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Low-temperature composite threaded column composition forming method

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

Active Publication Date: 2020-04-28
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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  • Low-temperature composite threaded column composition forming method
  • Low-temperature composite threaded column composition forming method
  • Low-temperature composite threaded column composition forming 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 forming 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

The invention discloses a low-temperature composite threaded column composition forming method. The low-temperature composite threaded column composition forming method comprises the steps that a hollow seat body and a hollow column head of a threaded column of a threaded column composition are roughly formed into a structure with an inner thread and demolded in the mode that a cryogenic resin impregnated fiber-reinforced composite is wound on the surface of a winding mold with a thread to be formed, then an outer thread matched with the inner thread of the seat body is machined on the outer side of one end of the column head, and an inner cavity of the column head is filled with aerogel after the seat body and the column head are assembled into a whole, or the seat body and the column head are assembled into the whole after the inner cavity of the column head is filled with the aerogel. A plurality of sections of the threaded column are wound to be formed correspondingly, performanceis guaranteed, the height is adjusted, the inner cavity is filled with the aerogel, thus heat conductivity coefficients of the threaded column are greatly decreased, the situation that a deep coolingdevice is prone to cold leakage is avoided, the energy loss is lowered, and the working efficiency of the device is improved.

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 Applications(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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