Welding Flux
Specifications of Welding Flux
Welding fluxes are made of granulized inorganic or metal materials playing the roles such as conductivity of arc length, formation of slag coatings and melt deoxygenation in the submerged welding. They also play the role of electrode cover in the manual process. The physical appearance of the welding flux is dependent to the elements present within the material. In addition, the size and dimensions of the fluxes are very important.
There is no general welding flux that can be used for every metals and gaps, and thus, the selection of the welding flux must be done according to the application. The maximum ampere consumption is achieved during the application of welding flux in the process.
Welding fluxes are found in three types: acidic, neutral and basic. Another classification is two types of pre-melt and agglomerated welding fluxes.
Pre-melt welding fluxes are obtained through melting of grinded raw materials. The melted product is then cooled, grinded and screened in order to achieve desired dimensions. The strength and density of these pellets are high and this prevents their pulverization during handling and storage. Pre-melted welding fluxes are resistant against oxygen and hydrogen diffusion and hydrogen cracking and subsequently can be used for open areas, unroofed structures and humid environments.
On the other hand, agglomerated welding fluxes are produced by mixing of fully grinded raw materials. Adhesives such as sodium and potassium silicates are added to form the paste and then pyrolyzed at 600-800 degrees centigrade. Since this temperature range is below the reaction temperature of the materials, anti-oxygen and ferroalloys can be used. Although the production cost of agglomerated welding fluxes are high, the ultimate usage of these fluxes in the process is low due to their low volumetric density.
This product is in the type of agglomerated fluoride bases and can be used with both AC and DC electrical currents. Adsorption of manganese and silisium in the welding metal results in its toughness to happen at lower temperatures.
This product is suitable for welding of metals with unlimited thickness, building structures, high pressure tanks, power plants, rollers, and in transportation industry.
The pelleting of this product is according to EN and AWS.A5 standards.
The product is packed in 3-layered 25 Kg PE bags.
Pre-drying at 300-350 oC must be applied in the case of moisture adsorption.
This product is in the type of agglomerated fluoride bases and can be used with both AC and DC electrical currents. Since this flux is neutral towards silisium and manganese adsorption, it can be used with welding wires containing high content of silisium and manganese. Also, the metallurgical behavior of flux results in increased toughness of the welding metal at low temperatures.
The pelleting of this product is according to EN and AWS.A5 standards.
The product is packed in 3-layered 25 Kg PE bags.
Pre-drying at 300-350 oC must be applied in the case of moisture adsorption.
This product is in the type of agglomerated fluoride bases and can be used with both AC and DC electrical currents. Since this flux is neutral towards silisium and manganese adsorption, it can be used with welding wires containing high content of silisium and manganese and this makes them appropriate for welding of multi-layered thick sheets. The required voltage for this flux is minimum and can be used for thin gaps due to the smooth welding surface.
This product can be used for steels resistant to creep with unlimited thickness, petrochemical industry, high pressures tanks, electrical power plants and shipbuilding industry.
The pelleting of this product is according to EN and AWS.A5 standards.
The product is packed in 3-layered 25 Kg PE bags.
Pre-drying at 300-350 oC must be applied in the case of moisture adsorption.
This product is in the type of agglomerated rutile aluminate. The adsorption of silisium and manganese by the welding metal enables high speed welding. Another attractive feature of this flux is its beautiful appearance, smooth powder and easy detachment of slag. In addition, selection of appropriate welding wires results in increased toughness of welding metal down to -20 degree C.
The metallurgical properties of this product results in easy detachment of slag and suitable for corner welding.
This product is appropriate for applications such as high pressure tanks, piping lines, shipbuilding industry as well as building structures.
The pelleting of this product is according to EN and AWS.A5 standards.
The product is packed in 3-layered 25 Kg PE bags.
Pre-drying at 300-350 oC must be applied in the case of moisture adsorption.
This product is in the type of agglomerated base aluminate and can be used with both AC and DC electrical currents. Based on its metallurgical characteristics, this flux can be used with various types of welding wires and for all metals. easy detachment of slag and adsorption of low amounts of silisium and manganese in the welding metal enables welding of thick metals. high speed welding high toughness of welding metal and low temperatures and beautiful appearance of the welding place are among the other attractive features of this flux.
This product is appropriate for welding of wind turbine blades with thickness of more than 50 mm. other applications of this flux is in shipbuilding industry, steel pipes with surface strength of greater than X70, steels resistant to environmental conditions like bridges and high pressure tanks.
The pelleting of this product is according to EN and AWS.A5 standards.
The product is packed in 3-layered 25 Kg PE bags.
Pre-drying at 300-350 oC must be applied in the case of moisture adsorption.
This product is in the type of agglomerated base aluminate and can be used with both AC and DC electrical currents. Since this flux can convey large electrical currents, as well as high rates of deposition, it can be used for welding of multi-layered thick films. The resultant welding metal is highly tough at temperatures down to -50 C.
The high rates of slag deposition and smooth powder of the welding results in formation of no cuts at the corners of welding at high speed welding. This product can be used for welding of wind turbines, high pressure tanks, small-bead steels, metal pipes, and general steel structures.
The pelleting of this product is according to EN and AWS.A5 standards.
The product is packed in 3-layered 25 Kg PE bags.
Pre-drying at 300-350 oC must be applied in the case of moisture adsorption.
This product is in the type of agglomerated base aluminate and can be used with both AC and DC electrical currents. Since low amount of silisium and manganese is adsorbed in the welding, the flux can be used for welding of low containing silisium and manganese metals.
The high rates of slag deposition and smooth powder of the welding results in formation of no cuts at the corners of welding at high speed welding. This product can be used for welding of wind turbines, high pressure tanks, small-bead steels, metal pipes, and general steel structures.
The pelleting of this product is according to EN and AWS.A5 standards.
The product is packed in 3-layered 25 Kg PE bags.
Pre-drying at 300-350 oC must be applied in the case of moisture adsorption.
This product is in the type of agglomerated calcium silicate and can be used with both AC and DC electrical currents. This product s appropriate for welding of twin-wires and multi-wires at high speeds.
In welding using this flux, low amount of silisium and manganese is added into the welding metal. Therefore, this flux can be used along with medium-manganese containing welding wires. In order to increase the toughness, welding wires containing Mo must be used.
The pelleting of this product is according to EN and AWS.A5 standards.
The product is packed in 3-layered 25 Kg PE bags.
Pre-drying at 300-350 oC must be applied in the case of moisture adsorption.
This product is in the type of agglomerated calcium silicate and can be used with both AC and DC electrical currents. This product s appropriate for welding of twin-wires and multi-wires at high speeds. The special characteristics of this flux is adsorption of low amount of humidity.
In welding using this flux, some amount of manganese is adsorbed, therefore, this flux can be used along with medium-manganese containing welding wires. In order to increase the toughness, welding wires containing Mo must be used.
The pelleting of this product is according to EN and AWS.A5 standards.
The product is packed in 3-layered 25 Kg PE bags.
Pre-drying at 300-350 oC must be applied in the case of moisture adsorption.