CN114226718A - Diamond oilstone and preparation method thereof - Google Patents
Diamond oilstone and preparation method thereof Download PDFInfo
- Publication number
- CN114226718A CN114226718A CN202111303973.9A CN202111303973A CN114226718A CN 114226718 A CN114226718 A CN 114226718A CN 202111303973 A CN202111303973 A CN 202111303973A CN 114226718 A CN114226718 A CN 114226718A
- Authority
- CN
- China
- Prior art keywords
- powder
- diamond
- oilstone
- tungsten carbide
- carbonyl iron
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229910003460 diamond Inorganic materials 0.000 title claims abstract description 76
- 239000010432 diamond Substances 0.000 title claims abstract description 76
- 238000002360 preparation method Methods 0.000 title abstract description 9
- 239000000843 powder Substances 0.000 claims abstract description 32
- 238000000227 grinding Methods 0.000 claims abstract description 25
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 20
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 19
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 19
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 19
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 claims abstract description 19
- 238000010438 heat treatment Methods 0.000 claims abstract description 11
- 238000004519 manufacturing process Methods 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 16
- 238000001816 cooling Methods 0.000 claims description 14
- 238000003756 stirring Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000009864 tensile test Methods 0.000 description 3
- 241001391944 Commicarpus scandens Species 0.000 description 2
- 239000003082 abrasive agent Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004482 other powder Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000010583 slow cooling Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/02—Compacting only
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D18/00—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for
- B24D18/0009—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for using moulds or presses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
- B24D3/02—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent
- B24D3/04—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic
- B24D3/06—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic metallic or mixture of metals with ceramic materials, e.g. hard metals, "cermets", cements
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C26/00—Alloys containing diamond or cubic or wurtzitic boron nitride, fullerenes or carbon nanotubes
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C30/00—Alloys containing less than 50% by weight of each constituent
- C22C30/02—Alloys containing less than 50% by weight of each constituent containing copper
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C30/00—Alloys containing less than 50% by weight of each constituent
- C22C30/04—Alloys containing less than 50% by weight of each constituent containing tin or lead
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
The invention provides a diamond oilstone and a preparation method thereof. The diamond oilstone comprises the following components in parts by mass: 40-45% of copper powder, 5-10% of tin powder, 2-4% of silver powder, 25-35% of carbonyl iron powder, 5-10% of tungsten carbide powder and 5-15% of diamond abrasive. The invention has the beneficial effects that: the diamond oilstone is simple in manufacturing process, can be prepared by a simple die and heating equipment, has the advantages of high strength of more than 70MPa, high toughness, wear resistance, impact resistance and difficulty in breaking, can contact the ground surface with larger positive pressure, and is good in grinding performance and high in efficiency.
Description
Technical Field
The invention relates to the field of grinding tools and abrasives, in particular to a diamond oilstone and a preparation method thereof.
Background
Honing technology has been widely used in inner bore processing scenes such as grinding, polishing, etc., and when used for grinding, there are often higher requirements on strength, durability, grinding performance, etc. of oilstone.
For example, the bolt holes of the shafting coupler of the steam turbine generator unit and the mounting bolts go to the site where the size of the shaft coupler needs to be matched and the dislocation quantity needs to be eliminated, and the strength, hardness and toughness of the coupler are high. The traditional oilstone has low strength and high brittleness, is easy to break when the grinding positive pressure is high or the dislocation hole is ground, and has low grinding efficiency. Therefore, a oilstone with certain strength and toughness is needed, so that the oilstone can be ground under a large positive pressure and can bear certain impact; meanwhile, certain grinding efficiency is required to be ensured.
In view of this, we propose a diamond oilstone scheme and a method for making the same.
Disclosure of Invention
In order to solve the technical problems, the invention discloses a diamond oilstone and a preparation method thereof, and the technical scheme of the invention is implemented as follows:
a diamond oilstone comprises the following components in parts by mass:
40-45% of copper powder, 5-10% of tin powder, 2-4% of silver powder, 25-35% of carbonyl iron powder, 5-10% of tungsten carbide powder and 5-15% of diamond abrasive.
Preferably, the diamond oilstone comprises the following components in parts by mass: 40% of copper powder, 8% of tin powder, 2% of silver powder, 30% of carbonyl iron powder, 10% of tungsten carbide powder and 10% of diamond grinding material.
Preferably, the diamond oilstone comprises the following components in parts by mass: 44% of copper powder, 10% of tin powder, 2% of silver powder, 34% of carbonyl iron powder, 5% of tungsten carbide powder and 5% of diamond grinding material.
Preferably, the diamond oilstone comprises the following components in parts by mass: 40% of copper powder, 5% of tin powder, 2% of silver powder, 35% of carbonyl iron powder, 8% of tungsten carbide powder and 10% of diamond grinding material.
A method of making diamond whetstone comprising the steps of:
firstly, adding copper powder, tin powder, silver powder, carbonyl iron powder, tungsten carbide powder and diamond grinding materials into a stirrer according to the composition and mass ratio, and stirring for 1.5-2.5 hours to prepare diamond oilstone powder;
secondly, injecting a proper amount of diamond oilstone powder into the mold;
thirdly, preheating the mould to 600-650 ℃, and preserving heat for 5-10 minutes;
fourthly, completely heating the mould to 750-800 ℃, preserving heat for 5-10 minutes, and pressing the diamond oilstone into the required shape and size by means of the mould;
fifthly, air cooling to 500-550 ℃, and then air cooling to room temperature;
and sixthly, disassembling the die to obtain the diamond oilstone.
Preferably, the first step stirring time is 2 hours.
Preferably, the preheating temperature of the third step is 600 ℃ and the holding time is 10 minutes.
Preferably, the heating temperature of the fourth step is 800 ℃, and the holding time is 10 minutes.
Preferably, the fifth step is air-cooled to 500 ℃ and then air-cooled to room temperature.
Compared with the prior art, the invention has the beneficial effects that: the diamond oilstone is simple in manufacturing process, can be prepared by a simple die and heating equipment, has the advantages of high strength of more than 70MPa, high toughness, wear resistance, impact resistance, difficulty in breaking, capability of contacting the ground surface with larger positive pressure, good grinding performance and high efficiency.
Drawings
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.
A diamond oilstone comprises the following components in parts by mass:
40-45% of copper powder, 5-10% of tin powder, 2-4% of silver powder, 25-35% of carbonyl iron powder, 5-10% of tungsten carbide powder and 5-15% of diamond abrasive.
The preparation method comprises the following steps:
firstly, adding copper powder, tin powder, silver powder, carbonyl iron powder, tungsten carbide powder and diamond grinding materials into a stirrer according to the composition and mass ratio, and stirring for 1.5-2.5 hours to prepare diamond oilstone powder;
secondly, injecting a proper amount of diamond oilstone powder into the mold;
thirdly, preheating the mould to 600-650 ℃, and preserving heat for 5-10 minutes; preheating and heat preservation can fully melt the low-melting point tin powder, so that the heated diamond oilstone powder has certain fluidity;
fourthly, completely heating the mould to 750-800 ℃, preserving heat for 5-10 minutes, and pressing the diamond oilstone into the required shape and size by means of the mould; heating and pressurizing simultaneously, so that the molten metal can be fully contacted and bonded with other powder materials, and the tissue uniformity and higher strength of the diamond oilstone are ensured;
fifthly, air cooling to 500-550 ℃, and then air cooling to room temperature; the natural cooling in the air in the early stage can avoid the mechanical property inconformity caused by too fast or too slow cooling, and the air cooling in the later stage is used for improving the working efficiency.
And sixthly, disassembling the die to obtain the diamond oilstone.
The traditional diamond whetstone with the strength of more than 60MPa is high-quality, while the diamond whetstone with the strength of more than 70MPa is improved in the invention, has good toughness, can contact the ground surface with larger positive pressure, has good grinding performance, is wear-resistant and impact-resistant, is not easy to break up, and has high efficiency.
Based on this technique, the present invention is explained in three embodiments.
Example 1
In a specific embodiment 1, a diamond oilstone comprises the following components in parts by mass: 40% of copper powder, 8% of tin powder, 2% of silver powder, 30% of carbonyl iron powder, 10% of tungsten carbide powder and 10% of diamond grinding material.
The preparation method comprises the following steps:
firstly, adding 40% of copper powder, 8% of tin powder, 2% of silver powder, 30% of carbonyl iron powder, 10% of tungsten carbide powder and 10% of diamond grinding material into a closed stirrer, and stirring for about 2 hours to prepare diamond oilstone powder;
secondly, injecting a proper amount of diamond oilstone powder into the mold;
thirdly, preheating the mould to about 600 ℃, and keeping the temperature for about 10 minutes;
completely heating the mold to about 800 ℃, preserving the heat for about 10 minutes, and pressing the diamond oilstone into the required shape and size by means of the mold;
fifthly, air cooling to 500 ℃, and then air cooling to room temperature;
and sixthly, disassembling the die to obtain the diamond oilstone.
The diamond whetstone obtained in example 1 had a strength of 71.3MPa as measured by a tensile test.
Example 2
In a specific embodiment 2, a diamond oilstone comprises the following components in parts by mass: 44% of copper powder, 10% of tin powder, 2% of silver powder, 34% of carbonyl iron powder, 5% of tungsten carbide powder and 5% of diamond grinding material.
The preparation method comprises the following steps:
firstly, adding 44% of copper powder, 10% of tin powder, 2% of silver powder, 34% of carbonyl iron powder, 5% of tungsten carbide powder and 5% of diamond grinding material into a closed stirrer, and stirring for about 2 hours to prepare diamond oilstone powder;
secondly, injecting a proper amount of diamond oilstone powder into the mold;
thirdly, preheating the mould to about 600 ℃, and keeping the temperature for about 10 minutes;
completely heating the mold to about 800 ℃, preserving the heat for about 10 minutes, and pressing the diamond oilstone into the required shape and size by means of the mold;
fifthly, air cooling to 500 ℃, and then air cooling to room temperature;
and sixthly, disassembling the die to obtain the diamond oilstone.
The diamond whetstone obtained in example 2 had a strength of 75.4MPa as measured by a tensile test.
Example 3
In a specific embodiment 3, a diamond oilstone comprises the following components in parts by mass: 40% of copper powder, 5% of tin powder, 2% of silver powder, 35% of carbonyl iron powder, 8% of tungsten carbide powder and 10% of diamond grinding material.
The preparation method comprises the following steps:
firstly, adding 40% of copper powder, 5% of tin powder, 2% of silver powder, 35% of carbonyl iron powder, 8% of tungsten carbide powder and 10% of diamond grinding material into a closed stirrer, and stirring for about 2 hours to prepare diamond oilstone powder;
secondly, injecting a proper amount of diamond oilstone powder into the mold;
thirdly, preheating the mould to about 600 ℃, and keeping the temperature for about 10 minutes;
completely heating the mold to about 800 ℃, preserving the heat for about 10 minutes, and pressing the diamond oilstone into the required shape and size by means of the mold;
fifthly, air cooling to 500 ℃, and then air cooling to room temperature;
and sixthly, disassembling the die to obtain the diamond oilstone.
The diamond whetstone obtained in example 3 had a strength of 71.6MPa as measured by a tensile test.
It should be understood that the above description is only exemplary of the present invention, and is not intended to limit the present invention, and that any modifications, equivalents, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (9)
1. The diamond oilstone is characterized by comprising the following components in parts by mass:
40-45% of copper powder, 5-10% of tin powder, 2-4% of silver powder, 25-35% of carbonyl iron powder, 5-10% of tungsten carbide powder and 5-15% of diamond abrasive.
2. The diamond oilstone as recited in claim 1, wherein the diamond oilstone comprises the following components in parts by mass: 40% of copper powder, 8% of tin powder, 2% of silver powder, 30% of carbonyl iron powder, 10% of tungsten carbide powder and 10% of diamond grinding material.
3. The diamond oilstone as recited in claim 1, wherein the diamond oilstone comprises the following components in parts by mass: 44% of copper powder, 10% of tin powder, 2% of silver powder, 34% of carbonyl iron powder, 5% of tungsten carbide powder and 5% of diamond grinding material.
4. The diamond oilstone as recited in claim 1, wherein the diamond oilstone comprises the following components in parts by mass: 40% of copper powder, 5% of tin powder, 2% of silver powder, 35% of carbonyl iron powder, 8% of tungsten carbide powder and 10% of diamond grinding material.
5. A method of making a diamond whetstone according to any one of claims 1 to 4, comprising the steps of:
firstly, adding copper powder, tin powder, silver powder, carbonyl iron powder, tungsten carbide powder and diamond grinding materials into a stirrer according to the composition and mass ratio, and stirring for 1.5-2.5 hours to prepare diamond oilstone powder;
secondly, injecting a proper amount of diamond oilstone powder into the mold;
thirdly, preheating the mould to 600-650 ℃, and preserving heat for 5-10 minutes;
fourthly, completely heating the mould to 750-800 ℃, preserving heat for 5-10 minutes, and pressing the diamond oilstone into the required shape and size by means of the mould;
fifthly, air cooling to 500-550 ℃, and then air cooling to room temperature;
and sixthly, disassembling the die to obtain the diamond oilstone.
6. The method of claim 5, wherein the first step stirring time is 2 hours.
7. The method according to claim 5, wherein the third preheating step is carried out at a temperature of 600 ℃ and a holding time of 10 minutes.
8. The method of claim 5, wherein the fourth step is carried out at a heating temperature of 800 ℃ for a holding time of 10 minutes.
9. The method of claim 5, wherein the fifth step is air cooled to 500 ℃ and then to room temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111303973.9A CN114226718A (en) | 2021-11-05 | 2021-11-05 | Diamond oilstone and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111303973.9A CN114226718A (en) | 2021-11-05 | 2021-11-05 | Diamond oilstone and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
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| CN114226718A true CN114226718A (en) | 2022-03-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN202111303973.9A Pending CN114226718A (en) | 2021-11-05 | 2021-11-05 | Diamond oilstone and preparation method thereof |
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