CN113737110A - High-strength silicon carbide steel ball and preparation method thereof - Google Patents
High-strength silicon carbide steel ball and preparation method thereof Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/22—Moulds for peculiarly-shaped castings
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/36—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for balls; for rollers
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/04—Making ferrous alloys by melting
- C22C33/06—Making ferrous alloys by melting using master alloys
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/32—Balls
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2220/00—Shaping
- F16C2220/02—Shaping by casting
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2223/00—Surface treatments; Hardening; Coating
- F16C2223/10—Hardening, e.g. carburizing, carbo-nitriding
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Abstract
The invention discloses a high-strength silicon carbide steel ball which comprises the following raw materials in parts by weight: 20-30 parts of silicon carbide, 1-2 parts of chromium, 3-5 parts of boron nitride, 10-20 parts of iron, 2-3 parts of molybdenum, 30-40 parts of manganese steel, 5-8 parts of nickel, 6-8 parts of titanium, 2-3 parts of phosphorus and 2-3 parts of sulfur; a preparation method of high-strength carbonized silicon steel balls comprises the following steps of S1, melting; s2, die forging to form balls; s3, polishing; s4, secondary heating; s5, high-temperature quenching; s6, tempering the engine oil; and S7, detecting a finished product. The high-strength carbonized silicon steel ball prepared by the invention has excellent mechanical properties of high breaking strength, high Rockwell hardness, high compressive strength and the like, and has the advantages of long service life, high operation accuracy, simple process, low production energy consumption, no generation of three wastes and high environmental protection property.
Description
Technical Field
The invention relates to the technical field of steel balls, in particular to a high-strength carbonized silicon steel ball and a preparation method thereof.
Background
The steel balls are divided into bearing steel balls, stainless steel balls, carbon steel balls, copper bearing steel balls and the like according to processing materials, wherein the bearing steel balls are important basic parts of industry.
Because the bearing steel ball is mainly placed in the bearing, the strength and the durability of the bearing steel ball directly influence the rotation accuracy of the bearing, and in the use process of the machine, the bearing is in a continuous high-strength working state, and the mechanical properties such as the strength of the bearing steel ball can influence the normal operation of the machine at the moment.
Based on the technical scheme, the invention provides a high-strength carbonized silicon steel ball and a preparation method thereof.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a high-strength carbonized silicon steel ball and a preparation method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
a high-strength silicon carbide steel ball comprises the following raw materials in parts by weight: 20-30 parts of silicon carbide, 1-2 parts of chromium, 3-5 parts of boron nitride, 10-20 parts of iron, 2-3 parts of molybdenum, 30-40 parts of manganese steel, 5-8 parts of nickel, 6-8 parts of titanium, 2-3 parts of phosphorus and 2-3 parts of sulfur.
Preferably, the high-strength carbonized silicon steel ball comprises the following raw materials in parts by weight: 25-30 parts of silicon carbide, 1.5-2 parts of chromium, 3-4 parts of boron nitride, 13-20 parts of iron, 2.5-3 parts of molybdenum, 35-40 parts of manganese steel, 6-8 parts of nickel, 7-8 parts of titanium, 2-2.5 parts of phosphorus and 2-2.5 parts of sulfur.
Preferably, the high-strength carbonized silicon steel ball comprises the following raw materials in parts by weight: 25 parts of silicon carbide, 2 parts of chromium, 4 parts of boron nitride, 15 parts of iron, 3 parts of molybdenum, 40 parts of manganese steel, 6 parts of nickel, 7 parts of titanium, 2 parts of phosphorus and 2 parts of sulfur.
A preparation method of high-strength carbonized silicon steel balls comprises the following steps:
s1, melting, namely selecting 20-30 parts of silicon carbide, 1-2 parts of chromium, 3-5 parts of boron nitride, 10-20 parts of iron, 2-3 parts of molybdenum, 30-40 parts of manganese steel, 5-8 parts of nickel, 6-8 parts of titanium, 2-3 parts of phosphorus and 2-3 parts of sulfur according to weight percentage, and then putting the raw materials into a melting furnace for heating and melting to uniformly stir and mix all the raw materials;
s2, die forging to form balls, and placing the molten raw materials into a forming die until the raw materials are cooled and formed to obtain a rough blank steel ball;
s3, polishing, namely taking out the rough blank steel ball and performing surface polishing treatment to obtain a semi-finished product steel ball;
s4, secondary heating, namely heating the semi-finished steel ball heating furnace and preserving heat;
s5, high-temperature quenching, namely naturally cooling the semi-finished steel balls after secondary heating, and then putting the semi-finished steel balls into quenching liquid for rolling quenching;
s6, tempering with engine oil, namely tempering the quenched steel ball in the engine oil;
and S7, detecting a finished product, and detecting the quality of the tempered steel ball to obtain the finished product.
Preferably, in the step S4, the temperature of the semi-finished steel ball after being heated is 700-780 ℃, and the holding time is 1.2-1.8H.
Preferably, in the step S5, the temperature after the semi-finished steel ball cooling zone is 650-680 ℃, and the temperature of the quenching liquid is 30-35 ℃.
Preferably, in the step S6, the tempering temperature of the quenched steel ball is 180-230 ℃, and the tempering time is 3-5H.
The invention has the following beneficial effects:
1. the high-strength carbonized silicon steel ball prepared by the method has excellent mechanical properties such as high breaking strength, high Rockwell hardness and high compressive strength, and has long service life and high operation accuracy;
2. the high-strength silicon carbide steel ball prepared by the invention has the advantages of simple process, low production energy consumption, no three wastes and high environmental protection.
Detailed Description
The present invention will be further illustrated with reference to the following specific examples.
Example 1
The high-strength carbonized silicon steel ball comprises the following raw materials in parts by weight: 20 parts of silicon carbide, 1 part of chromium, 3 parts of boron nitride, 10 parts of iron, 2 parts of molybdenum, 30 parts of manganese steel, 5 parts of nickel, 6 parts of titanium, 2 parts of phosphorus and 2 parts of sulfur.
The process flow comprises the following steps:
s1, melting, namely selecting 20 parts of silicon carbide, 1 part of chromium, 3 parts of boron nitride, 10 parts of iron, 2 parts of molybdenum, 30 parts of manganese steel, 5 parts of nickel, 6 parts of titanium, 2 parts of phosphorus and 2 parts of sulfur according to weight percentage, and then putting the raw materials into a smelting furnace for heating and melting to ensure that all the raw materials are uniformly stirred and mixed;
s2, die forging to form balls, and placing the molten raw materials into a forming die until the raw materials are cooled and formed to obtain a rough blank steel ball;
s3, polishing, namely taking out the rough blank steel ball and performing surface polishing treatment to obtain a semi-finished product steel ball;
s4, secondary heating, namely heating the semi-finished steel ball heating furnace and preserving heat;
s5, high-temperature quenching, namely naturally cooling the semi-finished steel balls after secondary heating, and then putting the semi-finished steel balls into quenching liquid for rolling quenching;
s6, tempering with engine oil, namely tempering the quenched steel ball in the engine oil;
and S7, detecting a finished product, and detecting the quality of the tempered steel ball to obtain the finished product.
Example 2
The high-strength carbonized silicon steel ball comprises the following raw materials in parts by weight: 23 parts of silicon carbide, 1.3 parts of chromium, 3.5 parts of boron nitride, 12 parts of iron, 2.2 parts of molybdenum, 33 parts of manganese steel, 5.5 parts of nickel, 6.5 parts of titanium, 2.2 parts of phosphorus and 2.2 parts of sulfur.
The process flow comprises the following steps:
s1, melting, namely selecting 23 parts of silicon carbide, 1.3 parts of chromium, 3.5 parts of boron nitride, 12 parts of iron, 2.2 parts of molybdenum, 33 parts of manganese steel, 5.5 parts of nickel, 6.5 parts of titanium, 2.2 parts of phosphorus and 2.2 parts of sulfur according to weight percentage, and then putting the raw materials into a melting furnace for heating and melting to ensure that all the raw materials are uniformly stirred and mixed;
s2, die forging to form balls, and placing the molten raw materials into a forming die until the raw materials are cooled and formed to obtain a rough blank steel ball;
s3, polishing, namely taking out the rough blank steel ball and performing surface polishing treatment to obtain a semi-finished product steel ball;
s4, secondary heating, namely heating the semi-finished steel ball heating furnace and preserving heat;
s5, high-temperature quenching, namely naturally cooling the semi-finished steel balls after secondary heating, and then putting the semi-finished steel balls into quenching liquid for rolling quenching;
s6, tempering with engine oil, namely tempering the quenched steel ball in the engine oil;
and S7, detecting a finished product, and detecting the quality of the tempered steel ball to obtain the finished product.
Example 3
The high-strength carbonized silicon steel ball comprises the following raw materials in parts by weight: 25 parts of silicon carbide, 1.5 parts of chromium, 4 parts of boron nitride, 15 parts of iron, 2.5 parts of molybdenum, 35 parts of manganese steel, 6.5 parts of nickel, 7 parts of titanium, 2.5 parts of phosphorus and 2.5 parts of sulfur.
The process flow comprises the following steps:
s1, melting, namely selecting 25 parts of silicon carbide, 1.5 parts of chromium, 4 parts of boron nitride, 15 parts of iron, 2.5 parts of molybdenum, 35 parts of manganese steel, 6.5 parts of nickel, 7 parts of titanium, 2.5 parts of phosphorus and 2.5 parts of sulfur according to weight percentage, and then putting the raw materials into a melting furnace for heating and melting to ensure that all the raw materials are uniformly stirred and mixed;
s2, die forging to form balls, and placing the molten raw materials into a forming die until the raw materials are cooled and formed to obtain a rough blank steel ball;
s3, polishing, namely taking out the rough blank steel ball and performing surface polishing treatment to obtain a semi-finished product steel ball;
s4, secondary heating, namely heating the semi-finished steel ball heating furnace and preserving heat;
s5, high-temperature quenching, namely naturally cooling the semi-finished steel balls after secondary heating, and then putting the semi-finished steel balls into quenching liquid for rolling quenching;
s6, tempering with engine oil, namely tempering the quenched steel ball in the engine oil;
and S7, detecting a finished product, and detecting the quality of the tempered steel ball to obtain the finished product.
Example 4
The high-strength carbonized silicon steel ball comprises the following raw materials in parts by weight: 28 parts of silicon carbide, 1.7 parts of chromium, 4.5 parts of boron nitride, 18 parts of iron, 2.8 parts of molybdenum, 37 parts of manganese steel, 7 parts of nickel, 7.5 parts of titanium, 2.8 parts of phosphorus and 2.8 parts of sulfur.
The process flow comprises the following steps:
s1, melting, namely selecting 28 parts of silicon carbide, 1.7 parts of chromium, 4.5 parts of boron nitride, 18 parts of iron, 2.8 parts of molybdenum, 37 parts of manganese steel, 7 parts of nickel, 7.5 parts of titanium, 2.8 parts of phosphorus and 2.8 parts of sulfur according to weight percentage, and then putting the raw materials into a melting furnace for heating and melting to ensure that all the raw materials are uniformly stirred and mixed;
s2, die forging to form balls, and placing the molten raw materials into a forming die until the raw materials are cooled and formed to obtain a rough blank steel ball;
s3, polishing, namely taking out the rough blank steel ball and performing surface polishing treatment to obtain a semi-finished product steel ball;
s4, secondary heating, namely heating the semi-finished steel ball heating furnace and preserving heat;
s5, high-temperature quenching, namely naturally cooling the semi-finished steel balls after secondary heating, and then putting the semi-finished steel balls into quenching liquid for rolling quenching;
s6, tempering with engine oil, namely tempering the quenched steel ball in the engine oil;
and S7, detecting a finished product, and detecting the quality of the tempered steel ball to obtain the finished product.
Example 5
The high-strength carbonized silicon steel ball comprises the following raw materials in parts by weight: 30 parts of silicon carbide, 2 parts of chromium, 5 parts of boron nitride, 20 parts of iron, 3 parts of molybdenum, 40 parts of manganese steel, 8 parts of nickel, 8 parts of titanium, 3 parts of phosphorus and 3 parts of sulfur.
The process flow comprises the following steps:
s1, melting, namely selecting 30 parts of silicon carbide, 2 parts of chromium, 5 parts of boron nitride, 20 parts of iron, 3 parts of molybdenum, 40 parts of manganese steel, 8 parts of nickel, 8 parts of titanium, 3 parts of phosphorus and 3 parts of sulfur according to weight percentage, and then putting the raw materials into a smelting furnace for heating and melting to ensure that all the raw materials are uniformly stirred and mixed;
s2, die forging to form balls, and placing the molten raw materials into a forming die until the raw materials are cooled and formed to obtain a rough blank steel ball;
s3, polishing, namely taking out the rough blank steel ball and performing surface polishing treatment to obtain a semi-finished product steel ball;
s4, secondary heating, namely heating the semi-finished steel ball heating furnace and preserving heat;
s5, high-temperature quenching, namely naturally cooling the semi-finished steel balls after secondary heating, and then putting the semi-finished steel balls into quenching liquid for rolling quenching;
s6, tempering with engine oil, namely tempering the quenched steel ball in the engine oil;
and S7, detecting a finished product, and detecting the quality of the tempered steel ball to obtain the finished product.
The high-strength silicon carbide steel ball prepared by the invention has excellent mechanical properties such as high breaking strength, high Rockwell hardness, high compressive strength and the like, and has the advantages of long service life, high operation accuracy, simple process, low production energy consumption, no generation of three wastes and high environmental protection property.
In order to test the effect of the mechanical properties of the high-strength silicon carbide steel balls, the bearings made of the high-strength silicon carbide steel balls produced by the multiple embodiments of the invention are placed into the same equipment for operation, the operation conditions are the same, and the operation time is 20H.
| Using this protocol to prepare | Flexural strength (MPa) | Rockwell Hardness (HRC) | Compressive strength (MPa) | Smoothness of the surface |
| Example 1 | 2.35 | 73 | 4.12 | 93％ |
| Example 2 | 2.18 | 76 | 3.89 | 95％ |
| Example 3 | 3.89 | 80 | 4.69 | 98％ |
| Example 4 | 3.16 | 75 | 4.31 | 96％ |
| Example 5 | 2.85 | 74 | 3.58 | 90％ |
From the above experimental data, it can be known that the high-strength silicon carbide steel ball of example 3 has high breaking strength, high rockwell hardness, high compressive strength, and strong wear resistance, and has a good application prospect.
Although the 5 embodiments of the present invention have been described in detail, the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.
Claims (7)
1. The high-strength silicon carbide steel ball is characterized by comprising the following raw materials in parts by weight: 20-30 parts of silicon carbide, 1-2 parts of chromium, 3-5 parts of boron nitride, 10-20 parts of iron, 2-3 parts of molybdenum, 30-40 parts of manganese steel, 5-8 parts of nickel, 6-8 parts of titanium, 2-3 parts of phosphorus and 2-3 parts of sulfur.
2. The high-strength silicon carbide steel ball as claimed in claim 1, which comprises the following raw materials in parts by weight: 25-30 parts of silicon carbide, 1.5-2 parts of chromium, 3-4 parts of boron nitride, 13-20 parts of iron, 2.5-3 parts of molybdenum, 35-40 parts of manganese steel, 6-8 parts of nickel, 7-8 parts of titanium, 2-2.5 parts of phosphorus and 2-2.5 parts of sulfur.
3. The high-strength silicon carbide steel ball as claimed in claim 1, which comprises the following raw materials in parts by weight: 25 parts of silicon carbide, 2 parts of chromium, 4 parts of boron nitride, 15 parts of iron, 3 parts of molybdenum, 40 parts of manganese steel, 6 parts of nickel, 7 parts of titanium, 2 parts of phosphorus and 2 parts of sulfur.
4. The method for preparing the high-strength carbonized silicon steel ball according to claim 1, comprising the following steps:
s1, melting, namely selecting 20-30 parts of silicon carbide, 1-2 parts of chromium, 3-5 parts of boron nitride, 10-20 parts of iron, 2-3 parts of molybdenum, 30-40 parts of manganese steel, 5-8 parts of nickel, 6-8 parts of titanium, 2-3 parts of phosphorus and 2-3 parts of sulfur according to weight percentage, and then putting the raw materials into a melting furnace for heating and melting to uniformly stir and mix all the raw materials;
s2, die forging to form balls, and placing the molten raw materials into a forming die until the raw materials are cooled and formed to obtain a rough blank steel ball;
s3, polishing, namely taking out the rough blank steel ball and performing surface polishing treatment to obtain a semi-finished product steel ball;
s4, secondary heating, namely heating the semi-finished steel ball heating furnace and preserving heat;
s5, high-temperature quenching, namely naturally cooling the semi-finished steel balls after secondary heating, and then putting the semi-finished steel balls into quenching liquid for rolling quenching;
s6, tempering with engine oil, namely tempering the quenched steel ball in the engine oil;
and S7, detecting a finished product, and detecting the quality of the tempered steel ball to obtain the finished product.
5. The method for preparing high-strength carbonized silicon steel ball as claimed in claim 4, wherein in the step S4, the temperature of the semi-finished steel ball after heating is 700-780 ℃ and the holding time is 1.2-1.8H.
6. The method for preparing high-strength carbonized silicon steel balls as claimed in claim 4, wherein in the step S5, the temperature of the semi-finished steel ball after the cold zone is 650-680 ℃, and the temperature of the quenching liquid is 30-35 ℃.
7. The method for preparing high-strength carbonized silicon steel balls as claimed in claim 4, wherein in the step S6, the tempering temperature of the quenched steel balls is 180-230 ℃, and the tempering time is 3-5H.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115505825A (en) * | 2022-07-28 | 2022-12-23 | 宁国慧宏耐磨材料有限公司 | High-strength chromium-manganese-nickel steel ball and preparation method thereof |
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| CN115505825A (en) * | 2022-07-28 | 2022-12-23 | 宁国慧宏耐磨材料有限公司 | High-strength chromium-manganese-nickel steel ball and preparation method thereof |
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