The surface of the compound positioning bushing shall be smooth.The nylon outer sleeve shall not be delaminated and the surface shall be uniform in color and free of impurities,visible defects,pores,scorch marks,flashes or burrs.The surface of the rubber ...[继续阅读]

    A.1.1 Raw MaterialsThe gauge adjustment sheet shall be made of glass fiber reinforced polyamide 66,and its physical properties are shown in Table A.1.Table A.1 Physical Properties of Raw Material of Gauge Adjustment SheetS/NItemUnitIndex1Densityg/cm31.30-...[继续阅读]

    B.3.1 The mechanical properties of the steel bushing shall comply with GB/T 11352.B.3.2 The physical properties of the rubber gasket shall comply with Table B.1.Table B.1 Physical Properties of Rubber GasketS/NItemUnitIndex1Shore A hardnessDegree85～952Ten...[继续阅读]

    A.2.1 Test Methods for Raw MaterialThe test methods for the raw material of gauge adjustment sheet shall comply with Table A.2.Table A.2 Test Methods for Raw Material of Gauge Adjustment SheetS/NItemTest method1DensityGB/T 1033.12Melting pointGB/T 165823T...[继续阅读]

    This Standard specifies the design,manufacture,factory assembly,inspection methods,inspectionrules,as well as marking,packaging,quality certificates,storage and transportation of rail expansionjoints of passenger dedicated line.This Standard is applicable...[继续阅读]

    The assembled REJs in complete set shall comply with Table 8,and this table applies only to theREJ range where the stock rail is not lengthened.Table 8 Dimensional Tolerance and Requirements of Factory Assembled REJS/NItemTolerance and requirementsmmItemc...[继续阅读]

    9.1.1 A complete set of REJs shall be provided with obvious permanent marks,which shall includethe product name,drawing number,specification and type,ex-factory number and date,manufacturername or factory logo,etc.9.1.2 The initial expansion/contraction p...[继续阅读]

    The assembly position of REJ where the stock rail is at the critical point of expansion/contraction.Figure 1 Diagram of simple REJFigure 2 Diagram of symmetrical REJFigure 3 Cross Section of Stock Rail and Switch Rail(A-A Profile of Figure 1 and Figure 2)...[继续阅读]

    A rail expansion joint consists of a stock rail,switch rail,fastening system,sleepers and othercomponents,and it can greatly reduce the longitudinal interaction force between the bridge and theCWR track through relative longitudinal displacement between t...[继续阅读]

    5.1.1 The REJs shall be manufactured according to the design drawings approved in prescribedprocedures and the requirements of this standard.5.1.2 If not included in this standard or not indicated in the design drawings,the dimensionaldeviations of machin...[继续阅读]