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This section provides an overview for gouging rods as well as their applications and principles. Also, please take a look at the list of 10 gouging rod manufacturers and their company rankings. Here are the top-ranked gouging rod companies as of December, 2024: 1.VARUN ELECTRODES PRIVATE LIMITED, 2.Amtec Welding Products, Inc., 3.I-market Thailand.
Table of Contents
A gouging rod is a carbon rod for gouging using a welding machine.
The purpose of gouging is to remove defective areas that occur during welding. An arc is generated between the carbon gouging rod and the metal plate to melt the metal around the defective area, and at the same time, the molten metal is mechanically removed to groove the metal plate.
Note that arc refers to arc welding using the electrical discharge phenomenon. It refers to a welding method in which the base metal and gouging rod are melted by the high heat of the arc generated between the base metal and the gouging rod.
Gouging rods are used in the arc-air method. The arc-air method is a method of digging trenches by melting a metal base material with an arc and blowing the molten metal away with a high-speed air jet.
Major applications include steel frames, bridges, shipbuilding, and can manufacturing. It can be used for cutting the back of welds, cutting bevels, or defects in welds, or it can be used for cutting castings, such as the pouring of castings or the opening of a hot water tank, or for cutting nests.
Other applications include U-shaped beveling, cutting, and drilling of mild steel plates, and processing of cast iron and cast steel repair welding.
In air-arc gouging using a gouging rod, a gouging rod is placed between a torch and a base metal, and a DC or AC arc is generated between this electrode and the base metal to melt the material locally while blowing it away with air to dig a groove.
There is another method that does not use air, but uses an AC or DC welding machine and a welding rod with a special flux applied to the mild steel core wire. Beveling of stainless cast iron, mild steel, cast steel, and various alloy steels, removal of defects such as grooves and cracks, and drilling of holes can be easily performed by adjusting the current and the angle between the welding rod and base metal.
The angle of the welding rod to the base metal should be 10 to 30°. If the angle is smaller than this, the workability is better, but the welding rod wears out more rapidly. Conversely, if the angle is larger, deep penetration is possible, but the flow of molten metal is reduced.
DC gouging rods can be used in many ways, including beveling, cutting, drilling, and flaw removal on steel plates.
AC gouging rods are made of special high-grade raw materials to completely solve the arc difficulty inherent in AC. Outstanding arc safety improves work efficiency and economy.
DC hollow gouging rods are ideal for digging a smooth gouging trail. With a regular gouging rod, the depth of the gouging moat is dug sharply, but with a hollow, the current is not concentrated at the tip, making it easier to dig a shallow, U-shaped bottom.
There are two methods of gouging using gouging rods:
The air carbon arc gouging method is a method of removing defects by melting the base metal by generating an arc between the gouging rod and the base metal. When the base metal is melted, air is injected along the gouging rod to remove the molten metal.
The air carbon arc gouging method is more efficient than conventional methods and can be used for stainless steel. Another advantage is that it has less impact on the base metal.
Plasma arc gouging method is a method using plasma cutting and transitional plasma arc. The high-density, high-temperature energy of the plasma arc causes little deformation after gouging and can be applied to any metal.
Another advantage is that the work can be automated and does not generate as much noise and dust as the air carbon arc gouging method. Therefore, the plasma arc gouging method is often used for gouging.
*Including some distributors, etc.
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Amtec Welding Products, Inc. is a manufacturer of products from electrodes that is headquartered in Wyline, Texas and was established in 1892. The company’s product lineup categories are made up of electrodes, epoxy, insulating compound, powder, solder, and TIG. Specifics of the products are Amtec’s 3 Cast Iron MIG, 63 Chromium Carbide HS,, and AP Hard Surfacing Wire. The company also offers welding repairs of electrodes, rods, and wires. Under the repair welding and maintenance industry for markets in need of such.
Techniweld USA LLC, founded in 1985 and headquartered in Atlanta, Georgia, United States, is a manufacturer, distributor, and wholesale supplier of welding, safety, and industrial supplies. The company's product portfolio covers a wide range of tools and supplies from its own brands and a number of others. Its product categories include a range of handheld power tools, measuring and leveling tools, and welding PPE. Its welding supply range contains more than 1,000 individual products, including filler materials, arc welding accessories, and tig welding rods. The company's services include timely delivery and fulfillment for its smaller suppliers.
ESAB, founded in 1904 and headquartered in Maryland, United States, is a manufacturer of welding as well as cutting equipment and consumables. It manufactures accessories and consumables, arc welding equipment, cutting automation, filler metals, and gas equipment. Moreover, it offers manual plasma cutting, PPE/Safety, robotics, torches, and welding automation. For arc welding, Fabricator EM 400i, for instance, is ideal for heavy industries due to the use of solid and flux-cored wires together with fabricator feed. ESAB has earned ISO 9001, ISO 14001, and the Occupational Health and Safety Advisory Services 18001 certifications.
Kim Tiong Enterprise Pte Ltd., established in 1983 and headquartered in Singapore, operates as a supplier specializing in marine and ship products. The company offers a range of products, including fire safety equipment, eye wash stations, water rescue equipment, high-visibility gloves, respiratory protection, and more. It provides a selection of items, such as general ship stores, deck & engine stores, ship spares, bonded stores, and safety equipment & products. The company caters to a diverse clientele, which includes tugs and barges, container liners, conventional/cargo vessels, offshore supply boats, and various special purpose vessels.
Ranking as of December 2024
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | VARUN ELECTRODES PRIVATE LIMITED |
16.7%
|
| 2 | Amtec Welding Products, Inc. |
16.7%
|
| 3 | I-market Thailand |
15.0%
|
| 4 | Yangzi Welding Co,.Ltd |
11.7%
|
| 5 | Kim Tiong Enterprise Pte Ltd |
10.0%
|
| 6 | Xingshi Carbon and Graphite |
8.3%
|
| 7 | Wyler Enterprises, INC. |
6.7%
|
| 8 | Techniweld USA |
6.7%
|
| 9 | Astaras, Inc., |
5.0%
|
| 10 | ESAB |
3.3%
|
Derivation Method
The ranking is calculated based on the click share within the gouging rod page as of December 2024. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
Newly Established Company
Company with a History
*Including some distributors, etc.
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
|
United States of America
|
3 | 37.5% |
Thailand
|
1 | 12.5% |
Philippines
|
1 | 12.5% |
India
|
1 | 12.5% |
China
|
1 | 12.5% |
|
Singapore
|
1 | 12.5% |
