Diamond tool with diamond surface subjected to metal treatment

Abstract

The utility model discloses a diamond tool with a diamond surface subjected to metal treatment, and particularly relates to the technical field of diamond tools, the diamond tool comprises a diamond base layer, metal composite layers are arranged on the two faces of the diamond base layer, and each metal composite layer is composed of a nickel film layer, a cobalt film layer and a tungsten film layer; wherein the nickel film layer is provided with a first connecting protruding part, the first connecting protruding part extends into the tungsten film layer, and the tungsten film layer is provided with a second connecting protruding part; through the nickel film layer, the bonding strength of the diamond and a base material can be improved, and meanwhile, the nickel film layer has good anti-corrosion performance; the cobalt film layer has good wear resistance and corrosion resistance, so that the service life of the diamond tool can be prolonged; the tungsten film layer can improve the wear resistance and heat resistance of the tool, and in addition, the first connecting protruding part, the second connecting protruding part and the like are arranged, so that the combination between the metal composite layer and the combination between the metal composite layer and the diamond base layer are more stable and reliable.

Description

Technical Field

[0001] This utility model relates to the field of diamond tool technology, and specifically to a diamond tool with a metallized diamond surface. Background Technology

[0002] Diamond is the hardest substance in nature. These tools have advantages such as high hardness, good wear resistance, and long service life. Due to their excellent hardness, wear resistance, and high efficiency, diamond tools are widely used in many industrial fields. These tools are mainly used for high-precision machining tasks such as cutting, grinding, drilling, and polishing. Current diamond tools mainly include diamond saw blades, diamond grinding wheels, and diamond drill bits.

[0003] In the production of diamond tools, diamond particles or powder are distributed in matrix powder. The bonding strength between the diamond and the matrix powder is the key to determining the sharpness and lifespan of the diamond tool. Diamond tools made solely from diamond have disadvantages such as low strength, poor high-temperature resistance, and poor wear resistance, which affect the service life of the diamond tool. Based on this, a diamond tool with a metallized diamond surface is proposed here. Utility Model Content

[0004] The purpose of this invention is to provide a diamond tool with a metallized diamond surface to address the aforementioned shortcomings in the technology.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a diamond tool with a metal-treated diamond surface, comprising a diamond base layer, wherein both sides of the diamond base layer are provided with a metal composite layer, the metal composite layer being composed of a nickel film layer, a cobalt film layer and a tungsten film layer;

[0006] The nickel film layer has a first connecting protrusion that extends into the tungsten film layer, and the tungsten film layer has a second connecting protrusion that extends into the diamond base layer.

[0007] Both the first connecting protrusion and the second connecting protrusion have hooks integrally formed on both sides.

[0008] Preferably, the lower end face of the hook portion is provided with a protruding rod portion.

[0009] Preferably, the thickness of the nickel film layer, cobalt film layer and tungsten film layer is 4-7 μm.

[0010] Preferably, the side of the metal composite layer facing away from the diamond base layer is provided with a molybdenum disulfide coating.

[0011] Preferably, the thickness of the molybdenum disulfide coating is 2-5 μm.

[0012] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0013] 1. Nickel coating can improve the bonding strength between diamond and the substrate material, and also has good corrosion resistance; cobalt coating has good wear resistance and corrosion resistance, which can improve the service life of diamond tools; tungsten coating can improve the wear resistance and heat resistance of tools.

[0014] 2. The first connecting protrusion, the second connecting protrusion, the hook, and the protruding rod are provided to make the bonding between the layers of the metal composite layer and between the metal composite layer and the diamond base layer more stable and reliable. Attached Figure Description

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the second connecting protrusion of this utility model;

[0018] Explanation of reference numerals in the attached figures:

[0019] 1. Diamond base layer; 2. Metal composite layer; 21. Nickel film layer; 22. Cobalt film layer; 23. Tungsten film layer; 3. Molybdenum disulfide coating; 4. First connecting protrusion; 5. Second connecting protrusion; 51. Hook; 52. Protruding rod. Detailed Implementation

[0020] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0021] This utility model provides, for example Figures 1-2The diamond tool shown includes a diamond base layer 1 with metallized diamond surfaces. Both sides of the diamond base layer 1 are provided with metal composite layers 2, which consist of a nickel film layer 21, a cobalt film layer 22, and a tungsten film layer 23. The thickness of each of the nickel film layer 21, cobalt film layer 22, and tungsten film layer 23 is 4-7 μm. The nickel film layer 21 is deposited on the diamond surface through a chemical reaction, without the need for an external current. The nickel film layer 21 can improve the bonding strength between the diamond and the substrate material, and also has good corrosion resistance. The cobalt film layer 22 is chemically plated with cobalt, which has good wear resistance and corrosion resistance, thus improving the service life of the diamond tool. The cobalt film layer 22 can also serve as an intermediate layer to enhance the bonding between the diamond and the substrate material. Tungsten has high hardness and high temperature resistance, making it suitable for high-temperature working environments. The tungsten film layer 23 can improve the tool's wear resistance and heat resistance.

[0022] The nickel film layer 21 has a first connecting protrusion 4 that extends into the tungsten film layer 23. The tungsten film layer 23 has a second connecting protrusion 5 that extends into the diamond base layer 1. The first connecting protrusion 4 connects the nickel film layer 21, the cobalt film layer 22, and the tungsten film layer 23. The second connecting protrusion 5 connects the metal composite layer 2 and the diamond base layer 1, making the overall bonding more stable and reliable.

[0023] Both the first connecting protrusion 4 and the second connecting protrusion 5 have integrally formed hook portions 51 facing both sides. The lower end face of the hook portion 51 is provided with a protruding rod portion 52. The hook portion 51 and the protruding rod portion 52 can be embedded into the layer through which the first connecting protrusion 4 and the second connecting protrusion 5 pass, which can further improve the stability of the interlayer bonding.

[0024] In addition, a solid lubricating layer is provided on the side of the metal composite layer 2 facing away from the diamond base layer 1. The solid lubricating layer is a molybdenum disulfide coating 3. Molybdenum disulfide is an excellent solid lubricant that can maintain good lubrication performance at high temperatures and is suitable for high-temperature working environments. The thickness of the molybdenum disulfide coating 3 is 2-5 μm. Alternatively, a composite coating prepared by nanotechnology can be used, which can provide excellent lubricity and wear resistance at the same time and is suitable for high-load and high-speed processing conditions. Alternatively, self-lubricating materials (such as PTFE) can be added during the tool manufacturing process to give the tool itself a certain lubrication performance and reduce the dependence on external lubricating materials.

[0025] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A diamond tool with a metallized diamond surface, comprising a diamond substrate (1), characterized in that: The diamond base layer (1) has a metal composite layer (2) on both sides, which is composed of a nickel film layer (21), a cobalt film layer (22) and a tungsten film layer (23); The nickel film layer (21) is provided with a first connecting protrusion (4), which extends into the tungsten film layer (23). The tungsten film layer (23) is provided with a second connecting protrusion (5), which extends into the diamond base layer (1).

2. The diamond tool with metallized diamond surface according to claim 1, characterized in that: Both the first connecting protrusion (4) and the second connecting protrusion (5) have hooks (51) integrally formed on both sides.

3. A diamond tool with a metallized diamond surface according to claim 2, characterized in that: The lower end face of the hook portion (51) is provided with a protruding rod portion (52).

4. A diamond tool with a metallized diamond surface according to claim 1, characterized in that: The thicknesses of the nickel film (21), cobalt film (22) and tungsten film (23) are all 4-7 μm.

5. A diamond tool with a metallized diamond surface according to claim 1, characterized in that: The metal composite layer (2) has a molybdenum disulfide coating (3) on the side facing away from the diamond base layer (1).

6. A diamond tool with a metallized diamond surface according to claim 5, characterized in that: The thickness of the molybdenum disulfide coating (3) is 2-5 μm.

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