CN2298092Y - Electric heating apparatus for silicon carbide rod vacuum soldering furnace - Google Patents
Electric heating apparatus for silicon carbide rod vacuum soldering furnace Download PDFInfo
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- CN2298092Y CN2298092Y CN 97233031 CN97233031U CN2298092Y CN 2298092 Y CN2298092 Y CN 2298092Y CN 97233031 CN97233031 CN 97233031 CN 97233031 U CN97233031 U CN 97233031U CN 2298092 Y CN2298092 Y CN 2298092Y
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Abstract
The utility model discloses an electric heating apparatus for silicon carbide rod vacuum soldering furnaces, belonging to the technical field of silicon carbon products producing equipment. The problems of the existing electric heating apparatuses that the electrodes and the joints are constantly burned, burned together, etc. can be resolved. The utility model is characterized in that the end of an existing electrode 4 is connected with a transition electrode 6 made of nonmetal electrically conductive materials, and the transition electrode 6 is fixed with the electrode 4 through a lock nut 5; the transition electrode 6 has internal threads screwed with a joint 7; the existing integral metal electrodes are replaced. The utility model has the advantages of low cost, easy maintenance, long service life, high reliability, etc., and the utility model is suitable for the rebuilding and the improvement of the existing stoves.
Description
The utility model discloses a kind of electric heater unit of Elema vacuum brazing stove, belong to silicon-carbon product production equipment technical field.
The Elema welding is that the high temperature that is produced by the graphite electric heating element under vacuum state is realized.Electric heater unit is the critical component of vacuum brazing stove.Known electric heater unit adopts copper electrode, in cooling water channel is arranged, a joint is arranged between electrode and the graphite electric heating element, joint employing graphite material is made, and external screw thread and electrode bolt are arranged.Because vacuum brazing stove is in the intermittent work state, cold and hot continually variation can make the connecting thread place between joint and the copper electrode become flexible and produce electric arc, ablation electrode.In addition, the graphite electric heating element belongs to consumable accessory, also will often change, and has quickened joint and interelectrode thread abrasion, also can aggravate the generation of electric arc.Serious meeting is in the same place electrode and joint are molten, forms " burning to death " state and can't screw off and change the graphite electric heating element, causes electrode to scrap.Not only influence is produced, and waste is very big.
Invention task of the present utility model is to improve Elema vacuum brazing stove electric heater unit, overcomes the defective that electrode and joint are ablated easily.
Technical essential of the present utility model is the transition electrode 6 that a non-metallic conducting material makes that is spirally connected in original electrode 4 ends, with locking nut 5 it is fixedlyed connected with electrode 4, at transition electrode 6 system of getting on the bus internal thread and the joint 7 formation conductive path that is spirally connected, replace traditional whole copper electrode, make electrode have the metal electrode of water quench and a part of non-refrigerated nonmetallic materials transition electrode two parts to constitute by a part.The transition electrode of nonmetallic materials is connected with the joint that graphite material is made, and overcomes the galvanic corrosion phenomenon, fusing can not take place burn to death.The junction temperature is lower between transition electrode and the electrode, has locking nut to fix, and has avoided producing electric arc because of loose contact.Can not burn phenomenon to death even produce electric arc yet, constitute, can not produce the phenomenon of fusing because joint and transition electrode are nonmetallic materials.
Concrete structure of the present utility model is such: a kind of Elema vacuum brazing stove electric heater unit, comprise the metal electrode 4 on the be fixed on furnace shell 3 of two bands cooling water channels 1 and feed lines 2, the joint 7 that is connected with electric heating element 8, it is characterized in that being spirally connected the transition electrode 6 that non-metallic conducting material is made is installed in the end of electrode 4, by locking nut 5 it is fixedlyed connected with electrode 4, the internal thread that is spirally connected with joint 7 is arranged on the transition electrode 6, joint 7 and transition electrode 6 be spirally connected fixing electric heating element 8 is clamped between the joint 7 constitute the galvanic circle.
During the utility model uses, when need are changed electric heating element, joint can be screwed off on transition electrode, take out electric heating element, replace with new product, screw joint and electric heating element is clamped between two joints gets final product.
Major advantage of the present utility model is fundamentally to have solved electrode and joint is burnt the problem of scrapping to death.Advantages such as it is low to have cost, and easy care, life-span are long can improve the functional reliability of vacuum brazing stove greatly.Be suitable for the usefulness that renovates to existing stove.Has good economic benefits.
Accompanying drawing 1 is a structural representation of the present utility model;
Accompanying drawing 2 is structure cutaway views of electrode and transition electrode.Among the figure: 1-cooling water channel, 2, feed line, 3, furnace shell, 4, electrode, 5, locking nut, 6, transition electrode, 7, joint, 8, electric heating element.
Among the embodiment of the present utility model, transition electrode adopts the Delanium material to make through cut.Adopt M72 * 3 spiral marking connections between electrode and the transition electrode.Adopt M130 * 4 thread connection between transition electrode and the joint.
Claims (2)
1, a kind of Elema vacuum brazing stove electric heater unit, comprise the metal electrode (4) on the be fixed on furnace shell (3) of two bands cooling water channels (1) and feed lines (2), the joint (7) that is connected with electric heating element (8), it is characterized in that being spirally connected the transition electrode (6) that non-metallic conducting material is made is installed in the end of electrode (4), by locking nut (5) it is fixedlyed connected with electrode (4), the internal thread that is spirally connected with joint (7) is arranged on the transition electrode (6), and joint (7) and transition electrode (6) are spirally connected to fix electric heating element (8) is clamped between the joint (7) and constitute the galvanic circle.
2,, it is characterized in that transition electrode (6) is that the Delanium material constitutes according to the described Elema vacuum brazing stove of claim 1 electric heater unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97233031 CN2298092Y (en) | 1997-05-23 | 1997-05-23 | Electric heating apparatus for silicon carbide rod vacuum soldering furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97233031 CN2298092Y (en) | 1997-05-23 | 1997-05-23 | Electric heating apparatus for silicon carbide rod vacuum soldering furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2298092Y true CN2298092Y (en) | 1998-11-25 |
Family
ID=33944701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97233031 Expired - Fee Related CN2298092Y (en) | 1997-05-23 | 1997-05-23 | Electric heating apparatus for silicon carbide rod vacuum soldering furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2298092Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100534241C (en) * | 2003-01-24 | 2009-08-26 | Sgl碳股份公司 | Carbon electrodes and connection elements of the electrodes having directionally structured contact surfaces |
| CN102328145A (en) * | 2011-07-28 | 2012-01-25 | 无锡四方集团真空炉业有限公司 | Electrode device for soldering furnace body |
-
1997
- 1997-05-23 CN CN 97233031 patent/CN2298092Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100534241C (en) * | 2003-01-24 | 2009-08-26 | Sgl碳股份公司 | Carbon electrodes and connection elements of the electrodes having directionally structured contact surfaces |
| CN102328145A (en) * | 2011-07-28 | 2012-01-25 | 无锡四方集团真空炉业有限公司 | Electrode device for soldering furnace body |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |