Brazing cast iron radiator. When gray cast iron is heated to the molten state the carbon completely dissolves in the iron probably combining chemically with it. Heat the damaged portion of the radiator with the soldering iron and introduce the wire slowly trying not to drip solder into the radiator itself. Braze aluminum welding basics the process of brazing refers to the use of gas generated heat 800 degrees f and an iron free filler such as aluminum to join to different metals. This occurs because cast irons due to their high carbon content are not easily weldable.
Brazing cast iron manifold white cast iron. Cast iron brazing demo wood stove door. Braze welding is a common method for joining cast iron parts due to the minimal impact on the base metal itself. Equivalent to esabs brazotectic flux.
Cast iron is particularly made of an artificial alloy of iron silicon and carbon. Saves you time repairs are fast and simple brazing aluminum with our hts 2000 or cast iron with our hts 528 brazing rods. If this molten metal is cooled quickly the two elements remain in the combined state and white cast iron is formed. You can easily repair corroded or oil impregnated areas that can be next to impossible to fix using welding machines with aluminum welding rods or other brazing products.
Because of the lower melting point of the filler compared to the cast iron the filler does not dilute with the cast iron but adheres to the surface. Use a high wattage soldering iron and very thick soldering wire. The fundamental usage of cast iron is to make water pipes transmission housing machine tool casting stove castings pistons engine. Super flux brz powder.
There are times that cast iron radiators need to be taken apart for repair transportation or reduction in size. Demonstration brazing on a cast iron wood stove door with vulcan 320 brazing. We will take a look at splitting the radiator apart after removing the threaded rod. A welding rod provides the filler that adheres to the cast iron surface.
Brazing cast iron is a simpler joining method than welding. However these are special problems that can be taken care of. Heat the gun thoroughly so that the solder melts well and bonds with the surface of the radiator. The total number of contents range between 17 to 45 percent.
Wetting is essential to generate the joint metallurgical bond. For brazing or fusion welding various ferrous and non ferrous metals and alloys like cast iron steels brass etc using cu zn brass filler metals.