method and apparatus disclosed in JP-B-61-27145, in order to prevent deterioration of roughness of the cooling roll surface and adhesion of contaminants by polishing with a brush roll composed of metal bristles, It is difficult to avoid the generation of scratch marks on the roll surface by the brush, and the ambient gas around the roll penetrates the paddle (melt pool) formed by the molten metal on the cooling roll along with the scratch marks, and the scratch marks on the amorphous ribbon surface. Generates a lot of air pools,
There was a problem that the cooling rate necessary for making the portion amorphous could not be achieved, and as a result, the quality of the amorphous ribbon was remarkably deteriorated.

Further, it is impossible to polish and remove the deposits on the roll surface with a mere nylon resin brush. It is an object of the present invention to provide an amorphous ribbon manufacturing apparatus that solves the above problems.

[0007]

According to the present invention, in a device for producing an amorphous ribbon by injecting molten metal onto the outer periphery of a cooling roll under high speed rotation to rapidly solidify it, melting is performed from a position where the produced ribbon is peeled off. Grinding to a fiber wire made of resin such as nylon that can be pressed parallel to the axis of the cooling roll on a part of the outer periphery of the cooling roll up to the position of injecting metal, and is rotatable in reverse with respect to the rotation of the cooling roll. An apparatus for producing an amorphous ribbon, which is provided with a cylindrical brush roll composed of a core material in which grains are woven.

Further, the above-mentioned apparatus for producing an amorphous ribbon is characterized in that an oscillating device for oscillating the rotating shaft of the brush roll in the direction of the axis of the cooling roll while rotating the brush roll is provided. The amorphous ribbon manufacturing apparatus is characterized in that a cover covering the periphery of the brush roll and a suction device for sucking an atmosphere in the cover are installed.

[0009]

[Operation] According to the present invention, a fiber wire made of a nylon resin is formed on a part of the outer periphery of the cooling roll between the position where the thin ribbon produced on the outer periphery of the cooling roll is peeled and the position where the molten metal is injected. For example, a cylindrical brush roll composed of a core material woven with abrasive grains is pressed against the cooling roll with the axes of the cooling roll and the brush roll being parallel to each other, and the brush roll is cooled in the process of ribbon production. Since the cooling roll surface is continuously polished by rotating the roll in the reverse direction, it is possible to obtain the polishing characteristics sufficient to prevent the deterioration of the roughness of the roll surface, and the polishing occurs on the roll surface by polishing. It is possible to reduce the occurrence of scratch marks that occur.

Further, while rotating the brush roll, the rotation axis of the brush roll is swung in the direction of the axis of the cooling roll, so that minute scratch marks are generated in a sine curve shape, and the scratch marks are superposed on each other. It is possible to further reduce the depth. Note that this principle is similar to the honing finish generally used for polishing cylindrical products.

Further, since the cover surrounding the periphery of the brush roll and the suction device for holding the inside of the cover at a negative pressure are installed, it becomes possible to carry out the polishing dust generated by polishing to the outside of the system by the suction device. Also, it becomes possible to avoid the problem that polishing debris generated by polishing with the brush roll enters the paddle portion.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. 1 is a side view showing an embodiment of the present invention, FIG. 2 is a plan view of another embodiment in which a brush roll is provided with a rod and a cylinder, and FIG. 3 is a plan view of the brush roll, the rod and the above. It is a side view which provided the cover which covered the circumference of a cylinder, and the suction device.

As shown in the figure, 1a is a molten metal, 1b is an amorphous ribbon, 2 is a cooling roll for producing the ribbon, 3
Is a brush roll for polishing the surface of the cooling roll 2, 4 is a shaft of the brush roll 3, 5 is a rotary motor for rotating the shaft 4 of the brush roll 3, 6 is a bearing arranged on the support plate 6a, and 7 is a support plate 6a is a cylinder rod, 8 is a cylinder, 9 is a cover that covers the periphery of the brush roll 3, 10 is a suction device for sucking the internal atmosphere of the cover 9, 11 is its suction pipe, and 12a is molten metal 1a. The injection position, 12b, is a position where the amorphous ribbon 1b is peeled off.

In the figure, a cylindrical brush roll 3 composed of a core material obtained by weaving abrasive grains into a fiber wire made of nylon resin is melted from a position 12b where an amorphous ribbon 1b produced by a cooling roll 2 is peeled off. Metal 1a
Is pressed against the cooling roll 2 at a point on the outer circumference of the cooling roll 2 up to the position 12a where the brush roll 3 is sprayed, the brush roll 3 is pressed in a state where the axes of the cooling roll 2 and the brush roll 3 are parallel to each other. The surface of the cooling roll 2 was continuously rotated by rotating.

The brush roll 3 is rotated by a rotary motor 5 attached to the shaft end of the shaft 4, and the cylinder 8 is rotated.
The brush roll 3 can be swung in the axial direction of the cooling roll by the swinging device that can swing the support plate 6a in the arrow direction in FIG. Also, the brush roll 3
And the cylinder 8 is covered by a cover 9,
The inside of the cover 9 is held at a negative pressure by the suction device 10 and its suction pipe 11.

The abrasive grains are, for example, Al ₂ O.
Abrasive grains such as ₃ , SiO ₂ , carborundum and alundum are used, and as the resin of the core material in which the abrasive grains are woven, resins such as nylon and tampico fiber are used. Using the device of the present invention, an amorphous ribbon with a plate width of 100 mm and a plate thickness of 20 μm was produced at a speed of 25 m / s. It is possible to reduce the occurrence of the noise to 30% or less compared to the conventional method, and it is possible to realize stable manufacturing.

[0017]

As described above, according to the apparatus for producing an amorphous ribbon of the present invention, the roughness of the surface of the cooling roll is maintained and the contamination is maintained without excessively generating scratch marks on the surface of the cooling roll. It becomes possible to remove the object. Further, since the brush roll is swung in the axial direction of the cooling roll, and the periphery of the brush roll is surrounded by the cover so that the inside of the brush roll can be sucked, it is possible to further reduce the scratch marks and prevent the adverse effects of the polishing powder. Become.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of the present invention.

FIG. 2 is a plan view showing an embodiment of a swing device for a brush roll.

FIG. 3 is a side view showing an embodiment in which a cover that covers the periphery of a brush roll and a cylinder and a suction device are provided.

[Explanation of symbols]

 1a Molten metal 1b Amorphous ribbon 2 Cooling roll 3 Brush roll 4 Brush roll shaft 5 Rotary motor 6 Bearing 7 Cylinder rod 8 Cylinder 9 Cover 10 Suction device 11 Suction tube 12a Molten metal 1a injection position 12b Amorphous ribbon 1b Release position

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kazuyuki Kato 1 Kawasaki-cho, Chuo-ku, Chiba, Chiba Kawasaki Steel Co., Ltd. Chiba Steel Works (72) Inventor Saburo Moriwaki, 1 Kawasaki-cho, Chuo-ku, Chiba-shi, Chiba Kawasaki Steel Co., Ltd. Chiba Steel Works (72) Inventor Toru Sato 1 Kawasaki-cho, Chuo-ku, Chiba-shi, Chiba Kawasaki Steel Co., Ltd. Chiba Steel Works

Claims (3)

[Claims] 1. In an apparatus for producing an amorphous ribbon by injecting molten metal onto the outer periphery of a cooling roll under high speed rotation to rapidly solidify it, from the position where the produced ribbon is peeled to the position where the molten metal is ejected. A part of the outer periphery of the cooling roll that can be pressed in parallel with the axis of the cooling roll, and is composed of a core material in which abrasive grains are woven into a fiber wire made of a resin such as nylon that can rotate in reverse with respect to the rotation of the cooling roll. An apparatus for producing an amorphous ribbon, which is provided with a cylindrical brush roll that is formed. 2. The apparatus for producing an amorphous ribbon according to claim 1, further comprising a swinging device which swings the rotating shaft of the brush roll in the direction of the cooling roll shaft while rotating the brush roll. . 3. The apparatus for producing an amorphous ribbon according to claim 1, further comprising a cover covering the periphery of the brush roll and a suction device for sucking an atmosphere in the cover.