1, on the planer, the welding pressure plate will be surfacing on both sides of the plane, the amount of planing is 0.5mm.

2, if the plug weld cracking due to planing, rail plate wholesale, then need to dig. That is, after the double-sided planing, steam pressure test will be carried out one by one on each welded platen. If the rail platen is found to have water leakage, the rail platen will be marked. After turning off the test steam, use the angular polishing machine to grind out long grooves or round grooves at the welding seam emerging from the water balloon, and then surfacing, and then use the polishing machine to grind out. Track pressure plate applicable scope: suitable for reinforced concrete crane beam or prestressed concrete crane beam industrial plant and open trestle, the scope of application is: plant column distance: 6.0m 12.0m 0m crane weight: 1t~125 soft hook crane composite rubber pad surface temperature: ≤60℃ seismic forcement intensity: ≤9 degrees corrosion: Plant without erosive gas. In case of erosion, measures shall be taken in accordance with Clause 1.9.

(1) Steel plate splint and section steel using Q235 steel (No. 3 steel), the technical conditions should be in line with the national standard provisions. (2) hexagon head bolt nut spring washer washer should meet the national standards. (3) The platens are made of carbon steel castings (ZG230-450) or malleable iron (KTZ450-06), whose mechanical properties should meet the requirements. (4) The elastic pad is made of composite rubber pad, and the rubber tongue and rubber pad are made of oil-resistant rubber, whose performance should meet the standard 3807 in GB5574-85 "Industrial vulcanized rubber plate", and the mechanical properties of the rubber pad should meet the requirements in Table 2.