CN114669902A - High-speed steel tool steel and tungsten steel efficient heating fusion method - Google Patents
High-speed steel tool steel and tungsten steel efficient heating fusion method Download PDFInfo
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- CN114669902A CN114669902A CN202210399856.5A CN202210399856A CN114669902A CN 114669902 A CN114669902 A CN 114669902A CN 202210399856 A CN202210399856 A CN 202210399856A CN 114669902 A CN114669902 A CN 114669902A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 112
- 239000010959 steel Substances 0.000 title claims abstract description 112
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 title claims abstract description 112
- 229910052721 tungsten Inorganic materials 0.000 title claims abstract description 112
- 239000010937 tungsten Substances 0.000 title claims abstract description 112
- 229910001315 Tool steel Inorganic materials 0.000 title claims abstract description 89
- 229910000997 High-speed steel Inorganic materials 0.000 title claims abstract description 88
- 238000010438 heat treatment Methods 0.000 title claims abstract description 34
- 238000007500 overflow downdraw method Methods 0.000 title claims abstract description 13
- 238000001816 cooling Methods 0.000 claims abstract description 21
- 239000011265 semifinished product Substances 0.000 claims abstract description 19
- 239000000047 product Substances 0.000 claims abstract description 14
- 229910052751 metal Inorganic materials 0.000 claims abstract description 10
- 239000002184 metal Substances 0.000 claims abstract description 10
- 150000002739 metals Chemical class 0.000 claims abstract description 8
- 238000005245 sintering Methods 0.000 claims abstract description 7
- 239000002994 raw material Substances 0.000 claims description 23
- 230000005496 eutectics Effects 0.000 claims description 18
- 238000002485 combustion reaction Methods 0.000 claims description 14
- 239000010941 cobalt Substances 0.000 claims description 11
- 229910017052 cobalt Inorganic materials 0.000 claims description 11
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 11
- 238000004321 preservation Methods 0.000 claims description 10
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 9
- 239000005457 ice water Substances 0.000 claims description 3
- 230000004927 fusion Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 239000000203 mixture Substances 0.000 description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004663 powder metallurgy Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000000641 cold extrusion Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- UNASZPQZIFZUSI-UHFFFAOYSA-N methylidyneniobium Chemical compound [Nb]#C UNASZPQZIFZUSI-UHFFFAOYSA-N 0.000 description 1
- NFFIWVVINABMKP-UHFFFAOYSA-N methylidynetantalum Chemical compound [Ta]#C NFFIWVVINABMKP-UHFFFAOYSA-N 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910003468 tantalcarbide Inorganic materials 0.000 description 1
- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
-
- 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
-
- 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
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/02—Iron or ferrous alloys
- B23K2103/04—Steel or steel alloys
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention discloses a high-efficiency heating fusion method for high-speed steel tool steel and tungsten steel, which specifically comprises the following steps: s1: sintering the tungsten steel section to obtain a tungsten steel sintered body S2: preheating the high-speed steel tool steel to obtain a semi-finished high-speed steel tool steel product S3: directly connecting the tungsten steel sintered body with the high-speed steel tool steel semi-finished product to obtain a fused body, heating the high-speed steel tool steel semi-finished product and the tungsten steel sintered body through electrons, and fusing the two metals at the temperature of 1000-1800 ℃; s4: cooling the fusion. The high-speed steel tool steel and tungsten steel efficient heating fusion method disclosed by the invention has the technical effects that the high-speed steel tool steel is further processed by a staggered heating mode, a semi-finished product of the high-speed steel tool steel and a tungsten steel sintered body are heated by electrons, the tungsten steel is not affected by high temperature, and a finished product is finally obtained after cooling.
Description
Technical Field
The invention relates to the technical field of welding, in particular to a high-speed steel tool steel and tungsten steel efficient heating fusion method.
Background
The high-speed steel tool steel has good processing property and good matching of strength and toughness, so that the high-speed steel tool steel is mainly used for manufacturing complex thin-edge and impact-resistant metal cutting tools, and can also be used for manufacturing high-temperature bearings, cold extrusion dies and the like. For tools with higher hardness requirements, the general high-speed steel tool steel cannot meet the requirements or has short service life.
Tungsten steel, also known as cemented carbide, refers to a sintered composite material comprising at least one metal carbide. Tungsten carbide, cobalt carbide, niobium carbide, titanium carbide and tantalum carbide are common components of tungsten steel. The grain size of the carbide component (or phase) is typically between 0.2 and 10 microns, and the carbide grains are bonded together using a metallic binder. The binder is typically metallic cobalt (Co), but for some particular applications, nickel (Ni), iron (Fe), or other metals and alloys may be used. The composition of the composition for a particular carbide and binder phase is referred to as the "grade".
However, the preparation process of the high-performance high-speed steel tool steel and the powder metallurgy high-speed steel tool steel is more complicated, and the high-speed steel tool steel and the tungsten steel cannot be well fused, so that the performance of the connecting part is poor, and the performance of the high-speed steel tool steel can be further influenced.
Disclosure of Invention
The invention discloses a high-efficiency heating fusion method for high-speed steel tool steel and tungsten steel, and aims to solve the technical problems that the preparation process of high-performance high-speed steel tool steel and powder metallurgy high-speed steel tool steel provided in the background art is more complicated, the high-speed steel tool steel and the tungsten steel cannot be well fused, the performance of a connecting part is poor, and the performance of the high-speed steel tool steel can be further influenced.
In order to achieve the purpose, the invention adopts the following technical scheme:
a high-efficiency heating fusion method for high-speed steel tool steel and tungsten steel specifically comprises the following steps:
s1: sintering a tungsten steel section to obtain a tungsten steel sintered body, wherein the tungsten steel raw material comprises tungsten carbide and cobalt, the tungsten steel sintered body is at a first combustion temperature, and the first combustion temperature is not higher than the eutectic temperature of the tungsten steel sintered body;
s2: preheating the high-speed steel tool steel to obtain a semi-finished high-speed steel tool steel, wherein the preheating temperature is higher than the eutectic temperature of the tungsten steel sintered body;
s3: directly connecting the tungsten steel sintered body with the high-speed steel tool steel semi-finished product to obtain a fused body, heating the high-speed steel tool steel semi-finished product and the tungsten steel sintered body through electrons, and fusing the two metals at the temperature of 1000-1800 ℃;
s4: and cooling the fused body to obtain a finished product after the high-speed steel tool steel raw material and the tungsten steel raw material are directly fused.
In a preferred embodiment, in the step of S1: the ratio of the cobalt content to the tungsten carbide content of the tungsten steel section is not lower than 5:6, after the tungsten steel sintered body is obtained, the tungsten steel sintered body is subjected to heat preservation, the heat preservation temperature is between the first combustion temperature and the eutectic temperature of the tungsten steel sintered body, the preheating temperature of preheating treatment on the high-speed steel tool steel in the step S2 is 900-950 ℃, the eutectic temperature of the tungsten steel sintered body is lower than the preheating temperature of preheating the high-speed steel tool steel, and in the step S3: and rapidly communicating the heat preservation space of the tungsten steel sintered body with the preheating space of the high-speed steel tool steel semi-finished product, obtaining the fused body after connection, naturally cooling the fused body after electronic heating and mixing to 900 ℃, and cooling by using a rapid cooling mode to obtain a finished product after the high-speed steel tool steel raw material and the tungsten steel raw material are directly fused, wherein the rapid cooling mode is an ice water bath or cold air rapid cooling mode.
From the above, the high-efficiency heating and fusing method for the high-speed steel tool steel and the tungsten steel specifically comprises the following steps:
s1: sintering a tungsten steel section to obtain a tungsten steel sintered body, wherein the tungsten steel raw material comprises tungsten carbide and cobalt, the tungsten steel sintered body is at a first combustion temperature, and the first combustion temperature is not higher than the eutectic temperature of the tungsten steel sintered body;
s2: preheating the high-speed steel tool steel to obtain a semi-finished high-speed steel tool steel product, wherein the preheating temperature is higher than the eutectic temperature of the tungsten steel sintered body;
s3: directly connecting the tungsten steel sintered body with the high-speed steel tool steel semi-finished product to obtain a fused body, heating the high-speed steel tool steel semi-finished product and the tungsten steel sintered body through electrons, and fusing the two metals at the temperature of 1000-1800 ℃;
s4: and cooling the fused body to obtain a finished product after the high-speed steel tool steel raw material and the tungsten steel raw material are directly fused. The high-speed steel tool steel and the tungsten steel efficient heating fusion method provided by the invention have the technical effects that the tungsten steel and the high-speed steel tool steel are indirectly fused, the high-speed steel tool steel is further processed in a staggered heating mode, the semi-finished product of the high-speed steel tool steel and a tungsten steel sintered body are heated by electrons, the tungsten steel is not affected by high temperature, and the finished product is finally obtained after cooling.
Drawings
FIG. 1 is a schematic view of the overall structure of the high-speed steel tool steel and tungsten steel efficient heating fusion method provided by the invention.
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.
The invention discloses a high-efficiency heating fusion method for high-speed steel tool steel and tungsten steel, which is mainly applied to a high-efficiency heating fusion scene of the high-speed steel tool steel and the tungsten steel.
Example 1:
referring to fig. 1, the high-efficiency heating and fusing method for the high-speed steel tool steel and the tungsten steel specifically comprises the following steps:
s1: sintering a tungsten steel section to obtain a tungsten steel sintered body, wherein the tungsten steel raw material comprises tungsten carbide and cobalt, the tungsten steel sintered body is at a first combustion temperature, and the first combustion temperature is not higher than the eutectic temperature of the tungsten steel sintered body;
s2: preheating the high-speed steel tool steel to obtain a semi-finished high-speed steel tool steel, wherein the preheating temperature is higher than the eutectic temperature of the tungsten steel sintered body;
s3: directly connecting the tungsten steel sintered body with the high-speed steel tool steel semi-finished product to obtain a fused body, heating the high-speed steel tool steel semi-finished product and the tungsten steel sintered body through electrons, and fusing the two metals at the temperature of 1000-1800 ℃;
s4: and cooling the fused body to obtain a finished product after the high-speed steel tool steel raw material and the tungsten steel raw material are directly fused.
In a preferred embodiment, in the step S1: the ratio of the cobalt content to the tungsten carbide content of the tungsten steel section is not less than 5: 6.
In a preferred embodiment, after the tungsten steel sintered body is obtained, the tungsten steel sintered body is subjected to heat preservation at a temperature between the first combustion temperature and a eutectic temperature of the tungsten steel sintered body.
In a preferred embodiment, the preheating temperature for preheating the high-speed steel tool steel in the step S2 is 900-950 ℃.
In a preferred embodiment, the eutectic temperature of the sintered tungsten steel is lower than the preheating temperature for preheating the high-speed steel tool steel.
In a preferred embodiment, in the step S3: and quickly communicating the heat preservation space of the tungsten steel sintered body with the preheating space of the high-speed steel tool steel semi-finished product, and obtaining the fused body after connection is completed.
In a preferred embodiment, the fused body after being heated and mixed by electrons is naturally cooled to 900 ℃, and then is cooled by a rapid cooling mode, so that a finished product after the high-speed steel tool steel raw material and the tungsten steel raw material are directly fused is obtained.
In a preferred embodiment, the rapid cooling means is an ice water bath or a rapid cooling means of cold air.
Example 2:
a high-efficiency heating fusion method for high-speed steel tool steel and tungsten steel specifically comprises the following steps:
s1: sintering the tungsten steel section and the high-speed steel tool steel to obtain a tungsten steel sintered body and a semi-finished high-speed steel tool steel mixture;
s2: heating the mixture of the tungsten steel sintered body and the semi-finished product of the high-speed steel tool steel by electrons, and fusing the two metals at the temperature of 1000-1800 ℃;
s3: cooling the fused body to obtain a finished product after the high-speed steel tool steel raw material and the tungsten steel raw material are directly fused;
by directly heating the high speed steel tool steel and tungsten steel, the resulting mixture had less favorable properties than the fusion obtained in example 1.
Example 3:
a high-efficiency heating fusion method for high-speed steel tool steel and tungsten steel specifically comprises the following steps:
s1: sintering the tungsten steel section to obtain a tungsten steel sintered body, wherein the tungsten steel raw material comprises tungsten carbide and cobalt, the tungsten steel sintered body is at a first combustion temperature, and the first combustion temperature is not higher than the eutectic temperature of the tungsten steel sintered body;
s2: preheating the high-speed steel tool steel to obtain a semi-finished high-speed steel tool steel, wherein the preheating temperature is higher than the eutectic temperature of the tungsten steel sintered body;
s3: directly connecting the tungsten steel sintered body with the high-speed steel tool steel semi-finished product to obtain a fused body, heating the high-speed steel tool steel semi-finished product and the tungsten steel sintered body through electrons, and fusing the two metals at the temperature of 1000-1800 ℃;
s4: and cooling the fused body to obtain a finished product after the high-speed steel tool steel raw material and the tungsten steel raw material are directly fused.
In a preferred embodiment, in the step of S1: the ratio of the cobalt content to the tungsten carbide content of the tungsten steel section is not lower than 5:6, after the tungsten steel sintered body is obtained, the tungsten steel sintered body is subjected to heat preservation, the heat preservation temperature is between the first combustion temperature and the eutectic temperature of the tungsten steel sintered body, the preheating temperature of preheating treatment on the high-speed steel tool steel in the step S2 is 900-950 ℃, the eutectic temperature of the tungsten steel sintered body is lower than the preheating temperature of preheating the high-speed steel tool steel, and in the step S3: and quickly communicating the heat preservation space of the tungsten steel sintered body with the preheating space of the high-speed steel tool steel semi-finished product, and obtaining the fused body after connection is completed.
The fused body after being heated and mixed by electrons is directly cooled quickly, the cooling mode is set to be a cold air blowing mode, the surface of the divided finished product is not smooth enough and rough, the fused body can cause the strength of the fused body to be not enough after being cooled quickly, cracks are easy to generate, and the performance of the high-speed steel tool steel is reduced.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. A high-efficiency heating fusion method for high-speed steel tool steel and tungsten steel is characterized by comprising the following steps:
s1: sintering a tungsten steel section to obtain a tungsten steel sintered body, wherein the tungsten steel raw material comprises tungsten carbide and cobalt, the tungsten steel sintered body is at a first combustion temperature, and the first combustion temperature is not higher than the eutectic temperature of the tungsten steel sintered body;
s2: preheating the high-speed steel tool steel to obtain a semi-finished high-speed steel tool steel, wherein the preheating temperature is higher than the eutectic temperature of the tungsten steel sintered body;
s3: directly connecting the tungsten steel sintered body with the high-speed steel tool steel semi-finished product to obtain a fused body, heating the high-speed steel tool steel semi-finished product and the tungsten steel sintered body through electrons, and fusing the two metals at the temperature of 1000-1800 ℃;
s4: and cooling the fused body to obtain a finished product after the high-speed steel tool steel raw material and the tungsten steel raw material are directly fused.
2. The high-efficiency heating and fusing method for the high-speed steel tool steel and the tungsten steel according to claim 1, wherein in the step S1: the ratio of the cobalt content to the tungsten carbide content of the tungsten steel section is not less than 5: 6.
3. The efficient heating and fusing method for the tool steel and the tungsten steel as claimed in claim 1, wherein the tungsten steel sintered body is obtained and then is subjected to heat preservation at a temperature between the first combustion temperature and the eutectic temperature of the tungsten steel sintered body.
4. The efficient heating and fusing method for high-speed steel tool steel and tungsten steel as claimed in claim 1, wherein the preheating temperature for preheating the high-speed steel tool steel in the step S2 is 900-950 ℃.
5. The method for high-efficiency heating and fusing of the high-speed steel tool steel and the tungsten steel according to claim 4, wherein the eutectic temperature of the tungsten steel sintered body is lower than the preheating temperature for preheating the high-speed steel tool steel.
6. The high-efficiency heating and fusing method for the high-speed steel tool steel and the tungsten steel according to claim 3, wherein in the step S3: and quickly communicating the heat preservation space of the tungsten steel sintered body with the preheating space of the high-speed steel tool steel semi-finished product, and obtaining the fused body after connection is completed.
7. The efficient heating and fusing method for the high-speed steel tool steel and the tungsten steel according to claim 6, characterized in that a fused body after being heated and mixed by electrons is naturally cooled to 900 ℃, and then is cooled by a rapid cooling mode, so that a finished product after the high-speed steel tool steel raw material and the tungsten steel raw material are directly fused is obtained.
8. The efficient heating and fusing method for the high-speed steel tool steel and the tungsten steel as claimed in claim 7, wherein the rapid cooling mode is an ice water bath or a cold air rapid cooling mode.
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| CN110732767A (en) * | 2019-11-25 | 2020-01-31 | 宜兴市鼎锋模具制造有限公司 | kinds of hardware tools made up of tungsten steel and high-speed steel and their production |
| CN112743089A (en) * | 2020-12-23 | 2021-05-04 | 宜兴市鼎锋模具制造有限公司 | Direct fusion method of high-speed steel and tungsten steel |
| CN112809221A (en) * | 2020-12-28 | 2021-05-18 | 宜兴市鼎锋模具制造有限公司 | Hardware tool with indirectly fused high-speed steel and tungsten steel and machining method |
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