CN107541751A - A kind of Bi-metal Steel Aluminum cathode steel bar and preparation method thereof - Google Patents
A kind of Bi-metal Steel Aluminum cathode steel bar and preparation method thereof Download PDFInfo
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- CN107541751A CN107541751A CN201710827239.XA CN201710827239A CN107541751A CN 107541751 A CN107541751 A CN 107541751A CN 201710827239 A CN201710827239 A CN 201710827239A CN 107541751 A CN107541751 A CN 107541751A
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Abstract
A kind of Bi-metal Steel Aluminum cathode steel bar and preparation method thereof, is related to electrolytic aluminum smelting technical field, the cathode steel bar that a kind of Bi-metal Steel Aluminum makes, and the mass percent of its each component is：C is 0.04~0.10%, Si≤0.17%, Mn≤0.25%, P≤0.04%, S≤0.04%, Al are 0.30~0.65%, and remaining is Fe.A kind of casting method of cathode steel bar prepared by Bi-metal Steel Aluminum, it is by the first step：Smelt 08 aluminium waste；Second step：Add metal aluminium ingot；3rd step：Add rare earth silicon；4th step：Rolling or punching block casting are completed.The beneficial effects of the present invention are：The present invention is by long-term, research and experiment repeatedly, the cathode steel bar of Bi-metal Steel Aluminum preparation has been succeeded in developing, at least 50mV can be reduced according to its voltage is calculated, often reducing 1mv can economize on electricity 3.3 degree, aluminium per ton can economize on electricity fairly obvious up to more than 150kWh, energy-saving effect.
Description
First, technical field
A kind of Bi-metal Steel Aluminum cathode steel bar of the present invention suitable for large-scale pre-baked aluminum electrolysis cell cathode construction and preparation method thereof.
2nd, background technology
Aluminum electrolysis industry is power consumption rich and influential family, and the height of power consumption is the key factor for restricting aluminium electrolysis enterprise development.Therefore, it is electric
The production management department for solving aluminium all passes through using reduction power consumption as the important technology of technological progress in enterprises and raising production management level
One of index of helping.It is well known that aluminum electrolysis electric power system is direct current, low-voltage, big current loop, in the power supply of electrolytic cell
Loop generally use low resistance design, and it is one of effective way of aluminium electroloysis energy-conservation to reduce pressure drop outside electrolytic cell.Research hair
Existing, effectively to reduce loss of the electric current in conductive process, electrolytic cell cathode steel bar resistivity should be the smaller the better.At present, it is traditional
Aluminium electrolysis cathode electric installation typically using rolling band steel 230mm × 100mm × 2100mm, material is Q195 rod iron, and
After same material band steel and busbar graded seal, combined with cathode block with petroleum coke ramming, main rise conducts electric current
Effect.The existing carbon steel composition of common Q 195 is（%）：C 0.06-0.12, Si≤0.3, Mn 0.25~0.50, P≤
0.045th, S≤0.050, traditional cathode steel bar is due to the limitation in terms of material, structure and handicraft design, and there is electric current
It is lost that larger, pressure drop is too high（Outside pressure drop is typically in 210mV or so）Etc. problems.
3rd, the content of the invention
In view of the shortcomings of the prior art, the present invention provides a kind of Bi-metal Steel Aluminum cathode steel bar, it is characterised in that：The weight of its each component
Measuring percentage is：C0.04~0.10%, Si≤0.17%, Mn≤0.25%, P≤0.04%, S≤0.04%, Al 0.30~
0.65%, remaining is Fe.
A kind of preparation method of Bi-metal Steel Aluminum cathode steel bar, it is characterised in that：It is completed by following steps, the first step：It is right
08 aluminium steel scrap is smelted；Second step：Metal aluminium ingot is added, addition is the 0.30~0.65% of gross weight；3rd step：Before coming out of the stove
Rare earth silicon is added within 30 minutes into melt, addition is the 0.015~0.020% of gross weight, and refining is come out of the stove after 30 minutes；4th step：
By the cast molding in punching block set of the melt after coming out of the stove, or continuous casting roll forming.
The beneficial effects of the present invention are：
The present invention passes through long-term, multiple, research and experiment repeatedly, succeeds in developing a kind of Bi-metal Steel Aluminum cathode steel bar finally, with
Traditional Q195 materials cathode steel bar is compared, and resistivity substantially reduces, and electric conductivity, corrosion resistance greatly improve, by determining its pressure
Drop can reduce at least 50mV, and often reducing 1mV can economize on electricity 3.3 degree, and the economize on electricity of ton aluminium can reach more than 150 degree, to produce 500000 per year
The medium-sized aluminium electroloysis enterprise calculation of ton aluminium, year economize on electricity up to 75,000,000 degree, and its energy-saving effect is very notable.
4th, embodiment
Embodiment 1：A kind of Bi-metal Steel Aluminum cathode steel bar, it is characterised in that：The mass percent of its each component is：C be 0.04%,
Si is 0.17%, Mn 0.25%, P 0.04%, S 0.04%, Al 0.30%, and remaining is Fe.
A kind of preparation method of cathode steel bar prepared by Bi-metal Steel Aluminum, it is characterised in that：It is completed by following steps, and first
Step：Smelt 08 aluminium waste, the mass percent of each component is in 08 aluminium waste：C 0.04%, Si 0.10%, Mn 0.25%,
P is 0.025%, S 0.025%, by 1000kg 08 aluminium waste at 1550 DEG C, is smelted under conditions of normal pressure in middle frequency furnace
1.5 the time；
Second step：Metal aluminium ingot is added, again to addition metal aluminium ingot in 08 aluminium waste is smelted after 08 aluminium waste melts entirely, aluminium adds
Enter 0.30% that amount is 08 aluminium waste gross weight；
3rd step：Rare earth silicon is added, rare earth silicon, the addition of rare earth silicon are added in 30 minutes 08 aluminium wastes to smelting before coming out of the stove
Measure for smelting 08 aluminium waste and addition metal aluminium ingot gross weight 0.015%, complete rare earth silicon to be added and melt after, essence
Refining removes 08 aluminium waste in 30 minutes, obtains the manufacture material of cathode steel bar；
4th step：By the cast molding in punching block set of the melt after coming out of the stove.
Embodiment 2, a kind of Bi-metal Steel Aluminum cathode steel bar, it is characterised in that：The mass percent of its each component is：C be 0.10%,
Si ＜ 0.17%, Mn ＜ 0.25%, P ＜ 0.04%, S ＜ 0.04%, Al 0.65%, remaining is Fe.
A kind of preparation method of cathode steel bar prepared by Bi-metal Steel Aluminum, it is characterised in that：It is completed by following steps, and first
Step：Smelt 08 aluminium waste, the mass percent of each component is in 08 aluminium waste：C is 0.08%, Si ＜ 0.10%, Mn ＜
0.25%th, P ＜ 0.025%, S ＜ 0.025%, by 1000kg 08 aluminium waste at 1575 DEG C, in middle frequency furnace under conditions of normal pressure
1.8 times of interior smelting；
Second step：Metal aluminium ingot is added, again to addition metal aluminium ingot in 08 aluminium waste is smelted after 08 aluminium waste melts entirely, aluminium adds
Enter 0.45% that amount is 08 aluminium waste gross weight；
3rd step：Rare earth silicon is added, rare earth silicon, the addition of rare earth silicon are added in 30 minutes 08 aluminium wastes to smelting before coming out of the stove
Measure for smelting 08 aluminium waste and addition metal aluminium ingot gross weight 0.018%, complete rare earth silicon to be added and melt after, essence
Refining removes 08 aluminium waste in 30 minutes, obtains the manufacture material of cathode steel bar；
4th step：By the melt after coming out of the stove punching block set in continuous casting roll forming.
Embodiment 3, a kind of Bi-metal Steel Aluminum cathode steel bar, it is characterised in that：The mass percent of its each component is：C be 0.10%,
Si ＜ 0.17%, Mn ＜ 0.25%, P ＜ 0.04%, S ＜ 0.04%, Al 0.65%, remaining is Fe.
A kind of preparation method of cathode steel bar prepared by Bi-metal Steel Aluminum, it is characterised in that：It is completed by following steps, and first
Step：Smelt 08 aluminium waste, the mass percent of each component is in 08 aluminium waste：C0.08%, Si ＜ 0.10%, Mn ＜ 0.25%,
P ＜ 0.025%, S ＜ 0.025%, by 1000kg 08 aluminium waste at 1600 DEG C, smelted under conditions of normal pressure in middle frequency furnace
2 times；
Second step：Metal aluminium ingot is added, again to addition metal aluminium ingot in 08 aluminium waste is smelted after 08 aluminium waste melts entirely, aluminium adds
Enter 0.65% that amount is 08 aluminium waste gross weight；
3rd step：Rare earth silicon is added, rare earth silicon, the addition of rare earth silicon are added in 30 minutes 08 aluminium wastes to smelting before coming out of the stove
Measure for smelting 08 aluminium waste and addition metal aluminium ingot gross weight 0.020%, complete rare earth silicon to be added and melt after, essence
Refining removes 08 aluminium waste in 30 minutes, obtains the manufacture material of cathode steel bar；
4th step：By the melt after coming out of the stove punching block set in continuous casting roll forming.
Claims (2)
- A kind of 1. cathode steel bar that Bi-metal Steel Aluminum makes, it is characterised in that：The percetage by weight of its each component is：C0.04~ 0.10%th, Si≤0.17%, Mn≤0.25%, P≤0.04%, S≤0.04%, Al 0.30~0.65%, remaining is Fe.
- A kind of 2. preparation method of Bi-metal Steel Aluminum cathode steel bar, it is characterised in that：It is completed by following steps, the first step：To 08 Aluminium steel scrap is smelted；Second step：Metal aluminium ingot is added, addition is the 0.30~0.65% of gross weight；3rd step：30 before coming out of the stove Minute adds rare earth silicon into melt, and addition is the 0.015~0.020% of gross weight, and refining is come out of the stove after 30 minutes；4th step：Will Melt cast molding in punching block set after coming out of the stove, or continuous casting roll forming.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110184539A (en) * | 2019-06-04 | 2019-08-30 | 甘肃酒钢集团宏兴钢铁股份有限公司 | A kind of low cost high-conductivity electrodes band steel and its smelting process |
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| CN102002732A (en) * | 2010-12-02 | 2011-04-06 | 云南云铝涌鑫铝业有限公司 | Preparation method of phosphorus pig iron cathode for aluminum electrolysis |
| CN102392184A (en) * | 2011-12-15 | 2012-03-28 | 钢铁研究总院 | High temperature resistant oxyferrite heat resistant steel bar and preparation process thereof |
| CN103305747A (en) * | 2013-06-26 | 2013-09-18 | 李会民 | Steel bar or steel claw section for electric conduction of electrolytic aluminum and manufacturing method of steel bar or steel claw section |
| CN103603011A (en) * | 2013-12-02 | 2014-02-26 | 青海金润冶金矿业有限公司 | Energy-saving environment-friendly steel-aluminium alloy structural anode steel claw |
| CN204298472U (en) * | 2014-11-20 | 2015-04-29 | 中南大学 | A kind of cathode construction reducing aluminium cell hearth and bottom |
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2017
- 2017-09-14 CN CN201710827239.XA patent/CN107541751A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102002732A (en) * | 2010-12-02 | 2011-04-06 | 云南云铝涌鑫铝业有限公司 | Preparation method of phosphorus pig iron cathode for aluminum electrolysis |
| CN102392184A (en) * | 2011-12-15 | 2012-03-28 | 钢铁研究总院 | High temperature resistant oxyferrite heat resistant steel bar and preparation process thereof |
| CN103305747A (en) * | 2013-06-26 | 2013-09-18 | 李会民 | Steel bar or steel claw section for electric conduction of electrolytic aluminum and manufacturing method of steel bar or steel claw section |
| CN103603011A (en) * | 2013-12-02 | 2014-02-26 | 青海金润冶金矿业有限公司 | Energy-saving environment-friendly steel-aluminium alloy structural anode steel claw |
| CN204298472U (en) * | 2014-11-20 | 2015-04-29 | 中南大学 | A kind of cathode construction reducing aluminium cell hearth and bottom |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110184539A (en) * | 2019-06-04 | 2019-08-30 | 甘肃酒钢集团宏兴钢铁股份有限公司 | A kind of low cost high-conductivity electrodes band steel and its smelting process |
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Application publication date: 20180105 |