CN110038897A - A kind of magnesium alloy plate warm-rolling device - Google Patents
A kind of magnesium alloy plate warm-rolling device Download PDFInfo
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- CN110038897A CN110038897A CN201910384886.7A CN201910384886A CN110038897A CN 110038897 A CN110038897 A CN 110038897A CN 201910384886 A CN201910384886 A CN 201910384886A CN 110038897 A CN110038897 A CN 110038897A
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- 229910000861 Mg alloy Inorganic materials 0.000 title claims abstract description 38
- 238000005096 rolling process Methods 0.000 title claims abstract description 34
- 239000000314 lubricant Substances 0.000 claims abstract description 20
- 238000010438 heat treatment Methods 0.000 claims abstract description 19
- 230000001050 lubricating effect Effects 0.000 claims abstract description 5
- 238000009434 installation Methods 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims description 2
- 239000002828 fuel tank Substances 0.000 claims 4
- 230000009286 beneficial effect Effects 0.000 abstract description 5
- 229910052751 metal Inorganic materials 0.000 abstract description 2
- 239000002184 metal Substances 0.000 abstract description 2
- 239000003921 oil Substances 0.000 abstract 6
- 239000010687 lubricating oil Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
- B21B27/06—Lubricating, cooling or heating rolls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
- B21B3/02—Rolling special iron alloys, e.g. stainless steel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0239—Lubricating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0239—Lubricating
- B21B45/0245—Lubricating devices
- B21B45/0248—Lubricating devices using liquid lubricants, e.g. for sections, for tubes
- B21B45/0251—Lubricating devices using liquid lubricants, e.g. for sections, for tubes for strips, sheets, or plates
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Abstract
本发明属于金属板材温轧设备技术领域，具体涉及一种镁合金板材温轧装置，包括机架，所述机架安装有四辊轧机的上工作辊、下工作辊、上支承辊和下支承辊，所述上工作辊和下工作辊安装在上支承辊和下支承辊之间；其特征在于，所述上工作辊和下工作辊均为空心辊，所述上工作辊和下工作辊两端均通过进油管和出油管与加热油箱连通，所述加热油箱内设置连通进油管的高温循环泵，进料一侧的所述机架固定有润滑喷嘴，所述喷嘴通过软管连通润滑剂泵，所以润滑剂泵设置在润滑剂箱内。上工作辊和下工作辊通过热油加热，受热均匀，有利于镁合金的轧制。
The invention belongs to the technical field of warm rolling equipment for metal sheets, and in particular relates to a warm rolling device for magnesium alloy sheets, comprising a frame, wherein the frame is provided with upper work rolls, lower work rolls, upper backup rolls and lower supports of a four-high rolling mill The upper work roll and the lower work roll are installed between the upper back-up roll and the lower back-up roll; it is characterized in that the upper work roll and the lower work roll are hollow rolls, and the upper work roll and the lower work roll are hollow rolls. Both ends are communicated with the heating oil tank through the oil inlet pipe and the oil outlet pipe. The heating oil tank is provided with a high-temperature circulating pump connected to the oil inlet pipe. The frame on the feeding side is fixed with a lubricating nozzle, and the nozzle is connected to the lubricating oil through a hose. The lubricant pump is installed in the lubricant tank. The upper work roll and the lower work roll are heated by hot oil, and the heating is uniform, which is beneficial to the rolling of magnesium alloys.
Description
技术领域technical field
本发明属于金属板材温轧设备技术领域，具体涉及一种镁合金板材温轧装置。The invention belongs to the technical field of warm rolling equipment for metal sheets, and in particular relates to a warm rolling device for magnesium alloy sheets.
背景技术Background technique
镁合金是一种现代轻质结构金属材料，具有密度小、比强度和必刚度高的特点，以及优良的电磁屏蔽性、阻尼减震性和机械加工性，在航天、汽车和电子产品等领域有广阔的应用前景。目前，大多数镁合金制品采用铸造尤其压铸工艺成形，变形镁合金板材的轧制技术尚不成熟，限制了镁合金的应用。镁合金板材温轧技术的难点之一在于，如果不能保持轧辊表面的温度，镁合金板将迅速冷却而使得塑性变差，无法获得理想的组织和力学性能。因此，轧制前和轧制过程均要加热轧辊。现有技术中，加热轧辊一般采用电加热或电磁加热，存在的问题是，对轧辊的加热不够均匀，影响轧制效果。Magnesium alloy is a modern lightweight structural metal material with the characteristics of low density, high specific strength and rigidity, as well as excellent electromagnetic shielding, damping shock absorption and machinability. It is used in aerospace, automotive and electronic products and other fields. There are broad application prospects. At present, most magnesium alloy products are formed by casting, especially die-casting, and the rolling technology of wrought magnesium alloy sheets is still immature, which limits the application of magnesium alloys. One of the difficulties in the warm rolling technology of magnesium alloy sheet is that if the temperature of the roll surface cannot be maintained, the magnesium alloy sheet will be rapidly cooled and the plasticity will be deteriorated, and the ideal microstructure and mechanical properties cannot be obtained. Therefore, the rolls are heated before and during rolling. In the prior art, electric heating or electromagnetic heating is generally used to heat the rolls, and the existing problem is that the heating of the rolls is not uniform enough, which affects the rolling effect.
发明内容SUMMARY OF THE INVENTION
为了解决上述技术问题，本发明提供一种镁合金板材温轧装置。In order to solve the above technical problems, the present invention provides a warm rolling device for magnesium alloy sheet.
为了达到以上目的，本发明采取以下技术方案：In order to achieve the above purpose, the present invention adopts the following technical solutions:
一种镁合金板材温轧装置，包括机架，所述机架安装有四辊轧机的上工作辊、下工作辊、上支承辊和下支承辊，所述上工作辊和下工作辊安装在上支承辊和下支承辊之间；所述上工作辊和下工作辊均为空心辊，所述上工作辊和下工作辊两端均通过进油管和出油管与加热油箱连通，所述加热油箱内设置连通进油管的高温循环泵，进料一侧的所述机架固定有润滑喷嘴，所述喷嘴通过软管连通润滑剂泵，所以润滑剂泵设置在润滑剂箱内。A magnesium alloy sheet warm rolling device, including a frame, the frame is equipped with an upper work roll, a lower work roll, an upper backup roll and a lower backup roll of a four-high rolling mill, and the upper and lower work rolls are installed in the between the upper backup roll and the lower backup roll; the upper work roll and the lower work roll are hollow rolls, and both ends of the upper work roll and the lower work roll are communicated with the heating tank through the oil inlet pipe and the oil outlet pipe. A high-temperature circulating pump connected to the oil inlet pipe is arranged in the oil tank, and a lubricating nozzle is fixed on the frame on the feeding side, and the nozzle is connected to the lubricant pump through a hose, so the lubricant pump is arranged in the lubricant tank.
进一步地，所述上工作辊和下工作辊两端均设置有筒形安装轴，所述筒形安装轴外侧通过安装轴承固定在机架上，所述筒形安装轴内侧通过密封轴承安装油管接口。Further, both ends of the upper work roll and the lower work roll are provided with cylindrical installation shafts, the outer side of the cylindrical installation shaft is fixed on the frame through the installation bearing, and the inner side of the cylindrical installation shaft is installed with the oil pipe through the sealed bearing. interface.
进一步地，所述上工作辊和下工作辊的表面温度为400～600℃，所述加热油箱内设有热油，所述热油的油温为405～605℃。Further, the surface temperature of the upper work roll and the lower work roll is 400-600°C, the heating oil tank is provided with hot oil, and the oil temperature of the hot oil is 405-605°C.
进一步地，所述上工作辊和下工作辊的厚度为10～15mm。Further, the thickness of the upper work roll and the lower work roll is 10-15 mm.
进一步地，所述机架上固定有可探测上工作辊和下工作辊的红外线温度传感器。Further, an infrared temperature sensor capable of detecting the upper work roll and the lower work roll is fixed on the frame.
进一步地，所述镁合金板材温轧装置还包括控制器，所述控制器接收红外线温度传感器的信号，并控制加热油箱的温度。Further, the magnesium alloy sheet warm rolling device further includes a controller, the controller receives the signal of the infrared temperature sensor, and controls the temperature of the heating oil tank.
进一步地，所述机架上固定有可探测到进料的给料传感器，所述控制器接收给料传感器的信号，并控制润滑剂泵工作。Further, a feed sensor capable of detecting feeding is fixed on the frame, and the controller receives the signal from the feed sensor and controls the lubricant pump to work.
进一步地，所述进油管和出油管外侧设置有隔热材料。Further, heat insulating materials are provided on the outside of the oil inlet pipe and the oil outlet pipe.
有益效果：上工作辊和下工作辊通过热油加热，受热均匀，有利于镁合金的轧制；通过机架上固定的喷嘴实现润滑，镁合金轧制过程中喷润滑剂使得轧制的镁合金表面性能更好，而且可以有效防止轧制过程中镁合金板粘到辊上，起到隔离的效果。Beneficial effects: the upper work roll and the lower work roll are heated by hot oil, and the heating is uniform, which is beneficial to the rolling of magnesium alloys; lubrication is achieved through the fixed nozzles on the frame, and the lubricant is sprayed during the rolling process of magnesium alloys to make the rolled magnesium alloys. The surface performance of the alloy is better, and it can effectively prevent the magnesium alloy sheet from sticking to the roll during the rolling process, which has the effect of isolation.
附图说明Description of drawings
图1为镁合金板材温轧装置的主要结构示意图。Figure 1 is a schematic diagram of the main structure of a warm rolling device for magnesium alloy sheets.
图2为上工作辊和下工作辊的示意图。Figure 2 is a schematic view of the upper work roll and the lower work roll.
图中，机架1，镁合金板材2，喷嘴3，润滑剂箱4，下支承辊5，上支承辊6，上工作辊7，安装轴71，安装轴承72，密封轴承73，油管接口74，下工作辊8，加热油箱9，进油管10，出油管11。In the figure, frame 1, magnesium alloy sheet 2, nozzle 3, lubricant tank 4, lower backup roll 5, upper backup roll 6, upper work roll 7, installation shaft 71, installation bearing 72, sealing bearing 73, oil pipe interface 74 , Lower work roll 8, heating oil tank 9, oil inlet pipe 10, oil outlet pipe 11.
具体实施方式Detailed ways
下面结合附图和具体实施例对本发明作进一步详细说明。The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
图1至图2出示了一种镁合金板材2温轧装置，包括机架1，所述机架1安装有四辊轧机的上工作辊7、下工作辊8、上支承辊6和下支承辊5，所述上工作辊7和下工作辊8安装在上支承辊6和下支承辊5之间；所述上工作辊7和下工作辊8均为空心辊，所述上工作辊7和下工作辊8两端均通过进油管10和出油管11与加热油箱9连通，所述加热油箱9内设置连通进油管10的高温循环泵，如此实现加热油箱9和空心辊的热油循环；进料一侧的所述机架1固定有润滑喷嘴3，所述镁合金板材2的上方和下方均设有喷嘴3，所述喷嘴3为雾化喷嘴3，所述喷嘴3通过软管连通润滑剂泵，所以润滑剂泵设置在润滑剂箱4内，所述润滑喷嘴3的作用为给即将要轧制的镁合金板材2进行喷润滑剂。Figures 1 to 2 show a warm rolling device for magnesium alloy sheet 2, including a stand 1, the stand 1 is equipped with an upper work roll 7, a lower work roll 8, an upper backup roll 6 and a lower support of a four-high rolling mill Roll 5, the upper work roll 7 and the lower work roll 8 are installed between the upper backup roll 6 and the lower backup roll 5; the upper work roll 7 and the lower work roll 8 are hollow rolls, and the upper work roll 7 Both ends of the lower work roll 8 and the lower work roll 8 are communicated with the heating oil tank 9 through the oil inlet pipe 10 and the oil outlet pipe 11. The heating oil tank 9 is provided with a high temperature circulating pump connected to the oil inlet pipe 10, so as to realize the heating oil tank 9 and the hollow roller. The hot oil circulation ; The described frame 1 of the feeding side is fixed with a lubricating nozzle 3, the top and bottom of the magnesium alloy plate 2 are provided with a nozzle 3, the nozzle 3 is an atomizing nozzle 3, and the nozzle 3 passes through a hose The lubricant pump is connected, so the lubricant pump is arranged in the lubricant tank 4, and the function of the lubricating nozzle 3 is to spray lubricant on the magnesium alloy sheet 2 to be rolled.
如图2所示，所述上工作辊7和下工作辊8两端均设置有筒形安装轴71，所述安装轴71可与空心辊焊接或者与空心辊浇筑为一体结构，所述筒形安装轴71外侧通过安装轴承72固定在机架1上，所述筒形安装轴71内侧通过密封轴承73安装油管接口74，所述上工作辊7和下工作辊8的油管接口74连接进油管10和出油管11，本实施例采取密封连接，本实施例中为焊接连接。As shown in FIG. 2 , both ends of the upper work roll 7 and the lower work roll 8 are provided with cylindrical installation shafts 71 , and the installation shafts 71 can be welded with the hollow rolls or cast into an integral structure with the hollow rolls. The outer side of the cylindrical installation shaft 71 is fixed on the frame 1 through the installation bearing 72, the inner side of the cylindrical installation shaft 71 is installed with the oil pipe interface 74 through the sealed bearing 73, and the oil pipe interface 74 of the upper work roll 7 and the lower work roll 8 is connected to the The oil pipe 10 and the oil outlet pipe 11 are in a sealed connection in this embodiment, and are welded in this embodiment.
所述上工作辊7和下工作辊8的厚度为10～15mm，材质为导热性较好的钢材，本实施例采用H13钢。The thickness of the upper work roll 7 and the lower work roll 8 is 10-15 mm, and the material is steel with good thermal conductivity, and H13 steel is used in this embodiment.
所述机架1上固定有可探测上工作辊7和下工作辊8的红外线温度传感器。所述镁合金板材2温轧装置还包括控制器，所述控制器接收红外线温度传感器的数据，并控制加热油箱9的温度，如此实现维持上工作辊7和下工作辊8的温度为所需温度。所述机架1上固定有可探测到进料的给料传感器，所述给料传感器为接近开关或光电开关均可，所述控制器接收给料传感器的信号，并控制润滑剂泵工作，实现在线润滑，具体流程为，给料传感器探测到镁合金板材2，将信号传给控制器，所述控制器控制润滑剂泵工作，喷嘴3开始喷润滑剂。所述红外线温度传感器和给料传感器如何固定在机架1上，很容易实现在此不作赘述。An infrared temperature sensor capable of detecting the upper work roll 7 and the lower work roll 8 is fixed on the frame 1 . The magnesium alloy sheet 2 warm rolling device also includes a controller, which receives the data of the infrared temperature sensor and controls the temperature of the heating oil tank 9, so as to maintain the temperature of the upper work roll 7 and the lower work roll 8 as required temperature. A feeding sensor that can detect feeding is fixed on the frame 1. The feeding sensor can be a proximity switch or a photoelectric switch. The controller receives the signal of the feeding sensor and controls the lubricant pump to work. To realize online lubrication, the specific process is as follows: the feed sensor detects the magnesium alloy plate 2 and transmits a signal to the controller, the controller controls the lubricant pump to work, and the nozzle 3 starts to spray lubricant. How to fix the infrared temperature sensor and the feeding sensor on the frame 1 is easy to realize and will not be described in detail here.
所述上工作辊7和下工作辊8的表面温度为400～600℃，这个温度范围为镁合金板的塑性和延展性等物理性能较佳的温度区间，所述加热油箱9内设有热油，加热油箱9内的油温需略高，具体为405～605℃为宜。The surface temperature of the upper work roll 7 and the lower work roll 8 is 400 to 600°C, which is a temperature range with better physical properties such as plasticity and ductility of the magnesium alloy plate. Oil, the oil temperature in the heating oil tank 9 needs to be slightly higher, specifically 405-605 °C.
所述进油管10和出油管11外侧包裹有隔热材料，本实施例中为耐高温涂层。The outside of the oil inlet pipe 10 and the oil outlet pipe 11 is wrapped with a heat insulating material, which is a high temperature resistant coating in this embodiment.
综上所述，本发明显而易见的有益效果为：上工作辊7和下工作辊8通过热油加热，受热均匀，有利于镁合金的轧制；通过机架1上固定的喷嘴3实现在线润滑，镁合金轧制过程中喷润滑剂使得轧制的镁合金表面性能更好，而且可以有效防止轧制过程中镁合金板粘到辊上，起到隔离的效果。To sum up, the obvious beneficial effects of the present invention are: the upper work roll 7 and the lower work roll 8 are heated by hot oil, which is heated evenly, which is beneficial to the rolling of magnesium alloys; online lubrication is realized through the fixed nozzle 3 on the frame 1 , During the rolling process of magnesium alloy, spraying lubricant makes the surface performance of the rolled magnesium alloy better, and can effectively prevent the magnesium alloy plate from sticking to the roll during the rolling process, which has the effect of isolation.
以上所述仅为本发明较佳的具体实施例，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明披露的技术范围内，根据本发明的技术方案及其发明构思加以等同替换或改变，都涵盖在本发明的保护范围内。The above are only preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Equivalent replacements or changes to the inventive concept thereof are all covered within the protection scope of the present invention.
Claims (8)
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112845593A (en) * | 2020-12-25 | 2021-05-28 | 瓯锟科技温州有限公司 | Metal sheet composite rolling mill with roll temperature online detection control function and use method thereof |
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