Percussion wrench
Specifications / Features
Use of percussion wrench: percussion wrench for the oil, chemical industry, metallurgy, power generation, oil refining, shipbuilding, petrochemical and other industries, equipment and equipment, equipment and equipment maintenance, repair work, the necessary tools. Tap wrench into metric and inch two. The whole forging process is made of 45 middle carbon steel or 40Cr alloy steel. Percussion wrench to the manufacturing standard: GB/T4392-1995 is the most common style of the wrench, the product is the end of the tail end of the percussion, end with a fixed size of the opening, to screw the size of a certain size of the nut or bolt.Percussion wrench specifications: 17mm, 19mm, 22mm, 24mm, 27mm, 30mm, 32mm, 36mm, 41mm, 46mm, 50mm, 55mm, 60mm, 65mm,, 70mm, 75mm, 80mm,, 85mm.
Percussion wrench process: tap wrench molding after blue high temperature treatment, in the high content of sodium hydroxide and sodium nitrite solution, temperature of 140 degrees, the steel surface to generate a dense oxide (Fe2O3 and Fe3O4) and different steel will have different color, has nothing to do with the roughness; bluing film is not resistant to corrosion, so blue to dipping antirust oil treatment. Can also root customer requirements for other surface treatment.
