KR200308495Y1 - carbon dioide Welding cable with aluminium-core - Google Patents

Abstract

The present invention relates to a cable for welding carbon dioxide gas, in particular, the power supply conductor wire is made of aluminum wire, the weight of the cable is greatly reduced, and the aluminum structure has improved the mobility, transportability and durability of the cable by improving the structure of the welding machine cable The present invention relates to a carbon dioxide gas welding cable made from cores.

The present invention is a cable for welding carbon dioxide gas, the heat-resistant thermoplastic rubber outer layer (1), the gas supply pipe (2) located in the center of the cable of the welder, twisted with aluminum wire having a diameter of 0.18 ~ 0.60mm inside the rubber outer layer The unit wire is formed of 15 power conductor wires (3), nonwoven fabric (5) surrounding the outside of the power conductor wires (3), and a control line (4) located inside the power conductor wires (3). The present invention relates to a carbon dioxide gas welding cable made of aluminum core.

The carbon dioxide gas welding machine cable constructed of aluminum wire as the power conductor wire according to the present invention reduces the weight by about 35% compared to the case of using copper as the power conductor wire. It shows the effect of improving sex and workability.

Description

Carbon dioide Welding cable with aluminum-core}

The present invention relates to a cable for welding carbon dioxide gas, in particular, the power supply conductor wire is made of aluminum wire, the weight of the cable is greatly reduced, and the aluminum structure has improved the mobility, transportability and durability of the cable by improving the structure of the welding machine cable The present invention relates to a carbon dioxide gas welding cable made from cores.

In general, the use of carbon dioxide gas welding is rapidly increasing as the welding cable can be welded at a structure, a building, a ship building site, etc., from a high level from the ground without the movement of equipment.

The conventional structure of the carbon dioxide gas welding cable as described above has a rubber outer layer 31, a gas supply pipe 32, a power supply conductor 33 and a control line 34 having an operation control function as shown in FIG. Was done. However, this structure is covered with the control wire due to the mixed structure of the power supply conductor line 33 and the control line 34, but due to the load passing by the heavy load of the vehicle and the transportation device at the construction site When a large pressure is applied to the cable, the covering layer of the control wire is damaged, and a short circuit of the power conductor wire 33 and the control wire 34 is made, which causes a paralysis of the welding function.

In addition, in order to solve the shortcomings of the carbon dioxide gas welding cable having the structure of FIG. 3 as described above, as shown in FIG. 4, a main cable composed of a rubber outer layer 41, a gas supply pipe 42, and a power conductor wire 43 ( The structure of the welding cable of the prior art which consists of the auxiliary cable 46 which separately installed 45 and the control line 44 in the outside was tried. However, the structure of the auxiliary cable 46 also protrudes to the outer surface of the main cable 45, so that the adhesion of the auxiliary cable 46 is deteriorated even with a small external force. The cause of paralysis continued.

In order to solve this problem, a group of cables for positioning the gas supply pipe 52, the power conductor line 53, and the control line 54 in one direction of the cable inside the rubber outer layer 51 as shown in FIG. However, this cable has a disadvantage that the control line 54 is located only on one side of the cable, the flexibility of the cable is used in the field, so that the fatigue of the operator is high, and the inconvenience of moving and carrying the cable is also inconvenient. As in the case of the technology, when a large pressure is applied to the cable due to the passage of the load due to the heavy loads of the vehicle and the transportation device, the covering layer of the control line is damaged, causing a short circuit problem between the power conductor line and the control line.

In addition, in order to solve this problem, as shown in FIG. 6, the gas supply pipe 62, the power conductor line 63, and the control line 64 are separately placed in the rubber outer layer 61. By placing them separately, the flexibility of the cable is reduced, and the fatigue of the worker increases, and when the length of the cable is long, there is an unfavorable problem in that the flexibility is reduced during movement or transportation.

The present invention solves the problems of the prior art as described above, by using a material that reduces the weight of the carbon dioxide gas welding cable as a power supply conductor wire, thereby greatly reducing the weight of the carbon dioxide gas welding cable requiring a long length. It is a technical problem to have a structure which increases the mobility and workability of a welding cable.

In addition, the present invention is to solve the problems of the prior art as described above to have a technical problem to have a structure for increasing the flexibility of the carbon dioxide gas welding cable.

1A is an explanatory diagram of a carbon dioxide gas welding cable according to the present invention.

1B is a cross-sectional view of the carbon dioxide gas welding cable according to the present invention.

Figure 2a is a diagram showing the step of forming a single power conductor wire unit by twisting the stretched linearized aluminum wire of the present invention.

Figure 2b is a diagram showing the step of taping the power supply wire formed of the control line and aluminum wire of the present invention by a nonwoven fabric.

Figure 2c is a view showing a step of coating with a thermoplastic rubber composition excellent in heat resistance on a cable taped with a nonwoven fabric of the present invention.

3 is an explanatory diagram showing an example of a conventional carbon dioxide gas welding cable.

4 is an explanatory diagram showing an example of a conventional carbon dioxide gas welding cable.

5 is an explanatory diagram showing an example of a carbon dioxide gas welding cable according to the prior art.

6 is an explanatory diagram showing an example of a carbon dioxide gas welding cable according to the prior art.

* Description of the symbols for the main parts of the drawings *

1 --- rubber outer layer, 2 --- gas supply pipe,

3 --- power conductor wire, 4 --- control wire,

5 --- nonwoven fabric.

Hereinafter, the present invention will be described in detail.

The present invention is a carbon dioxide gas welding cable,

Heat resistant thermoplastic rubber outer layer (1),

Gas supply pipe (2) located in the center of the cable of the welding machine,

15 power conductor wires (3) of unit wires formed by twisting an aluminum wire having a diameter of 0.18 to 0.60 mm in the inner side of the rubber outer layer,

Non-woven fabric (5) surrounding the outside of the power conductor wire (3),

It relates to a carbon dioxide gas welding cable comprising a control line (4) located inside the power conductor wire (3).

Hereinafter, described in more detail by reference to the embodiment of the present invention as follows.

1A is an explanatory diagram of a carbon dioxide gas welding cable according to the present invention.

1B is a sectional view of a carbon dioxide gas welding cable according to the present invention.

As shown in FIG. 1A, a heat resistant thermoplastic rubber outer layer 1 is formed on the outer surface of the cable. As the rubber used for the outer layer coating of the cable, an insulating rubber is used, but a thermoplastic rubber having insulation and heat resistance is preferable.

In addition, the gas supply pipe 2 located in the center of the cable used in the present invention uses an insulating, heat-resistant thermoplastic rubber.

Inside the rubber outer layer 1, 15 power conductor lines 3 of 15 unit lines are formed by twisting 30 strands of aluminum wire having a diameter of 0.18 to 0.60 mm. In the above, using the diameter of the individual aluminum wires thicker than 0.18 mm in diameter of the individual copper wires of the cable line for welding machines by conventional copper wires is to reduce the heating resistance of the cable by reducing the conductor resistance of aluminum. .

Outside the power conductor wire 3 is wrapped with a non-woven fabric (5). Wrapping with the nonwoven fabric in the above is to reduce the friction between the power conductor wire and the rubber outer layer and to increase the flexibility.

It consists of a control line 4 positioned between the power conductor lines 3. The control line 4 consists of 7 to 10 wires (7 in this design) which are covered with the same diameter of the power conductor wire.

Hereinafter, described in detail with reference to the manufacturing method of the present invention as follows.

Figure 2a is a diagram showing the step of forming a single power conductor wire unit by twisting the stretched linearized aluminum wire of the present invention.

The present invention is to linearize the individual aluminum wire with a diameter of 0.18 ~ 0.60mm. Here, it is a step of linearizing by unfolding the large diameter aluminum wire and stretching it to a thin line having a diameter of 0.18 ~ 0.60mm. The linear extension of the diameter of 0.18 to 0.60 mm is intended to be similar to the resistance value generated in the conventional cable formed of copper when the amount of alternating current used in the welding cable flows to 500 A / 700 A.

Subsequently, as shown in FIG. 2B, the extension linear aluminum wire is twisted to form one power conductor wire unit. As shown here, each of the stretched linear aluminum wires is formed of one power conductor wire unit. Then, control wires are inserted between the power conductor wires, and seven coated wires are inserted in a constant arrangement.

Then, the control wire and the power conductor wire filled with aluminum wire are taped by nonwoven fabric. Taping the nonwoven fabric above is to reduce the friction with the heat-resistant thermoplastic rubber outer layer coated on the power conductor wire and the control line and to increase the flexibility. The twisting of the unit is to have a value similar to the current flow of the conventional copper conductor wire, and to have a flexible wire or a circular cross-sectional area of the cable.

The next step consists in coating the taped thermoplastic rubber composition on the taped cable as shown in FIG. 2C. The rubber composition coated in the above is made of a rubber composition having heat-resistant thermoplastic to have a light weight and heat resistance of the rubber.

Hereinafter, the present invention will be described as an example.

Example

The power supply of the heat resistant thermoplastic rubber outer layer (1) according to the present invention, the gas supply pipe (2) located at the center of the cable of the welding machine, the unit wires formed by twisting an aluminum wire having a diameter of 0.18 to 0.60 mm in the inner side of the rubber outer layer A carbon dioxide gas welding cable having the form of FIG. 1A is formed of a conductor wire 3, a nonwoven fabric 5 surrounding the outside of the power conductor wire 3, and a control line 4 positioned between the power conductor wires. It was.

Test Example 1

The performance of the carbon dioxide gas welding cable manufactured according to the above example was tested by flowing alternating current (500A / 700A) for 4 hours continuously, and the results are shown in Table 1 below.

Comparative Test Example 1

Conventional welding machine having the same cable shape as Example and using copper power conductor wire (diameter: 0.18 mm, number of strands per unit: 66, number of units 12) in order to compare with Test Example 1 of the above embodiment The cable was tested under the same conditions and shown in Table 1 below.

Comparative Test Example 2

To compare with Test Example 1 of the above embodiment, but having the form of FIG. 1A, a welder cable using a power conductor wire having a diameter of 0.18 mm in size and twisting the number of strands of one unit into 66 strands was tested under the same conditions. The following Table 1 shows.

Test Example 1 Comparative Test Example 1 Comparative Test Example 2 Power conductor wire material aluminum Copper aluminum Single conductor wire diameter thickness (mm) 0.53mm 0.18 0.18 Number of strands per conductor line unit 30 66 66 Units per conductor line 12 12 12 Conductor Wire Resistance (Ω / km) 0.361Ω / km 0.324 Ω / km 0.477Ω / km Withstand voltage Good Good Good Cable sheath outer layer temperature (℃) 40 ~ 60 ℃ 40 ~ 60 ℃ 70 ~ 80 ℃ Cable weight (kg / km) 582kg / km 910kg / km 532kg / km

The test value is a test result of flowing alternating current (500A / 700A) for 4 hours in a carbon dioxide gas welding cable.

As shown in Table 1 above, as shown in Test Example 1 of the cable according to the present invention, the weight of the cable was about 35% lower than that of Comparative Test Example 1 (copper wire), and the resistance of the conductor wire Almost similar to the silver copper wire, the temperature of the outer layer of the cable appeared in the same range as in Comparative Test Example 1. However, in the case of Comparative Test Example 2 (each conductor wire thickness of 0.18mm), the weight of the cable was reduced by about 41% compared to Comparative Test Example 1 (Copper wire), but the conductor resistance was large (0.47730.4 / km). ) The outer layer temperature of the cable was higher (70 ~ 80 ℃) than Test Example and Comparative Test Example 1, which was not suitable for the cable.

The carbon dioxide gas welding cable composed of aluminum wire as the power conductor wire reduces the weight by about 35% compared with the case of using copper as the power conductor wire. It shows the effect of improving sex and workability.

In addition, by taping the power conductor wire and the control wire with a nonwoven fabric, the frictional force between the heat-resistant thermoplastic rubber outer layer coated on the power conductor wire and the control wire can be reduced and the flexibility can be increased. While having a value similar to the current flow of the line, it is possible to have a flexible line or circular cross-sectional area of the cable.

Claims (1)

In the carbon dioxide gas welding cable, Heat resistant thermoplastic rubber outer layer (1), Gas supply pipe (2) located in the center of the cable of the welding machine, 15 power conductor wires (3) of unit wires formed by twisting an aluminum wire having a diameter of 0.18 to 0.60 mm in the inner side of the rubber outer layer, Non-woven fabric (5) surrounding the outside of the power conductor wire (3), Cable for welding carbon dioxide gas made of a power conductor made of aluminum core, characterized in that consisting of a control line (4) positioned between the power conductor wire (3).