CN205133703U - Electroslag remelting furnace's scratch start device - Google Patents
Electroslag remelting furnace's scratch start device Download PDFInfo
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- CN205133703U CN205133703U CN201520859502.XU CN201520859502U CN205133703U CN 205133703 U CN205133703 U CN 205133703U CN 201520859502 U CN201520859502 U CN 201520859502U CN 205133703 U CN205133703 U CN 205133703U
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- arc
- starting
- scratch start
- base plate
- bottom plate
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Abstract
The utility model relates to an electroslag remelting furnace's scratch start device, include scratch start backing plate, scratch start bottom plate and the striking piece that contacts with the electrode base metal, scratch start bottom plate is cut in the disc of self -electrode mother metal and is welded on scratch start backing plate for radial, the striking piece for take from the electrode base metal, length is lighter than the radial strip piece of scratch start bottom plate, this striking block welding in scratch start bottom plate, and at least for six and the centre of a circle of using scratch start bottom plate as center along the radial equipartition in scratch start bottom plate border, form the space that is used for placing the fritting sediment between each adjacent striking piece, each striking piece top is used the scratch start bottom plate centre of a circle and is placed the plane as center formation electrode bar. The device can guarantee that scratch start stage electric current, voltage are steady, avoids the scratch start stage easily to beat arc, easy adhesion, the easy scheduling problem of opening a way, and the electrode base metal is all taken from to scratch start bottom plate and striking piece in addition, and is consequently pollution -free, is the electroslag remelting furnace's scratch start device that is used for of a high efficiency, safety.
Description
Technical field
The utility model relates to special smelting field, particularly relates to a kind of arc starter of electroslag remelting furnace.
Background technology
Electroslag furnace is a kind of consumable electrode utilizing melting current to produce heat energy fusing insertion slag bath, and metal drop, by after the cleaning of slag liquid, crystallizes into the special smelting equipment of one of ESR ingot in water mold.
At present, the starting the arc mode of electroslag furnace routine mainly contains two kinds, one is the liquid starting the arc, its principle first makes it to be molten into liquid slag by heating powdery slag charge, then start electroslag melting after liquid slag is injected crystallizer, which shortcoming such as can effectively avoid starting the arc stage electric current, voltage fluctuation large, and ESR ingot quality can be improved, be widely used, but which need be equipped with special change slag equipment, occupied ground, production efficiency low and improve smelting cost; Another kind is the solid-state starting the arc, its principle utilizes electrode directly change slag or add the striking agent starting the arc such as graphite, advantage to change Slag treatment, can enhance productivity, cost-saving, to be which cause electric current, voltage wave band large in the starting the arc stage to shortcoming, run-on plate and the easy adhesion of electrode, easily forms open circuit and caused arc failure, and easily produce composition tolerances bottom ESR ingot after melting.
Summary of the invention
Technical problem to be solved in the utility model is the arc starter providing a kind of safe, pollution-free, efficient electroslag remelting furnace for prior art, it in conjunction with the advantage of the starting the arc solid-state in prior art and the liquid starting the arc, can solve the problem of starting the arc weak effect in prior art.
The utility model solves the problems of the technologies described above adopted technical scheme: a kind of arc starter of electroslag remelting furnace, it is characterized in that, comprise starting the arc backing plate, starting the arc base plate and striking block, described starting the arc base plate is the disk of radial cut self-electrode mother metal and is welded on starting the arc backing plate, described striking block is for taking from electrode base metal, length is less than the striped blocks of starting the arc base plate radius, this striking block welding is in starting the arc base plate, and be at least six pieces and along starting the arc base plate edge radial equipartition centered by the center of circle of starting the arc base plate, the space for placing pre-melted slag is formed between each adjacent striking block, the plane of electrodes rod is formed centered by the starting the arc base plate center of circle on each striking block top.
The for the benefit of heat radiation of starting the arc base plate and the solder bond of starting the arc base plate and starting the arc backing plate in fusion process, as preferably, described starting the arc backing plate is the ring washer of tool centre hole, and described starting the arc base plate cover is located on this centre hole.
Form the placement position of electrode base metal end between the end of each striking block on direction, the starting the arc base plate center of circle, as preferably, described striking block length is 2/3 of starting the arc base plate radius.
Further, the thickness of described starting the arc base plate is 10 ~ 30mm.
Further, described striking block is rectangular block, and thickness is 10 ~ 20mm, is highly 15 ~ 25mm.
Compared with prior art, the utility model has the advantage of: starting the arc base plate and the striking block being welded in starting the arc base plate are set, the space for placing pre-melted slag is formed between each adjacent striking block, starting the arc stage electrode bar keeps and striking block top contact, under sustained current supply, electrode bar obtains preheating in advance, and make the pre-melted slag between adjacent striking block form liquid slag bath fast, ensure starting the arc stage electric current, voltage is steady, the starting the arc stage is avoided easily to beat arc, easy adhesion, the problems such as easy open circuit, in addition, starting the arc base plate and striking block all take from electrode base metal, therefore pollution-free, a kind of efficient, the arc starter for electroslag remelting furnace of safety.
Accompanying drawing explanation
Fig. 1 is the arc starter structural representation of electroslag remelting furnace in the utility model;
Fig. 2 is the structural representation of striking block in the utility model.
Embodiment
Below in conjunction with accompanying drawing embodiment, the utility model is described in further detail.
As shown in Figure 1 and Figure 2, a kind of arc starter of electroslag remelting furnace, comprises starting the arc backing plate 1, starting the arc base plate 2 and striking block 3.Wherein, starting the arc backing plate 1 is for having the ring washer of centre hole, starting the arc base plate 2 for thickness be the disk of 20mm, it is formed by electrode base metal radial cuts, namely the radius of starting the arc base plate 2 is equal with electrode base metal, and the centre hole that starting the arc base plate 2 lid is located at starting the arc backing plate 1 is welded as a whole with starting the arc backing plate 1.
Striking block 3 takes from electrode base metal equally, in the present embodiment, striking block 3 is 12 pieces, and radial equipartition centered by the center of circle of starting the arc base plate 2 is also welded on starting the arc base plate 2, and welding strength is enough to the weight of sustaining electrode rod, the angle namely between adjacent striking block 3 is 30 DEG C.As shown in Figure 2, striking block 3 is rectangular block, and length a is 2/3 of starting the arc base plate 2 radius, is 2/3 of electrode base metal radius, and thickness b is 15mm, and height c is 20mm.One end of each striking block 3 and the edge of starting the arc base plate 2 offset, formed between the other end top centered by starting the arc base plate 2 center of circle, for the plane of electrodes rod, between adjacent striking block 3, form the space for placing pre-melted slag.
During melting, first between adjacent striking block 3, fill pre-melted slag, add in slag process and avoid slag charge to be attached to the top of striking block 3, electrode bar mother metal is lifted in crystallizer, and holding electrode rod contacts with striking block 3, starts melting program, carries out starting the arc melting.Due to starting the arc stage holding electrode rod and striking block 3 top contact always, under sustained current supply, electrode bar obtains preheating in advance, and the pre-melted slag between the block 3 of striking simultaneously body forms liquid slag bath very soon, has ensured that the electric current in starting the arc stage, voltage are steady.
Claims (5)
1. the arc starter of an electroslag remelting furnace, it is characterized in that, comprise starting the arc backing plate, starting the arc base plate and striking block, described starting the arc base plate is the disk of radial cut self-electrode mother metal and is welded on starting the arc backing plate, described striking block is for taking from electrode base metal, length is less than the striped blocks of starting the arc base plate radius, this striking block welding is in starting the arc base plate, and be at least six pieces and along starting the arc base plate edge radial equipartition centered by the center of circle of starting the arc base plate, the space for placing pre-melted slag is formed between each adjacent striking block, the plane of electrodes rod is formed centered by the starting the arc base plate center of circle on each striking block top.
2. the arc starter of electroslag remelting furnace as claimed in claim 1, it is characterized in that, described starting the arc backing plate is the ring washer of tool centre hole, and described starting the arc base plate cover is located on this centre hole.
3. the arc starter of electroslag remelting furnace as claimed in claim 1, it is characterized in that, described striking block length is 2/3 of starting the arc base plate radius.
4. the arc starter of the electroslag remelting furnace as described in claim arbitrary in claims 1 to 3, is characterized in that, the thickness of described starting the arc base plate is 10 ~ 30mm.
5. the arc starter of the electroslag remelting furnace as described in claim arbitrary in claims 1 to 3, is characterized in that, described striking block is rectangular block, and thickness is 10 ~ 20mm, is highly 15 ~ 25mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520859502.XU CN205133703U (en) | 2015-10-29 | 2015-10-29 | Electroslag remelting furnace's scratch start device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520859502.XU CN205133703U (en) | 2015-10-29 | 2015-10-29 | Electroslag remelting furnace's scratch start device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205133703U true CN205133703U (en) | 2016-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520859502.XU Expired - Fee Related CN205133703U (en) | 2015-10-29 | 2015-10-29 | Electroslag remelting furnace's scratch start device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205133703U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105695762A (en) * | 2016-04-08 | 2016-06-22 | 大冶特殊钢股份有限公司 | Solid slag ignition method applicable to electro-slag remelting |
-
2015
- 2015-10-29 CN CN201520859502.XU patent/CN205133703U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105695762A (en) * | 2016-04-08 | 2016-06-22 | 大冶特殊钢股份有限公司 | Solid slag ignition method applicable to electro-slag remelting |
| CN105695762B (en) * | 2016-04-08 | 2018-05-04 | 大冶特殊钢股份有限公司 | A kind of solid slag suitable for electroslag remelting is ignited method |
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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: 20160406 Termination date: 20191029 |
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| CF01 | Termination of patent right due to non-payment of annual fee |