Marine pneumatic valve type analysis of the research material

Marine pneumatic valve grinding tool material should have: fine uniform, good performance embedded in sand, good abrasion resistance, enough stiffness, deformation, grinding softer features of hardness. In this paper, the following research is usually used with materials. : cast iron with flake graphite, abrasion resistance and lubricity, cast iron, the intensity is high, but it also has low cost, the advantages of easy processing. Therefore, as abrasive grinding hard alloy cast iron, hardened steel, non-ferrous metal materials such as artifacts, also used sand grinding tools, embedded abrasive abrasive grinding and emery cloth folder. The material is cast iron and grey cast iron and nodular cast iron, high brightness? Total hardness of iron. Cast iron grinding tool can guarantee high quality, high efficiency grinding, common use. Low carbon steel, low carbon cast steel than the big iron ball, can adapt to grinding spindly cast iron as a rare research materials generally coarse, cone hole, thread and other areas, low carbon steel. Copper: copper toughness, wear resistance, allowance of pneumatic valve coarsely requirement for low surface roughness research, the role of the research field of low carbon ( But the cost is high, is seldom used in general. ） Aluminum: aluminum copper and other soft metal grinding fine copper soft. Lead, babbit: polishing grinding workpiece and mild steel or other soft materials. Glass, glass quality hard, grinding and polishing, grinding workpiece quenching steel, in particular, brittle. Asphalt, asphalt texture soft, used in glass, crystal, brittle materials such as Marine pneumatic valve grinding, polishing, but for hardened steel fine polishing. Asphalt adapted to the shape of the workpiece. Leather, wool felt, polyester fabrics: handle, used to grind the artifacts. Polyester fabric smooth uniform, in grinding tools, grinding, polishing the formation of the cushion effect. In order to save material, reduce the research tools, often dual-use research, in coated with abrasive, abrasive cloth or sandpaper can set off. Set up with emery cloth or sandpaper research, general carbon steel, cast iron.