阅读说明：本技术 一种具有高硬度复合涂层的锯片及其制备方法 (Saw blade with high-hardness composite coating and preparation method thereof ) 是由 何小军 张尚平 杜朝程 朱新鹏 严绍其 李波 于 2021-08-20 设计创作，主要内容包括：本发明涉及锯片生产技术领域,尤其涉及了一种具有高硬度复合涂层的锯片及其制备方法,包括锯片圆盘、刀齿、刀齿槽、复合圆盘和通孔,刀齿的材质为硬化钢和碳化钨调质合成,复合圆盘由高速工具钢制成,锯片圆盘和复合圆盘的表面均涂有复合涂层。该具有高硬度复合涂层的锯片及其制备方法,通过在锯片圆盘和复合圆盘的外表面喷涂高硬度涂层,高硬度涂层以Al-(2)O-(3)和TiO-(2)为主要原料,并添加有多种元素,使该锯片具有高硬度的优点,其抗拉强度明显高于普通锯片,通过在锯片圆盘和复合圆盘的外表面喷涂耐磨涂层,耐磨涂层由硅、铌、钼、钽、钨和铼中至少三种元素组成,使该锯片具有耐磨性强的优点,其耐磨性能明显高于普通锯片。(The invention relates to the technical field of saw blade production, in particular to a saw blade with a high-hardness composite coating and a preparation method thereof. The saw blade with high-hardness composite coating and the preparation method thereof are realized by arranging a saw blade disc and a composite discThe outer surface of the steel plate is sprayed with a high-hardness coating which is made of Al 2 O 3 And TiO 2 The wear-resistant coating is formed by spraying at least three elements of silicon, niobium, molybdenum, tantalum, tungsten and rhenium on the outer surfaces of the saw blade disc and the composite disc, so that the saw blade has the advantage of strong wear resistance, and the wear resistance of the saw blade is obviously higher than that of the common saw blade.)

1. The utility model provides a saw bit with high rigidity composite coating, includes saw bit disc (1), sword tooth (2), sword tooth groove (3), composite disc (4) and through-hole (5), its characterized in that: the saw bit is characterized in that the saw bit is fixedly connected to the side face of the disc (1), the gullet grooves (3) are arranged on the upper surface of the saw bit disc (1) and close to the gullet teeth (2), the composite disc (4) is fixedly connected to the top of the saw bit disc (1), and the through hole (5) is arranged in the center of the upper surface of the saw bit disc (1).

2. A saw blade having a high hardness composite coating according to claim 1, wherein: the quantity of sword tooth (2) is forty, forty the equidistant distribution in the side of disc (1) of sword tooth (2), the material of sword tooth (2) is hardened steel and tungsten carbide quenching and tempering synthesis, sword tooth (2) inclination is 7 degrees.

3. A saw blade having a high hardness composite coating according to claim 1, wherein: the number of the gullet slots (3) is four, and the gullet slots (3) are symmetrically distributed on the upper surface of the saw blade disc (1) at equal intervals and close to the positions of the gullet teeth (2).

4. A saw blade having a high hardness composite coating according to claim 1, wherein: the composite disc (4) is made of high-speed tool steel, the composite disc (4) is fixedly connected to the top and the bottom of the saw blade disc (1) respectively, and composite coatings are coated on the surfaces of the saw blade disc (1) and the composite disc (4).

5. A saw blade having a high hardness composite coating according to claim 1, wherein: the composite coating consists of a wear-resistant coating and a high-hardness coating, wherein the high-hardness coating is made of Al₂O₃And TiO₂The high-hardness coating is a main raw material and comprises the following elements in percentage by weight: al (Al)₂O₃And TiO 2: 72.24% -80.09%, carbon: 1.2% -1.8%, chromium: 12% -17%, rare earth elements: 2.5%, calcium: 1.4%, manganese: 1.25%, tungsten: 1.5%, silicon: 0.7%, titanium: 1.55%, sulfur: 0.04%, phosphorus: 0.02%, and the wear-resistant coating is composed of at least 3 elements of silicon, niobium, molybdenum, tantalum, tungsten and rhenium.

6. A method for preparing a saw blade with a high-hardness composite coating is characterized by comprising the following steps:

s1: after the 65Mn spring steel material is subjected to quenching and annealing process treatment, punching the spring steel material into a round shape by a forming machine to obtain a saw blade disc (1);

s2: connecting a composite disc (4) made of high-speed tool steel with the saw blade disc (1) obtained in the step (1) in a welding mode, connecting a cutter ring hardened and tempered by hardened steel and tungsten carbide with the saw blade disc (1) obtained in the step (1) in a welding mode, and respectively polishing the surfaces of the cutter teeth (2) of the saw blade disc (1) and the composite disc (4) after welding is finished;

s3: the method comprises the steps that a punch forming machine is used for punch forming a cutter gear ring to obtain forty cutter teeth (2) which are distributed at equal intervals, tooth washing processing is carried out on the cutter teeth (2), the punch forming machine is used for punch forming at the position, close to the cutter teeth (2), of a saw blade disc (1) to obtain a tooth groove (3), and finally, a through hole (5) is punched at the center of the saw blade disc (1);

s4: firstly, the high-hardness coating in the claim 5 is evenly sprayed on the outer surfaces of the saw blade disc (1) and the composite disc (4) through a spraying machine, then the wear-resistant coating in the claim 5 is evenly sprayed on the outer surfaces of the saw blade disc (1) and the composite disc (4) through the spraying machine, and after the spraying is finished, the saw blade disc (1) and the composite disc (4) are placed in a ventilated environment to be in a completely air-dried state.

Technical Field

The invention relates to the technical field of saw blade production, in particular to a saw blade with a high-hardness composite coating and a preparation method thereof.

Background

Saw blades are a general term for thin circular cutters for cutting solid materials, and can be divided into: a diamond saw blade for stone cutting; the high-speed steel saw blade for cutting metal materials is a hard alloy saw blade for cutting solid wood, furniture, artificial boards, aluminum alloy, aluminum profiles, radiators, plastics, plastic steel and the like.

The universal material for the circular saw blade is mainly used for cutting off low-hardness carbon steel and non-ferrous metal bars and pipes. The circular saw blade for cutting the pipe made of the superhard material is used for milling the difficult-to-cut material.

The existing circular saw blade generally has the defects of low hardness and low wear resistance, and the saw blade cannot be used due to the fact that the circular saw blade is broken and abraded in the using process and needs to be replaced frequently, and the cost is increased.

Disclosure of Invention

The present invention is directed to a saw blade having a high hardness composite coating and a method for manufacturing the same, which solve the problems set forth in the background art.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a saw bit with high rigidity composite coating, includes saw bit disc, sword tooth's socket, compound disc and through-hole, fixed connection is in the side of disc, the position that the upper surface that the sword tooth's socket was seted up in the saw bit disc is close to the sword tooth, compound disc fixed connection is in the top of saw bit disc, the upper surface center of saw bit disc is seted up in the through-hole.

Preferably, the number of the cutter teeth is forty, the forty cutter teeth are equidistantly distributed on the side face of the disc, the cutter teeth are made of hardened steel and tungsten carbide through quenching and tempering, and the inclination angle of the cutter teeth is 7 degrees.

Preferably, the number of the gullet slots is four, and the four gullet slots are symmetrically distributed on the upper surface of the saw blade disc at equal intervals and close to the positions of the gullet teeth.

Preferably, the composite disc is made of high-speed tool steel, the composite disc is fixedly connected to the top and the bottom of the saw blade disc respectively, and the surfaces of the saw blade disc and the composite disc are coated with composite coatings.

Preferably, the composite coating consists of a wear-resistant coating and a high-hardness coating, and the high-hardness coating is made of Al₂O₃And TiO₂The high-hardness coating is a main raw material and comprises the following elements in percentage by weight: al (Al)₂O₃And TiO 2: 72.24% -80.09%, carbon: 1.2% -1.8%, chromium: 12% -17%, rare earth elements: 2.5%, calcium: 1.4%, manganese: 1.25%, tungsten: 1.5%, silicon: 0.7%, titanium: 1.55%, sulfur: 0.04%, phosphorus: 0.02%, and the wear-resistant coating is composed of at least 3 elements of silicon, niobium, molybdenum, tantalum, tungsten and rhenium.

A method for preparing a saw blade with a high-hardness composite coating comprises the following steps:

s1: after the 65Mn spring steel material is subjected to quenching and annealing process treatment, punching the spring steel material into a round shape by a forming machine to obtain a saw blade disc;

s2: connecting a composite disc made of high-speed tool steel with the saw blade disc obtained in the step 1 in a welding mode, connecting a cutter ring formed by hardening steel and tungsten carbide through quenching and tempering with the saw blade disc obtained in the step 1 in a welding mode, and respectively polishing the surfaces of the cutter teeth of the saw blade disc and the composite disc after the welding is finished;

s3: performing punch forming on the cutter gear ring by using a punch forming machine to obtain forty cutter teeth which are distributed at equal intervals, performing tooth washing treatment on the cutter teeth, performing punch forming on the position, close to the cutter teeth, of the saw blade disc by using the punch forming machine to obtain tooth sockets, and finally punching the center of the saw blade disc to obtain a through hole;

s4: the high-hardness coating in the claim 5 is firstly evenly sprayed on the outer surfaces of the saw blade disc and the composite disc through a sprayer, then the wear-resistant coating in the claim 5 is evenly sprayed on the outer surfaces of the saw blade disc and the composite disc through the sprayer, and after the spraying is finished, the saw blade disc and the composite disc are kept still to be in a completely air-dried state in a ventilated environment.

Compared with the prior art, the invention has the beneficial effects that:

1. the saw blade with the high-hardness composite coating and the preparation method thereof are characterized in that the high-hardness coating is sprayed on the outer surfaces of the saw blade disc and the composite disc, and the high-hardness coating is made of Al₂O₃And TiO₂The saw blade is made of main raw materials and is added with various elements, so that the saw blade has the advantage of high hardness, the tensile strength of the saw blade is obviously higher than that of a common saw blade, the saw blade is ensured not to break in high-speed operation, the safety of the saw blade in the operation process is ensured, the weight of the saw blade is not increased compared with that of the common saw blade, the load is greatly reduced in operation, and a powerful foundation is laid for improving the cutting speed.

2. The saw blade with the high-hardness composite coating and the preparation method thereof have the advantages that the wear-resistant coating is sprayed on the outer surfaces of the saw blade disc and the composite disc and is composed of at least 3 elements of silicon, niobium, molybdenum, tantalum, tungsten and rhenium, so that the saw blade has the advantage of high wear resistance, the wear resistance of the saw blade is obviously higher than that of a common saw blade, the saw blade is ensured to be less worn in the process of high-speed rotation, and the wear-resistant coating can be sprayed again when the saw blade is severely worn after being used for a long time, so that the service life of a saw blade piece can be prolonged, and the production cost can be reduced.

3. According to the saw blade with the high-hardness composite coating and the preparation method thereof, the cutter teeth are made of hardened steel and tungsten carbide through quenching and tempering, the inclination angle of the cutter teeth is 7 degrees, timely heat dissipation is facilitated during high-speed cutting, the size of the cutter teeth is smaller than that of common saw blade cutter teeth, but the number of the cutter teeth is large, the single-tooth feeding amount is facilitated to be reduced, and therefore the consumption of the cutter teeth is reduced.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor.

FIG. 1 is a top view of a circular saw blade of the present invention.

In the figure: 1. a saw blade disc; 2. cutter teeth; 3. a gullet; 4. a composite disc; 5. and a through hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The first embodiment is as follows: referring to fig. 1, the present invention provides a technical solution: the utility model provides a saw bit with high rigidity composite coating, includes saw bit disc 1, sword tooth 2, sword tooth groove 3, compound disc 4 and through-hole 5, fixed connection is in the side of disc 1, sword tooth groove 3 sets up in the last surface of saw bit disc 1The surface is close to the position of the cutter teeth 2, the composite disk 4 is fixedly connected with the top of the saw blade disk 1, the through hole 5 is arranged at the center of the upper surface of the saw blade disc 1, the number of the knife teeth 2 is forty, the forty knife teeth 2 are distributed on the side surface of the disc 1 at equal intervals, the cutter teeth 2 are made of hardened steel and tungsten carbide through quenching and tempering, the inclination angle of the cutter teeth 2 is 7 degrees, the number of the gullet slots 3 is four, the four gullet slots 3 are symmetrically distributed on the upper surface of the saw blade disc 1 at equal intervals and close to the positions of the teeth 2, the composite disc 4 is made of high-speed tool steel, the composite disc 4 is respectively and fixedly connected with the top and the bottom of the saw blade disc 1, the surfaces of the saw blade disc 1 and the composite disc 4 are coated with composite coatings, each composite coating consists of a wear-resistant coating and a high-hardness coating, and the high-hardness coatings are made of Al.₂O₃And TiO₂The high-hardness coating is a main raw material and comprises the following elements in percentage by weight: al (Al)₂O₃And TiO 2: 72.24%, carbon: 1.8%, chromium: 17%, rare earth elements: 2.5%, calcium: 1.4%, manganese: 1.25%, tungsten: 1.5%, silicon: 0.7%, titanium: 1.55%, sulfur: 0.04%, phosphorus: 0.02 percent, and the wear-resistant coating consists of 3 elements of silicon, niobium and molybdenum.

Example two: referring to fig. 1, the present invention provides a technical solution: the utility model provides a saw bit with high rigidity composite coating, includes saw bit disc 1, sword tooth 2, sword tooth groove 3, compound disc 4 and through-hole 5, fixed connection is in the side of disc 1, sword tooth groove 3 sets up the position that the upper surface of saw bit disc 1 is close to sword tooth 2, compound disc 4 fixed connection is in the top of saw bit disc 1, through-hole 5 sets up the upper surface center in saw bit disc 1, the quantity of sword tooth 2 is forty, forty the equidistant distribution in the side of disc 1 of sword tooth 2, the material of sword tooth 2 is hardening steel and tungsten carbide quenching and tempering synthesis, sword tooth 2 angle of inclination is 7 degrees, the quantity of sword tooth groove 3 is four, four equidistant symmetric distribution in the upper surface of saw bit disc 1 is close to the position of sword tooth 2, compound disc 4 is made by high-speed tool steel, compound disc 4 is fixed connection in the top and the bottom of saw bit disc 1 respectively, the saw blade disc 1 and the blade discThe surfaces of the combined disks 4 are coated with composite coatings, each composite coating consists of a wear-resistant coating and a high-hardness coating, and the high-hardness coating is made of Al₂O₃And TiO₂The high-hardness coating is a main raw material and comprises the following elements in percentage by weight: al (Al)₂O₃And TiO 2: 80.09%, carbon: 1.2%, chromium: 12%, rare earth elements: 2.5%, calcium: 1.4%, manganese: 1.25%, tungsten: 1.5%, silicon: 0.7%, titanium: 1.55%, sulfur: 0.04%, phosphorus: 0.02 percent, and the wear-resistant coating consists of 3 elements of silicon, niobium and molybdenum.

And (4) judging the standard: the hardness and the wear resistance of the saw blade in the first embodiment are compared to those in the second embodiment, so that the second embodiment is the best embodiment.

The invention provides a technical scheme that: a method for preparing a saw blade with a high-hardness composite coating comprises the following steps:

s1: after the 65Mn spring steel material is subjected to quenching and annealing process treatment, punching the spring steel material into a round shape by a forming machine to obtain a saw blade disc 1;

s2: connecting a composite disc 4 made of high-speed tool steel with the saw blade disc 1 obtained in the step 1 in a welding mode, connecting a cutter ring hardened and tempered by hardened steel and tungsten carbide with the saw blade disc 1 obtained in the step 1 in a welding mode, and respectively polishing the surfaces of cutter teeth 2 of the saw blade disc 1 and the composite disc 4 after welding is finished;

s3: performing punch forming on the cutter tooth ring by using a punch forming machine to obtain forty cutter teeth 2 distributed at equal intervals, performing tooth washing treatment on the cutter teeth 2, performing punch forming on the saw blade disc 1 close to the cutter teeth 2 by using the punch forming machine to obtain tooth grooves 3, and finally, performing punch forming on the center of the saw blade disc 1 to obtain a through hole 5;

s4: firstly, the high-hardness coating in the claim 5 is evenly sprayed on the outer surfaces of the saw blade disc 1 and the composite disc 4 through a spraying machine, then the wear-resistant coating in the claim 5 is evenly sprayed on the outer surfaces of the saw blade disc 1 and the composite disc 4 through the spraying machine, and after the spraying is finished, the saw blade disc 1 and the composite disc 4 are kept still to be in a completely air-dried state in a ventilated environment.

Has the advantages that:

1. the saw blade with the high-hardness composite coating and the preparation method thereof are characterized in that the high-hardness coating is sprayed on the outer surfaces of the saw blade disc and the composite disc, and the high-hardness coating is made of Al₂O₃And TiO₂The saw blade is made of main raw materials and is added with various elements, so that the saw blade has the advantage of high hardness, the tensile strength of the saw blade is obviously higher than that of a common saw blade, the saw blade is ensured not to break in high-speed operation, the safety of the saw blade in the operation process is ensured, the weight of the saw blade is not increased compared with that of the common saw blade, the load is greatly reduced in operation, and a powerful foundation is laid for improving the cutting speed.

2. The saw blade with the high-hardness composite coating and the preparation method thereof have the advantages that the wear-resistant coating is sprayed on the outer surfaces of the saw blade disc and the composite disc and is composed of at least 3 elements of silicon, niobium, molybdenum, tantalum, tungsten and rhenium, so that the saw blade has the advantage of high wear resistance, the wear resistance of the saw blade is obviously higher than that of a common saw blade, the saw blade is ensured to be less worn in the process of high-speed rotation, and the wear-resistant coating can be sprayed again when the saw blade is severely worn after being used for a long time, so that the service life of a saw blade piece can be prolonged, and the production cost can be reduced.

3. According to the saw blade with the high-hardness composite coating and the preparation method thereof, the cutter teeth are made of hardened steel and tungsten carbide through quenching and tempering, the inclination angle of the cutter teeth is 7 degrees, timely heat dissipation is facilitated during high-speed cutting, the size of the cutter teeth is smaller than that of common saw blade cutter teeth, but the number of the cutter teeth is large, the single-tooth feeding amount is facilitated to be reduced, and therefore the consumption of the cutter teeth is reduced.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. The term "comprising", without further limitation, means that the element so defined is not excluded from the group consisting of additional identical elements in the process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.