WO2017133286A1

WO2017133286A1 - Cutting bit of gang saw for slant cutting granite and quartzite using saw blade, and formulation thereof

Info

Publication number: WO2017133286A1
Application number: PCT/CN2016/104833
Authority: WO
Inventors: 广州普泰克金刚石工具有限公司; 廖有为
Original assignee: 广州普泰克金刚石工具有限公司
Priority date: 2016-02-01
Filing date: 2016-11-07
Publication date: 2017-08-10
Also published as: CN105666706A

Abstract

A cutting bit of a gang saw for slant cutting granite and quartzite using a saw blade, and a formulation thereof. The cutting bit is of a novel structure, and effectively resolves gradient change of the hardness and the soft or hard degree of the whole structure by means of a different mode of the synthesis hardness of metal powder of a cutting bit matrix and ingredients and the volume concentration ratio of diamond (4), such that the hardness requirements for slant cutting mechanical equipment are guaranteed during a cutting process while effective cutting of granite and quartzite is achieved, thereby overcoming the defects of conventional cutting approaches. Therefore, the beneficial effect is actually providing a cutting bit capable of slant cutting granite and quartzite using a saw blade and providing smooth and thin cut stone, and having high efficiency, high yield, and low costs.

Description

Blade head for oblique cutting granite and quartz stone saw blade and formula thereof

Technical field

The invention relates to the field of cutting of super-hard materials, in particular to a cutter head on a tilting row saw of a saw blade inclined and reciprocating cutting granite and quartz stone and a formula thereof.

Background technique

Granite and quartz stone processing and cutting equipment are usually circular saws and wire saws, but traditional circular saws consume raw materials and are limited by saw blades and fields during cutting. It is often difficult to achieve ideal processing results and processing costs. Higher, and the wire saw is not limited by the site and equipment relative to the circular saw, and can process the ideal plate. However, the defect of the wire saw is that the cost itself is too high, which is easy to cause the processing cost, and the wire saw has certain The flexibility is easy to cause the wave plate, curved plate, large and small plate and axe plate of the plate, so the processing cost is high and the defective rate is relatively high.

The traditional gang saw is also a kind of stone processing equipment. It is a processing equipment that puts a set of (several to several hundred unequal) saw blades on the reciprocating motion saw frame to cut the stone blocks into plates. For the gang saw equipment, for example, the existing marble gang saw uses a large flywheel to improve the running stability, effectively store energy, the whole machine cutting mode, the main motor drives the flywheel, drives the saw frame to make a linear reciprocating motion; The car is lifted by the lift of the lifting platform. When the block material is processed, the saw frame keeps moving back and forth. The waste material loaded with the stone block material can be raised by the lifting mechanism, which can greatly improve the cutting effect.

It should be pointed out that the traditional saw blade is installed parallel to the horizontal plane, the motor drives the flywheel to rotate through the belt, and the rotating flywheel turns the rotary motion into a linear motion through the crank linkage mechanism, pushing the saw frame and the saw blade installed in the saw frame to reciprocate. The movement is cut into stones and installed on the barn. The lifting mechanism touches the blade on the saw blade. The cutter head makes the relative cutting movement on the stone to achieve the purpose of cutting the stone. This cutting mode is feasible for marble and ordinary granite. Because the hardness and strength of marble and ordinary granite are low, the cutting force acting on the cutter head during cutting is small, and the diamond particles in the cutter tire take off for a long time under the repeated impact of the cutting force, so that the cutter head can maintain Sharpness can also complete the cutting of marble and ordinary granite with a certain life; but for granite and quartz with high hardness, due to the hardness strength, the cutting force of the cutting head is large, and the cutting head is in the process of cutting. The diamond particles in the body fall off much faster in the same time, and because the saw blade is horizontally reciprocating, a large amount of diamond particles and cut stone chips are not easily discharged in time, but they are mutually ground with the cutter head and the cutter body on the saw blade. In this way, the wear of the cutter head is faster and affects the normal operation. Therefore, the granite saw and the quartz stone with high hardness of the translation saw have low efficiency and high cost, and can hardly be cut by the horizontal method.

After continuous improvement and experiment, the industry has proposed that the saw blade oblique cutting granite, quartz stone gang saw can basically achieve the mechanical principle of cutting granite, quartz stone and similar materials, but with the traditional cutting head is still difficult to achieve effective Cutting, the traditional cutter head has a uniform hardness and is easy to fall off during cutting. Since the conventional one is a single cutter head or a sandwich cutter head, the hardness of the cutter head is uniform, and the composition is basically composed of cobalt Co, nickel Ni, copper Cu, tin. A metal powder composed of a single component of Sn, iron Fe, tungsten W or an alloy of two or more components is a diamond cutter head which is formed by incorporation of a predetermined proportion of diamond by high-temperature hot-melting. The defect of the cutter head is that the hardness is insufficient. Moreover, the structure is also extremely unreasonable. Usually it is a cutter head with a very uniform plane hardness. Therefore, when cutting a hard material such as granite or quartz stone, it is easy to cause the stone and the cutter head plane to be consumed equally when cutting, and it cannot be timely and effectively The cut stone chips are washed away from the saw seam, and if the diamond is dropped from the cutter head, if it cannot be discharged in time, it will be on the cutter head. Rigid stone causes mutual wear and tear, it is easy to drop the cutter head welded on the saw blade, and the saw blade is stuck in the saw blade to make the whole saw blade jam or break, which poses certain work hazard; therefore, the traditional cutter head is used. On the slash saw that cuts granite and quartz stone obliquely, it is still impossible to realize the use of low-cost gang saw cutting granules. Stone, quartz stone material.

The key points to be pointed out in this case are a cutter head for obliquely cutting granite and quartz stone gang saw and its formula. The mechanical principle of the inclined cutting of the saw blade is used to solve the faults and defects that may occur on the machine itself, and the cutter head is passed through the cutter head. The improvement of the structure and its formulation will not cause the detached diamond particles and stone chips to be ground with the cutter head and the cutter body on the saw blade, and the cutting of the stone can be completed smoothly.

The above-mentioned conventional techniques for cutting granite and quartz stone materials have the following drawbacks:

(1), circular saw processing costs are high, subject to site restrictions;

(2) The wire saw has high processing cost and high defect rate;

(3), the traditional horizontal row saw can not achieve effective cutting;

(4) The sawing of the saw blade inclined cutting can not achieve effective cutting if the traditional cutting head is applied;

Therefore, in view of the above aspects, it is necessary to effectively innovate the prior art.

Summary of the invention

In view of the above drawbacks, the present invention provides a cutter head for obliquely cutting granite and quartz stone saw blades and a formula thereof, and the cutter head is applied with a novel structure, through the synthetic hardness of the metal powder and the ingredients of the cutter body. The volumetric concentration ratio of diamond is different, and the structure with different hardness gradients is set to effectively solve the gradient change of the hardness of the cutter head and the hardness of the overall structure, so that the hardness requirement of the inclined cutting mechanical equipment is ensured during the cutting process, and Successfully realized the effective cutting of granite and quartz stone by the gang saw to make up for the traditional cutting defects. The beneficial effect of the patent of the invention is that it can provide a flat and thin cutting, high efficiency, high yield rate, and saw blade oblique cutting granite. , quartz stone cutter head, and production The cost is low to solve many shortcomings of the prior art.

To achieve the above object, the present invention adopts the following technical solutions:

A blade for obliquely cutting granite and quartz stone saws and a formula thereof, comprising: a base layer, a reinforcing layer, a surface layer, a diamond, a graphite core, and a reinforcing layer is arranged adjacent to both sides of the base layer, and two of the reinforcing layers are a surface layer is disposed on the side, wherein the base end of the base layer is provided with a graphite core;

Correspondingly, the cutter head is composed of five layers, and the back of the five layers is provided with a welding position for welding with the saw blade;

The blade head of the saw blade oblique cutting granite and the quartz stone row saw and the formula thereof are made by the new formula, ratio and structure by the traditional production method as follows:

The first step: firstly prepare the carcass powder of the cutter head, and the formula and ratio of the base powder of the cutter head are: Co97%～99% of cobalt powder: Si1%～3% of silicon powder;

The second step: after the carcass base powder is uniformly prepared, the complete ratio of the base layer is prepared, and the diamond is uniformly stirred in the powder containing the cobalt powder Co97% to 99%: silicon powder Si1% to 3%. The ratio of the volume concentration of the diamond of the base layer to the volume concentration of the base powder is: 10% to 15%: 85% to 90%;

The third step: preparing a uniform carcass base powder, and then formulating the complete ratio of the reinforcing layer, adding diamond to the powder containing cobalt powder Co97% to 99%: silicon powder Si1% to 3%, evenly The ratio of the volume concentration of the diamond of the reinforcing layer to the volume concentration of the base powder is: 20% to 25%: 75% to 80%;

The third step: preparing a uniform carcass base powder, and then formulating the complete ratio of the surface layer, adding diamond to the powder containing cobalt powder Co97% to 99%: silicon powder Si1% to 3%, evenly The ratio of the volume concentration of diamond in the surface layer to the volume concentration of the base powder is: 30% to 35%: 65% to 70%;

The fourth step: after the complete carcass powder is prepared, it is formed by cold pressing to form a single-piece head substrate of the base layer, the reinforcing layer and the surface layer, and the knife is formed in the base layer during cold press forming. The top end is inlaid with a graphite core, and the complete base layer, reinforcement layer and surface layer are obtained;

Step 5: stacking the reinforcing layers on the two adjacent sides of the base layer, and then stacking the surface layers on the two sides of the outer side of the reinforcing layer, and placing the five-layered single-piece cutting head substrate in the high-temperature furnace High-temperature sintering is carried out, and the high-temperature sintering is a conventional technique. After high-temperature sintering of a five-layer single-piece substrate into a whole, an embryo of a saw blade obliquely cutting a granite and a quartz stone saw is formed;

Step 6: Cutting and shaping the complete cutter head to form a finished cutter head. The side of the finished cutter head with the graphite core is the cutter head end, and the corresponding side is provided with a welding position for welding with the saw blade. .

DRAWINGS

The invention will now be described in further detail with reference to the accompanying drawings.

1 is a schematic view showing the finished structure of a saw blade obliquely cutting granite and a quartz stone saw blade according to an embodiment of the present invention;

2 is a schematic view showing a layered structure of a saw blade obliquely cut granite and a quartz stone saw blade according to an embodiment of the invention.

3 is a schematic structural view of the saw blade obliquely cut granite and quartz stone saw blade according to the embodiment of the present invention.

4 is a schematic view showing the structure of the saw blade obliquely cut granite and the quartz stone saw blade without the graphite core according to the second embodiment of the present invention.

Fig. 5 is a schematic view showing the use of the saw blade oblique cutting granite and the quartz stone saw blade without the graphite core structure according to the second embodiment of the present invention.

In the picture:

1, the base layer; 2, the reinforcement layer; 3, the surface layer; 4, diamond; 5, graphite core; 6, welding position; 7, groove.

detailed description

Embodiment 1:

As shown in FIG. 1-3, the saw blade of the embodiment of the invention obliquely cuts the cutter head of the granite and the quartz stone saw and the formula thereof;

The cutter head comprises a base layer 1, a reinforcing layer 2, a surface layer 3, a diamond 4, and a graphite core 5. The base end of the base layer 1 is provided with a graphite core 5, and a reinforcing layer 2 is disposed adjacent to each other on both sides thereof. The outer surface of the reinforcing layer 2 is respectively provided with a surface layer 3, the cutter head structure is composed of five single-piece cutter head substrates, and the five single-piece cutter head substrates are provided with diamond 4;

The cutter head graphite core 5 is provided with a welding position 6 corresponding to the side wall;

Through the improvement of the structure of the cutter head, the structure of the hardness gradient is formed, which overcomes some defects of the traditional cutter head when matched with the stone material of the oblique cutting granite quartz stone. Due to the above formula and the composition of the ratio, the entire cutter head exists. The degree of softness and hardness of the layering is different. The cutter head obtained by the above formula and ratio is welded to the saw blade of the obliquely cut granite and quartz stone saw, and contains cobalt powder Co97%～99%: silicon powder Si1%～3 % of the base powder is added to the cutter head after the diamond 4, which is harder than the traditional cutter head. It is suitable for the hardness requirement of the gang saw cutting. Due to the difference in the volume concentration of the diamond 4 in the layering ratio, a cutter head is formed. Can The layering hardness is different, the base layer 1 is mixed with 10% to 15% of the diamond 4 volume concentration, belonging to the softest part of the same cutter head, so it is also the first wear, and secondly, the reinforcement layer is disposed adjacent to both sides of the base layer 1. 2 with 20% to 25% of diamond 4 volume concentration, belonging to the center of the texture in the same cutter head, so wear after the base layer 1, and the surface layer 3 on both sides is mixed with 30% to 35% of the diamond 4 volume The concentration is the hardest part in the same cutter head, so the final wear, while at the same time adding a relatively large volume of diamond 4 volume, also guarantees the mechanical requirements of the oblique cutting granite and quartz stone sawing equipment, and at the base layer 1 The graphite core 5 is also provided with a soft texture. In the process of the saw blade operation, the graphite core 5 is first worn. After the new cutter head starts working for a few seconds, the graphite core 5 can be worn and will be presented. A groove 7 is formed, and the groove 7 is provided to effectively provide a reliable discharge space for the stone chips and the dropped diamond in the saw blade operation, and effectively solves the problem that the saw blade is stuck and detached from the diamond. With the cutter head The possibility of mutual wear, because the base layer 1, the reinforcing layer 2 and the surface layer 3 are formed by a gradient structure of hardness, in the use of the cutter head, the arcuate groove 7 is always effectively maintained, and the entire saw blade is used. Life provides a strong guarantee.

The graphite core 5 is disposed with the tip end of the base layer 1 and has a width of 2-3 mm.

Embodiment 2:

As shown in FIG. 4-5, the basic structure and the formula of the blade for obliquely cutting granite and quartz stone saws according to the second embodiment of the present invention are the same as those of the first embodiment, and are not provided only on the base layer 1 of the structure. The graphite core 5 can be provided with a cutter head that does not require the graphite core 5 according to the needs of different uses and sites, because the texture of the base layer 1 is the softest and the texture of the reinforcement layer 2 is centered according to the gradient structure of the patent head of the present invention. The surface layer 3 has the hardest texture. Therefore, after welding for a set time, the degree of wear and tear of the texture will be completely different due to the difference in hardness and hardness of the texture, and the degree of wear will be completely different. A groove 7 and the cutter head always have the groove 7 in the process of use, the same effect as in the first embodiment can be achieved, and the advantage is that the process of manufacturing the cutter head is reduced, which saves production time and cost, and the defect is There is a shorter one at the beginning of use The sealing and cutting time are easy to cause accidental damage and damage to the cutter head.

The above description of the embodiments is provided to enable those skilled in the art to understand and apply the present technology. Those skilled in the art can readily make various modifications to the examples and apply the general principles described herein. In other embodiments, no creative work is required. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art according to the disclosure of the present invention, the improvements and modifications made to the present case should be within the scope of protection of the present case.

Claims

The invention relates to a cutter head for obliquely cutting granite and quartz stone saw with a saw blade and a formula thereof, comprising a base layer (1), a reinforcement layer (2), a surface layer (3), a diamond (4), a graphite core (5), The welding position (6) and the groove (7) are characterized in that: the base end of the base layer (1) is provided with a graphite core (5), and a reinforcing layer (2) is disposed adjacent to each other on both sides thereof. The two outer sidewalls of the reinforcing layer (2) are respectively provided with a surface layer (3), and the cutter head structure is composed of five single-piece cutter head substrates, and the five single-piece cutter head substrates are They are all provided with diamond (4).
A cutting head for obliquely cutting granite and quartz stone saws according to claim 1, wherein the base layer (1) is made of cobalt powder Co97% to 99%: silicon powder Si1%~ 3% of the base powder, and then added diamond (4) to the base powder, the volume concentration of the diamond (4) of the base layer (1) and the volume ratio of the base powder is: 10% to 15%: 85% to 90%.
The cutter head for obliquely cutting granite and quartz stone saw according to claim 1, and the formula thereof, wherein the reinforcing layer (2) is composed of cobalt powder Co97% to 99%: silicon powder Si1% ～3% of the base powder, and then adding diamond (4) to the base powder, the volume ratio of the volume concentration of the diamond (4) of the reinforcing layer (2) to the volume of the base powder is: 20% to 25 %: 75% to 80%.
The cutter head for obliquely cutting granite and quartz stone saw according to claim 1, wherein the surface layer (3) is made of cobalt powder Co97% to 99%: silicon powder Si1% ～3% of the base powder, and then diamond (4) is added to the base powder, and the volume concentration ratio of the diamond (4) of the surface layer (3) to the volume ratio of the base powder is: 30% to 35 %: 65% to 70%.
The cutting head of a saw blade oblique cutting granite and quartz stone saw according to claim 1, wherein the graphite core (5) is disposed at a cutting end of the base layer (1), and the width is 2-3mm.
The cutter head of the saw blade oblique cutting granite and quartz stone saw according to claim 1 and the formula thereof, wherein the graphite core (5) is provided with a welding position (6) at a corresponding position.
A cutting head for obliquely cutting granite and quartz stone saw blades according to claim 1, and a formulation thereof, wherein the cutting head always has a groove (7) during use.