Brazing diamond circular saw blade for cutting rock plate

Abstract

The utility model discloses a brazed diamond circular saw blade for cutting rock plates, which comprises a circular base body, a mounting hole is arranged in the middle of the circular base body, an annular saw cutting part is arranged on the circumferential edge of the circular base body, and the saw cutting part comprises a brazed diamond working layer brazed on the circular base body. A working layer of the sawing part covers the circumferential edge portions of the front face and the back face of the round base body and the side face connected with the two faces, a plurality of inclined chip grooves are formed in the positions, on the circumference of the sawing part, of the round base body, the sawing part is divided into a plurality of sawteeth through the chip grooves, and a plurality of sets of air holes with the same number as the sawteeth are formed in the round base body. Each group of air holes comprises 3-4 air holes, and the outermost air holes in each group of air holes are located in the sawteeth. The diamond brazing cutter is specially designed according to the characteristics of a rock plate, the diamond is metallurgically bonded through brazing, the holding force on the diamond is high, cuttings can be rapidly thrown out and dissipated when the rock plate is cut through the specially-designed chip grooves and the specially-designed air holes, and the cutting precision on the rock plate is high.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of diamond saw blades, in particular to a brazed diamond circular saw blade for cutting rock plates. BACKGROUND

[0002] Rock plate is the abbreviation of ceramic rock plate, and the English description is SINTERED STONE (Ceramic S lab), which means "sintered stone". It is a new type of ceramic material that can withstand cutting, drilling, grinding and other processing processes, and is made of natural raw materials through special process, with the help of a press of more than 10,000 tons (more than 150,000 tons), combined with advanced production technology, and fired at a temperature of more than 1,200 DEG C. The hardness of rock plate is higher than that of granite and other igneous rocks.

[0003] The cutting quality of rock plate is higher than that of ordinary ceramic plate. Due to the high hardness of rock plate, the current sintered saw blade for cutting rock plate, such as the diamond saw blade for cutting rock plate disclosed in the Chinese patent with the application number CN202111567983.3, is composed of a blade head and a base body. The blade head includes the following weight percentage of raw materials: copper powder 20-40 parts, tin powder 10-25 parts, iron powder 10-30 parts, ultra-fine cobalt powder 5-20 parts, nickel powder 5-15 parts, zinc powder 10-15 parts, and graphite 1-3 parts. The volume fraction of diamond is 10-30%, and the diamond particle size is 120-180um. The specific manufacturing method includes batching, mixing, cold pressing, hot pressing, and subsequent processing. This saw blade is made of powder metallurgy method. The holding force of diamond is mainly determined by the mechanical strength of the metal matrix. When cutting hard and brittle materials such as rock plate in dry cutting, the cutting efficiency is low due to the low cutting height of diamond, the saw blade is easy to deform due to heating, the cutting effect is reduced, the high temperature also aggravates the interaction between the saw blade and the rock plate, causing the diamond to wear seriously in a short time, reducing its service life, and the high temperature also affects the stable rotation of the saw blade, reducing the cutting efficiency and increasing the overall energy consumption. In addition, the cutting quality is also reduced. CONTENT OF THE UTILITY MODEL

[0004] Therefore, the application provides a brazed diamond circular saw blade for cutting rock plates, which is specially designed for the characteristics of rock plates. The brazing realizes metallurgical bonding of diamond, and the holding force of diamond is high. The specially designed chip removal groove and air hole can quickly throw out and cool the cutting chips when cutting rock plates in dry cutting, and the cutting precision of rock plates is high.

[0005] According to an aspect of the present application, a brazed diamond circular saw blade for cutting rock plate is provided in an embodiment, comprising a circular base body having a mounting hole in the middle, and a circular sawing part at the circumferential edge of the circular base body, wherein the sawing part comprises a brazed diamond working layer brazed on the circular base body, the thickness of the working layer of the sawing part is 0.3-0.5mm, the working layer of the sawing part covers the circumferential edge part of the front and back surfaces of the circular base body and the side surface connecting the two surfaces, and a plurality of inclined chip removal grooves are arranged on the circular base body in a circumferential direction, the chip removal grooves divide the sawing part into a plurality of saw teeth, and a plurality of groups of air holes are arranged on the circular base body and are equal in number to the saw teeth, each group of air holes has 3-4 air holes, and the outermost air hole in each group of air holes is located in a saw tooth.

[0006] Further, the circular base body is a metal base body, and the thickness is 0.8-1.2mm.

[0007] Further, the width of the circular sawing part is 10-20mm.

[0008] Further, the particle size of the diamond in the circular sawing part is 0.1-0.5mm.

[0009] Further, the angle of the inclined chip removal groove is 30-45°, the width of the chip removal groove is 2-3mm, and the depth is 8-12mm.

[0010] Further, each group of air holes is located on an arc line passing through the center of the circular base body and the center of the outer circle of the saw tooth, the diameter is 85-95mm, and the arc distance between the air holes in each group of air holes is equal.

[0011] Further, each group of air holes is a circular air hole, and the diameters of the air holes in each group of air holes are the same or gradually increase from inside to outside.

[0012] The beneficial effects of the present application are as follows:

[0013] 1. The brazed diamond circular saw blade for cutting rock plate is made of diamond brazing process, and the principle of the brazed saw blade is that the high-temperature filler metal realizes metallurgical combination with the diamond under vacuum, and the holding force of the diamond is high.

[0014] 2. The brazed diamond circular saw blade for cutting rock plate has high blade height and high cutting efficiency when cutting rock plate.

[0015] 3. The brazed diamond circular saw blade for cutting rock plate, the specially designed chip removal groove and air hole can quickly throw out and cool the cutting chips during the cutting process of the rock plate.

[0016] 4, The utility model discloses a brazed diamond circular saw blade for cutting rock plate, and good heat dissipation guarantees the rigidity of the saw blade, the rock plate is not deflected during cutting, the processing precision of the rock plate is high, and cutting is smooth. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the structure schematic view of the utility model embodiment one;

[0018] Figure 2 It is the sectional view of the utility model embodiment one;

[0019] Figure 3 It is Figure 2 It is the enlarged view of partial B;

[0020] Figure 4 It is the structure schematic view of the utility model embodiment two.

[0021] In the drawing: 1, circular base body;2, mounting hole;3, sawing part;4, chip removal groove;5, saw tooth;6, diamond;7, brazing metal layer;8, air hole;9, arc line. DETAILED DESCRIPTION

[0022] The application will be described in further detail below with specific embodiments in conjunction with the drawings. Similar elements in different embodiments are denoted by similar reference numerals. In the following embodiments, many details are described in order to make the application better understood. However, a person skilled in the art can easily recognize that some features can be omitted in different cases, or can be replaced by other elements, materials, methods. In some cases, some operations related to the application are not shown or described in the specification in order to avoid the core part of the application being overwhelmed by too much description, and it is not necessary to describe these related operations in detail for a person skilled in the art according to the description in the specification and general technical knowledge in the art.

[0023] In addition, the features, operations or characteristics described in the specification can be combined in any appropriate way to form various embodiments, and the operation steps involved in each embodiment can also be sequentially adjusted or adjusted in a manner that is obvious to a person skilled in the art. Therefore, the specification and drawings are only for the purpose of clearly describing one embodiment, and do not mean that the composition and / or order are necessary.

[0024] In this paper, the serial number of the component itself, such as "first", "second", etc., is only used to distinguish the described object, and has no any order or technical meaning. Unless otherwise specified, the "connection" and "coupling" in the application include direct and indirect connection (coupling).

[0025] Embodiment one:

[0026] The utility model discloses a brazed diamond circular saw blade for cutting rock plate, and the specification includes the finished product diameter of φ105mm, φ110mm, φ115mm circular saw blade.

[0027] In the embodiment, the φ110mm circular saw blade is taken as an example.

[0028] Please refer to Figure 1 , Figure 2 and Figure 3 , according to an aspect of the application, a brazed diamond circular saw blade for cutting rock plate is provided in an embodiment, including circular base body 1, made of 45# steel plate, the thickness is 1.2mm, the diameter is 109mm, the circular base body 1 has installation hole 2 in the middle, the diameter of installation hole 2 is 25.4mm, the circumferential edge of the circular base body 1 has annular sawing part 3, and the ring width of annular sawing part 3 is 20mm, the sawing part 3 includes brazed diamond working layer in the circular base body 1, the thickness of the working layer of the sawing part 3 is 0.4mm, the working layer is composed of brazing metal layer 7 wrapping diamond 6, the granularity of diamond 6 is 45 / 50 mesh, that is, the particle size is 0.30-0.35mm, the working layer of the sawing part 3 covers the circumferential edge part of the front and back two surfaces of the circular base body 1 and the side surface connecting the two surfaces, the circular base body 1 is provided with nine inclined chip removal grooves 4 distributed in the circumferences on the sawing part 3, the angle of the inclined chip removal groove 4 is 35 °, the width of the chip removal groove 4 is 3mm, and the depth is 12mm, the chip removal groove 4 divides the sawing part 3 into nine saw teeth 5, the circular base body 1 is provided with nine groups of air holes 8 same as the number of saw teeth 5, each group of air holes 8 includes 3 air holes 8, the outermost air hole 8 in each group of air holes 8 is located in the saw tooth 5, the group air hole 8 is located on the arc 9 with the diameter of 90mm passing through the center of the circular base body 1 and the center of the outer circle of the saw tooth 5, the air hole distance of each group of air holes 8 is equal, each group of air holes 8 is circular air hole, and the diameter of each group of air holes 8 is same, and each is 4mm.

[0029] Embodiment two:

[0030] Please refer to Figure 4According to an aspect of the present application, a brazed diamond circular saw blade for cutting rock plate is provided in an embodiment, which comprises a circular base 1 made of 60Mn steel plate with a thickness of 1.0 mm and a diameter of 114 mm, the circular base 1 has a mounting hole 2 in the middle, the diameter of the mounting hole 2 is 25.4 mm, the circular base 1 has a ring-shaped sawing part 3 at the circumferential edge, the ring width of the ring-shaped sawing part 3 is 20 mm, the sawing part 3 comprises a brazed diamond working layer brazed on the circular base 1, the thickness of the working layer of the sawing part 3 is 0.4 mm, the working layer is composed of a brazed metal layer 7 wrapping a diamond 6, the particle size of the diamond 6 is 40 / 45 mesh, that is, the particle size is 0.35-0.40 mm, the working layer of the sawing part 3 covers the circumferential edge part of the front and back surfaces of the circular base 1 and the side surface connecting the two surfaces, the circular base 1 is provided with nine inclined chip removal grooves 4 circumferentially distributed on the sawing part 3, the angle of the inclined chip removal groove 4 is 35°, the width of the chip removal groove 4 is 3 mm, and the depth is 12 mm, the chip removal groove 4 divides the sawing part 3 into nine saw teeth 5, the circular base 1 is provided with nine groups of air holes 8 which are the same as the number of saw teeth 5, each group of air holes 8 comprises three air holes 8, the outermost air hole 8 in each group of air holes 8 is located in the saw tooth 5, the group of air holes 8 is located on an arc 9 with a diameter of 90 mm passing through the center of the circular base 1 and the center of the outer circle of the saw tooth 5, the arc distance between the air holes in each group of air holes 8 is equal, each group of air holes 8 is a water drop-shaped air hole, and the size of each group of air holes 8 is the same.

[0031] The brazed diamond circular saw blade for cutting rock plate of the present application is used, installed on a handheld cutting machine or an angle grinder, and used for dry cutting of rock plate, that is, water is not needed in the cutting process, and the cutting is cooled by the chip removal groove and the air hole on the saw blade.

[0032] In the cutting comparison experiment of the rock plate with a thickness of 6 mm, the service life of the brazed diamond circular saw blade for cutting rock plate of the present application is 3-4 times that of the conventional sintered saw blade; the temperature of the brazed diamond circular saw blade for cutting rock plate of the present application is not more than 230℃ in the cutting process, and the temperature of the conventional sintered saw blade can reach 500℃, which is much lower than that of the conventional sintered saw blade, and the low temperature in the cutting process can effectively prolong the service life of the saw blade.

[0033] The above describes the present application by using specific examples, which is only used for helping understanding the present application and does not limit the present application. According to the idea of the present application, skilled persons in the technical field to which the present application belongs can make some simple deductions, deformation or replacement.

Claims

1. A brazed diamond circular saw blade for cutting stone slabs, characterized in that: The application relates to a circular saw blade, which comprises a circular base (1) with a mounting hole (2) in the middle, and a circular saw cutting part (3) on the circumferential edge of the circular base (1), wherein the saw cutting part (3) comprises a brazed diamond working layer on the circular base (1), the thickness of the working layer of the saw cutting part (3) is 0.3-0.5 mm, the working layer of the saw cutting part (3) covers the circumferential edge part of the front and back surfaces of the circular base (1) and the side surface connecting the two surfaces, and a plurality of inclined chip removal grooves (4) are arranged on the circumferential edge of the saw cutting part (3) of the circular base (1), the chip removal grooves (4) divide the saw cutting part (3) into a plurality of saw teeth (5), a plurality of groups of air holes (8) are arranged on the circular base (1) and the number of the groups of air holes (8) is equal to the number of the saw teeth (5), each group of air holes (8) has 3-4 air holes (8), and the outermost air hole (8) in each group of air holes (8) is located in the saw tooth (5). 2.The brazed diamond circular saw blade for cutting rock plate according to claim 1, characterized in that: The circular base (1) is a metal base with a thickness of 0.8-1.2 mm. 3.The brazed diamond circular saw blade for cutting rock plate according to claim 1, characterized in that: The ring width of the saw cutting part (3) is 10-20 mm. 4.The brazed diamond circular saw disc for cutting rock plate according to claim 3, characterized in that: The particle size of the diamond (6) in the saw cutting part (3) is 0.1-0.5 mm. 5.The brazed diamond circular saw blade for cutting rock plate according to claim 1, characterized in that: The angle of the inclined chip removal groove (4) is 30-45 degrees, the width of the chip removal groove (4) is 2-3 mm, and the depth of the chip removal groove (4) is 8-12 mm. 6.The brazed diamond circular saw blade for cutting rock plate according to claim 1, characterized in that: Each group of air holes (8) is located on an arc (9) with a diameter of 85-95 mm and passing through the center of the circular base (1) and the center of the outer circle of the saw tooth (5), and the arc distance between the air holes (8) in each group of air holes (8) is equal.

7. The brazed diamond saw disc according to claim 6, wherein: Each group of air holes (8) is a circular air hole, and the diameters of the air holes (8) in each group of air holes (8) are the same or gradually increase from inside to outside.

Images