CN202643740U - Seamless calcium aluminum iron wire - Google Patents
Seamless calcium aluminum iron wire Download PDFInfo
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- CN202643740U CN202643740U CN 201220299649 CN201220299649U CN202643740U CN 202643740 U CN202643740 U CN 202643740U CN 201220299649 CN201220299649 CN 201220299649 CN 201220299649 U CN201220299649 U CN 201220299649U CN 202643740 U CN202643740 U CN 202643740U
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- iron wire
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Abstract
The utility model relates to a seamless calcium aluminum iron wire which is a wire body formed with an outer layer wrapping an interlayer. The outer layer is a seamless steel shell, and the interlayer comprises a calcium wire core layer and an aluminum strip wrapping the calcium wire core layer. The seamless calcium aluminum iron wire has the advantages of being high in rigidity, being capable of penetrating into a deeper portion of a steel ladle, reducing and avoiding splashing, enabling calcium to be evenly distributed in the steel ladle, improving the use efficiency of a calcium aluminum iron wire significantly, improving the yield rate of aluminum and the recovery rate of calcium by 2 to 5 times, removing inclusions better, reducing the feed quantity of cored wires, saving handling time, cutting the temperature loss during the treating process of liquid steel, and improving situations of nitrogen enhancement and oxygen enhancement of liquid steel during the treating process of liquid steel.
Description
Technical field
The utility model relates to the liquid steel refining technical field, is specifically related to a kind of seamless aluminium calcium iron wire.
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 height, accurate composition control, equipment are simple, less investment, process safety are reliable, the molten steel cooling less, do not have an advantage such as environmental pollution, thereby since the mid-1970s exploitation, obtained abroad using more and more widely.And existing steel-making and casting mostly are powder core normal packet heart yearn with cored-wire.
The general belt steel thickness of existing cored-wire is 0.4～0.6mm, and fastening uncinus is 4 times of belt steel thickness.And need higher wire-feeding velocity just can make the optimum depth of line feeding ladle, and speed should be controlled at 160～300m/min, can not feed ladle bottom and easily splash because its band steel is thinner, band steel cracking phenomena easily occurs, and aluminium, calcium, iron can not be evenly distributed in the molten steel.It is unstable that traditional Ca-Si cored-wire, Ca-Al cored-wire are subjected to production technique to affect the recovery rate of Ca, is unfavorable for the control to steel quality.
The relatively seamed product of seamless aluminium calcium iron wire, 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 larger-diameter solid wire, 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 aluminium calcium iron wire 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 ofly can slow down the molten steel splash, improve aluminium, the calcium rate of recovery, remove to be mingled with effective seamless aluminium calcium iron wire.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of seamless aluminium calcium iron wire is the line body that is formed by skin parcel middle layer, and described skin is seamless box hat, and described middle layer comprises the aluminium strip layer of calcium line sandwich layer and this calcium sandwich layer of parcel.
Described line body diameter is 10～13mm.
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 calcium line sandwich layer is 6～8mm.
Described aluminium strip layer thickness is 1～2mm.
Described seamless box hat is made by A3 steel or Q195 steel band.
The preparation method of above-mentioned seamless aluminium calcium iron wire:
(1) first the metallic aluminium heating and melting is rolled into certain thickness aluminium strip;
(2) again calcium metal is added the calcium line that is hot extruded into certain wire diameter;
(3) coat the aluminium calcium compounded yarn that described calcium line is made certain diameter with described aluminium strip;
(4) coat above-mentioned aluminium calcium compounded yarn palintrope roll forming as pipe take mild-carbon steel strip;
(5) faying flange of above-mentioned pipe is closely welded together under atmosphere of inert gases with the ratio-frequency welding connection, 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 15～20m/min;
(6) burr at excision solder bond position, again after shaping, stretch processing seamless aluminium calcium iron wire.
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, calcium, iron etc. can be evenly distributed in ladle, increase substantially the service efficiency of aluminium calcium iron wire, the rate of recovery of aluminium calcium 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 synoptic diagram of seamless aluminium calcium iron wire.
Among the figure, 1 is outer, and 2 is the aluminium strip layer, and 3 is the calcium line 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 aluminium calcium iron wires of embodiment, it is the line body that is formed by outer 1 parcel middle layer, described outer 1 is seamless box hat (thickness 1mm), and described middle layer comprises calcium line sandwich layer 3(diameter 7mm) and the parcel this calcium sandwich layer 3 aluminium strip layer 2(thickness 1.5mm).
The preparation method of above-mentioned seamless aluminium calcium iron wire may further comprise the steps:
(1) the metallic aluminium heating and melting is pulled into the heavily aluminium strip of index of certain thickness, rice;
(2) calcium metal is squeezed into the calcium line of certain wire diameter;
(3) get the aluminium calcium compounded yarn that aluminium strip clad metal calcium line is made certain diameter and Al, Ca ratio;
(4) getting mild-carbon steel strip, to coat above-mentioned aluminium calcium compounded yarn palintrope roll forming be pipe;
(5) 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 15～20m/min;
(6) burr at excision solder bond position, again after shaping, stretch processing seamless aluminium calcium iron wire.
In on May 14,3 days to 2012 May in 2012, the above-mentioned seamless aluminium calcium iron wire that the steel grade experiment has used the prosperous calcium industry of the crowd of Gongyi City company limited to provide is provided in special steel company one, and concrete service condition is as follows:
According to the index of this seamless aluminium calcium iron wire, can only be that 0.010% steel grade uses at the Al lower limit, it is 120m/min that 10 stoves, wire-feeding velocity are used in this test altogether, and the test steel grade is respectively 33Mn2V/1, Q345B, 40MnCr62V, and particular case is as follows:
The concrete applicable cases of table 1 is seamless aluminium calcium iron wire
Testing data result shows that the recovery rate of using seamless aluminium calcium iron wire 601Al is that the recovery rate of 62.6%, 601Ca is 18.8%, compares and uses CaSi silk recovery rate that significantly raising is arranged.
Claims (7)
1. a seamless aluminium calcium iron wire 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 comprises the aluminium strip layer of calcium line sandwich layer and this calcium sandwich layer of parcel.
2. seamless aluminium calcium iron wire according to claim 1 is characterized in that, described line body diameter is 10～13mm.
3. seamless aluminium calcium iron wire 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 aluminium calcium iron wire according to claim 1 is characterized in that, described seamless box hat thickness is 0.8～1.2mm.
5. seamless aluminium calcium iron wire according to claim 1 is characterized in that the diameter of described calcium line sandwich layer is 6～8mm.
6. seamless aluminium calcium iron wire according to claim 1 is characterized in that described aluminium strip layer thickness is 1～2mm.
7. seamless aluminium calcium iron wire 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 201220299649 CN202643740U (en) | 2012-06-26 | 2012-06-26 | Seamless calcium aluminum iron wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220299649 CN202643740U (en) | 2012-06-26 | 2012-06-26 | Seamless calcium aluminum iron wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202643740U true CN202643740U (en) | 2013-01-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220299649 Expired - Fee Related CN202643740U (en) | 2012-06-26 | 2012-06-26 | Seamless calcium aluminum iron wire |
Country Status (1)
| Country | Link |
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| CN (1) | CN202643740U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103146881A (en) * | 2013-03-01 | 2013-06-12 | 莱芜钢铁集团有限公司 | Core-spun yarn for treating compound calcium |
| CN105695663A (en) * | 2016-04-22 | 2016-06-22 | 马鞍山市兴达冶金新材料有限公司 | Seamless solid core aluminum-calcium core-spun yarn and production system and method thereof |
-
2012
- 2012-06-26 CN CN 201220299649 patent/CN202643740U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103146881A (en) * | 2013-03-01 | 2013-06-12 | 莱芜钢铁集团有限公司 | Core-spun yarn for treating compound calcium |
| CN103146881B (en) * | 2013-03-01 | 2015-03-18 | 莱芜钢铁集团有限公司 | Core-spun yarn for treating compound calcium |
| CN105695663A (en) * | 2016-04-22 | 2016-06-22 | 马鞍山市兴达冶金新材料有限公司 | Seamless solid core aluminum-calcium core-spun yarn and production system and method thereof |
| CN105695663B (en) * | 2016-04-22 | 2017-07-04 | 马鞍山市兴达冶金新材料有限公司 | A kind of seamless real core aluminium calcium core-spun yarn and its production system and production 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: 20130102 Termination date: 20140626 |
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| EXPY | Termination of patent right or utility model |