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

A technology for concrete piles and production processes, applied in the field of building materials machinery manufacturing, can solve the problems of unsatisfactory quality of steel mold products, poor straightness of pipe piles or square piles, and unequal heights at joints, so as to save welding materials and reduce costs. Grinding wheel consumption and manual workload, good straightness, good longitudinal stiffness

Active Publication Date: 2012-01-04
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,

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0071] Embodiment 1, the production process of the pre-tensioned pre-stressed concrete pipe pile mold for the production of concrete pipe piles, includes the following steps:

[0072] 1. Prepare the following components:

[0073] Matching plate: the strip-shaped hot-rolled section is cold-drawn directly to the fine size by the cold-drawing equipment and the die. After correction, the bolt eye is closed again, and the correction is straightened for use;

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

[0075] Longitudinal ribs: Cut the hot-rolled sheet into strips of the required size, or directly roll it into a profile that meets the size, and use it after correction and straightening;

[0076] Ring rib: the strip-shaped plate is bent into a shape by a p...

Example Embodiment

[0096] Embodiment 2, the production process of the pre-tensioned pre-stressed concrete square pile mold for producing concrete square piles, includes the following steps:

[0097] 1. Prepare the following components:

[0098] Matching plate: the strip of hot-rolled profile is cold drawn directly to the fine size by the cold drawing equipment and die, after correction, the bolt eye is closed again, and the correction is straightened for use;

[0099] Pipe wall: Cut the hot-rolled sheet 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 process it to the size required by the process by metal cutting with a planer for use;

[0100] Longitudinal ribs: directly roll the hot-rolled sheet into a profile that meets the size, and use it after correction and straightening;

[0101] Ring rib: Cut the middle plate directly into finished products according to the process siz...

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