JPS60177981A - Production of edge lay and through-lay clad material - Google Patents

Abstract

PURPOSE:To produce a clad material with min. rolling force by providing angles of inclination to the side faces of flat plates consisting of the metallic materials to be joined to each other and press-welding the materials by upper, lower, right and left four-way rolls. CONSTITUTION:The angles of inclinations in the joint parts are designated respectively Q1, Q2 in the case of joining the other kind of metals 1, 1 to both side faces of a metallic material 2 to be press-welded. The two metallic materials 1, 2 are disposed between upper and lower rolls 10, 10 for press-welding the metallic materials and right and left sandwiching rolls 20, 20, by which the materials are rolled. The shift and build-up of the joint parts are thus prevented and the expansion in the width of the blank material is prevented by both right and left rolls 20, 20. The materials are thus effectively joined.

Description

DETAILED DESCRIPTION OF THE INVENTION [Background and Objects of the Invention] The present invention relates to a method of manufacturing cladding materials of the gill-through-lay and through-lay types.

Conventionally, methods for producing this type of cladding material include casting and soldering, but these methods have the following drawbacks, making it difficult or impossible to achieve a good joint. It was possible.

Regarding the casting method, depending on the combination of metal materials to be joined, the metal plate with a higher melting point is pre-swaged and set in a mold, and the other metal is completely cast into that space for fusion welding. However, non-uniformity due to the penetration phenomenon of the fusion welding surface (joint surface) cannot be avoided, making it unsuitable for manufacturing clad materials with high dimensional accuracy.

For example, this method has the disadvantage that it cannot be used at all in combinations where metal ions bond to produce compounds, such as the combination of steel and aluminum or iron.

Regarding soldering and soldering methods, there are hard soldering methods such as silver solder, phosphor copper solder, etc. to the metal materials to be joined, and soldering methods such as lead-tin solder and aluminum solder. It is difficult to control the thickness, and depending on the solder material mentioned above, it is impossible or difficult to combine iron and aluminum materials, which inevitably limits the manufacturing range.

In addition, when using this method, the resulting crud material does not have a fatal defect that cannot be used at temperatures above the melting point of the solder material, and all of these manufacturing methods require a lot of work and are difficult to efficiently produce in large quantities. is inappropriate.

An object of the present invention is to provide a novel method for manufacturing edge-lay and through-lay cladding materials that eliminates the drawbacks of the compounding method and the soldering method based on the conventional methods.

[Summary of the invention]

The gist of the present invention is to manufacture edge-lay and through-lay type cladding materials by using a metal material with an appropriate angle of inclination on the side surface of each flat plate to be joined to each other. This is a method of pressure welding using directional rolls, and is performed by cold pressure welding, hot pressure welding, or pressure welding by energization.

To explain its structure, prepare all the materials with an appropriate inclination angle for the side joint of flat plates made of dissimilar metals to be pressure-welded, arrange the dissimilar metal plates, and place the upper part,
This is a method of manufacturing cladding materials by crimping and welding them using a special rolling mill with pressure rolls installed at the bottom and on the left and right sides. Its action is to create a tilting angle of 50 to 45 degrees on the side surface of the flat plate of the metal materials to be welded, and when joining, roll it with both one and lower rolls to prevent deviations and rises in the joint. This method applies a one-pass rolling rate of 20 to 80% while preventing the material from spreading, and effectively joins the material by preventing the material from widening using both left and right rolls.

If the inclination angle is less than 5°, sufficient bonding force cannot be obtained.
If the angle of inclination is 45° or more, there will be no problem with joining, but the joint will become long and wide, making it impossible to put it to practical use in products.The preferred inclination angle is between 5° and 45°. be.

Regarding the rolling temperature, it depends on the wood to be joined,
Depending on the standard dimensions, etc., it is possible to use cold rolling, warm rolling, or hot rolling, or a method of rolling the material while heating it by applying electricity between the material and the pressure roll.

〔Example〕

Next, to describe the implementation of the present invention in comparison with the drawings, FIG. Let the inclination angles of the parts be Ql and Q2, respectively, and Ql.

Q2 has an equal angle of 5° to 45°. FIG. 2 is an explanatory diagram of the case where both metal materials are joined between the upper and lower rolls 10 and 10 for rolling the metal materials 1 and 2 and the left and right holding rolls 20 and 20. As described above, the rolling methods include rolling, hot rolling, and electrical heating.

FIG. 3 is a perspective view of a through-lay clad material that has been rolled and welded. This example shows cladding materials made of two types and three pieces of materials, but we can also manufacture cladding materials of three types of materials, as well as as many types of metal materials as possible and as many threads as possible.

〔Effect of the invention〕

Conventionally known manufacturing methods had quality defects due to the welding of the joint surfaces and the joining through solder, but the method for manufacturing clad materials of the present invention provides a tilt angle at the joint. Extremely effective with minimal rolling welding force.

In addition, because the width of the plates is controlled and pressed by the left and right rolls, there is no widening due to rolling by the upper and lower rolls, and there is no roughening of the edge surface, so there is no need for side trimming, and the edges are high and economical. It is also excellent.

Furthermore, according to the method of the present invention, cold welding can also be applied to clad materials made of combinations of copper and aluminum, iron and aluminum, etc., which tend to form intermetallic compounds, which was considered impossible in the past. It has many advantages and remarkable effects, such as being easily manufactured.

[Brief explanation of the drawing]

1 to 3 each show an embodiment of the present invention, and FIG. 1 is a perspective view showing the inclination angle of the joint on the side surface of each material;
Figure 2 shows the material shown in Figure 1 in the upper, lower, left and right four directions.
FIG. 3 is an explanatory diagram showing a mode of rolling and pressure welding with directional rolls, and FIG. 3 is a perspective view showing the pressed through lay clad material. 1.2...Metal plate to be joined, 10...
...Crimping roll, 20...Width control roll, Q
l, Q2...Inclination angle of each joint. 6-

Claims (1)

[Claims] In a method for manufacturing an elasf-ray and through-lay type cladding material in which flat plates made of different metals are connected with one regular surface, a material is prepared in which an appropriate angle of about 1 is provided at the side surface joint of a flat plate made of different metals, A method for manufacturing a clad material, which comprises arranging a plurality of flat plates of different metals and joining them using rolls in four directions: upper, lower, and left and right.