CN110171124A - Polytetrafluoroethylene (PTFE) plate inner lining process and welder resistant to high temperature - Google Patents
Polytetrafluoroethylene (PTFE) plate inner lining process and welder resistant to high temperature Download PDFInfo
- Publication number
- CN110171124A CN110171124A CN201910577308.5A CN201910577308A CN110171124A CN 110171124 A CN110171124 A CN 110171124A CN 201910577308 A CN201910577308 A CN 201910577308A CN 110171124 A CN110171124 A CN 110171124A
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- CN
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- Prior art keywords
- plate
- polytetrafluoroethylene
- ptfe
- tube body
- high temperature
- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/36—Bending and joining, e.g. for making hollow articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
- B29C63/26—Lining or sheathing of internal surfaces
- B29C63/34—Lining or sheathing of internal surfaces using tubular layers or sheathings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C69/00—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
The present invention relates to a kind of polytetrafluoroethylene (PTFE) plate inner lining process resistant to high temperature and welders, belong to polytetrafluoroethylene (PTFE) welding technology field.The following steps are included: (1) polytetrafluoroethylene (PTFE) plate cuts blanking, cylinder is rolled into, it is polytetrafluoroethylene (PTFE) cylinder that PFA film overlap welding is clamped between the side of two coincidences；(2) gas vent is opened up on tube body；(3) inner surface of tube body gluing；(4) polytetrafluoroethylene (PTFE) cylinder is installed in tube body, tube body is vacuumized by gas vent；(5) tube body is closed at both ends, and steam presses polytetrafluoroethylene (PTFE) cylinder；(6) gas vent of tube body is repaired.What the present invention can consolidate fixes polytetrafluoroethylene (PTFE) plate, and welding quality is high, and polytetrafluoroethylene (PTFE) plate surface is smooth, and liner quality is high.
Description
Technical field
The present invention relates to a kind of polytetrafluoroethylene (PTFE) plate inner lining process resistant to high temperature and welders, belong to polytetrafluoroethylene (PTFE)
Welding technology field.
Background technique
Polytetrafluoroethylene (PTFE) (Teflon or PTFE), is commonly called as " King ", be as tetrafluoroethene it is aggregated made of macromolecule
Compound has excellent chemical stability, corrosion resistance, sealing property, high lubrication, non-stickiness, electrical insulation and good anti-ageing
Change endurance.As engineering plastics, polyfluortetraethylene pipe, stick, band, plate, film etc. can be made into.It is higher to be generally used for performance requirement
Corrosion resistant pipeline or tank body etc..After large tank inner liner polytetrafluoroethylene plate, there is excellent chemical stability, corrosion resistant
Corrosion, sealing property, high lubrication, non-stickiness, electrical insulation and good anti-aging endurance.Using polytetrafluoroethylene (PTFE) plate as tank
Perhaps tube body liner usually spills polytetrafluoroethylene powder on tank body or inboard wall of tube body to body, heats to tank body or tank body outside,
High-temperature molding.This molding mode, complex process, temperature are difficult to control precisely, and outer surface has flaw to be difficult to eliminate after molding.
Summary of the invention
The object of the present invention is to provide a kind of polytetrafluoroethylene (PTFE) plate inner lining process resistant to high temperature and welder, Neng Gouwen
Solid fix polytetrafluoroethylene (PTFE) plate, welding quality is high, and polytetrafluoroethylene (PTFE) plate surface is smooth, and liner quality is high.
Polytetrafluoroethylene (PTFE) plate inner lining process resistant to high temperature of the present invention, comprising the following steps:
(1) polytetrafluoroethylene (PTFE) plate cuts blanking, rolls into cylinder, clamps PFA film overlap welding between the side of two coincidences
For polytetrafluoroethylene (PTFE) cylinder；PFA film length and polytetrafluoroethylene (PTFE) plate are adapted arrangement, and PFA thin-film width is 4-6cm.
(2) gas vent is opened up on tube body；
(3) inner surface of tube body gluing；
(4) polytetrafluoroethylene (PTFE) cylinder is installed in tube body, tube body is vacuumized by gas vent；
(5) tube body is closed at both ends, and steam presses polytetrafluoroethylene (PTFE) cylinder；
(6) gas vent of tube body is repaired.
The steam pressure 0.3-0.4MPa, 80-120 DEG C of vapor (steam) temperature.
It is described polytetrafluoroethylene (PTFE) cylinder is installed in tube body before, exhaust line is pasted on inboard wall of tube body, is applied on exhaust line
Glue.
Before the stomata that begins to rehearse, polish inboard wall of tube body.
It is further comprising the steps of: (a) oil removing before the inner surface of tube body gluing；(b) inner surface of tube body sandblasting；(c)
Inner surface of tube body cleaning.
Polyfluortetraethylene plate resistant to high temperature of the present invention for polytetrafluoroethylene (PTFE) plate inner lining process resistant to high temperature
Material welder, including support plate, support plate top are equipped with pressing plate, around support plate and pressing plate, are equipped with tapered end；
Support plate includes supporting plate, and supporting plate is equipped with the intermediate bending welded plate for having bending groove, is equipped in bending groove
Hollow welded pipe；
Pressing plate includes jointing plate, is equipped with regulation cock through jointing plate from top to bottom, and jointing plate bottom is equipped with jointing plate, ballast
Plate side is equipped with link block, and link block bottom is equipped with connector, is correspondingly connected with head, connecting groove, connector are opened up on jointing plate
There is adjustment gap along the vertical direction in connecting groove.
The course of work or working principle:
Polytetrafluoroethylene (PTFE) plate is placed on one side on bending welded plate, puts PFA film above, polytetrafluoroethylene (PTFE) plate is another
Pressing plate is bypassed on one side, is placed on PFA film, and electric heating wire passes through welded pipe, by welded pipe and bending welded plate, to poly- four
Vinyl fluoride plate heats more evenly, and welding effect is good.
Regulation cock is capable of the angle of appropriate adjustment jointing plate, it is ensured that the pressure that pressing plate is pressed on polytetrafluoroethylene (PTFE) plate is equal
It is even, it is ensured that welding quality.
There are heat dissipation gaps between the welded plate and welded pipe.
Welded plate arrangement is stretched out at the welded pipe both ends, and the portion of external that welded plate is stretched out in welded pipe is equipped with fixing sleeve.
The tapered end includes U-tube, and U-tube open end is set with jam plate, and jam plate is fastened to U-tube by locking nut
On.
The jointing plate is equipped with portable shelf.
The bottom of the support plate is equipped with supporting leg.
Compared with prior art, the beneficial effect of polytetrafluoroethylene (PTFE) plate inner lining process resistant to high temperature of the present invention
It is:
1, the present invention is by being welded into tubular for polytetrafluoroethylene (PTFE) plate, and by opening up gas vent, cooperates vacuum equipment,
Whole to press to polytetrafluoroethylene (PTFE) plate on inboard wall of tube body, compactness is high, and fitting fastness is good；By pasting exhaust line, row
Gas effect is more preferable；Using PFA film overlap welding, firm welding；
2, by inflation, the compactness of polytetrafluoroethylene (PTFE) plate and inboard wall of tube body can be further enhanced；By filling high pressure
Gas further enhances the compactness of polytetrafluoroethylene (PTFE) plate and inboard wall of tube body；Ensure that polytetrafluoroethylene (PTFE) and inboard wall of tube body are viscous
Fastness is connect, is not easy to fall.
Compared with prior art, the beneficial effect of polytetrafluoroethylene (PTFE) plate welder resistant to high temperature of the present invention
It is:
1, the present invention is by setting bending-type welded plate and hollow welded pipe, being capable of more evenly distribution of heat, it is ensured that weldering
Connect quality；By welding molded polytetrafluoroethylene (PTFE) plate, plate surface is smooth, improves inner lining surface smoothness, improves
Liner quality；
2, by setting regulation cock, the uniformity of jointing plate pressing support plate can be adjusted, it is ensured that welding quality；
It 3, being capable of locking support plate and pressing plate by tapered end, it is ensured that the compactness of support plate and pressing plate in welding process, really
Protect welding quality.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of one embodiment of the invention,
Fig. 2 is the overlooking structure diagram of support plate in Fig. 1,
Fig. 3 is C-C schematic cross-sectional view in Fig. 2,
Fig. 4 is B-B schematic cross-sectional view in Fig. 2,
Fig. 5 is lock head structure schematic diagram,
Fig. 6 is A-A schematic cross-sectional view in Fig. 1.
In figure: 1, pressing plate 2, support plate 3, tapered end；
1.1, regulation cock 1.2, portable shelf 1.3, jointing plate 1.4, jointing plate 1.5, link block 1.6, positioning strip
1.7, connector 1.8, connecting groove；
2.1, supporting plate 2.2, fixing sleeve 2.3, bending welded plate 2.4, supporting leg 2.5, welded pipe；
3.1, U-tube 3.2, jam plate 3.3, locking nut.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention is made further clear
Chu is fully described by:
Embodiment 1
Polytetrafluoroethylene (PTFE) plate inner lining process resistant to high temperature of the present invention, comprising the following steps:
(1) polytetrafluoroethylene (PTFE) plate cuts blanking, rolls into cylinder, clamps FPA film overlap welding between the side of two coincidences
For polytetrafluoroethylene (PTFE) cylinder；FPA film length and polytetrafluoroethylene (PTFE) plate are adapted arrangement, and FPA thin-film width is 5cm.
(2) it polishes inboard wall of tube body；Gas vent is opened up on tube body；
(3) inner surface of tube body is handled as follows: (a) oil removing；Using high temperature and high pressure gas oil removing, pressure 0.3MPa,
80 ± 5 DEG C of temperature.(b) inner surface of tube body sandblasting；(c) inner surface of tube body cleans.
Then, inner surface of tube body gluing；
(4) exhaust line, gluing on exhaust line are pasted on inboard wall of tube body.Polytetrafluoroethylene (PTFE) cylinder is installed in tube body, tube body
It is vacuumized by gas vent；
(5) tube body is closed at both ends, and steam presses polytetrafluoroethylene (PTFE) cylinder；Steam pressure 0.3MPa, 100 ± 5 DEG C of vapor (steam) temperature.
(6) gas vent of tube body is repaired.
Up to the tube body for having polytetrafluoroethyllining lining.
As shown in Fig. 1~Fig. 6, the high temperature resistant of the present invention for polytetrafluoroethylene (PTFE) plate inner lining process resistant to high temperature
Polytetrafluoroethylene (PTFE) plate welder, including support plate 2 is equipped with pressing plate 1 above support plate 2, around support plate 2 and pressing plate 1,
Equipped with tapered end 3；
Support plate 2 includes supporting plate 2.1, and supporting plate 2.1 is equipped with the intermediate bending welded plate 2.3 for having bending groove, bending
Hollow welded pipe 2.5 is equipped in groove；
Pressing plate 1 includes jointing plate 1.3, is equipped with regulation cock 1.1, the bottom jointing plate 1..3 through jointing plate 1.3 from top to bottom
Equipped with jointing plate 1.4,1.3 side of jointing plate is equipped with link block 1.5, and 1.5 bottom of link block is equipped with connector 1.7, is correspondingly connected with
First 1.7, connecting groove 1.8 is opened up on jointing plate 1.4, connector 1.7 has adjustment empty along the vertical direction in connecting groove 1.8
Gap.Bending welded plate 2.3 can be fixedly connected by welding with supporting plate.
There are heat dissipation gaps between welded plate 2.3 and welded pipe 2.5.Heat dissipation gap can be equipped with 2.5 two sides of welded pipe.
2.5 both ends of welded pipe are stretched out welded plate 2.3 and are arranged, the portion of external that welded plate 2.3 is stretched out in welded pipe 2.5 is equipped with solid
Surely 2.2 are covered.Fixing sleeve 2.2 can be fixedly connected by welding supporting plate, for being fixedly welded pipe.Welded pipe both ends are equipped with fixation
Set.
Tapered end 3 includes U-tube 3.1, and 3.1 open end of U-tube is set with jam plate 3.2, and jam plate 3.2 is tight by locking nut 3.3
It is affixed in U-tube 3.1.
Jointing plate 1.3 is equipped with portable shelf 1.2.Portable shelf 1.2 facilitates pick-and-place pressing plate.
2.1 bottom of supporting plate is equipped with supporting leg 2.4.
The course of work or working principle:
Insert positioning into the gap between bending welded plate and welded pipe from jointing plate between wherein two link blocks
Item 1.6, polytetrafluoroethylene (PTFE) plate is placed on one side on bending welded plate, puts PFA film above, then place pressing plate, polytetrafluoro
Ethylene plate another side bypasses pressing plate, is placed on PFA film, by observing the stitching state of pressing plate and polyfluortetraethylene plate,
Suitable regulation cock bottom contacts jointing plate, if pressing is too tight, is screwed down regulation cock, and distance increases between jointing plate and jointing plate
Greatly, then the pressure of jointing plate is suitably dispersed outward, how to press pine, then regulation cock is unclamped upwards, between jointing plate and jointing plate
Distance reduces, and jointing plate pressure suitably to increase at this, keeps pressing plate to be uniformly pressed together on polytetrafluoroethylene (PTFE) plate as a result,.
PFA film is set between two sides of polytetrafluoroethylene (PTFE) plate, and polytetrafluoroethylene (PTFE) plate is welded into polytetrafluoro by overlap welding
Ethylene cylinder.
Electric heating wire passes through welded pipe, and by welded pipe and bending welded plate, heat dissipation uniformly, adds polytetrafluoroethylene (PTFE) plate
More evenly, welding effect is good for heat.
Embodiment 2
For the high temperature and high pressure gas to inner surface of tube body oil removing, pressure 0.4MPa, 90 ± 5 DEG C of temperature.
Tube body is closed at both ends, and steam presses polytetrafluoroethylene (PTFE) cylinder；Steam pressure 0.35MPa, 80 ± 5 DEG C of vapor (steam) temperature.FPA
Thin-film width is 6cm.Remaining is the same as embodiment 1.
Embodiment 3
For the high temperature and high pressure gas to inner surface of tube body oil removing, pressure 0.35MPa, 95 ± 5 DEG C of temperature.
Tube body is closed at both ends, and steam presses polytetrafluoroethylene (PTFE) cylinder；Steam pressure 0.35MPa, 110 ± 5 DEG C of vapor (steam) temperature.
FPA thin-film width is 4cm.Remaining is the same as embodiment 1.
Embodiment 4
For the high temperature and high pressure gas to inner surface of tube body oil removing, pressure 0.4MPa, 105 ± 5 DEG C of temperature.
Tube body is closed at both ends, and steam presses polytetrafluoroethylene (PTFE) cylinder；Steam pressure 0.3MPa, 120 ± 5 DEG C of vapor (steam) temperature.Its
Remaining same embodiment 1.
Embodiment 5
For the high temperature and high pressure gas to inner surface of tube body oil removing, pressure 0.4MPa, 100 ± 5 DEG C of temperature.
Tube body is closed at both ends, and steam presses polytetrafluoroethylene (PTFE) cylinder；Steam pressure 0.4MPa, 105 ± 5 DEG C of vapor (steam) temperature.Its
Remaining same embodiment 1.
Embodiment 6
For the high temperature and high pressure gas to inner surface of tube body oil removing, pressure 0.3MPa, 110 ± 5 DEG C of temperature.
Tube body is closed at both ends, and steam presses polytetrafluoroethylene (PTFE) cylinder；Steam pressure 0.4MPa, 90 ± 5 DEG C of vapor (steam) temperature.Remaining
With embodiment 1.
Embodiment 7
For the high temperature and high pressure gas to inner surface of tube body oil removing, pressure 0.35MPa, 120 ± 5 DEG C of temperature.
Tube body is closed at both ends, and steam presses polytetrafluoroethylene (PTFE) cylinder；Steam pressure 0.4MPa, 95 ± 5 DEG C of vapor (steam) temperature.Remaining
With embodiment 1.
To the description in the direction of structure and relative positional relationship in the present invention, such as all around above and below description, not structure
At limitation of the present invention, only for convenience of description.
Claims (10)
1. a kind of polytetrafluoroethylene (PTFE) plate inner lining process resistant to high temperature, which comprises the following steps:
(1) polytetrafluoroethylene (PTFE) plate cuts blanking, rolls into cylinder, it is poly- for clamping PFA film overlap welding between the side of two coincidences
Tetrafluoroethene cylinder；
(2) gas vent is opened up on tube body；
(3) inner surface of tube body gluing；
(4) polytetrafluoroethylene (PTFE) cylinder is installed in tube body, tube body is vacuumized by gas vent；
(5) tube body is closed at both ends, and steam presses polytetrafluoroethylene (PTFE) cylinder；
(6) gas vent of tube body is repaired.
2. polytetrafluoroethylene (PTFE) plate inner lining process resistant to high temperature according to claim 1, which is characterized in that steam pressure
0.3-0.4MPa, 80-120 DEG C of vapor (steam) temperature.
3. polytetrafluoroethylene (PTFE) plate inner lining process resistant to high temperature according to claim 1, which is characterized in that by polytetrafluoroethyl-ne
Before alkene cylinder installs in tube body, exhaust line, gluing on exhaust line are pasted on inboard wall of tube body.
4. polytetrafluoroethylene (PTFE) plate inner lining process resistant to high temperature according to claim 3, which is characterized in that begin to rehearse stomata it
Before, it polishes inboard wall of tube body.
5. polytetrafluoroethylene (PTFE) plate inner lining process resistant to high temperature according to claim 1, which is characterized in that inner surface of tube body
It is further comprising the steps of before gluing: (a) oil removing；(b) inner surface of tube body sandblasting；(c) inner surface of tube body cleans.
6. a kind of polytetrafluoroethylene (PTFE) plate welder resistant to high temperature for polytetrafluoroethylene (PTFE) plate inner lining process resistant to high temperature,
It is characterised in that it includes support plate (2), support plate (2) top is equipped with pressing plate (1), around support plate (2) and pressing plate (1), is equipped with
Tapered end (3)；
Support plate (2) includes supporting plate (2.1), and supporting plate (2.1) is equipped with the intermediate bending welded plate (2.3) for having bending groove,
Hollow welded pipe (2.5) is equipped in bending groove；
Pressing plate (1) includes jointing plate (1.3), is equipped with regulation cock (1.1) through jointing plate (1.3) from top to bottom, jointing plate
The bottom (1..3) is equipped with jointing plate (1.4), and jointing plate (1.3) side is equipped with link block (1.5), and link block (1.5) bottom is equipped with
Connector (1.7) is correspondingly connected with head (1.7), is opened up on jointing plate (1.4) connecting groove (1.8), and connector (1.7) is connecting
There is adjustment gap along the vertical direction in groove (1.8).
7. polytetrafluoroethylene (PTFE) plate welder resistant to high temperature according to claim 6, which is characterized in that welded plate
(2.3) there are heat dissipation gaps between welded pipe (2.5).
8. polytetrafluoroethylene (PTFE) plate welder resistant to high temperature according to claim 6, which is characterized in that welded pipe
(2.5) welded plate (2.3) arrangement is stretched out at both ends, and the portion of external that welded plate (2.3) are stretched out in welded pipe (2.5) is equipped with fixing sleeve
(2.2)。
9. according to the described in any item polytetrafluoroethylene (PTFE) plate welders resistant to high temperature of claim 6-8, which is characterized in that lock
Head (3) includes U-tube (3.1), and U-tube (3.1) open end is set with jam plate (3.2), and jam plate (3.2) passes through locking nut (3.3)
It is fastened on U-tube (3.1).
10. polytetrafluoroethylene (PTFE) plate welder resistant to high temperature according to claim 9, which is characterized in that jointing plate
(1.3) portable shelf (1.2) are equipped with；Supporting plate (2.1) bottom is equipped with supporting leg (2.4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910577308.5A CN110171124A (en) | 2019-06-28 | 2019-06-28 | Polytetrafluoroethylene (PTFE) plate inner lining process and welder resistant to high temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910577308.5A CN110171124A (en) | 2019-06-28 | 2019-06-28 | Polytetrafluoroethylene (PTFE) plate inner lining process and welder resistant to high temperature |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110171124A true CN110171124A (en) | 2019-08-27 |
Family
ID=67699487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910577308.5A Withdrawn CN110171124A (en) | 2019-06-28 | 2019-06-28 | Polytetrafluoroethylene (PTFE) plate inner lining process and welder resistant to high temperature |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110171124A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116329841A (en) * | 2023-04-12 | 2023-06-27 | 山东辉腾防腐设备有限公司 | Welding device for processing steel lining tetrafluoro storage tank |
-
2019
- 2019-06-28 CN CN201910577308.5A patent/CN110171124A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116329841A (en) * | 2023-04-12 | 2023-06-27 | 山东辉腾防腐设备有限公司 | Welding device for processing steel lining tetrafluoro storage tank |
| CN116329841B (en) * | 2023-04-12 | 2024-05-10 | 山东辉腾防腐设备有限公司 | Welding device for processing steel lining tetrafluoro storage tank |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190827 |
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| WW01 | Invention patent application withdrawn after publication |