JPS6418974A - Production of heat-exchanger made of sintered silicon carbide - Google Patents
Production of heat-exchanger made of sintered silicon carbideInfo
- Publication number
- JPS6418974A JPS6418974A JP62175527A JP17552787A JPS6418974A JP S6418974 A JPS6418974 A JP S6418974A JP 62175527 A JP62175527 A JP 62175527A JP 17552787 A JP17552787 A JP 17552787A JP S6418974 A JPS6418974 A JP S6418974A
- Authority
- JP
- Japan
- Prior art keywords
- heat
- silicon carbide
- sintered silicon
- exchanger
- hno3
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
- F28F21/04—Constructions of heat-exchange apparatus characterised by the selection of particular materials of ceramic; of concrete; of natural stone
Abstract
PURPOSE:To obtain a heat-exchanger having excellent thermal conductivity and high strength and corrosion resistance, by adding B, C or Al2O3 to fine powder of silicon carbide, forming and baking the mixture, again baking in HCl or Cl2, heat-treating in air and washing in HF. CONSTITUTION:At least one kind of B, C or Al2O3 is added as a sintering assistant to fine powder of silicon carbide and the obtained mixture is dried, formed in the form of a heat-exchanger and baked at 2,000-2,200 deg.C in an inert atmosphere. The objective heat-exchanger is produced by (1) heating and baking the above product at 1,200-1,800 deg.C in HCl and/or Cl2 gas atmosphere, (2) heat-treating the obtained sintered silicon carbide at 400-1,000 deg.C in air and (3) washing the obtained sintered silicon carbide with HF and HF-HNO3. The addition of the above sintering assistant is carried out because of the stability of the assistant against a chemical agent such as HCl, HF, HNO3 and H2SO4. The washing of the product in HF and HF-HNO3 in the step 3 is performed to remove Al2O3 or B existing in the sintered silicon carbide in a form without forming a solid solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62175527A JPS6418974A (en) | 1987-07-13 | 1987-07-13 | Production of heat-exchanger made of sintered silicon carbide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62175527A JPS6418974A (en) | 1987-07-13 | 1987-07-13 | Production of heat-exchanger made of sintered silicon carbide |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6418974A true JPS6418974A (en) | 1989-01-23 |
| JPH0463829B2 JPH0463829B2 (en) | 1992-10-13 |
Family
ID=15997623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62175527A Granted JPS6418974A (en) | 1987-07-13 | 1987-07-13 | Production of heat-exchanger made of sintered silicon carbide |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6418974A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994001529A1 (en) * | 1992-07-01 | 1994-01-20 | Keiichi Katoh | Ceramic heating/cooling device |
| AU665657B2 (en) * | 1992-07-01 | 1996-01-11 | Keiichi Katoh | Ceramic device for heating or cooling |
| EP1217322A2 (en) * | 2000-12-21 | 2002-06-26 | Fujikoshi Machinery Corporation | Heat Exchanger |
| JP2007537128A (en) * | 2004-05-14 | 2007-12-20 | ポコ グラファイト、インコーポレイテッド | Heat treatment of silicon carbide |
| JP2008064382A (en) * | 2006-09-07 | 2008-03-21 | Orion Mach Co Ltd | Heat exchanger for chemical liquid |
-
1987
- 1987-07-13 JP JP62175527A patent/JPS6418974A/en active Granted
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994001529A1 (en) * | 1992-07-01 | 1994-01-20 | Keiichi Katoh | Ceramic heating/cooling device |
| EP0603411A1 (en) * | 1992-07-01 | 1994-06-29 | KATOH, Keiichi | Ceramic heating/cooling device |
| AU665657B2 (en) * | 1992-07-01 | 1996-01-11 | Keiichi Katoh | Ceramic device for heating or cooling |
| EP0603411B1 (en) * | 1992-07-01 | 1998-08-19 | KATOH, Keiichi | Ceramic heating/cooling device |
| KR100346861B1 (en) * | 1992-07-01 | 2003-01-08 | 슈우지 우에다 | Ceramic Cooler |
| EP1217322A2 (en) * | 2000-12-21 | 2002-06-26 | Fujikoshi Machinery Corporation | Heat Exchanger |
| US7163053B2 (en) | 2000-12-21 | 2007-01-16 | Fujikoshi Machinery Corp. | Heat exchanger |
| JP2007537128A (en) * | 2004-05-14 | 2007-12-20 | ポコ グラファイト、インコーポレイテッド | Heat treatment of silicon carbide |
| JP2008064382A (en) * | 2006-09-07 | 2008-03-21 | Orion Mach Co Ltd | Heat exchanger for chemical liquid |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0463829B2 (en) | 1992-10-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
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| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| EXPY | Cancellation because of completion of term | ||
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20071013 Year of fee payment: 15 |