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Production technology of corner iron support used for external heating or external insulation

A corner support and production process technology, applied in metal processing equipment, manufacturing tools, casting and molding equipment, etc., can solve problems such as poor appearance quality and unstable quality, achieve difficult casting, ensure product quality, and solve group problems. effect on quality

Active Publication Date: 2014-02-12
XI AN RAILWAY TRANSPORTATION EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The processing of the existing corner support irons is generally made of angle steel multiple times. During the production process, problems such as unstable quality, poor appearance quality, and manual removal of excess material at the inner bend of the angle steel need to be repaired.

Method used

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  • Production technology of corner iron support used for external heating or external insulation

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Embodiment Construction

[0026] see figure 1 , the present invention proposes a production process of corner support iron for external heating or external heat preservation, the production process comprises the following steps:

[0027] 1) Determine the precision standard for corner support iron manufacturing;

[0028] 2) Carry out the technical design of casting corner support iron; in the process design, specifically, design the pouring riser, determine the machining allowance, determine the molding method, pouring temperature and heat treatment method; specifically adopt the bottom of the corner support iron to face down, and at the same time The method of placing the riser on the top surface of the groove on both sides;

[0029] 3) Using the investment casting method to manufacture the investment mold set of the corner support iron;

[0030] The specific steps are:

[0031] 3.1) Apply paint evenly on the investment mold; the paint binder is ethyl silicate-silica sol; the paint is evenly coated ...

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Abstract

The invention provides a production technology of a corner iron support used for external heating or external insulation. The technology comprises following steps: 1) determining a precision standard for manufacturing the corner iron support; 2) designing a casting technology for the corner iron support; 3) manufacturing a fusion mold group of the corner iron support by a fusion casting method; and 4) manufacturing the corner iron support by the fusion casting method, and machining connecting parts of a corner part with other fittings through a milling machine. The production technology provided by the invention changes the corner part into a casting piece, and adopts a casting-machining technology. The quality is stable.

Description

technical field [0001] The invention relates to the field of externally heated or externally insulated railway tank cars, in particular to a production process of corner support irons for externally heated or externally insulated. Background technique [0002] Externally heated or externally insulated railway tank car products are an important part of 70t-class railway tank car products. The loading medium involves concentrated sulfuric acid, liquid caustic soda, edible oil, glacial acetic acid, etc., and is also the main production product. Since the tank body of the 70t tank car product adopts a "V" structure with an inclined bottom, its external heating or external thermal insulation corner parts are three-dimensional structures. The processing of the existing corner support irons generally uses angle steel for multiple forming. During the production process, problems such as unstable quality, poor appearance quality, and manual removal of excess material at the inner ben...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C9/04
Inventor 付丽伟赵汝叶范文革张舒李向东韩志坚
Owner XI AN RAILWAY TRANSPORTATION EQUIP