CN105436230A - Method for preparing copper-aluminum double-layer medium-thickness composite board - Google Patents

Abstract

Translated fromChinese

本发明公开了一种铜铝双层中厚复合板的制备方法，其特征在于其步骤是：1)将铝管和铜管复合的表面进行清理，再将铜管套装与铝管外侧，形成铜铝双层中厚复合管坯；2)通过碾压机进行冷碾压；3)扩散退火处理；4)将铜铝双层中厚复合管切开并展平成铜铝双层中厚复合板；5)将铜铝双层中厚复合板通过六辊轧机进行温轧至所需厚度；6)矫直，表面酸洗，切边，制成成品。本发明利用碾压机将铜铝双层中厚复合管坯进行冷碾压并进行扩散退火处理，提高了复合板的结合强度；将铜铝双层中厚复合管进行温轧，可降低轧制复合工艺对轧机性能的要求。

The invention discloses a method for preparing a copper-aluminum double-layer medium-thick composite plate, which is characterized in that the steps are: 1) cleaning the composite surface of the aluminum tube and the copper tube, and then fitting the copper tube on the outside of the aluminum tube to form Copper-aluminum double-layer medium-thick composite tube billet; 2) cold rolling by rolling machine; 3) diffusion annealing treatment; 4) cutting and flattening copper-aluminum double-layer medium-thick composite tube into copper-aluminum double-layer medium-thick composite 5) Warm rolling the copper-aluminum double-layer medium-thick composite plate to the required thickness through a six-roll rolling mill; 6) Straightening, pickling the surface, and trimming the edges to make a finished product. The present invention uses a rolling machine to cold-roll the copper-aluminum double-layer medium-thick composite pipe blank and perform diffusion annealing treatment, which improves the bonding strength of the composite plate; warm-rolls the copper-aluminum double-layer medium-thick composite pipe to reduce the rolling loss. Composite process requirements for rolling mill performance.

Description

Translated fromChinese

一种铜铝双层中厚复合板的制备方法Preparation method of a copper-aluminum double-layer medium-thick composite board

技术领域technical field

本发明属于铜铝双层复合板的制备技术领域，具体涉及一种生产铜铝双层中厚复合板的方法。The invention belongs to the technical field of preparation of copper-aluminum double-layer composite boards, and in particular relates to a method for producing copper-aluminum double-layer medium-thick composite boards.

背景技术Background technique

在实际生活当中，铜和铝都具有良好的导热、导电性，如计算机、冰箱、冶金、汽车、航空航天、电器元件、军工等领域的散热和导电器件。但是，随着国内外工业的发展，对散热材料的要求更加严格，不但要求散热性好，同时还需要其具有质轻、导电性、易加工性、焊接性及耐腐蚀性良好等特征，因此单一的材料铜或铝已经不能完全满足现代工业对材料综合性能的要求，另外，我国的铜资源也较为匮乏。以铜铝复合板代替单层的铜板或铝板的应用前景十分广泛。In real life, both copper and aluminum have good thermal conductivity and electrical conductivity, such as heat dissipation and conductive devices in the fields of computers, refrigerators, metallurgy, automobiles, aerospace, electrical components, and military industries. However, with the development of industries at home and abroad, the requirements for heat dissipation materials are more stringent, not only requiring good heat dissipation, but also requiring them to have the characteristics of light weight, electrical conductivity, easy processing, weldability and good corrosion resistance. Therefore, A single material, copper or aluminum, can no longer fully meet the requirements of modern industry on the comprehensive performance of materials. In addition, my country's copper resources are relatively scarce. The application prospect of replacing single-layer copper or aluminum plates with copper-aluminum composite plates is very broad.

由于铜铝冷轧复合板工艺对轧机的性能要求较高，因此，到目前为止，铜铝双层中厚复合板主要通过爆炸复合法来生产，爆炸复合的铜铝双层复合板虽然具有良好的结合性能，但其机械化程度低、劳动环境差、具有一定的危险性。Because the copper-aluminum cold-rolled clad plate process has high requirements on the performance of the rolling mill, so far, the copper-aluminum double-layer medium-thick clad plate is mainly produced by the explosive clad method. However, its low degree of mechanization, poor working environment, and certain dangers.

发明内容Contents of the invention

本发明目的是提供一种制备铜铝双层中厚复合板的生产工艺，采用本生产工艺，具有界面结合强度高、生产成本低、成品率高的优点。The purpose of the present invention is to provide a production process for preparing copper-aluminum double-layer medium-thick composite board. The production process has the advantages of high interface bonding strength, low production cost and high yield.

本发明是通过下述技术方案实现。The present invention is realized through the following technical solutions.

一种铜铝双层中厚复合板的制备方法，其特征在于其步骤是：A method for preparing a copper-aluminum double-layer medium-thick composite board is characterized in that the steps are:

1)选取铸态铝管为基层，铸态铜管为复层，将铝管和铜管进行浸洗除油，再将浸洗后的铝管和铜管烘干，清理铝管和铜管进行复合的表面，直止见到新的基体，再将铜管套装与铝管外侧，形成铜铝双层中厚复合管坯；1) Select the cast aluminum tube as the base layer and the cast copper tube as the multilayer, soak the aluminum tube and copper tube to remove oil, then dry the soaked aluminum tube and copper tube, and clean the aluminum tube and copper tube On the surface of the composite, until the new matrix is seen, the copper tube is set on the outside of the aluminum tube to form a copper-aluminum double-layer medium-thick composite tube blank;

2)将铜铝双层中厚复合管坯通过碾压机进行冷碾压；2) cold-rolling the copper-aluminum double-layer medium-thick composite tube blank through a rolling machine;

3)将碾压后的铜铝双层中厚复合管进行扩散退火处理；3) Diffusion annealing treatment is performed on the rolled copper-aluminum double-layer medium-thick composite pipe;

4)将扩散退火后的热态铜铝双层中厚复合管切开并展平成铜铝双层中厚复合板；4) cutting and flattening the hot-state copper-aluminum double-layer medium-thick composite pipe after diffusion annealing into a copper-aluminum double-layer medium-thick composite plate;

5)将展平的铜铝双层中厚复合板通过四辊轧机进行温轧至所需厚度；5) Warm rolling the flattened copper-aluminum double-layer medium-thick composite plate to the required thickness by a four-roll mill;

6)将四辊轧机温轧后的铜铝双层复合中厚板进行矫直，表面酸洗，切边，制成成品。6) Straighten the copper-aluminum double-layer composite medium-thick plate after warm rolling in a four-high rolling mill, pickle the surface, and trim the edge to make a finished product.

本发明优点及积极效果：Advantages and positive effects of the present invention:

本发明利用碾压机将铜铝双层中厚复合管坯进行冷碾压并进行扩散退火处理，可以使铜管在较小的压下率下紧套于铝环件外侧，减少扩散退火过程中复合界面的氧化，有利于提高后续轧制复合板的结合强度；将扩散退火后的热态铜铝双层中厚复合管切开、展平并进行温轧，可降低轧制复合工艺对轧机性能的要求；采用该工艺方法来制备铜铝双层中厚复合板，工艺简单、灵活，生产成本低，有利于降低复合板的残余应力，提高复合质量。The present invention uses a rolling machine to cold-roll the copper-aluminum double-layer medium-thick composite tube blank and perform diffusion annealing treatment, so that the copper tube can be tightly fitted on the outer side of the aluminum ring at a small reduction rate, reducing the diffusion annealing process Oxidation of the medium-to-medium composite interface is beneficial to improve the bonding strength of the subsequent rolling clad plate; cutting, flattening and warm rolling the hot copper-aluminum double-layer medium-thick composite tube after diffusion annealing can reduce the impact of the rolling clad process on Rolling mill performance requirements; using this process method to prepare copper-aluminum double-layer medium-thick composite plate, the process is simple and flexible, and the production cost is low, which is beneficial to reduce the residual stress of the composite plate and improve the composite quality.

附图说明：Description of drawings:

图1为铜铝双层中厚复合管坯示意图；Fig. 1 is a schematic diagram of copper-aluminum double-layer medium-thick composite tube blank;

图2为铜铝双层中厚复合管冷碾压示意图；Fig. 2 is a schematic diagram of cold rolling of copper-aluminum double-layer medium-thickness composite pipe;

图3为切开的铜铝双层中厚复合示意图；Fig. 3 is the schematic diagram of the cut copper-aluminum double-layer medium-thick composite;

图4为铜铝双层中厚复合板四辊温轧示意图；Figure 4 is a schematic diagram of four-roll warm rolling of a copper-aluminum double-layer medium-thick composite plate;

图中：1―铜管；2―铝管；3―芯辊；4―外辊；5―导向辊；6―控制辊；7―小直径工作辊；8―大直径工作辊。In the figure: 1—copper tube; 2—aluminum tube; 3—core roll; 4—outer roll; 5—guiding roll; 6—control roll; 7—small diameter work roll; 8—large diameter work roll.

具体实施方式：detailed description:

下面结合附图及实施例，对本发明进一步详细描述。应当理解，此处所描述的具体实施例仅用于解释本发明，并不用来限制本发明。The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

实施例1：制备L3铝板—T2铜板双层中厚复合板，具有以下步骤：Embodiment 1: The preparation of L3 aluminum plate-T2 copper plate double-layer medium-thick composite plate has the following steps:

制坯：选取铸态铜管1和铸态铝管2按照1：5比例组坯，铜管1尺寸为厚10mm*内径800mm*高1000mm；铝板2尺寸为厚50mm*外径800mm*高1000mm；将铜管1用10%的H₂SO₄溶液浸洗、烘干，铝管2用5%的NaOH溶液浸洗、烘干；用钢丝刷清理铜管1的内表面和铝管2的外表面，直至见到金属基底；将铜管1套装于铝管2外侧，得到铜铝双层中厚复合管坯，如图1。 Blank making: select the as-cast copper tube 1 and the cast aluminum tube 2 according to the ratio of 1:5, and the size of the copper tube 1 is 10mm thick*inner diameter 800mm*height 1000mm; the size of the aluminum plate 2 is 50mm thick*outer diameter 800mm*height 1000mm ; Copper tube 1 is soaked and dried with 10% H₂ SO₄ solution, and aluminum tube 2 is soaked and dried with 5% NaOH solution; the inner surface of copper tube 1 and the surface of aluminum tube 2 are cleaned with a wire brush. The outer surface until the metal base is seen; the copper tube 1 is placed on the outer side of the aluminum tube 2 to obtain a copper-aluminum double-layer medium-thick composite tube blank, as shown in Figure 1.

冷碾压：将制好的铜铝双层中厚复合管坯送往碾压机进行冷碾压，如图2，所述碾压机是由芯辊3，外辊4，导向辊5和控制辊6构成，芯辊3的辊径尺寸为300mm，外辊4的辊径尺寸为280mm，导向辊5和控制辊6的辊径尺寸均为150mm，轧制时芯辊3为从动辊，外辊4为主动辊，外辊4的线速度为5m/min，压下速度为3mm/min，总轧制压下率为20%。 Cold rolling: Send the prepared copper-aluminum double-layer medium-thick composite tube blank to the rolling machine for cold rolling, as shown in Figure 2. The rolling machine is composed of a core roll 3, an outer roll 4, a guide roll 5 and The control roll 6 is composed of the core roll 3 with a roll diameter of 300 mm, the outer roll 4 with a roll diameter of 280 mm, the guide roll 5 and the control roll 6 with a roll diameter of 150 mm, and the core roll 3 is a driven roll during rolling , the outer roll 4 is a driving roll, the linear speed of the outer roll 4 is 5m/min, the reduction speed is 3mm/min, and the total rolling reduction rate is 20%.

扩散退火：将碾压机冷碾压后的铜铝双层中厚复合管进行扩散退火，退火温度是350℃，退火时间是35min。 Diffusion annealing: Diffusion annealing is carried out on the copper-aluminum double-layer medium-thickness composite pipe cold rolled by the rolling machine. The annealing temperature is 350°C and the annealing time is 35 minutes.

切开、展平：将扩散退火后的热态铜铝双层中厚复合管沿高度方向切开，如图3，然后展平成铜铝双层中厚复合板7。 Cutting and flattening: Cut the hot copper-aluminum double-layer medium-thick composite pipe after diffusion annealing along the height direction, as shown in Figure 3, and then flatten it into a copper-aluminum double-layer medium-thick composite plate 7.

四辊轧制：将展平的铜铝双层中厚复合板7送往四辊轧机进行温轧，轧制温度为450℃，如图4，所述四辊轧机的工作辊辊径尺寸不同，小直径工作辊8的辊径尺寸为150mm，大直径工作辊9的辊径尺寸为200mm，轧制时工作辊的线速度大小不等，小直径工作辊8的线速度为7.2m/min，大直径工作辊9的线速度为6.5m/min，小直径工作辊8位于铜板侧，大直径工作辊9位于铝板侧，轧制压下率为10%。 Four-roll rolling: the flattened copper-aluminum double-layer medium-thick composite plate 7 is sent to a four-roll mill for warm rolling, and the rolling temperature is 450°C, as shown in Figure 4. The diameters of the work rolls of the four-roll mill are different , the roll diameter of the small-diameter work roll 8 is 150mm, the roll diameter of the large-diameter work roll 9 is 200mm, the linear speed of the work rolls during rolling is different, and the linear speed of the small-diameter work roll 8 is 7.2m/min , the linear speed of the large-diameter work roll 9 is 6.5m/min, the small-diameter work roll 8 is located on the copper plate side, the large-diameter work roll 9 is located on the aluminum plate side, and the rolling reduction rate is 10%.

矫直，表面酸洗，切边，制成成品。 Straightening, surface pickling, trimming, and finished products.

Claims (1)

Translated fromChinese

1.一种铜铝双层中厚复合板的制备方法，其特征在于其步骤是：1. a method for preparing a copper-aluminum double-layer medium-thick composite plate, characterized in that its steps are:1)选取铸态铝管为基层，铸态铜管为复层，将铝管和铜管进行浸洗除油，再将浸洗后的铝管和铜管烘干，清理铝管和铜管进行复合的表面，直止见到新的基体，再将铜管套装与铝管外侧，形成铜铝双层中厚复合管坯；1) Select the cast aluminum tube as the base layer and the cast copper tube as the multilayer, soak the aluminum tube and copper tube to remove oil, then dry the soaked aluminum tube and copper tube, and clean the aluminum tube and copper tube On the surface of the composite, until the new matrix is seen, the copper tube is set on the outside of the aluminum tube to form a copper-aluminum double-layer medium-thick composite tube blank;2)将铜铝双层中厚复合管坯通过碾压机进行冷碾压；2) cold-rolling the copper-aluminum double-layer medium-thick composite tube blank through a rolling machine;3)将碾压后的铜铝双层中厚复合管进行扩散退火处理；3) Diffusion annealing treatment is performed on the rolled copper-aluminum double-layer medium-thick composite pipe;4)将扩散退火后的热态铜铝双层中厚复合管切开并展平成铜铝双层中厚复合板；4) cutting and flattening the hot-state copper-aluminum double-layer medium-thick composite pipe after diffusion annealing into a copper-aluminum double-layer medium-thick composite plate;5)将展平的铜铝双层中厚复合板通过四辊轧机进行温轧至所需厚度；5) Warm rolling the flattened copper-aluminum double-layer medium-thick composite plate to the required thickness by a four-roll mill;6)将四辊轧机温轧后的铜铝双层复合中厚板进行矫直，表面酸洗，切边，制成成品。6) Straighten the copper-aluminum double-layer composite medium-thick plate after warm rolling in a four-high rolling mill, pickle the surface, and trim the edge to make a finished product.