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Productive technology of high-precision and high-rigidity prestressed centrifugal steel mould

A production process and high rigidity technology, applied in the direction of the mold, can solve the problems of easy deformation and bending, shorten the service life of the steel mold, increase the cost of use, etc., achieve the effect of eliminating deflection and deformation, improving the rigidity of the steel mold, and protecting the cylinder

Inactive Publication Date: 2010-06-30
吕传水
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Problems solved by technology

In actual application, it is found that the rigidity is low, and it is easy to deform and bend, especially the single-piece steel mold after disengagement, which is more likely to be damaged. This not only hinders the normal use of the steel mold, increases the cost of use, but also affects the quality of the product and shortens the production time. Steel mold service life

Method used

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Embodiment Construction

[0028] In order to clearly illustrate the technical features of this solution, the present invention will be described in detail below through specific implementation modes.

[0029] A production process of high-precision and high-rigidity prestressed centrifugal steel mold, comprising the following steps:

[0030] (1), cutting according to the standard requirements;

[0031] (2) Impact strengthening of longitudinal ribs:

[0032] 1) Place the longitudinal rib plate in the U-shaped mold at the center of the track of the impact machine and fix it, so that the upper top surface of the longitudinal rib plate rushes up;

[0033] 2) Start the impact machine, hit the top surface of the longitudinal reinforcement plate with a distance of 5-10mm, and impact force 8-10MPa for a long time;

[0034] 3), repeat the above steps 1), 2), and strengthen the impact on the top surface of all longitudinal ribs;

[0035] (3) Assemble the processed parts into finished steel molds according to t...

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Abstract

The invention relates to a productive technology of a high-precision and high-rigidity prestressed centrifugal steel mould, comprising the following procedures: the material is fed according to standard requirements; the upper top surface of a longitudinal rib plate is impacted by an impactor strongly; processed parts are assembled into a steel mould finished product according to assembly standard requirements; the steel mould straightness of the assembled steel mould is measured by a way of two-ends support-moment runout; being near the protruding-direction position of the bent position of the measured steel mould, a welding line between the longitudinal rib plate and a steel mould cylinder, and a welding line between the cross position and the steel mould cylinder are repeatedly welded and straightened until the steel mould reaches the requirements, wherein the cross position is between the longitudinal rib plate and a toroidal rib plate. The steel mould produced by the productive technology reduces the plastic deformation of the steel mould finished product, improves the precision and the rigidity of the steel mould and prolongs the service life of the steel mould.

Description

Technical field: [0001] The invention relates to a production process of equipment for manufacturing concrete tubular products, in particular to a production process of high-precision and high-rigidity prestressed centrifugal steel mold. Background technique: [0002] The products produced by the centrifugal steel mold (mainly referring to the pole steel mold, pipe pile steel mold and other slender steel molds) are reinforced concrete products. During the production process, it is necessary to repeat mold opening and closing, lifting, heating, cooling, and high-speed operation, and the environmental conditions are relatively harsh. Therefore, steel molds have higher requirements for rigidity and precision. [0003] Because there is no strengthening treatment process in the manufacturing process of this type of steel mold, the finished steel mold maintains the mechanical properties of the original steel, which can be called quasi-rigid steel mold. In actual application, it ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B28B21/82
Inventor 吕传水
Owner 吕传水
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