CN103572145A - Ductile cast iron alloy with high strength - Google Patents
Ductile cast iron alloy with high strength Download PDFInfo
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- CN103572145A CN103572145A CN201310539014.6A CN201310539014A CN103572145A CN 103572145 A CN103572145 A CN 103572145A CN 201310539014 A CN201310539014 A CN 201310539014A CN 103572145 A CN103572145 A CN 103572145A
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- cast iron
- iron alloy
- ductile cast
- high strength
- vanadium
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Abstract
The invention relates to a ductile cast iron alloy with high strength. The ductile cast iron alloy comprises the following components by weight percent: 2.1-2.3% of carbon, 2.8-3.0% of silicon, 0.1-0.3% of magnesium, 0.02-0.04% of chromium, 0.003-0.005% of boron, 0.1-0.12% of copper, 0.1-0.3% of tungsten, 0.01-0.03% of vanadium, 0.001-0.003% of lanthanide rare earth and the balance of iron. The ductile cast iron alloy is suitable for shaft parts and chassis parts of lorries and saloon cars, such as tie rods, wheel carriers and slewing bearings and endures high mechanical and dynamic stresses.
Description
Technical field
The invention belongs to metal material field, refer to there is high mechanical strength, high-wearing feature and the cast iron alloy simultaneously with high tenacity.
Background technology
In automobile making, apply cast iron alloy and prepare the foundry goods must with high-wearing feature, retarding disc for example, it needs automobile kinetic energy to be transformed into heat energy in braking procedure.At this moment this retarding disc can reach approximately 850 ℃.In braking procedure, not only coating is braked in wearing and tearing, and retarding disc also weares and teares.Retarding disc has irregular wearing and tearing, and is conventionally still under warranty and needs manufacturer to replace with expensive.For making to occur as far as possible equably in the lip-deep wearing and tearing of retarding disc, this structure has been proposed to high crystalline structure and uniformity requirement.By suitable castmethod, can improve homogeneity.
Summary of the invention
The object of this invention is to provide a kind of cast iron alloy that there is high mechanical strength, high-wearing feature and there is high tenacity simultaneously.
The present invention is achieved by the following technical solutions:
A kind of have a high-strength ductile cast iron alloy, its composition is that the carbon of 2.1-2.3%, the silicon of 2.8-3.0%, the magnesium of 0.1-0.3%, the boron of the chromium of 0.02-0.04%, 0.003-0.005%, the tungsten of the copper of 0.1-0.12%, 0.1-0.3%, the lanthanide rare of the vanadium of 0.01-0.03%, 0.001-0.003% and surplus are iron by weight percentage.
Further, described nodular cast iron alloy, its composition also includes the manganese of 0.1-0.12% by weight percentage.
The invention has the beneficial effects as follows:
Nodular cast iron alloy of the present invention is suitable for the spindle unit of cargo truck and car and vehicle chassis component as drag link, wheel carrier and turntable bearing, and it stands high machinery and dynamic stress.
Embodiment
A kind of have a high-strength ductile cast iron alloy, its composition is that the carbon of 2.1-2.3%, the silicon of 2.8-3.0%, the magnesium of 0.1-0.3%, the boron of the chromium of 0.02-0.04%, 0.003-0.005%, the tungsten of the copper of 0.1-0.12%, 0.1-0.3%, the lanthanide rare of the vanadium of 0.01-0.03%, 0.001-0.003% and surplus are iron by weight percentage.
Cast iron alloy of the present invention, its Brinell hardness is greater than 220, and when applying as retarding disc, is wearing and tearing as far as possible uniformly.Graphite in this cast iron alloy can be spherical or vermiform, but non-stratiform or sheet.Although the retarding disc price containing lamellar graphite is low, its resistance to temperature alternating is poor.Therefore after the short period of time is used, can produce the so-called thermal crack that is subject to, this rapid crack also causes surface irregularity.Uneven surface causes inhomogeneous temperature load, inhomogeneous wearing and tearing again and causes so-called squeal sound.
Embodiment 1
A kind of have a high-strength ductile cast iron alloy, its composition is that 2.3% carbon, 3.0% silicon, 0.3% magnesium, 0.3% tungsten, 0.03% vanadium, 0.04% chromium, 0.005% boron, 0.12% copper, 0.003% lanthanide rare, 0.12% manganese and surplus are iron by weight percentage.
Embodiment 2
A kind of have a high-strength ductile cast iron alloy, its composition is that 2.1% carbon, 2.8% silicon, 0.1% magnesium, 0.1% tungsten, 0.01% vanadium, 0.02% chromium, 0.001% boron, 0.1% copper, 0.001% lanthanide rare, 0.1% manganese and surplus are iron by weight percentage.
Embodiment 3
A kind of have a high-strength ductile cast iron alloy, its composition is that 2.2% carbon, 2.85% silicon, 0.15% magnesium, 0.03% chromium, 0.2% tungsten, 0.015% vanadium, 0.0015% boron, 0.11% copper, 0.0015% lanthanide rare, 0.11% manganese and surplus are iron by weight percentage.
Claims (2)
1. one kind has high-strength ductile cast iron alloy, it is characterized in that: its composition is that the carbon of 2.1-2.3%, the silicon of 2.8-3.0%, the magnesium of 0.1-0.3%, the boron of the chromium of 0.02-0.04%, 0.003-0.005%, the tungsten of the copper of 0.1-0.12%, 0.1-0.3%, the lanthanide rare of the vanadium of 0.01-0.03%, 0.001-0.003% and surplus are iron by weight percentage.
2. according to claim 1 have a high-strength ductile cast iron alloy, it is characterized in that: described nodular cast iron alloy, it forms and also includes by weight percentage the manganese of 0.1-0.12%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310539014.6A CN103572145A (en) | 2013-11-04 | 2013-11-04 | Ductile cast iron alloy with high strength |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310539014.6A CN103572145A (en) | 2013-11-04 | 2013-11-04 | Ductile cast iron alloy with high strength |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103572145A true CN103572145A (en) | 2014-02-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201310539014.6A Pending CN103572145A (en) | 2013-11-04 | 2013-11-04 | Ductile cast iron alloy with high strength |
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| CN (1) | CN103572145A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104651709A (en) * | 2015-01-30 | 2015-05-27 | 霍山鑫汇科技有限公司 | Nodular cast iron |
| CN107217195A (en) * | 2017-05-19 | 2017-09-29 | 成都亨通兆业精密机械有限公司 | A kind of high spherulitic iron crankshaft of intensity |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54133419A (en) * | 1978-04-08 | 1979-10-17 | Ebara Corp | Ductile cast iron or ferrite structure of superior mechanical properties |
| US4435226A (en) * | 1981-12-01 | 1984-03-06 | Goetze Ag | Wear resistant cast iron alloy with spheroidal graphite separation and manufacturing method therefor |
| JPH02166226A (en) * | 1988-12-20 | 1990-06-26 | Mazda Motor Corp | Manufacture of wear-resistant cast iron parts |
| CN102618779A (en) * | 2012-02-24 | 2012-08-01 | 常州宝菱重工机械有限公司 | As-cast bainite ductile cast iron composite roll |
| CN102978510A (en) * | 2012-11-26 | 2013-03-20 | 俞虹 | Spheroidal graphite cast iron alloy |
-
2013
- 2013-11-04 CN CN201310539014.6A patent/CN103572145A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54133419A (en) * | 1978-04-08 | 1979-10-17 | Ebara Corp | Ductile cast iron or ferrite structure of superior mechanical properties |
| US4435226A (en) * | 1981-12-01 | 1984-03-06 | Goetze Ag | Wear resistant cast iron alloy with spheroidal graphite separation and manufacturing method therefor |
| JPH02166226A (en) * | 1988-12-20 | 1990-06-26 | Mazda Motor Corp | Manufacture of wear-resistant cast iron parts |
| CN102618779A (en) * | 2012-02-24 | 2012-08-01 | 常州宝菱重工机械有限公司 | As-cast bainite ductile cast iron composite roll |
| CN102978510A (en) * | 2012-11-26 | 2013-03-20 | 俞虹 | Spheroidal graphite cast iron alloy |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104651709A (en) * | 2015-01-30 | 2015-05-27 | 霍山鑫汇科技有限公司 | Nodular cast iron |
| CN107217195A (en) * | 2017-05-19 | 2017-09-29 | 成都亨通兆业精密机械有限公司 | A kind of high spherulitic iron crankshaft of intensity |
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| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140212 |