Welding type rail fixed devices
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Welding type rail fixed devices
Other Names:
Welding type rail fixed devices:also called welded rail pressure device, welded rail fixtures, steel girder rail pressure control, welded plate, no matter how its role is only one call is pressed and fixed rail. Beam welded to the beam typically sometimes
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Product Detail:
Product Introduction
Product Detail:
Welding type rail fixed devices Product Introduction
Welding type rail fixed devices:also called welded rail pressure device, welded rail fixtures, steel girder rail pressure control, welded plate, no matter how its role is only one call is pressed and fixed rail. Beam welded to the beam typically sometimes also used in the steel plate embedded in the concrete. Pressure rail to prevail sets, each set includes: base, cover, wear Shaw, bolt, spring washer.
Welding type rail fixed devices standard:
Rail fixed devices applies rail model TG24 TG38 TG43 TG50 QU70 QU80 QU100 QU120 welded rail pressure rail track is mainly used for girders fixed plant. Materials and fixtures making criteria:
(1) on the cover, base plate, the adjustment plate is ZG270-500. Material in line with the provisions of 5676-85. Using the lost wax casting. II grade-level content, size deviation conform JZ67-2II-level precision requirements.
(2)bolts, nuts Q235BF steel machining parts, mechanical properties and chemical composition GB700-88 requirements, surface accuracy 12.5 bolts, nuts meet the requirements of GB 6170-86.
(3)flat washers as Q235AF steel, making the request complies GB97.1-85 requirements.
(4)spring washer is 65Mn or 60si2Mn steel materials meet the requirements of 1222-84, making the request complies GB93-87 requirements.
Welding type rail fixed devices Use of Material and Requirements
(1)steel, plywood and steel using steel Q235 (the 3rd steel), its technical conditions should be in line with national standards.
(2) hex head bolts and nuts, spring washers washers shall comply with national standards.
(3) plate using carbon steel castings (ZG230-450) or malleable iron (KTZ450-06), its mechanical properties should fit the table.
(4) elastic pad made of composite rubber pads, rubber and rubber tongue pressure oil rubber pad use, its performance should be consistent with GB5574-85 in the 3807 standard, the mechanical properties of the rubber pad shall meet Table 2 requirements.
Welding type rail fixed devices Installation Requirements
Complete rail joints after laying a good composite rubber plate positioned on the track adjustment and bolts, clips and other parts in place, so that the bottom flange plate tight towel rail, then install plate, spring washers, tighten the nut to the rubber platen tongue compression is about 2-3mm.
Rail mounting tolerance requirements:
Centerline of the track position deviation ≤ 5mm;
Track top elevation difference ≤ 5mm;
The distance between the Plant transverse same position relative to the top surface of two tracks elevation difference;
The distance between the two rails centerline deviation ≤ 5mm;;
Pillars ≤ 10mm Other office ≤ 15mm;
Plant expansion joints using four-hole plate rail links. Steel tracks 4kg / m, 38kg / m, 43 / m, 50kg / m expansion joints can be flush joints, QU70, QU80, QU100, QU120 expansion joints with 45 oblique joints, slit width are 10mm.two rails centerline deviation ≤ 5mm.
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