The several points we need pay attention to when purchasing rivet Welding surface plates.
Rivet Welding surface plates are the basic working platform of rivet welding, when purchasing, what should we pay attention to? There are four aspects we need to follow:

1. The raw material and chemical constituents of rivet Welding surface plates. The carbon content must be about 3.16-3.30, it exists in graphite morphology. Except carbon, the raw material also should contain Si: 1.79-1.93, Mn: 0.89-1.04, S: 0.094-0.125, P: 0.120-0.170, etc.
2. Mechanical property: cast iron HT200-300, hardness of working surface is HB170-240, through twice treatment in order to get the precision stability and good wear resistance.
3. Specification from 1000x2000mm to 3000x8000mm (customized size is acceptable), there are hole and T-slot on their surface, the holes are used to clean the waste when welding; T-slots are used for fixing workpieces.
4. Appearance: There is not any rust, scratches, cracks as well as other defects which influence the use. There is not any sand inclusion, blow-hole, porosity and other foundry defects. Clean the sand, keep the surface flat and well painting.