The composition of the snap fastener
2022-08-16
There are many kinds of railway equipment.The elastomer coupler is composed of screw nails,flat washers,elastomer,gauge baffle,underrail pad and embedded casing.In addition,it also includes an elevated pad for rail height adjustment. Spring Clip and underrail pads:can be divided into type W2 strips for general use and type X3 strips for possible use on Bridges.In addition,strips as spare parts type I coupler Type A strips may be used for rail joints.The underrail pad can be divided into two types:Rubber Pad RP5 for general sections and composite pad CRP5 for Bridges.When it is necessary to reduce the line resistance on the bridge,E Type Elastic Rail Clip can be used with composite pad,and the longitudinal resistance of rail of single group coupler is 4KN. Gauge baffles:Gauge baffles G5 are divided into seven types,and No.4 and No.6 are used for standard gauge. Embedded casing:the component is embedded in the sleeper in advance,the embedment accuracy should meet the requirements,and the embedded casing top surface should be flush with the sleeper bearing rail surface.After embedded casing is laid,plastic cover should be covered to prevent rain and mud from entering. Raising pad:the raising pad TD5 is divided into four specifications:1 mm,2 mm,5mm and 8 mm according to the thickness,and is placed between the backing plate under the rail and the sleeper bearing rail surface.
