PTFE packing
A PTFE, packing technology, applied in the direction of engine sealing, engine components, mechanical equipment, etc., can solve the problem of not meeting the needs of high temperature equipment, and achieve the effect of improving performance and anti-wear performance
Inactive Publication Date: 2016-02-10
镇江跃进机械厂有限公司
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- Abstract
- Description
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AI Technical Summary
Problems solved by technology
[0003] Usually, when producing PTFE packing, white oil is added to the PTFE powder, but the obtained product still cannot meet the requirements of some high-temperature equipment.
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment 1
[0013] Embodiment 1: A kind of PTFE packing, with PTFE packing mass as 100%, polytetrafluoroethylene powder accounts for 75%, hydroxyl silicone oil accounts for 25%.
Embodiment 2
[0014] Embodiment 2: A kind of PTFE packing, with PTFE packing mass as 100%, polytetrafluoroethylene powder accounts for 76%, hydroxyl silicone oil accounts for 24%.
Embodiment 3
[0015] Embodiment 3: A kind of PTFE packing, with PTFE packing mass as 100%, polytetrafluoroethylene powder accounts for 77%, hydroxyl silicone oil accounts for 23%.
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The invention discloses PTFE packing which comprises polytetrafluoroethylene powder and further comprises hydroxy silicone oil. According to 100% of mass of the PTFE packing, the content of the polytetrafluoroethylene powder is 75-82%, and the content of hydroxy silicone oil is 18-25%. The PTFE packing has the advantages that the hydroxy silicone oil is added into the polytetrafluoroethylene powder for producing the PTFE packing to replace white oil, the performance of the PTFE packing is improved well, the temperature the product can resist is improved from about 140 DEG C to about 220 DEG C, and the abrasion resistance of the product is improved as well.
Description
technical field [0001] The invention relates to a PTFE packing. Background technique [0002] PTFE braided packing is a seal used in various chemical and mechanical equipment. Because PTFE material has good surface non-stick and self-lubricating properties, and also has good corrosion resistance, it is suitable for the sealing of many equipment. However, PTFE materials can be used in the temperature range of -190°C to 260°C, which is not suitable for some high-temperature and high-pressure chemical equipment, and the mechanical properties of PTFE materials are relatively soft, so it is necessary to add appropriate fillers to PTFE materials during production. To overcome these defects, in order to improve its temperature and wear resistance. [0003] Usually, when producing PTFE packing, white oil is added to the PTFE powder, but the obtained product still cannot meet the use requirements of some high-temperature equipment. Contents of the invention [0004] Purpose of th...
Claims
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IPC IPC(8): F16J15/00
Inventor 翟正平张胜芳张秋霞
Owner 镇江跃进机械厂有限公司