Prestressed concrete rail sleeper production process using long line pedestal method

A production process and prestressing technology, used in manufacturing tools, ceramic molding machines, etc., can solve the problems of unstable mechanical properties of sleepers, affecting sleeper quality, and high comprehensive energy consumption, reducing procurement costs, reducing investment, and one-time use. The effect of less investment

Inactive Publication Date: 2004-05-05
王庆昌 +2
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Problems solved by technology

[0002] At present, the production of prestressed concrete sleepers adopts the assembly line production process of the unit. During the production process, the machinery and the sleeper mold must be frequently moved and operated, and the reinforcement (steel strand) must be straightened, cut, and pierced. The overall energy consumption is relatively high; when prestressing is applied, each set of steel molds is stretched separately, not only the process is complicated, but also the stress error between each prestressing tendon is caused by the cutting error of the reinforcement length and the size error of the heading head, and the sleeper Unstable mechanical properties affect sleeper quality

Method used

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  • Prestressed concrete rail sleeper production process using long line pedestal method
  • Prestressed concrete rail sleeper production process using long line pedestal method

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[0031] specific implementation plan

[0032] As shown in the accompanying drawings, the production process of the present invention, firstly, the sleeper steel model is in place, the 4 × 1 steel model is vertically arranged on the pedestal bracket, and the steel molds are connected by hinges; enter the process 2, install the lower baffle support On the hinged connection positioning block between the steel molds; enter process 3, spray the spacer evenly in the model shell; enter the reinforcement mold entry process 4, penetrate the prestressed reinforcement into the positioning plate and arrange it into the mold; enter process 5, Install the middle baffle, and insert the reinforcing bars into the baffle according to the order of the reinforcement position; enter the process 6 to install the upper baffle; the prestressed tensioning process 7 is to use a 10t jack to tension the prestressed reinforcement one by one, And anchored on the anchor plate as a whole, the anchor plate is ...

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Abstract

A technology for producing prestressed concrete sleepers by long table method includes sequentially arranging steel moulds, installing bottom stopper, coating the isolating agent, locating prestressed bars, installing central and top stoppers, stretching prestressed bars, anchoring, installing hoops, spiral bars and preburied parts, stirring and pouring concrete, vibrating, removing stoppers, cutting the auxiliary bars, and demoulding. Its advantages are low energy consumption and cost, and high quality of product.

Description

technical field [0001] The invention is a production process for producing prestressed concrete sleepers by using a long-line pedestal method, and stretching reinforcements composed of prestressed steel strands or steel bars one by one to improve the quality of the sleepers, and belongs to the technical field of prestressed concrete sleeper production. Background technique [0002] At present, the production of prestressed concrete sleepers adopts the assembly line production process of the unit. During the production process, the machinery and the sleeper mold must be frequently moved and operated, and the reinforcement (steel strand) must be straightened, cut, and pierced. The overall energy consumption is relatively high; when prestressing is applied, each set of steel molds is stretched separately, not only the process is complicated, but also the stress error between each prestressing tendon is caused by the cutting error of the reinforcement length and the size error of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B28B1/08B28B11/24B28B23/06
Inventor 王庆昌张胜学虞德顺张继仁沈长耀王刚孙绍峰孙晓春
Owner 王庆昌
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