CN102191425A - Malleable wear-resistant alloy cast iron - Google Patents
Malleable wear-resistant alloy cast iron Download PDFInfo
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- CN102191425A CN102191425A CN2011101377016A CN201110137701A CN102191425A CN 102191425 A CN102191425 A CN 102191425A CN 2011101377016 A CN2011101377016 A CN 2011101377016A CN 201110137701 A CN201110137701 A CN 201110137701A CN 102191425 A CN102191425 A CN 102191425A
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- cast iron
- malleable
- wear
- boron
- resistant alloy
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Abstract
The invention discloses malleable wear-resistant alloy cast iron. The malleable wear-resistant alloy cast iron comprises the following components by weight percent: 2.4-2.8% of carbon, 1.1-1.5% of silicon, 0.4-0.6% of manganese, 0.15-0.2% of sulfur, 0.8-0.1% of phosphorus, 0.05-0.2% of vanadium, 0.04-0.07% boron and the balance of iron and impurities. The malleable wear-resistant alloy cast iron has both forging machinability and wear resistance. Different amounts of boron-containing cementite or ledeburite in the metallographic structure is formed in the cast iron, wherein the micro-hardness of the boron-containing cementite is HV960-1280. The malleable wear-resistant alloy cast iron has a special wear-resistant structure, thus the wear resistance is extremely increased. In addition, after the cast iron is annealed, the forging machinability becomes good.
Description
Technical field
The invention belongs to the technical field of controlling gold, specifically be meant a kind of cast alloy iron.
Background technology
Cast alloy iron is to add an amount of alloying element (as silicon, manganese, phosphorus, nickel, chromium, molybdenum, copper, aluminium, boron, vanadium, tin etc.) at plain cast iron to obtain.Alloying element changes the matrix of cast iron, thereby has heat-resisting accordingly, wear-resisting, anti-corrosion, low temperature resistant or do not have characteristics such as magnetic.Wherein, the graphitic cast iron in the cast alloy iron is because with low cost, and has the characteristics of castibility, workability, is most widely used a kind of cast iron in the industry, as is widely used in and makes as the component of engine, household electrical appliances etc.The composition of existing graphitic cast iron is to be required to decide as tensile strength, polishing machine, machinability etc. by the component capabilities of its manufacturing, adopt compromise mode to carry out proportioning at present usually and select, so the compositing range of existing graphitic cast iron is quite wide.But when graphitic cast iron was used to make the parts that wear resistance is had relatively high expectations, it was difficult to reach the requirement of wear resistance.And, because gray iron casting forging processing characteristics is poor, also be not suitable for forging processing.
Therefore, provide a kind of and forge good processability, malleable antiwear cast iron alloy that wear resistance is good becomes the industry technical issues that need to address.
Summary of the invention
The technical issues that need to address of the present invention are to provide a kind of wear resistance good, easily forge processing, malleable antiwear cast iron alloy with low cost.
For solving the problems of the technologies described above, the technical solution used in the present invention is: malleable antiwear cast iron alloy, comprise by weight: the carbon of 2.4-2.8%, the silicon of 1.1-1.5%, the manganese of 0.4-0.6%, the sulphur of 0.15-0.2%, the phosphorus of 0.8-0.1%, the vanadium of 0.05-0.2%, 0.04-0.07% boron, the iron of surplus and impurity.
Wherein, the content of described boron is 0.05-0.06%.
Wherein, the content of described boron is 0.06%.
Wherein, comprise that also weight part is the chromium of 0.2-0.4%.
Wherein, comprise that also weight part is the molybdenum of 0.1-0.4%.
The present invention has concurrently and forges processibility and wear resistance.After the present invention carried out anneal, it forged good processability; The present invention can obtain the boracic cementite of different quantities or the cast iron of ledeburite organization in metallographic structure, boracic cementite microhardness is between HV960-1280.Boracic cementite Chang Yixiao bulk or strip in cast iron are uniformly distributed on the matrix, and matrix is its low perlite much of hardness ratio.After preliminary wearing and tearing, the pearlite matrix that hardness is lower is slight concave owing to wear and tear, and becomes second surface of friction.The boron-carbide hard that hardness is very high is just given prominence to mutually and form first surface of friction on matrix, and lubricating oil is being expired in the part that caves on matrix storage, has just formed the peculiar abrasion-proof structure of malleable antiwear cast iron alloy of the present invention, has greatly improved wear resistance.
Embodiment
Below the specific embodiment of the present invention is described in further detail.
Embodiment 1
The described malleable antiwear cast iron alloy of present embodiment comprises by weight: 2.4% carbon, 1.5% silicon, 0.4% manganese, 0.2% sulphur, 0.1% phosphorus, 0.05% vanadium, 0.04% boron, the iron of surplus and impurity.
Embodiment 2
The described malleable antiwear cast iron alloy of present embodiment comprises by weight: 2.8% carbon, 1.1% silicon, 0.6% manganese, 0.15% sulphur, 0.8% phosphorus, 0.2% vanadium, 0.05% boron, the iron of surplus and impurity.
Embodiment 3
The described malleable antiwear cast iron alloy of present embodiment comprises by weight: 2.6% carbon, 1.3% silicon, 0.5% manganese, 0.15% sulphur, 0.9% phosphorus, 0.1% vanadium, 0.06% boron, the iron of surplus and impurity.
Embodiment 4
The described malleable antiwear cast iron alloy of present embodiment comprises by weight: 2.4% carbon, 1.5% silicon, 0.4% manganese, 0.2% sulphur, 0.1% phosphorus, 0.05% vanadium, 0.04% boron, 0.2% chromium, the iron of surplus and impurity.
Embodiment 5
The described malleable antiwear cast iron alloy of present embodiment comprises by weight: 2.8% carbon, 1.1% silicon, 0.6% manganese, 0.15% sulphur, 0.8% phosphorus, 0.2% vanadium, 0.05% boron, 0.4% chromium, 0.3% molybdenum, the iron of surplus and impurity.
In a word; though the present invention has exemplified above-mentioned preferred implementation, should illustrate, though those skilled in the art can carry out various variations and remodeling; unless such variation and remodeling have departed from scope of the present invention, otherwise all should be included in protection scope of the present invention.
Claims (5)
1. a malleable antiwear cast iron alloy is characterized in that, comprises by weight:
The carbon of 2.4-2.8%,
The silicon of 1.1-1.5%,
The manganese of 0.4-0.6%,
The sulphur of 0.15-0.2%,
The phosphorus of 0.8-0.1%,
The vanadium of 0.05-0.2%,
0.04-0.07% boron,
The iron of surplus and impurity.
2. according to the described malleable antiwear cast iron alloy of claim 1, it is characterized in that: the content of described boron is 0.05-0.06%.
3. according to the described malleable antiwear cast iron alloy of claim 2, it is characterized in that: the content of described boron is 0.06%.
4. according to claim 1 or 2 or 3 described malleable antiwear cast iron alloys, it is characterized in that: comprise that also weight part is the chromium of 0.2-0.4%.
5. according to claim 1 or 2 or 3 described malleable antiwear cast iron alloys, it is characterized in that: comprise that also weight part is the molybdenum of 0.1-0.4%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101377016A CN102191425A (en) | 2011-05-26 | 2011-05-26 | Malleable wear-resistant alloy cast iron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101377016A CN102191425A (en) | 2011-05-26 | 2011-05-26 | Malleable wear-resistant alloy cast iron |
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| CN102191425A true CN102191425A (en) | 2011-09-21 |
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| CN2011101377016A Pending CN102191425A (en) | 2011-05-26 | 2011-05-26 | Malleable wear-resistant alloy cast iron |
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Citations (11)
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| JPS4884024A (en) * | 1972-01-28 | 1973-11-08 | ||
| JPS52103311A (en) * | 1976-02-27 | 1977-08-30 | Riken Piston Ring Ind Co Ltd | Cylinder liner for sludge punp |
| CN85105652A (en) * | 1985-02-19 | 1986-10-08 | 燃烧工程有限公司 | Material with high-wearing feature |
| CN86102537A (en) * | 1986-10-27 | 1987-09-30 | 上海永新机械工艺咨询服务公司 | Hard wear-resistant ferrous alloy |
| CN1100150A (en) * | 1993-09-09 | 1995-03-15 | 株洲市机械工业研究所 | Impact fatigue-resistant wear-proof alloy cast iron |
| JPH0884024A (en) * | 1994-09-09 | 1996-03-26 | Japan Radio Co Ltd | Fs demodulation circuit for weather fax |
| CN1167858A (en) * | 1997-05-07 | 1997-12-17 | 铁道部山海关桥梁工厂 | Forgeable cast iron switch bed plate and mfg. method thereof |
| CN1177647A (en) * | 1996-09-21 | 1998-04-01 | 湖南省临澧县耐磨材料厂 | Low-alloy martensite cast-iron grinding ball and production process thereof |
| CN1667133A (en) * | 2004-03-08 | 2005-09-14 | 株式会社小松制作所 | Ferrous seal sliding parts and producing method thereof |
| CN101413084A (en) * | 2007-10-17 | 2009-04-22 | 鞍钢集团矿业公司 | Silicon-chromium-boron alloy wear resistant ball and manufacturing method thereof |
| CN101886207A (en) * | 2010-07-21 | 2010-11-17 | 周传禄 | GRTCr heat resisting iron casting for hot-blast furnace and production method thereof |
-
2011
- 2011-05-26 CN CN2011101377016A patent/CN102191425A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4884024A (en) * | 1972-01-28 | 1973-11-08 | ||
| JPS52103311A (en) * | 1976-02-27 | 1977-08-30 | Riken Piston Ring Ind Co Ltd | Cylinder liner for sludge punp |
| CN85105652A (en) * | 1985-02-19 | 1986-10-08 | 燃烧工程有限公司 | Material with high-wearing feature |
| CN86102537A (en) * | 1986-10-27 | 1987-09-30 | 上海永新机械工艺咨询服务公司 | Hard wear-resistant ferrous alloy |
| CN1100150A (en) * | 1993-09-09 | 1995-03-15 | 株洲市机械工业研究所 | Impact fatigue-resistant wear-proof alloy cast iron |
| JPH0884024A (en) * | 1994-09-09 | 1996-03-26 | Japan Radio Co Ltd | Fs demodulation circuit for weather fax |
| CN1177647A (en) * | 1996-09-21 | 1998-04-01 | 湖南省临澧县耐磨材料厂 | Low-alloy martensite cast-iron grinding ball and production process thereof |
| CN1167858A (en) * | 1997-05-07 | 1997-12-17 | 铁道部山海关桥梁工厂 | Forgeable cast iron switch bed plate and mfg. method thereof |
| CN1667133A (en) * | 2004-03-08 | 2005-09-14 | 株式会社小松制作所 | Ferrous seal sliding parts and producing method thereof |
| CN101413084A (en) * | 2007-10-17 | 2009-04-22 | 鞍钢集团矿业公司 | Silicon-chromium-boron alloy wear resistant ball and manufacturing method thereof |
| CN101886207A (en) * | 2010-07-21 | 2010-11-17 | 周传禄 | GRTCr heat resisting iron casting for hot-blast furnace and production method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 《铸铁》 19751231 上海机械学院铸造教研组编 铸铁 上海人民出版 74-75 , 第1版 * |
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Application publication date: 20110921 |