Manufacturing method of large-diameter cylinder prefabricated body

A production method and technology of prefabricated body, applied in furnace, lining repair, furnace lining and other directions, can solve the problems of discount of thermal insulation effect, inability to reduce the weight of mold tooling, large size of equipment, etc., to ensure stability and sturdiness, Excellent thermal insulation effect, excellent low thermal conductivity effect

Pending Publication Date: 2022-02-08
XIAN KANGBEN MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the prior art, the acupuncture movement mechanism of the acupuncture machine can only move vertically up and down to realize the acupuncture operation, and since the diameter of the large-diameter cylindrical prefabricated body is almost more than 3m, the vertical acupuncture movement can only be performed on the prefabricated body. Developed directly above, resulting in too large equipment dimensions, low utilization rate of work space, and high equipment cost, therefore, it is impossible to achieve corporate profitability
At the same time, in the past technology, most preforms of thermal field materials are produced by pure acupuncture. The pure acupuncture production of large-diameter cylindrical preforms will inevitably lead to heavy product weight, long production cycle, and the mold tooling cannot be lightened. The heat insulation effect is greatly reduced
Based on the above, the existing and previous technologies cannot realize the preparation of large diameters

Method used

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  • Manufacturing method of large-diameter cylinder prefabricated body

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] This embodiment includes the following steps:

[0044] Step 1. Wrap the plastic film on the cylindrical mold, and then paste the cushion layer on the plastic film to obtain the special mold for the prefabricated body; the cylindrical mold is prepared from circular woodworking boards, keels and plywood, and 5 circular The woodworking board is enclosed within the workpiece shaft, and a circle of keel strips are fixed at intervals of 45mm on the circumference, and one layer of plywood is glued on the keel strips to obtain a special mold for the prefabricated body. The outer diameter of the cylindrical mold is 3150mm, and the length is 1540mm; The process of wrapping the plastic film is as follows: wrap a layer of plastic film on the cylinder mold, then use a hot blower to blow the plastic film flat and apply it tightly on the cylinder mold; the cushion is an EVA foam cushion; the plastic seal The thickness of the film is 0.02mm, and the thickness of the cushion layer is 12...

Embodiment 2

[0055] This embodiment includes the following steps:

[0056] Step 1. Wrap the plastic film on the cylindrical mold, and then paste the cushion layer on the plastic film to obtain a special mold for the prefabricated body; the cylindrical mold is prepared from circular woodworking boards, keels and plywood, and 5 circular The woodworking board is enclosed within the workpiece shaft, and a circle of keel strips are fixed at intervals of 45 mm on the circumference, and one layer of plywood is glued on the keel strips to obtain a special mold for prefabricated bodies. The outer diameter of the cylindrical mold is 3366 mm, and the length is 1560 mm; The process of wrapping the plastic film is as follows: wrap a layer of plastic film on the cylinder mold, then use a hot blower to blow the plastic film flat and apply it tightly on the cylinder mold; the cushion is an EVA foam cushion; the plastic seal The thickness of the film is 0.03mm, and the thickness of the cushion layer is 10m...

Embodiment 3

[0067] This embodiment includes the following steps:

[0068] Step 1. Wrap the plastic film on the cylindrical mold, and then paste the cushion layer on the plastic film to obtain the special mold for the prefabricated body; the cylindrical mold is prepared from circular woodworking boards, keels and plywood, and 5 circular The woodworking board is enclosed within the workpiece shaft, and a circle of keel strips are fixed at intervals of 45mm on the circumference, and a layer of plywood is glued on the keel strips to obtain a special mold for the prefabricated body. The outer diameter of the cylindrical mold is 3000mm, and the length is 3000mm; The process of wrapping the plastic film is as follows: wrap a layer of plastic film on the cylinder mold, then use a hot blower to blow the plastic film flat and apply it tightly on the cylinder mold; the cushion is an EVA foam cushion; the plastic seal The thickness of the film is 0.01mm, and the thickness of the cushion layer is 13mm...

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Abstract

The invention discloses a manufacturing method of a large-diameter cylinder prefabricated body. The manufacturing method comprises the following steps: 1, preparing a special mold for the prefabricated body; 2, preparing a cylinder inner wall woven carbon cloth/net tire composite material needling unit layer; 3, preparing a first carbon fiber prepreg cloth isolation layer; 4, preparing a net tire/carbon fiber circulating unit layer; 5, preparing a second carbon fiber prepreg cloth isolation layer; 6, preparing a cylinder outer wall woven carbon cloth/net tire composite material needling unit layer; and 7, preparing a flange woven carbon cloth/net tire composite material needled layer to obtain a large-diameter cylinder prefabricated body with the diameter larger than 3 m. The annular sandwich design is adopted, a core heat insulation layer is wrapped, mechanical supporting of the prefabricated body in a furnace is achieved, the stability and firmness of the overall structure are guaranteed, the annular sandwich area is a low-density area and has excellent low-heat-conductivity performance and heat insulation effect, compared with a pure C/C prefabricated body structure, heat loss is greatly reduced, and the method is energy-saving, environment-friendly and extremely economical.

Description

technical field [0001] The invention belongs to the technical field of heat preservation materials for furnace bodies, and in particular relates to a method for manufacturing a large-diameter cylindrical prefabricated body. Background technique [0002] At present, graphite felt is mostly used for the insulation layer of the furnace body. During use, due to the influence of the atmosphere in the furnace on the graphite felt in the long-term high-temperature environment and the corrosion of the graphite felt by the air during the process of loading and unloading, the graphite felt needs to be replaced regularly. . Usually, when replacing, carbon felt is wrapped on a special cylindrical steel mesh, and after wrapping to a certain thickness, it is sewn with carbon rope. After sewing, it is sent into the furnace together with the steel mold, and finally the steel mold is taken out. [0003] In recent years, with the rapid development of the C / C industry, the scale of domestic C...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B9/00B32B9/04B32B3/30B32B1/08F27D1/00F27D1/16
CPCB32B9/007B32B9/04B32B9/047B32B3/30B32B5/02B32B1/08F27D1/0009F27D1/0033F27D1/1626B32B2262/106
Inventor 侯建荣田冬杨新徐永花李颖王颖张红葳赵景飞
Owner XIAN KANGBEN MATERIAL
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