JP2009028796A - Equipment for bonding multilayered strips by pressure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an equipment for bonding multilayered strips by pressure, which is capable of: removing stabilized layers of materials, and then, bonding the materials before the stabilization layers (oxide layers) are formed again; joining the materials while activating them by heating at a high temperature; removing and cleaning dust on the surfaces of strips and also joining the strips while preventing reattachment of the dust; correctly maintaining such tension as is at the time of joining each strip; and conrolling strips so that each rolling elongation rate of each strip at the time of pressure bonding becomes almost same. <P>SOLUTION: The equipment for bonding multilayered strips by pressure includes a plurality of pull-out reel devices 14a, 14b, a plurality of pull-out tension controlling devices 16a, 16b, a surface activation device 18, a pressure bonding device 20, and a winding reel device 22. The pressure bonding device 20 is provided with a pair of pressure bonding rolls 21a, 21b by which plurality of strips are bonded by pressure, and the pair of pressure bonding rolls have different diameters and/or are rotationally driven at a different peripheral speed so that elongation and distortion of each strip at its output side become equivalent. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a strip multi-layer crimping facility for crimping a plurality of strips.

  As a means for producing a clad material by pressure bonding a plurality of strips, for example, “Plate thickness production method at the time of producing an Al / stainless steel clad plate” disclosed in Japanese Patent Laid-Open No. 4-138884 (Patent Document 1) is disclosed. Yes. As schematically shown in FIG. 3, heating devices 5 and 6 and a rolling mill 7 are provided, and by adjusting the heating temperature of Al or Al alloy, “between clad material” and “between Al or Al alloy and rolling rolls” ”Is changed, and the thickness of the product is thereby controlled. In this figure, 1 and 2 are payoff reels, 3 and 4 are coils, and 8 is a tension reel.

Japanese Patent Laid-Open No. 4-138884

  However, in the above-described means, since the band plate is pressure-bonded in the air, the stabilization layer (eg, oxide film) formed on the surface of the band plate is not sufficiently cleaned and activated, and the pressure bonding strength is low. was there. In addition, a test example in which a plate material (cut plate) is pressure-bonded by batch processing in vacuum has been reported, but the surface cannot be cleaned and activated in vacuum, and a cut plate that has been processed externally in advance can be used. Then, since it is stabilized (for example, oxidized) in a short time, there is a problem that the pressure bonding strength is still low.

  In other words, in order to produce a clad material having a high compression strength by crimping a strip, the material is heated to a high temperature after the stabilization layer is removed and crimped before the stabilization layer (oxide layer) is formed again. However, it is essential to remove and clean the surface of the strip and prevent re-adhesion. However, there has not been a strip multi-layer crimping facility that can reliably perform these steps.

  In addition, in order to produce a clad material with higher quality / high bonding strength, the tension at the time of bonding of each strip is accurately maintained, and each tension is an optimum value corresponding to the hardness of the strip before pressing. It is necessary to make the pressure drawing ratios of the respective strips at the time of pressure bonding substantially equal.

  The present invention has been developed to meet such a demand. That is, the main purpose of the present invention is to remove the stabilization layer and to be pressure-bonded before the stabilization layer (oxidation layer) is formed again, can be activated to join the material at a high temperature, It is possible to remove and wash the dust on the surface of the band plate and prevent re-adhesion, and to maintain the tension during bonding of each band plate accurately. An object of the present invention is to provide a strip multi-layer crimping facility that can be controlled so that the drawing ratio is substantially equal.

  According to the present invention, a plurality of unwinding reel devices for respectively unwinding a plurality of coiled strips in a vacuum vessel that is evacuated by a vacuum pump, and the tension of the strips unwound by the unwinding reel device. A plurality of unwinding tension control facilities that respectively control, a surface activation device that cleans and activates a bonding surface of a plurality of strips unwound from the unwinding reel device, and the plurality of strips in a vacuum A crimping device for crimping, and a take-up reel device for winding the crimped single strip into a coil shape. The crimping device includes a pair of crimping rolls for crimping a plurality of strips. The pair of crimping rolls has a different diameter and / or is rotationally driven at different peripheral speeds so that the elongation strain on the exit side of each strip is the same. Facilities are provided.

According to the configuration of the present invention, by performing surface activation in a vacuum vessel, it is possible to perform pressure bonding while removing the stabilization layer and preventing the stabilization layer (oxide layer) from being formed again, Debris on the surface of the strip can be removed and washed, and reattachment can be prevented and bonding can be performed. Further, by incorporating the unwinding tension control facility in the vacuum vessel, the tension at the time of joining the strips can be accurately maintained.
Also, for example, when the strip is hard and soft, the hard side has a small diameter to increase the average surface pressure, and conversely, the soft side has a large diameter to reduce the average surface thickness and the elongation strain on the exit side is the same. Can be. In this case, at the neutral point, the material speed and the roll speed coincide with each other, and in the strip having the same thickness, the thickness is almost the same on the exit side.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. In addition, the same code | symbol is attached | subjected to the common part in each figure, and the overlapping description is abbreviate | omitted. FIG. 1 is an overall configuration diagram of a strip multi-layer crimping facility of the present invention. As shown in this figure, a strip multi-layer crimping facility 10 according to the present invention includes a plurality of (two in this figure) unwinding reel devices 14a and 14b and a plurality of unwinding reel devices 14a and 14b. (Two in this figure) unwinding tension control equipment 16a, 16b, surface activation device 18, crimping device 20, and take-up reel device 22 are provided. In addition, this invention is not limited to two unwinding reel apparatuses and unwinding tension control equipment, You may provide these three or more.

  2 is a cross-sectional view taken along line AA in FIG. As shown in this figure, the unwinding reel device 14a includes a sandwiching drum 24 that sandwiches the unwinding spool 23 of the coiled strip 9a from both ends, a sealing device 26 that seals the drum 24 rotatably, and a sealing device 26. And a diaphragm 28 which seals the belt plate 9a so as to be movable in the width direction. A seal 25 is provided between the seal device 26 and the drum 24, and the space between them is rotatably sealed. Further, one end of the diaphragm 28 is fixed to the main body portion of the sealing device 26, and the other end is fixed to the vacuum vessel 12, and the sealing device 26 is hermetically sealed so as to be movable in the width direction. The drum 24 is rotationally driven from the outside by a payoff motor 15a, and the drum 24 and the motor 15a can be moved in the width direction of the strip 9a by a hydraulic cylinder 27. With this configuration, the coiled strip 9a can be unwound while sandwiching the coil (band 9a) from the outside of the vacuum vessel 12 so as to be movable in the width direction. The unwinding reel device 14b has the same configuration.

As shown in FIG. 1, the unwinding tension control equipment 16a, 16b includes a dancer roll 32 that applies tension to the strips 9a, 9b, a position detection device 34 (for example, a camera) that detects the position of the dancer roll 32, A tension control device 36 (for example, a hydraulic cylinder) is used, and the position deviation (x ₁ , x ₂ ) of the dancer roll 32 detected by the position detection device is fed back to the motor speed of the unwinding reel devices 14a and 14b. However, the tension control device 36 controls the tension of the strips 9a and 9b. With this configuration, each tension of the band plate can be set to a certain optimum value according to the hardness of the band plate before press bonding.

  The surface activation device 18 is, for example, an electron gun device that cleans and activates the plate surface layer by irradiating the bonding surfaces of the strip plates 9a and 9b with plasma or ions, and a plurality of strips unwound from the unwinding reel device. The bonding surface of the plate is cleaned and activated. With this configuration, it is possible to activate and join the materials at a high temperature simultaneously with the cleaning of the plate surface layer.

  The crimping device 20 includes a pair of crimping rolls 21a and 21b for crimping the plurality of strips 9a and 9b. The pair of crimping rolls 21a and 21b are driven by crimping rolling motors 37a and 37b, respectively. The crimping rolls 21a and 21b have different diameters and / or are rotationally driven at different peripheral speeds to crimp the plurality of strips 9a and 9b to a single strip 9c in a vacuum, Are controlled to have the same elongation strain. With this configuration, for example, when the strip is hard and soft, the hard side has a small diameter to increase the average surface pressure, and conversely, the soft side has a large diameter to reduce the average surface thickness, and the elongation strain on the exit side. Can be the same. In this case, at the neutral point, the material speed and the roll speed coincide with each other, and the strips having the same thickness have almost the same thickness on the exit side.

  The take-up reel device 22 is preferably configured in the same manner as the take-up reel devices 14a and 14b, and winds a single strip 9c crimped by a take-up motor 15c into a coil shape.

  With the above-described configuration of the present invention, surface activation is performed in the vacuum vessel 12 to remove the stabilization layer of the strips 9a and 9b and prevent the formation of the stabilization layer (oxide layer) again. At the same time, dust on the surface of the band plate can be removed and washed, and bonding can be performed while preventing re-adhesion. Further, by incorporating the unwinding tension control facilities 16a and 16b in the vacuum vessel 12, the tension at the time of joining the strips 9a and 9b can be accurately maintained.

  In addition, this invention is not limited to embodiment mentioned above, Of course, it can change variously in the range which does not deviate from the summary of this invention.

1 is an overall configuration diagram of a strip multi-layer crimping facility of the present invention. It is sectional drawing in the AA of FIG. It is explanatory drawing of the conventional strip board multilayer means.

Explanation of symbols

1, 2 Payoff reels 3, 4 Coils 5, 6 Heating device 7 Rolling machine 8 Tension reels 9a, 9b, 9c Strip plate 10 Strip plate multi-layer crimping equipment 12 Vacuum containers 14a, 14b Unwind reel devices 15a, 15b Payoff motor 16a, 16b Unwinding tension control facility 18 Surface activation device 20 Crimping device 21a, 21b Crimping roll 22 Take-up reel device 23 Unwinding spool 24 Holding drum 25 Seal 26 Sealing device 27 Hydraulic cylinder 28 Diaphragm 32 Dancer roll 34 Position detecting device 36 Tension controller 37a, 37b Crimp rolling motor

Claims (2)

A plurality of unwinding reel devices for unwinding a plurality of coiled strips in a vacuum vessel evacuated by a vacuum pump, and a plurality of windings for controlling the tension of the strips unwound by the unwinding reel device, respectively. Unloading tension control equipment, a surface activation device for cleaning and activating the bonding surfaces of a plurality of strips unwound from the unwinding reel device, and a crimping device for crimping the plurality of strips in a vacuum, A take-up reel device that winds a single strip that has been crimped into a coil;
The crimping apparatus includes a pair of crimping rolls for crimping a plurality of strips, and the pair of crimping rolls have different diameters so that the elongation strain on the exit side of each strip is the same, And / or a strip multi-layer crimping facility that is rotationally driven at different peripheral speeds.   2. The strip multi-layer crimping apparatus according to claim 1, wherein the surface activation device is an electron gun device that cleans and activates a plate surface layer by irradiating a bonding surface of the strip with plasma or ions. .

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