Welding powder

The metal powder provides the required material in order to perform the exothermic welding of the conductors

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Each type of weld requires a specific welding powder cardtridge, make sure you have the right mold, use our selection guide
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Powder weight (gr.)
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The exothermic welding is a self-sufficient process to achieve high quality electrical connections between copper, copper alloys or steel conductors. The process implies the use of a graphite mold allowing the molten metal present inside to come in contact with the conductors present and to weld them in a definitive way.

The exothermic metal powder cartridges are calibrated in weight according to the weld to be carried out and contain two types of powder:

  1. The metal powder is available under the colored cover and consists of a mixture of copper and aluminum oxide and serves as a raw material to fuse with the conductors to be welded
  2. The ignition powder is available under the black cover and is used to start the fusion process, when igniting the exothermic welding process

► How to choose all the required exothermic welding materials ?

To choose all of the required materials, follow the steps below:

  1. Select the graphite mold
  2. Select the handle clamp
  3. Select the metal powder
  4. Select the ignition method
  5. Select the accessories and safety equipments

► What if the welding configuration is not available on MALTEP website ?

MALTEP also manufactures graphite molds for the realization of particular welding configuration.

Do not hesitate to consult us for any particular request with the following welding inputs:

• The configuration  of the weld: tee, parallel, etc..
• The nature of the conductors to be welded: cable, round, rebar, etc. (note that aluminium is not suitable with exothermic welding)
• The cross section, diameter, conductors dimensions
• The number of welds to be done for each type of weld

► Wants to know more ?

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Discover our exothermic welding overview
KW45

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