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Correcting method for roundness of casting and correcting tool adopting same

A correction method and casting technology, applied to forming tools, manufacturing tools, metal processing equipment, etc., can solve the problems of inability to control all parts, poor roundness correction effect of circular cylinder orthopedic support device, etc.

Pending Publication Date: 2018-01-23
洛阳乾中新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a method for correcting the roundness of castings, which solves the problem that the roundness correction effect of the existing circular cylinder orthopedic supporting device is poor, and for castings with strict size requirements, it is impossible to control all parts to meet the predetermined requirements The scope of the problem; the purpose of the present invention is also to provide a casting roundness correction tool

Method used

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  • Correcting method for roundness of casting and correcting tool adopting same
  • Correcting method for roundness of casting and correcting tool adopting same
  • Correcting method for roundness of casting and correcting tool adopting same

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Embodiment Construction

[0024] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0025] Embodiment 1 of the casting roundness correction tooling of the present invention, as Figure 2 to Figure 3 As shown, the roundness correction tooling includes a central steel pipe 8 with a diameter of 80cm, three cross positioning blocks 5 are arranged at intervals along the axial direction of the central steel pipe 8 on the central steel pipe 8, and the four directions of the cross positioning blocks 5 are A connection thread is provided, and the cross positioning block 5 is connected to the support pipe 1 through threads, and the cross positioning block 5 can rotate along the circumferential direction of the central rod. The support tube 1 located at both ends is provided with a pull block 6 for pulling inward the deformation part of the casting or a support block 4 for supporting the deformation part of the casting outward. The pull block 6 an...

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Abstract

The invention relates to a correcting method for the roundness of a casting and a correcting tool adopting the same. The correcting method for the roundness of the casting comprises the following steps that firstly, the roundness of the casting is measured, the deformation amount and deformation position of the casting are determined; secondly, the casting is preheated with the temperature being smaller than the aging temperature through a heating device; thirdly, the correcting tool for the roundness of the casting clamps the casting, the deformation part of the casting is adjusted to enablethe roundness of the casting to reach the required range; and fourthly, the casting and the correcting tool for the roundness of the casting are put into the heating device together and cooled to theindoor temperature along with the heating device. After the casting is subjected to low-temperature aging treatment, the deformation part of the casting is adjusted to enable the size of the casting to reach the predetermined required range, and the casting is cooled along with the heating device, so that the stress is dispersed, and the correcting effect of the roundness of the casting is good.

Description

technical field [0001] The invention relates to a method for correcting the roundness of castings and a correction tool using the method. Background technique [0002] The usual heat treatment method for aluminum alloy castings is T6 treatment, that is, solution treatment plus complete artificial aging treatment. Solution treatment is generally a heat treatment process in which the casting is heated to a high-temperature single-phase region and kept at a constant temperature, so that the excess phase is fully dissolved into the solid solution and then rapidly cooled to obtain a supersaturated solid solution. During the cooling process, due to the rapid cooling of the casting from high temperature to room temperature, the shrinkage of each part of the casting is inconsistent, which will generate a large internal stress, resulting in deformation of the casting, and the actual deformation often exceeds the required range. [0003] The notification number is CN204486509U, and t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D3/14B21D37/16
Inventor 范开春续冰冰王建华邓猛郭玉州
Owner 洛阳乾中新材料科技有限公司
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