Centrifugal casting grinding ball

Abstract

The utility model belongs to the technical field of grinding balls, and particularly relates to a centrifugal casting grinding ball which comprises a centrifugal casting grinding ball main body, the centrifugal casting grinding ball main body comprises a ball body and a ball surface coating; the ball body is made of a high-strength and high-hardness metal material; a centrifugal casting method is adopted in the manufacturing process of the ball body, molten metal is sprayed into a casting mold rotating at a high speed, and a ball is formed. The sphere surface coating is arranged on the outer surface of the sphere body, a cavity is formed in the sphere body, the sphere surface coating is prepared by adopting a sol-gel method, the sphere body and the sphere surface coating are combined by adopting a vacuum heat treatment process, and the sphere surface coating is made of a nanoscale material. The utility model has the advantages of reasonable structural design, excellent performance, long service life, low production cost and the like, and has wide application prospect and market potential.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding balls, in particular to a centrifugal casting grinding ball. Background Art

[0002] Grinding balls are a kind of crushing medium used in ball mills. They are used to crush materials in the mill. They are consumables. Their main purpose is to grind materials to make them finer to meet the use standards. They are mainly used in mines, power plants, cement plants, steel plants, silica sand plants, coal chemical industry and other fields. Grinding balls are generally manufactured by centrifugal casting. Centrifugal casting is a casting method that pours liquid metal into a rotating mold, so that the liquid metal fills the mold and solidifies under the action of centrifugal force. In order to achieve the above process, a centrifugal casting machine must be used to create conditions for the mold to rotate. According to the different spatial positions of the mold's rotating axis, steel balls and casting balls made by vertical centrifugal casting machines are commonly used. Process: mold assembly-start-up-preheating mold-coating-alloy dosing-casting-boiling water cooling-casting out of the mold-cleaning the casting.

[0003] With the rapid development of my country's industry, the demand for grinding balls is growing. Traditional grinding balls have problems such as short service life, high production cost, unstable performance, etc., which cannot meet the high requirements of modern industry. In order to solve this problem, the utility model provides a centrifugal casting grinding ball with reasonable structural design, excellent performance, long service life and low production cost.

[0004] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to a person skilled in the art. Utility Model Content

[0005] The utility model aims to solve the shortcomings mentioned in the above background technology and proposes a centrifugal casting grinding ball.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions: a centrifugal casting grinding ball, comprising: a centrifugal casting grinding ball body;

[0007] The centrifugally cast grinding ball body comprises a ball body and a ball surface coating;

[0008] The spherical body is made of a high-strength and high-hardness metal material;

[0009] The manufacturing process of the sphere body adopts a centrifugal casting method, in which molten metal is sprayed into a high-speed rotating casting mold to form a sphere;

[0010] The sphere surface coating is arranged on the outer surface of the sphere body.

[0011] Preferably, a cavity is provided inside the spherical body.

[0012] Preferably, the spherical surface coating is prepared by a sol-gel method.

[0013] Preferably, the sphere body and the sphere surface coating are combined using a vacuum heat treatment process.

[0014] Preferably, the sphere surface coating material is a nanoscale material.

[0015] Preferably, the spherical body is made of alloy steel.

[0016] The beneficial effects of the utility model are:

[0017] 1. The centrifugally cast grinding ball proposed in the utility model adopts a high-strength and high-hardness metal material to make the ball body and provides a coating on the surface of the ball, thereby improving the durability and service life of the grinding ball.

[0018] 2. The ball body is manufactured by centrifugal casting, so that the grinding ball has better structural and performance stability.

[0019] 3. The sol-gel method is used to prepare the surface coating of the sphere. By controlling the coating thickness, the proportion of coating materials and the preparation process, the coating has excellent performance.

[0020] 4. The cavity inside the ball body is set to control the weight of the grinding ball and reduce production costs without affecting its basic functions.

[0021] 5. The vacuum heat treatment process is used to ensure that the coating is firmly bonded to the ball body, thereby improving the durability of the grinding ball.

[0022] 6. The surface coating material of the ball is nano-grade material, which has excellent wear resistance, corrosion resistance and oxidation resistance, greatly improving the service life of the grinding ball.

[0023] 7. The ball body is made of alloy steel, which has better hardness, strength and wear resistance than traditional cast grinding balls, thereby improving the stability and durability of the grinding balls during use.

[0024] The centrifugally cast grinding balls of the utility model have the advantages described above, which can not only solve the problems existing in the prior art, but also improve production efficiency, reduce production costs, and have broad application prospects. By optimizing the design and manufacturing process of the centrifugally cast grinding balls, the grinding balls have higher stability and durability in industrial production.

[0025] In summary, the centrifugal casting grinding ball proposed by the utility model has the advantages of reasonable structure, excellent performance, long service life, low production cost, etc., and has broad application prospects and market potential. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 This is a three-dimensional structural schematic diagram of a centrifugal casting grinding ball proposed by the utility model;

[0028] Figure 2 This is a schematic cross-sectional view of a centrifugally cast grinding ball proposed by the utility model;

[0029] Figure 3 The utility model is a schematic diagram of the production process of a centrifugal casting grinding ball.

[0030] In the figure: 1, centrifugally cast grinding ball body; 11, ball body; 12, cavity; 13, coating. DETAILED DESCRIPTION

[0031] The technical solution of the utility model will be described clearly and completely below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Reference Figure 1-3 A centrifugal casting grinding ball comprises a centrifugal casting grinding ball body 1, wherein the centrifugal casting grinding ball body 1 comprises a spherical body 11 and a spherical surface coating 13, wherein the spherical body 11 is made of a high-strength and high-hardness metal material, such as alloy steel, and the spherical body 11 made of alloy steel has better hardness, strength and wear resistance than traditional casting grinding balls, thereby improving the stability and durability of the centrifugal casting grinding ball during use. The material of the spherical body 11 can also be high-speed steel or stainless steel;

[0033] In this embodiment, a cavity 12 is provided inside the spherical body 11, and the cavity 12 is located in the center of the spherical body 11, so as to control the weight of the spherical body 11 and reduce the production cost without affecting its basic functions. The manufacturing process of the spherical body 11 adopts a centrifugal casting method, and the molten metal is sprayed into the mold through a high-speed rotating casting mold to form the spherical body 11. This manufacturing method can ensure that the internal structure of the spherical body 11 is tight, and there are no defects such as pores and sand holes, thereby improving the service life of the spherical body 11, and at the same time, the centrifugal casting grinding ball has good structural and performance stability;

[0034] In this embodiment, the sphere surface coating 13 is arranged on the outer surface of the sphere body 11, and the sphere surface coating 13 is prepared by a sol-gel method and processed by a vacuum heat treatment process. By controlling the coating thickness, the proportion of the coating material and the preparation process, the excellent performance of the coating is achieved, and at the same time, it can ensure that the coating 13 is firmly combined with the sphere body 11, thereby improving the durability of the centrifugally cast grinding ball. The material of the sphere surface coating 13 is a nano-grade material, such as nano-titanium carbide, nano-aluminum oxide and nano-zirconium oxide, which has excellent wear resistance, corrosion resistance and oxidation resistance, and greatly improves the service life of the centrifugally cast grinding ball.

[0035] In addition, the utility model also provides a production process for centrifugal casting grinding balls.

[0036] The process includes the following steps: metal smelting, centrifugal casting, ball heat treatment, coating preparation, coating curing, and finished product inspection. Through this production process, centrifugal casting grinding balls with excellent performance can be mass-produced.

[0037] Working principle: When in use, first install the spherical body 11 in the mill, and then start the mill. During operation, the spherical body 11 rolls in the mill. Due to the excellent performance of the spherical surface coating 13, the spherical body 11 can effectively reduce wear and improve grinding efficiency during the grinding process. At the same time, the cavity 12 inside the spherical body 11 ensures that the weight of the spherical body is moderate, which does not affect the grinding effect and reduces production costs.

[0038] The above is a detailed introduction to a centrifugal casting grinding ball provided by the utility model. This article uses specific embodiments to explain the principle and implementation method of the utility model. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A centrifugal casting grinding ball, characterized in that: It comprises a centrifugally cast grinding ball body (1); The centrifugally cast grinding ball main body (1) comprises a ball body (11) and a ball surface coating (13); The spherical body (11) is made of a high-strength and high-hardness metal material; The manufacturing process of the spherical body (11) adopts a centrifugal casting method, in which molten metal is sprayed into a high-speed rotating casting mold to form a sphere; The spherical surface coating (13) is arranged on the outer surface of the spherical body (11).

2. The centrifugal casting grinding ball according to claim 1, characterized in that: A cavity (12) is provided inside the spherical body (11).

3. The centrifugal casting grinding ball according to claim 1, characterized in that: The spherical surface coating (13) is prepared by a sol-gel method.

4. The centrifugally cast grinding ball according to claim 1, characterized in that: The connection between the spherical body (11) and the spherical surface coating (13) is achieved by using a vacuum heat treatment process.

5. The centrifugally cast grinding ball according to claim 1, characterized in that: The material of the spherical surface coating (13) is a nano-level material.

6. The centrifugally cast grinding ball according to claim 1, characterized in that: The spherical body (11) is made of alloy steel.

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