CN103775752A - Polytetrafluoroethylene tube and lining manufacturing process - Google Patents
Polytetrafluoroethylene tube and lining manufacturing process Download PDFInfo
- Publication number
- CN103775752A CN103775752A CN201410063720.2A CN201410063720A CN103775752A CN 103775752 A CN103775752 A CN 103775752A CN 201410063720 A CN201410063720 A CN 201410063720A CN 103775752 A CN103775752 A CN 103775752A
- Authority
- CN
- China
- Prior art keywords
- lining
- tubing
- tube
- polytetrafluoroethylene
- manufacturing process
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/12—Rigid pipes of plastics with or without reinforcement
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L11/00—Hoses, i.e. flexible pipes
- F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L11/00—Hoses, i.e. flexible pipes
- F16L11/14—Hoses, i.e. flexible pipes made of rigid material, e.g. metal or hard plastics
Abstract
The invention discloses a polytetrafluoroethylene tube and lining manufacturing process. The polytetrafluoroethylene tube and lining manufacturing process includes the steps of Step one, subjecting polytetrafluoroethylene resin to hydraulic pressure; Step two, forming a tube through double-heating of high frequency and an oven at the temperature of 250 DEG C to 320 DEG C; Step three, fastening both ends of the tube, coating the surface of the tube with high temperature resistant acrylic resin adhesive, bonding a tube blank with the inner wall of the tube at the pressure of 0.5 to 0.8Mpa, and curing an adhesive layer for forming a lining. Products manufactured through the polytetrafluoroethylene tube and lining manufacturing process can be used in chemical mediators of any kinds for a long term. The polytetrafluoroethylene tube and lining manufacturing process solves many problems in the fields such as chemical engineering, petroleum, and pharmaceutical in China. Polytetrafluoroethylene has good chemical stability, corrosion resistance, sealing, lubrication, non-viscosity, electrical insulation and anti-aging endurance, and is widely applicable to the instrument and meter industry.
Description
technical fieldthe present invention relates to a kind of polytetrafluoroethyltubing tubing and lining preparation process.
Background technique
Existing
polytetrafluoroethyltubing tubing and liningall less stables of chemical stability, corrosion resistance, sealing.
summary of the invention
For solving the problems of the technologies described above, the invention provides one
polytetrafluoroethyltubing tubing and lining preparation process, polyflon is by hydraulic pressure, adds baking oven dual-heated at 250 ℃ ~ 320 ℃, composition tubing with high frequency; And two ends are tightened, be coated with high temperature resistant acrylic size, under 0.5-0.8Mpa pressure, make pipe and tubing inner-walls of duct bonding, treat that adhesive layer solidify to form lining;
The present invention has adopted following technological scheme: one
polytetrafluoroethyltubing tubing and lining preparation process, polyflon is by hydraulic pressure, adds baking oven dual-heated at 250 ℃ ~ 320 ℃, composition tubing with high frequency; And two ends are tightened, be coated with high temperature resistant acrylic size, under 0.5-0.8Mpa pressure, make pipe and tubing inner-walls of duct bonding, treat that adhesive layer solidify to form lining;
According to the one described in preferred embodiment of the present invention
polytetrafluoroethyltubing tubing and lining, described in
polytetrafluoroethyltubing tubing and liningcan long-term work at the temperature of+250 ℃ to-180 ℃, except molten metal sodium and liquid fluorine, other all chemicalss of ability, boil also and do not change at Wang Shuizhong.Density is 2.10-2.30g/cm3;
According to the one described in preferred embodiment of the present invention
polytetrafluoroethyltubing tubing and lining, described in
polytetrafluoroethyltubing tubing and liningadd baking oven dual-heated at 300 ℃ ~ 370 ℃ with high frequency;
According to the one described in preferred embodiment of the present invention
polytetrafluoroethyltubing tubing and lining, described in
polytetrafluoroethyltubing tubing and liningthe optimal anticorrosion material of electromagnetic flowmeter, measuring media.Tensile strength >=15Mpa, breaking elongation degree >=100%;
One is prepared claimed in claim 1
polytetrafluoroethyltubing tubing and liningmaking method, comprise the following steps: step 1, polyflon passes through hydraulic pressure; Step 2, adds baking oven dual-heated at 250 ℃ ~ 320 ℃ with high frequency, composition tubing: step 3, tubing two ends are tightened, and surface is coated with high temperature resistant acrylic size, under 0.5-0.8Mpa pressure, by bonding to pipe and tubing inner-walls of duct, treat that adhesive layer solidify to form lining;
The present invention has following beneficial effect: the product that the present invention makes has and can use for a long time by which kind of class chemical mediator in office, and its generation has solved many problems in the fields such as China's chemical industry, oil, pharmacy.Teflon has good chemical stability, corrosion resistance, sealing, high lubricated not viscosity, electrical insulating property and good anti-aging endurance.Can long-term work at the temperature of+250 ℃ to-180 ℃, except molten metal sodium and liquid fluorine, other all chemicalss of ability boil also and do not change in chloroazotic acid;
Polytetrafluoroethyltubing tubing and lining play the important and pivotal role in the national economy fields such as chemical industry, machinery, electronics, electrical equipment, military project, space flight, environmental protection and bridge; Teflon lined service condition industry: chemical industry, petrochemical industry, oil refining, chlor-alkali, relieving haperacidity, phosphate fertilizer, pharmacy, agricultural chemicals, chemical fibre, dying, coking, coal gas, organic synthesis, nonferrous smelting, iron and steel, atomic power and high purity product are produced (as electrolysis with ion-exchange film), sticky material is carried and operation.Especially be widely used in instrument and meter industry, the optimal anticorrosion material of electromagnetic flowmeter, measuring media: the processing such as food, the beverage department that hydrofluoric acid, phosphoric acid, sulfuric acid, nitric acid, hydrochloric acid, various organic acid, organic solvent, strong oxidizer and hygienic requirements are highly strict.
Embodiment
Below in conjunction with specific embodiment to the detailed description of the invention;
The present invention has disclosed one
polytetrafluoroethyltubing tubing and liningmaking method, comprise the following steps: step 1, polyflon passes through hydraulic pressure; Step 2, add baking oven dual-heated at 250 ℃ ~ 320 ℃ with high frequency, composition tubing: step 3, and two ends are tightened, polytetrafluoroethyltubing tubing surface is coated with to high temperature resistant acrylic size, under 0.5-0.8Mpa pressure, by bonding to pipe and tubing inner-walls of duct, treat that adhesive layer solidify to form lining;
The product that the present invention makes has the product that the present invention makes and can use for a long time by which kind of class chemical mediator in office, and its generation has solved many problems in the fields such as China's chemical industry, oil, pharmacy.Teflon has good chemical stability, corrosion resistance, sealing, high lubricated not viscosity, electrical insulating property and good anti-aging endurance, is widely used in instrument and meter industry;
The present invention has further disclosed one
polytetrafluoroethyltubing tubing and liningmaking method comprise the following steps:
Step 1, polyflon passes through hydraulic pressure;
Step 2, adds baking oven dual-heated at 250 ℃ ~ 320 ℃ with high frequency, composition tubing:
Step 3, tightens tubing two ends, and surface is coated with high temperature resistant acrylic size, under 0.5-0.8Mpa pressure, by bonding to pipe and tubing inner-walls of duct, treats that adhesive layer solidify to form lining;
Design parameter is shown in following form:
Those skilled in the art should be understood that the present invention can not depart from the spirit or scope of the present invention with many other concrete forms realizations.Although already described embodiments of the invention, should understand the present invention and should not be restricted to these embodiments, within the spirit and scope of the invention that those skilled in the art can define as appended claims, make and change and revise.The changes that any person skilled in the art can think of, all should drop in the application's protection domain.
Claims (4)
1. a preparation process for polytetrafluoroethyltubing tubing and lining, is characterized in that: polyflon is by hydraulic pressure, adds baking oven dual-heated at 250 ℃ ~ 320 ℃, composition tubing with high frequency; And two ends are tightened, be coated with high temperature resistant acrylic size, under 0.5-0.8Mpa pressure, make pipe and tubing inner-walls of duct bonding, treat that adhesive layer solidify to form lining.
2. a kind of polytetrafluoroethyltubing tubing according to claim 1 and lining, it is characterized in that: described polytetrafluoroethyltubing tubing and lining, can long-term work at the temperature of+250 ℃ to-180 ℃, except molten metal sodium and liquid fluorine, other all chemicalss of ability, boil also and do not change at Wang Shuizhong, density is 2.10-2.30g/cm3.
3. a kind of polytetrafluoroethyltubing tubing according to claim 1 and lining, is characterized in that: be the optimal anticorrosion material of electromagnetic flowmeter, and measuring media. tensile strength >=15Mpa, breaking elongation degree >=100%.
4. make a kind of polytetrafluoroethyltubing tubing claimed in claim 1 and a lining preparation process, it is characterized in that, comprise the following steps:
Step 1, polyflon passes through hydraulic pressure;
Step 2, adds baking oven dual-heated at 250 ℃ ~ 320 ℃ with high frequency, composition tubing;
Step 3, tightens two ends, and surface is coated with high temperature resistant acrylic size, under 0.5-0.8Mpa pressure, makes pipe and tubing inner-walls of duct bonding, treats that adhesive layer solidify to form lining.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410063720.2A CN103775752A (en) | 2014-02-25 | 2014-02-25 | Polytetrafluoroethylene tube and lining manufacturing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410063720.2A CN103775752A (en) | 2014-02-25 | 2014-02-25 | Polytetrafluoroethylene tube and lining manufacturing process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103775752A true CN103775752A (en) | 2014-05-07 |
Family
ID=50568322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410063720.2A Pending CN103775752A (en) | 2014-02-25 | 2014-02-25 | Polytetrafluoroethylene tube and lining manufacturing process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103775752A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2833686A (en) * | 1955-06-20 | 1958-05-06 | Du Pont | Bonding polytetrafluoroethylene resins |
| US5382399A (en) * | 1991-07-26 | 1995-01-17 | Compagnie Plastic Omnium | Method for the production of fluorinated resin tubes, particularly of polytetrafluoroethylene |
| CN1617770A (en) * | 2001-11-29 | 2005-05-18 | 阿托菲纳公司 | Method for coating an object with a film and equipment therefor |
| CN1871120A (en) * | 2003-08-23 | 2006-11-29 | 石油技术有限公司 | Multilayer pipe with inner and outer layers of fluoropolymeric material |
| CN101292110A (en) * | 2005-10-26 | 2008-10-22 | 纳幕尔杜邦公司 | Preformed liner adhered to a pipe with an adhesive |
| CN101776188A (en) * | 2010-02-10 | 2010-07-14 | 天津市天塑滨海氟塑料制品有限公司 | Polytetrafluoroethylene tube with blind head and manufacturing method thereof |
-
2014
- 2014-02-25 CN CN201410063720.2A patent/CN103775752A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2833686A (en) * | 1955-06-20 | 1958-05-06 | Du Pont | Bonding polytetrafluoroethylene resins |
| US5382399A (en) * | 1991-07-26 | 1995-01-17 | Compagnie Plastic Omnium | Method for the production of fluorinated resin tubes, particularly of polytetrafluoroethylene |
| CN1617770A (en) * | 2001-11-29 | 2005-05-18 | 阿托菲纳公司 | Method for coating an object with a film and equipment therefor |
| CN1871120A (en) * | 2003-08-23 | 2006-11-29 | 石油技术有限公司 | Multilayer pipe with inner and outer layers of fluoropolymeric material |
| CN101292110A (en) * | 2005-10-26 | 2008-10-22 | 纳幕尔杜邦公司 | Preformed liner adhered to a pipe with an adhesive |
| CN101776188A (en) * | 2010-02-10 | 2010-07-14 | 天津市天塑滨海氟塑料制品有限公司 | Polytetrafluoroethylene tube with blind head and manufacturing method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 李红元等: "《塑料管材与加工》", 31 July 2013, 化学工业出版社 * |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Application publication date: 20140507 |