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Process for producing pre-tensioned and pre-stressed concrete pile mold

A technology of concrete pile and production process, which is applied in the field of building material machinery manufacturing, can solve the problems of unsatisfactory steel mold product quality, poor straightness of pipe piles or square piles, and uneven joints, so as to save welding materials and Reduced grinding wheel consumption and manual workload, good straightness and good longitudinal stiffness

Active Publication Date: 2013-11-13
JIANGSU HAI HENG BUILDING MATERIAL MACHINERY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0030] 1. The quality of steel mold products is not satisfactory:
[0031] The entire steel mold is usually connected by more than N (N≥2) single-section steel molds. There are joints between each single-section steel mold, and the number of joints is N-1. Since each steel mold is processed in sections , there are processing errors in turning, calibration, and assembly, and the accumulation of errors often leads to uneven joints at the joints of the final product, poor straightness of the product, and poor straightness of the produced pipe piles or square piles.
[0032] 2. The consumption of materials is large, especially the consumption of grinding wheels and welding materials
[0033] 3. The process is complex and the workload is large

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0071] Embodiment 1, is used for the production technology of the pretensioning method prestressed concrete pipe pile mold of producing concrete pipe pile, comprises the following steps:

[0072] 1. Prepare the following components:

[0073] Tongue plate: the strip-shaped hot-rolled profile is cold-drawn directly to the precise size through cold-drawing equipment and molds, and after calibration, the bolt eyes are closed, and the calibration and alignment are ready for use;

[0074] Pipe wall: Cut the hot-rolled plate into a rectangle of the required size by a shearing machine, reserve the processing amount, process the excess part of the joint end face by metal cutting, and then press it into the required semicircular groove by a press for standby;

[0075] Longitudinal bars: Cut the hot-rolled plate into strips of the required size, or directly roll them into profiles that meet the size, correct and straighten them for later use;

[0076] Ring reinforcement: the strip plate...

Embodiment 2

[0096] Embodiment 2, be used for the production technology of the pretensioning method prestressed concrete square pile mold of producing concrete square pile, comprise the following steps:

[0097] 1. Prepare the following components:

[0098] Tongue plate: the strip-shaped hot-rolled profile is cold-drawn directly to the precise size through cold-drawing equipment and molds, and after calibration, the bolt eyes are closed, and the calibration and alignment are ready for use;

[0099] Pipe wall: Cut the hot-rolled plate into a rectangle of the required size by a shearing machine, reserve the processing amount, and then press it into an isosceles right-angled triangle groove by a press, and then cut it to the size required by the process by a planer, and reserve it;

[0100] Longitudinal bars: directly roll the hot-rolled plate into a profile that meets the size, and make it ready after calibration and straightening;

[0101] Ring reinforcement: the middle plate is directly c...

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PUM

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Abstract

The invention relates to a process for producing a pre-tensioned and pre-stressed concrete pile mold and is applicable to production of pre-stressed and pre-tensioned concrete tubular piles. The process comprises the following steps of: firstly, preparing components, namely a matchboard, a tubular wall, longitudinal bars, annular bars, links, bolts, an end plate, an end connecting plate and running wheels; secondly, sequentially connecting all components, performing spot welding on all components into a whole, and thus obtaining half steel molds; and finally, combining the molds and performing finish machining. The process has the advantages that: the produced whole steel mold is small in cavity size error and good in straightness; the produced tubular pile or square pile is good in straightness; the smoothness of appearance is good, the whole longitudinal rigidity is good, and annular strength is improved; the whole coaxiality is ensured; and steel, processes and materials are saved, and the quality of produced products is higher.

Description

technical field [0001] The invention relates to the technical field of building material machinery manufacturing, in particular to a production process for pretensioned prestressed concrete pile molds for manufacturing prestressed pretensioned concrete pipe piles and square piles for construction. Background technique [0002] Prestressed centrifugal concrete pipe piles and square piles for construction use the pretensioned prestressed concrete pipe pile steel mold and square pile steel mold to rotate at high speed on the centrifuge, so that the pretensioned prestressed concrete pipe pile steel mold or square pile steel mold The concrete installed in the mold moves centrifugally at high speed with the mold to produce prestressed concrete pipe piles or square piles. Because it is convenient for large-scale industrial production and the produced prestressed concrete piles have good compactness, high strength and strong bearing capacity, they have been More and more alternative...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P15/24
Inventor 陈益民王玉文赵声江
Owner JIANGSU HAI HENG BUILDING MATERIAL MACHINERY CO LTD