A combined multifunctional diamond saw blade and its manufacturing method

Abstract

The present invention proposes a combined multifunctional diamond saw blade and a manufacturing method thereof, which relates to the technical field of saw blades, and comprises a saw blade base and a saw blade blade portion, wherein a plurality of notches are provided in the circumferential direction of the outer periphery of the saw blade base, a reinforcing strip is sleeved on the outer periphery of the saw blade base, the saw blade base and the reinforcing strip are welded, the saw blade blade portion is sintered on the outer periphery of the saw blade base, and the reinforcing strip is wrapped by the saw blade blade portion. The present invention proposes a combined multifunctional diamond saw blade and a manufacturing method thereof, wherein the toughness at the edge of the saw blade base is increased by providing the saw blade base, the saw blade blade portion and the reinforcing strip, and during the cutting operation of the diamond saw blade, the cracking or even breaking of the diamond saw blade is reduced, thereby increasing the performance and service life of the diamond saw blade, and reducing accidents caused by the cracking or breaking of the diamond saw blade.

Description

Technical Field

[0001] The invention relates to the technical field of saw blades, and in particular to a combined multifunctional diamond saw blade and a manufacturing method thereof. Background Art

[0002] Diamond saw blade is a cutting tool. Diamond saw blade is usually composed of a base and a cutter head. The base is the main supporting part of the bonded cutter head. Diamond saw blade can be used to cut hard and brittle materials such as concrete, refractory materials, stone, ceramics, etc.

[0003] Currently, the flatness of diamond saw blades needs to be ensured during manufacturing. In order to ensure the flatness of the cutting surface and make higher utilization of the cut material, the flatness of the saw blade has a great influence on the cutting effect. Uneven saw blades are prone to cause vibration during the cutting process, which not only results in unsatisfactory cutting effects, but also affects the life of the diamond saw blade. Uneven saw blades may cause the saw blade to bear greater stress during cutting, thereby causing the saw blade to crack. Summary of the invention

[0004] Based on the technical problems existing in the background technology, the present invention proposes a combined multifunctional diamond saw blade and a manufacturing method thereof.

[0005] The present invention proposes a combined multifunctional diamond saw blade, comprising a saw blade base and a saw blade blade portion, wherein a plurality of notches are opened in the circumferential direction of the outer periphery of the saw blade base, a reinforcing strip is sleeved on the outer periphery of the saw blade base, the saw blade base and the reinforcing strip are welded, the saw blade blade portion is sintered on the outer periphery of the saw blade base, and the reinforcing strip is wrapped by the saw blade blade portion.

[0006] Preferably, the reinforcement strip is made of titanium alloy and has a ring-shaped serrated shape.

[0007] Preferably, a grinding portion is sintered on one side of the saw blade base.

[0008] A method for manufacturing a combined multifunctional diamond saw blade, the manufacturing steps are as follows:

[0009] Step 1: hydraulically cutting the steel sheet into a saw blade base;

[0010] Step 2: Put the reinforcing strip on the outer periphery of the saw blade base and weld it, and then grind the welding part;

[0011] Step 3: Prepare diamond abrasive materials, and mix diamond abrasive and binder in proportion to form a mixture;

[0012] Step 4: Place the saw blade base in the mold, pour the mixture evenly into the mold, and then perform extrusion to extrude the mixture onto the outer periphery of the saw blade base to form a rough diamond saw blade;

[0013] Step 5: The rough diamond saw blade is placed in a mold, and then the surface of the mixture extruded from the outer periphery of the saw blade base is extruded to form a pattern;

[0014] Step 6: After the diamond saw blade is clamped and shaped, it is sintered;

[0015] Step 7: Grinding the diamond saw blade;

[0016] Step 8: Polish and paint the diamond saw blade.

[0017] Preferably, in step 2, when the reinforcing strip is welded to the outer periphery of the saw blade base, it is necessary to ensure the welding quality, prevent the weld from becoming a weak link, and grind the welded part to make it smooth.

[0018] Preferably, in step 3, the diamond material includes diamond powder, a binder, a filler and an additive; diamond powder is tiny particles obtained by fine processing of diamond particles.

[0019] Preferably, the binder is used to bond the diamond powder to the saw blade substrate, and the binder includes tweezers powder, cobalt powder, and iron powder.

[0020] Preferably, the filler is used to improve the mechanical properties of the diamond saw blade, and the filler includes copper powder and silicon carbide.

[0021] Preferably, the additive is used to improve the heat resistance and durability of the diamond saw blade. The additive can also reduce the friction and wear of the diamond saw blade. The additive includes nano-alumina, nano-molybdenum disulfide and copper alloy.

[0022] Preferably, the sintering treatment in step 6 is used to solidify the rough diamond saw blade, the sintering time is 3-15 hours, and the sintering temperature is 1200°C-1600°C.

[0023] The combined multifunctional diamond saw blade and the manufacturing method thereof proposed in the present invention have the following beneficial effects: by providing the saw blade base, the saw blade edge and the reinforcing strip, the toughness at the edge of the saw blade base is increased, and during the diamond saw blade cutting operation, the cracking or even breakage of the diamond saw blade is reduced, thereby increasing the performance and service life of the diamond saw blade and reducing accidents caused by the cracking or breakage of the diamond saw blade. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A structural diagram of one side of a combined multifunctional diamond saw blade proposed by the present invention;

[0025] Figure 2 A structural diagram of another side surface of a combined multifunctional diamond saw blade proposed by the present invention;

[0026] Figure 3 The present invention is a schematic structural diagram of a combined multifunctional diamond saw blade in which a reinforcing strip and a saw blade base are welded together.

[0027] In the figure: 1. saw blade base; 2. saw blade edge; 3. reinforcement strip; 4. grinding part. DETAILED DESCRIPTION

[0028] Reference Figure 1-Figure 3 The present invention provides a combined multifunctional diamond saw blade, comprising a saw blade base 1 and a saw blade edge 2. The outer periphery of the saw blade base 1 is provided with a plurality of notches. The outer periphery of the saw blade base 1 is provided with a reinforcing strip 3. The saw blade base 1 and the reinforcing strip 3 are welded. The reinforcing strip 3 is made of titanium alloy and has an annular sawtooth shape. Figure 3 As shown in , titanium alloy has high strength and high toughness. The strength of titanium alloy is equivalent to that of steel, but its density is much lighter than that of steel, which makes titanium alloy the preferred material for lightweight and high-strength structures; High toughness: Titanium alloys have good toughness, which means that they can withstand large plastic deformation without breaking. The saw blade edge 2 is sintered on the periphery of the saw blade base 1, and the reinforcement strip 3 is wrapped by the saw blade edge 2. A plurality of openings are opened on the periphery of the saw blade edge 2. During cutting operations, if the diamond saw blade is hit by external force or the installation is crooked, the diamond saw blade in this state will be torn. In most cases, the diamond saw blade is torn from the edge of the diamond saw blade. Due to the design of the reinforcement strip 3, the toughness of the periphery of the saw blade base 1 is increased, the tearing strength of the diamond saw blade can be improved, and the tearing of the diamond saw blade during cutting operations can be reduced. It can be suitable for cutting various materials.

[0029] In actual situations, diamond saw blades are not used as grinding tools because the cutting edge area of ​​diamond saw blades is small, which makes it inconvenient to operate during grinding. The cutting portion of the diamond saw blade is provided with a cutting edge, which may cause the grinding material to break or deform during grinding. For example, when grinding the edge of a tile, when the opening of the saw blade blade 2 passes through the raised position of the tile edge, the raised position will enter the opening of the saw blade blade 2, and the edge of the opening will hit the raised position of the tile edge, causing the tile to break. A grinding portion 4 is sintered on one side of the saw blade base 1. The grinding portion 4 is added to the side of the saw blade base 1. The main materials of the grinding portion 4 are alumina, zirconium oxide and a binder. By increasing the contact area, the grinding effect is better. The side of the saw blade base 1 is a plane, which reduces the possibility of the raised position of the material being hit and breaking or deforming. The speed of the cutting machine can be adjusted during grinding.

[0030] The production steps of diamond saw blade are as follows:

[0031] Step 1: The steel sheet is hydraulically cut to form a saw blade base 1; when cutting the steel sheet, it is necessary to ensure that the steel sheet is flat and has no bumps, and place it on the workbench of the cutting machine. After the cutting is completed, use a measuring tool to check whether the size and shape of the saw blade base meet the requirements. If necessary, use a cutting tool to cut the edge of the steel sheet to remove burrs to obtain a smooth surface.

[0032] Step 2: Put the reinforcing strip 3 on the periphery of the saw blade base 1 and weld it, then grind the weld; when welding the reinforcing strip 3, it is necessary to ensure that the material of the reinforcing strip 3 meets the requirements, has no defects, and has a smooth surface. According to the design requirements, put the reinforcing strip 3 on the periphery of the saw blade base 1 to ensure that the position is correct and there is no interference. When welding, use welding equipment to connect the reinforcing strip 3 to the saw blade base 1 to ensure that the welding is firm and there is no cold weld. The heat and welding time should be controlled during the welding process to avoid deformation of the base. After welding is completed, check whether there are defects at the weld, such as cracks, pores, etc. If there are defects, they should be repaired or re-welded. Finally, use a grinding wheel or file to grind the weld to remove welding slag and burrs, make the surface smooth, and prevent the weld from becoming a weak link.

[0033] Step 3: Prepare the corundum material, and mix the diamond abrasive and the binder in proportion to form a mixture; the corundum material includes corundum powder, binder, filler and additives; diamond powder is a tiny particle obtained after fine processing of diamond particles; the binder refers to the metal powder used to connect the diamond powder to the matrix. Common metal binders include nickel, cobalt, iron and other metal powders. These metal powders are combined with the diamond powder and the matrix to form a strong bond, thereby improving the stability and durability of the diamond saw blade (in addition, the binder also includes resin, but the diamond saw blade using resin as a binder is usually used for cutting softer materials, such as cutting non-metallic materials such as wood and plastic). The binder is used to bond the diamond powder to the saw blade matrix 1. The binder includes tweezers powder, cobalt powder, iron powder, etc.

[0034] Fillers are used to improve the mechanical properties of diamond saw blades. Fillers include copper powder and silicon carbide. The addition of copper powder can improve the welding performance between diamond and steel matrix, because copper has good weldability and conductivity, which helps to achieve good bonding between diamond and steel matrix during brazing. Copper has high thermal conductivity, which helps to conduct the heat generated during cutting in time, reduce the thermal stress and thermal deformation of the saw blade, and improve the durability of the saw blade. During the use of the saw blade, copper powder can help the heat quickly dissipate from the cutting area to the edge of the saw blade, reducing the problem of overheating of the saw blade. The copper powder itself has a certain wear resistance, which can enhance the wear resistance of the binder, thereby improving the cutting efficiency and durability of the saw blade. Fillers usually refer to solid particles or fibers used to reinforce composite materials or improve material properties. In diamond saw blades, fillers can improve the mechanical properties of the saw blade, such as strength, wear resistance and durability. The role of the filler is to form a microscopic skeleton in the matrix material to enhance the overall performance of the material.

[0035] Additives are used to improve the heat resistance and durability of diamond saw blades. Additives can also reduce the friction and wear of diamond saw blades. Additives include nano-alumina, nano-molybdenum disulfide and copper alloy. Nano-alumina, nano-molybdenum disulfide and copper alloy are added to the binder as additives in the form of powder. Nano-alumina can improve the wear resistance and corrosion resistance of diamond saw blades and enhance the cutting performance of saw blades. It can also improve the thermal conductivity of saw blades, help to better dissipate heat during the cutting process, reduce the impact of heat on diamond particles, and extend the life of saw blades; nano-molybdenum disulfide, as a lubricant, can form a lubricating film on the friction surface of diamond saw blades, reduce friction and wear, and improve the self-lubricating performance of saw blades. This helps to reduce energy consumption during the cutting process, reduce the wear of saw blades, and improve cutting efficiency; copper alloy can improve the thermal conductivity and electrical conductivity of diamond saw blades, which helps the heat dissipation and current conduction of saw blades during the cutting process. In addition, copper alloys can enhance the strength and toughness of saw blades, reduce the risk of brittle fracture, and are suitable for complex cutting tasks. It should be noted that anti-copper corrosion agents are also needed to reduce the corrosion of molybdenum disulfide to copper or copper alloys. Nano-molybdenum disulfide mixed into additives can make it more stable during use, extend the service life of diamond saw blades, and reduce the waste of lubricants because the lubricants will be more effectively absorbed and utilized by diamond saw blades.

[0036] Step 4: Place the saw blade base 1 in the mold, pour the mixture evenly into the mold, and then perform extrusion to extrude the mixture onto the periphery of the saw blade base 1 to form a rough diamond saw blade; pour the mixture into the prepared mold, and then use a scraper to evenly distribute the mixture on the edge of the saw blade base 1, and then evenly apply the material of the grinding part 4 (the materials include alumina, zirconium oxide and a binder) on one side of the saw blade base 1 to form an annular area, and then perform extrusion to make the mixture flat by extrusion to form a rough saw blade 2. During extrusion, it is necessary to ensure that both sides of the saw blade 2 are flat, and at the same time, the rough grinding part 4 also needs to ensure the surface is flat; the Mohs hardness of alumina is 9, second only to diamond. Stone, alumina is resistant to acid and alkali, and does not react easily with most chemicals. It is suitable for grinding operations in various environments. Alumina powder or particles can be used for fine polishing, which can remove tiny scratches and flaws on the surface of the material and make the surface smooth. Alumina grinding wheels are effective in cutting hard materials such as metals and ceramics, and can quickly remove materials without damaging the surface; the hardness of zirconium oxide is equivalent to that of alumina, and it is also a high-hardness material with good wear resistance. Zirconia has excellent high-temperature stability and can maintain its physical and chemical properties in a high-temperature environment. It is suitable for high-temperature grinding and polishing, but zirconium oxide has better impact resistance than alumina, and is suitable for use in environments with large vibrations, which can reduce the risk of breakage of the grinding part 4.

[0037] Step 5: Place the rough diamond saw blade in the mold, and then extrude the surface of the mixture extruded at the periphery of the saw blade base 1 to form textures; increase the surface roughness of the saw blade edge 2, thereby increasing the friction between the cut material and the saw blade edge 2, and improving the cutting efficiency. The textures can also be extruded to make the surface of the saw blade edge 2 more stable, reduce vibration and deviation during cutting, and improve cutting stability and accuracy.

[0038] Step 6: After the diamond saw blade is clamped and shaped, it is sintered. The sintering process is to heat the mixture of diamond particles and metal powder to a high temperature, and through the combined effect of pressure and temperature, the saw blade 2 is solidified together, and the saw blade 2 and the saw blade base 1 form an integrated structure. During sintering, it is necessary to keep the sintering furnace free of air, usually nitrogen or hydrogen is introduced. The sintering process is used to solidify the rough diamond saw blade, and the sintering time is 3-15h; the sintering temperature is 1200℃-1600℃, and the specific temperature needs to be based on the actual use of the diamond saw blade. Adjustment is made. The saw blade base 1 may be deformed due to high temperature during the sintering process. In actual situations, when the diamond saw blade is uneven, during the cutting operation, the saw blade 2 of the diamond saw blade will not be on the same plane when rotating, which will cause the cutting to be uneven, affecting the cutting quality, and even causing uneven force on the saw blade 2, causing the entire diamond saw blade to deform and break. During the sintering process, the saw blade base 1 needs to be clamped and shaped to reduce the deformation of the saw blade base 1. The specific operating steps are:

[0039] 1. Clamping and shaping: Before sintering, it is necessary to ensure that the segment of the diamond saw blade has been firmly clamped and shaped to ensure that the shape will not change under high temperature and high pressure.

[0040] 2. Heating and pressurizing: Place the clamped diamond saw blade into the sintering equipment, and sinter the metal powder and diamond particles by controlling the temperature and pressure; usually, the sintering temperature is set near the melting point of the metal powder, and the pressure is sufficient to connect the particles.

[0041] 3. Insulation and pressure maintenance: After reaching the sintering temperature and pressure, it is necessary to maintain insulation and pressure for a period of time to ensure the complete sintering process.

[0042] 4. Cooling: After sintering, the diamond saw blade needs to be slowly cooled to room temperature to prevent deformation or cracks caused by thermal stress.

[0043] Sintering can significantly increase the bonding strength between diamond particles and metal powder, making the cutter head stronger and more durable. Through sintering, the diamond particles are more evenly distributed in the metal powder, thereby improving the cutting performance of the saw blade. The sintered diamond saw blade has higher wear resistance and can maintain good cutting effect during long-term use. The sintering process can optimize the performance of the diamond saw blade, making it more efficient when cutting hard materials.

[0044] Step 7: Grind the diamond saw blade; grinding is to improve the surface quality of the diamond saw blade, make its edge smooth, and enhance the cutting performance and service life of the saw blade. After the sintering process is completed, wait for the diamond saw blade to cool to room temperature, check the appearance of the diamond saw blade, and identify any problems in the sintering process, such as cracks, deformation or unevenness. Grinding is to use professional grinding equipment and methods to process the surface of the diamond saw blade. This usually includes grinding the edge and surface of the saw blade with a diamond wheel or other abrasive to remove excess material or uneven areas that may be produced during the sintering process. After grinding, the surface of the saw blade needs to be cleaned to remove dust and debris generated during the grinding process. After grinding, the diamond saw blade needs to be inspected and corrected for flatness to ensure that it meets strict size and shape requirements. Grinding can significantly improve the surface quality of the diamond saw blade, reduce friction and resistance during cutting, and improve cutting efficiency. Grinding can ensure that the diamond particles are evenly distributed on the surface of the saw blade, enhancing the cutting performance of the saw blade. Grinding can remove uneven or excess material that may cause damage to the saw blade, thereby extending the service life of the diamond saw blade. Precise grinding of the diamond saw blade can improve the dimensional accuracy and shape accuracy of the saw blade, thereby improving cutting accuracy.

[0045] Step 8: Polish and paint the diamond saw blade. Polishing is to grind the exposed parts on both sides of the saw blade base 1. When the diamond saw blade is installed, the diamond saw blade is mounted on the rotating shaft and clamped by clamps on both sides. In order to ensure that the diamond saw blade will not deflect greatly during the rotation process during the cutting process, it is necessary to clean the installation position and the surface of the diamond saw blade to ensure that the diamond saw blade will not deflect due to foreign matter during installation, thereby reducing the deflection of the diamond saw blade during installation, and the deformation or breakage of the diamond saw blade due to uneven force during the cutting process; the paint layer can protect the surface of the diamond saw blade from oxidation and pollution, and extend the service life of the saw blade. The paint layer can also reduce accidental damage to the diamond saw blade during transportation and use, ensuring safe use.

[0046] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A combined multifunctional diamond saw blade, characterized in that: The saw blade base (1) comprises a saw blade substrate (1) and a saw blade blade portion (2), wherein a plurality of notches are provided in the circumferential direction of the outer periphery of the saw blade base (1), a reinforcing strip (3) is sleeved on the outer periphery of the saw blade base (1), the saw blade base (1) and the reinforcing strip (3) are welded, the saw blade blade portion (2) is sintered on the outer periphery of the saw blade base (1), and the reinforcing strip (3) is wrapped by the saw blade blade portion (2); The material of the reinforcement strip (3) is titanium alloy, and the reinforcement strip (3) is annularly serrated.

2. A combined multifunctional diamond saw blade and a method for manufacturing the same according to claim 1, characterized in that: A grinding portion (4) is sintered on one side of the saw blade base (1).

3. A method for manufacturing a combined multifunctional diamond saw blade, used for manufacturing a combined multifunctional diamond saw blade as claimed in any one of claims 1 to 2, characterized in that: The production steps are as follows: Step 1: hydraulically cutting a steel sheet into a saw blade base (1); Step 2: The reinforcing strip (3) is mounted on the outer periphery of the saw blade base (1) and welded, and then the welded portion is polished; Step 3: Prepare diamond abrasive materials, and mix diamond abrasive and binder in proportion to form a mixture; Step 4: placing the saw blade base (1) in a mold, pouring the mixture evenly into the mold, and then performing an extrusion operation to extrude the mixture onto the outer periphery of the saw blade base (1) to form a rough diamond saw blade; Step 5: The rough diamond saw blade is placed in a mold, and then a pattern is extruded on the surface of the mixture extruded on the periphery of the saw blade base (1); Step 6: After the diamond saw blade is clamped and shaped, it is sintered; Step 7: Grinding the diamond saw blade; Step 8: Polish and paint the diamond saw blade.

4. The method for manufacturing a combined multifunctional diamond saw blade according to claim 3, characterized in that: In step 2, when the reinforcing strip (3) is welded to the outer periphery of the saw blade base (1), it is necessary to ensure the welding quality, prevent the weld from becoming a weak link, and grind the welded part to make it smooth.

5. The method for manufacturing a combined multifunctional diamond saw blade according to claim 3, characterized in that: In step 3, the diamond material includes diamond powder, a binder, a filler and an additive; diamond powder is tiny particles obtained by fine processing of diamond particles.

6. The method for manufacturing a combined multifunctional diamond saw blade according to claim 5, characterized in that: The bonding agent is used to bond the diamond powder to the saw blade substrate (1), and the bonding agent includes tweezers powder, cobalt powder and iron powder.

7. The method for manufacturing a combined multifunctional diamond saw blade according to claim 5, characterized in that: Fillers are used to improve the mechanical properties of diamond saw blades, and fillers include copper powder and silicon carbide.

8. The method for manufacturing a combined multifunctional diamond saw blade according to claim 5, characterized in that: Additives are used to improve the heat resistance and durability of diamond saw blades. Additives can also reduce the friction and wear of diamond saw blades. Additives include nano-alumina, nano-molybdenum disulfide and copper alloy.

9. The method for manufacturing a combined multifunctional diamond saw blade according to claim 3, characterized in that: The sintering process in step 6 is used to solidify the rough diamond saw blade. The sintering time is 3-15 hours and the sintering temperature is 1200°C-1600°C.

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