CN107540407A - A kind of impregnation technology of polyflon - Google Patents
A kind of impregnation technology of polyflon Download PDFInfo
- Publication number
- CN107540407A CN107540407A CN201710742990.XA CN201710742990A CN107540407A CN 107540407 A CN107540407 A CN 107540407A CN 201710742990 A CN201710742990 A CN 201710742990A CN 107540407 A CN107540407 A CN 107540407A
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- CN
- China
- Prior art keywords
- solidification
- polyflon
- kept
- hours
- impregnation technology
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- 229920006361 Polyflon Polymers 0.000 title claims abstract description 12
- 238000005516 engineering process Methods 0.000 title claims abstract description 12
- 238000005470 impregnation Methods 0.000 title claims abstract description 12
- 238000007711 solidification Methods 0.000 claims abstract description 12
- 230000008023 solidification Effects 0.000 claims abstract description 12
- 238000007598 dipping method Methods 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 11
- 229920005989 resin Polymers 0.000 claims abstract description 7
- 239000011347 resin Substances 0.000 claims abstract description 7
- 238000010792 warming Methods 0.000 claims abstract description 7
- 238000010438 heat treatment Methods 0.000 claims abstract 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 7
- 229910002804 graphite Inorganic materials 0.000 claims description 7
- 239000010439 graphite Substances 0.000 claims description 7
- 239000000428 dust Substances 0.000 claims description 6
- 239000012535 impurity Substances 0.000 claims description 3
- 238000001035 drying Methods 0.000 abstract description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 4
- 238000005457 optimization Methods 0.000 description 4
- 239000005011 phenolic resin Substances 0.000 description 4
- 229920001568 phenolic resin Polymers 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000003204 osmotic effect Effects 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000011282 treatment Methods 0.000 description 2
- 229910021383 artificial graphite Inorganic materials 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
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- Battery Electrode And Active Subsutance (AREA)
Abstract
The invention discloses a kind of impregnation technology of polyflon, impregnated including dedusting drying, dipping, solidification, second and solidify several steps for the second time, described dipping refers to tetrafluoro resin being added in steeper, it is forced into 0.5Mpa, and kept for 2 hours, solidification refers to be warming up to 360 DEG C, and constantly circulation pressurization, pressure is set to be maintained at 40N, solidification actual temp control process is：Temperature is slowly increased to 100 DEG C first, secondly 10 DEG C of each hour heating, is finally warming up to 360 DEG C and is kept for 5 hours.
Description
Technical field
Invention is related to a kind of graphite impregnation technology field, and in particular to a kind of polytetrafluoroethylene (PTFE) tree
Fat impregnation technology.
Background technology
Traditional Delanium impregnation technology domestic at present be using impregnate kettle artificial graphite electrode is vacuumized plus
The steps such as pressure, dipping, cooling, drying are handled, and generally carry out impregnation using phenolic resin at present, because of phenolic resin
Attribute itself limit the degree of graphite products acid-fast alkali-proof, so as to limit application.
The content of the invention
The technical solution adopted for the present invention to solve the technical problems is：A kind of impregnation technology of polyflon,
It is characterized in that：Comprise the following steps：
Dedusting is dried：Graphite electrode is subjected to dust removal process, goes the removal of impurity and dust, and be dried to anhydrous state；
Dipping：Tetrafluoro resin is added in steeper, is forced into 0.4Mpa, and is kept for 2 hours,；
Solidification：360 DEG C, and constantly circulation pressurization are warming up to, pressure is maintained at 40N；
Second of dipping：Tetrafluoro resin is added in steeper again；
Solidification：It is identical with step (3).
As optimization, 0.4Mpa is evacuated to described in step (2) and step (4), and kept for 2 hours.
As optimization, step (3) and step (5) the solidification detailed process are：Temperature is slowly increased to 100 DEG C first,
Secondly each hour heats up 10 DEG C, is finally warming up to 360 DEG C and is kept for 5 hours.
The beneficial effects of the invention are as follows：The present invention substitutes traditional phenolic resin by using polyflon and soaked
Stain technique, due to the inviscid speciality of polyflon itself so that graphite pores can be completely penetrated in dipping process
In, then by pressurized treatments so as to improve osmotic effect and high-temperature stability, highest is resistant to 400 DEG C of high temperature, so as to widen
The scope of application of product.
Embodiment
Specific embodiment：A kind of impregnation technology of polyflon, it is characterised in that：Comprise the following steps：
Dedusting is dried：Graphite electrode is subjected to dust removal process, goes the removal of impurity and dust, and be dried to anhydrous state；
Dipping：Tetrafluoro resin is added in steeper, is forced into 0.4Mpa, and is kept for 2 hours,；
Solidification：360 DEG C, and constantly circulation pressurization are warming up to, pressure is maintained at 40N；
Second of dipping：Tetrafluoro resin is added in steeper again；
Solidification：It is identical with step (3).
As optimization, 0.4Mpa is evacuated to described in step (2) and step (4), and kept for 2 hours.
As optimization, step (3) and step (5) the solidification detailed process are：Temperature is slowly increased to 100 DEG C first,
Secondly each hour heats up 10 DEG C, is finally warming up to 360 DEG C and is kept for 5 hours.
The beneficial effects of the invention are as follows：The present invention substitutes traditional phenolic resin by using polyflon and soaked
Stain technique, due to the inviscid speciality of polyflon itself so that graphite pores can be completely penetrated in dipping process
In, then by pressurized treatments so as to improve osmotic effect and high-temperature stability, highest is resistant to 400 DEG C of high temperature, so as to widen
The scope of application of product.
Obviously, above-described embodiment is only intended to clearly illustrate example, and is not the restriction to embodiment.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of change or
Change.There is no necessity and possibility to exhaust all the enbodiments.And the obvious change thus extended out or
Among changing still in the protection domain of the invention.
Claims (3)
- A kind of 1. impregnation technology of polyflon, it is characterised in that：Comprise the following steps：Dedusting is dried：Graphite electrode is subjected to dust removal process, goes the removal of impurity and dust, and be dried to anhydrous state；Dipping：Tetrafluoro resin is added in steeper, is forced into 0.4Mpa, and is kept for 2 hours,；Solidification：360 DEG C, and constantly circulation pressurization are warming up to, pressure is maintained at 40N；Second of dipping：Tetrafluoro resin is added in steeper again；Solidification：It is identical with step (3).
- A kind of 2. impregnation technology of polyflon according to claim 1, it is characterised in that：Step (2) and step Suddenly (4) are described is evacuated to 0.4Mpa, and is kept for 2 hours.
- A kind of 3. impregnation technology of polyflon according to claim 1, it is characterised in that：Step (3) and step Suddenly (5) described solidification detailed process is：Temperature is slowly increased to 100 DEG C first, secondly 10 DEG C of each hour heating, finally rises Temperature is kept for 5 hours to 360 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710742990.XA CN107540407A (en) | 2017-08-25 | 2017-08-25 | A kind of impregnation technology of polyflon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710742990.XA CN107540407A (en) | 2017-08-25 | 2017-08-25 | A kind of impregnation technology of polyflon |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107540407A true CN107540407A (en) | 2018-01-05 |
Family
ID=60958838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710742990.XA Withdrawn CN107540407A (en) | 2017-08-25 | 2017-08-25 | A kind of impregnation technology of polyflon |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107540407A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104788122A (en) * | 2015-04-09 | 2015-07-22 | 南通晨光石墨设备有限公司 | Impregnation technology of PTFE (polytetrafluoroethylene) resin |
-
2017
- 2017-08-25 CN CN201710742990.XA patent/CN107540407A/en not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104788122A (en) * | 2015-04-09 | 2015-07-22 | 南通晨光石墨设备有限公司 | Impregnation technology of PTFE (polytetrafluoroethylene) resin |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180105 |
|
| WW01 | Invention patent application withdrawn after publication |