JPS6486516A - Heating furnace - Google Patents
Heating furnaceInfo
- Publication number
- JPS6486516A JPS6486516A JP24249887A JP24249887A JPS6486516A JP S6486516 A JPS6486516 A JP S6486516A JP 24249887 A JP24249887 A JP 24249887A JP 24249887 A JP24249887 A JP 24249887A JP S6486516 A JPS6486516 A JP S6486516A
- Authority
- JP
- Japan
- Prior art keywords
- phase
- heater
- currents
- secondary side
- phase transformer
- 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
Landscapes
- Chemical Vapour Deposition (AREA)
Abstract
PURPOSE:To reduce currents that flow through a cable connecting an intermediate terminal for a heater and a three-phase transformer, and to use the cable having a small sectional area by shifting the phase of currents that flow in a center zone or end zones on both sides of the heater by 180 deg.. CONSTITUTION:First and second intermediate terminals 3, 4 are connect ed respectively at one ends of first and third secondary side windings 13, 15 for a three phase transformer 7, and connected to a second secondary side winding 14 for the three-phase transformer 7 while phase is shifted from conventional devices-for example, phase is shifted at 180 deg. in polarity. Both ends 5, 6 of a heater 2 are connected at the other ends of the first and third secondary side windings 13, 15. Accordingly, the first and second intermediate terminals 3, 4 are connected to the second secondary side winding 14 for the three-phase transformer 7 while polarity is reversed from conventional devices, the phase of currents IB flowed through a center zone B in the heater 2 is shifted at 180 deg.-that is, the phase is inverted, thus reducing the magnitude of currents 11, 12 flowed through cables 11, 12 connecting the first and second intermediate terminals 3, 4 and the three-phase transformer 7 as shown in vector diagrams.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24249887A JPH0738379B2 (en) | 1987-09-29 | 1987-09-29 | heating furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24249887A JPH0738379B2 (en) | 1987-09-29 | 1987-09-29 | heating furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6486516A true JPS6486516A (en) | 1989-03-31 |
| JPH0738379B2 JPH0738379B2 (en) | 1995-04-26 |
Family
ID=17089984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24249887A Expired - Lifetime JPH0738379B2 (en) | 1987-09-29 | 1987-09-29 | heating furnace |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0738379B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010098427A1 (en) * | 2009-02-27 | 2010-09-02 | 株式会社アルバック | Vacuum heating device, vacuum heat treatment method |
-
1987
- 1987-09-29 JP JP24249887A patent/JPH0738379B2/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010098427A1 (en) * | 2009-02-27 | 2010-09-02 | 株式会社アルバック | Vacuum heating device, vacuum heat treatment method |
| JP5202723B2 (en) * | 2009-02-27 | 2013-06-05 | 株式会社アルバック | Vacuum heating device, vacuum heat treatment method |
| US8693854B2 (en) | 2009-02-27 | 2014-04-08 | Ulvac, Inc. | Vacuum heating device and vacuum heat treatment method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0738379B2 (en) | 1995-04-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 (prs date is renewal date of database) |
Year of fee payment: 13 Free format text: PAYMENT UNTIL: 20080426 |