KR200196314Y1 - Apparatus for series welding of variety material - Google Patents

Abstract

The present invention relates to a continuous welding device for dissimilar materials, and in particular, to take advantage of two kinds of metal materials having different characteristics or functions, and to manufacture two kinds of metal materials to make mechanical parts or tools requiring different characteristics and functions for each part. It is a device for continuous welding.

The present invention as described above is the material conveying apparatus 20 and each of the side guide rolls (21) (21a) and the bottom guide rolls (22) (22a) and the multi-stage guide roller (23) installed on the mouth side, and the material A welding device 30 having a heating element 31 provided with respective contact electrodes 32 and 32a at the rear of the transfer device 20, and a material 100 and 100a at the rear of the welding device 30. Pressurizing rolls (41) (41a) are provided on both side surfaces of the upper and lower surfaces, and upper and lower horizontal rolls (42) and (42a) are provided on the upper and lower surfaces thereof, and a welded material behind the pressing device (40). Upper and lower pull-out rolls 51 and 51a having roll grooves 52 and 52a formed in the center to discharge the 100 and 100a, and the material pull-out device 50 are installed to weld the main body A. It is formed by.

Description

Dissimilar Materials Continuous Welding Device

The present invention relates to a continuous welding device for dissimilar materials, and in particular, to take advantage of two kinds of metal materials having different characteristics or functions, and to manufacture two kinds of metal materials to make mechanical parts or tools requiring different characteristics and functions for each part. It is a device for continuous welding.

In general, there is no metal material with all the functions required by the industry.

There are various properties of metal materials such as thermal conductivity, strength, ductility, toughness, hardness, corrosion resistance and heat resistance.

Therefore, when two or more excellent performances are required and the applied areas are different, a method of combining two materials is used in all of you.

In addition, even if one function is required, when the price of the material is high, only a part directly applied to the material is used, and the remaining part is a method of using a low-cost material.

All of these methods have been the subject of development for a long time, using the principle of welding and joining.

Current examples include automotive engine valves used by welding heat-resistant materials and structural steels, and stainless clad steels used for low-cost chemical structures by combining stainless steel and carbon steel with excellent corrosion resistance. have.

The valve for automobile engine and the clad steel mentioned above have a big difference in terms of its shape. In the case of the valve, as shown in FIG. 1, two materials 10 and 10a are connected in the longitudinal direction. ego,

In the case of the clad steel, as shown in FIG. 2, two raw materials 11 and 11a in the form of a plate are overlapped, that is, connected in the thickness direction.

In the case of a valve connected in the double longitudinal direction, it is mainly manufactured by friction welding.

In the friction welding method, as shown in FIG. 3, the two materials 10 and 10a are brought into contact with each other when the adhesive portions 13 are contacted to attach the two materials 10 and 10a to the holder 12 that is rotatable. When rotating at a very high speed, frictional heat is generated at the friction part 13, and when the frictional heat exceeds the melting point of the material, welding becomes possible. At this time, the adhesion of the material is achieved by pressing the two materials 10 and 10a. That's how it is done.

In this friction welding method, since the welding is always performed while the two materials 10 and 10a rotate, the shape of the welding interface always appears circular.

For the above reasons, if a welding of a non-circular cross section is desired, a large amount of processing is required after welding.

If it is necessary to weld the rectangular rod-shaped part in the longitudinal direction, the round bar having a diameter of more than the diagonal size must be welded and processed, so that the real error rate of the material is extremely low. This is impossible.

In addition, friction welding has a problem of low productivity because only welding of one part at a time is possible.

The present invention was devised to solve the above problems in consideration of the above problems, and the continuous welding device is provided with a material transfer device at the side of the mouth so as to easily, easily and efficiently weld different kinds of welding materials, and the rear of the same. There was installed a welding device for joining each material, the rear was installed a pressure device for joining the material, the rear of the pressure device is to be equipped with a material pull-out device for discharging the welded material.

1 is a dissimilar material welded in the longitudinal direction.

2 is a dissimilar material welded in the thickness direction.

3 is a perspective view schematically showing a conventional dissimilar material welding.

4 is a block diagram of the welding device of the present invention.

5 is a block diagram of a material transport apparatus of the present invention.

6 is a pressure roll configuration of the present invention.

7 is a block diagram of a pullout roll material of the present invention.

8 is a perspective view of a product produced by the welding apparatus of the present invention.

* Explanation of symbols for main parts of the drawings

20: material feed device 21, 21a: side guide roll

22,22a: Base guide roll 23: Top multistage guide roll

30: welding apparatus 31: heating element

32, 32a: contact electrode 40: pressurizing device

41,41a: Pressing roll 42,42a: Top and bottom horizontal rolls

50: pull out device 51, 51a: pull out roll

52,52a: Roll Groove

The present invention was devised to solve the above problems in consideration of the above problems, and the side guide rolls 21, 21a, the bottom guide rolls 22, 22a, and the upper surface multistage guide roll 23 are installed at the entrance side. A welding device 30 having a material conveying device 20, a heating element 31 provided with contact electrodes 32 and 32a at the rear of the material conveying device 20, and the welding device. The pressurizing device 40 provided with the press rolls 41 and 41a in the both sides of the raw material 100 and 100a at the back of the 30, and the upper and lower horizontal rolls 42 and 42a in the upper and lower sides, The material pull-out device is provided at the rear of the pressing device 40 by installing upper and lower pull-out rolls 51 and 51a having roll grooves 52 and 52a formed in the center to discharge the welded material 100 and 100a. (50) is provided to form the welding apparatus main body (A).

The shape of the welding material 100 (100a) manufactured by the welding apparatus main body A of the present invention is the general shape of FIG. 5, and the welding surface 101 is formed in the longitudinal direction.

Plate material 100 (100a) is used to cut along the welding surface 101, but will have productivity and reproducibility compared to the case of welding individually.

Welding device body (A) of the present invention is the function and effect of the device when the material transfer device 20 and the welding device 30 and the pressure device 40, the material pull-out device 50 is operated at the same time.

The structure and function of each device will be described in detail below.

The material transfer device 20 is a device for transferring two materials 100 and 100a processed into strips having a narrow strip shape to the welding device 30, and generally, the material 100 ( 100a) the side guide rolls 21 and 21a and the bottom guide rolls 22 and 22a and the multi-stage guide roll 23 used in the transfer may be used.

5 is a cross-sectional view of the main part of the material conveying apparatus 20, the distance between the material 100 (100a) by using a multi-stage guide roll 23 to adjust the entry angle of the material 100 (100a) in the form of a plate It is configured to regulate.

The welding device 30 is a device for joining two materials 100 and 100a which are moved by the material transfer device 20. At the time of joining, the welding device 30 does not use a welding material, but contacts each of the electrode 32 and 32a. By using a high frequency electric resistance welding method in which high frequency power is used to heat the resistance heat of the materials 100 and 100a, high quality welding surfaces and high welding productivity can be secured therefrom.

The welding device 30 can be used as it is, without the need for partial change to a welding machine generally used in manufacturing a steel sheet by high frequency electric resistance welding.

The pressurizing device 40 maintains the angles of the materials 100 and 100a which are moved from the welding device 30 while keeping the angles of the two materials 100 and 100a heated above the melting point by resistance heating. By compressing, the oxide film formed on the welding surface is discharged and serves to complete the welding.

In addition, the pressurizing device 40 is required to have pressing rolls 41 and 41a on both side edge portions of the raw materials 100 and 100a to enable compression of the two raw materials 100 and 100a and bend during welding. The upper and lower horizontal rolls 42 and 42a and the like can be used in order to help prevent or move the plate.

On the other hand, Figure 6 shows the roll of the main portion of the pressing device 40, a pair of pressing rolls 41 (41a) of a simple form and two upper and lower horizontal pairs of upper and lower horizontal rolls 42 (cross section is trapezoidal) ( 42a) serves to allow the welding material 100 and 100a to be welded while being connected at the correct position without deformation.

The material pull-out device 50 serves to pull out the material 100 and 100a on which the welding is completed, out of the welding device body A.

FIG. 7 shows the configuration of the material pull-out device 50. In order to increase contact friction and prevent pressure from being applied to the weld bead, roll grooves 52 are disposed at the centers of the pull-out rolls 51 and 51a located at the upper and lower portions. ) 52a is in the form of being dug.

The size and performance of each device described above will vary depending on the size of the welding material used, and if the thickness or width of the material 100 (100a) increases, the capacity of the equipment such as a drive motor should also be increased.

In addition, when the welding material 100 (100a) is very long in the form of a coil, a device capable of uncoiling and a cutting device after welding must be added.

The device of the present invention as described above is a device that can improve the problem of welding between dissimilar materials manufactured by conventional friction welding method and significantly expand the application range of dissimilar joint materials by using the dissimilar material welding device of new concept. The specific effects are as follows.

One of the disadvantages of friction welding is that there are many limitations in the shape and size of the applied material. The device of the present invention is also capable of welding between thin dissimilar plates and is particularly advantageous in the manufacture of square materials. In addition, it is the most efficient welding device for welding the material of rectangular cross section.

The biggest disadvantage of friction welding is productivity, and it takes at least 1 minute per piece when welding different materials.

On the other hand, the device of the present invention can be expected to improve the productivity of 60 times or more when welding the material of 15mm diameter because the plate thickness is 15mm 10m per minute, 5mm or less can be obtained more than 40m per minute.

Since the welding device of the present invention can increase the welding speed as the thickness is thin, the productivity improvement effect becomes larger as the thickness of the product becomes smaller.

In addition, in the case of friction welding in which work is performed one at a time, it is difficult to reduce the quality deviation between products, whereas in case of using the device of the present invention, since the product can be obtained under the same welding conditions, the quality deviation between products is greatly reduced. If several parts of the same type are used, the reliability of the equipment becomes high.

In addition, the device of the present invention is particularly advantageous for joining dissimilar materials in the form of a plate can produce a sheet-like dissimilar material component that is currently difficult to commercialize.

Claims (1)

The material conveying apparatus 20 and the said material conveying apparatus 20 which installed each side guide roll 21, 21a, the bottom guide roll 22, 22a, and the upper surface multistage guide roll 23 at the entrance side. A welding device 30 having a heating element 31 provided with each of the contact electrodes 32 and 32a at a rear side thereof, and pressurized to both sides of the material 100 and 100a at the rear of the welding device 30. Pressing device 40 provided with rolls 41 and 41a and having upper and lower horizontal rolls 42 and 42a, and a material 100 and 100a welded to the rear of the pressing device 40. The upper and lower pull-out rolls 51 and 51a having the roll grooves 52 and 52a formed at the center to install the material pull-out device 50 to form the welding device body A. Dissimilar material continuous welding device.