CN109082565A - Counter-pressure casting aluminum alloy materials are saved in a kind of steering - Google Patents
Counter-pressure casting aluminum alloy materials are saved in a kind of steering Download PDFInfo
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- CN109082565A CN109082565A CN201810892853.9A CN201810892853A CN109082565A CN 109082565 A CN109082565 A CN 109082565A CN 201810892853 A CN201810892853 A CN 201810892853A CN 109082565 A CN109082565 A CN 109082565A
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- Prior art keywords
- counter
- pressure casting
- aluminum alloy
- impurity elements
- steering
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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
- C22C21/00—Alloys based on aluminium
- C22C21/02—Alloys based on aluminium with silicon as the next major constituent
Abstract
The present invention relates to a kind of steerings to save counter-pressure casting aluminum alloy materials, which is characterized in that the ingredient including following mass percent: Si 7.12-7.15%, Fe 0.110-0.125%, Mg 0.33-0.35%, Ti 0.177-0.180%, Sr 0.013-0.015%, Mn≤0.026%, Cu 0.01%, Zn 0.05%, surplus are Al and inevitable other impurity elements, the single content of other impurity elements is less than 0.05%, and total amount is less than 0.11%.Aluminium alloy counter-pressure casting material of the present invention, metallographic structure are evenly distributed, and finished parts surface gloss is excellent, it is easy to machining, satisfactory mechanical property, by test: tensile strength is 326MPa or more, yield strength is 250Mpa or more, hardness 100HB, and elongation percentage can reach 11%.
Description
Technical field
The present invention relates to a kind of aluminum alloy materials, especially a kind of aluminum alloy materials of counter-pressure casting belong to aluminium alloy material
Expect technical field.
Background technique
Knuckle is one of the important part on automobile steering system, is mainly used for bearing automobile front load, bearing is simultaneously
Band motor car wheel stub rotates and makes motor turning.Knuckle subjects variational shock loading, and it is necessary to have very high intensity.
Knuckle is connected with parts such as knuckle post, drag link, damper and brakes, and structure is complicated, discontinuity, required precision
It is higher.
Existing knuckle industry technology status, manufacturing procedure complexity, high cost defect, existing slewing journal structure are multiple
Miscellaneous, weight is larger, increases the weight of vehicle, simultaneously because the limitation of structure design, rigidity requirement and intensity requirement are equal
It is undesirable, drastically influence vehicle comfort and handling and service life.
Counter-pressure casting is to cast the most up-to-date techniques equipment of aluminium knuckle, and counter-pressure casting pouring technology uses bottom filling mould
Formula has preferable mold-filling capacity, can overcome the defect of conventional cast part, can eliminate the pin hole and fine fisssure of interiors of products
Line finally obtains the casting of dense structure.For cast iron as main material, plasticity and elongation percentage are very low, are easy to happen brittle failure,
It is unfavorable for drilling and machinability, easily leads to that cutter life is low, the processed surface smoothness of product is poor.
A kind of novel aluminium alloy counter-pressure casting material is developed, as a result, to replace traditional cast iron materials to turn to improvement
The comprehensive performance of section has great importance.
Summary of the invention
The present invention is intended to provide counter-pressure casting aluminum alloy materials are saved in a kind of steering, turned by the aluminium alloy of the cast
There is good casting character, anti-fatigue performance and toughness to section；The weight for alleviating product itself and vehicle body, is conducive to automobile
Light and fast is steady when steering；Make the reduction of automobile oil consumption, improves fuel economy, alleviate environmental pollution；Scientific structure design
Rationally, it is conducive to installation and machining.
The present invention is achieved by the following technical solutions:
Counter-pressure casting aluminum alloy materials are saved in a kind of steering, are characterized in that, including following mass percent at
Point: Si 7.12-7.15%, Fe 0.110-0.125%, Mg 0.33-0.35%, Ti 0.177-0.180%, Sr 0.013-
0.015%, Mn≤0.026%, Cu 0.01%, Zn 0.05%, surplus are Al and inevitable other impurity elements；
Preferred mass percent ingredient are as follows: Si 7.12%, Fe 0.11%, Mg 0.33%, Ti 0.177%, Sr
0.013%, Mn 0.026%, Cu 0.01%, Zn 0.05%, surplus are Al and inevitable other impurity elements；
The single content of other impurity elements is less than 0.05%, and total amount is less than 0.11%.
A kind of steering of the invention is saved in counter-pressure casting aluminum alloy materials, silicon be improve aluminium alloy mobility it is main at
Point, either eutectic or hypereutectic it can obtain best mobility.In addition, silicon can also improve tensile strength, hardness, cut
Cut hardness when performance and high temperature.And there is fabulous casting character and corrosion resistance；Copper is dissolved into aluminium alloy, then
Mechanical performance can be made to be improved, machinability number, but will lead to corrosion resistance reduction, so content can not be excessively high；
Magnesium is used to strengthen aluminium alloy, and tensile strength can be promoted significantly；The manganese element of certain content is added simultaneously, then it can be with
Hot cracking tendency is reduced, compound homogeneous precipitation is made, improves corrosion resistance and casting character；Titanium elements and strontium element are in this ingredient
It is to be added as intermediate alloy in aluminium alloy.Titanium is most common addition element in aluminium alloy, and titanium and aluminium are combined, formed
TiAl3 phase becomes heterogeneous necleus when crystallization, plays the role of refining cast sturcture；Strontium is a kind of surface active element,
In crystallography, strontium can be used to change the behavior of intermetallic compound phase, therefore the addition of strontium can be used as alterant improvement
The processing performance of alloy and the quality of final products, and strontium element also has long rotten effective time, significant effect and reproduction
The advantages that property is good, improves the mechanical property of material.
The atoms outermost electronics structure of titanium elements and element silicon, crystal type, atomic size differ greatly, and the two can only
Limit solid solution is formed, but the limit solid solution formed can reduce transformation temperature, reduce phase transition temperature, so that it is brilliant to play stable β
The effect of phase.
Strontium can then be made rotten with good long-term effect with refining eutectic silicon.Magnesium is occurred as individual hardening agent
, it does not act synergistically with silicon, titanium, strontium these three alloying elements in the alloy of AL10021 proportion.
Detailed description of the invention
Fig. 1: knuckle structure figure made of aluminum alloy materials of the present invention.
Specific embodiment
The specific embodiment that counter-pressure casting aluminum alloy materials are saved in a kind of steering of the present invention is given below, is used to this hair
Bright structure and principle is described in further detail.
Embodiment one
Counter-pressure casting aluminum alloy materials are saved in a kind of steering, the ingredient including following mass percent: Si7.15%, Fe
0.125%, Mg 0.35%, Ti 0.180%, Sr 0.015%, Mn 0.026%, Cu 0.01%, Zn 0.05%, surplus are
Al and inevitably other impurity elements；Less than 0.05%, total amount is less than the single content of other impurity elements
0.11%.
Embodiment two
Counter-pressure casting aluminum alloy materials are saved in a kind of steering, the ingredient including following mass percent: Si 7.12%, Fe
0.11%, Mg 0.33%, Ti 0.177%, Sr 0.013%, Mn 0.026%, Cu 0.01%, Zn 0.05%, surplus are
Al and inevitably other impurity elements；Less than 0.05%, total amount is less than the single content of other impurity elements
0.11%.
Embodiment three
Counter-pressure casting aluminum alloy materials are saved in a kind of steering, are characterized in that, including following mass percent at
Point: Si 7.14%, Fe 0.12%, Mg 0.34%, Ti 0.179%, Sr 0.014%, Mn 0.024%, Cu 0.01%,
Zn 0.05%, surplus are Al and inevitable other impurity elements；The single content of other impurity elements is less than
0.05%, total amount is less than 0.11%.
The present invention is added the alloying elements such as suitable silicon, titanium, strontium, copper, magnesium, manganese to fine aluminium and has been made with metallographic structure point
Cloth is uniform, and finished parts surface gloss is excellent, is easy to machining, the aluminum alloy materials of satisfactory mechanical property, about aluminium alloy
The proportion of material, according to actual production technique, the present invention is mainly adjusted between the elements such as silicon, magnesium, titanium, strontium.
It is that the present invention carries out pilot production to the molten aluminum of different ratio below, the product mechanical properties data tested:
After the molten aluminum of above-mentioned five groups of different ratios carries out pilot production, test product mechanical properties data simultaneously carries out transverse direction
Comparison, the product mechanical properties data obtained using the molten aluminum of the 5th group of proportion are optimal.
The aluminium alloy counter-pressure casting material obtained by the above various embodiments, metallographic structure are evenly distributed, finished parts surface
Glossiness is excellent, is easy to machining, satisfactory mechanical property, by test: tensile strength is 326MPa or more, and yield strength is
250Mpa or more, hardness 100HB, elongation percentage can reach 11%.
Claims (2)
1. counter-pressure casting aluminum alloy materials are saved in a kind of steering, which is characterized in that the ingredient including following mass percent: Si
7.12-7.15%, Fe 0.110-0.125%, Mg 0.33-0.35%, Ti 0.177-0.180%, Sr 0.013-
0.015%, Mn≤0.026%, Cu 0.01%, Zn 0.05%, surplus are Al and inevitable other impurity elements, institute
The single content of other impurity elements is stated less than 0.05%, total amount is less than 0.11%.
2. a kind of aluminium alloy founding materials as described in claim 1, are characterized in that
Ingredient including following mass percent: Si 7.12%, Fe 0.11%, Mg 0.33%, Ti 0.177%, Sr
0.013%, Mn 0.026%, Cu 0.01%, Zn 0.05%, surplus are Al and inevitable other impurity elements；Institute
The single content of other impurity elements is stated less than 0.05%, total amount is less than 0.11%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810892853.9A CN109082565A (en) | 2018-08-07 | 2018-08-07 | Counter-pressure casting aluminum alloy materials are saved in a kind of steering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810892853.9A CN109082565A (en) | 2018-08-07 | 2018-08-07 | Counter-pressure casting aluminum alloy materials are saved in a kind of steering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109082565A true CN109082565A (en) | 2018-12-25 |
Family
ID=64834245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810892853.9A Pending CN109082565A (en) | 2018-08-07 | 2018-08-07 | Counter-pressure casting aluminum alloy materials are saved in a kind of steering |
Country Status (1)
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1555423A (en) * | 2001-07-25 | 2004-12-15 | �Ѻ͵繤��ʽ���� | Aluminum alloy excellent in machinability, and aluminum alloy material and method for production thereof |
| CN101514420A (en) * | 2009-04-13 | 2009-08-26 | 清华大学 | Aluminum alloy for automobile wheel hub |
| CN102925762A (en) * | 2012-11-05 | 2013-02-13 | 虞海香 | Aluminum alloy for high-pressure casting |
| CN105970032A (en) * | 2016-05-26 | 2016-09-28 | 银亿集团有限公司 | Aluminum alloy for producing rear axle wheel hub connector and preparation method of aluminum alloy |
| CN106244957A (en) * | 2016-03-24 | 2016-12-21 | 上海汇众汽车制造有限公司 | The Technology for Heating Processing of AlSi7Mg aluminium alloy castings |
-
2018
- 2018-08-07 CN CN201810892853.9A patent/CN109082565A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1555423A (en) * | 2001-07-25 | 2004-12-15 | �Ѻ͵繤��ʽ���� | Aluminum alloy excellent in machinability, and aluminum alloy material and method for production thereof |
| CN101514420A (en) * | 2009-04-13 | 2009-08-26 | 清华大学 | Aluminum alloy for automobile wheel hub |
| CN102925762A (en) * | 2012-11-05 | 2013-02-13 | 虞海香 | Aluminum alloy for high-pressure casting |
| CN106244957A (en) * | 2016-03-24 | 2016-12-21 | 上海汇众汽车制造有限公司 | The Technology for Heating Processing of AlSi7Mg aluminium alloy castings |
| CN105970032A (en) * | 2016-05-26 | 2016-09-28 | 银亿集团有限公司 | Aluminum alloy for producing rear axle wheel hub connector and preparation method of aluminum alloy |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181225 |
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| WD01 | Invention patent application deemed withdrawn after publication |