CN111186119A - High-heat-conductivity high-wear-resistance PTFE pipe sizing sleeve - Google Patents
High-heat-conductivity high-wear-resistance PTFE pipe sizing sleeve Download PDFInfo
- Publication number
- CN111186119A CN111186119A CN201911362538.6A CN201911362538A CN111186119A CN 111186119 A CN111186119 A CN 111186119A CN 201911362538 A CN201911362538 A CN 201911362538A CN 111186119 A CN111186119 A CN 111186119A
- Authority
- CN
- China
- Prior art keywords
- parts
- ptfe
- modified material
- sizing sleeve
- copper powder
- 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
- 229920001343 polytetrafluoroethylene Polymers 0.000 title claims abstract description 61
- 239000004810 polytetrafluoroethylene Substances 0.000 title claims abstract description 61
- 238000004513 sizing Methods 0.000 title claims abstract description 33
- 239000000463 material Substances 0.000 claims abstract description 35
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 32
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 32
- 239000010439 graphite Substances 0.000 claims abstract description 32
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 21
- 238000005245 sintering Methods 0.000 claims abstract description 20
- 239000000835 fiber Substances 0.000 claims abstract description 16
- 239000011347 resin Substances 0.000 claims abstract description 15
- 229920005989 resin Polymers 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 13
- -1 polytetrafluoroethylene Polymers 0.000 claims abstract description 13
- 238000004519 manufacturing process Methods 0.000 description 9
- 229910000881 Cu alloy Inorganic materials 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 239000000956 alloy Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
Classifications
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/04—Ingredients characterised by their shape and organic or inorganic ingredients
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/06—Elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2023/00—Tubular articles
- B29L2023/22—Tubes or pipes, i.e. rigid
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/085—Copper
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
Abstract
The invention discloses a high-heat-conductivity high-wear-resistance PTFE pipe sizing sleeve, which comprises the following steps: a) sintering the PTFE modified material at high temperature to prepare a blank piece; b) mechanically finishing the blank in the step a) to finally prepare a finished product, wherein the PTFE modified material comprises the following components: the PTFE modified material is characterized by comprising polytetrafluoroethylene resin, copper powder, high-purity graphite and graphite fibers, wherein the sintering process temperature of the PTFE modified material is 360-380 ℃, and the sintering time is 8-10 hours.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of pipe sizing sleeves, in particular to the technical field of a high-heat-conductivity high-wear-resistance PTFE pipe sizing sleeve.
[ background of the invention ]
In the extrusion production process of plastic pipes, cooling and sizing are the most critical step, and a sizing sleeve is the most important forming die in the step and directly determines the size, appearance and internal quality of the pipes.
The sizing sleeve special for the pipe mainly comprises a sizing sleeve inlet, a straight section, a vacuum groove and a connecting flange, which are designed and manufactured according to the size of the outer diameter and the wall thickness of the pipe; the vacuum grooves are arranged on the straight section of the sizing sleeve, the groove width is generally 1.0-5.0 mm, the number of the vacuum grooves is determined according to the distance from the sizing sleeve opening end, and the vacuum grooves are generally densely arranged near the sizing sleeve opening end.
The sizing sleeve is generally integrally processed and manufactured by adopting a copper alloy material, and the copper alloy material has the outstanding advantages of high heat transfer rate, high heat conductivity coefficient, easiness in processing, small surface roughness after processing and the like; however, copper alloys have relatively low surface hardness, are easily worn, and have short service life, and the product size gradually increases after long-term use, and the manufacturing cost is increased by frequent replacement.
[ summary of the invention ]
The invention aims to solve the problems in the prior art, and provides a high-heat-conductivity high-wear-resistance PTFE pipe sizing sleeve which is not easy to wear, long in service life, low in manufacturing cost and high in heat conduction speed.
In order to achieve the purpose, the invention provides a high-heat-conductivity high-wear-resistance PTFE pipe sizing sleeve, which comprises the following steps:
a) sintering the PTFE modified material at high temperature to prepare a blank piece;
b) mechanically finishing the blank in the step a) to obtain a finished product,
the PTFE modified material comprises the following components: polytetrafluoroethylene resin, copper powder, high-purity graphite and graphite fiber,
the sintering process temperature of the PTFE modified material is 360-380 ℃, and the sintering time is 8-10 hours.
Preferably, the PTFE modified material comprises the following components in percentage by mass: polytetrafluoroethylene resin: 55-65 parts of copper powder: 6-15 parts of high-purity graphite: 12-32 parts of graphite fiber: 6-12 parts.
Preferably, the PTFE modified material comprises the following components in parts by mass: polytetrafluoroethylene resin: 60 parts of copper powder: 10 parts of high-purity graphite: 20 parts of graphite fiber: 9 parts.
Preferably, the PTFE modified material comprises the following components in percentage by mass: polytetrafluoroethylene resin: 62-66 parts of copper powder: 12-13 parts of high-purity graphite: 17-19 parts of graphite fiber: 5-6 parts.
Preferably, the PTFE modified material comprises the following components in percentage by mass: polytetrafluoroethylene resin: 64 parts of copper powder: 12.5 parts of high-purity graphite: 18 parts and graphite fiber: 5.5 parts.
Preferably, the sintering process temperature of the PTFE modified material is 370 ℃, and the sintering time is 9 hours.
Preferably, the mesh number of the copper powder is not less than 400 meshes.
The invention has the beneficial effects that: 1. the method adopts a two-step method for production, and selects general equipment for manufacturing; the PTFE modified material is sintered at high temperature to form a sizing sleeve blank, and then is machined to form a qualified product; the equipment, the die and the process required by high-temperature sintering and mechanical processing are very mature, the sizing sleeve is convenient to process, and the overall strength, the internal quality and the appearance quality are guaranteed; the process technology is mature, and the production and the manufacture are convenient.
PTFE resin is one of the materials with the minimum surface friction coefficient in the existing known materials, hardly adheres to all substances, has extremely small dynamic and static friction coefficients for any material, and has a long-term use temperature of more than 325 ℃ and a melting temperature of more than 100 ℃ higher than that of common plastics; meanwhile, PTFE is a high molecular material, and has long molecular chain, large molecular weight and self abrasion resistance; the reinforcing material graphite fiber and the filling material high-purity graphite also have self-lubricating property; the PTFE pipe sizing sleeve mainly made of the components has very small friction coefficient on melts of common pipe materials such as PVC, HDPE and PP and the like and the pipe after complete cooling, the wear to the sizing sleeve is small in the production process of the pipe, and the service life of the sizing sleeve can be greatly prolonged.
3, the PTFE resin has poor self heat conductivity, and the heat conductivity coefficient of the PTFE modified material reaches 13-54W/m.K by adding high-purity graphite, fine copper powder, graphite fiber and other high-heat-conductivity materials, particularly after the high-purity graphite and fine copper powder disperse phases are connected together by the graphite fiber; the heat conductivity of the PTFE pipe sizing sleeve is greatly improved, the level of a metal material is reached, and the requirement of rapid cooling in the use process of the sizing sleeve is met.
[ detailed description ] embodiments
Example 1
The invention relates to a high-heat-conductivity high-wear-resistance PTFE pipe sizing sleeve, which comprises the following steps:
a) sintering the PTFE modified material at high temperature to prepare a blank piece;
b) mechanically finishing the blank in the step a) to obtain a finished product,
the PTFE modified material comprises the following components in parts by mass: polytetrafluoroethylene resin: 60 parts of copper powder: 10 parts of high-purity graphite: 20 parts of graphite fiber: 9 parts of copper powder, wherein the mesh number of the copper powder is 400 meshes.
The sintering process temperature of the PTFE modified material is 370 ℃, and the sintering time is 9 hours.
The manufactured sizing sleeve has the advantages of high heat conductivity coefficient, high heat conduction speed, high wear resistance, high strength and the like.
Example 2
The invention relates to a high-heat-conductivity high-wear-resistance PTFE pipe sizing sleeve, which comprises the following steps:
a) sintering the PTFE modified material at high temperature to prepare a blank piece;
b) mechanically finishing the blank in the step a) to obtain a finished product,
the PTFE modified material comprises the following components in parts by mass: polytetrafluoroethylene resin: 64 parts of copper powder: 12.5 parts of high-purity graphite: 18 parts and graphite fiber: 5.5 parts of copper powder, wherein the mesh number of the copper powder is 400 meshes.
The sintering process temperature of the PTFE modified material is 370 ℃, and the sintering time is 9 hours.
The manufactured sizing sleeve has the advantages of high heat conductivity coefficient, high heat conduction speed, high wear resistance, high strength and the like.
The above embodiments are illustrative of the present invention, and are not intended to limit the present invention, and any simple modifications of the present invention are within the scope of the present invention.
Claims (7)
1. The utility model provides a high wear-resisting PTFE tubular product sizing cover of high heat conduction which characterized in that: the method comprises the following steps:
a) sintering the PTFE modified material at high temperature to prepare a blank piece;
b) mechanically finishing the blank in the step a) to obtain a finished product,
the PTFE modified material comprises the following components: polytetrafluoroethylene resin, copper powder, high-purity graphite and graphite fiber,
the sintering process temperature of the PTFE modified material is 360-380 ℃, and the sintering time is 8-10 hours.
2. The PTFE pipe sizing sleeve with high thermal conductivity and high wear resistance as claimed in claim 1, wherein: the PTFE modified material comprises the following components in percentage by mass: polytetrafluoroethylene resin: 55-65 parts of copper powder: 6-15 parts of high-purity graphite: 12-32 parts of graphite fiber: 6-12 parts.
3. The PTFE pipe sizing sleeve with high thermal conductivity and high wear resistance as claimed in claim 2, wherein: the PTFE modified material comprises the following components in parts by mass: polytetrafluoroethylene resin: 60 parts of copper powder: 10 parts of high-purity graphite: 20 parts of graphite fiber: 9 parts.
4. The PTFE pipe sizing sleeve with high thermal conductivity and high wear resistance as claimed in claim 1, wherein: the PTFE modified material comprises the following components in percentage by mass: polytetrafluoroethylene resin: 62-66 parts of copper powder: 12-13 parts of high-purity graphite: 17-19 parts of graphite fiber: 5-6 parts.
5. The PTFE pipe sizing sleeve with high thermal conductivity and high wear resistance as claimed in claim 4, wherein: the PTFE modified material comprises the following components in percentage by mass: polytetrafluoroethylene resin: 64 parts of copper powder: 12.5 parts of high-purity graphite: 18 parts and graphite fiber: 5.5 parts.
6. The PTFE pipe sizing sleeve with high thermal conductivity and high wear resistance as claimed in claim 1, wherein: the sintering process temperature of the PTFE modified material is 370 ℃, and the sintering time is 9 hours.
7. The PTFE pipe sizing sleeve with high thermal conductivity and high wear resistance as claimed in any one of claims 1 to 6, wherein: the mesh number of the copper powder is not less than 400 meshes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911362538.6A CN111186119A (en) | 2019-12-26 | 2019-12-26 | High-heat-conductivity high-wear-resistance PTFE pipe sizing sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911362538.6A CN111186119A (en) | 2019-12-26 | 2019-12-26 | High-heat-conductivity high-wear-resistance PTFE pipe sizing sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111186119A true CN111186119A (en) | 2020-05-22 |
Family
ID=70703349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911362538.6A Pending CN111186119A (en) | 2019-12-26 | 2019-12-26 | High-heat-conductivity high-wear-resistance PTFE pipe sizing sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111186119A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102199330A (en) * | 2010-12-24 | 2011-09-28 | 东莞市新志密封技术有限公司 | Method for preparing modified Teflon composite material and its product |
| CN104558986A (en) * | 2014-12-28 | 2015-04-29 | 贵州祥宇泵阀制造有限公司 | Modified PTFE and preparation method thereof |
-
2019
- 2019-12-26 CN CN201911362538.6A patent/CN111186119A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102199330A (en) * | 2010-12-24 | 2011-09-28 | 东莞市新志密封技术有限公司 | Method for preparing modified Teflon composite material and its product |
| CN104558986A (en) * | 2014-12-28 | 2015-04-29 | 贵州祥宇泵阀制造有限公司 | Modified PTFE and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 姚树镇: "《玻璃钢船艇建造技术》", 30 November 2017, 上海交通大学出版社 * |
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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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200522 |
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| RJ01 | Rejection of invention patent application after publication |