CN102319756A - Preparation method for aluminum alloy bar - Google Patents

Preparation method for aluminum alloy bar Download PDF

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CN102319756A
CN102319756A CN201110260517A CN201110260517A CN102319756A CN 102319756 A CN102319756 A CN 102319756A CN 201110260517 A CN201110260517 A CN 201110260517A CN 201110260517 A CN201110260517 A CN 201110260517A CN 102319756 A CN102319756 A CN 102319756A
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aluminum alloy
aluminum
rod
temperature
process
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CN201110260517A
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张成斌
杨纯梅
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西南铝业(集团)有限责任公司
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Abstract

Embodiments provided by the invention disclose a preparation method for an aluminum alloy bar. The method is applicable for producing the aluminum alloy bar having an alloy brand of 6A82. The method provided by the present invention comprises: placing 6000 series aluminum alloy ingots into an extrusion cylinder of an extruder to carry out extruding to obtain the aluminum alloy bar, wherein the extruding temperature is 520-540 DEG C, the temperature of the extrusion cylinder is 460 DEG C, the extruding speed is 1.0-4.0 sec/mm; placing the aluminum alloy bar in a hardening furnace to carry out a quenching treatment, wherein the quenching temperature is 540 DEG C. The produced 6A82 aluminum alloy bar through the method provided by the present invention has the tensile strength more than or equal to 400 MPa, and the coarse grain ring depth less than or equal to 5 mm.

Description

一种铝合金棒材的制造方法 A method for producing an aluminum alloy bars

技术领域 FIELD

[0001] 本发明涉及合金技术领域,尤其涉及一种铝合金棒材的制造方法。 [0001] Technical Field The present invention relates to alloys, in particular, it relates to a method for producing an aluminum alloy rod. 背景技术 Background technique

[0002] 汽车制造需要消耗大量合金铝材料。 [0002] The automobile manufacturers requires large amounts of aluminum alloy material. 其中,汽车底盘控制臂通常采用合金铝材料制造,要求足够大的强度,以保证行车的安全。 Wherein the car suspension arm usually used for producing aluminum alloy require sufficient strength to ensure traffic safety.

[0003] 目前,汽车制造商使用合金牌号为6082的铝合金棒材制造汽车底盘控制臂。 [0003] At present, car manufacturers use an alloy designation of 6082 aluminum rod manufacturing automobile suspension arm. 6082 铝合金是6000系铝合金中强度较高的一个品种,其抗拉强度大于等于310MPa,粗晶环深度小于等于8mm,该合金已连续几年被汽车制造商采用。 6082 is an aluminum alloy in a variety of high strength 6000 series aluminum alloy having a tensile strength not less than 310MPa, or less coarse-crystalline depth 8mm, the alloy has for several years been automobile manufacturers.

[0004] 但是,汽车制造商反馈,6082铝合金产品特性为310MPa的抗拉强度以及8mm的粗晶环深度,不能够满足今后提高汽车底盘控制臂抗拉强度和安全性的要求,因此汽车制造商要求对6082铝合金进行改良,以达到更高的抗拉强度以及更浅的粗晶环深度。 [0004] However, vehicle manufacturers feedback, a tensile strength of 6082 aluminum alloy product characteristics and the coarse-crystalline 310MPa depth of 8mm, not able to meet the future requirements of automotive chassis control system to improve the tensile strength and safety arm, so automakers List of 6082 aluminum alloy requires improvement in order to achieve a higher tensile strength and coarse-crystalline shallower depth.

发明内容 SUMMARY

[0005] 有鉴于此,本发明提供了一种铝合金棒材的制造方法,用于改良6082铝合金的产品性能,使铝合金棒材的抗拉强度大于等于400MPa,粗晶环深度小于等于5mm。 [0005] Accordingly, the present invention provides a method for producing an aluminum alloy rod, for improving performance of 6082 aluminum alloy, tensile strength is not less than 400 MPa or an aluminum alloy rod, the depth of less coarse-crystalline 5mm. 并且该改良后的合金牌号为6A82。 Alloy and after the improvement of 6A82.

[0006] 一种铝合金棒材的制造方法,包括: [0006] A method for producing an aluminum alloy rod, comprising:

[0007] 将6000系铝合金的铸锭放入挤压机挤压筒中进行挤压,得到铝合金棒材,挤压温度为520〜540°C,挤压筒温度为460°C,挤压速度为1. 0〜4. Osec/mm ; [0007] The 6000 series aluminum alloy ingot is extruded from the extruder into the extrusion cylinder, to obtain an aluminum alloy bars, extrusion temperature is 520~540 ° C, the extrusion barrel temperature of 460 ° C, extrusion speed 1. 0~4 Osec / mm.;

[0008] 将所述铝合金棒材放入淬火炉中进行淬火处理,淬火温度为540°C。 [0008] quenching the aluminum alloy rod into the furnace for quenching, quenching temperature of 540 ° C.

[0009] 通过以上技术方案,可以生产出合金牌号为6A82的铝合金棒材,所述棒材特性为抗拉强度大于等于400MPa,粗晶环深度小于等于5mm,满足汽车制造商提高汽车底盘控制臂抗拉强度和安全性的要求。 [0009] By the above aspect, it is possible to produce aluminum alloy designation 6A82 rod, said rod is a characteristic tensile strength greater than 400 MPa or equal to, or less coarse-crystalline depth 5mm, meet the automotive manufacturers to improve automotive chassis control arm tensile strength and safety requirements.

附图说明 BRIEF DESCRIPTION

[0010] 图1为本发明第一实施例方法流程图; [0010] FIG. 1 is a flowchart of the first embodiment of a method embodiment of the present invention;

[0011] 图2为本发明第二实施例方法流程图; [0011] FIG 2 is a flowchart of a second embodiment of a method embodiment of the invention;

[0012] 图3为本发明第二实施例淬火温度与力学性能关系曲线图。 [0012] FIG. 3 graph illustrating the relationship between the quenching temperature and the mechanical properties of a second embodiment of the present invention.

具体实施方式 Detailed ways

[0013] 本发明实施例提供了一种铝合金棒材的制造方法,用于生产合金牌号为6A82的铝合金棒材,其抗拉强度大于等于400MPa,粗晶环深度小于等于5mm。 [0013] The present invention provides a method for producing an aluminum alloy rod, the designations for the production of aluminum alloy rod 6A82, which is equal to 400 MPa or a tensile strength greater than, or less coarse-crystalline depth 5mm. 以下对本发明方法进行详细说明。 Hereinafter, the method of the present invention will be described in detail.

[0014] 本发明第一实施例中制造合金牌号为6A82的铝合金棒材的方法主要步骤流程图请参见图1,主要包括:[0015] 101、挤压。 The method of manufacturing Example Alloy Alloy Bar 6A82 is the main steps of the first embodiment [0014] Referring to FIG 1 a flow diagram of the present invention, including: [0015] 101 extrusion.

[0016] 为了使所需产品大体成形,将6000系铝合金的铸锭放入挤压机的挤压筒中,启动挤压机进行挤压,得到铝合金棒材。 [0016] In order to make the desired product is generally shaped, the 6000 series aluminum alloy ingot was placed in the extruder barrel of an extruder, extruded starting extruder, to obtain an aluminum alloy bar.

[0017] 其中,铝合金棒材的直径将根据实际制造需要进行调整,挤压温度为520〜 540°C,挤压筒温度为460°C,挤压速度为1. 0〜4. Osec/mm。 [0017] wherein the diameter of the aluminum alloy rods will need to be adjusted according to actual production, the extrusion temperature of 520~ 540 ° C, the extrusion barrel temperature of 460 ° C, extruding rate was 1. 0~4. Osec / mm. 后续将对本步骤中的挤压制度如何确定进行说明。 Follow this step will be how to determine the extrusion system is described.

[0018] 102、淬火。 [0018] 102, quenching.

[0019] 为了使铝合金棒材获得非扩散型转变组织,将所述铝合金棒材放入淬火炉中进行淬火处理。 [0019] In order to obtain a non-aluminum diffusion shift rod tissue, quenching the aluminum alloy rod into the furnace for quenching.

[0020] 其中,淬火温度为540°C,淬火保温时间需根据步骤101中确定的铝合金棒材直径的大小进行调整。 [0020] wherein, the quenching temperature of 540 ° C, the holding time required to quench adjusted according to the size of the diameter of the rod in the aluminum alloy is determined in step 101. 后续将对本步骤中的淬火制度如何确定进行说明。 Follow this step will be how to determine the quenching system is described.

[0021] 本实施例方法用于生产合金牌号为6A82的铝合金棒材,在6000系铝合金制造工艺基础上,挤压制度确定为挤压温度:520〜540°C,挤压筒温度:460°C,挤压速度:1. O〜 4. Osec/mm,淬火制度确定为淬火温度:540°C,时效制度确定为温度升至175°C并保温8小时。 [0021] The present embodiment is a method for producing aluminum alloy grades of rod 6A82, the process based on the 6000-series aluminum alloy, identified as extrusion temperature of the extrusion system: 520~540 ° C, the extrusion cylinder temperature: 460 ° C, extrusion speed:. 1 O~ 4. Osec / mm, determined as quenching system quenching temperature: 540 ° C, determined as the aging system temperature was raised to 175 ° C and held for 8 hours. 通过以上的制造方法生产的6A82铝合金棒材,抗拉强度大于等于400MPa,粗晶环深度小于等于5mm。 Produced by the above method of producing aluminum rod 6A82, tensile strength greater than 400 MPa or equal to, or less coarse-crystalline depth 5mm.

[0022] 本发明第二实施例将对第一实施所述的6A82铝合金棒材制造方法流程进行详细的描述,并对如何确定新生产工艺提供实验依据,本方法流程图请参见图2,主要包括: [0022] The second embodiment of the present invention will 6A82 first embodiment of the manufacturing method of the aluminum alloy rod will be described in detail, how to determine the new production process and provide an experimental basis, see Figure 2 a flowchart of the method, mainly includes:

[0023] 201、配料。 [0023] 201, ingredients.

[0024] 按6000系铝合金成份重量百分比:Si 0. 95〜1. 15%,Fe彡0. 30%,Cu 0. 40〜 0. 50 %, Mn 0. 40 〜0. 55 %,Mg 0. 85 〜1. 10 %,Cr 0. 10 〜0. 20 %,Zn 彡0. 25 %, Zr^O. 05%,Ti 0.01〜0. 10%和余量的Al准备合金原料。 [0024] Press 6000 series aluminum alloy composition by weight:. Si 0. 95~1 15%, Fe San 0. 30%, Cu 0. 40~ 0. 50%, Mn 0. 40 ~0 55%, Mg. 0. 85 ~1. 10%, Cr 0. 10 ~0. 20%, Zn San 0. 25%, Zr ^ O. 05%, Ti 0.01~0. 10%, and the balance Al alloy materials prepared. 准备好原料后,可进行下一步熔炼步骤。 After preparing raw materials, smelting step to the next step.

[0025] 其中,6000系铝合金包括本发明制造的6A82铝合金和现在技术的6082铝合金都是按照上述配料重量百分比进行原料配比的。 [0025] wherein, 6000 series aluminum alloy comprising an aluminum alloy of the present invention and are now produced 6A82 6082 aluminum ratio of raw materials technology are carried out according to the above ingredients by weight percentages.

[0026] 本实施例相关实验中,在6000系铝合金成份重量百分比范围基础上,研究4种具体合金成份配料比例所制造的铝合金的力学性能。 [0026] Example embodiment of the present experiments, the 6000-series aluminum alloy composition by weight percent ranges based on the study of the mechanical properties of four kinds of specific ingredient proportions alloy components of the aluminum alloy produced. 设计合金成份时,取Mg、Si含量的上下限进行交叉配料,其它金属成份取中间值,以研究合金成份配料比例对铝合金棒材最终力学性能的影响,4种实验用合金成份配料比例请参见表1。 When designing alloy composition, taking Mg, the lower limit of the Si content on the cross ingredients, and other metal components intermediate value, to investigate the effect of alloy composition on the final ingredient proportions Mechanical Properties of Aluminum bars, four kinds of experiments with the alloy composition ratio of ingredients Please See Table 1.

[0027] [0027]

Figure CN102319756AD00051

[0028] 表1 [0028] TABLE 1

[0029] 运用控制变量法,将上述4种成份的铝合金材料制造成直径Φ 162mm的实验用铸锭,再将所述实验用铸锭挤压成直径Φ 35mm的实验用铝合金棒材,最后经过淬火和人工时效后制造成品,并用于力学性能实验,可得4种具体合金成份配料比例产品力学性能表,请参见表2。 [0029] Application of the control variable method, the above four components for producing an aluminum alloy material having a diameter Φ 162mm experimental ingot, then the ingot is extruded experimental Φ 35mm diameter test bars of aluminum alloy, Finally, quenching and artificial aging after the fabrication yield, and mechanical properties for the experiment, four kinds of available specific alloy composition ratio of product ingredients mechanical performance table, see table 2.

[0030] [0030]

Figure CN102319756AD00052

[0031]表 2 [0031] TABLE 2

[0032] 从表2可以看出,在6A82铝合金标准成份配料比例范围内,调整合金成份对棒材最终力学性能的影响不大。 [0032] As can be seen from Table 2, the proportion of ingredients within the standard range 6A82 alloy composition, adjusting the alloy composition has little effect on the mechanical properties of the final bars.

[0033] 202、熔炼。 [0033] 202, melting.

[0034] 为了使所述合金原料熔化,将所述合金原料放入石墨坩埚中熔炼,熔炼温度为740〜760°C,使得所述合金原料完全熔化,并得到成份分布均勻的熔体。 [0034] In order for the melted alloy material, the alloy starting material into a graphite crucible melting, the melting temperature of 740~760 ° C, such that the alloy is completely melted starting material, to obtain a homogeneous melt composition and distribution.

[0035] 203、熔体净化。 [0035] 203, melt purification.

[0036] 为了得到高纯度合金熔体,对所述熔体进行熔体净化处理,熔体净化过程先进行熔剂精炼,再进行氩气精炼10〜15min,随后对熔体进行扒渣以去除杂质,最后静置,准备铸造成铸锭。 [0036] In order to obtain high purity alloy melt, the melt is melt purification, the purification process before the melt flux for refining, then the refined argon 10~15min, subsequently slag melt to remove impurities Finally, standing, ready to cast into an ingot.

[0037] 204、铸造。 [0037] 204, casting.

[0038] 为了便于挤压处理,必须先对熔体净化后的熔体进行铸造成铸锭的处理。 [0038] In order to facilitate the extrusion process, the melt must be purified after melt processing into cast ingot. 其中,铸造温度为730〜740°C,铸造速度为100〜110mm/min,铸造水压为0. 06〜0. 12MPa。 Wherein the casting temperature is 730~740 ° C, a casting speed 100~110mm / min, the casting pressure is 0. 06~0. 12MPa.

[0039] 205、挤压。 [0039] 205 extrusion.

[0040] 为了使所需产品大体成形,将所述铸锭放入挤压机的挤压筒中,启动挤压机进行挤压,得到铝合金棒材。 [0040] In order to make the desired product substantially shaped ingot into the extrusion cylinder in the extruder, extruded starting extruder, to obtain an aluminum alloy bar. 这里的铝合金棒材还比较粗糙,弯曲度较大,而且挤压是连续操作的,所以挤压出来的铝合金棒材长度较长,需要进行后续处理。 Here aluminum rod is still relatively coarse, a larger degree of curvature, and the extrusion is a continuous operation, so the longer the length of extruded aluminum bars, the need for subsequent processing.

[0041] 其中,铝合金棒材的直径将根据实际制造需要进行调整,挤压温度为520〜 540°C,挤压筒温度为460°C,挤压速度为1. O〜4. Osec/mm。 [0041] wherein the diameter of the aluminum alloy rods will need to be adjusted according to actual production, the extrusion temperature of 520~ 540 ° C, the extrusion barrel temperature of 460 ° C, extruding rate was 1. O~4. Osec / mm.

[0042] 本实施例相关实验中,运用控制变量法,采用相同的挤压速度、淬火温度和时效制度,所述挤压速度为2. O〜2. kec/mm,所述淬火温度为540°C,所述时效制度为升高温度至175°C后保温8小时,做挤压温度实验,研究挤压温度对铝合金棒材力学性能的影响,取4个实验用铝合金棒材,其直径均为Φ65πιπι,采用不同的挤压温度,并测量所述各实验用铝合金棒材的抗拉强度、屈服强度和延伸率,实验数据请参见表3。 [0042] Example embodiment of the present experiments, the use of process control variables, using the same extrusion speed, quenching and aging temperature regime, the extruding rate was 2. O~2. Kec / mm, the quenching temperature is 540 ° C, the aging system is holding the temperature was raised to 175 ° C 8 hours to make the temperature of the extrusion experiments, study the effect of temperature on mechanical properties of extruded aluminum bars, taking four experimental aluminum alloy rod, diameter are Φ65πιπι, different extrusion temperature, and measuring the tensile strength of each experimental alloy bars, yield strength and elongation, the experimental data, see Table 3.

[0043] [0043]

Figure CN102319756AD00061

[0044]表 3 [0044] TABLE 3

[0045] 从表3中的实验数据可以看出,随着挤压温度的升高,铝合金棒材的抗拉强度和屈服强度不断增大,而延伸率的变化规律却相反。 [0045] The experiment can be seen from the data in Table 3, as the extrusion temperature increases, the aluminum bars increasing tensile strength and yield strength, elongation and variation is the opposite.

[0046] 本实施例相关实验中,还须研究挤压温度对粗晶环的影响,本实验切取了一部分实验用6Α82铝合金棒材试样做低倍性能测试,其中,实验用6Α82铝合金棒材有5个试样, 直径分别为Φ 40mm、Φ 50mm和Φ 65mm,这三个规格为实际生产时的常用规格,另外挤压筒筒温为460°C,挤压速度为2. O〜2. kec/mm。 [0046] Example embodiment of the present experiments, the effect of temperature on the extrusion must study coarse-crystalline, this experiment part of the experiment do cut macroscopic properties of the sample test bars 6Α82 aluminum alloy, wherein the alloy experiment 6Α82 bar 5 samples, each having a diameter Φ 40mm, Φ 50mm and Φ 65mm, these three specifications common types of actual production time, additional squeezing cylinder barrel temperature of 460 ° C, extruding rate was 2. O ~2. kec / mm. 结合实际情况,取以下5组实验数据,用于检测挤压温度对粗晶环深度的影响,实验数据请参见表4。 The actual situation, to take the following five groups of experimental data, for detecting impact of extrusion temperature on a coarse-crystalline depth See Table 4 for experimental data.

[0047] [0047]

Figure CN102319756AD00071

[0048] 表4 [0048] TABLE 4

[0049] 从以上数据可以看出,挤压筒筒温恒定时,挤压温度对粗晶环深度有一定影响,随着挤压温度的升高粗晶环深度在不断减小,但是,实际上粗晶环深度< 3mm即能满足使用需要。 [0049] As can be seen from the above data, when the extrusion cylinder barrel temperature constant, the extrusion temperature has a certain impact on the depth of coarse-crystalline, with increasing extrusion temperature of the coarse-crystalline decreasing depth, however, the actual depth on a coarse-crystalline <3mm that can meet the needs.

[0050] 结合表3和表4的分析,本发明方法挤压制度的挤压温度确定为520〜540°C。 [0050] The binding analysis of Tables 3 and 4, the extrusion method of the present invention the extrusion temperature is determined System 520~540 ° C.

[0051] 本实施例相关实验中,运用控制变量法,采用相同的挤压温度、淬火温度和时效制度,所述挤压温度为540°C、所述淬火温度为540°C和所述时效制度为升高温度至175°C后保温8小时,做挤压速度实验,研究挤压速度对合金力学性能的影响,3个实验用铝合金棒材的直径为Φ50πιπι和Φ65πιπι,采用不同的挤压速度,并测量各实验用铝合金棒材的抗拉强度、屈服强度和延伸率,实验数据请参见表5。 [0051] 540 ° C and the aging experiments of the present embodiment, the operation control method of a variable, the same extrusion temperatures, quench temperature, and aging system, the extrusion temperature is 540 ° C, the quenching temperature is system incubated at 8 hours after raising the temperature to 175 ° C, extrusion speed to do the experiment, extrusion speed research on mechanical properties of the alloy, with a diameter of 3 experiments for the aluminum bars and Φ50πιπι Φ65πιπι, different extrusion pressurizing speed, and the tensile strength was measured for each experimental aluminum alloy bars, yield strength and elongation, the experimental data, see Table 5.

[0052] [0052]

Figure CN102319756AD00072

[0053] 表5 [0053] TABLE 5

[0054] 从上表数据可以看出,挤压速度的变化对实验用铝合金棒材的力学性能影响不显著,因此可以不考虑挤压速度的变化对产品力学性能的影响。 [0054] As can be seen from the data table, the extrusion speed variation on the mechanical properties of the experimental alloy rod is not significant, and therefore may not account for the effects on the mechanical properties of extrusion speed of the product.

[0055] 本实施例相关实验中,还须研究挤压速度对粗晶环的影响,本实验中,实验用6Α82 铝合金棒材有3个试样,直径分别为Φ 50mm和Φ 65mm,另外挤压温度为。 [0055] Example embodiment of the present experiments, the extrusion speed must Effects of coarse-crystalline, the present experiment, the experimental 6Α82 Alloy Bar has three samples, each having a diameter Φ 50mm and Φ 65mm, further extrusion temperature. 结合实际, 取以下3组实验数据,用于检测挤压速度对粗晶环深度的影响,实验数据请参见表6。 Actual, take the following three sets of experimental data, for detecting impact on the extrusion speed coarse-crystalline depth experimental data see Table 6.

[0056] [0056]

Figure CN102319756AD00081

[0057]表 6 [0057] TABLE 6

[0058] 从表6的数据中可以看出,挤压速度在1.0〜4.0seC/mm范围时粗晶环深度均(2mm,这个数据远远小于粗晶环深度5mm的要求,因为可以看出挤压速度对铝合金棒材力学性能的影响不大。 [0058] As can be seen from the data of Table 6, when the extrusion speed 1.0~4.0seC / mm coarse-crystalline range have a depth (2mm, this data is much smaller than the coarse-crystalline 5mm desired depth, as can be seen extrusion speed has little effect on the mechanical properties of aluminum alloy bars.

[0059] 综合表5和表6的分析,本发明方法挤压制度的挤压速度确定为1. 0〜4. Osec/ mm。 Extrusion speed Comprehensive analysis of Table 5 [0059] and Table 6, the method of the present invention is determined as extrusion system 1. 0~4. Osec / mm.

[0060] 206、淬火。 [0060] 206, quenching.

[0061] 为了使铝合金棒材获得非扩散型转变组织,将所述铝合金棒材放入淬火炉中进行淬火处理。 [0061] In order to obtain a non-aluminum diffusion shift rod tissue, quenching the aluminum alloy rod into the furnace for quenching.

[0062] 其中,淬火温度为540°C,淬火保温时间将根据步骤205中确定的铝合金棒材直径的大小进行调整。 [0062] wherein, the quenching temperature of 540 ° C, quenching the holding time will be adjusted according to the size of the diameter of the rod of aluminum alloy determined in step 205.

[0063] 本实施例相关实验中,研究淬火制度对铝合金棒材组织性能的影响。 [0063] In the present embodiment, experiments to study the effect on Microstructure Quenching Properties of Aluminum Rods. 将同一铸锭挤压成铝合金棒材后切取4个试样,分别将其加热到540°C、550°C、56(rC和570°C,并按规定的时间保温待试样冷却后做金相分析,通过分析金相图可知,当淬火温度达到570°C时也依然可以进行正常制造。 After the cut extruded aluminum alloy ingots of the same four sample bars were heated to 540 ° C, 550 ° C, 56 (rC and 570 ° C, a predetermined time in accordance incubated sample to be cooled metallographic analysis, found by analyzing the phase diagram, when the quenching temperature reaches 570 ° C it still can be manufactured properly.

[0064] 6A82铝合金棒材要求抗拉强度> 400MPa,实验采用淬火温度由低到高,从同一棒材上连续切取试样进行实验,淬火保温时间为40min,实验结果取铝合金棒材强度和延伸率对应淬火温度的点绘制曲线图,实验结果请参见图3。 [0064] 6A82 Alloy Bar claim tensile strength> 400MPa, experiment quenching temperature from low to high, continuous experimental samples cut from the same bar, quench holding time 40min, take the results strength aluminum bar graph plotted points corresponding to the elongation and the quenching temperature, see Figure 3 results.

[0065] 经过对图3实验数据的分析,可以发现随着淬火温度的升高,6A82铝合金棒材的力学性能快速提高,当淬火温度达到500°C时,随着温度升高,6A82铝合金棒材的力学性能缓慢提高,因此确定淬火制度中淬火温度为540°C。 [0065] After the analysis of the experimental data in Figure 3, it can be found with increasing quenching temperature, the mechanical properties of the aluminum alloy rod 6A82 rapid increase, when the quenching temperature reached 500 ° C, as the temperature rises, aluminum 6A82 mechanical properties of the alloy bars slowly increased, it is determined quenching systems quenching temperature is 540 ° C.

[0066] 207、拉伸矫直。 [0066] 207, tension leveling.

[0067] 为了减少铝合金棒材的弯曲度,将所述淬火处理后的铝合金棒材置于拉伸机中, 启动拉伸机进行拉伸矫直处理。 [0067] In order to reduce the curvature of the aluminum bars, the bars of aluminum alloy quenching treatment after stretching machine is placed, starts stretching machine stretch straightening process.

[0068] 208、取样。 [0068] 208, sampled.

[0069] 为了对所述拉伸矫直处理后的铝合金棒材进行高倍性能检测和低倍性能检测,从所述拉伸矫直处理后的铝合金棒材中切取用于高倍性能检测和低倍性能检测的试样。 [0069] To aluminum alloy rod after the tension leveling process proceeds high power and low power performance testing performance testing, the aluminum alloy from the stretching rod after straightening excised for high power and performance testing sample times lower performance testing.

[0070] 209、高低倍性能检测。 [0070] 209 times the level of performance testing.

[0071 ] 对所述试样进行高倍性能检测和低倍性能检测。 [0071] The performance testing for high power and low power performance testing of the sample. 高倍性能检测就是检测铝合金棒材是否存在过烧现象,低倍性能检测主要检测铝合金棒材是否存在粗晶环深度过大、缩尾等缺陷,如存在以上现象,则认为产品不合格。 High power performance testing is to detect whether the aluminum bars had burning phenomenon, mainly low power performance testing detects presence or absence of an aluminum alloy rods coarse-crystalline depth is too large, defects like tail withdrawal, as the presence of the above phenomenon is considered unacceptable product.

[0072] 若所述试样通过所述高倍性能检测和所述低倍性能检测,则进行后续对所述拉伸矫直处理后的铝合金棒材进行锯切成品处理的步骤,若不通过上述检测,则需重新生产铝合金棒材。 [0072] When the microscopic properties of the sample by detecting the low power and performance testing, the aluminum alloy subsequent step after the stretching rod straightening sawing process is finished, if by the detection, it will have to re production of aluminum bars.

[0073] 210、锯切成品。 [0073] 210, the finished cutting.

[0074] 为了得到长度符合需求的铝合金棒材,对所述拉伸矫直处理后的铝合金棒材进行锯切成品处理,把长度较长的铝合金棒材锯切成长度适宜的铝合金棒材。 [0074] In order to meet the requirements to obtain the length of the rod of aluminum alloy, the aluminum alloy after the stretching rod straightening sawing process finished, the longer length of the bar cutting alloy suitable growth aluminum alloy bars.

[0075] 211、精整矫直。 [0075] 211, finishing straightening.

[0076] 为了使铝合金棒材进一步符合规格,对所述锯切成品处理后的铝合金棒材中不能通过拉伸矫直处理消除弯曲的铝合金棒材进行精整矫直处理,完善成品。 [0076] In order to further meet the specifications of the aluminum alloy rod, the aluminum alloy rod after sawing process is not finished by the elimination of stretch straightening process bent aluminum rods for straightening finishing, improve finished. 精整矫直处理方法包括辊矫机辊矫、压力矫等。 Finishing process includes straightening roller straightening roll straightening machine, straightening pressure and the like.

[0077] 212、成品检测。 [0077] 212, product testing.

[0078] 为了在包装之前检查产品尺寸、表面质量等是否达到标准要求,对所述锯切成品处理和所述精整矫直处理后的铝合金棒材进行成品检测。 [0078] In order to check the dimensions prior to packaging, whether the surface quality standards, the aluminum alloy rod after sawing the finished product and finishing process for straightening finished product testing.

[0079] 若所述锯切成品处理和所述精整矫直处理后的铝合金棒材通过所述成品检测,则进行后续将所述锯切成品处理后的铝合金棒材放入时效炉中进行人工时效处理的步骤,若不通过上述检测,则需重新生产铝合金棒材。 [0079] The finished aluminum rod if the sawing process and the finishing treatment by straightening the product testing, the aluminum rod for the subsequent cutting into the finished product after treatment aging furnace for artificial aging treatment step, if the above detection, will have to re production of aluminum bars.

[0080] 213、人工时效。 [0080] 213, artificial aging.

[0081] 为了使铝合金材料沉淀硬化,将所述通过成品检测后的铝合金棒材放入时效炉中进行人工时效处理,时效制度为温度升至175°C后保温8小时。 [0081] In order to precipitation hardening aluminum alloy, an aluminum alloy rod into the finished product after aging furnace for detecting the artificial aging treatment system after incubation temperature was raised 175 ° C 8 hours.

[0082] 本实施例相关实验中,研究确认最佳时效制度。 [0082] Example embodiment of the present experiments, the study confirmed that the optimum prescription system. 在6A82铝合金棒材淬火后对试样进行人工时效处理,淬火温度为540°C,合金棒材直径为Φ 70mm,时效制度采用6000系铝合金常用和接近常用的4种时效制度,实验数据请参见表7。 The samples were quenched after 6A82 Alloy Bar artificial aging treatment, a quenching temperature of 540 ° C, alloy bar having a diameter of Φ 70mm, aging system uses 6000 series aluminum alloy used and four common close system aging, the experimental data See Table 7.

[0083] [0083]

Figure CN102319756AD00091

[0084][0085] 表7 [0084] [0085] Table 7

[0086] 通过表7中数据可知,前3种时效制度得到的抗拉强度都在400MPa以上,其中175°C /8小时的时效制度下制造的铝合金棒材的抗拉强度最高。 [0086] by the data in Table 7 shows that the first three of the aging system resulting in a tensile strength above 400MPa, wherein the maximum tensile strength of the aluminum alloy rod manufactured aging system at 175 ° C / 8 hr. 而其它时效制度均不能制造合格产品,所以确认本发明方法时效制度为温度升至175°C后保温8小时。 While other qualified prescription system can not manufacture the product, it was observed that the insulation system for the method of the present invention, the aging temperature was raised to 175 ° C 8 hours.

[0087] 214、性能检测。 [0087] 214, the detection performance.

[0088] 为了检测产品是否合格,对所述人工时效处理后的铝合金棒材进行力学性能检测。 [0088] In order to detect the product is qualified, the aluminum alloy rod after artificial aging for mechanical properties testing. 力学性能检测项目包括抗拉强度、屈服强度、延伸率。 Mechanical properties test items including tensile strength, yield strength and elongation. 对于6A82铝合金棒材产品,其抗拉强度> 400MPa即为合格,其它两项只做参考。 For 6A82 aluminum alloy bar products, its tensile strength> 400MPa is qualified, the other two only for reference.

[0089] 215、包装入库。 [0089] 215, packaging and storage.

[0090] 若所述人工时效处理后的铝合金棒材通过步骤214中所述力学性能检测,则将所述锯切成品处理后的铝合金棒材包装入库。 [0090] When the aluminum alloy rods after artificial aging step 214 in the mechanical properties testing, the aluminum alloy rods will after sawing the finished packaging and storage process.

[0091] 本实施例方法用于生产合金牌号为6A82的铝合金棒材,其制造方法挤压制度中, 挤压温度为520〜540°C,挤压筒温度为460°C,挤压速度为1. 0〜4. Osec/mm,淬火制度中, 淬火温度为540°C,时效制度中为温度升至175°C并保温8小时。 [0091] The present embodiment is a method for producing an aluminum alloy Alloy 6A82 rod, which pressing system manufacturing method, the pressing temperature is 520~540 ° C, the extrusion barrel temperature of 460 ° C, extrusion speed is 1. 0~4. Osec / mm, the quenching system, the quenching temperature of 540 ° C, the temperature was raised for aging system 175 ° C and held for 8 hours. 通过以上的制造方法生产的6A82铝合金棒材,抗拉强度大于等于400MPa,粗晶环深度小于等于5mm。 Produced by the above method of producing aluminum rod 6A82, tensile strength greater than 400 MPa or equal to, or less coarse-crystalline depth 5mm.

[0092] 以上对本发明所提供的一种铝合金棒材的制造方法进行了详细介绍,对于本领域的一般技术人员,依据本发明实施例的思想,在具体实施方式及应用范围上均会有改变之处,综上所述,本说明书内容不应理解为对本发明的限制。 [0092] The above detailed description of the method for manufacturing an aluminum alloy rods of the present invention is provided by those of ordinary skill in the art, according to idea of ​​an embodiment of the present invention, there are in the specific embodiments and applications change place, Therefore, the specification shall not be construed as limiting the present invention.

Claims (6)

1. 一种铝合金棒材的制造方法,其特征在于,包括:将6000系铝合金的铸锭放入挤压机挤压筒中进行挤压,得到铝合金棒材,挤压温度为520〜540°C,挤压筒温度为460°C,挤压速度为1. 0〜4. Osec/mm ;将所述铝合金棒材放入淬火炉中进行淬火处理,淬火温度为540°C。 A method for producing an aluminum alloy bars, characterized by comprising: the 6000 series aluminum alloy ingot was placed in an extruder barrel extruder was pressed to obtain an aluminum alloy bars, extrusion temperature of 520~ 540 ° C, the extrusion barrel temperature of 460 ° C, extruding rate was 1. 0~4 Osec / mm;. quenching the aluminum alloy rod into the furnace for quenching, quenching temperature of 540 ° C.
2.根据权利要求1所述的方法,其特征在于,所述将铸锭放入挤压机挤压筒中进行挤压之前进一步包括步骤:按6000 系铝合金重量百分比Si 0. 95 〜1. 15%,Fe < 0. 30%,Cu 0. 40 〜0. 50%, Mn 0. 40 〜0. 55%,Mg 0. 85 〜1. 10%, Cr 0. 10 〜0. 20%, Zn 彡0. 25%, Zr 彡0. 05%, Ti 0. 01〜0. 10%和余量的Al准备合金原料;将所述合金原料放入石墨坩埚中熔炼,熔炼温度为740〜760°C,使得所述合金原料完全熔化,并得到成份分布均勻的熔体;对所述熔体进行熔体净化处理;将所述熔体净化处理后的熔体铸造成铸锭,铸造温度为730〜740°C,铸造速度为100 〜110mm/min,铸造水压为0. 06 〜0. 12MPa。 2. The method according to claim 1, wherein said ingot further comprising, prior to extrusion into the extruder barrel extrusion step: Press 6000 series aluminum alloy by weight Si 0. 95 ~1. 15%, Fe <0. 30%, Cu 0. 40 ~0. 50%, Mn 0. 40 ~0. 55%, Mg 0. 85 ~1. 10%, Cr 0. 10 ~0. 20%, Zn San 0. 25%, Zr San 0. 05%, Ti 0. 01~0 10%, and the balance Al alloy materials prepared;. the raw material alloy is placed in a graphite crucible and melting, the melting temperature of 740~760 ° C, such that the alloy is completely melted starting material, and to obtain a homogeneous melt composition distribution; melt to the melt purification; melt purification treatment after casting the melt into an ingot, casting temperature 730~740 ° C, the casting speed was 100 ~110mm / min, the casting pressure of 0. 06 ~0. 12MPa.
3.根据权利要求1或2所述的方法,其特征在于,所述将所述铝合金棒材放入淬火炉中进行淬火处理之后进一步包括:将所述淬火处理后的铝合金棒材置于拉伸机中进行拉伸矫直处理;对所述拉伸矫直处理后的铝合金棒材进行锯切成品处理;将所述锯切成品处理后的铝合金棒材放入时效炉中进行人工时效处理,时效制度为温度升至175°C后保温8小时。 3. The method of claim 1 or claim 2, wherein said rod into the aluminum alloy is quenched after the hardening oven further comprising: an aluminum alloy of the bar facing the quenching stretching a tensile straightening machine; aluminum alloy rod straightening process after the stretching process finished sawing; alloy bar sawing the finished product after processing into aging furnace artificial aging, after heat aging system temperature was raised to 175 ° C 8 hours.
4.根据权利要求3所述的方法,其特征在于,所述将所述淬火处理后的铝合金棒材置于拉伸机中进行拉伸矫直处理之后进一步包括步骤:从所述拉伸矫直处理后的铝合金棒材中切取用于高倍性能检测和低倍性能检测的试样;对所述试样进行高倍性能检测和低倍性能检测;若所述试样通过所述高倍性能检测和所述低倍性能检测,则触发执行所述对所述拉伸矫直处理后的铝合金棒材进行锯切成品处理的步骤。 4. The method according to claim 3, wherein said aluminum alloy rod is placed after the quenching treatment after stretching straightening stretching machine further comprising the step of: drawing from the aluminum bars straightening process after the specimen was cut out for high power and low power performance testing performance testing; and the sample is high power and low power performance testing performance testing; if the sample by the microscopic properties and detecting the low power performance testing, the step of performing the process of sawing the finished stretched aluminum bars after straightening is triggered.
5.根据权利要求3所述的方法,其特征在于,所述对所述拉伸矫直处理后的铝合金棒材进行锯切成品处理之后进一步包括步骤:对所述锯切成品处理后的铝合金棒材中不能通过拉伸矫直处理消除弯曲的铝合金棒材进行精整矫直处理;对所述锯切成品处理和所述精整矫直处理后的铝合金棒材进行成品检测;若所述锯切成品处理和所述精整矫直处理后的铝合金棒材通过所述成品检测,则触发执行所述将所述锯切成品处理后的铝合金棒材放入时效炉中进行人工时效处理的步骤。 5. The method according to claim 3, characterized in that, after sawing the finished product after treatment of the aluminum rod tension leveling process further comprising: processing the sawing of finished after the aluminum bars can not be bent by stretch straightening process to eliminate the aluminum rod for straightening finishing process; the aluminum alloy after the sawing process and the finished product finishing straightening bars finished product testing; finished aluminum rod if the sawing process and the straightening process after finishing the product testing by performing said aluminum rods after the cutting process is finished trigger aging furnace for material placed in the artificial aging treatment step.
6.根据权利要求3所述的方法,其特征在于,所述将所述锯切成品处理后的铝合金棒材放入时效炉中进行人工时效处理之后进一步包括步骤:对所述人工时效处理后的铝合金棒材进行力学性能检测;若所述人工时效处理后的铝合金棒材通过所述力学性能检测,则将所述锯切成品处理后的铝合金棒材包装入库。 After 6. The method according to claim 3, wherein said aluminum alloy rod after the sawing process into finished artificial aging oven aging process further comprising the step of: said artificial aging aluminum bars the mechanical properties of the processed detected; if the aluminum alloy rod after the artificial aging treatment is detected by the mechanical properties of the aluminum alloy rod will be treated after finished cutting the packaging and storage.
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