Track platen material and requirements
Aug 28, 2022| Track platen material and requirements
1. Plane both sides of the surfacing welded pressure plate on the planer, and the planing amount is 0.5mm.
2. If the welding seam of the plug is cracked due to planing, and the rail pressing plate is wholesaled, it is necessary to dig and repair. That is, after the double-sided planing, each welded pressure plate is subjected to a steam pressure test one by one. If the rail pressure plate is found to have water droplets, the rail pressure plate should be marked. After the test steam is turned off, use an angle grinder to grind a long groove or a round groove at the welding seam emerging from the water polo, surfacing again, and then smooth it with a grinder. Scope of application of track pressure plate: It is suitable for industrial plants and open-air trestle bridges with reinforced concrete crane beams or prestressed concrete crane beams. The surface temperature of the composite rubber backing plate: ≤60℃ Seismic fortification intensity: ≤9 degrees Corrosion situation: workshop without corrosive gas. When there is erosion, measures should be taken according to 1.9.
Materials and requirements (1) Steel plate Q235 steel (steel No. 3) is used for plywood and section steel, and its technical conditions should comply with national standards. (2) Hexagon head bolts, nuts, spring washers, and washers should comply with national standards. (3) The pressing plate is made of carbon steel castings (ZG230-450) or malleable cast iron (KTZ450-06), and its mechanical properties should meet the requirements. (4) The elastic backing plate is made of composite rubber backing plate, and the rubber press tongue and rubber backing plate are made of oil-resistant rubber. Its performance should meet the 3807 standard in GB5574-85 <Industrial Vulcanized Rubber Sheet>, and the mechanical properties of the rubber backing plate should meet the requirements.