CN111809092A - Hard alloy extrusion die material and preparation method thereof - Google Patents
Hard alloy extrusion die material and preparation method thereof Download PDFInfo
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- CN111809092A CN111809092A CN202010701411.9A CN202010701411A CN111809092A CN 111809092 A CN111809092 A CN 111809092A CN 202010701411 A CN202010701411 A CN 202010701411A CN 111809092 A CN111809092 A CN 111809092A
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- extrusion die
- hard alloy
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
- C22C29/02—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides
- C22C29/06—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
- C22C29/08—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C25/00—Profiling tools for metal extruding
- B21C25/02—Dies
- B21C25/025—Selection of materials therefor
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/05—Mixtures of metal powder with non-metallic powder
- C22C1/051—Making hard metals based on borides, carbides, nitrides, oxides or silicides; Preparation of the powder mixture used as the starting material therefor
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
- C22C29/02—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides
- C22C29/06—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
- C22C29/067—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds comprising a particular metallic binder
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- 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
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
- B22F2998/10—Processes characterised by the sequence of their steps
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention discloses a hard alloy extrusion die material and a preparation method thereof, wherein the hard alloy extrusion die material comprises the following raw materials in parts by weight: tungsten carbide WC: 70-80 parts, cobalt Co: 10-20 parts of nickel Ni: 2-4 parts, rhenium Re: 0.2-1%, beryllium Be: 1-3 parts of strontium Sr, 0.8-1.5 parts of ytterbium Yb, and according to a set proportion, putting tungsten carbide WC, cobalt, nickel Ni, rhenium Re, beryllium Be, strontium Sr and ytterbium Yb into a rolling ball mill, adding a wet grinding medium and a forming agent, and carrying out ball milling for 15-20 hours; drying and granulating the slurry after wet grinding by using a spray tower, wherein the spray pressure is 2-3 MPa; and (3) carrying out compression molding on the dried alloy powder, putting the alloy powder into a low-pressure sintering furnace with the pressure of 1-6 MPa, keeping the temperature of 1260-1350 ℃ for 30-60 min, and cooling the sintering furnace to room temperature to obtain a finished product of the hard alloy die material. The material prepared by the invention has better wear resistance, corrosion resistance and oxidation resistance, and has high strength and long service life.
Description
Technical Field
The invention belongs to the technical field of hard alloy, and particularly relates to a hard alloy extrusion die material and a preparation method thereof.
Background
Cemented carbide is an alloy material made from a hard compound of refractory metals and a binder metal by a powder metallurgy process. The hard alloy has a series of excellent performances of high hardness, wear resistance, good strength and toughness, heat resistance, corrosion resistance and the like, particularly high hardness and wear resistance, basically keeps unchanged even at the temperature of 500 ℃, and still has high hardness at the temperature of 1000 ℃. Cemented carbide is widely used as a tool material, such as turning tools, milling cutters, planing tools, drill bits, boring tools and the like, for cutting cast iron, nonferrous metals, plastics, chemical fibers, graphite, glass, stone and common steel, and also for cutting refractory steel, stainless steel, high manganese steel, tool steel and other materials which are difficult to process.
Due to the high strength and high hardness of the hard alloy, the hard alloy is prepared into an extrusion die, namely a hard alloy extrusion die. However, although the existing hard alloy extrusion die has higher hardness compared with the common die, the existing die performance still cannot meet the use requirement for some titanium alloy parts and application accessories in aviation places.
Disclosure of Invention
In order to solve the technical problems, the invention provides a hard alloy extrusion die material and a preparation method thereof.
In order to solve the technical problems, the invention adopts the following technical scheme:
the hard alloy extrusion die material comprises the following raw materials in parts by weight:
tungsten carbide WC: 70-80 parts, cobalt Co: 10-20 parts of nickel Ni: 2-4 parts, rhenium Re: 0.2-1%, beryllium Be: 1-3 parts of strontium Sr0.8-1.5 parts of ytterbium Yb 0.5-1.5 parts of strontium bismuth yttrium aluminum.
The material comprises the following raw materials in parts by weight:
tungsten carbide WC: 75 parts, cobalt Co: 15 parts, nickel Ni: 3 parts, rhenium Re: 0.7%, beryllium Be: 2 portions, 1.1 portions of strontium Sr and 1.2 portions of ytterbium Yb.
A preparation method of a hard alloy extrusion die material comprises the following steps:
according to a set proportion, putting tungsten carbide WC, cobalt, nickel Ni, rhenium Re, beryllium Be, strontium Sr and ytterbium Yb into a rolling ball mill, adding a wet grinding medium and a forming agent, and carrying out ball milling for 15-20 hours;
drying and granulating the slurry after wet grinding by using a spray tower, wherein the spray pressure is 2-3 MPa;
and (3) carrying out compression molding on the dried alloy powder, putting the alloy powder into a low-pressure sintering furnace with the pressure of 1-6 MPa, keeping the temperature of 1260-1350 ℃ for 30-60 min, and cooling the sintering furnace to room temperature to obtain a finished product of the hard alloy die material.
The wet grinding balls are hard alloy balls, the diameter of each wet grinding ball is 5-8 mm, and the mass ratio of the wet grinding balls to the mixture is 1.2: 1.
the particle size of the tungsten carbide is 2.5-6.5 mu m.
The wet grinding medium is alcohol with the purity higher than 99.7%, and the proportion of the wet grinding medium to the mixture is 1L: 2 kg.
In the cooling process, the steel plate is uniformly cooled to 1000-1200 ℃ at a first speed, then cooled to below 80 ℃ at a second speed, then heated to 700-1000 ℃ for annealing, and then cooled to room temperature, wherein the second speed is more than 2 times of the first speed.
The material prepared by the invention has better wear resistance, corrosion resistance and oxidation resistance, and has high strength and long service life.
Detailed Description
The present invention will be described in further detail with reference to specific embodiments in order to further understand the features and technical means of the invention and achieve specific objects and functions.
Example one
A preparation method of a hard alloy extrusion die material comprises the following steps:
according to the set proportion, mixing tungsten carbide WC: 70 parts, cobalt Co: 10 parts, nickel Ni: 2 parts, rhenium Re: 0.2 part, beryllium Be: 1 part of strontium Sr0.8 part of ytterbium Yb and 0.5 part of ytterbium Yb are put into a rolling ball mill, and a wet grinding medium and a forming agent are added for ball milling for 15 hours.
Drying and granulating the slurry after wet grinding by using a spray tower, wherein the spray pressure is 2 MPa.
And (3) carrying out compression molding on the dried alloy powder, putting the alloy powder into a 1MPa low-pressure sintering furnace, keeping the temperature at 1260 ℃ for 30min, and cooling the sintering furnace to room temperature to obtain a finished product of the hard alloy die material.
The wet grinding balls are hard alloy balls with the diameter of 5mm, and the mass ratio of the wet grinding balls to the mixture is 1.2: 1.
the particle size of the tungsten carbide is 2.5 μm.
The wet grinding medium is alcohol with the purity higher than 99.7%, and the proportion of the wet grinding medium to the mixture is 1L: 2 kg.
In the cooling process, the steel plate is uniformly cooled to 1000 ℃ at a first speed, then cooled to 80 ℃ at a second speed, then heated to 700 ℃ for annealing, and then cooled to room temperature, wherein the second speed is 2.5 times of the first speed.
Example two
A preparation method of a hard alloy extrusion die material comprises the following steps:
according to the set proportion, mixing tungsten carbide WC: 75 parts, cobalt Co: 15 parts, nickel Ni: 3 parts, rhenium Re: 0.7%, beryllium Be: 2 parts of strontium Sr1.1 parts and 1.2 parts of ytterbium Yb are put into a rolling ball mill, and a wet grinding medium and a forming agent are added for ball milling for 17 hours.
Drying and granulating the slurry after wet grinding by using a spray tower, wherein the spray pressure is 2 MPa.
And (3) carrying out compression molding on the dried alloy powder, putting the alloy powder into a 4MPa low-pressure sintering furnace, keeping the temperature at 1300 ℃ for 40min, and cooling the sintering furnace to room temperature to obtain a finished product of the hard alloy die material.
The wet grinding balls are hard alloy balls with the diameter of 7mm, and the mass ratio of the wet grinding balls to the mixture is 1.2: 1.
the particle size of the tungsten carbide is 5 μm.
The wet grinding medium is alcohol with the purity higher than 99.7%, and the proportion of the wet grinding medium to the mixture is 1L: 2 kg.
In the cooling process, the steel is uniformly cooled to 1100 ℃ at a first speed, then cooled to 70 ℃ at a second speed, then heated to anneal at 800 ℃, and then cooled to room temperature, wherein the second speed is 3 times of the first speed.
EXAMPLE III
A preparation method of a hard alloy extrusion die material comprises the following steps:
according to the set proportion, mixing tungsten carbide WC: 75 parts, cobalt Co: 15 parts, nickel Ni: 3 parts, rhenium Re: 0.7%, beryllium Be: 2 parts of strontium Sr1.1 parts and 1.2 parts of ytterbium Yb are put into a rolling ball mill, and a wet grinding medium and a forming agent are added for ball milling for 20 hours.
Drying and granulating the slurry after wet grinding by using a spray tower, wherein the spray pressure is 2 MPa.
And (3) carrying out compression molding on the dried alloy powder, putting the alloy powder into a 6MPa low-pressure sintering furnace, keeping the temperature of the furnace at 1350 ℃ for 60min, and cooling the furnace to room temperature to obtain a finished product of the hard alloy die material.
The wet grinding balls are hard alloy balls with the diameter of 8mm, and the mass ratio of the wet grinding balls to the mixture is 1.2: 1.
the particle size of the tungsten carbide is 6 μm.
The wet grinding medium is alcohol with the purity higher than 99.7%, and the proportion of the wet grinding medium to the mixture is 1L: 2 kg.
In the cooling process, the steel is uniformly cooled to 1200 ℃ at a first speed, then cooled to 75 ℃ at a second speed, then heated to anneal at 1000 ℃, and then cooled to room temperature, wherein the second speed is 4 times of the first speed.
Although the present invention has been described in detail with reference to the embodiments, it will be apparent to those skilled in the art that modifications, equivalents, improvements, and the like can be made in the technical solutions of the foregoing embodiments or in some of the technical features of the foregoing embodiments, but those modifications, equivalents, improvements, and the like are all within the spirit and principle of the present invention.
Claims (7)
1. The hard alloy extrusion die material is characterized by comprising the following raw materials in parts by weight:
tungsten carbide WC: 70-80 parts, cobalt Co: 10-20 parts of nickel Ni: 2-4 parts, rhenium Re: 0.2-1%, beryllium Be: 1-3 parts of strontium Sr0.8-1.5 parts of ytterbium Yb 0.5-1.5 parts of strontium bismuth yttrium aluminum.
2. The cemented carbide extrusion die material of claim 1, wherein the material comprises the following raw materials in parts by weight:
tungsten carbide WC: 75 parts, cobalt Co: 15 parts, nickel Ni: 3 parts, rhenium Re: 0.7%, beryllium Be: 2 portions, 1.1 portions of strontium Sr and 1.2 portions of ytterbium Yb.
3. A method for preparing a cemented carbide extrusion die material according to claim 1 or 2, characterized by the steps of:
according to a set proportion, putting tungsten carbide WC, cobalt, nickel Ni, rhenium Re, beryllium Be, strontium Sr and ytterbium Yb into a rolling ball mill, adding a wet grinding medium and a forming agent, and carrying out ball milling for 15-20 hours;
drying and granulating the slurry after wet grinding by using a spray tower, wherein the spray pressure is 2-3 MPa;
and (3) carrying out compression molding on the dried alloy powder, putting the alloy powder into a low-pressure sintering furnace with the pressure of 1-6 MPa, keeping the temperature of 1260-1350 ℃ for 30-60 min, and cooling the sintering furnace to room temperature to obtain a finished product of the hard alloy die material.
4. The preparation method of the hard alloy extrusion die material according to claim 3, wherein the wet grinding balls are hard alloy balls, the diameter of the wet grinding balls is 5-8 mm, and the mass ratio of the wet grinding balls to the mixture is 1.2: 1.
5. the method for preparing the cemented carbide extrusion die material according to claim 4, wherein the particle size of the tungsten carbide is 2.5-6.5 μm.
6. The method for preparing a cemented carbide extrusion die material according to claim 3, wherein the wet milling medium is alcohol with a purity higher than 99.7%, and the ratio of wet milling medium to mix is 1L: 2 kg.
7. The method for preparing the hard alloy extrusion die material according to claim 6, wherein in the cooling process, the first speed is used for uniformly cooling the material to 1000-1200 ℃, then the second speed is used for cooling the material to below 80 ℃, then the temperature is raised for annealing at 700-1000 ℃, and then the material is cooled to room temperature, wherein the second speed is more than 2 times of the first speed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010701411.9A CN111809092A (en) | 2020-07-21 | 2020-07-21 | Hard alloy extrusion die material and preparation method thereof |
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| CN202010701411.9A CN111809092A (en) | 2020-07-21 | 2020-07-21 | Hard alloy extrusion die material and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115074592A (en) * | 2022-06-28 | 2022-09-20 | 河源正信硬质合金有限公司 | High-temperature-resistant high-toughness hard alloy material for die and preparation method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000328170A (en) * | 1999-05-20 | 2000-11-28 | Sumitomo Electric Ind Ltd | Cubic boron nitride-containing hard member and its production |
| CN1592795A (en) * | 2003-01-13 | 2005-03-09 | 杰出金属实业公司 | Compositions and fabrication methods for hardmetals |
| CN105950936A (en) * | 2016-05-05 | 2016-09-21 | 苏州新锐合金工具股份有限公司 | Hard alloy mold material for titanium alloy fastener formed through warm forging and preparation method of hard alloy mold material |
| CN107475548A (en) * | 2017-06-28 | 2017-12-15 | 沈阳寰博磁电科技有限公司 | A kind of preparation method of nanometer of toughness reinforcing Ultra-fine Grained WC Co hard alloy |
| CN108642400A (en) * | 2018-05-24 | 2018-10-12 | 合肥汇之新机械科技有限公司 | A kind of high-performance carbide mold materials and preparation method thereof |
| EP2347024B1 (en) * | 2008-09-15 | 2020-01-15 | Element Six GmbH | A hard-metal |
| CN111286661A (en) * | 2020-02-28 | 2020-06-16 | 赣州澳克泰工具技术有限公司 | High-temperature alloy machining tool and application thereof |
-
2020
- 2020-07-21 CN CN202010701411.9A patent/CN111809092A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000328170A (en) * | 1999-05-20 | 2000-11-28 | Sumitomo Electric Ind Ltd | Cubic boron nitride-containing hard member and its production |
| CN1592795A (en) * | 2003-01-13 | 2005-03-09 | 杰出金属实业公司 | Compositions and fabrication methods for hardmetals |
| EP2347024B1 (en) * | 2008-09-15 | 2020-01-15 | Element Six GmbH | A hard-metal |
| CN105950936A (en) * | 2016-05-05 | 2016-09-21 | 苏州新锐合金工具股份有限公司 | Hard alloy mold material for titanium alloy fastener formed through warm forging and preparation method of hard alloy mold material |
| CN107475548A (en) * | 2017-06-28 | 2017-12-15 | 沈阳寰博磁电科技有限公司 | A kind of preparation method of nanometer of toughness reinforcing Ultra-fine Grained WC Co hard alloy |
| CN108642400A (en) * | 2018-05-24 | 2018-10-12 | 合肥汇之新机械科技有限公司 | A kind of high-performance carbide mold materials and preparation method thereof |
| CN111286661A (en) * | 2020-02-28 | 2020-06-16 | 赣州澳克泰工具技术有限公司 | High-temperature alloy machining tool and application thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115074592A (en) * | 2022-06-28 | 2022-09-20 | 河源正信硬质合金有限公司 | High-temperature-resistant high-toughness hard alloy material for die and preparation method thereof |
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