JPH0318490A - Production of clad material - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] [Purpose of the invention] (Industrial application field) The present invention relates to a method for manufacturing clay and carbon materials.

(Prior art) Cla and de materials are made by polymerizing and joining two or more different types of metal materials, so that composite performance that cannot be obtained with a single type of metal material can be obtained as a whole. This is what I did.

The type of metal materials to be combined and the thickness of the metal materials are determined based on the application of the quad material so as to obtain a predetermined performance. For example, by combining two pieces of copper wood on both sides of copal wood,
The cladding material constitutes the cladding material of the layer, and the cap of the semiconductor element is constructed using this cladding material. And this club,
For hard material products, the plate thickness ratio of the cor-9-cor material and the 2-kel material is determined so as to obtain a coefficient of thermal expansion corresponding to that of the substrate on which the semiconductor element is mounted.

Crushed materials are manufactured by polymerizing and rolling a plurality of metal materials, and then polymerizing and joining each metal material. Conventionally, in order to manufacture a clad material that combines metal materials with the required thickness, the material before rolling is made with a thickness that corresponds to the thickness of each metal material in the clad material. Each metal material having a .

(Problem to be solved by the invention) However, in such a conventional method of manufacturing Ku2, Do material,
Depending on the thickness of the metal material before rolling, the thickness of the metal material in the cracked and closed materials after rolling is determined. For this reason,
In order to manufacture a metal material made by combining metal materials with highly accurate plate thickness, it is necessary to use metal materials with high plate thickness accuracy as the raw material. However, it is difficult to prepare metal materials with highly accurate thickness, and if the thickness accuracy of the metal material is poor, the accuracy of the thickness of the metal material in the cladding material is also low. It may not be possible to demonstrate sufficient accuracy as a material.

In addition, when changing the thickness of the metal material in the cladding material during rolling, stop the rolling mill, remove the coil of the metal material whose thickness is to be changed, and replace the coil of the metal material with the new thickness. The production efficiency of cladding material is low since it is necessary to install it and drive the rolling mill again.

The present invention has been made based on the above-mentioned circumstances, and provides a manufacturing method capable of efficiently and accurately controlling the plate thickness of metal materials to obtain a cladding material combining metal materials with highly accurate plate thickness. It is something.

[Structure of the Invention (Means and Effects for Solving the Problems) In order to achieve the above object, according to the method for producing a metal material of the present invention, a plurality of different metal materials are layered and rolled, and these materials are rolled. When forming metal materials that are crimped and bonded together, when each metal material is piled up and rolled, the plate thickness of each metal material after rolling is determined for each metal material sent to the rolling mill. It is characterized by applying tension according to the

When manufacturing cladding materials, the inventor of the present invention has repeatedly conducted research into combining metal materials with highly accurate plate thicknesses, that is, manufacturing cladding materials with a predetermined cladding and doping ratio with high precision. Ta. The inventor believes that in conventional manufacturing methods, the initial thickness of the metal material determines the thickness of the product metal material, and there is a limit to the fact that the thickness is not controlled during rolling. We focused on obtaining an accurate plate thickness after rolling by controlling the plate thickness, and found that applying tension to the metal material is an appropriate method for controlling the plate thickness.

In other words, by applying tension to the metal material during rolling,
Metal materials can be easily deformed.

Utilizing this fact, if the rolling force is the same, the greater the tension applied to the metal material, the thinner the plate will be. For this reason, tension is intentionally applied to the metal material during rolling, and by changing this tension, the amount of deformation of the metal material within the roll bit of the rolling mill can be changed, and as a result, the thickness of the metal material can be controlled. This makes it possible to control the cladding ratio.

Specifically, the thickness of each metal material in the cladding material after rolling is measured, this measured value is compared with the thickness value of a predetermined metal material, and the rolling machine is adjusted according to the result. Controls the tension applied to the metal material in front of the The means for applying tension to the metal material is achieved by controlling the torque of each reel around which the metal material is wound. Torque control includes current control and air brake control. (Example) An example of the present invention will be described with reference to the drawings.

FIG. 1 is a functional configuration diagram showing the manufacturing method. This example shows the case where a three-layer copper material is produced by polymerizing a copper material on both sides of a copper material (Fe--Ni--Co alloy).

Copal wood 1 and 2, Keru wood 2 #3 c')
4, wound around T5, 6, unwound from reels 4 to 6, and passed between rolling rolls 7, 7 in a mutually overlapping state to be press-bonded together. Crimp-bonded metal materials 1~
3 is wound with the winding b reel 8. Each reel 4 to 6 is provided with tension applying means 9 p 1 0 t 1 1 for each reel 4
Tension applying means 9 to 11 individually apply a predetermined amount of tension to the core materials 1 and 2, and the core materials 2 and 3, which are fed out from the rollers 1 and 6 and sent to the rolling rolls 7 and 7. . The tension applying means 9 to 11 include, for example, torque control of the reels 4 to 6.

The rolling roll 7.7 is made of copal material 1 or nickel material 2,
The rolling force applied to the rolling rolls 7, 7 is measured by the load cell 12, and the result is output to the control device 13.
The thickness of each of the copal material 1 and the nickel materials 2 and 3 that have passed through and been crimped and bonded is measured by a thickness measuring device 14, and the results are output to the control device 13. 1. In addition, the thickness values and deformation resistance values of the copal material 1k and the copper material 2, 3 before rolling are input into the control device 13. And the control device 13d
Calculations are made based on these data, and each tension applying means 9 to
11 to adjust the magnitude of the tension.

Now, the thickness of copal material 1 and nickel material 2.3 is h,
, h2, h,% The tension applied by the tension applying means 9 to 11 to the copal material 1 and the nickel materials 2 and 3 is 1.12,
1. When rolling is carried out as 1.・{-ru1'i? and 2, Kel wood 2, 3
As shown in FIG. 2, let h,', h2', hs/. Next, the tension applied to the copal material 1 is changed from t1 to t,'
When rolling is performed by changing to
Thickness of the wood 2 and 3 h, // , h2/
/ , h3//.

Utilizing this effect, the plate thicknesses of copal materials 1, 2, and kel materials 2 and 3 in the clad material after rolling are measured, and the measurement results are input to the control device 13. The control device 13 compares the input measurement value with a preset plate thickness value, and controls the tension by the tension applying means 9 to 11 so that the two match. Tension applying means 9 to 11 receive a command from the control device 13 and apply tension to each material so that the thickness of copal materials 1, 2, and kel materials 2 and 3 in the cladding material becomes a predetermined thickness. control In this way, a cladding material having a predetermined cladding and cladding ratio can be manufactured with high precision.

1. When manufacturing cladding materials using materials with large differences in deformation resistance, the method of the present invention can be used to control the tension of each member to achieve cladding and deformation that could not be obtained up to now. It is possible to obtain a cladding material with a high ratio of cladding and cladding, as well as a cladding material of a material that cannot be conventionally cladded.

It should be noted that the present invention is not limited to this embodiment;
It can be widely applied to the production of hardwood materials.

[Effects of the Invention] As explained above, according to the method for producing a metal material according to the present invention, the tension applied to the metal material in the pre-rolling stage is controlled, so that the metal material after rolling is By controlling the plate thickness with high precision, it is possible to obtain a cracked material that is a combination of metal materials with highly accurate plate thickness. Therefore, it is possible to form cracks and dowels with high accuracy without being affected by the accuracy of the thickness of the metal material before rolling, and the thickness of the metal material can be increased while continuing rolling without changing the metal material during rolling. can be controlled.

[Brief explanation of drawings]

1...Kovar wood, Z*S●...2, Kel wood, y-●
- Rolling roll, 9, 10.11... Tension applying means.

Claims (1)

[Claims] When stacking and rolling a plurality of different metal materials to obtain a cladding material in which these metal materials are bonded by pressure, each metal material sent to the rolling mill when stacking and rolling each metal material is A method for manufacturing cladding material, characterized by applying tension according to the thickness of the metal material.