CN101709405A - High-intensity wear-resistant complex brass for automotive synchronizing rings - Google Patents
High-intensity wear-resistant complex brass for automotive synchronizing rings Download PDFInfo
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- CN101709405A CN101709405A CN200910213351A CN200910213351A CN101709405A CN 101709405 A CN101709405 A CN 101709405A CN 200910213351 A CN200910213351 A CN 200910213351A CN 200910213351 A CN200910213351 A CN 200910213351A CN 101709405 A CN101709405 A CN 101709405A
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- Prior art keywords
- complex brass
- synchronizing rings
- intensity
- brass
- wear
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Classifications
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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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D23/00—Details of mechanically-actuated clutches not specific for one distinct type
- F16D23/02—Arrangements for synchronisation, also for power-operated clutches
- F16D23/025—Synchro rings
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Conductive Materials (AREA)
Abstract
The invention discloses a high-intensity wear-resistant complex brass for automotive synchronizing rings, which comprises the following materials by weight percent: 27-32% of Zn, 3.5-4.5% of Al, 2.5-4.0% of Ni, 0.5-1.3% of Fe, 0.5-1.5% of Si, 1.5-2% of Co and balance of Cu. The complex brass has good plasticity and toughness under the high-intensity, high-hardness and high-wear-resistance conditions.
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: Zn:27-32%, Al:3.5-4.5%, Ni:2.5-4.0%, Fe:0.5-1.3%, Si:0.5-1.5%, Co:1.5-2.0%, surplus is that Cu reaches the impurity less than 0.05%.
Production technique is carried out according to melting-casting-extruding route.
Complex brass hardness HB value of the present invention is 197-241; Tensile strength is more than or equal to 635MPa; Yield strength is more than or equal to 470MPa; Unit elongation is more than or equal to 4%.
In order to reach above technical requirements, complex brass microstructure requirement of the present invention is: αGu Rongti+β sosoloid+equally distributed spherical strengthening phase, and described αGu Rongti content is not more than 30%.
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, material is transformed to oxidative wear from serious adhesive 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 3.5%-4.5%.
In copper zinc alloy, add ferro element, the few solid solution of iron surpasses other solubleness and promptly separates out with the particulate of rich iron phase in complex brass, as " artificial forming core " refinement ingot structure, prevent the grain growth of recrystallize, thereby improved the intensity of material and hardness, wear-resisting and erosion resistance.The present invention through repetition test relatively, it is optimum to think that the content of ferro element is controlled at 0.5%-1.3%.
In copper zinc alloy, add cobalt element, cobalt element can effectively reduce the grain-size of cast alloy, the shape of change crystal grain, improve tensile strength of alloys, hardness, and guarantee that alloy has ductility preferably, the present invention through repetition test relatively, it is optimum to think that the content of cobalt element is controlled at 1.5%-2%.
Add nickel element in copper zinc alloy, nickel element 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 2.5%-4%.
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 complex brass.The present invention through repetition test relatively, it is optimum to think that the content of element silicon is controlled at 0.5%-1.5%.
The purity of copper adopts highly purified copper greater than 99.99% among the present invention, can avoid sneaking into unnecessary impurity in the complex brass alloy, avoids destroying the intensity and the hardness of alloy.
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:62.35%, Zn:28%, and Al:3.50%, Ni:3.00%, Fe:0.80%, Si:0.50%, Co:1.80% and 0.05% impurity, the complex brass spare hardness HB value of shaping is more than or equal to 197; Tensile strength is more than or equal to 635MPa; Yield strength is more than or equal to 470MPa; Unit elongation is more than or equal to 4%.
Embodiment 2
The composition of each component is by weight percentage: Cu:59.55%, Zn:30%, and Al:4.00%, Ni:2.50%, Fe:1.00%, Si:1.00%, Co:1.90% and 0.05% impurity, the complex brass spare hardness HB of shaping is more than or equal to 220; Tensile strength is more than or equal to 670MPa; Yield strength is more than or equal to 530MPa; Unit elongation is more than or equal to being 4.5%.
Claims (5)
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: Zn:27-32%, Al:3.5-4.5%, Ni:2.5-4.0%, Fe:0.5-1.3%, Si:0.5-1.5%, Co:1.5-2.0%, surplus is that Cu 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 hardness HB value is 197-241; Tensile strength is more than or equal to 635MPa; Yield strength more than or equal to the 470MPa unit elongation more than or equal to 4%.
3. 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 requirement is: αGu Rongti+β sosoloid+equally distributed spherical strengthening phase.
4. a kind of high-intensity wear-resistant complex brass for automotive synchronizing rings according to claim 3 is characterized in that: described αGu Rongti content is not more than 30%.
5. according to the described a kind of high-intensity wear-resistant complex brass for automotive synchronizing rings of arbitrary claim among the claim 1-5, it is characterized in that: described copper purity is greater than 99.99%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910213351A CN101709405A (en) | 2009-11-03 | 2009-11-03 | High-intensity wear-resistant complex brass for automotive synchronizing rings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910213351A CN101709405A (en) | 2009-11-03 | 2009-11-03 | High-intensity wear-resistant complex brass for automotive synchronizing rings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101709405A true CN101709405A (en) | 2010-05-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN200910213351A Pending CN101709405A (en) | 2009-11-03 | 2009-11-03 | High-intensity wear-resistant complex brass for automotive synchronizing rings |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015117972A3 (en) * | 2014-02-04 | 2015-11-26 | Otto Fuchs - Kommanditgesellschaft - | Lubricant-compatible copper alloy |
| WO2017012283A3 (en) * | 2015-07-23 | 2017-03-23 | 宁波博威合金材料股份有限公司 | Cobalt silicide-containing copper alloy |
| US10280497B2 (en) | 2014-03-04 | 2019-05-07 | Otto Fuchs Kommanditgesellschaft | Aluminium bronze alloy, method for the production thereof and product made from aluminium bronze |
| US10316398B2 (en) | 2014-05-16 | 2019-06-11 | Otto Fuchs Kommanditgesellschaft | High-tensile brass alloy and alloy product |
| CN110629066A (en) * | 2019-09-27 | 2019-12-31 | 黄山市龙跃铜业有限公司 | High-strength corrosion-resistant brass material and preparation method thereof |
| US10570484B2 (en) | 2016-05-20 | 2020-02-25 | Otto Fuchs Kommanditgesellschaft | High tensile brass alloy and high tensile brass alloy product |
| US11359263B2 (en) | 2016-05-20 | 2022-06-14 | Otto Fuchs Kommanditgesellschaft | Lead-free high tensile brass alloy and high tensile brass alloy product |
-
2009
- 2009-11-03 CN CN200910213351A patent/CN101709405A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015117972A3 (en) * | 2014-02-04 | 2015-11-26 | Otto Fuchs - Kommanditgesellschaft - | Lubricant-compatible copper alloy |
| RU2661960C1 (en) * | 2014-02-04 | 2018-07-23 | Отто Фукс Коммандитгезельшафт | Lubricant-compatible copper alloy |
| US11427890B2 (en) | 2014-02-04 | 2022-08-30 | Otto Fuchs Kommanditgesellschaft | Lubricant-compatible copper alloy |
| US10280497B2 (en) | 2014-03-04 | 2019-05-07 | Otto Fuchs Kommanditgesellschaft | Aluminium bronze alloy, method for the production thereof and product made from aluminium bronze |
| US10316398B2 (en) | 2014-05-16 | 2019-06-11 | Otto Fuchs Kommanditgesellschaft | High-tensile brass alloy and alloy product |
| WO2017012283A3 (en) * | 2015-07-23 | 2017-03-23 | 宁波博威合金材料股份有限公司 | Cobalt silicide-containing copper alloy |
| EP3363922A4 (en) * | 2015-07-23 | 2019-08-21 | Ningbo Powerway Alloy Material Co., Ltd | Cobalt silicide-containing copper alloy |
| US10570484B2 (en) | 2016-05-20 | 2020-02-25 | Otto Fuchs Kommanditgesellschaft | High tensile brass alloy and high tensile brass alloy product |
| US11359263B2 (en) | 2016-05-20 | 2022-06-14 | Otto Fuchs Kommanditgesellschaft | Lead-free high tensile brass alloy and high tensile brass alloy product |
| CN110629066A (en) * | 2019-09-27 | 2019-12-31 | 黄山市龙跃铜业有限公司 | High-strength corrosion-resistant brass material and preparation method thereof |
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Open date: 20100519 |