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Prestressed concrete cylinder pipe preparation method

A technology of concrete pipes and prestressed steel, applied in the direction of pipes, rigid pipes, pipeline protection, etc., can solve the problems of impact resistance, low load-bearing capacity, inconvenient operation, easy damage, etc., to achieve enhanced load-bearing capacity, cost savings, Simple operation effect

Inactive Publication Date: 2019-05-28
云南省楚雄恒基管道工业有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a prestressed steel cylinder concrete pipe preparation method to solve the problem of low impact resistance and low load-bearing capacity and easy damage in the production of concrete pipes in the current prestressed steel cylinder concrete pipe technology proposed in the above background technology , and at the same time, the problem of inconvenient operation when demoulding

Method used

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  • Prestressed concrete cylinder pipe preparation method
  • Prestressed concrete cylinder pipe preparation method
  • Prestressed concrete cylinder pipe preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A kind of preparation method of prestressed steel cylinder concrete pipe, such as figure 1 Shown, including socket production, steel cylinder production, hydrostatic test, electric welding repair, tube core forming, tube core maintenance, surface repair, tube core water curing, wire winding, spraying, appearance repair and finished product stacking, specific operation steps as follows:

[0039] S1: Place the coil plate with a thickness of 1.5mm as the raw material on the unwinding mechanism of the spiral welding machine, install the mandrel according to the required specifications, and make the steel cylinder;

[0040] S2: Cut the socket plate and socket plate to length, preliminarily roll the socket plate and socket plate on the rolling machine, and weld the joint seam;

[0041] S3: Lift the initially rounded socket ring to the pressure roller of the edging machine, and edge the socket;

[0042] S4: Assemble the rounded socket rings and socket rings on the socket ass...

Embodiment 2

[0052] As the second embodiment of the present invention, the concrete batching parameters are shown in the following table:

[0053]

[0054]

[0055] It is worth noting that the table in this embodiment is a reference table, and the actual use is produced according to the concrete mix ratio issued by the technical department.

Embodiment 3

[0057] As a third embodiment of the present invention, the process parameters of the die are shown in the following table:

[0058]

[0059] It is worth noting that the speed is measured by speed-regulating motor revolutions per minute, and the time is measured by minutes. The slow and medium speeds should be gradually increased within the range, and the interval between each increase is about 1 minute; the fast time can be based on the temperature, concrete slump The speed and rotation speed can be increased or decreased as appropriate; the fast rotation speed should be adjusted appropriately depending on the smoothness of the pipe mold operation to ensure safety.

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Abstract

The invention relates to the technical field of building materials, in particular to a prestressed concrete cylinder pipe preparation method. The method comprises the following operating steps including bell and spigot manufacturing; steel cylinder manufacturing; hydrostatic test performing; welding repair; pipe core forming; pipe core maintenance; surface mending; pipe core water curing; wire winding; guniting; appearance mending; and finished product stacking. According to the prestressed concrete cylinder pipe preparation method, the inner wall of a mould shell and the outer wall of a mouldinner core are coated with a concrete parting agent, the parting agent is high in hydrophobicity, oil film is thick, and the good double effects of good demoulding performance and expense saving areachieved; air can be isolated through an arranged outer epoxy resin coating layer and an inner epoxy resin coating layer, inside metal materials are protected, and meanwhile, the characteristics of compactness, water resistance, good leakage resistance and high strength are achieved; and through arranged reinforcing ribs, the concrete pipe surface bearing capability and impact strength are improved, and effective results are achieved by means of the lowest economic cost.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a method for preparing a prestressed steel cylinder concrete pipe. Background technique [0002] Prestressed steel tube concrete pipe refers to a water pipe made by winding a hoop prestressed steel wire on a high-strength concrete core with a steel cylinder, and then spraying a dense cement mortar protective layer on it. It is a composite pipe composed of thin steel plate, high-strength steel wire and concrete. It comprehensively exerts the tensile strength and easy sealing of steel and the compression and corrosion resistance of concrete. It has the characteristics of high sealing, high strength and high impermeability. Widely used It is widely used in long-distance water transmission lines, pressure inverted siphons, urban water supply projects, industrial pressurized water pipelines, sewer pipes in power plant circulating water projects, and pressure sewage main pip...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B28B7/38B28B15/00B28B17/00F16L9/08F16L57/02F16L58/10
Inventor 荣学良李天鹏丁志国肖阳周利军龙胜华伊久文唐仲伦
Owner 云南省楚雄恒基管道工业有限责任公司
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