CN105734394A - Production method of super wear-resistant steel ball - Google Patents
Production method of super wear-resistant steel ball Download PDFInfo
- Publication number
- CN105734394A CN105734394A CN201610163412.6A CN201610163412A CN105734394A CN 105734394 A CN105734394 A CN 105734394A CN 201610163412 A CN201610163412 A CN 201610163412A CN 105734394 A CN105734394 A CN 105734394A
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- steel
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- steel ball
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Classifications
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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
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
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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
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- 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
-
- 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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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The invention discloses a production method of a super wear-resistant steel ball. The production method comprises the following operation steps: (1) burdening: from the components in percentage by weight: 80-86 percent of steel crap and steel cuttings, 10-12 percent of ferromanganese, about 2-4 percent of ferrosilicon and 6-12 percent of foundry returns; (2) smelting: smelting in a medium frequency melting furnace, and placing the foundry returns at the bottom layer during feeding; and (3) tapping: sampling after burdens are smelted clearly, carrying out chemical composition test, and raising the furnace temperature for tapping after the components of molten steel are qualified, wherein the molten steel is prepared from the following chemical components in percentage by mass: 0.3-1.2 percent of C, 0.2-0.5 percent of Cr, 1.9-2.8 percent of Si, 0.2-0.6 percent of Mn, smaller than or equal to 0.08 percent of P, smaller than or equal to 0.06 percent of S and the balance of Fe, and the tapping temperature is 1500-1580 DEG C. The production method can improve the wear resistance of the steel ball, and thus improving the toughness and the wear resistance of the steel ball and also lowering the consumption of noble metal materials.
Description
Technical field
The present invention relates to casting field, a kind of super abrasive steel ball production method.
Background technology
High-abrasive material is widely used in the industrial circles such as metallurgy, mine, electric power, building materials, high-abrasive material be required for into casting obtain new material, casting is a kind of ancient manufacture method, before China can trace back to 6000 years.Along with the development of industrial technology, the quality of casting heavy castings directly affects the quality of product, therefore, is cast in machinery manufacturing industry and occupies an important position.Metal mold both can use gravitational casting, it is possible to uses compression casting.The mold die repeated multiple times use of energy of metal mold, an often molten metal of cast, just obtain a foundry goods, the life-span is the longest, highly efficient in productivity.The foundry goods of metal mold not only dimensional accuracy is good, any surface finish, and in the case of cast same metal liquid, higher than sand mold of its casting strength, more difficult damage.Therefore, time in producing non-ferrous metal in enormous quantities, light casting, as long as the fusing point of casting material is the most too high, permanent mold casting is the most preferentially selected.But, in place of permanent mold casting also has some shortcomings: because heat-resisting alloy steel and make the processing of hollow molded cavity on it the most costly, so the die cost of metal mold is high, but overall and die casting expense compare then cheap the most how.For small lot batch manufacture, share the die cost on every product the most too high, be not easily accepted by.Again because the mould of metal mold is limited by mold materials size and pocket machining equipment, Casting Equipment ability, so king-sized foundry goods is also seemed helpless.
Summary of the invention
It is an object of the invention to overcome the deficiency of existing cast-iron grinding ball, it is provided that a kind of super abrasive steel ball production method, this kind of method is focused on the raising of abrading-ball comprehensive technical indexes, can be improved its toughness and anti-wear performance, can reduce again the consumption of precious metal material.
Technical scheme is as follows:
Complex alloy cast-steel grinding ball production method, includes following operating procedure:
A kind of super abrasive steel ball production method, it is characterised in that: include following operating procedure:
(1) dispensing: the ratio of each component by weight percentage is: steel scrap, steel cuttings 80～86%, ferromanganese 10～12%, ferrosilicon 2～about 4%, foundry returns 6～12%；
(2) melting: melting in middle frequency furnace, is placed on bottom by foundry returns during charging；
(3) tapping: sampling carries out chemical composition inspection after furnace charge is melting down, molten steel each chemical composition mass percent is C0.3-1.2%, Cr0.2-0.5%, Si1.9-2.8%, Mn0.2-0.6%, P≤0.08%, S≤0.06%, surplus is Fe, furnace temperature can be raised and wait to come out of the stove after molten steel composition is qualified, tapping temperature 1500～1580 DEG C；
(4) when coming out of the stove, manganese addition breeds；
(5) moulding by casting: temperature is 1470～1520 DEG C and utilizes existing Cast-iron Ball die casting cast steel ball.
The inventive method utilizes the molten steel of electrosmelting of intermediate frequency cast-steel grinding ball, utilizes the regenerated resources such as steel scrap, steel cuttings in a large number, not only makes cast-steel grinding ball product quality improve, and performance is more stable, and decreases the pollution to environment.
Foundry method features: cylinder iron ball metal mold combination die casting technique, rate of cooling is fast so that abrading-ball microstructure thinning is fine and close, and hardness improves, and toughness improves, and wearability improves, and percentage of damage reduces.
Detailed description of the invention
A kind of super abrasive steel ball production method, includes following operating procedure:
(1) dispensing: the ratio of each component by weight percentage is: steel scrap, steel cuttings 80～86%, ferromanganese 10～12%, ferrosilicon 2～about 4%, foundry returns 6～12%；
(2) melting: melting in middle frequency furnace, is placed on bottom by foundry returns during charging；
(3) tapping: sampling carries out chemical composition inspection after furnace charge is melting down, molten steel each chemical composition mass percent is C0.3-1.2%, Cr0.2-0.5%, Si1.9-2.8%, Mn0.2-0.6%, P≤0.08%, S≤0.06%, surplus is Fe, furnace temperature can be raised and wait to come out of the stove after molten steel composition is qualified, tapping temperature 1500～1580 DEG C；
(4) when coming out of the stove, manganese addition breeds；
(5) moulding by casting: temperature is 1470～1520 DEG C and utilizes existing Cast-iron Ball die casting cast steel ball.
Claims (1)
1. a super abrasive steel ball production method, it is characterised in that: include following operating procedure:
(1) dispensing: the ratio of each component by weight percentage is: steel scrap, steel cuttings 80～86%, ferromanganese 10～12%, ferrosilicon 2～about 4%, foundry returns 6～12%；
(2) melting: melting in middle frequency furnace, is placed on bottom by foundry returns during charging；
(3) tapping: sampling carries out chemical composition inspection after furnace charge is melting down, molten steel each chemical composition mass percent is C0.3-1.2%, Cr0.2-0.5%, Si1.9-2.8%, Mn0.2-0.6%, P≤0.08%, S≤0.06%, surplus is Fe, furnace temperature can be raised and wait to come out of the stove after molten steel composition is qualified, tapping temperature 1500～1580 DEG C；
(4) when coming out of the stove, manganese addition breeds；
(5) moulding by casting: temperature is 1470～1520 DEG C and utilizes existing Cast-iron Ball die casting cast steel ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610163412.6A CN105734394A (en) | 2016-03-20 | 2016-03-20 | Production method of super wear-resistant steel ball |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610163412.6A CN105734394A (en) | 2016-03-20 | 2016-03-20 | Production method of super wear-resistant steel ball |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105734394A true CN105734394A (en) | 2016-07-06 |
Family
ID=56250972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610163412.6A Pending CN105734394A (en) | 2016-03-20 | 2016-03-20 | Production method of super wear-resistant steel ball |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105734394A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1256323A (en) * | 1998-12-07 | 2000-06-14 | 清华大学 | High-strength and high-toughness weldable air-cooled Hongkang bainite steel specially for railway frog |
| CN101892426A (en) * | 2010-06-21 | 2010-11-24 | 余忠友 | Medium and high-carbon Bainite steel and preparation method thereof |
| CN103614661A (en) * | 2013-11-08 | 2014-03-05 | 宁波宇翔机械铸造有限公司 | Novel wear-resistant bucket tooth and production method thereof |
-
2016
- 2016-03-20 CN CN201610163412.6A patent/CN105734394A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1256323A (en) * | 1998-12-07 | 2000-06-14 | 清华大学 | High-strength and high-toughness weldable air-cooled Hongkang bainite steel specially for railway frog |
| CN101892426A (en) * | 2010-06-21 | 2010-11-24 | 余忠友 | Medium and high-carbon Bainite steel and preparation method thereof |
| CN103614661A (en) * | 2013-11-08 | 2014-03-05 | 宁波宇翔机械铸造有限公司 | Novel wear-resistant bucket tooth and production method thereof |
Non-Patent Citations (4)
| Title |
|---|
| 内蒙古机械工业管理协会: "《实用机械工人技术问答1500题》", 30 November 2001 * |
| 崔令江等: "《材料成形技术基础》", 30 June 2003 * |
| 杜双明等: "《材料科学与工程概论》", 31 August 2011 * |
| 王立军等: "《航空工程材料与成形工艺基础》", 30 June 2015 * |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160706 |
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| WD01 | Invention patent application deemed withdrawn after publication |