CN111926255A - High-carbon chromium bearing steel and production method thereof - Google Patents
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Abstract
The invention discloses high-carbon chromium bearing steel and a production method thereof, wherein the high-carbon chromium bearing steel comprises the following chemical components in percentage by weight: 0.85-1.10% of carbon, 0.15-0.45% of silicon, 1.33-1.75% of chromium, 0.003-0.002% of vanadium, 0.0025-0.0065% of nitrogen, 0.015-0.035% of aluminum, 0.24-0.55% of manganese, 0.0003-0.0007% of oxygen, 0.003-0.004% of antimony, 0.85-0.15% of nickel, 0.14-0.15% of copper, 0.01-0.015% of phosphorus, 0.005-0.008% of sulfur, 0.002-0.0025% of titanium and the balance of iron and inevitable impurities. The processing steps of the conventional high-carbon chromium bearing steel are multiple, a large amount of structural equipment is needed to be matched for working, and the problem is easy to occur due to the fact that the high-carbon chromium bearing steel needs to be processed without stopping transition.
Description
Technical Field
The invention relates to the technical field of steel smelting, in particular to high-carbon chromium bearing steel and a production method thereof.
Background
The bearing steel is called king in steel by the steel-making person, the high-carbon chromium bearing steel is a large variety of bearing steel, and is the most common steel for manufacturing bearings and bearing parts, the high-carbon chromium bearing steel is GCr15 and GCr15SiMn, and the former is the most used in the bearing industry in China.
The traditional high-carbon chromium bearing steel has the problems of complex processing process and steps, high production cost and low working efficiency, careless mistakes are easy to occur in the process of processing step conversion, and the processing effectiveness is not guaranteed.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the high-carbon chromium bearing steel and the production method thereof, which have the advantages of simple operation steps and good effect and solve the problems provided by the technical background.
The invention provides the following technical scheme: the high-carbon chromium bearing steel comprises the following chemical components in percentage by weight: 0.85-1.10% of carbon, 0.15-0.45% of silicon, 1.33-1.75% of chromium, 0.003-0.002% of vanadium, 0.0025-0.0065% of nitrogen, 0.015-0.035% of aluminum, 0.24-0.55% of manganese, 0.0003-0.0007% of oxygen, 0.003-0.004% of antimony, 0.85-0.15% of nickel, 0.14-0.15% of copper, 0.01-0.015% of phosphorus, 0.005-0.008% of sulfur, 0.002-0.0025% of titanium and the balance of iron and inevitable impurities.
Carefully selecting the high-carbon chromium bearing steel according to the following chemical components in percentage by weight: 0.85 to 1.10 percent of carbon, 0.15 to 0.45 percent of silicon, 1.33 to 1.75 percent of chromium, 0.003 to 0.002 percent of vanadium, 0.0025 to 0.0065 percent of nitrogen, 0.015 to 0.035 percent of aluminum, 0.24 to 0.55 percent of manganese, 0.0003 to 0.0007 percent of oxygen, 0.003 to 0.004 percent of antimony, 0.85 to 0.15 percent of nickel, 0.14 to 0.15 percent of copper, 0.01 to 0.015 percent of phosphorus, 0.005 to 0.008 percent of sulfur, 0.002 to 0.0025 percent of titanium, and the balance of iron and inevitable impurities, and the production method thereof comprises the following steps:
the first step is as follows: initial smelting of electric furnace
The matching materials are put into an electric furnace for smelting, the temperature in the furnace is ensured to be kept at 1550-1700 ℃ all the time, and the molten steel is subjected to low phosphorization and low titanizing;
the second step is that: secondary burning of ladle furnace
Putting the primary smelting material into a ladle furnace, adding a deoxidizing agent, and continuously smelting for four hours to further reduce the oxygen content and the phosphorus content of the molten steel and further reduce the titanium content in the material;
the third step: vacuum degassing
Putting the material subjected to secondary burning into a vacuum degassing furnace, controlling the internal air pressure to be 75Pa through equipment, and continuously working for fifteen minutes;
the fourth step: casting of molten steel
Casting the molten steel subjected to vacuum degassing into a corresponding steel mould, wherein the casting speed is controlled to be maintained at 4 tons/min in the casting process, the surface of the molten steel is filled with argon for protection, and the content of the argon is controlled to be 2-5%;
the fifth step: heating of cast steel material
Introducing the cast steel material block into a burning material to work, controlling the internal temperature at 1200-1450 ℃, and continuously working for two hours;
and a sixth step: rolled steel
Rolling the treated steel material;
the seventh step: subsequent treatment
And cooling the material subjected to steel rolling, and then cutting into blocks and sections.
And carefully selecting, wherein the contents of phosphorus and titanium in molten steel prepared from the high-carbon chromium bearing steel are respectively reduced to 0.005% and 0.0005% after primary smelting in an electric furnace and secondary smelting in a ladle furnace.
And (4) selecting, wherein the combustion material of the high-carbon chromium bearing steel which is prepared into molten steel in the fifth step is natural gas.
And (3) carefully selecting the high-carbon chromium bearing steel to be prepared into molten steel, and adopting an annular wrapping mode by argon when the molten steel is cast in the fourth step.
And (3) carefully selecting, wherein the high-carbon chromium bearing steel is prepared into molten steel, and a common cold slow treatment process is adopted in the seventh cooling treatment.
Compared with the prior art, the invention has the following beneficial effects:
the processing steps of the conventional high-carbon chromium bearing steel are multiple, a large amount of structural equipment is needed to be matched for working, and the problem is easy to occur due to the fact that the high-carbon chromium bearing steel needs to be processed without stopping transition.
Drawings
Fig. 1 is a schematic diagram of a finished product of a high-carbon chromium bearing steel column section.
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. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Referring to fig. 1, a high-carbon chromium bearing steel and a method for producing the same, comprising the following chemical components: 0.85-1.10% of carbon, 0.15-0.45% of silicon, 1.33-1.75% of chromium, 0.003-0.002% of vanadium, 0.0025-0.0065% of nitrogen, 0.015-0.035% of aluminum, 0.24-0.55% of manganese, 0.0003-0.0007% of oxygen, 0.003-0.004% of antimony, 0.85-0.15% of nickel, 0.14-0.15% of copper, 0.01-0.015% of phosphorus, 0.005-0.008% of sulfur, 0.002-0.0025% of titanium and the balance of iron and inevitable impurities.
The high-carbon chromium bearing steel comprises the following chemical components in percentage by weight: 0.85 to 1.10 percent of carbon, 0.15 to 0.45 percent of silicon, 1.33 to 1.75 percent of chromium, 0.003 to 0.002 percent of vanadium, 0.0025 to 0.0065 percent of nitrogen, 0.015 to 0.035 percent of aluminum, 0.24 to 0.55 percent of manganese, 0.0003 to 0.0007 percent of oxygen, 0.003 to 0.004 percent of antimony, 0.85 to 0.15 percent of nickel, 0.14 to 0.15 percent of copper, 0.01 to 0.015 percent of phosphorus, 0.005 to 0.008 percent of sulfur, 0.002 to 0.0025 percent of titanium, and the balance of iron and inevitable impurities, and the production method thereof comprises the following steps:
the first step is as follows: initial smelting of electric furnace
The matching materials are put into an electric furnace for smelting, the temperature in the furnace is ensured to be kept at 1550-1700 ℃ all the time, and the molten steel is subjected to low phosphorization and low titanizing;
the second step is that: secondary burning of ladle furnace
Putting the primary smelting material into a ladle furnace, adding a deoxidizing agent, and continuously smelting for four hours to further reduce the oxygen content and the phosphorus content of the molten steel and further reduce the titanium content in the material;
the third step: vacuum degassing
Putting the material subjected to secondary burning into a vacuum degassing furnace, controlling the internal air pressure to be 75Pa through equipment, and continuously working for fifteen minutes;
the fourth step: casting of molten steel
Casting the molten steel subjected to vacuum degassing into a corresponding steel mould, wherein the casting speed is controlled to be maintained at 4 tons/min in the casting process, the surface of the molten steel is filled with argon for protection, and the content of the argon is controlled to be 2-5%;
the fifth step: heating of cast steel material
Introducing the cast steel material block into a burning material to work, controlling the internal temperature at 1200-1450 ℃, and continuously working for two hours;
and a sixth step: rolled steel
Rolling the treated steel material;
the seventh step: subsequent treatment
And cooling the material subjected to steel rolling, and then cutting into blocks and sections.
The contents of phosphorus and titanium in the high-carbon chromium bearing steel which is made into molten steel are respectively reduced to 0.005 percent and 0.0005 percent through primary smelting in an electric furnace and secondary smelting in a ladle furnace, the high-carbon chromium bearing steel is made into molten steel, a combustion material in the fifth step is natural gas, the high-carbon chromium bearing steel is made into molten steel in an annular wrapping mode adopted by argon gas during the fourth step of molten steel casting, and the high-carbon chromium bearing steel is made into molten steel which is subjected to cooling treatment in the seventh step by adopting a common cold slow treatment process.
Example 1
A high-carbon chromium bearing steel and a production method thereof, comprising the high-carbon chromium bearing steel, and is characterized in that: the chemical composition percentage of the high-carbon chromium bearing steel is as follows: 0.80 to 1.15 percent of carbon, 0.2 to 0.45 percent of silicon, 1.33 to 1.75 percent of chromium, 0.003 to 0.002 percent of vanadium, 0.0025 to 0.0065 percent of nitrogen, 0.015 to 0.035 percent of aluminum, 0.24 to 0.55 percent of manganese, 0.0003 to 0.0007 percent of oxygen, 0.003 to 0.004 percent of antimony, 0.85 to 0.15 percent of nickel, 0.14 to 0.15 percent of copper, 0.01 to 0.015 percent of phosphorus, 0.005 to 0.008 percent of sulfur, 0.002 to 0.0025 percent of titanium and the balance of iron and inevitable impurities.
The high-carbon chromium bearing steel comprises the following chemical components in percentage by weight: 0.80 to 1.15 percent of carbon, 0.20 to 0.50 percent of silicon, 1.33 to 1.75 percent of chromium, 0.003 to 0.002 percent of vanadium, 0.0025 to 0.0065 percent of nitrogen, 0.015 to 0.035 percent of aluminum, 0.24 to 0.55 percent of manganese, 0.0003 to 0.0007 percent of oxygen, 0.003 to 0.004 percent of antimony, 0.85 to 0.15 percent of nickel, 0.14 to 0.15 percent of copper, 0.01 to 0.015 percent of phosphorus, 0.005 to 0.008 percent of sulfur, 0.002 to 0.0025 percent of titanium, and the balance of iron and inevitable impurities, and the production method thereof comprises the following steps:
the first step is as follows: initial smelting of electric furnace
The matching materials are put into an electric furnace for smelting, the temperature in the furnace is ensured to be kept at 1550-1700 ℃ all the time, and the molten steel is subjected to low phosphorization and low titanizing;
the second step is that: secondary burning of ladle furnace
Putting the primary smelting material into a ladle furnace, adding a deoxidizing agent, and continuously smelting for four hours to further reduce the oxygen content and the phosphorus content of the molten steel and further reduce the titanium content in the material;
the third step: vacuum degassing
Putting the material subjected to secondary burning into a vacuum degassing furnace, controlling the internal air pressure to be 75Pa through equipment, and continuously working for fifteen minutes;
the fourth step: casting of molten steel
Casting the molten steel subjected to vacuum degassing into a corresponding steel mould, wherein the casting speed is controlled to be maintained at 4 tons/min in the casting process, the surface of the molten steel is filled with argon for protection, and the content of the argon is controlled to be 2-5%;
the fifth step: heating of cast steel material
Introducing the cast steel material block into a burning material to work, controlling the internal temperature at 1200-1450 ℃, and continuously working for two hours;
and a sixth step: rolled steel
Rolling the treated steel material;
the seventh step: subsequent treatment
And cooling the material subjected to steel rolling, and then cutting into blocks and sections.
Example 2
The high-carbon chromium bearing steel comprises the following chemical components in percentage by weight: 0.85-1.10% of carbon, 0.15-0.45% of silicon, 1.40-1.80% of chromium, 0.003-0.002% of vanadium, 0.0025-0.0065% of nitrogen, 0.025-0.045% of aluminum, 0.24-0.55% of manganese, 0.0003-0.0007% of oxygen, 0.003-0.004% of antimony, 0.85-0.15% of nickel, 0.14-0.15% of copper, 0.01-0.015% of phosphorus, 0.005-0.008% of sulfur, 0.002-0.0025% of titanium and the balance of iron and inevitable impurities.
The high-carbon chromium bearing steel comprises the following chemical components in percentage by weight: 0.85 to 1.10 percent of carbon, 0.15 to 0.45 percent of silicon, 1.40 to 1.80 percent of chromium, 0.003 to 0.002 percent of vanadium, 0.0025 to 0.0065 percent of nitrogen, 0.025 to 0.045 percent of aluminum, 0.24 to 0.55 percent of manganese, 0.0003 to 0.0007 percent of oxygen, 0.003 to 0.004 percent of antimony, 0.85 to 0.15 percent of nickel, 0.14 to 0.15 percent of copper, 0.01 to 0.015 percent of phosphorus, 0.005 to 0.008 percent of sulfur, 0.002 to 0.0025 percent of titanium, and the balance of iron and inevitable impurities, and the production method of the high-carbon chromium bearing steel comprises the following steps:
the first step is as follows: initial smelting of electric furnace
The matching materials are put into an electric furnace for smelting, the temperature in the furnace is ensured to be kept at 1550-1700 ℃ all the time, and the molten steel is subjected to low phosphorization and low titanizing;
the second step is that: secondary burning of ladle furnace
Putting the primary smelting material into a ladle furnace, adding a deoxidizing agent, and continuously smelting for four hours to further reduce the oxygen content and the phosphorus content of the molten steel and further reduce the titanium content in the material;
the third step: vacuum degassing
Putting the material subjected to secondary burning into a vacuum degassing furnace, controlling the internal air pressure to be 75Pa through equipment, and continuously working for fifteen minutes;
the fourth step: casting of molten steel
Casting the molten steel subjected to vacuum degassing into a corresponding steel mould, wherein the casting speed is controlled to be maintained at 4 tons/min in the casting process, the surface of the molten steel is filled with argon for protection, and the content of the argon is controlled to be 2-5%;
the fifth step: heating of cast steel material
Introducing the cast steel material block into a burning material to work, controlling the internal temperature at 1200-1450 ℃, and continuously working for two hours;
and a sixth step: rolled steel
Rolling the treated steel material;
the seventh step: subsequent treatment
And cooling the material subjected to steel rolling, and then cutting into blocks and sections.
Example 3
The high-carbon chromium bearing steel comprises the following chemical components in percentage by weight: 0.80-1.05% of carbon, 0.15-0.45% of silicon, 1.40-1.85% of chromium, 0.003-0.002% of vanadium, 0.0025-0.0065% of nitrogen, 0.015-0.035% of aluminum, 0.24-0.55% of manganese, 0.0003-0.0007% of oxygen, 0.003-0.004% of antimony, 0.85-0.15% of nickel, 0.14-0.15% of copper, 0.01-0.015% of phosphorus, 0.005-0.008% of sulfur, 0.002-0.0025% of titanium and the balance of iron and inevitable impurities.
The high-carbon chromium bearing steel comprises the following chemical components in percentage by weight: 0.80 to 1.05 percent of carbon, 0.15 to 0.45 percent of silicon, 1.40 to 1.85 percent of chromium, 0.003 to 0.002 percent of vanadium, 0.0025 to 0.0065 percent of nitrogen, 0.015 to 0.035 percent of aluminum, 0.24 to 0.55 percent of manganese, 0.0003 to 0.0007 percent of oxygen, 0.003 to 0.004 percent of antimony, 0.85 to 0.15 percent of nickel, 0.14 to 0.15 percent of copper, 0.01 to 0.015 percent of phosphorus, 0.005 to 0.008 percent of sulfur, 0.002 to 0.0025 percent of titanium, and the balance of iron and inevitable impurities, and the production method thereof comprises the following steps:
the first step is as follows: initial smelting of electric furnace
The matching materials are put into an electric furnace for smelting, the temperature in the furnace is ensured to be kept at 1550-1700 ℃ all the time, and the molten steel is subjected to low phosphorization and low titanizing;
the second step is that: secondary burning of ladle furnace
Putting the primary smelting material into a ladle furnace, adding a deoxidizing agent, and continuously smelting for four hours to further reduce the oxygen content and the phosphorus content of the molten steel and further reduce the titanium content in the material;
the third step: vacuum degassing
Putting the material subjected to secondary burning into a vacuum degassing furnace, controlling the internal air pressure to be 75Pa through equipment, and continuously working for fifteen minutes;
the fourth step: casting of molten steel
Casting the molten steel subjected to vacuum degassing into a corresponding steel mould, wherein the casting speed is controlled to be maintained at 4 tons/min in the casting process, the surface of the molten steel is filled with argon for protection, and the content of the argon is controlled to be 2-5%;
the fifth step: heating of cast steel material
Introducing the cast steel material block into a burning material to work, controlling the internal temperature at 1200-1450 ℃, and continuously working for two hours;
and a sixth step: rolled steel
Rolling the treated steel material;
the seventh step: subsequent treatment
And cooling the material subjected to steel rolling, and then cutting into blocks and sections.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Also in the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the present invention. In the drawings of the present invention, the filling pattern is only for distinguishing the layers, and is not limited to any other way.
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.
Claims (6)
1. A high-carbon chromium bearing steel and a production method thereof, comprising the high-carbon chromium bearing steel, and is characterized in that: the chemical composition percentage of the high-carbon chromium bearing steel is as follows: 0.85-1.10% of carbon, 0.15-0.45% of silicon, 1.33-1.75% of chromium, 0.003-0.002% of vanadium, 0.0025-0.0065% of nitrogen, 0.015-0.035% of aluminum, 0.24-0.55% of manganese, 0.0003-0.0007% of oxygen, 0.003-0.004% of antimony, 0.85-0.15% of nickel, 0.14-0.15% of copper, 0.01-0.015% of phosphorus, 0.005-0.008% of sulfur, 0.002-0.0025% of titanium and the balance of iron and inevitable impurities.
2. The high carbon chromium bearing steel and the production method thereof according to claim 1, characterized in that: the high-carbon chromium bearing steel comprises the following chemical components in percentage by weight: 0.85 to 1.10 percent of carbon, 0.15 to 0.45 percent of silicon, 1.33 to 1.75 percent of chromium, 0.003 to 0.002 percent of vanadium, 0.0025 to 0.0065 percent of nitrogen, 0.015 to 0.035 percent of aluminum, 0.24 to 0.55 percent of manganese, 0.0003 to 0.0007 percent of oxygen, 0.003 to 0.004 percent of antimony, 0.85 to 0.15 percent of nickel, 0.14 to 0.15 percent of copper, 0.01 to 0.015 percent of phosphorus, 0.005 to 0.008 percent of sulfur, 0.002 to 0.0025 percent of titanium, and the balance of iron and inevitable impurities, and the production method thereof comprises the following steps:
the first step is as follows: initial smelting of electric furnace
The matching materials are put into an electric furnace for smelting, the temperature in the furnace is ensured to be kept at 1550-1700 ℃ all the time, and the molten steel is subjected to low phosphorization and low titanizing;
the second step is that: secondary burning of ladle furnace
Putting the primary smelting material into a ladle furnace, adding a deoxidizing agent, and continuously smelting for four hours to further reduce the oxygen content and the phosphorus content of the molten steel and further reduce the titanium content in the material;
the third step: vacuum degassing
Putting the material subjected to secondary burning into a vacuum degassing furnace, controlling the internal air pressure to be 75Pa through equipment, and continuously working for fifteen minutes;
the fourth step: casting of molten steel
Casting the molten steel subjected to vacuum degassing into a corresponding steel mould, wherein the casting speed is controlled to be maintained at 4 tons/min in the casting process, the surface of the molten steel is filled with argon for protection, and the content of the argon is controlled to be 2-5%;
the fifth step: heating of cast steel material
Introducing the cast steel material block into a burning material to work, controlling the internal temperature at 1200-1450 ℃, and continuously working for two hours;
and a sixth step: rolled steel
Rolling the treated steel material;
the seventh step: subsequent treatment
And cooling the material subjected to steel rolling, and then cutting into blocks and sections.
3. The high carbon chromium bearing steel and the production method thereof according to claim 1, characterized in that: the contents of phosphorus and titanium in the high-carbon chromium bearing steel which is prepared into molten steel through primary smelting in an electric furnace and secondary smelting in a ladle furnace are respectively reduced to 0.005% and 0.0005%.
4. The high carbon chromium bearing steel and the production method thereof according to claim 1, characterized in that: and the combustion material of the molten steel prepared from the high-carbon chromium bearing steel in the fifth step is natural gas.
5. The high carbon chromium bearing steel and the production method thereof according to claim 1, characterized in that: the high-carbon chromium bearing steel is prepared into a molten steel, and an annular wrapping mode is adopted by argon when the molten steel is cast in the fourth step.
6. The high carbon chromium bearing steel and the production method thereof according to claim 1, characterized in that: the high-carbon chromium bearing steel is prepared into molten steel, and a common cold slow treatment process is adopted in the seventh cooling treatment.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115233109A (en) * | 2022-09-23 | 2022-10-25 | 联峰钢铁（张家港）有限公司 | Narrow-hardenability bearing steel and production process thereof |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU432224A1 (en) * | 1972-10-09 | 1974-06-15 | А. Н. Морозов, Я. Гольдштейн, Г. В. Спиркина, А. К. Петров, Д. П. Долинин, Н. А. Тулин, О. И. Тищенко, А. Н. Самсонов, А. А. Громов, Б. М. Зельбет, И. В. Кузнецов , С. А. Петухов | |
| CN1211634A (en) * | 1997-08-01 | 1999-03-24 | 奥瓦科钢铁股份公司 | Vanadium alloyed bearing steel |
| JP2001348646A (en) * | 2000-06-09 | 2001-12-18 | Sanyo Special Steel Co Ltd | Bearing steel wire rod capable of obviating wire drawing |
| JP2009084647A (en) * | 2007-09-28 | 2009-04-23 | Kobe Steel Ltd | Steel for bearing having excellent stability of rolling fatigue life |
| CN102251197A (en) * | 2010-05-20 | 2011-11-23 | 宝山钢铁股份有限公司 | High-carbon chromium bearing steel and preparation method thereof |
| CN102352466A (en) * | 2011-11-02 | 2012-02-15 | 承德建龙特殊钢有限公司 | High-carbon chromium bearing steel GCr15 and production method thereof |
| CN102433502A (en) * | 2011-12-23 | 2012-05-02 | 中冶南方(武汉)威仕工业炉有限公司 | Spheroidized annealing technology for GCr15 bearing steel |
| CN103320704A (en) * | 2013-07-12 | 2013-09-25 | 安徽工业大学 | High performance bearing steel and production method thereof |
| CN104178698A (en) * | 2014-09-01 | 2014-12-03 | 山东钢铁股份有限公司 | Method for preparing bearing steel |
| CN105925909A (en) * | 2016-06-24 | 2016-09-07 | 邢台钢铁有限责任公司 | Bearing steel wire rod and production method thereof |
| CN107904497A (en) * | 2017-12-13 | 2018-04-13 | 西王金属科技有限公司 | A kind of high life bearing steel and its manufacture method |
-
2020
- 2020-08-11 CN CN202010799990.5A patent/CN111926255A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU432224A1 (en) * | 1972-10-09 | 1974-06-15 | А. Н. Морозов, Я. Гольдштейн, Г. В. Спиркина, А. К. Петров, Д. П. Долинин, Н. А. Тулин, О. И. Тищенко, А. Н. Самсонов, А. А. Громов, Б. М. Зельбет, И. В. Кузнецов , С. А. Петухов | |
| CN1211634A (en) * | 1997-08-01 | 1999-03-24 | 奥瓦科钢铁股份公司 | Vanadium alloyed bearing steel |
| JP2001348646A (en) * | 2000-06-09 | 2001-12-18 | Sanyo Special Steel Co Ltd | Bearing steel wire rod capable of obviating wire drawing |
| JP2009084647A (en) * | 2007-09-28 | 2009-04-23 | Kobe Steel Ltd | Steel for bearing having excellent stability of rolling fatigue life |
| CN102251197A (en) * | 2010-05-20 | 2011-11-23 | 宝山钢铁股份有限公司 | High-carbon chromium bearing steel and preparation method thereof |
| CN102352466A (en) * | 2011-11-02 | 2012-02-15 | 承德建龙特殊钢有限公司 | High-carbon chromium bearing steel GCr15 and production method thereof |
| CN102433502A (en) * | 2011-12-23 | 2012-05-02 | 中冶南方(武汉)威仕工业炉有限公司 | Spheroidized annealing technology for GCr15 bearing steel |
| CN103320704A (en) * | 2013-07-12 | 2013-09-25 | 安徽工业大学 | High performance bearing steel and production method thereof |
| CN104178698A (en) * | 2014-09-01 | 2014-12-03 | 山东钢铁股份有限公司 | Method for preparing bearing steel |
| CN105925909A (en) * | 2016-06-24 | 2016-09-07 | 邢台钢铁有限责任公司 | Bearing steel wire rod and production method thereof |
| CN107904497A (en) * | 2017-12-13 | 2018-04-13 | 西王金属科技有限公司 | A kind of high life bearing steel and its manufacture method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115233109A (en) * | 2022-09-23 | 2022-10-25 | 联峰钢铁（张家港）有限公司 | Narrow-hardenability bearing steel and production process thereof |
| CN115233109B (en) * | 2022-09-23 | 2022-12-09 | 联峰钢铁（张家港）有限公司 | Narrow-hardenability bearing steel and production process thereof |
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