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101. 发明专利

GB704960A Improvements to electric induction furnaces 未知
公开(公告)号：GB704960A
公开(公告)日：1954-03-03
申请号：GB2669250
申请日：1950-11-01
申请人： HENRY WIGGIN AND COMPANY LTD
发明人： KEMPSON HARRY THOMAS
IPC分类号： H05B6/24 , H05B6/28
摘要： 704,960. Induction furnaces; alarms. WIGGIN & CO., Ltd., H. Nov. 1, 1951 [Nov. 1, 1950], No. 26692/50. Class 39 (3) An induction furnace has a safety device comprising two sets of conductors 12, 14 incorporated in a flexible screen of heatresisting material mounted in the furnace wall inside the induction coil, the two sets of conductors being normally insulated from one another and from the coil, the conductors being so arranged that molten metal leaking through the wall will, before reaching the coil, form a bridge between a conductor 12 and a conductor 14, thereby closing a circuit to actuate an alarm and preferably cut off current supply to the coil. The conductors comprise parallel vertical wires 12, 14 woven into a flexible screen with asbestos thread 16 and connected alternately to bus bars 17. 18. The screen is insulated from the coil by a ring of mica. When molten metal bridges the wires 12, 14 a circuit is completed through a transformer 20 and the alarm 22 is energized. The circuit includes a choke 24 and condenser 26 so that it is not energized by the H.F. current.

102. 发明专利

GB519097A Improvements in or relating to high frequency electric induction melting furnaces 未知
公开(公告)号：GB519097A
公开(公告)日：1940-03-15
申请号：GB3104938
申请日：1938-10-27
申请人： KOHLE UND EISENFORSCHUNG GMBH
IPC分类号： H05B6/28
摘要： 519,097. Electric induction furnaces. KOHLEUND EISENFORSCHUNG GES. Oct. 27, 1938, No. 31049. Convention date, Nov. 19, 1937. [Class 39 (iii)] [Also in Group XIII] A high frequency electric induction furnace 1 has a hollow electric heating coil 2, embedded in its wall, through which cooling water is passed. On an excessive rise of temperature differential thermocouples 6, in the cooling water inlet and 'exit respectively, operate an electromagnet 7 to close a switch 8 in the circuit of a second electromagnet which releases a spring controlled trip lever to open the switch 5 of the electric supply to the coil 2. Alternatively, thermometers, resistance coils or bimetallic strips may. replace the thermocouples. In the Specification as open to inspection under Sect. 91 is described an arrangement in which a single thermocouple, only, is provided in the exit from the cooling water tube. This subject-matter does not appear in the Specification as accepted.

103. 发明专利

FR844944A 未知
公开(公告)号：FR844944A
公开(公告)日：1939-08-04
申请号：FR844944D
申请日：1938-10-20
申请人： KOHLE UND EISENFORSCHUNG GMBH
IPC分类号： H05B6/28

104. 发明专利

DE60038224T2 未知
公开(公告)号：DE60038224T2
公开(公告)日：2009-03-19
申请号：DE60038224
申请日：2000-11-10
申请人： INDUCTOTHERM CORP
发明人： FISHMAN OLEG S , MORTIMER JOHN H , BELSH JOESPH T , RANLOF RICHARD A , MAVRODIN AURELAIN
IPC分类号： H05B6/22 , B22D18/04 , C21D1/00 , C22B1/00 , C22B9/02 , C22B9/16 , F27B9/06 , F27B14/06 , F27D11/06 , H05B6/24 , H05B6/28
摘要： An induction heating and melting system uses a crucible formed from a material that has a high electrical resistivity or high magnetic permeability, and one or more inductor coils formed from a wound cable consisting of multiple individually insulated copper conductors to form an induction furnace that, along with its associated power supply, provides a compact design. The system components are air-cooled; no water-cooling is required. The crucible may alternatively be shaped as a tunnel or enclosed furnace.

105. 发明专利

DE102006006524B4 未知
公开(公告)号：DE102006006524B4
公开(公告)日：2008-11-27
申请号：DE102006006524
申请日：2006-02-10
申请人： SAVEWAY GMBH & CO KG
发明人： HOPF MANFRED
IPC分类号： H05B6/36 , F27B14/20 , G01R31/02 , H05B6/28

106. 发明专利

DE10202449B4 未知
公开(公告)号：DE10202449B4
公开(公告)日：2005-05-04
申请号：DE10202449
申请日：2002-01-22
申请人： SCHOTT AG
发明人： NUETTGENS SYBILL , OHMSTEDE VOLKER , LEISTER MICHAEL
IPC分类号： C03B3/00 , C03B5/02 , C03B5/225 , F27B14/06 , F27B14/08 , H05B6/28

107. 发明专利

AT288667T 未知
公开(公告)号：AT288667T
公开(公告)日：2005-02-15
申请号：AT97500191
申请日：1997-11-11
申请人： SANCHEZ DUQUE DAVID
发明人： SANCHEZ DUQUE DAVID
IPC分类号： H05B3/26 , H05B3/28 , H05B6/26 , H05B6/28

108. 发明专利

DE59203291D1 未知
公开(公告)号：DE59203291D1
公开(公告)日：1995-09-21
申请号：DE59203291
申请日：1992-10-31
申请人： ABB PATENT GMBH
发明人： WICKER HELMUT , ANDREE WOLFGANG DR , PITZER BETTINA , GROSSE-BOHLE MARTIN
IPC分类号： F27D21/00 , G01B7/06 , H05B6/28 , H05B6/42

109. 发明专利

DE59202348D1 未知
公开(公告)号：DE59202348D1
公开(公告)日：1995-06-29
申请号：DE59202348
申请日：1992-03-05
申请人： ENDRESS HAUSER GMBH CO
发明人： REIMANN PETER , BREITENSTEIN HEINZ , MESSMER STEPHAN
IPC分类号： B22D11/06 , B23K35/32 , B23K35/40 , C04B37/00 , C22C16/00 , F27B14/10 , G01L1/14 , H05B6/28
摘要： The method for the production of rings (20) of uniform thickness from an active brazing alloy by melt spinning the molten alloy comprises the following steps: the alloy is melted in a crucible (3) with a lateral opening (4), the height (8) of which is approximately equal to the thickness of the material of the rings (20); the molten alloy is forced out of the crucible (3) onto the lateral surface (1') of a metal drum (1) with a high thermal conductivity rotating at high peripheral speed at a distance corresponding approximately to the thickness of the rings, being forced out at a radial distance (r) from the centre (M) of the drum corresponding approximately to the diameter of the rings; after about one quarter to three quarters of a revolution of the active brazing alloy which has solidified on the metal drum (1) to give the ring stock it is lifted off from the metal drum (1) and guided past the crucible (3) by a mechanical deflector (5) or a gas stream (62) blown onto it counter to the direction of rotation of the metal drum (1); the annular spiral (7) formed is guided around a lateral, coaxial extension of the metal drum (1) which serves as a winding mandrel (8), is arranged on the side of the crucible (3) and has an end flange (9) and diameter which is somewhat smaller than the inside diameter of the ring; the rings (20) are then cut off from the annular spiral (7).

110. 发明专利

DE4329509A1 Bridging prevention system for induction melting furnace - has wall temp. sensors connected to alarm, preventing furnace wall damage caused by metal bridge formation 未知
公开(公告)号：DE4329509A1
公开(公告)日：1994-03-10
申请号：DE4329509
申请日：1993-09-01
申请人： FUJI ELECTRIC CO LTD
发明人： HAYASHI SHIZUO
IPC分类号： F27B14/20 , F27B14/06 , F27B14/08 , F27D19/00 , F27D21/00 , H05B6/06 , H05B6/28
摘要： A bridging prevention system comprises (a) temp. sensors (31) embedded in the refractory material (5) of the furnace side and bottom walls; (b) a device for comparing the temp. detected by each sensor with a predetermined value; and (c) a device for producing an alarm when at least one of the temps. is the same as or greater than the predetermined value. In a similar system, in which the furnace has a break-out antenna and a breakout alarm, the break-out alarm is actuated when, because of refractory material wear, molten metal contacts one or more of the temp. sensors (31). Also claimed are similar systems, including electrical parameter detectors and logic circuits, are also claimed. ADVANTAGE - Furnace wall damage by continuous heating, caused by metal bridge formation is prevented.

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