阅读说明：本技术 一种适用于高强度岩石开采的金刚石工具 (Diamond tool suitable for high-strength rock exploitation ) 是由 柴辽江 于 2021-06-16 设计创作，主要内容包括：本发明属于金刚石锯片技术领域,公开了一种适用于高强度岩石开采的金刚石工具,包括热压烧结成型的基体部分和刀头部分,且所述刀头部分包括金刚石颗粒和胎体粉末；所述金刚石颗粒体积浓度为12％,且所述金刚石颗粒包括：60％的金刚石-2140-40/45；40％的金刚石-2120-45/50；所述胎体粉末包括如下重量百分比的成分：钴18-25％；铜30-40％；锡4-8％；铁粉14-30％；合金粉13-23％；碳粒1-3％；且所述合金粉包括：占总重量4-8％的铜锡合金粉；占总重量6-10％的铁镍合金粉；占总重量3-5％的磷铁合金粉；综上,本发明所提供的金刚石工具通过配方调整的方式,使其烧结成型后的刀头部分硬度可达HRB95,由此能有效适用于高强度岩石的开采作业,并提高作业效率、降低作业成本。(The invention belongs to the technical field of diamond saw blades, and discloses a diamond tool suitable for high-strength rock mining, which comprises a base body part and a cutter head part, wherein the base body part and the cutter head part are formed by hot-pressing sintering, and the cutter head part comprises diamond particles and matrix powder; the diamond particle volume concentration is 12%, and the diamond particles include: 60% diamond-2140-40/45; 40% diamond-2120-45/50; the matrix powder comprises the following components in percentage by weight: 18-25% of cobalt; 30-40% of copper; 4 to 8 percent of tin; 14-30% of iron powder; 13-23% of alloy powder; 1-3% of carbon particles; and the alloy powder includes: copper-tin alloy powder accounting for 4-8% of the total weight; iron-nickel alloy powder accounting for 6-10% of the total weight; 3-5% ferrophosphorus powder; in conclusion, the hardness of the sintered and molded cutter head part of the diamond tool provided by the invention can reach HRB95 by means of formula adjustment, so that the diamond tool can be effectively suitable for mining operation of high-strength rock, the operation efficiency is improved, and the operation cost is reduced.)

1. A diamond tool suitable for high-strength rock mining is characterized by comprising a base body part and a cutter head part which are formed by hot-pressing sintering, wherein the cutter head part comprises diamond particles and matrix powder; the volume concentration of the diamond particles is 12%; the matrix powder comprises the following components in percentage by weight:

18-25% of cobalt;

30-40% of copper;

4 to 8 percent of tin;

14-30% of iron powder;

13-23% of alloy powder;

1-3% of carbon particles.

2. A diamond tool suitable for high strength rock mining according to claim 1, wherein the diamond particles comprise the following composition in weight percent:

60% diamond-2140-40/45;

40% diamond-2120-45/50.

3. The diamond tool suitable for high-strength rock mining as claimed in claim 1, wherein the diamond tool is formed by hot-pressing sintering at a temperature of 800-850 ℃, and the hardness of the tool bit part of the diamond tool after sintering is HRB 95.

4. A diamond tool suitable for high strength rock mining according to claim 1, wherein the diamond tool has a maximum diameter D of: d is more than or equal to 80mm and less than or equal to 100 mm.

5. The diamond tool for high strength rock mining as claimed in claim 1, wherein the iron powder comprises 1200-2000 mesh ultra-fine iron powder and 250-300 mesh ordinary iron powder, and the ultra-fine iron powder is 10-20% of the total weight, and the ordinary iron powder is 4-10% of the total weight.

6. A diamond tool suitable for high strength rock mining according to claim 5, wherein the alloy powder comprises the following components in percentage by weight:

copper-tin alloy powder accounting for 4-8% of the total weight;

iron-nickel alloy powder accounting for 6-10% of the total weight;

3-5% of ferrophosphorus alloy powder.

7. A diamond tool suitable for high strength rock mining according to claim 6, wherein the copper-tin alloy powder is copper-tin 80/20 alloy powder.

8. A diamond tool suitable for high strength rock mining according to claim 6, wherein the ferrophosphorus powder is 1000-1500 mesh ultra-fine ferrophosphorus powder.

9. A diamond tool suitable for high strength rock mining according to claim 6, wherein the matrix powder of the tool bit portion comprises the following components in weight percent:

21.7 percent of cobalt;

33.6 percent of copper;

6% of tin;

14.5 percent of superfine iron powder;

6 percent of common iron powder;

6% of copper-tin alloy powder;

8% of iron-nickel alloy powder;

3% of ferrophosphorus alloy powder;

1.2% of carbon particles.

10. A diamond tool suitable for high strength rock mining according to claim 6, wherein the matrix portion comprises the following composition in weight percent:

38% of copper;

7% of tin;

20% of superfine iron powder;

12% of common iron powder;

6% of copper-tin alloy powder;

12% of iron-nickel alloy powder;

5 percent of ferrophosphorus alloy powder.

Technical Field

The invention belongs to the technical field of diamond saw blades, and particularly relates to a diamond tool suitable for high-strength rock mining.

Background

The most common tool for sawing stone is the diamond saw blade, and the quality of the performance is the key to determine the cost and efficiency of stone processing.

The diamond saw blade is composed of three parts of diamond, a combined matrix and a matrix, and the diamond saw blade is classified into a cobalt-based diamond saw blade, an iron-based diamond saw blade and a copper-based diamond saw blade according to the type of the combined matrix. According to different cutting objects, different combined matrix products are selected, but the existing diamond saw blade still has the defect of insufficient strength, so that the problem that the saw blade is broken when the high-strength rock is mined is solved.

Disclosure of Invention

In view of the above, in order to solve the problems in the background art, the present invention is directed to a diamond tool suitable for high strength rock mining.

In order to achieve the purpose, the invention provides the following technical scheme: a diamond tool suitable for high-strength rock mining comprises a base part and a cutter head part which are formed by hot-pressing sintering, wherein the cutter head part comprises diamond particles and matrix powder; the volume concentration of the diamond particles is 12%; the matrix powder comprises the following components in percentage by weight;

18-25% of cobalt;

30-40% of copper;

4 to 8 percent of tin;

14-30% of iron powder;

13-23% of alloy powder;

1-3% of carbon particles.

Preferably, the diamond particles comprise the following components in percentage by weight: 60% diamond-2140-40/45; 40% diamond-2120-45/50.

Preferably, the diamond tool is subjected to hot-pressing sintering molding at the temperature of 800-850 ℃, and the hardness of the tool bit part of the diamond tool after sintering molding is HRB 95.

Preferably, the maximum diameter D of the diamond tool is: d is more than or equal to 80mm and less than or equal to 100 mm.

Preferably, the iron powder comprises 1200-2000 mesh ultrafine iron powder and 250-300 mesh ordinary iron powder, wherein the ultrafine iron powder accounts for 10-20% of the total weight, and the ordinary iron powder accounts for 4-10% of the total weight.

Preferably, the alloy powder comprises the following components in percentage by weight: copper-tin alloy powder accounting for 4-8% of the total weight; iron-nickel alloy powder accounting for 6-10% of the total weight; 3-5% of ferrophosphorus alloy powder.

Preferably, the copper-tin alloy powder is copper-tin 80/20 alloy powder.

Preferably, the ferrophosphorus alloy powder is 1000-1500-mesh ultrafine ferrophosphorus alloy powder.

Preferably, the matrix powder of the tool bit part comprises the following components in percentage by weight:

21.7 percent of cobalt;

33.6 percent of copper;

6% of tin;

14.5 percent of superfine iron powder;

6 percent of common iron powder;

6% of copper-tin alloy powder;

8% of iron-nickel alloy powder;

3% of ferrophosphorus alloy powder;

1.2% of carbon particles.

Preferably, the matrix part comprises the following components in percentage by weight:

38% of copper;

7% of tin;

20% of superfine iron powder;

12% of common iron powder;

6% of copper-tin alloy powder;

12% of iron-nickel alloy powder;

5 percent of ferrophosphorus alloy powder.

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

the diamond tool provided by the invention has the advantages that the hardness of the sintered and molded tool bit part can reach HRB95 by means of formula adjustment, so that the diamond tool can be effectively suitable for mining operation of high-strength rock, the operation efficiency is improved, and the operation cost is reduced.

Detailed Description

The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all 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.

Example 1

A diamond tool suitable for high-strength rock mining comprises a base body part and a cutter head part which are formed by hot-pressing sintering; wherein

The matrix part comprises the following components in percentage by weight:

38% of copper;

7% of tin;

20% of superfine iron powder;

12% of common iron powder;

6% of copper-tin alloy powder;

12% of iron-nickel alloy powder;

5 percent of ferrophosphorus alloy powder.

The cutter head part comprises diamond particles and matrix powder;

the volume concentration of the diamond particles is 12 percent, and the diamond particles comprise the following components in percentage by weight:

60% diamond-2140-40/45;

40% diamond-2120-45/50.

The matrix powder comprises the following components in percentage by weight:

20% of cobalt;

30% of copper;

5% of tin;

20 percent of 1300-mesh superfine iron powder;

4 percent of 300-mesh common iron powder;

4% of copper-tin 80/20 alloy powder;

10% of iron-nickel alloy powder;

4 percent of 1500-mesh superfine ferrophosphorus alloy powder;

3% of carbon particles.

In this example, the method for manufacturing the diamond tool according to the above formula is as follows:

preparing materials: weighing the raw materials according to the formula;

hot-pressing preforming: adding phenolic resin with the volume ratio of 12 percent, and hot-pressing for 5 minutes at the temperature of 180 ℃ according to the formula, thereby respectively realizing the hot-pressing sheeting of the basal body part and the cutter head part;

hot-pressing sintering and forming: and sequentially placing the base part and the cutter head part in a hot-pressing die, and hot-pressing and sintering the base part and the cutter head part into a whole at 850 ℃ to obtain the diamond tool with the hardness of HRB95 of the cutter head part.

In this example, the maximum diameter D of the diamond tool produced was 80 mm.

Example 2

A diamond tool suitable for high-strength rock mining comprises a base body part and a cutter head part which are formed by hot-pressing sintering; wherein

The matrix part comprises the following components in percentage by weight:

38% of copper;

7% of tin;

20% of superfine iron powder;

12% of common iron powder;

6% of copper-tin alloy powder;

12% of iron-nickel alloy powder;

5 percent of ferrophosphorus alloy powder.

The cutter head part comprises diamond particles and matrix powder;

the volume concentration of the diamond particles is 12 percent, and the diamond particles comprise the following components in percentage by weight:

60% diamond-2140-40/45;

40% diamond-2120-45/50.

The matrix powder comprises the following components in percentage by weight:

21.7 percent of cobalt;

33.6 percent of copper;

6% of tin;

2000 mesh superfine iron powder 14.5%;

6 percent of 300-mesh common iron powder;

6% of copper-tin 80/20 alloy powder;

8% of iron-nickel alloy powder;

3 percent of 1500-mesh superfine ferrophosphorus alloy powder;

1.2% of carbon particles.

In this example, the method for manufacturing the diamond tool according to the above formula is as follows:

preparing materials: weighing the raw materials according to the formula;

hot-pressing preforming: adding phenolic resin with the volume ratio of 12 percent, and hot-pressing for 5 minutes at the temperature of 180 ℃ according to the formula, thereby respectively realizing the hot-pressing sheeting of the basal body part and the cutter head part;

hot-pressing sintering and forming: and sequentially placing the base part and the cutter head part in a hot-pressing die, and hot-pressing and sintering the base part and the cutter head part into a whole at 820 ℃ to obtain the diamond tool with the hardness of HRB95 of the cutter head part.

In this example, the maximum diameter D of the diamond tool produced was 100 mm.

Example 3

A diamond tool suitable for high-strength rock mining comprises a base body part and a cutter head part which are formed by hot-pressing sintering; wherein

The matrix part comprises the following components in percentage by weight:

38% of copper;

7% of tin;

20% of superfine iron powder;

12% of common iron powder;

6% of copper-tin alloy powder;

12% of iron-nickel alloy powder;

5 percent of ferrophosphorus alloy powder.

The cutter head part comprises diamond particles and matrix powder; the volume concentration of the diamond particles is 12 percent; the matrix powder comprises the following components in percentage by weight:

the matrix powder comprises the following components in percentage by weight:

23% of cobalt;

35% of copper;

7% of tin;

1300 meshes of superfine iron powder 12 percent;

7 percent of 300-mesh common iron powder;

5% of copper-tin 80/20 alloy powder;

7% of iron-nickel alloy powder;

3 percent of 1500-mesh superfine ferrophosphorus alloy powder;

1% of carbon particles.

In this example, the method for manufacturing the diamond tool according to the above formula is as follows:

preparing materials: weighing the raw materials according to the formula;

hot-pressing preforming: adding phenolic resin with the volume ratio of 12 percent, and hot-pressing for 5 minutes at the temperature of 180 ℃ according to the formula, thereby respectively realizing the hot-pressing sheeting of the basal body part and the cutter head part;

hot-pressing sintering and forming: and sequentially placing the base part and the cutter head part in a hot-pressing die, and hot-pressing and sintering the base part and the cutter head part into a whole at the temperature of 800 ℃ to obtain the diamond tool with the hardness of HRB95 of the cutter head part.

In this example, the maximum diameter D of the diamond tool produced was 90 mm.

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.