CN1558131A - Asphalt graphite pipeline and production method thereof - Google Patents
Asphalt graphite pipeline and production method thereof Download PDFInfo
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- CN1558131A CN1558131A CNA2004100139839A CN200410013983A CN1558131A CN 1558131 A CN1558131 A CN 1558131A CN A2004100139839 A CNA2004100139839 A CN A2004100139839A CN 200410013983 A CN200410013983 A CN 200410013983A CN 1558131 A CN1558131 A CN 1558131A
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- pitch
- tubing
- carbon black
- stearic acid
- plumbago
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Abstract
The asphalt-graphite pipe is produced through making pipe wall with asphalt, graphite powder, stearic acid and carbon black powder as main material and soaking the pipe wall with resin and/or asphalt. The production process includes extrusion to form, high temperature carbonization, soaking, middle temperature treatment and other steps. The product has good ductibility, linear expansion coefficient as low as one fifth of common graphite pipe, high heat resistance, superior anticorrosive property, and simple production process.
Description
Technical field:
The present invention relates to a kind of tubing, mainly is the tubing that a kind of graphite chemical industry is used.
Background technique:
The existing tubing such as graphite heater, vaporizer, reboiler that are used for, all there is undesirable part in aspects such as the resistance to high temperature of material, ductility, corrosion resistance, have influenced the working life and the quality of product.
Summary of the invention:
The object of the present invention is to provide the pitch graphite tubing and the production method of a kind of heat resistance, good corrosion resistance.
Technical solution of the present invention is:
A kind of pitch graphite tubing, its feature: comprise that by pitch, plumbago, stearic acid, carbon black powder be the tube wall that raw material is made, infiltration has resin and/or pitch composition in the material void of above-mentioned tube wall.
The part by weight of above-mentioned raw materials pitch, plumbago, stearic acid, carbon black powder is: pitch: plumbago: stearic acid: carbon black powder=55～70: 25～35: 1～3: 2～8.
The part by weight of above-mentioned each material component is: pitch: plumbago: stearic acid: carbon black powder=55～65: 28～35: 1～3: 3～6.
Described resin is phenolic resin or furan.
A kind of production method of pitch graphite tubing, its feature: comprise the following steps: successively
1. extrusion modling: pitch, plumbago, stearic acid, carbon black powder are mixed the back extrusion modling;
2. high temperature cabonization:, make bitumencarb change into type with the tubing of moulding calcination process 30～70 days under 1000～1300 ℃ of high temperature;
3. flood: will put into resin and/or pitch immersion treatment through the tubing of above-mentioned carbonization treatment;
4. temperature is handled in: will handle 3～10 days down at 280 ℃ ± 10 ℃ through the tubing of above-mentioned immersion treatment, and promptly get product.
The part by weight of above-mentioned each material component is: pitch: plumbago: stearic acid: carbon black powder=55～70: 25～35: 1～3: 2～8.
The part by weight of described each material component is a pitch: plumbago: stearic acid: carbon black powder=55～65: 28～35: 1～3: 3～6.
Described resin is phenolic resin or furan.
The ductility of product of the present invention is good, and its linear expansion coeffcient is 1/5th of a common graphite pipe, so good heat resistance; Decay resistance is also more superior than the common graphite pipe in addition; Production method is simple, easy to operate.
The invention will be further described below in conjunction with embodiment.
Embodiment:
Embodiment 1:
1. extrusion modling: pitch, plumbago, stearic acid, carbon black powder are pressed pitch: plumbago: stearic acid: carbon black powder=55: 30: 2: 6 part by weight mixes the back extrusion modling;
2. high temperature cabonization: the tubing calcination process 30～70 days (can be 30,40,50,60,70 days) under 1000～1300 ℃ of (1000,1100,1150,1200,1250,1300 ℃ of examples) high temperature with moulding makes bitumencarb change into type;
3. dipping: will put into phenolic resin (or furan, pitch) immersion treatment 1～10 day (example 1,3,5,7,10 days) through the tubing of above-mentioned carbonization treatment;
4. temperature is handled in: will handle 3～10 days (example 3,5,7,8,10 days) down at 280 ℃ ± 10 ℃ through the tubing of above-mentioned immersion treatment, and promptly get product.
Embodiment 2:
The step 1. part by weight of medium pitch, plumbago, stearic acid, carbon black powder is: pitch: plumbago: stearic acid: carbon black powder=61: 25: 3: 3 (or 70: 35: 1: 8,65: 28: 3: 5).
Step 3. in tubing after carbonization treatment put into phenolic resin (or furan) and asphalt mixture immersion treatment 1～10 day (example 1,3,5,7,10 days), both part by weight can be phenolic resin (or furan) in phenolic resin (or furan) and the asphalt mixture: pitch=1: 1 or 1: 2,1: 3,2: 1,3: 1.All the other are with embodiment 1.
Claims (8)
1, a kind of pitch graphite tubing is characterized in that: comprise that by pitch, plumbago, stearic acid, carbon black powder be the tube wall that raw material is made, infiltration has resin and/or pitch composition in the material void of above-mentioned tube wall.
2, pitch graphite tubing according to claim 1, it is characterized in that: the part by weight of material asphalt, plumbago, stearic acid, carbon black powder is: pitch: plumbago: stearic acid: carbon black powder=55～70: 25～35: 1～3: 2～8.
3, pitch graphite tubing according to claim 2, it is characterized in that: the part by weight of each material component is: pitch: plumbago: stearic acid: carbon black powder=55～65: 28～35: 1～3: 3～6.
4, according to claim 1,2 or 3 described pitch graphite tubing, it is characterized in that: resin is phenolic resin or furan.
5, the production method of the described pitch graphite of a kind of claim 1 tubing is characterized in that: comprise the following steps: successively
1. extrusion modling: pitch, plumbago, stearic acid, carbon black powder are mixed the back extrusion modling;
2. high temperature cabonization:, make bitumencarb change into type with the tubing of moulding calcination process 30～70 days under 1000～1300 ℃ of high temperature;
3. flood: will put into resin and/or pitch immersion treatment through the tubing of above-mentioned carbonization treatment;
4. temperature is handled in: will handle 3～10 days down at 280 ℃ ± 10 ℃ through the tubing of above-mentioned immersion treatment, and promptly get product.
6, the production method of pitch graphite tubing according to claim 5, it is characterized in that: the part by weight of each material component is: pitch: plumbago: stearic acid: carbon black powder=55～70: 25～35: 1～3: 2～8.
7, the production method of pitch graphite tubing according to claim 6 is characterized in that: the part by weight of each material component is a pitch: plumbago: stearic acid: carbon black powder=55～65: 28～35: 1～3: 3～6.
8, according to the production method of claim 5,6 or 7 described pitch graphite tubing, it is characterized in that: resin is phenolic resin or furan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410013983 CN1261710C (en) | 2004-01-18 | 2004-01-18 | Asphalt graphite pipeline and production method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410013983 CN1261710C (en) | 2004-01-18 | 2004-01-18 | Asphalt graphite pipeline and production method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1558131A true CN1558131A (en) | 2004-12-29 |
| CN1261710C CN1261710C (en) | 2006-06-28 |
Family
ID=34351227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410013983 Expired - Fee Related CN1261710C (en) | 2004-01-18 | 2004-01-18 | Asphalt graphite pipeline and production method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1261710C (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102502600A (en) * | 2011-10-27 | 2012-06-20 | 南通三圣石墨设备科技股份有限公司 | Pyrographite tube and method for producing same |
| CN102745991A (en) * | 2012-06-26 | 2012-10-24 | 宁波东联密封件有限公司 | Molded sintered graphite sealing ring and preparation method thereof |
| CN103292060A (en) * | 2013-06-26 | 2013-09-11 | 南通星球石墨设备有限公司 | Graphite pipe and manufacturing method |
| CN104002460A (en) * | 2014-05-13 | 2014-08-27 | 龚孝祥 | Graphite pipe manufacturing method for eliminating extruding internal stress and microcracks |
| CN106830937A (en) * | 2016-12-09 | 2017-06-13 | 甘洛鑫晶源新材料有限公司 | Graphite-pipe production technology is used in a kind of fine and close ventilation |
| CN110628169A (en) * | 2019-07-04 | 2019-12-31 | 南通星球石墨设备有限公司 | Furan resin graphite tube and preparation method thereof |
| CN115403982A (en) * | 2022-09-06 | 2022-11-29 | 江苏城乡建设职业学院 | Graphite tube, tube type heat exchanger and preparation method |
-
2004
- 2004-01-18 CN CN 200410013983 patent/CN1261710C/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102502600A (en) * | 2011-10-27 | 2012-06-20 | 南通三圣石墨设备科技股份有限公司 | Pyrographite tube and method for producing same |
| CN102745991A (en) * | 2012-06-26 | 2012-10-24 | 宁波东联密封件有限公司 | Molded sintered graphite sealing ring and preparation method thereof |
| CN102745991B (en) * | 2012-06-26 | 2014-08-20 | 宁波东联密封件有限公司 | Molded sintered graphite sealing ring and preparation method thereof |
| CN103292060A (en) * | 2013-06-26 | 2013-09-11 | 南通星球石墨设备有限公司 | Graphite pipe and manufacturing method |
| CN104002460A (en) * | 2014-05-13 | 2014-08-27 | 龚孝祥 | Graphite pipe manufacturing method for eliminating extruding internal stress and microcracks |
| CN106830937A (en) * | 2016-12-09 | 2017-06-13 | 甘洛鑫晶源新材料有限公司 | Graphite-pipe production technology is used in a kind of fine and close ventilation |
| CN110628169A (en) * | 2019-07-04 | 2019-12-31 | 南通星球石墨设备有限公司 | Furan resin graphite tube and preparation method thereof |
| CN115403982A (en) * | 2022-09-06 | 2022-11-29 | 江苏城乡建设职业学院 | Graphite tube, tube type heat exchanger and preparation method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1261710C (en) | 2006-06-28 |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060628 Termination date: 20140118 |