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A low-temperature composite material threaded column composition molding method

A composite material and molding method technology, applied in the field of threaded post forming and composite threaded post forming, can solve the problems of high low temperature resistance mechanical strength, poor low temperature resistance, low thermal conductivity, etc., to improve the thermal insulation function, comprehensive Excellent performance and the effect of reducing thermal conductivity

Active Publication Date: 2022-03-18
ZHUZHOU TIMES NEW MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In order to solve the problem that the current threaded column composition cannot meet the requirements of use in a cryogenic environment, the thermal conductivity is large, the low temperature resistance is poor, and cold leakage is prone to occur, a new type with low thermal conductivity and high low temperature resistance is proposed. Composition and forming method of low temperature composite threaded column with both height adjustment and anti-loosening functions

Method used

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  • A low-temperature composite material threaded column composition molding method
  • A low-temperature composite material threaded column composition molding method
  • A low-temperature composite material threaded column composition molding method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] In this example, the raw material for preparing the threaded column is 360tex glass fiber yarn, and the molding method is: 360tex glass fiber yarn impregnated with low-temperature resin is wound on the threaded mold of the upper threaded column, the tension is 80-100N, and the width of the yarn sheet is the length of the thread pitch , the resin content is 25%-27%, the winding speed is 0.1-0.2m / s, winding to the required thickness, continue to rotate until gel, and send it to the curing oven for curing. The curing temperature is 90°C for 2h+110°C for 2h. After demoulding, use a diamond tool to process the external threads to obtain the upper threaded column 42, the middle threaded column 41 and the seat body 3. The process method is the same as above.

[0042] Such as Figure 4 and Figure 6 As shown, the gasket 2 is designed as a groove 21 with equidistant tooth structure on the ring surface on both sides, and the structure filled with airgel in the groove 21, Figur...

Embodiment 2

[0044] In this example, the raw material for preparing the threaded column is 960tex glass fiber yarn, and the forming method is: 960 tex glass fiber yarn impregnated with low-temperature resin is wound on the threaded mold of the upper threaded column, the tension is 80-100N, and the width of the yarn piece is the thread pitch Length, resin content 30%-32%, winding speed 0.2-0.3m / s, winding to the required thickness, continue to rotate until gel, send to curing oven for curing, curing temperature 90°C 2h+110°C 2h. After demoulding, use a diamond tool to process the external threads to obtain the upper threaded column 42, the middle threaded column 41 and the seat body 3. The process method is the same as above.

[0045] Such as Figure 7 and Figure 8 As shown, a groove 21 is set on one side of the gasket 2, and the groove 21 is filled with airgel, wherein the groove 21 is arranged in such a way that the extension lines of the centerlines of all grooves 21 pass through the c...

Embodiment 3

[0050] Such as Figure 7 and Figure 9 As shown, in this embodiment, the gasket 2 is provided with the grooves 21 described in the third embodiment on both sides, and the grooves 21 are filled with airgel, and the grooves 21 on both sides are set correspondingly. , to ensure the strength of gasket 2.

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Abstract

A low-temperature composite material threaded column composition molding method, using fiber reinforced composite material impregnated with low-temperature resin to wind and form on the surface of a threaded winding mold, the hollow seat body and hollow column head of the threaded column composed of threaded columns are roughly formed into a belt inner After the structure of the thread is removed and the film is removed, an external thread that matches the inner thread of the seat is processed on the outside of one end of the column head. After assembling the seat body and the column head, fill the inner cavity of the column head with airgel or fill the airgel on the column head After the inner cavity, the seat body and the column head are assembled into a whole. In the present invention, multiple segments of the threaded column are respectively wound and formed to ensure performance and height adjustment, and airgel is filled in the inner cavity to greatly reduce the thermal conductivity of the threaded column, avoiding the situation that the cryogenic device is prone to cold leakage, reducing energy loss, and improving the efficiency of the device. work efficiency.

Description

technical field [0001] The invention relates to a method for forming a threaded column, in particular to a method for forming a composite material threaded column used in a low-temperature environment, and belongs to the technical field of cryogenic insulation. Background technique [0002] Cryogenic insulation technology is an important branch in the field of cryogenic technology, which is directly related to the safe operation of cryogenic devices. In addition to the functional insulation layer, the cryogenic circuit also includes a protective plate structure, which is convenient for maintenance and transportation of test products. The protective plate structure is supported by threaded columns. Therefore, the threaded columns are required to have high low-temperature resistance mechanical strength, low thermal conductivity, adjustable height, and anti-loosening function. Once the structural design is unreasonable, the material will conduct heat. If the coefficient does n...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C69/00B29C70/30B29C70/34F16B35/02F16B43/00F16B39/24
CPCB29C69/004B29C70/30B29C70/345F16B35/02F16B43/001F16B39/24
Inventor 郑永黄河孙永鹏张亚新谢绍祥
Owner ZHUZHOU TIMES NEW MATERIALS TECH
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