CN203356867U - Welding die for conducting self-propagating welding repair on cathode soft band and bus of aluminum reduction cell - Google Patents
Welding die for conducting self-propagating welding repair on cathode soft band and bus of aluminum reduction cell Download PDFInfo
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- CN203356867U CN203356867U CN 201320305096 CN201320305096U CN203356867U CN 203356867 U CN203356867 U CN 203356867U CN 201320305096 CN201320305096 CN 201320305096 CN 201320305096 U CN201320305096 U CN 201320305096U CN 203356867 U CN203356867 U CN 203356867U
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- graphite
- soft band
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Abstract
The utility model relates to a welding die, in particular to a welding die for conducting self-propagating welding repair on a cathode soft band and a bus of an aluminum reduction cell. The welding die comprises a slotted graphite block, a graphite crucible and an asbestos washer, wherein the slotted graphite block is used for containing the ends of the soft band, the graphite crucible is arranged on the graphite block and fixed on the upper portion of a welding joint, a small hole is formed in the bottom of the graphite crucible, the asbestos washer is placed between the graphite block and the bus, and a steel clamp for fixing the graphite block is arranged outside the graphite block. The welding die is unique in structure, the construction difficulty of self-propagating welding can be reduced, construction safety is guaranteed, welding quality is improved, and therefore economic benefits are increased.
Description
Technical field
The utility model relates to a kind of weld mold, especially relates to a kind of being used for the soft band of aluminium electrolytic cell cathode and bus are carried out to the weld mold of repairing from spreading welding.
Background technology
In Aluminum Electrolysis Production, in order to improve the output of aluminium, the current strength of aluminium cell presents the trend of rising, and the current strength of at present domestic aluminium cell has reached 350KA.In the electrolytic aluminium process, direct current is all generally to enter bus-bar system by cathode steel bar.In the prior art, be all generally that cathode steel bar and copper aluminium or steel al blasting piece are linked together, thereby connect whole system.No matter adopt which kind of explosion block, all need to carry out on-site maintenance.And, in the electrolytic aluminium process, large DC current like this has produced diameter at electrolysis bath circumference and reached the high-intensity magnetic field of several meters, the intensity in magnetic field can reach 180 Gausses as calculated.The soft band of negative electrode produces when destroying and just need to be repaired in process of production, and current adaptablely have gas welding, carbon arc welding and from two kinds of methods of spreading welding.Gas welding method is only applicable to sheet member, and inefficiency, can only be applied in the soft band sectional repair of aluminium.Adopt carbon arc welding need or fall electric current, power failure can cause the minimizing of electrolytic aluminium output, energy consumption to increase considerably, and when reducing electric current, still can be subject to the impact of electromagnetic field, causes welding quality not high.The aluminium cell that is current extensive use from the spreading welding method recovery technique that do not have a power failure.But in use leak stopping difficulty of the method is larger, long construction period, success rate is low, to workman's safety, is also a kind of threat.
Summary of the invention
The purpose of this utility model is to overcome the defect of above-mentioned prior art, thus provide a kind of structure unique, can reduce difficulty of construction from spreading welding, guaranteed construction safety, a kind of being used for of improving welding quality and increase economic benefit carry out to the soft band of aluminium electrolytic cell cathode and bus the weld mold of repairing from spreading welding.
The utility model is realized in the following way:
A kind of being used for carries out to the soft band of aluminium electrolytic cell cathode and bus the weld mold of repairing from spreading welding, it is characterized in that: it comprises a fluting graphite block that is used for placing soft belt end, foraminate graphite crucible is driven in the bottom that is fixed on weld seam top on graphite block, be placed on the asbestos washer between graphite block and bus, graphite block is provided with one outward for the fixing steel jig of graphite block;
Described steel jig is by a U-shaped steelframe and be welded on telescopic leading screw above it and form;
The thickness of described asbestos washer is 2 ~ 4mm.
The utility model has following effect:
1) structure uniqueness: it comprises a fluting graphite block that is used for placing soft belt end the mould that the utility model provides, foraminate graphite crucible is driven in the bottom that is fixed on weld seam top on graphite block, be placed on the asbestos washer between graphite block and bus, graphite block is provided with one outward for the fixing steel jig of graphite block; This mould comprises that foraminate graphite crucible is driven in the bottom that is fixed on weld seam top for placing the fluting graphite block of soft belt end, and the mould outside is used for the steel jig clamped, and is placed on the asbestos washer between graphite block and bus.
2) the structure construction difficulty is little, welding efficiency: the mould that the utility model provides has taken into full account the characteristics of the soft band of negative electrode and bus, to need the position of leak stopping to be reduced to as far as possible minimum of a value, especially the ingehious design of graphite block, more make the weld shape rule, at unique asbestos washer that needs to have used between leak stopping position-bus and graphite block soft high-temperature-resistant, passing through under the extruding of steel jig, complete sealing, this structure construction difficulty is little, welding efficiency is high, from economic aspect, considers still secure context considers it is all very effective.
3) use easy to operate: the mould that the utility model provides is before spreading welding, and the aluminium sheet top that first the soft welding of electrode holder negative electrode is 30mm at a thickness by hand, then be close to graphite block to this aluminium sheet and put into mould.The steel jig is by a U-shaped steelframe and be welded on telescopic leading screw above it and form.The thickness of graphite gasket is 2 ~ 4mm, with very thin asbestos yarn, works out.
The accompanying drawing explanation
Fig. 1 is the utility model structural representation.
The specific embodiment
A kind of being used for carries out to the soft band of aluminium electrolytic cell cathode and bus the weld mold of repairing from spreading welding, as shown in Figure 1: it comprises a fluting graphite block 1 that is used for placing soft belt end, foraminate graphite crucible 2 is driven in the bottom that is fixed on weld seam top on graphite block 1, be placed on the asbestos washer 3 between graphite block 1 and bus, graphite block 1 is outer is provided with one for the fixing steel jig 4 of graphite block 1.
Described steel jig 4 is by a U-shaped steelframe 5 and be welded on telescopic leading screw 6 above it and form.
The thickness of described asbestos washer 3 is 2 ~ 4mm.
Before spreading welding, the aluminium sheet top that first the soft welding of electrode holder negative electrode is 30mm at a thickness by hand, then be close to graphite block 1 to this aluminium sheet and put into mould.Steel jig 4 is by a U-shaped steelframe 5 and be welded on telescopic leading screw 6 above it and form.Graphite gasket 3 thickness be 2 ~ 4mm, work out with very thin asbestos yarn.
Claims (3)
1. one kind is used for the soft band of aluminium electrolytic cell cathode and bus are carried out to the weld mold of repairing from spreading welding, it is characterized in that: it comprises a fluting graphite block (1) that is used for placing soft belt end, foraminate graphite crucible (2) is driven in the bottom that is fixed on weld seam top on graphite block (1), be placed on the asbestos washer (3) between graphite block (1) and bus, graphite block (1) is outer is provided with one for the fixing steel jig (4) of graphite block (1).
2. a kind of being used for as claimed in claim 1 carries out to the soft band of aluminium electrolytic cell cathode and bus the weld mold of repairing from spreading welding, it is characterized in that: described steel jig (4) is by a U-shaped steelframe (5) and be welded on telescopic leading screw (6) above it and form.
3. a kind of being used for as claimed in claim 1 carries out to the soft band of aluminium electrolytic cell cathode and bus the weld mold of repairing from spreading welding, and it is characterized in that: the thickness of described asbestos washer (3) is 2 ~ 4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320305096 CN203356867U (en) | 2013-05-30 | 2013-05-30 | Welding die for conducting self-propagating welding repair on cathode soft band and bus of aluminum reduction cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320305096 CN203356867U (en) | 2013-05-30 | 2013-05-30 | Welding die for conducting self-propagating welding repair on cathode soft band and bus of aluminum reduction cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203356867U true CN203356867U (en) | 2013-12-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320305096 Expired - Fee Related CN203356867U (en) | 2013-05-30 | 2013-05-30 | Welding die for conducting self-propagating welding repair on cathode soft band and bus of aluminum reduction cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203356867U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104972220A (en) * | 2015-07-29 | 2015-10-14 | 武汉大学 | In-situ power-cut-free welding method for soft mother belts and aluminum bus of cathode of aluminum electrolysis cell |
| CN105040031A (en) * | 2015-08-27 | 2015-11-11 | 武汉大学 | Non-power-outage repairing method for aluminum electrolysis cell short circuit busbar |
-
2013
- 2013-05-30 CN CN 201320305096 patent/CN203356867U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104972220A (en) * | 2015-07-29 | 2015-10-14 | 武汉大学 | In-situ power-cut-free welding method for soft mother belts and aluminum bus of cathode of aluminum electrolysis cell |
| CN105040031A (en) * | 2015-08-27 | 2015-11-11 | 武汉大学 | Non-power-outage repairing method for aluminum electrolysis cell short circuit busbar |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131225 Termination date: 20160530 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |