CN202643739U - Seamless aluminum iron wire - Google Patents
Seamless aluminum iron wire Download PDFInfo
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- CN202643739U CN202643739U CN 201220299648 CN201220299648U CN202643739U CN 202643739 U CN202643739 U CN 202643739U CN 201220299648 CN201220299648 CN 201220299648 CN 201220299648 U CN201220299648 U CN 201220299648U CN 202643739 U CN202643739 U CN 202643739U
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- iron wire
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Abstract
The utility model relates to a seamless aluminum iron wire and a preparation method thereof. The seamless aluminum iron wire is a wire body which is formed by wrapping an intermediate layer with an outer layer, wherein the outer layer is a seamless steel shell; and the intermediate layer is an aluminum wire core layer. The seamless aluminum iron wire has the positive and beneficial effects of high rigidity, capabilities of feeding into a deeper part of a ladle, slowing or avoiding spitting, uniformly distributing aluminum on the ladle, greatly increasing the use efficiency of the aluminum iron wire and increasing the recovery rate of the aluminum by 2-5 times, better inclusion removal effect and capabilities of reducing the feed quantity of a cored wire, saving the treatment time, reducing the temperature loss in a molten steel treatment process and effectively improving the molten steel nitrogen and oxygen increasing conditions during molten steel treatment. A process adopted for producing the seamless aluminum iron wire has the advantages of high efficiency, low cost and easiness in implementation and promotion.
Description
Technical field
The utility model relates to the liquid steel refining technical field, is specifically related to a kind of seamless ferro-aluminum line.
Background technology
Wire-feeding technique is the new liquid steel refining technology that grows up after the technology of dusting.Exactly with steel liquid deoxidation, desulfurization, carburetting, be mingled with sex change, the required material of trimming and make thread (solid wire or fill the cored-wire of relevant pulvis), use the mechanical forces of feeding wire machine it passed through a kind of novel secondary refining techniques that the molten steel face reaches the molten steel deep with certain speed.With other Secondary Refining Technology particularly the technology of dusting compare, have that recovery rate is high, accurate composition control, equipment are simple, less investment, process safety are reliable.
Existing aluminum steel is pure aluminium vire, diameter of phi 11～13mm, and because of low 640 ℃ of the proportion fusing point of aluminium, difference of hardness, thereby can not feed ladle bottom, aluminium can not be evenly distributed in the molten steel.Make the recovery rate of aluminium unstable, deoxidation is insufficient, is unfavorable for the control to steel quality.
The relatively seamed product of seamless ferro-aluminum line, production technique are complicated, and the domestic enterprise that can produce is less, and majority still is in development.And utilize existing Technology to be difficult to produce the solid wire of better treatment effect, and thinner solid wire needs very high wire-feeding velocity, causes its off-position in ladle wayward.Current, smelter improves the quality of liquid steel refining in the urgent need to the seamless ferro-aluminum line of better treatment effect, and reduces production costs accordingly.
Summary of the invention
The technical problems to be solved in the utility model provides a kind of can with aluminium low speed feeding molten steel bottom, the raising aluminium recovery, remove to be mingled with effective seamless ferro-aluminum line.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of seamless ferro-aluminum line is the line body that is formed by skin parcel middle layer, and described skin is seamless box hat, and described middle layer is the aluminum steel sandwich layer.
Described line body diameter 11～13mm.
Described seamless box hat is made through hight frequency welding by the low-carbon steel band.
Described seamless box hat thickness is 0.8～1.2mm.
The diameter of described aluminum steel sandwich layer is 7～10mm.
Described seamless box hat is made by A3 steel or Q195 steel band.
The preparation method of above-mentioned seamless ferro-aluminum line:
(1) with after the metallic aluminium heating and melting, pours into aluminium bar, aluminium bar is made the aluminum core line of certain diameter after the several drawing.
(2) getting mild-carbon steel strip, to coat above-mentioned aluminum core line palintrope roll forming be pipe;
(3) closely weld together with the faying flange of ratio-frequency welding connection with above-mentioned pipe, and immediately air-cooled or contactless water-cooled is carried out in the joint portion after the welding, used high frequency frequency is 300～450KHz during hight frequency welding, 3 °～5 ° of V-type angular apertures, welding temperature is at 1380～1500 ℃, welding pressure 19.6～29.4 Mpa, welding speed 5～50m/min; Above-mentioned ratio-frequency welding has advantages of outstanding: 1. weldering speed is high, and this is that the welding zone rate of heating is exceedingly fast, and can not produce " skip welding " owing to the electric energy high concentration; 2. the heat affected zone is little, and this is that the workpiece autorefrigeration is strong because weldering speed is high, thus the narrow and difficult generation oxidation in heat affected zone, thus can obtain good tissue and the weld seam of performance, can not produce burning and not weld penetration phenomenon; 3. preweld cleaning can be carried out in surface, place to be welded.
(4) burr at excision solder bond position, again after shaping, stretch processing seamless ferro-aluminum line.
The utlity model has actively useful effect:
1. the band steel is thick, rigidity is high, can feed ladle more divides in the deep, slow down or avoid splash, and make aluminium, iron etc. can be evenly distributed in ladle, increase substantially the service efficiency of ferro-aluminum line, the rate of recovery of aluminium can improve 2～5 times, and it is better to go to be mingled with effect, and the yield rate of steel is increased to more than 99% by 96%.
2. can reduce the feed quantity of cored-wire, save the treatment time, reduce the temperature loss in the steel treatment process, and effectively improved molten steel nitrogen pick-up, oxygenation situation in the steel treatment process.
Description of drawings
Fig. 1 is a kind of section structure schematic diagram of seamless ferro-aluminum line.
Among the figure, 1 is outer, and 2 is the aluminum steel sandwich layer.
Embodiment
Used raw material etc. if no special instructions, is commercially available among the following embodiment; Method therefor is ordinary method if no special instructions.
1 one kinds of seamless ferro-aluminum lines of embodiment are the line bodies that formed by outer 1 parcel middle layer, and described skin is seamless box hat (thickness is 1mm), and described middle layer is that aluminum steel sandwich layer 2(diameter is 10mm).
The preparation method of above-mentioned seamless ferro-aluminum line may further comprise the steps:
(1) with after the metallic aluminium heating and melting, pours into aluminium bar, again aluminium bar is drawn into the aluminum core line of certain diameter through several;
(2) getting mild-carbon steel strip coats above-mentioned ferro-aluminum heart yearn and twists by forming machine and be shaped to cylindric pipe;
(3) closely weld together with the faying flange of ratio-frequency welding connection with above-mentioned pipe, and immediately air-cooled or contactless water-cooled is carried out in the joint portion after the welding, used high frequency frequency is 300～450KHz during hight frequency welding, 3 °～5 ° of V-type angular apertures, welding temperature is at 1380～1500 ℃, welding pressure 19.6～29.4 Mpa, welding speed 5～50m/min;
(4) burr at excision solder bond position, again after shaping, stretch processing seamless ferro-aluminum line.
2 one kinds of seamless ferro-aluminum lines of embodiment, it is the line body that is formed by skin parcel middle layer, described skin is seamless box hat (thickness is 1 mm), described middle layer is aluminum steel sandwich layer (diameter is 9mm), its shell is to make seamless box hat by the low-carbon steel band through hight frequency welding, the weight ratio of solid aluminium sandwich layer and seamless box hat is 1:4.0 in this line body in the unit length, solid aluminium sandwich layer 210g/m, and the heavy 310g/m of seamless box hat.Its preparation method is substantially with embodiment 1.
Claims (6)
1. a seamless ferro-aluminum line is the line body that is formed by skin parcel middle layer, it is characterized in that, described skin is seamless box hat, and described middle layer is the aluminum steel sandwich layer.
2. seamless ferro-aluminum line according to claim 1 is characterized in that, described line body diameter 11～13mm.
3. seamless ferro-aluminum line according to claim 1 is characterized in that, described seamless box hat is made through hight frequency welding by the low-carbon steel band.
4. seamless ferro-aluminum line according to claim 1 is characterized in that, described seamless box hat thickness is 0.8～1.2mm.
5. seamless ferro-aluminum line according to claim 1 is characterized in that, the diameter of described aluminum steel sandwich layer is 7～10mm.
6. seamless ferro-aluminum line according to claim 1 is characterized in that, described seamless box hat is made by A3 steel or Q195 steel band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220299648 CN202643739U (en) | 2012-06-26 | 2012-06-26 | Seamless aluminum iron wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220299648 CN202643739U (en) | 2012-06-26 | 2012-06-26 | Seamless aluminum iron wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202643739U true CN202643739U (en) | 2013-01-02 |
Family
ID=47412874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220299648 Expired - Fee Related CN202643739U (en) | 2012-06-26 | 2012-06-26 | Seamless aluminum iron wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202643739U (en) |
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2012
- 2012-06-26 CN CN 201220299648 patent/CN202643739U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130102 Termination date: 20160626 |