CN2173251Y - Packing tetrafluorinated line - Google Patents
Packing tetrafluorinated line Download PDFInfo
- Publication number
- CN2173251Y CN2173251Y CN 93244725 CN93244725U CN2173251Y CN 2173251 Y CN2173251 Y CN 2173251Y CN 93244725 CN93244725 CN 93244725 CN 93244725 U CN93244725 U CN 93244725U CN 2173251 Y CN2173251 Y CN 2173251Y
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- layer
- packing
- strand
- line
- performance
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- Expired - Fee Related
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Abstract
The utility model relates to a packing tetrafluorinated line for the knitting sealing filler, which is formed by a plurality of composite strands which are coated layer of layer and to a bundle. The strand is composed of an inner core layer which uses line-shaped fiber glass single filaments, a mixture coating layer, a lubricating layer, a graphite layer and a polytetrafluoroethylene emulsion dipping and coating layer which are made into the soft knitting strand with the toughness by drying, rolling and refining. Compared with the performance of the pure four fluorin strand, the performance of the four fluorin strand is better. The utility model resists the high temperature and the chemic cauterization, has good performance of self lubricating, large resistance of pull a good toughness, obviously improves the sealing performance, and overcomes the defects of the original technique of high hardness, poor compression resilience, etc. The knitting sealing filler can be used for the static seal and the movable seal.
Description
The utility model relates to a kind of Packing tetrafluorinated line of novel braiding airtight and watertight padding.
Airtight and watertight padding is widely used in petrochemical industry, oil refining, electric power, metallurgical, chemical fibre, pump in the industrial equipments such as shipbuilding, the stuffing seal of valve, that generally uses at present has a carbon fibre braided packing, soft graphite braided packing and polytetrafluoroethylene (PTFE) isolate a braided packing etc., all are the new products that developed in recent years, though these new products are functional, but also each have their own shortcoming: the technology of carbon fibre braided packing is earlier polyacrylonitrile to be carried out oxidation processes to become oxidized fibre, therefore carry out carbonization treatment after the fibrage, flood then ptfe emulsion filler, because of carbon fiber itself does not seal, only play skeleton function, sealing function is by polytetrafluoroethylene (PTFE), but in dipping, lack infiltration, coated is at superficial layer, so sealing life is not long, cost is also high.The soft graphite braided packing can be high temperature resistant, resistance to chemical attack, sealing property be better, but its surface easily comes off as fish phosphorus sheet, and is unfavorable to medium.Polytetrafluoroethylene (PTFE) isolates a braided packing, and various performances are all more satisfactory, but can only be used in the temperature below 250 ℃, and cold flowability is arranged, and manufacturing technique is also complicated, and cost is big certainly.
The purpose of this utility model provides a kind of high-performance, low cost with regard to being to overcome above-mentioned many disadvantages, has the radially encapsulant of tensile property---Packing tetrafluorinated line.
The utility model is achieved in that as the glass fibre of tension muscle and compound as the polytetrafluoroethylene (PTFE) of base-material and stuffing.It forms Packing tetrafluorinated line by many strand bunchys, and every strand is successively contained by inner sandwich layer, intermixture cladding, lubricating layer, graphite linings, ptfe emulsion dip-coating layer from the inside to the outside and is composited.Can be woven into the dynamic seal of various types specification with this Packing tetrafluorinated line.
This Packing tetrafluorinated line is compared with known technology, overcome known technology hardness higher, lack compression resilience, can only make the defective of oilless bearing, axle sleeve and mechanical static seal, have that tensile strength is big, compression resilience good, characteristics such as pliability is good, high temperature resistant, chemical resistance, good airproof performance, so belong to the novel good material that weaves airtight and watertight padding, both can be used for static seal, can be used for movable sealing again.
Fig. 1 is the utility model outline drawing.
Fig. 2 is the sectional view of Fig. 1.
From accompanying drawing 1-2 as can be known, Packing tetrafluorinated line be with the glass fibre monofilament make the tension muscle, polytetrafluoroethylene (PTFE) is made the main body base-material, and stuffing is compound.It forms Packing tetrafluorinated line by many strands (1) bunchy.
The making of strand (1) is at first made inner sandwich layer (2) with commercially available glass fibre monofilament, flood intermixture cladding (3), this cladding is by ptfe emulsion, the mixture that graphite powder and small amount of PS-21 binding agents are formed, the weight ratio of its composition is: ptfe emulsion: graphite powder: PS-21 binding agent=10:3.5:2, carry out suitable dried behind the dipping, but must keep certain water content, follow dip-coating lubricating layer (4), can adopt silicone oil or machinery oil, select arbitrarily, be coated with powdery graphite linings (5) again, be ptfe emulsion dip-coating layer (6) at last, promptly form strand (1), strand bunchy drying is again handled and is carried out multiple tracks and roll to refine and become to have toughness, soft Packing tetrafluorinated line, each procedure of whole process of production is finished on a line.
By the needs of sealing operating mode, select strand (1) bunchy of certain radical to constitute the tetrafluoro line through above-mentioned PROCESS FOR TREATMENT, utilize this tetrafluoro line can be woven into the airtight and watertight padding or the gasket seal of various types specification.
Claims (4)
1, a kind of Packing tetrafluorinated line that weaves airtight and watertight padding, by glass fibre with polytetrafluoroethylene (PTFE) is compound constitutes, it is characterized in that this tetrafluoro line is to be formed by many strands (1) bunchy, every strand (1) is successively contained by inner sandwich layer (2), intermixture cladding (3), lubricating layer (4), graphite linings (5), ptfe emulsion dip-coating layer (6) from inside to outside and is composited.
2, Packing tetrafluorinated line as claimed in claim 1 is characterized in that described inner sandwich layer (2) is the glass fibre monofilament of wire.
3, Packing tetrafluorinated line as claimed in claim 1 is characterized in that the mixture that described intermixture cladding (3) is mixed by a certain percentage by ptfe emulsion, graphite powder, PS-21 adhesive.
4, Packing tetrafluorinated line as claimed in claim 1 is characterized in that described lubricating layer (4) can be silicone oil or machinery oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93244725 CN2173251Y (en) | 1993-11-15 | 1993-11-15 | Packing tetrafluorinated line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93244725 CN2173251Y (en) | 1993-11-15 | 1993-11-15 | Packing tetrafluorinated line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2173251Y true CN2173251Y (en) | 1994-08-03 |
Family
ID=33817871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93244725 Expired - Fee Related CN2173251Y (en) | 1993-11-15 | 1993-11-15 | Packing tetrafluorinated line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2173251Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100339615C (en) * | 2001-05-07 | 2007-09-26 | 卡尔弗罗伊登柏格两合公司 | Gland packing and method for the production thereof |
| CN1944311B (en) * | 2006-09-13 | 2011-01-19 | 营口耐斯特滤料科技有限公司 | PTFE dip coated glass fiber and its producing method |
| CN101649516B (en) * | 2009-07-30 | 2011-04-27 | 绍兴文理学院 | Silk-coating method for PVC/PU coating polyester industrial yarns and device thereof |
| CN103372980A (en) * | 2012-04-17 | 2013-10-30 | 夏华松 | Processing method of high-mesh graphite hexafluoropropylene wire |
| CN108626400A (en) * | 2018-07-30 | 2018-10-09 | 东谷密封材料（泰州）有限公司 | A kind of combined labyrinth and carbon gland filler |
-
1993
- 1993-11-15 CN CN 93244725 patent/CN2173251Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100339615C (en) * | 2001-05-07 | 2007-09-26 | 卡尔弗罗伊登柏格两合公司 | Gland packing and method for the production thereof |
| CN1944311B (en) * | 2006-09-13 | 2011-01-19 | 营口耐斯特滤料科技有限公司 | PTFE dip coated glass fiber and its producing method |
| CN101649516B (en) * | 2009-07-30 | 2011-04-27 | 绍兴文理学院 | Silk-coating method for PVC/PU coating polyester industrial yarns and device thereof |
| CN103372980A (en) * | 2012-04-17 | 2013-10-30 | 夏华松 | Processing method of high-mesh graphite hexafluoropropylene wire |
| CN108626400A (en) * | 2018-07-30 | 2018-10-09 | 东谷密封材料（泰州）有限公司 | A kind of combined labyrinth and carbon gland filler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |