Rivet Welting Surface Plate’s Applications:

 The surface use scratching technology and it can be used in any kinds of testing work and cameasure parts precisely .At the same time ,it can be used to test and measure benchmark, test parts' size precision and deviation and scribe lines.The feature s of it are high precision and wear-resistant.

Rivet Welting Surface Plate’s Material:Made from closed grained cast iron of HT 200-300 .

        Hardness between 170-240 BHN

        Two times manual processing (Artificial annealing 600 ℃-700℃ and natural aging about two or three years)make the precision more accurate.

 

Rivet Welting Surface Plate’s Precision: Generally as per JB/T7974-99.Flatness accuracy as per Gr0 ,Gr1,Gr2,Gr3 and smooth planing of JB/T7974-99