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Manufacturing method of antifreezing well ring

A manufacturing method and well ring technology, applied in hydraulic engineering, artificial islands, underwater structures, etc., can solve the problems of manhole cover broken, excessive force, not easy to smash, etc., and achieve the effect of avoiding shortening of service life.

Inactive Publication Date: 2017-03-15
四川邑诚科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in winter, especially in areas with relatively cold weather, the joint between the manhole cover and the well ring is prone to freeze in snowy weather. When opening the manhole cover, if the ice layer is thick, the ice layer covered on the manhole cover is thicker and is not easy to smash, but if you use too much force, it may cause the whole manhole cover to break

Method used

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Experimental program
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Embodiment Construction

[0019] The present invention will be further described below in conjunction with specific embodiments.

[0020] A method of manufacturing an antifreeze well ring, characterized in that it comprises the following steps:

[0021] Material selection: use powdered iron powder as the main material, add 1 / 3 of the 304 stainless steel with a particle size of 110-150 mesh as the blank, and place it in the mold of the press;

[0022] Pressing treatment: open the press, and press the iron powder and stainless steel materials in the mold into the manhole cover blank;

[0023] Sintering treatment: The manhole cover blank obtained after the pressing treatment is preheated at 800°C~1000°C for 30 minutes, then heated to 1400°C~1450°C, sintered for more than one hour, and finally slowly cooled to room temperature.

[0024] Put into the inner ring groove: After the sintering is completed, select the ring pipe as the circumference of the sintered manhole cover, and lay carbon fiber heating wir...

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Abstract

The invention discloses a manufacturing method of an antifreezing well ring. The manufacturing method comprises the steps of material sorting, compression treatment, sintering treatment, inner ring imbedding, polishing, well ring manufacturing, wear-resisting coating spraying and the like. According to the manufacturing method of the antifreezing well ring, process technic is reliable, antifreezing treatment of the well ring is realized, and thus overall structure of the well ring is more reliable.

Description

technical field [0001] The invention relates to the field of auxiliary equipment for wells, in particular to a method for manufacturing an antifreeze well circle. Background technique [0002] At present, with the development of cities and road reconstruction, a large number of communication and power cables installed on the ground need to be moved underground and re-laid. In order to facilitate future maintenance and replacement of these facilities. So just need to build a large amount of inspection wells to meet the needs of maintenance and overhaul replacement of project in the future. The appearance of these inspection shafts has indeed provided great convenience for future maintenance and inspection and replacement. However, in winter, especially in areas with relatively cold weather, the joint between the manhole cover and the well circle is prone to freeze in snowy weather. When opening the manhole cover, if the ice layer is thicker, the ice layer covered on the ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D29/14
CPCE02D29/14
Inventor 王建辉王荣跃李春福酉治洪徐伟
Owner 四川邑诚科技有限公司
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