Diamond circular saw blade

Abstract

The diamond circular saw blade is characterized in that a saw blade main body is provided with a mounting hole and saw teeth, and tool bits are mounted on the saw teeth; the tool bit is flat, the size of the tool bit is reduced, and the utilization rate of the side face of the tool bit is increased; the main cutting faces of any two adjacent tool bits incline towards different sides, the tool bits can form tool noses facing one side, the tool noses on the different sides of the tool bits are beneficial to rapidly smashing materials, and the sharpness of the saw blade is improved. And the service life of the saw blade can be prolonged by matching the matrix powder and the active powder of the tool bit.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of saw blade, in particular to a diamond circular saw blade. BACKGROUND

[0002] In order to improve the cutting performance of the saw blade, alloy tool bit is welded on the saw tooth, the tool bit welded on the ordinary saw blade is also ordinary, and the cutting performance is also ordinary. In order to improve the cutting performance of the saw blade, a scheme is needed to solve such problems. SUMMARY

[0003] Therefore, the technical problem to be solved by the present application is to provide a diamond circular saw blade, which solves the problem of general cutting performance of the saw blade in the prior art.

[0004] In order to solve the above technical problems, the present application discloses a diamond circular saw blade, the saw blade body is provided with a mounting hole and a saw tooth, and a tool bit is mounted on the saw tooth; the tool bit is flat, the main cutting surface of the tool bit is inclined to one side, and the auxiliary cutting surface of the tool bit is inclined to one end; the main cutting surface and the two auxiliary cutting surfaces of the tool bit are all inclined to the back surface of the tool bit; the main cutting surfaces of any two adjacent tool bits are inclined to different sides.

[0005] Further, the inclination angle of the main cutting surface is 3°.

[0006] Further, the auxiliary cutting surface is inclined from the top to the bottom of the tool bit, and the inclination angle is 3°.

[0007] Further, the tool bit is made of uniformly mixed raw material powder, cold-pressed and sintered; the composition of the raw material used in the tool bit is: copper 16-28 parts, iron 35-45 parts, nickel 5-18 parts, cobalt 2-10 parts, tin 4-10 parts, manganese 3-8 parts, rare earth 3-12 parts, WC powder 5-10 parts and active powder 10-15 parts.

[0008] Further, the composition of the raw material used in the tool bit is: copper 20-26 parts, iron 37-42 parts, nickel 7-16 parts, cobalt 3-8 parts, tin 4-9 parts, manganese 3-5 parts, rare earth 4-10 parts, WC powder 6-8 parts and active powder 12-15 parts.

[0009] Further, the active powder has chromium-zirconium bronze powder and copper-iron pre-alloy powder, and the composition of the two is: chromium-zirconium bronze powder 20-100 parts, and copper-iron pre-alloy powder 20-50 parts.

[0010] Further, the particle size of the rare earth, WC powder and active powder is 100-200 mesh.

[0011] Compared with the prior art, the present application can obtain the following technical effects: The cutter head of the present invention is flat, which reduces the volume of the cutter head and improves the utilization rate of the side surface of the cutter head; the main cutting surfaces of any two adjacent cutter heads are inclined to different sides, and the cutter heads can form cutting tips facing one side. The cutting tips on different sides of the cutter heads are conducive to quickly breaking materials and improving the sharpness of the saw blade; the main cutting surface and two secondary cutting surfaces of the cutter head are all inclined to the back of the cutter head, which is conducive to improving the sharpness of the main cutting edge and the secondary cutting edge.

[0012] Of course, any product implementing this application does not necessarily need to achieve all of the technical effects described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings: Figure 1 is a partial schematic diagram of a diamond circular saw blade according to an embodiment of the present invention; Figure 2 Schematic diagram of a cutter head according to an embodiment of the present invention. Figure ID

[0014] Saw blade body 1, saw teeth 2, cutter head 3, main cutting surface 4, secondary cutting surface 5, back surface 6. DETAILED DESCRIPTION

[0015] The following will describe the implementation methods of the present application in detail with reference to the accompanying drawings and examples, so that the implementation process of how the present application applies technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0016] Please refer to Figure 1 、 Figure 2 , Figure 1 is a partial schematic diagram of a diamond circular saw blade according to an embodiment of the present invention; Figure 2 The figure is a schematic diagram of a cutter head according to an embodiment of the present invention. A diamond circular saw blade is provided with a saw blade body 1 having mounting holes and saw teeth 2, on which a cutter head 3 is mounted. The cutter head 3 is flat, with a primary cutting surface 4 of the cutter head 3 tilted toward one side and secondary cutting surfaces 5 of the cutter head 3 tilted toward the other side. The primary cutting surface 4 and two secondary cutting surfaces 5 of the cutter head 3 are tilted toward the back surface 6 of the cutter head 3. The primary cutting surfaces 4 of any two adjacent cutter heads 3 tilt toward different sides.

[0017] The main cutting surface 4 has an inclination angle of 3°; the auxiliary cutting surface 5 is inclined from the top to the bottom of the cutter head 3, with an inclination angle of 3°.

[0018] A method for preparing a diamond circular saw blade, characterized in that it comprises the following steps: Example 1

[0019] A. Weigh 50 parts of chromium-zirconium bronze and 50 parts of copper-iron pre-alloyed powder by mass, put them into a mixer and mix them evenly to obtain active powder, which is set aside. B. Weigh 20 parts of copper, 37 parts of iron, 7 parts of nickel, 3 parts of cobalt, 4 parts of tin, 3 parts of manganese, 4 parts of rare earth, and 6 parts of WC powder by mass, add the mixed powders into a mixer and mix evenly to obtain a matrix powder, which is set aside; C. Measure diamond and the matrix powder obtained in step B at a volume ratio of 7:3, put them into a mixer and mix them evenly to obtain blade powder, set aside; D. The blade powder obtained in step C was loaded into a graphite mold, and then placed in a muffle furnace for hot pressing and sintering at a sintering temperature of 820°C, a sintering pressure of 40 MPa, and a sintering time of 210 s. The above steps were repeated to obtain multiple blades. E. Install the cutter head prepared in step D on the base to complete the saw blade preparation. Example 2

[0020] A. Weigh 75 parts of chromium-zirconium bronze and 25 parts of copper-iron pre-alloyed powder by mass, put them into a mixer and mix them evenly to obtain active powder, which is set aside. B. Weigh 22 parts of copper, 38 parts of iron, 11 parts of nickel, 5 parts of cobalt, 5 parts of tin, 4 parts of manganese, 8 parts of rare earth, and 7 parts of WC powder by mass, add the mixed powders together in a mixer and mix evenly to obtain a matrix powder, which is set aside; C. Measure diamond and the matrix powder obtained in step B at a volume ratio of 7:3, put them into a mixer and mix them evenly to obtain blade powder, set aside; D. The blade powder obtained in step C was loaded into a graphite mold, and then placed in a muffle furnace for hot pressing and sintering at a sintering temperature of 820°C, a sintering pressure of 40 MPa, and a sintering time of 210 s. The above steps were repeated to obtain multiple blades. E. Install the cutter head prepared in step D on the base to complete the saw blade preparation. Example 3

[0021] A. Weigh 85 parts of chromium-zirconium bronze and 15 parts of copper-iron pre-alloyed powder by mass, put them into a mixer and mix them evenly to obtain active powder, which is set aside. B. Weigh 26 parts of copper, 42 parts of iron, 16 parts of nickel, 8 parts of cobalt, 9 parts of tin, 5 parts of manganese, 10 parts of rare earth, and 8 parts of WC powder by mass, add the mixed powders together in a mixer and mix evenly to obtain a matrix powder, which is set aside; C. Measure diamond and the matrix powder obtained in step B at a volume ratio of 7:3, put them into a mixer and mix them evenly to obtain blade powder, set aside; D, the cutter head powder obtained in step C is loaded into a graphite mold, and then placed in a muffle furnace for hot-press sintering, the sintering temperature is 820 DEG C, the sintering pressure is 40 MPa, and the sintering time is 210 s, and the above steps are repeated to obtain a plurality of cutter heads; E, the cutter head prepared in step D is installed on the base body to prepare a saw blade.

[0022] Performance data of different saw blades

[0023] The influence of active powder on the hardness and service life of the cutter head is not significant in the proportion of the active powder, but the influence on the service life of the cutter head is more significant, and the balanced proportion of the active powder (chromium-zirconium bronze and copper-iron pre-alloy powder) is beneficial to change the connection between the matrix and the diamond particles from mechanical connection to metallurgical bonding, improve the holding force of the matrix to the diamond, and thus improve the service life of the saw blade.

[0024] The cutter head 3 of the application is flat, which reduces the volume of the cutter head 3 and improves the utilization rate of the side of the cutter head 3; the main cutting surfaces 4 of any two adjacent cutter heads 3 are inclined to different sides, the cutter head 3 can form a cutter tip to one side, and the cutter tips of different sides of the cutter head 3 are beneficial to quickly break the material and improve the sharpness of the saw blade; the main cutting surface 4 and the two auxiliary cutting surfaces 5 of the cutter head 3 are inclined to the back surface 6 of the cutter head 3, which is beneficial to improve the sharpness of the main cutting edge and the auxiliary cutting edge.

[0025] The above description shows and describes several preferred embodiments of the application, but as mentioned above, it should be understood that the application is not limited to the forms disclosed herein, should not be considered as excluding other embodiments, and can be used in various other combinations, modifications and environments, and can be modified within the scope of the application concept described herein, by the above teaching or related art or knowledge. The modifications and changes made by those skilled in the art without departing from the spirit and scope of the application shall be within the protection scope of the appended claims of the application.

Claims

1. A diamond circular saw blade, wherein the saw blade body is provided with a mounting hole and saw teeth, and a cutter head is mounted on the saw teeth; The cutter head is flat, the main cutting surface of the cutter head is inclined to one side, and the secondary cutting surface of the cutter head is inclined to one end; the main cutting surface and two secondary cutting surfaces of the cutter head are inclined toward the back of the cutter head; the main cutting surfaces of any two adjacent cutter heads are inclined to different sides.

2. The diamond circular saw blade according to claim 1, wherein The inclination angle of the main cutting surface is 3°.

3. The diamond circular saw blade according to claim 1, wherein: The secondary cutting surface is inclined from the top to the bottom of the cutter head, with an inclination angle of 3°.

4. The diamond circular saw blade according to claim 1, wherein: The cutter head is made by uniformly mixing raw material powders, cold pressing and hot pressing and sintering; the raw materials used in the cutter head are composed of 16 to 28 parts of copper, 35 to 45 parts of iron, 5 to 18 parts of nickel, 2 to 10 parts of cobalt, 4 to 10 parts of tin, 3 to 8 parts of manganese, 3 to 12 parts of rare earth, 5 to 10 parts of WC powder and 10 to 15 parts of active powder in parts by weight.

5. The diamond circular saw blade according to claim 4, wherein: The raw materials used for the cutter head are composed of 20-26 parts of copper, 37-42 parts of iron, 7-16 parts of nickel, 3-8 parts of cobalt, 4-9 parts of tin, 3-5 parts of manganese, 4-10 parts of rare earth, 6-8 parts of WC powder and 12-15 parts of active powder.

6. The diamond circular saw blade according to claim 4, wherein: The active powder comprises chromium-zirconium bronze powder and copper-iron pre-alloyed powder, and the composition of the two is: 20-100 parts of chromium-zirconium bronze powder and 20-50 parts of copper-iron pre-alloyed powder.

7. The diamond circular saw blade according to claim 5, wherein: The particle size of the rare earth, WC powder and active powder is 100-200 meshes.

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