High Precision Diamond Saw Blade Production Process

Abstract

The invention relates to a high-precision diamond saw blade production process and to the technical field of diamond saw blade production. The process comprises the following steps: step one, preparation of a substrate; step two, preparation of a cutter head; step three, positioning the cutter head welding position, uniformly positioning the circumference of the saw blade substrate sintered in step one; step four, welding the cutter head: laser welding the saw blade cutter head sintered in step two to the positioning point of the saw blade substrate in step three; step five, sharpening, placing the diamond saw blade in step four on a sharpening machine to sharpen its agglomeration; step six, surface treatment of the saw blade; and step seven, packaging and warehousing. Positioning points are evenly drawn on the circumference of the saw blade substrate, and then when laser welding is performed, the positioning points are ensured to be located directly above the saw blade substrate, so that each cutter head is located on the positioning point, thereby ensuring the uniformity of the cutter head and improving the precision of the processing when the diamond saw blade is used for processing.

Description

Technical Field

[0001] The invention relates to the technical field of diamond saw blade production, in particular to a high-precision diamond saw blade production process. Background Art

[0002] Diamond saw blade is a cutting tool, widely used in the processing of hard and brittle materials such as concrete, refractory materials, stone, ceramics, etc. Diamond saw blade is mainly composed of two parts: the base and the cutter head. The base is the main supporting part of the bonded cutter head, and the cutter head is the cutting part during use. During use, the cutter head will be continuously consumed due to wear. Since the cutter head contains diamond, diamond, as the hardest substance, rubs and cuts the object being processed during cutting, so it can process hard materials.

[0003] As disclosed in publication number CN105965702B, a high-precision diamond saw blade production process includes the following process flow: batching, cold pressing, sintering, welding, sharpening, packaging and other steps, wherein the chemical composition wt% of the base steel used to manufacture the high-strength wear-resistant diamond saw blade is: C is 0.50%, Sn is 0.20%, Zn is 0.30%, Ni is 0.20%, Co is 0.03%, W is 0.15%, Ti is 0.05%, Pb is 0.60%, and the rest is Fe and impurities. The diamond saw blade produced by this process has the advantages of high strength and wear resistance, and is suitable for mass production, which effectively reduces the production cost of the enterprise and improves product quality.

[0004] With the development of the times, the precision of machine tool processing is required to be continuously improved. As a processing tool for processing high-hardness materials, the performance of diamond saw blades is also required to be continuously improved to adapt to high-precision production work. At present, the base and the cutter head of diamond saw blades are mostly made separately during processing, and then welded together to make diamond saw blades. Now welding is mostly done by machine tool welding. Due to the gaps between the various parts of the welding machine tool, there will be a certain deviation in the distance between the diamond cutter heads of the same diamond saw blade, which will affect the processing accuracy when the diamond saw blade is used for processing. Summary of the invention

[0005] In order to overcome the technical defects of the prior art, the present invention provides a high-precision diamond saw blade production process. During processing and manufacturing, positioning points are first evenly drawn on the circumference of the saw blade base, and then during laser welding, the positioning points are ensured to be located directly above the saw blade base, so that each cutter head is located on the positioning point, thereby ensuring the uniformity of the cutter head, so that the processing accuracy will not be affected when using the diamond saw blade for processing.

[0006] The technical solution adopted by the present invention is: a high-precision diamond saw blade production process, comprising the following steps:

[0007] Step 1, preparation of the matrix: iron powder, carbon powder, silicon powder, manganese powder, and vanadium powder are fully mixed in a certain proportion, and then the mixed powder is placed in a matrix mold for sintering. When mixing, the proportions of each component are: carbon powder 0.5%, silicon powder 0.25%, manganese powder 1.6%, vanadium powder 0.1%, and the remaining components are iron powder and impurities. The above powders are placed in a stirring mixer in proportion for full mixing, and then the mixed powder is placed in a matrix mold for cold pressing. The cold pressing pressure is controlled between 2.75-3.25T / cm2 so that the powder is pressed into a matrix model, and then the matrix model is placed in a sintering furnace for high-temperature sintering. The sintering temperature is controlled between 950-1050°C and the sintering time is 5-6 hours. After sintering, a nitrogen-hydrogen mixed gas is introduced for cooling.

[0008] Step 2, preparation of the cutter head: diamond particles, tungsten carbide powder, cobalt powder, and copper powder are fully mixed in a certain proportion, and then the mixed powder is placed in a cutter head mold for sintering. When mixing, the weight ratio of each component is: 10-20 parts of diamond particles, 30-40 parts of tungsten carbide powder, 5-10 parts of cobalt powder, and 2-5 parts of copper powder. Then the mixed powder is placed in a cutter head mold for cold pressing. The cold pressing pressure is 4.25-4.75T / cm2, so that the powder is pressed into a cutter head model. The cutter head model is placed in a sintering furnace for high-temperature sintering. The sintering temperature is controlled between 800-850℃, and the sintering time is 2-2.5 hours. After sintering, a nitrogen-hydrogen mixed gas is introduced for cooling.

[0009] Step three, positioning the welding position of the cutter head: evenly position the circumference of the saw blade base sintered in step one, place the saw blade base formed in step one on a positioning machine, and evenly draw positioning points on the circumference of the saw blade base by setting the distance between the positioning points, and set the distance between the positioning points according to the diameter of the saw blade base.

[0010] Step 4, welding the cutter head: laser weld the saw blade cutter head sintered in step 2 to the positioning point of the saw blade base in step 3. When welding, place the saw blade base after the positioning point is drawn vertically on the laser welding machine, clamp the center point of the saw blade base and rotate it to fix it. The positioning point is identified by the identification device directly above the saw blade base. When the positioning point moves to directly below the identification device, the identification device identifies it and fixes the saw blade base at the same time, so that a positioning point is located directly above the saw blade base. Then, the cutter head is placed on the positioning point by the mechanical arm, and the cutter head is welded to the positioning point of the saw blade base by the welding arm. Then, the saw blade base is rotated so that the next positioning point is located directly above the saw blade base. Repeat the operation until the welding of all cutter heads of a saw blade base is completed.

[0011] Step 5, sharpening: Place the diamond saw blade in step 4 on the sharpening machine to sharpen its agglomerates. The first step is to sharpen the side edge. Install the diamond saw blade on the sharpening machine and make the diamond saw blade rotate with the grinding wheel. Adjust the position of the grinding wheel and the diamond saw blade so that they gradually approach each other until all the diamonds on one side of the saw teeth are sharpened. Then reverse the diamond saw blade and use the same method to sharpen the other side edge and make all the diamonds sharpened. After the side edge is sharpened, place the diamond saw blade in the direction of sharpening and string it onto the sharpening machine shaft to sharpen the vertical edge. When sharpening the vertical edge, ensure that the edges on both sides are consistent with the vertical edge direction.

[0012] Step 6. Surface treatment of the saw blade: Grind and polish the surface of the diamond saw blade in step 5, and spray a layer of anti-rust paint on the surface. Use a grinder to grind the weld of the diamond saw blade after sharpening, and then place the diamond saw blade in a polishing grinder for surface treatment to remove burrs and oxidized substances on the surface of the diamond saw blade. Take out the diamond saw blade, place the diamond saw blade on a paint spray rack, and spray a layer of anti-rust paint on the surface.

[0013] Step 7. Packing and warehousing: Label the surface-treated diamond saw blades and pack them for warehousing. Print the information of the processed diamond saw blades on the diamond saw blades. Then use plastic bags and cartons to pack them. Place the same type of diamond saw blades in the same carton and finally put them in the warehouse waiting for sale.

[0014] Preferably, in step one and step two, when preparing the substrate and the cutter head, trace amounts of other elements are added to the main materials, so that the strength and hardness of the substrate and the cutter head are improved. At the same time, the carbon content in the substrate is relatively low, so that the welding performance of the substrate is improved, which facilitates the welding of the cutter head and the substrate in step four. A small amount of vanadium is added to the substrate to improve the thermal stability and rigidity of the substrate. During the preparation of the cutter head, tungsten carbide is used as the skeleton metal, and a small amount of cobalt is added to improve the overall strength and hardness of the cutter head. At the same time, a small amount of copper is added as a bonding phase, so that the combination of diamond particles and tungsten carbide is tighter, extending the service life of the diamond saw blade. At the same time, the particle size of the diamond particles is most suitable at about 50 mesh. Diamond particles of the same size can improve the cutting effect when used. They are first cold pressed and then sintered at high temperature, which shortens the production time of the substrate and the cutter head, thereby improving the production efficiency of the diamond saw blade.

[0015] Preferably, in step three and step four, when positioning is performed, the position of the positioning point can be determined according to the diameter of the substrate, so that the number and distance of the cutter heads can be adjusted, so that the number and distance of the cutter heads can be set in a targeted manner according to the material cut by the diamond saw blade, thereby increasing the service life and cutting efficiency of the diamond saw blade. The identification device is arranged directly above the center position of the clamping device, so that the identification line of the identification device passes through the center of the clamped saw blade substrate, so that the identification device, the positioning point and the center of the saw blade substrate form a vertical line, making the positioning more accurate. The identification device is an infrared recognition device, which can determine the distance between the positioning point and the identification device. When welding, the robot arm and the welding arm can fix the cutter head on the saw blade substrate according to the distance between the positioning point and the identification device. The laser welding has a fast welding speed and a small depth, so that the connection between the substrate and the cutter head is tighter, reducing the possibility of the cutter head detaching from the substrate during use.

[0016] Preferably, in step five, the diamond saw blade after welding is prevented from being put on a sharpening machine for sharpening. The first step is to sharpen the side edge. The diamond saw blade is installed on the sharpening machine so that the diamond saw blade and the grinding wheel rotate together. The rotation speed of the diamond saw blade is 15-20r / min, and the rotation speed of the grinding wheel is 30-35r / min. The speed difference can make the sharpening effect just right and reduce the wear of the saw blade head during sharpening. The position of the grinding wheel and the diamond saw blade is adjusted to gradually approach each other until all the diamonds on one side of the saw teeth are sharpened. Then the diamond saw blade is reversed, and then the other side edge is sharpened in the same way, and all the diamonds are sharpened. After the side edge is sharpened, the diamond saw blade is placed in the sharpening direction and strung on the sharpening machine shaft to sharpen the vertical edge. When sharpening the vertical edge, it is necessary to ensure that the edges on both sides are consistent with the vertical edge direction. Inconsistency will affect the performance of the diamond saw blade.

[0017] Preferably, in step six, the weld is first grinded smooth using a grinding machine, and then the diamond saw blade is placed in a polishing grinder for surface treatment to remove burrs and oxidized substances on the surface of the diamond saw blade. The diamond saw blade is taken out, and the diamond saw blade is placed on a paint spray rack, and a layer of anti-rust paint is sprayed on the surface. By grinding the weld of the diamond saw blade smooth, the aesthetics of the diamond saw blade is improved, and the surface is polished and grinded to remove burrs and oxides on the surface, and a layer of anti-rust paint is sprayed at the same time, so that the shelf life of the diamond saw blade is greatly increased and the waste of resources is reduced.

[0018] Preferably, in step seven, the information of the processed diamond saw blade is printed on the anti-rust paint layer of the diamond saw blade, and then it is packaged in plastic bags and cartons, and the same type of diamond saw blades are placed in the same carton, and finally put into a warehouse waiting for sale. The diamond saw blades are packaged in plastic bags to reduce oxidation caused by contact with the outside air, which affects the service life of the diamond saw blades. At the same time, the same type of diamond saw blades are placed in cartons for centralized storage, which facilitates statistics and transportation.

[0019] The beneficial effect of the present invention is that positioning points are evenly drawn on the circumference of the saw blade base, and then during laser welding, the positioning points are ensured to be located directly above the saw blade base, so that each cutter head is located on the positioning points, thereby ensuring the uniformity of the cutter heads and improving the processing accuracy when using a diamond saw blade for processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a process flow chart of the present invention.

[0021] Figure 2 This is a comparison table of embodiments of the present invention. DETAILED DESCRIPTION

[0022] The present invention will be further described below in conjunction with the accompanying drawings:

[0023] like Figure 1 As shown, this embodiment provides a high-precision diamond saw blade production process, including the following steps:

[0024] Embodiment 1

[0025] Step 1, preparation of the matrix: iron powder, carbon powder, silicon powder, manganese powder, and vanadium powder are fully mixed in a certain proportion, and then the mixed powder is placed in a matrix mold for sintering. When mixing, the proportions of each component are: 0.5% carbon powder, 0.25% silicon powder, 1.6% manganese powder, 0.1% vanadium powder, and the remaining components are iron powder and impurities. The above powders are placed in a stirring mixer in proportion for full mixing, and then the mixed powder is placed in a matrix mold for cold pressing. The cold pressing pressure is controlled between 2.75-3.25T / cm2 so that the powder is pressed into a matrix model, and then the matrix model is placed in a sintering furnace for high-temperature sintering. The sintering temperature is controlled between 950-1050℃, and the sintering time is 5-6 hours. After sintering is completed, nitrogen and hydrogen mixed gas is introduced for cooling. The matrix prepared according to the above formula has high strength, high toughness, and high weldability. This matrix is ​​not easy to break during use, and the welded tool head is firmly connected.

[0026] Embodiment 2

[0027] Step 1, preparation of the matrix: iron powder, carbon powder, silicon powder, manganese powder, and vanadium powder are fully mixed in a certain proportion, and then the mixed powder is placed in a matrix mold for sintering. When mixing, the proportion of each component is: carbon powder 0.2%, silicon powder 0.25%, manganese powder 1.6%, vanadium powder 0.1%, and the remaining components are iron powder and impurities. The above powders are placed in a stirring mixer in proportion for full mixing, and then the mixed powder is placed in a matrix mold for cold pressing. The cold pressing pressure is controlled between 2.75-3.25T / cm2 so that the powder is pressed into a matrix model, and then the matrix model is placed in a sintering furnace for high-temperature sintering. The sintering temperature is controlled between 950-1050℃, and the sintering time is 5-6 hours. After sintering, nitrogen and hydrogen mixed gas is passed in for cooling.

[0028] Embodiment 3

[0029] Step 1, preparation of the matrix: iron powder, carbon powder, silicon powder, manganese powder, and vanadium powder are fully mixed in a certain proportion, and then the mixed powder is placed in a matrix mold for sintering. When mixing, the proportion of each component is: carbon powder 0.8%, silicon powder 0.25%, manganese powder 1.6%, vanadium powder 0.1%, and the remaining components are iron powder and impurities. The above powders are placed in a stirring mixer in proportion for full mixing, and then the mixed powder is placed in a matrix mold for cold pressing. The cold pressing pressure is controlled between 2.75-3.25T / cm2 so that the powder is pressed into a matrix model, and then the matrix model is placed in a sintering furnace for high-temperature sintering. The sintering temperature is controlled between 950-1050℃, and the sintering time is 5-6 hours. After sintering, nitrogen and hydrogen mixed gas is passed in for cooling.

[0030] Step 2, preparation of the tool head: diamond particles, tungsten carbide powder, cobalt powder, and copper powder are fully mixed in a certain proportion, and then the mixed powder is placed in a tool head mold for sintering. During mixing, the weight ratio of each component is: 10-20 parts of diamond particles, 30-40 parts of tungsten carbide powder, 5-10 parts of cobalt powder, and 2-5 parts of copper powder. Then the mixed powder is quietly placed in the tool head mold for cold pressing. The cold pressing pressure is 4.25-4.75T / cm2, so that the powder is pressed into a tool head model. The tool head model is placed in a sintering furnace for high-temperature sintering. The sintering temperature is controlled between 800-850°C, and the sintering time is 2-2.5 hours. After sintering is completed, nitrogen and hydrogen mixed gas is passed for cooling, compared with Example 1.

[0031] Step 3. Position the welding position of the cutter head: evenly position the circumference of the saw blade base sintered in step 1, place the saw blade base formed in step 1 on a positioning machine, and evenly draw positioning points on the circumference of the saw blade base by setting the distance between the positioning points. Set the distance between the positioning points according to the diameter of the saw blade base.

[0032] Step 4, welding the cutter head: laser weld the saw blade cutter head sintered in step 2 to the positioning point of the saw blade base in step 3. When welding, place the saw blade base after the positioning point is drawn vertically on the laser welding machine, clamp the center point of the saw blade base and rotate it to fix it. The positioning point is identified by the identification device directly above the saw blade base. When the positioning point moves to directly below the identification device, the identification device identifies it and fixes the saw blade base at the same time, so that a positioning point is located directly above the saw blade base. Then, the cutter head is placed on the positioning point by the mechanical arm, and the cutter head is welded to the positioning point of the saw blade base by the welding arm. Then, the saw blade base is rotated so that the next positioning point is located directly above the saw blade base. Repeat the operation until the welding of all cutter heads of a saw blade base is completed.

[0033] Step 5, sharpening: Place the diamond saw blade in step 4 on the sharpening machine to sharpen its agglomerates. The first step is to sharpen the side edge. Install the diamond saw blade on the sharpening machine and make the diamond saw blade rotate with the grinding wheel. Adjust the position of the grinding wheel and the diamond saw blade so that they gradually approach each other until all the diamonds on one side of the saw teeth are sharpened. Then reverse the diamond saw blade and use the same method to sharpen the other side edge and make all the diamonds sharpened. After the side edge is sharpened, place the diamond saw blade in the direction of sharpening and string it onto the sharpening machine shaft to sharpen the vertical edge. When sharpening the vertical edge, ensure that the edges on both sides are consistent with the vertical edge direction.

[0034] Step 6. Surface treatment of the saw blade: Grind and polish the surface of the diamond saw blade in step 5, and spray a layer of anti-rust paint on the surface. Use a grinder to grind the weld of the diamond saw blade after sharpening, and then place the diamond saw blade in a polishing grinder for surface treatment to remove burrs and oxidized substances on the surface of the diamond saw blade. Take out the diamond saw blade, place the diamond saw blade on a paint spray rack, and spray a layer of anti-rust paint on the surface.

[0035] Step 7. Packing and warehousing: Label the surface-treated diamond saw blades and pack them for warehousing. Print the information of the processed diamond saw blades on the diamond saw blades. Then use plastic bags and cartons to pack them. Place the same type of diamond saw blades in the same carton and finally put them in the warehouse waiting for sale.

[0036] When preparing the matrix and the tool head, first, the diamond particles, tungsten carbide powder, cobalt powder, and copper powder are fully mixed in a certain proportion, and the mixed powder is placed in a matrix mold for cold pressing, so that the powder is pressed into a matrix model, and then the matrix model is placed in a sintering furnace for high-temperature sintering. The sintering temperature is controlled between 950-1050°C, and the sintering time is 5-6 hours. At the same time, the diamond particles, tungsten carbide powder, cobalt powder, and copper powder are fully mixed in a certain proportion, and then the mixed powder is placed in a tool head mold for cold pressing, so that the powder is pressed into a tool head model, and the tool head model is placed in a sintering furnace for high-temperature sintering. The sintering temperature is controlled between 950-1050°C, and the sintering time is 5-6 hours. After the sintering of the matrix and the tool head is completed, nitrogen and hydrogen mixed gas is introduced for cooling.

[0037] When welding the cutter head, place the saw blade base formed in step one on the positioning machine, draw positioning points evenly on the circumference of the saw blade base by setting the distance between the positioning points, set the distance of the positioning points according to the diameter of the saw blade base and the place of use, place the saw blade base vertically on the laser welding machine after the positioning points are drawn, clamp the center point of the saw blade base and rotate it to fix it, identify the positioning point through the identification device directly above the saw blade base, when the positioning point moves to directly below the identification device, the identification device identifies it and fixes the saw blade base at the same time, so that a positioning point is located directly above the saw blade base, and then the cutter head is placed on the positioning point by the mechanical arm, and the cutter head is welded to the positioning point of the saw blade base by the welding arm, and then the saw blade base is rotated so that the next positioning point is located directly above the saw blade base, and the operation is repeated until the welding of all the cutter heads of a saw blade base is completed.

[0038] When sharpening the blade, place the diamond saw blade in step 4 on the sharpening machine to sharpen its agglomerates. The first step is to sharpen the side edge. Install the diamond saw blade on the sharpening machine and make the diamond saw blade rotate with the grinding wheel. Adjust the position of the grinding wheel and the diamond saw blade so that they gradually approach each other until all the diamonds on one side of the saw teeth are sharpened. Then reverse the diamond saw blade and use the same method to sharpen the other side edge and make all the diamonds sharpened. After the side edge is sharpened, place the diamond saw blade in the sharpening direction and string it onto the sharpening machine shaft to sharpen the vertical edge.

[0039] During surface treatment and packaging, the surface of the diamond saw blade in step five is ground and polished, and a layer of anti-rust paint is sprayed on the surface. The weld of the diamond saw blade after sharpening is polished and smoothed with a grinder. Then the diamond saw blade is placed in a polishing grinder for surface treatment to remove burrs and oxidized substances on the surface of the diamond saw blade. The diamond saw blade is taken out and placed on a spray paint rack. A layer of anti-rust paint is sprayed on the surface. Then the information of the processed diamond saw blade is printed on the anti-rust paint of the diamond saw blade. Then, it is packaged in plastic bags and cartons, and the same type of diamond saw blades are placed in the same carton. Finally, it is put into a warehouse waiting for sale.

[0040] The performance tests were conducted on the substrates prepared in proportion to the above-mentioned examples 1, 2 and 3. One substrate was taken from each example to test its strength, toughness and weldability. The results are as follows: Figure 2 As shown, through Figure 2 It can be seen that adding different amounts of carbon powder will have an impact on the performance of the substrate. Compared with Example 1, Example 2 reduces the amount of carbon powder added, and the strength and weldability of the prepared substrate decrease, but the toughness increases. When used, the cutter head of this substrate is easy to fall off compared to the substrate in Example 1, and the wear is more serious, and the service life is reduced. Compared with Example 1, Example 3 increases the amount of carbon powder added, and the strength and weldability of the prepared substrate are improved, but the toughness decreases. When used, this substrate is easy to break compared to the substrate in Example 1. Therefore, the performance of the substrate prepared by the carbon powder content in Example 1 is most suitable.

[0041] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for illustrating the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which shall fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. High-precision diamond saw blade production process, characterized by: The following steps are involved: Step 1: Preparation of the matrix: fully mix iron powder, carbon powder, silicon powder, manganese powder and vanadium powder in a certain proportion, and then place the mixed powder into a matrix mold for sintering; the mixed ingredients of carbon powder, silicon powder, manganese powder and vanadium powder are as follows: 0.5% carbon powder, 0.25% silicon powder, 1.6% manganese powder, 0.1% vanadium powder, and the remaining ingredients are iron powder and impurities. After the above powders are fully stirred and mixed in proportion, the mixed powder is placed in a matrix mold for cold pressing, and the cold pressing pressure is controlled at 2.75-3.25T / cm 2 The powder is cold pressed into a saw blade matrix, and the saw blade matrix is ​​placed in a sintering furnace for high-temperature sintering. The sintering temperature is controlled between 950-1050°C and the sintering time is 5-6 hours. After the sintering is completed, a nitrogen-hydrogen mixed gas is introduced for cooling; Step 2: Preparation of the cutter head: diamond particles, tungsten carbide powder, cobalt powder and copper powder are fully mixed in a certain proportion, and then the mixed powder is placed in a cutter head mold for sintering; Step 3, positioning the welding position of the cutter head: uniformly positioning the circumference of the saw blade substrate sintered in step 1; placing the saw blade substrate formed in step 1 on a positioning machine, and evenly drawing positioning points on the circumference of the saw blade substrate by setting the distance between the positioning points, and setting the distance between the positioning points according to the diameter of the saw blade substrate; Step 4, welding the cutter head: laser weld the saw blade cutter head sintered in step 2 to the positioning point of the saw blade base in step 3; after positioning, the saw blade base is placed vertically on the laser welding machine, and the center point of the saw blade base is clamped and rotated to fix it, and the positioning point is identified by the identification device directly above the saw blade base. When the positioning point moves to directly below the identification device, the identification device identifies it and fixes the saw blade base at the same time, so that a positioning point is located directly above the saw blade base, and then the cutter head is placed on the positioning point by the mechanical arm, and the cutter head is welded to the positioning point of the saw blade base by the welding arm, and then the saw blade base is rotated so that the next positioning point is located directly above the saw blade base, and the operation is repeated until the welding of all the cutter heads of a saw blade base is completed; Step 5: Sharpening: Place the diamond saw blade in step 4 on a sharpening machine to sharpen it; Step 6: Surface treatment of the saw blade: Grind and polish the surface of the diamond saw blade in step 5, and spray a layer of anti-rust paint on the surface; Step 7: Packing and warehousing: Label the diamond saw blades in step 6 and pack them for warehousing.

2. The high-precision diamond saw blade production process according to claim 1, characterized in that: In the step 2, the diamond particles, tungsten carbide powder and copper powder are mixed in proportion by weight: 10-20 parts of diamond particles, 30-40 parts of tungsten carbide powder, 5-10 parts of cobalt powder and 2-5 parts of copper powder. The above powders are evenly mixed in proportion, and then the mixed powder is placed in a cutter head mold for cold pressing. The cold pressing pressure is 4.25-4.75T / cm2. The saw blade head after cold pressing is placed in a sintering furnace for high-temperature sintering to obtain a saw blade head. The sintering temperature is 800-850℃ and the sintering time is 2-2.5 hours. After sintering, a nitrogen-hydrogen mixed gas is introduced for cooling.

3. The high-precision diamond saw blade production process according to claim 1, characterized in that: In step five, the welded diamond saw blade is placed on a sharpening machine for sharpening. The first step is to sharpen the side edge. Install the diamond saw blade on the sharpening machine, make the diamond saw blade rotate with the grinding wheel, adjust the position of the grinding wheel and the diamond saw blade, and gradually approach them until all the diamonds on one side of the saw teeth are sharpened. Then reverse the diamond saw blade, and then use the same method to sharpen the other side edge, and make all the diamonds sharpened. After the side edge is sharpened, place the diamond saw blade in the direction of sharpening and string it onto the sharpening machine shaft to sharpen the vertical edge. When sharpening the vertical edge, ensure that the edges on both sides are consistent with the vertical edge direction.

4. The high-precision diamond saw blade production process according to claim 1, characterized in that: In step six, first use a grinder to grind the weld flat, then place the diamond saw blade in a polishing grinder for surface treatment to remove burrs and oxidized substances on the surface of the diamond saw blade, take out the diamond saw blade, place the diamond saw blade on a spray paint rack, and spray a layer of anti-rust paint on the surface.

5. The high-precision diamond saw blade production process according to claim 1, characterized in that: In step seven, the information of the finished diamond saw blade is printed on the anti-rust paint layer of the diamond saw blade, and then it is packaged in plastic bags and cartons, and the same type of diamond saw blades are placed in the same carton, and finally put into the warehouse waiting for sale.

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