JPH0386329A - Manufacture of amorphous metallic body and amorphous metallic body - Google Patents

Abstract

PURPOSE:To easily manufacture an amorphous metallic body in the shape of a small piece by cutting, blanking, etc., a formed amorphous foil body. CONSTITUTION:The amorphous metallic body 2 in the shape of a small piece is obtained by giving a forming method such as cutting, blanking, etc., to the amorphous foil body 1. For example, the belt-like uncoiled amorphous foil body 1 is cut longitudinally along the lengthwise direction and cut laterally along the width direction to obtain amorphous metallic bodies 2 in the shape of a small piece. Besides, the amorphous metallic bodies 2 in the shape of a small piece are obtained by blanking, too. The amorphous metallic body 2 has various properties based on non-crystalline property and is used extensively for various kinds of uses, for example, when it is used as a brazing filler metal for joining, the joining strength is high and strong joining can be obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to a method for manufacturing an amorphous metal body and an amorphous metal body. That is, the present invention relates to an amorphous metal body made of a non-crystalline amorphous metal and used in a wide variety of applications, such as a brazing material, and a method for manufacturing the same.

"Technical Background" Amorphous metals have unique characteristics based on their non-crystalline nature, and have recently been widely used for various purposes. For example, when amorphous metal is used as a brazing material,
It has the following characteristics.

First, the bonding strength is generally higher than that of conventional crystalline brazing filler metals. In particular, when used for joining items used in high-temperature environments, the joining strength is significantly higher than that of conventional brazing materials.

Second, since it is amorphous and melts all at once when it reaches a predetermined liquidus temperature, its bonding strength is high from this point of view as well.

In other words, in the case of conventionally used general crystalline brazing filler metals, even when the liquidus temperature is reached, localized outflow of the solder occurs due to the low melting point parts, and the areas that do not melt are filled with the brazing filler metal. It has been pointed out that the bonding strength deteriorates from this point of view, since it does not function as a bond and remains. In other words, in conventional general brazing filler metals, there are grain boundary areas, segregated areas, and alloyed areas.

Pinhole portions and the like remained, and the remaining portions lacked bonding strength, resulting in deterioration of bonding strength. On the other hand, brazing filler metals made of non-crystalline amorphous metals melt in a -like manner, and in so-called brazing, the melt inside hardly separates, so from this point of view as well, it is possible to achieve high bonding strength and a strong bond. realizable.

``Prior Art'' By the way, such amorphous metals are generally hard, do not stretch, have poor malleability, and have poor malleability.
It is known that it can only be formed into a foil shape. That is, conventional amorphous metals have been formed only as continuous plate-shaped amorphous foils by the so-called continuous liquid quenching method. In contrast, general crystalline brazing filler metal
It is not limited to the foil form, but powder and paste forms have also been used as appropriate.

"Problems to be Solved by the Invention" By the way, the following problems have been pointed out in such conventional examples.

In other words, conventional amorphous metals have been formed as amorphous foils, which, combined with their poor malleability, poses safety problems such as sharp edges that can injure hands when handled. there were. Furthermore, it has been pointed out that during use, it is not easy to accurately and appropriately arrange the device at a predetermined location or part of the target, resulting in poor workability and a large amount of wasted material.

For example, when an amorphous foil having such poor malleability is used as a brazing material, the following problems have been pointed out.

First, the brazing filler metal made of amorphous foil is dangerous because its sharp edges often injure hands and the like during carrying, brazing, and installation work.

Second, when the objects to be joined have irregularities or other special shapes, the brazing filler metal, which is made of a plate-like amorphous foil with poor malleability, is appropriately aligned and integrated to match the special shape of the joining area. It has been pointed out that it is extremely difficult to install, and its workability is poor.

Thirdly, depending on the object to be joined, there may be cases where it is desired to place the filler material only in small dots at predetermined intervals, but it is almost impossible to place the brazing filler metal made of amorphous foil accurately in such a positional relationship. This was possible, and at most it was done in a linear arrangement similar to this. However, it has been pointed out that this method has poor workability, and that the brazing filler metal must be placed in areas other than the joint area, resulting in a large amount of wasted brazing filler metal.

Fourthly, the brazing material made of this amorphous foil is supplied and used in a rolled state. It has also been pointed out that when the base materials to be joined are alternately wound into rolls with brazing filler metal interposed therebetween, the brazing filler metal inserted at the beginning and end of the winding tends to be wasted.

Fifth, the brazing filler metal made of amorphous foil is supplied and used in a rolled state. In addition, when the base materials to be joined are alternately rolled into rolls with brazing filler metal interposed in the same way as described above, there is a problem with workability when a large amount of the intervening brazing filler metal runs out midway through the process. . In other words, at that time, on the side of the base material being wound, it is necessary to first remove the winding device, and the wound base material may loosen during that time, and on the other hand, replenishment of the roll-shaped brazing filler metal requires replenishment, etc. The process is difficult and troublesome, and there are many so-called set-up changes, which also poses a problem in workability.

Sixthly, the brazing filler metal made of an amorphous foil is supplied and used after being wound into a roll and rewound while applying tension. In the case where the base materials to be joined are alternately wound into rolls with brazing filler metal interposed in the same manner as described above, if a large amount of the intervening filler metal is cut for some reason, the brazing filler metal will be under tension. As a result, the soldering material would become tangled at the cut end and become unusable, resulting in wasted brazing material.

Such a problem has occurred when an amorphous foil having poor spreadability is used as a brazing material, for example.

Such a problem has been pointed out in the conventional example.

In view of these circumstances, the present invention has been made to solve the problems of the conventional methods described above, and by forming the amorphous foil body into a strip-shaped amorphous metal body, it has excellent safety and is suitable for use in the target. We propose a method for manufacturing an amorphous metal body and an amorphous metal body that can be placed accurately and appropriately, improves workability, eliminates material waste, is easy to store and supply, and is also easy to manufacture. The purpose is to

"Means for Solving the Problems" Technical means of the present invention that are distantly related to this object are as follows.

Claim 1 is as follows. That is, this method of manufacturing an amorphous metal body includes the following preparation process and molding process.

First, in the preparation step, an amorphous foil body made of amorphous metal formed into a foil shape is prepared. Next, in the forming step, the amorphous foil body is subjected to cutting, punching, etc. to obtain a strip-shaped amorphous metal body.

Claim 2 is as follows. That is, this amorphous metal body is obtained by cutting, punching, etc. an amorphous foil body, and has a strip-like shape.

"Function" Since the present invention consists of such means, it works as follows.

In the method for manufacturing an amorphous metal body according to claim 1 and the amorphous metal body according to claim 2, strip-like amorphous metal bodies are obtained by cutting, punching, or the like on an amorphous foil body. So the following is true.

First of all, since this amorphous metal body is in the form of strips, the bag 1
It is stored, supplied, and handled in containers such as cans and +tX. Therefore, it is easy to store, supply, etc., and there is no risk of injuring hands etc. when handling it.

Moreover, since this amorphous metal body is in the form of a strip, it can be easily and accurately and appropriately placed at a predetermined position or part of the object when it is used. Therefore, the workability is improved and there is no waste of material.

Moreover, this amorphous metal body can be easily manufactured by cutting, punching, etc., the amorphous foil body prepared in the preparation process in the forming process.

"Example" The present invention will be described in detail below based on the example shown in the drawings.

First, the manufacturing method will be explained in the order of the preparation process and the molding process, and then examples of the amorphous metal body, its use as a brazing material, and the catalyst-supporting matrix will be explained.

The preparation process is as follows.

FIG. 1 is an explanatory diagram for explaining an embodiment of the manufacturing method and amorphous metal body of the present invention.

In the preparation step, as shown in the perspective explanatory view of FIG. 1 (1), an amorphous foil body l formed by molding an amorphous metal into a foil shape is prepared.

To explain this in detail, first, amorphous metals contain iron, silicon, boron, and phosphorous as additive elements.

For example, nickel-based alloys or cobalt-based alloys, to which chromium, molybdenum, tungsten, etc. are appropriately added, are made into a non-crystalline and continuous alloy by continuous liquid quenching, that is, by quenching at an ultra-high speed in a high-temperature molten state. It is molded as a plate-like amorphous foil body 1. Centrifugal methods, single roll methods, twin roll methods, etc. are conventionally known as such continuous liquid quenching methods, and all of these methods involve spouting the above-mentioned molten material under pressure onto the surface of a rotating cooling body. An amorphous foil body 1 is molded. As shown in the figure, the amorphous foil 1 generally has a band shape, is wound into a roll, and is rewound before use.

The preparation process is as follows.

Next, the molding process will be described.

In the forming process, the amorphous foil body 1 is cut.

A punching process or the like is added to obtain a strip-like amorphous metal body 2.

To explain this in detail, for example, diagram (2) in Figure 1 shows
FIG. 1 (3) is a perspective explanatory view of the amorphous foil body 1 after being subjected to longitudinal cutting, and FIG. The amorphous foil 1 unwound into a strip shape as described above is subjected to longitudinal cutting along its elongated direction and transverse cutting along its width direction, thereby producing the plan view shown in FIG. 1 (4). As shown in the figure,
A strip-like amorphous metal body 2 is obtained.

Of course, it is also possible to obtain the strip-shaped amorphous metal body 2 by various cutting processes other than such cutting process.

Moreover, such a strip-shaped amorphous metal body 2 can be obtained not by cutting but also by punching using a continuous punch press or the like. Furthermore, by performing other processing, it is also possible to obtain strip-shaped amorphous metal bodies 2.

The molding process is as follows.

Next, the amorphous metal body 2 will be described.

The amorphous metal body 2 is manufactured by the above-described manufacturing method, that is, by following the preparation process and the molding process. That is, the amorphous metal body 2 is obtained by cutting, punching, etc. the amorphous foil body 1, and has a strip-like shape.

To explain this in detail, for example, FIG. 1 (4) is a plan view of the amorphous metal body 2 manufactured in this way, and the strip shape of the amorphous metal body 2 is the square shape shown in the figure. Other triangles.

Rectangle, 2 diamonds, trapezoid, other polygons 1 circle, ellipse.

Possible shapes include star, crescent, fan, donut, scale, and other shapes. Based on this shape, the amorphous metal body 2 is formed into a large number of fine strips, that is, into a state close to powder particles.

This amorphous metal body 2 has properties based on its non-crystalline nature, and is widely used for various purposes. For example, when used as a brazing material for bonding, it has high bonding strength and can form a strong bond. Realized.

The amorphous metal body 2 has this structure.

The following describes its use as a brazing material.

The amorphous metal body 2 can be firstly used as is or secondly.
through an adhesive or thirdly in a paste form,
Used as a brazing filler metal.

First, in the first method, which is used as is, a strip-shaped amorphous metal body 2 is placed as it is at a joining site to be joined, and the joining site is joined by heating and melting it afterward.

Next, in the method using a second organic or inorganic adhesive, for example, each strip-shaped amorphous metal body 2 is coated with an adhesive on at least a part of its surface in advance, and when disposed, the adhesive is applied slightly. After softening the adhesive by heating, it is placed together with each amorphous metal body 2 at the joint site to be joined, and the joint sites are joined by heating afterward and melting the amorphous metal body 2 . In addition, the method using the second adhesive is not based on the above-mentioned example; instead, the adhesive is first applied to the joint area to be joined, and then the amorphous metal body 2 is attached to the applied adhesive, and then the adhesive is applied afterwards. The joining portions may be joined by heating and melting the amorphous metal body 2.

Furthermore, the third method of using the paste-like material is to mix the amorphous metal body 2 with other substances such as an adhesive to form a paste, apply this to the joint area to be joined, and dry and heat it afterward to form a paste. to join.

The use as a brazing material is carried out in this way.

Next, an example of a catalyst-supported matrix will be described.

FIGS. 2 to 5 are perspective explanatory views for explaining an example of manufacturing a roll-shaped heat-resistant structure, which is an example of the catalyst-supporting matrix 3, using the amorphous metal body 2 as a brazing material.

To explain the production of this catalyst-supporting matrix 3 with reference to these drawings, first, as shown in FIG. A metal corrugated sheet material 5 is prepared in the form of a band in which corrugated irregularities are continuously corrugated.

Next, as shown in FIG. 3(2), the adhesive 6 is applied at predetermined intervals to the outside of the top and trough portions of the corrugated sheet material 5 to be bonded. Thereafter, as shown in FIG. 3 (3), a strip-shaped amorphous metal body 2 serving as a brazing material is pasted onto the adhesive 6 thus applied.

The adhesive 6 and the amorphous metal body 2 are applied not only to the front side of the corrugated sheet material 5 as shown in the figure, but also to the back side thereof.

Pasted. Further, the applied adhesive 6 is allowed to dry afterwards. Thereafter, as shown in FIG. 4, the flat plate material 4 shown in FIG. 2 and the corrugated sheet material 5 shown in FIG. It is wound up. The thus wound flat plate material 4 and corrugated plate material 5 to be welded are heated afterward, so that the interposed amorphous metal body 2 is melted, and the joining portions of the two are joined. In this way the fifth
The catalyst supporting base 3 shown in the figure is manufactured.

The above-mentioned manufacturing method is only one example, and the order of each step may be different from this.Of course, the amorphous metal body 2 as a brazing material can also be used without using the adhesive 6 as described above. In addition, the catalyst-carrying matrix 3 may be in the form of a laminated block, in addition to the roll-shaped one shown in the figure, or one in the form of a spreading method.

In the catalyst supporting body 3 shown in FIG. 5, each space of the corrugated plate material 5 is divided into independent spaces by the flat plate material 4, so that the flat plate material 4 and the corrugated plate material 5 constitute a cell wall, and a hollow columnar shape is formed. It forms a honeycomb structure, which is a planar collection of cells. Such a catalyst supporting body 3 is used, for example, in a catalytic converter for purifying exhaust gas of an automobile engine, and a catalyst such as platinum or palladium is adhered to the surfaces of the flat plate material 4 and the corrugated plate material 5.

An example of the catalyst supporting matrix 3 is as follows.

The amorphous metal body 2 and the manufacturing method thereof according to the present invention are as described above.

Therefore, it becomes as follows.

In this method of manufacturing the amorphous metal body 2 and the amorphous metal body 2, the amorphous metal body 2 is formed into a strip-like amorphous metal body 2 by cutting, punching, etc. the amorphous foil body l. Therefore, it becomes as follows. First, since this amorphous metal body 2 has a strip shape, the bag 1
It is stored, supplied, and handled in containers such as cans and bottles. Therefore, compared to conventional amorphous foils, it is easier to store them.

It is easy to supply, etc., and there is no risk of injuring hands etc. when handling. That is, although this amorphous metal body 2 is also hard, does not stretch, lacks flexibility, and has poor malleability, it is cut into pieces and stored, so there is no risk of injuring hands or the like.

Furthermore, since the amorphous metal body 2 is in the form of a strip, it can be easily and accurately and appropriately placed at a predetermined position or part of the object when it is used. In other words, the amorphous metal body 2 is
Compared to conventional amorphous foils (continuous plate-shaped amorphous foils 1 with poor spreadability), the foils are cut into small pieces, making them extremely easy to arrange, improving workability and eliminating material waste.

Moreover, this amorphous metal body 2 is easily manufactured by cutting, punching, etc., the amorphous foil body 1 prepared in the preparation process in the forming process.

The amorphous metal body 2 has such excellent properties. Therefore, for example, when such an amorphous metal body 2 is used as a brazing material, the following 1. Second. Third. 4th. Fifth. It will be like the 6th and 7th.

First, the amorphous metal body or brazing filler metal is stored and transported in a state where it is cut into pieces and stored.

Since supply and brazing are used for installation work, etc., there is no risk of injury to hands, etc.

Second, even when the object to be joined has irregularities or other special shapes, such as the corrugated sheet material 5, the brazing filler metal that spans the amorphous metal body is broken into pieces, so that the joining parts with such special shapes can be It can be arranged in an integrated manner in accordance with the requirements.

Thirdly, depending on the object to be joined, there may be cases where it is desired to arrange only small dot-shaped joining parts at predetermined intervals.

In such a case, since the brazing filler metal that covers the amorphous metal body is broken into pieces, it can be easily and accurately placed only at such dot-shaped joint sites, and it is not placed unnecessarily at other joint sites. There is no such thing as being set up.

Fourth, when the base materials to be joined, for example, the flat plate material 4 and the corrugated sheet material 5, are alternately rolled into a roll shape with a brazing material interposed therebetween (see the above-mentioned Fig. 4, etc.), this brazing material is cut into pieces. Since it is made of an amorphous metal body 2, the winding start and winding end portions are also interposed without waste.

Fifth, similarly, when the base material to be welded is wound into a roll, it is easy to replenish the brazing filler metal, which is interposed in large quantities, when it runs out midway through the process. That is, since the brazing filler metal is made of the amorphous metal body 2 cut into pieces, its replenishment can be achieved by replenishing the storage hopper or the like, and is extremely easy. Furthermore, during this time, it is not necessary to temporarily remove the winding device on the side of the base material to be joined, and the wound base material does not loosen as a result of this, and so-called setup changes are not performed.

Sixthly, when the base material to be welded is wound into a roll, the brazing filler metal consists of the amorphous metal body 2 cut into pieces, so cutting when using the amorphous foil body 1 as in the past No accidents will occur.

Seventhly, the brazing filler metal made of the amorphous metal body 2 has the high bonding strength characteristic of amorphous metals, and strongly bonds the base materials to be bonded.

When the amorphous metal body 2 is used as a brazing material,
It goes like this.

"Effects of the Invention" The method for manufacturing an amorphous metal body and the amorphous metal body according to the present invention exhibit the following effects by forming the amorphous foil body into a strip-like amorphous metal body.

That is, since it is stored, supplied, and handled in a container such as a bag or a bottle, it is easy to store, supply, etc., and is excellent in safety because it does not injure hands or the like. In addition, when using it, it can be easily and accurately and appropriately placed at a predetermined position or part of the object, improving work efficiency and eliminating wasted material. Moreover, by following the preparation process and the molding process, it can be manufactured easily and cost-effectively.

For example, when such an amorphous metal body is used as a brazing material, the result will be as follows. First, it is safe to carry and braze without injuring hands or the like during installation work.

Second, even when the object to be welded has irregularities or other special shapes, it can be arranged to suitably align with the irregularities, resulting in good workability. Thirdly, it is possible to accurately arrange even small dot-shaped joint parts to be joined, resulting in good workability and no wasted material. Fourthly, in the case where the objects to be joined are alternately wound into rolls through the brazing material, there is no waste of material at the beginning and end of the roll. Fifth, in a similar case, it is easy to replenish in the middle and change the setup on the base material side.

There is no looseness and workability is good from this aspect as well. Sixthly, in a case similar to this, cutting accidents during cutting will not occur, and material waste will be eliminated from this aspect as well. Seventhly, of course, the bonding strength is also high.

In this way, the problems that existed in this type of conventional example are completely eliminated, and the effects of the present invention are remarkable and great.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram for explaining the method for manufacturing an amorphous metal body and an embodiment of the amorphous metal body according to the present invention. Figure (1) is a perspective explanatory diagram of the amorphous foil body, Figure (2) is a perspective explanatory diagram of the amorphous foil body after vertical cutting, and Figure (3) is a diagram after further cross-cutting. Figure (4) is a plan view of the manufactured amorphous metal body. FIGS. 2 to 5 provide an explanation of an example of manufacturing a catalyst-supporting base using an amorphous metal body as a brazing material.
It is a perspective explanatory view. FIG. 2 shows a flat plate material. Figure 3 shows corrugated sheet material;
Figure (1) shows the original state, Figure (2) shows the state with adhesive applied, and Figure (3) shows the state with an amorphous metal body further attached. FIG. 4 shows the state in which the flat plate material and the corrugated plate material are wound up. FIG. 5 shows the prepared catalyst-supported matrix. 1... 2... 3... 4... 5... 6... Amorphous foil body Amorphous metal body Catalyst supporting matrix Flat plate material Corrugated plate material Adhesive Figure 1 (1) Figure Figure Figure Figure figure

Claims (2)

[Claims] (1) A preparation process of preparing an amorphous foil body made by molding amorphous metal into a foil shape, and then a forming process of obtaining a strip-shaped amorphous metal body by cutting, punching, etc. on the amorphous foil body. A method for manufacturing an amorphous metal body, comprising: (2) An amorphous metal body obtained by cutting, punching, etc. an amorphous foil body, and having a strip-like shape.