Metal wire ring and diamond cutting line

Abstract

The utility model discloses a metal wire ring which comprises a metal wire, the metal wire comprises an inner core base body and a metal outer layer, the metal outer layer is a weldable ductile metal layer, and the metal outer layer covers the outer surface of the inner core base body; the metal wires are woven into a ring shape in one or more modes of end-to-end connection, self-winding and mutual winding of more than two strands, and the tail ends of the metal wires are welded and fixed through the metal outer layer. The joint position of the metal wire ring is convenient to fix and not easy to loosen, and the whole flaws and weak spots are few. On the basis, the utility model further discloses a diamond cutting line which comprises the metal wire ring and diamond abrasive particles, and the diamond abrasive particles are plated and solidified on the outer surface of the metal wire ring. The diamond cutting wire is long in service life, and the risks of loosening and fracture failure are small in the using process.

Description

Technical Field

[0001] The utility model relates to the technical field of diamond cutting wires, in particular to a metal wire ring and a diamond cutting wire. Background Art

[0002] Annular diamond cutting wire is an efficient and precise cutting tool that utilizes the superhard properties of diamond and combines the advantages of an annular design. It is often used for cutting hard materials, such as for precision cutting of precious hard and brittle materials such as semiconductor wafers, gemstones, and crystals, and for truncation and squaring of single crystal silicon and polycrystalline silicon.

[0003] Compared with ordinary diamond cutting wire, annular diamond cutting wire has stable mechanical properties. It does not require reversing when used and can perform continuous unidirectional cycle cutting. It can not only greatly increase the cutting speed, but also effectively reduce the vibration of the tool during the cutting process, ensuring high cutting precision.

[0004] Traditional ring-shaped diamond cutting wires are typically made from strong stainless steel or heat-drawn tungsten wire, braided into a ring shape by machine or hand, and then coated with consolidated diamond abrasive grains. However, during production, the ends of the wires are difficult to secure, making them prone to loosening and imperfections, affecting the quality and lifespan of the wire. Furthermore, imperforate wires can easily injure the operator's fingers. Utility Model Content

[0005] The purpose of the utility model is to provide a metal wire ring and a diamond cutting wire, which are convenient to fix the joint.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0007] A metal wire ring comprises a metal wire, wherein the metal wire comprises an inner core matrix and a metal outer layer, wherein the metal outer layer is a weldable ductile metal layer and covers the outer surface of the inner core matrix; the metal wire is woven into a ring shape by one or more methods selected from the group consisting of end-to-end connection, self-winding, and two or more strands being wound around each other, and the ends of the metal wire are fixed by welding through the metal outer layer.

[0008] Furthermore, the end of any of the metal wires is fixed to itself or to other metal wires by brazing with a low-melting-point metal solder.

[0009] Furthermore, the low melting point metal solder is solder.

[0010] Furthermore, the inner core matrix is ​​made of tungsten, molybdenum metal or alloys thereof, or is made of stainless steel.

[0011] Furthermore, the metal outer layer is made of copper, tin, zinc, cobalt, nickel, manganese or alloys thereof.

[0012] Furthermore, the metal outer layer includes a first metal layer and a second metal layer. The inner core substrate, the first metal layer and the second metal layer are arranged in sequence from the inside to the outside. The first metal layer is made of copper or copper alloy, and the second metal layer is made of zinc, tin or its alloy.

[0013] Furthermore, an intermediate diffusion prevention layer is provided between the first metal layer and the inner core substrate, and the intermediate diffusion prevention layer is made of tungsten, molybdenum, iron, nickel, manganese or an alloy thereof.

[0014] Furthermore, the metal wire includes a first metal wire and a second metal wire, the first metal wire is ring-shaped, and the second metal wire is spirally wound around the first metal wire or twisted on the outside of the first metal wire.

[0015] Furthermore, one end of the first metal wire and one end of the second metal wire are integrally formed.

[0016] A diamond cutting wire comprises the above-mentioned metal wire ring and diamond abrasive grains, wherein the diamond abrasive grains are plated and fixed on the outer surface of the metal wire ring.

[0017] The utility model has the following beneficial effects:

[0018] 1. The utility model provides a metal wire ring, which is formed by weaving a metal wire with a weldable metal outer layer through one or more methods of connecting the ends, self-winding, and winding two or more strands with each other. The joint position, that is, the end of the metal wire can be fixed to itself by welding through the metal outer layer. The fixing is convenient and quick, and it is not easy to loosen and pierce after being fixed, which is conducive to increasing the service life of the metal wire ring.

[0019] 2. The utility model provides a metal wire ring, the joint of which, i.e., the end of the metal wire, is fixed by soldering. By controlling the welding temperature and the amount of soldering, the joint can be sealed without increasing the diameter of the metal wire ring. After being welded and fixed, the joint position can be normally degreased, rust-removed, nickel-plated, etc., and a better quality diamond cutting wire can be obtained without changing the original production process.

[0020] 3. The utility model provides a diamond cutting wire using the above-mentioned metal wire ring. The diamond cutting wire has fewer defects and weak points, has a lower risk of loosening, breaking and failure during use, and has a longer service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of the metal wire ring of the utility model (1).

[0022] Figure 2 This is a schematic diagram of the cross-sectional structure of the metal wire of the utility model (1).

[0023] Figure 3 This is a schematic diagram of the cross-sectional structure of the metal wire of the present utility model (II).

[0024] Figure 4 This is a schematic diagram of the cross-sectional structure of the metal wire of the present utility model (3).

[0025] Figure 5 This is a schematic diagram of the winding of the first metal wire and the second metal wire of the present invention.

[0026] Figure 6 This is a schematic diagram of the metal wire ring structure of the utility model (II).

[0027] Figure 7 for Figure 6 A partial enlarged schematic diagram of the structure of Part I.

[0028] Figure 8 for Figure 6 AA section structure diagram.

[0029] Explanation of the main component symbols: 1. Metal wire; 2. Inner core substrate; 3. Metal outer layer; 4. First metal layer; 5. Second metal layer; 6. Intermediate diffusion prevention layer; 7. Sealing section; 8. First metal wire; 9. Second metal wire. DETAILED DESCRIPTION

[0030] The present invention will be further described below with reference to the accompanying drawings and specific implementation methods.

[0031] Example 1: Figure 1-2 As shown, the utility model discloses a metal wire ring, comprising a metal wire 1. The metal wire 1 comprises an inner core matrix 2 and a metal outer layer 3. The inner core matrix 2 is made of tungsten, molybdenum metal or its alloy, or stainless steel. The metal outer layer 3 is made of weldable ductile metal and covers the outer surface of the inner core matrix 2. The metal wire 1 in the metal wire ring can be provided as a single strand, a double strand or multiple strands, and can be woven into a ring shape by one or more methods including end-to-end connection, self-winding, and winding of two or more strands to obtain a metal wire ring.

[0032] Due to the weldability of the outer metal layer 3, the end of any strand of metal wire 1 can be welded to itself or to another strand of metal wire 1 through the outer metal layer 3. Fixing is simple and quick, and after welding, the end of the metal wire 1, i.e., the joint of the wire loop, is less likely to loosen, unravel, or pierce, thereby ensuring the quality of the wire loop and extending its service life.

[0033] The metal outer layer 3 is a single or multi-layer metal layer bonded to the inner core substrate 1 by hot-dip, electroplating, chemical plating, etc. It can be made of copper, tin, zinc, cobalt, nickel, manganese metal or their alloys and has weldability under normal conditions.

[0034] As the basis for welding fixation, when the metal outer layer 3 adopts a single-layer structure, the corresponding cross-sectional structure of the metal wire 1 is as follows: Figure 2 As shown, the metal outer layer 3 is preferably made of brass.

[0035] When the metal outer layer 3 adopts a double-layer structure, the corresponding cross-sectional structure of the metal wire 1 is as follows: Figure 3 As shown, at this time, the metal outer layer 3 includes a first metal layer 4 and a second metal layer 5. The inner core substrate 2, the first metal layer 4 and the second metal layer 5 are arranged in sequence from the inside to the outside. The first metal layer 4 is made of copper or a copper alloy, and the second metal layer 5 is made of zinc, tin or an alloy thereof. The alloying effect during thermal diffusion fusion with the first metal layer 4 is better.

[0036] On this basis, if Figure 4 As shown, an intermediate diffusion prevention layer 6 can be added between the first metal layer 4 and the inner core substrate 2. The intermediate diffusion prevention layer 6 is made of tungsten, molybdenum, iron, nickel, manganese, or alloys thereof. Tungsten or molybdenum is preferably used. During the production process of the metal wire 1, the intermediate diffusion prevention layer 6 can prevent the inner core substrate 2 from diffusing into the first metal layer 4 and improve the bonding strength.

[0037] During welding, the end of any strand of wire 1 can be brazed and secured to itself or another strand of wire 1 using a low-melting-point metal solder. Brazing the ends of the wires 1 offers advantages such as minimal deformation and a smooth, aesthetically pleasing joint. By controlling the welding temperature and the amount of low-melting-point metal solder used, the ends of the wires 1, i.e., the joints of the wire loops, can be perfectly sealed. The resulting sealing section 7 prevents the wire 1 ends from piercing or becoming loose, potentially causing the loop to become loose, without increasing the diameter of the loop and without affecting subsequent operations such as degreasing, rust removal, and nickel plating. This means that when using this wire loop to produce diamond cutting wire, a product with improved quality and a longer service life can be obtained without changing the existing diamond cutting wire production process.

[0038] The low-melting-point metal solder can be in a variety of forms, including but not limited to welding wire, solder paste, and solder powder. Preferably, the low-melting-point metal solder is made of solder material. Taking solder wire as an example, during welding, a layer of flux can be applied to the surface of the end of the metal wire 1 and then heated. The solder wire is then placed at the end of the metal wire 1 and heated to melt it into a liquid state. The melted solder wire can flow on the surface of the metal wire 1, infiltrating the metal outer layer 3, and filling and retaining the gap around the end of the metal wire 1 through capillary action. After solidification, a weld structure, namely a solder sealing section 7, is formed, which firmly connects the end of the metal wire 1 to its surroundings.

[0039] Unlike soldering with wire, solder paste can be applied directly to the end of the wire 1. Heat and melt the paste, allowing it to diffuse and penetrate the gaps in the wire loops, thereby solidifying the joint. Prior to operation, flux can be applied to the surface of the wire 1 or not, depending on practical convenience.

[0040] According to the use requirements, the metal wire ring can be formed into a ring in a variety of ways. When the metal wire ring is composed of a single strand of metal wire 1, such as Figure 1 As shown, the metal wire 1 can be bent into a ring shape, and the ends are welded and fixed to each other.

[0041] You can also use Figure 5 In the manner shown, the metal wire 1 is divided into a first metal wire 8 and a second metal wire 9 for winding. As an example, Figure 6-8 As shown, the first metal wire 8 is bent into a ring shape as the inner core of the metal wire ring, and the second metal wire 9 is spirally wound around the first metal wire 8 to improve the overall tensile strength. After the second metal wire 9 is wound 6 times, it forms the following Figure 6 Wire loop shown.

[0042] In general, the first metal wire 8 and the second metal wire 9 are relatively independent before braiding, that is, the metal wire loop is formed by twisting two or more metal wires together. In special cases, one end of the first metal wire 8 and one end of the second metal wire 9 can also be integrally formed, which is equivalent to using a single metal wire 1, bending a portion of it into a loop, and spirally twisting the other portion to form a metal wire loop.

[0043] In summary, the metal wire ring has various structural forms and excellent quality, with firm joints, few overall defects, not easy to loosen, and long service life.

[0044] Example 2: Based on Example 1 above, the present invention discloses a diamond cutting wire comprising the aforementioned wire loop and diamond abrasive particles, with the diamond abrasive particles being plated and bonded to the outer surface of the wire loop. This diamond cutting wire is of high quality, with few overall defects and weak points, and has a low risk of loose joints and wire breakage during use, resulting in a long service life.

[0045] Although the present invention has been specifically shown and described in conjunction with the preferred embodiments, it should be understood by those skilled in the art that various changes in form and details of the present invention are within the scope of protection of the present invention without departing from the spirit and scope of the present invention as defined in the appended claims.

Claims

1. A metal wire ring, characterized in that: The invention comprises a metal wire, wherein the metal wire comprises an inner core matrix and a metal outer layer, wherein the metal outer layer is a weldable ductile metal layer and covers the outer surface of the inner core matrix; the metal wire is woven into a ring shape by one or more methods including end-to-end connection, self-winding, and two or more strands winding with each other, and the end of the metal wire is welded and fixed by the metal outer layer.

2. A metal wire ring according to claim 1, characterized in that: The end of any of the metal wires is fixed to itself or to other metal wires by brazing with a low melting point metal solder.

3. A wire ring according to claim 2, characterized in that: The low melting point metal solder is solder.

4. The metal wire ring according to claim 1, wherein: The inner core matrix is ​​made of tungsten, molybdenum metal or alloys thereof, or stainless steel.

5. The metal wire ring according to claim 1, wherein: The metal outer layer is made of copper, tin, zinc, cobalt, nickel, manganese or alloys thereof.

6. The metal wire ring according to claim 1, wherein: The metal outer layer includes a first metal layer and a second metal layer. The inner core substrate, the first metal layer and the second metal layer are arranged in sequence from the inside to the outside. The first metal layer is made of copper or a copper alloy, and the second metal layer is made of zinc, tin or an alloy thereof.

7. A wire ring according to claim 6, characterized in that: An intermediate diffusion prevention layer is provided between the first metal layer and the inner core substrate, and the intermediate diffusion prevention layer is made of tungsten, molybdenum, iron, nickel, manganese or an alloy thereof.

8. The metal wire ring according to claim 1, wherein: The metal wire includes a first metal wire and a second metal wire. The first metal wire is ring-shaped, and the second metal wire is spirally wound around the first metal wire or twisted on the outside of the first metal wire.

9. A metal wire ring according to claim 8, characterized in that: One end of the first metal wire and one end of the second metal wire are integrally formed.

10. A diamond cutting wire, characterized by: The invention comprises the wire ring according to any one of claims 1 to 9 and diamond abrasive grains, wherein the diamond abrasive grains are plated and fixed on the outer surface of the wire ring.

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