CN101705388A - High-strength wear-resistant complex brass for automotive synchronizing ring - Google Patents
High-strength wear-resistant complex brass for automotive synchronizing ring Download PDFInfo
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- CN101705388A CN101705388A CN200910213350A CN200910213350A CN101705388A CN 101705388 A CN101705388 A CN 101705388A CN 200910213350 A CN200910213350 A CN 200910213350A CN 200910213350 A CN200910213350 A CN 200910213350A CN 101705388 A CN101705388 A CN 101705388A
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Abstract
The invention discloses a high-strength wear-resistant complex brass for an automotive synchronizing ring, which comprises the following components in percentage by weight: 59-65% of Cu, 1.7-3.7% of Al, 2.2-3.8% of Mn, 0.5-1.3% of Si, 0.07-0.27% of Cr, 0.2-0.6% of Ni, less than or equal to 0.6% of Fe, less than or equal to 0.18% of Pb, and the balance of Zn and less than 0.05% of impurities. The complex brass has good plasticity and toughness under the conditions of high strength, high hardness and high wear resistance.
Description
Technical field
The present invention relates to a kind of complex brass alloy, specifically relate to a kind of high-intensity wear-resistant complex brass for automotive synchronizing rings.
Background technology
At present, Material for Synchromesh Rings in Automobile Gear Box is mainly based on complex brass.Automotive synchronizing ring requires the every stable physical property of material, and fastness to rubbing and intensity meet certain requirements.Domestic low-grade vehicle is mainly satisfied in domestic complex brass production, production technique comprises that horizontal casting pipe, centrifugally cast pipe and semicontinuous casting-horizontal extruding etc. is several, wherein horizontal casting and extruding almost respectively account for half, yet defective such as material composition inequality, metal consumption are too high, structure property instability that above-mentioned technology all exists, simultaneously owing to the home equipment reason, the material inclusion defect of producing serious than imported materials and items, influence the synchronous ring quality greatly, more can't substitute import, seriously hinder the localization process of medium-to-high grade vehicle.
Summary of the invention
Goal of the invention:, the invention provides a kind of high-intensity wear-resistant complex brass for automotive synchronizing rings in order to change domestic synchronous ring with the not high reality of complex brass quality of materials class.
Technical scheme: in order to realize above purpose, a kind of high-intensity wear-resistant complex brass for automotive synchronizing rings of the present invention, the composition of each component is by weight percentage: Cu:59-65%, Al:1.7-3.7%, Mn:2.2-3.8%, Si:0.5-1.3%, Cr:0.07-0.27%, Ni:0.2-0.6%, Fe is smaller or equal to 0.6%, Pb is smaller or equal to 0.18%, and surplus is that Zn reaches the impurity less than 0.05%.Wherein said copper purity is greater than 99.99%.This complex brass microstructure requires: the Mn-Si metal strengthening is evenly separated out on the alpha+beta metal structure.
This complex brass Rockwell hardness HRB value is more than or equal to 85, and the HV30 value is more than or equal to 160; Tensile strength is more than or equal to 539MPa; Yield strength is more than or equal to 294MPa; Unit elongation is more than or equal to 12%.
The present invention adds aluminium in copper zinc alloy, can make the crystal grain of matrix phase obtain refinement and reinforcement, improve the intensity and the degree of moulding of material, and it is bigger than zinc at the ionization tendency of alloy surface, oxygen preferential and in the contact medium combines and forms firm oxide film, the serious adhesive wear of material is transformed to oxidative wear, greatly reduce the wearing and tearing of material, improved wear resistance.But the aluminium too high levels can make the plasticity of alloy sharply reduce, and has worsened the cold-forming property of alloy.The present invention through repetition test relatively, it is optimum to think that the content of aluminium element is controlled at 1.7%-3.7%.
In copper zinc alloy, add ferro element, the few solid solution of iron surpasses other solubleness and promptly separates out with rich iron phase particulate in brass, as " artificial forming core " refinement ingot structure, prevent that recrystal grain from growing up, thereby improved the intensity of material and hardness, wear-resisting and erosion resistance.The present invention through repetition test relatively thinks that the content of ferro element is controlled at below 0.6.
Add nickel element in copper zinc alloy, nickel can improve the intensity and the toughness of alloy, and can strengthen the anti-dezincify of alloy and the ability of stress corrosion resistant.The present invention through repetition test relatively, it is optimum to think that the content of nickel element is controlled at 0.2%-0.6%.
Add element silicon in copper zinc alloy, silicon all has higher solidity to corrosion in atmosphere and seawater, and stress corrosion resistant disruptive ability is higher than general brass.The present invention through repetition test relatively, it is optimum to think that the content of element silicon is controlled at 0.5%-1.3%.
In copper zinc alloy, add manganese element, manganese plays the solution strengthening effect, can with elements in conjunction such as aluminium, iron, zinc, further improve intensity, hardness, wear resistance and the solidity to corrosion of material, the present invention through repetition test relatively thinks that the content of manganese element is controlled at 2.2%-3.8%.
The purity of copper adopts highly purified copper greater than 99.99% among the present invention, can avoid sneaking into unnecessary impurity in brass alloys, avoids destroying the intensity and the hardness of alloy.
In copper-zinc-aluminium-manganese-iron-based alloy, add micro alloying element chromium, nickel, iron, lead, can further improve the over-all propertieies such as intensity, hardness, wear resistance, plasticity, toughness of material, and can improve the self-lubricating property of material.
Beneficial effect: the present invention compares with existing complex brass material and has the following advantages: high-intensity wear-resistant complex brass for automotive synchronizing rings provided by the invention, can satisfy run up, switch and the rub requirement of automobile under strong power; Under the condition of high-strength, high hard, high abrasion, has good plasticity and toughness again; And material composition is even behind the complex brass ingot casting, and structure property is stable.
Embodiment:
Below in conjunction with the drawings and specific embodiments, further illustrate the present invention, should understand these embodiment only is used to the present invention is described and is not used in and limit the scope of the invention, after having read the present invention, those skilled in the art all fall within the application's claims institute restricted portion to the modification of the various equivalent form of values of the present invention.
Embodiment 1
The composition of each component is by weight percentage: Cu:62.00%, Al:1.80%, Mn:2.50%, Si:1.00%, Cr:0.15%, Ni:0.30%, Fe:0.50%, Pb:0.15%, Zn:31.57%, impurity 0.03%.This complex brass Rockwell hardness HRB value is more than or equal to 90, and the HV30 value is more than or equal to 200; Tensile strength is more than or equal to 550MPa; Yield strength is more than or equal to 300MPa; Unit elongation is more than or equal to 15%.
Embodiment 2
The composition of each component is by weight percentage: Cu:60.00%, Al:2.20%, Mn:3.10%, Si:1.10%, Cr:0.22%, Ni:0.50%, Fe:0.30%, Pb:0.12%, Zn:32.42%, impurity 0.04%.This complex brass Rockwell hardness HRB value is more than or equal to 95, and the HV30 value is more than or equal to 200; Tensile strength is more than or equal to 600MPa; Yield strength is more than or equal to 350MPa; Unit elongation is more than or equal to 18%.
Claims (4)
1. high-intensity wear-resistant complex brass for automotive synchronizing rings, it is characterized in that: the composition of each component is by weight percentage: Cu:59-65%, Al:1.7-3.7%, Mn:2.2-3.8%, Si:0.5-1.3%, Cr:0.07-0.27%, Ni:0.2-0.6%, Fe is smaller or equal to 0.6%, and Pb is smaller or equal to 0.18%, and surplus is that Zn reaches the impurity less than 0.05%.
2. a kind of high-intensity wear-resistant complex brass for automotive synchronizing rings according to claim 1 is characterized in that: this complex brass microstructure requires: the Mn-Si metal strengthening is evenly separated out on the alpha+beta metal structure.
3. a kind of high-intensity wear-resistant complex brass for automotive synchronizing rings according to claim 1 is characterized in that: described copper purity is greater than 99.99%.
4. according to the described a kind of high-intensity wear-resistant complex brass for automotive synchronizing rings of arbitrary claim among the claim 1-3, it is characterized in that: this complex brass Rockwell hardness HRB value is more than or equal to 85, and the HV30 value is more than or equal to 160; Tensile strength is more than or equal to 539MPa; Yield strength is more than or equal to 294MPa; Unit elongation is more than or equal to 12%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910213350A CN101705388A (en) | 2009-11-03 | 2009-11-03 | High-strength wear-resistant complex brass for automotive synchronizing ring |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910213350A CN101705388A (en) | 2009-11-03 | 2009-11-03 | High-strength wear-resistant complex brass for automotive synchronizing ring |
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| CN101705388A true CN101705388A (en) | 2010-05-12 |
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| CN200910213350A Pending CN101705388A (en) | 2009-11-03 | 2009-11-03 | High-strength wear-resistant complex brass for automotive synchronizing ring |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102220514A (en) * | 2011-06-13 | 2011-10-19 | 苏州撼力铜合金材料有限公司 | Special low-lead copper alloy using silicon to replace lead for bathroom |
| CN102251142A (en) * | 2011-07-25 | 2011-11-23 | 龙工（上海）桥箱有限公司 | Spherical hinge material for travel motor |
| CN103589904A (en) * | 2013-08-16 | 2014-02-19 | 武汉泛洲中越合金有限公司 | High-strength and wear-resistant copper alloy and pipe-making method thereof |
| CN103589903A (en) * | 2013-08-16 | 2014-02-19 | 武汉泛洲中越合金有限公司 | High-strength and wear-resistant copper alloy and preparation method thereof |
| FR3029534A1 (en) * | 2014-12-08 | 2016-06-10 | Favi - Le Laiton Injecte | COPPER-BASED ALLOY AND MECHANICAL PART, ESPECIALLY GEAR FORK OBTAINED FROM THE ALLOY |
| CN106460096A (en) * | 2014-05-16 | 2017-02-22 | 奥托福克斯两合公司 | High-tensile brass alloy and alloy product |
| WO2020088738A1 (en) * | 2018-10-29 | 2020-05-07 | Otto Fuchs - Kommanditgesellschaft | Special brass alloy and special brass alloy product |
| CN112126816A (en) * | 2020-10-21 | 2020-12-25 | 绵阳市胜源合金制造有限公司 | Corrosion-resistant rare earth copper alloy |
| RU2763371C2 (en) * | 2020-06-15 | 2021-12-28 | Акционерное общество «АВТОВАЗ» | Brass for synchroniser rings and method for manufacturing preforms |
-
2009
- 2009-11-03 CN CN200910213350A patent/CN101705388A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102220514A (en) * | 2011-06-13 | 2011-10-19 | 苏州撼力铜合金材料有限公司 | Special low-lead copper alloy using silicon to replace lead for bathroom |
| CN102220514B (en) * | 2011-06-13 | 2012-12-12 | 苏州撼力铜合金材料有限公司 | Special low-lead copper alloy using silicon to replace lead for bathroom |
| CN102251142A (en) * | 2011-07-25 | 2011-11-23 | 龙工（上海）桥箱有限公司 | Spherical hinge material for travel motor |
| CN103589904A (en) * | 2013-08-16 | 2014-02-19 | 武汉泛洲中越合金有限公司 | High-strength and wear-resistant copper alloy and pipe-making method thereof |
| CN103589903A (en) * | 2013-08-16 | 2014-02-19 | 武汉泛洲中越合金有限公司 | High-strength and wear-resistant copper alloy and preparation method thereof |
| CN106460096B (en) * | 2014-05-16 | 2019-10-25 | 奥托福克斯两合公司 | High-strength brass alloy and alloy product |
| CN106460096A (en) * | 2014-05-16 | 2017-02-22 | 奥托福克斯两合公司 | High-tensile brass alloy and alloy product |
| CN108359841A (en) * | 2014-05-16 | 2018-08-03 | 奥托福克斯两合公司 | high-strength brass alloy and alloy product |
| WO2016092195A1 (en) | 2014-12-08 | 2016-06-16 | Favi- Le Laiton Injecte | Copper alloy and mechanical part, particularly a transmission selector fork, made from the alloy |
| FR3029534A1 (en) * | 2014-12-08 | 2016-06-10 | Favi - Le Laiton Injecte | COPPER-BASED ALLOY AND MECHANICAL PART, ESPECIALLY GEAR FORK OBTAINED FROM THE ALLOY |
| WO2020088738A1 (en) * | 2018-10-29 | 2020-05-07 | Otto Fuchs - Kommanditgesellschaft | Special brass alloy and special brass alloy product |
| RU2764687C1 (en) * | 2018-10-29 | 2022-01-19 | Отто Фукс - Коммандитгезельшафт | High-strength brass alloy and article from a high-strength brass alloy |
| US11572606B2 (en) | 2018-10-29 | 2023-02-07 | Otto Fuchs Kommanditgesellschaft | High-tensile brass alloy and high-tensile brass alloy product |
| RU2763371C2 (en) * | 2020-06-15 | 2021-12-28 | Акционерное общество «АВТОВАЗ» | Brass for synchroniser rings and method for manufacturing preforms |
| CN112126816A (en) * | 2020-10-21 | 2020-12-25 | 绵阳市胜源合金制造有限公司 | Corrosion-resistant rare earth copper alloy |
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Open date: 20100512 |