WO2023015920A1 - 一种双金属复合轧制用轧辊 - Google Patents

一种双金属复合轧制用轧辊 Download PDF

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Publication number
WO2023015920A1
WO2023015920A1 PCT/CN2022/084800 CN2022084800W WO2023015920A1 WO 2023015920 A1 WO2023015920 A1 WO 2023015920A1 CN 2022084800 W CN2022084800 W CN 2022084800W WO 2023015920 A1 WO2023015920 A1 WO 2023015920A1
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Prior art keywords
roll
sleeve
core
torus
ring groove
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PCT/CN2022/084800
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English (en)
French (fr)
Inventor
朱卫
张忠
李鹏飞
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江苏康瑞新材料科技股份有限公司
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Priority claimed from CN202110912766.7A external-priority patent/CN113617845A/zh
Priority claimed from CN202121888058.6U external-priority patent/CN216397532U/zh
Application filed by 江苏康瑞新材料科技股份有限公司 filed Critical 江苏康瑞新材料科技股份有限公司
Publication of WO2023015920A1 publication Critical patent/WO2023015920A1/zh

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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
    • B21B1/38—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 sheets of limited length, e.g. folded sheets, superimposed sheets, pack rolling
    • 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
    • B21B27/02—Shape or construction of rolls
    • 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
    • B21B27/02—Shape or construction of rolls
    • B21B27/03—Sleeved rolls

Definitions

  • the invention relates to a roll for rolling, in particular to a roll for bimetal composite rolling.
  • the traditional bimetallic composite rolling is a processing method that combines two metals with different physical and chemical properties through rolling to make them firmly bonded to each other on the entire contact surface.
  • steel plate-aluminum alloy composite rolling as an example, when rolling with a four-roll mill, in order to avoid damage to the mill due to excessive friction, the side pressure roll cannot press the side of the work roll tightly, and the width of the workpiece is difficult to ensure. And when the compression degree of the side pressure roller is insufficient or the size deviation of the raw material is large, the aluminum alloy in the width direction is likely to produce flashes, and the steel plate is prone to burrs. The above defects need to be dealt with in subsequent production, which greatly increases the cost.
  • CN102671937B discloses an active precision four-high rolling mill, which includes a driving roll and a driven roll, and a pass is formed between the driving roll and the driven roll. Due to insufficient compression of the driven roller, defects such as flashes and burrs are prone to occur in the width direction of the workpiece.
  • the purpose of the present invention is to overcome the defects in the prior art and provide a roll for bimetal composite rolling, which can avoid defects such as flashes and burrs in the width direction while ensuring the width of the workpiece.
  • the technical solution of the present invention is to provide a roll for bimetal composite rolling, including a pair of rolls parallel to the axis, the rolls are respectively the main roll and the auxiliary roll, and the main roll is provided with a concentric
  • the ring groove of the ring groove the bimetal composite plate is an aluminum alloy-steel plate composite plate, the aluminum alloy is located at the bottom of the groove, and the steel plate is located on the aluminum alloy.
  • the ring groove is used to ensure the width of the workpiece.
  • the hardness of the aluminum alloy is lower than that of the steel plate. Placing the steel plate on the aluminum alloy can significantly reduce the generation of flashes and burrs.
  • the groove bottom of the ring groove is a torus
  • the ring groove is a structure with a wide top and a narrow bottom
  • the two sides of the ring groove are arranged symmetrically, and the sides are composed of a vertical torus section perpendicular to the torus and a
  • the setting of the inclined toroidal section and the inclined surface is helpful for the demoulding of the workpiece after the machining is completed.
  • the included angle between the inclined ring segment and the axis of the main roll is 84-86°, and this angle makes demoulding easier.
  • the main roll includes a roll core and a roll sleeve fitted on the roll core.
  • the roll sleeve includes a side roll sleeve and a middle roll sleeve, and the ring groove is formed by combining the side roll sleeve and the middle roll sleeve.
  • the size of the ring groove can be adjusted by fitting side roller sleeves and middle roller sleeves of different specifications, and workpieces of different sizes can be rolled.
  • roller sleeve and the roller core are connected by a single key or a spline, and the roller core is provided with a retaining spring located at both ends of the roller sleeve, or the roller core is provided with a shaft shoulder at one end of the roller sleeve and a shoulder at the other end of the roller sleeve. circlip at one end.
  • the single key or spline prevents relative rotation between the roller core and the roller sleeve in the circumferential direction, and facilitates the loading and unloading of the roller sleeve on the roller core.
  • the shaft shoulder and the circlip prevent the roller sleeve from slipping on the axis of the roller core.
  • a further technical solution is that the roll sleeve and the roll core are connected through threads, and the roll core is provided with a set nut located at both ends of the roll sleeve, or the roll core is provided with a shaft shoulder located at one end of the roll sleeve and a tightening nut located at the other end of the roll sleeve. fixed nut.
  • the loading and unloading of the roller sleeve on the roller core is realized by screw connection, and the setting of the set nut and the roller sleeve prevents the roller sleeve from slipping on the axis of the roller core.
  • auxiliary roller is provided with an annular protrusion matching the top of the annular groove. Adopting this structure effectively avoids burrs on the workpiece due to the gap between the main roll and the auxiliary roll.
  • the ring groove of the main roll is used to ensure the width of the workpiece, and the oblique line on the side of the ring groove makes the workpiece easy to demould.
  • the alloy can significantly reduce the generation of flash and burrs. It solves the problem that the width dimension is not easy to guarantee when using a four-roll rolling mill, and the problem of flashes or burrs on the workpiece due to insufficient compression of the side pressure rollers. The above defects need to be dealt with in subsequent production, and the cost is greatly increased.
  • the main roll adopts the structure of the roll core and the roll sleeve set on the roll core, so that the defects on the surface of the roll core can be replaced, and the material with better surface performance can also be selected to make the roll core, which is more economical.
  • the ring groove formed by the combination of the side roller sleeve and the middle roller sleeve makes the size of the ring groove adjustable and can process workpieces of different sizes.
  • Fig. 1 is the schematic diagram of embodiment 1 of the present invention.
  • Fig. 2 is a partial enlarged view C in Fig. 1;
  • Fig. 3 is the schematic diagram of embodiment 2 of the present invention.
  • Fig. 4 is a partial enlarged view B in Fig. 3;
  • Fig. 5 is the schematic diagram of embodiment 3 of the present invention.
  • FIG. 6 is a partial enlarged view D in FIG. 5 .
  • the present invention is a roll for bimetallic composite rolling
  • the roll for bimetallic composite rolling includes a pair of axially parallel rolls, namely a main roll 1 and an auxiliary roll 2 .
  • the main roll 1 includes a roll core 11 and a roll sleeve 12 fitted on the roll core.
  • the roller sleeve 12 is connected to the roller core 11 by a spline, and the roller core 11 is provided with a shaft shoulder at one end of the roller sleeve 12 and a retaining spring at the other end of the roller sleeve.
  • the roll sleeve 12 is an integral structure, and an annular groove 13 concentric with the main roll 1 is provided on the roll sleeve 12 .
  • the groove bottom of described ring groove 13 is an annular surface, and ring groove 13 is the structure that is wide at the top and narrow at the bottom.
  • the vertical torus section perpendicular to the annulus section is combined, and the side surface along the radial direction of the main roll from the groove bottom to the groove top is an inclined torus section and a vertical torus section, and the inclination angle is 84-86°.
  • the auxiliary roll 2 comprises an auxiliary roll core 21 and an auxiliary roll sleeve 22 sleeved on the roll core.
  • the auxiliary roll sleeve 22 is connected to the auxiliary roll core 21 by splines.
  • the bimetal composite plate is an aluminum alloy-steel plate composite plate, the aluminum alloy is located at the bottom of the groove, and the steel plate is located on the aluminum alloy.
  • the roller sleeve 12 includes a side roller sleeve and a middle roller sleeve
  • the ring groove 13 is formed by combining the side roller sleeve and the middle roller sleeve.
  • the groove bottom of ring groove 13 is a torus
  • ring groove 13 is the structure that is wide at the top and narrow at the bottom.
  • the sections are composed of inclined toroidal sections forming an inclined angle, and the side surface along the radial direction of the main roll from the bottom to the top of the groove is a vertical torus section and an inclined torus section, and the inclination angle is 84-86°.
  • the roller sleeve 12 is connected to the roller core 11 through threads, and the roller core 11 is provided with set nuts located at both ends of the roller sleeve 12 .
  • the auxiliary roller 2 is an integral structure, and it is provided with an annular protrusion 23 matching with the top of the groove.
  • Embodiment 3 is a diagrammatic representation of Embodiment 3
  • the difference from Embodiment 1 is that the groove bottom of the ring groove 13 is a torus, and the ring groove 13 is a structure with a wide top and a narrow bottom, and the two sides of the ring groove 13 are arranged symmetrically, and the sides are An inclined surface forming an angle of 84 to 86° with the axis of the main roll; the auxiliary roll sleeve 22 is connected with the auxiliary roll core 21 through threads, and the auxiliary roll core 21 is provided with a shaft shoulder at one end of the auxiliary roll sleeve 22 and a shoulder located at the auxiliary roll sleeve 22 the set nut at the other end.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)

Abstract

一种双金属复合轧制用轧辊，其包括一对轴线平行的轧辊，所述轧辊分别为主轧辊（1）和辅助轧辊（2），在主轧辊（1）上设有与其同心的环槽（13）。环槽（13）的槽底为圆环面，环槽（13）为上宽下窄的结构，环槽（13）的两侧面对称设置，侧面由垂直于圆环面的垂直圆环面段和与垂直圆环面段构成夹角的倾斜圆环面段组合而成，或者由与圆环面构成倾斜夹角的倾斜圆环面段和与圆环面垂直的垂直圆环面段组合而成，又或者为与主轧辊（1）轴线构成倾斜夹角的倾斜面，倾斜夹角为84～86°。轧制双金属工件时，主轧辊（1）的环槽（13）用于保证工件的宽度尺寸，倾斜圆环面段使得工件容易脱模。解决了使用四辊式轧机轧制时，宽度尺寸不易保证的问题，以及因侧压辊压紧程度不足工件产生飞边或毛刺的问题。

Description

一种双金属复合轧制用轧辊 技术领域
本发明涉及轧制用轧辊，具体涉及一种双金属复合轧制用轧辊。
背景技术
传统的双金属复合轧制是将两种不同物理、化学性质的金属通过轧制使它们在整个接触表面上，相互牢靠结合在一起的加工方法。以钢板-铝合金复合轧制举例，使用四工作辊辊轧机轧制时，为避免摩擦力过大对辊轧机造成损坏，其侧压辊不能紧压工作辊的侧面，工件宽度尺寸不易保证。且侧压辊压紧程度不足或原料尺寸偏差较大时，宽度方向铝合金容易产生飞边，钢板容易产生毛刺，以上缺陷均需要在后续的生产中处理，成本大大增加。
CN102671937B公开了一种主动式精密四辊轧机，包括主动辊、从动辊，主动辊和从动辊之间形成孔型。因从动辊压紧程度不足，工件的宽度方向容易产生飞边、毛刺等缺陷。
发明内容
本发明的目的在于克服现有技术中存在的缺陷，提供一种双金属复合轧制用轧辊，在保证工件宽度尺寸的同时，还可以避免宽度方向产生的飞边、毛刺等缺陷。
为实现上述目的，本发明的技术方案是提供了一种双金属复合轧制用轧辊，包括一对轴线平行的轧辊，所述轧辊分别为主轧辊和辅助轧辊，在主轧辊上设有与其同心的环槽，双金属复合板为铝合金-钢板复合板，铝合金位于槽底，钢板位于铝合金上面。环槽用于保证工件的宽度尺寸，铝合金硬度小于钢板，将钢板置于铝合金上面可以显著地减少飞边及毛刺的产生。
进一步的技术方案是，所述环槽的槽底为圆环面，环槽为上宽下 窄的结构，环槽的两侧面对称设置，侧面由垂直于圆环面的垂直圆环面段和与垂直圆环面段构成倾斜夹角的倾斜圆环面段组合而成，或者由与圆环面构成倾斜夹角的倾斜圆环面段和与圆环段垂直的垂直圆环面段组合而成，又或者为与主轧辊轴线构成倾斜夹角的倾斜面。倾斜圆环面段以及倾斜面的设置，有助于工件加工完成后的脱模。
进一步地，所述倾斜圆环段与主轧辊的轴线夹角为84～86°，采用这个角度，使得脱模更容易。
进一步的技术方案是，主轧辊包括辊芯和套装在辊芯上的辊套。采用这种结构，辊芯表面出现缺陷可以更换，也可以优选表面性能更优的材料制作辊芯，更为经济。
优选地，所述辊套包括侧辊套和中辊套，环槽由侧辊套与中辊套组合而成。采用这种结构，通过套装不同规格的侧辊套和中辊套，使得环槽的尺寸可调，可轧制不同尺寸的工件。
进一步的技术方案是，辊套与辊芯通过单键或花键连接，辊芯上设有位于辊套两端的卡簧，或者辊芯上设有位于辊套一端的轴肩和位于辊套另一端的卡簧。单键或花键使得辊芯与辊套在周向上不发生相对转动，且方便辊套在辊芯上的装卸。轴肩与卡簧使得辊套在辊芯轴线上不发生滑动。
进一步的技术方案是，辊套与辊芯通过螺纹连接，辊芯上设有位于辊套两端的紧定螺母，或者辊芯上设有位于辊套一端的轴肩和位于辊套另一端的紧定螺母。利用螺纹连接实现辊套在辊芯上的装卸，紧定螺母和辊套的设置使得辊套在辊芯轴线上不发生滑动。
进一步的技术方案是，辅助轧辊上设有与环槽顶部相适配的环状突起。采用这种结构，有效避免了工件因主轧辊和辅助轧辊的间隙产生毛边。
采用所述双金属复合轧制用轧辊，在轧制双金属工件时，主轧辊的环槽用于保证工件的宽度尺寸，环槽侧边的斜线使得工件容易脱 模，将钢板置于铝合金上面可以显著地减少飞边及毛刺的产生。解决了使用四辊式轧机轧制时，宽度尺寸不易保证的问题，以及因侧压辊压紧程度不足工件产生飞边或毛刺的问题，以上缺陷需要在后续的生产中处理，成本大大增加，主轧辊采用辊芯和套装在辊芯上的辊套的结构，使得辊芯表面出现缺陷可以更换，也可以优选表面性能更优的材料制作辊芯，更为经济。采用侧辊套与中辊套组合形成的环槽，使得环槽的尺寸可调，可加工不同尺寸的工件。
附图说明
图1是本发明实施例1的示意图；
图2是图1中的局部放大图C；
图3是本发明实施例2的示意图；
图4是图3中的局部放大图B；
图5是本发明实施例3的示意图；
图6是图5中的局部放大图D。
其中：1-主轧辊 2-辅助轧辊 11-辊芯 12-辊套 13-环槽 21-辅助辊芯 22-辅助辊套 23-环状突起
具体实施方式
下面结合附图和实施例，对本发明的具体实施方式作进一步描述。以下实施例仅用于更加清楚地说明本发明的技术方案，而不能以此来限制本发明的保护范围。
实施例1：
如图1所示，本发明是一种双金属复合轧制用轧辊，所述双金属复合轧制用轧辊包括一对轴线平行的轧辊，分别为主轧辊1和辅助轧辊2。主轧辊1包括辊芯11和套装在辊芯上的辊套12。所述辊套12与辊芯11通过花键连接，辊芯11上设有位于辊套12一端的轴肩和位于辊套另一端的卡簧。所述辊套12为整体结构，在辊套12上设有与主轧辊1同心的环槽13。所述环槽13的槽底为圆环面，环槽13为上宽下窄的结 构，环槽13的两侧面对称设置，侧面由与圆环面构成倾斜夹角的倾斜圆环面段和与圆环段垂直的垂直圆环面段组合而成，侧面沿主轧辊径向从槽底向槽顶依次为倾斜圆环面段和垂直圆环面段，倾斜夹角为84～86°。辅助轧辊2包括辅助辊芯21和套装在辊芯上的辅助辊套22，所述辅助辊套22与辅助辊芯21通过花键连接，辅助辊芯21上设有位于辅助辊套22一端的轴肩和位于辅助辊套22另一端的卡簧，双金属复合板为铝合金-钢板复合板，铝合金位于槽底，钢板位于铝合金上面。
实施例2：
如图1所示，与实施例1不同之处在于：辊套12包括侧辊套和中辊套，环槽13由侧辊套与中辊套组合而成。环槽13的槽底为圆环面，环槽13为上宽下窄的结构，环槽13的两侧面对称设置，侧面由垂直于圆环面的垂直圆环面段和与垂直圆环面段构成倾斜夹角的倾斜圆环面段组合而成，侧面沿主轧辊径向从槽底向槽顶依次为垂直圆环面段和倾斜圆环面段，倾斜夹角为84～86°。辊套12与辊芯11通过螺纹连接，辊芯11上设有位于辊套12两端的紧定螺母。辅助轧辊2为整体结构，其设有与凹槽顶部相适配的环状突起23。
实施例3:
如图1所示,与实施例1不同之处在于:所述环槽13的槽底为圆环面，环槽13为上宽下窄的结构，环槽13的两侧面对称设置，侧面为与主轧辊轴线构成84～86°倾斜夹角的倾斜面；辅助辊套22与辅助辊芯21通过螺纹连接，辅助辊芯21上设有位于辅助辊套22一端的轴肩和位于辅助辊套22另一端的紧定螺母。
以上所述仅是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明技术原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本发明的保护范围。

Claims (9)

  1. 一种双金属复合轧制用轧辊，包括一对轴线平行的轧辊，其特征在于：所述轧辊分别为主轧辊和辅助轧辊，在主轧辊上设有与其同心的环槽；双金属复合板为铝合金-钢板复合板，铝合金位于槽底，钢板位于铝合金上面。
  2. 根据权利要求1所述的双金属复合轧制用轧辊，其特征在于：所述环槽的槽底为圆环面，环槽为上宽下窄的结构，环槽的两侧面对称设置，侧面由垂直于圆环面的垂直圆环面段和与垂直圆环面段构成倾斜夹角的倾斜圆环面段组合而成，或者由与圆环面构成倾斜夹角的倾斜圆环面段和与圆环段垂直的垂直圆环面段组合而成，又或者仅为倾斜圆环面段。
  3. 根据权利要求2所述的双金属复合轧制用轧辊，其特征在于：所述倾斜夹角为84～86°。
  4. 根据权利要求3所述的双金属复合轧制用轧辊，其特征在于：所述主轧辊包括辊芯和套装在辊芯上的辊套。
  5. 根据权利要求4所述的双金属复合轧制用轧辊，其特征在于：所述辊套包括侧辊套和中辊套，环槽由侧辊套与中辊套组合而成。
  6. 根据权利要求4所述的双金属复合轧制用轧辊，其特征在于：所述辊套为整体结构，环槽设置在辊套上。
  7. 根据权利要求4至6任一所述的双金属复合轧制用轧辊，其特征在于：所述辊套与辊芯通过单键或花键连接，辊芯上设有位于辊套两端的卡簧，或者辊芯上设有位于辊套一端的轴肩和位于辊套另一端的卡簧。
  8. 根据权利要求4至6任一所述的双金属复合轧制用轧辊，其特征在于：所述辊套与辊芯通过螺纹连接，辊芯上设有位于辊套两端的紧定螺母，或者辊芯上设有位于辊套一端的轴肩和位于辊套另一端的紧定螺母。
  9. 根据权利要求1至6任一所述的双金属复合轧制用轧辊，其特征在于：辅助轧辊上设有与环槽顶部相适配的环状突起。
PCT/CN2022/084800 2021-08-10 2022-04-01 一种双金属复合轧制用轧辊 WO2023015920A1 (zh)

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JPS58148088A (ja) * 1982-02-26 1983-09-03 Hitachi Cable Ltd 複合線材の製造装置
JPS58151978A (ja) * 1982-03-02 1983-09-09 Hitachi Cable Ltd 複合線材製造装置
US20060201220A1 (en) * 2003-05-20 2006-09-14 Showa Denko K.K. Rolling apparatus and method of making product of miscellaneous cross section with use of same
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