Raw materials used in the welding consumables manufacturing process are into four major categories:
- Chemical powders
- Mineral powders
- Metal powders
- Feroalloy powders
WESPEC has comprehensive knowledge of the exact specifications, including :
1- Qualitative and Quantitative of Elements and Components in materials:
The raw materials used in the welding consumables are working in various fields.This is very important issue, because of the unique specifications required in the production of welding materials which are different from other fields. For instance, The permissible amount of phosphorus and sulfur in the weld metal is very significant, while in industries like paint and resin production this is not very serious.
The characteristics of Montmorillonite powder((Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2·nH2O)), which is made from mineral stone:
2-Grain Size of the Powder and Other Specification:
Another important parameter is the grain size of the powder.This feature is expressed in a grain size analysis table.
3-Other Specification of Raw Materials:
Other specifications of the powder, including physical properties like density and bulk density and also chemical properties like Humidity at 120°C and 1000 °C and LOI(loss of ignition) and Ash will describe in third table.
It is essential that the powders prepared for the production of welding consumables are compatible with the powder spec, which is on a sheet similar to the above format.for more information about the specifications of the raw materials used in this industry Click here.