A hot-melt bonded railway high-speed turnout composite sliding bed platform
A sliding bed, composite technology, applied in the direction of roads, tracks, buildings, etc., can solve the problems of easy grinding grooves on the load-bearing tongue rails, large switch switching resistance, poor corrosion resistance and easy rusting, etc., to achieve a good environment Adaptability, good adhesion to the point rail, and the effect of not being easy to rust
Active Publication Date: 2017-11-10
SHENYANG DINGRAN NEW MATERIAL CO LTD
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Problems solved by technology
[0003] 1. The strength performance is low, the wear resistance is poor, and the working surface of the bearing point rail is prone to grinding grooves;
[0004] 2. The friction coefficient is relatively high at 0.23-0.30, and the friction coefficient further increases after corrosion, resulting in a large turnout switching resistance;
[0006] 4. It needs to be oiled and polished frequently;
[0007] 5. The maintenance time is long, the workload is heavy, and the maintenance cost is high;
[0008] 6. There are hidden dangers of personal safety accidents
Method used
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[0036] The present invention is specifically described below in conjunction with accompanying drawing, as figure 1 As shown, the sliding bed platform is arranged on the base plate 5, and the tip rail 2 or the core rail 6 is arranged on the sliding bed platform. The sliding bed platform is composed of upper and lower two-layer structures, and the lower layer is The base material 4, the upper layer is the cladding material 3.
[0037] The composition of cladding material is: C0.05-0.06%; Cr13.8-14.2%; Si0.42-0.45%; Mo0.68-0.73; Mn1.0-1.1%, the balance is Fe; The process includes: the base material and cladding material are smelted at 1500-1600 degrees Celsius to make molten steel, then pour the cladding material into the mold, wait for the cladding material to cool to 1100 degrees Celsius, then pour the base material into the mold, cool to room temperature, and then heat to 900 degrees Celsius, forged.
[0038] The total thickness of the sliding bed platen is ≥ 40mm, and the t...
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The invention discloses a heat-melting bonding composite type sliding bed platform plate of a railway high-speed turnout. The heat-melting bonding composite type sliding bed platform plate is arranged on a bottom plate and is provided with a point rail or a core rail, the sliding bed platform plate is formed by two layers of structures of an upper layer and a lower layer in a combining way, the lower layer is base material, and the upper layer is a covering material; the base material is a Q235 steel plate. The technological process comprises the steps of smelting the base material and the covering material into molten steel under 1500-1600 DEG C, then pouring the covering material into a die, pouring the base material into the die while the covering material is cooled to be 1100 DEG C, cooling the base material and the covering material to room temperature, heating the base material and the covering material to 900 DEG C, and forging and forming. The heat-melting bonding composite type sliding bed platform plate of the railway high-speed turnout, disclosed by the invention, has the advantages that the performance is good, the cost-performance ratio is high, the toughness is good, and the comprehensive technical performance is good.
Description
technical field [0001] The invention relates to the field of railway equipment, in particular to a high-speed railway turnout, and more specifically to a melting and casting physical compound sliding bed platen for a high-speed railway turnout. Background technique [0002] Sliding bed platform is an important part of railway high-speed turnout, and it is a safe platform for carrying switch point rails and high-speed trains. Sliding bed platform is directly related to the use and operation safety of high-speed turnouts and high-speed trains. At present, the design material of the high-speed turnout sliding bed platen is ZG230-45. The practical application of this kind of sliding bed platen has the following disadvantages: [0003] 1. The strength performance is low, the wear resistance is poor, and the working surface of the bearing point rail is prone to grinding grooves; [0004] 2. The friction coefficient is relatively high at 0.23-0.30, and the friction coefficient fur...
Claims
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IPC IPC(8): E01B7/02
CPCE01B7/02
Inventor 田原
Owner SHENYANG DINGRAN NEW MATERIAL CO LTD