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Preparation method of ultra-large polytetrafluoroethylene seal ring

A polytetrafluoroethylene, super-large technology, used in manufacturing tools, metal processing equipment, grinding/polishing equipment, etc., can solve problems such as restricting the application of polytetrafluoroethylene, to avoid harm to the human body, easy to operate, The effect of solving sealing problems

Inactive Publication Date: 2013-05-01
WUXI XIANGJIAN PTFE PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Due to the non-stick properties of polytetrafluoroethylene (PTFE), it is currently technically difficult to make the outer diameter of polytetrafluoroethylene (PTFE) gaskets to a larger size (generally limited to less than 2000mm), thus limiting the use of polytetrafluoroethylene (PTFE). Application of (PTFE) gaskets, for example, polytetrafluoroethylene (PTFE) gaskets cannot be used for sealing or as retaining rings and piston rings on some super-large equipment

Method used

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  • Preparation method of ultra-large polytetrafluoroethylene seal ring
  • Preparation method of ultra-large polytetrafluoroethylene seal ring
  • Preparation method of ultra-large polytetrafluoroethylene seal ring

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Embodiment Construction

[0067] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0068] figure 1 It shows the structure block diagram of the preparation device of the super large polytetrafluoroethylene sealing ring according to the present invention. Reference figure 1 , The preparation device 1 of the ultra-large PTFE seal ring includes: a cutting device 100, a welding device 200, and a surface treatment device 300. Among them, the cutting device 100 is used to cut the two ends of the super-large PTFE sheet to form...

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Abstract

The invention provide a preparation method of an ultra-large polytetrafluoroethylene seal ring, which comprises the steps of (a) cutting the two ends of a polytetrafluoroethylene plate to form inclined planes with the same angle, and (b) welding the two ends of the polytetrafluoroethylene plate together to form the ultra-large polytetrafluoroethylene seal ring, wherein the external diameter of the ultra-large polytetrafluoroethylene seal ring is 2-10m. The ultra-large polytetrafluoroethylene seal ring can be obtained with the adoption of the preparation method.

Description

Technical field [0001] The invention relates to the field of polytetrafluoroethylene, in particular to a preparation method of a super large polytetrafluoroethylene sealing ring. Background technique [0002] Polytetrafluoroethene (Polytetrafluoroethene, abbreviated as PTFE) is generally called "non-stick coating" or "easy to clean wok material". It is a synthetic polymer material that uses fluorine to replace all hydrogen atoms in polyethylene. This material is resistant to acids, alkalis, and various organic solvents, and is almost insoluble in all solvents. At the same time, PTFE has the characteristics of high temperature resistance, and its friction coefficient is very low, so it can be used for lubrication, and it has become an ideal coating for easy-to-clean woks and water pipes. Due to the non-stick properties of polytetrafluoroethylene (PTFE), it is currently technically difficult to make the outer diameter of polytetrafluoroethylene (PTFE) gaskets reach a larger size (...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C65/02B29C37/00B26D3/02B26D3/06B26D7/01B24B29/04B29L31/26
Inventor 乔忠强王健
Owner WUXI XIANGJIAN PTFE PROD
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