CN106987726A - The method of electroslag remelting cold start-up - Google Patents
The method of electroslag remelting cold start-up Download PDFInfo
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- CN106987726A CN106987726A CN201710132954.1A CN201710132954A CN106987726A CN 106987726 A CN106987726 A CN 106987726A CN 201710132954 A CN201710132954 A CN 201710132954A CN 106987726 A CN106987726 A CN 106987726A
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- cold start
- striking agent
- agent
- starting
- electroslag remelting
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
- C22B9/16—Remelting metals
- C22B9/18—Electroslag remelting
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- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
- Discharge Heating (AREA)
Abstract
The invention discloses a kind of method of electroslag remelting cold start-up, belong to metallurgical technology field, including make column striking agent, striking agent is highly 100~130mm, a diameter of 80~120mm；Cold start-up is carried out, after cold start-up, starting starting current is 12000~16000A, and it is 70~80 volts that starting, which starts voltage, realize steady cold start-up, it is 0.8 that striking agent, which includes percentage by weight,:1~1.2:1 Fluorspar Powder and graphite electrode powder, the two preferred weight percent is 1:1.ESR ingot product quality of the present invention is stable, and cheap, stove price is only 40 yuan, stove 3600 yuan of smelting cost of reduction, according to 13 tons of calculating of stove, and ton reduces by 277 yuan of cost, and productivity effect is significantly improved.
Description
Technical field
The present invention relates to a kind of method of electroslag remelting cold start-up, belong to metallurgical technology field.
Background technology
Originally cold start-up needs to use steel cuttings, and steel cuttings usage amount is larger, up to 100 kilograms, because steel cuttings price is higher
（40000 yuan/ton）, in order to reduce cold start-up cost, it is necessary to develop a kind of new cold start-up method, with meet it is energy-saving, carry
The target of high productivity effect.
The content of the invention
The technical problem to be solved in the invention is to provide a kind of method of electroslag remelting cold start-up, to meet energy-conservation drop
Consumption, the target for improving productivity effect.
In order to solve the above technical problems, the technical solution adopted in the present invention is：
A kind of method of electroslag remelting cold start-up, is started, starting step is using striking agent：
Step A, making column striking agent, striking agent are highly 100~130mm, a diameter of 80~120mm；
Step B, carry out cold start-up, after cold start-up, starting starting current is 12000~16000A, starting start voltage for 70~
80 volts, realize steady cold start-up.
Technical solution of the present invention further improvement is that：Striking agent include Fluorspar Powder and graphite electrode powder, Fluorspar Powder and
The percentage by weight of graphite electrode powder is 0.8:1~1.2:1, striking agent is column.
Technical solution of the present invention further improvement is that：Striking agent highly be 110mm, a diameter of 100mm, Fluorspar Powder and
The percentage by weight of graphite electrode powder is 1:1, the mesh of the granularity of graphite electrode powder≤200.
Technical solution of the present invention further improvement is that：Starting starting current is 14000A, and it is 75 that starting, which starts voltage,
Volt.
Technical solution of the present invention further improvement is that：The process of cold start-up is in step B：If being placed on box is started
Slag charge is placed in the middle of dry striking agent, striking agent, consutrode bottom contacting ignition arc agent, voltage passes through consutrode contacting ignition arc
Agent, the slag charge between striking agent arcing fusing striking agent, reaches the cold start-up of slag charge fusing.
Technical solution of the present invention further improvement is that：Striking agent usage amount is 3~8 pieces.
Technical solution of the present invention further improvement is that：Striking agent is arranged circumferentially on startup box.
By adopting the above-described technical solution, the technological progress that the present invention is obtained is：Entered at present using homemade striking agent
Row cold start-up, its is cheap, and stove price is only 40 yuan, and stove 3600 yuan of smelting cost of reduction, ton reduces by 277 yuan of cost（According to
13 tons of calculating of stove）, while the ESR ingot product quality produced is stable, productivity effect is significantly improved.
Embodiment
The present invention is described in further details with reference to embodiment：
A kind of method of electroslag remelting cold start-up, is started, starting step is using striking agent：
Step A, making column striking agent, striking agent are highly 100~130mm, a diameter of 80~120mm；
Step B, carry out cold start-up, after cold start-up, starting starting current is 12000~16000A, starting start voltage for 70~
80 volts, realize steady cold start-up.
Striking agent includes Fluorspar Powder and graphite electrode powder, and the percentage by weight of Fluorspar Powder and graphite electrode powder is 0.8:1~
1.2:1, such as percentage by weight of Fluorspar Powder and graphite electrode powder can be 0.9:1 or 1.1:1, striking agent is column.
Striking agent is highly 110mm, a diameter of 100mm, and the percentage by weight of Fluorspar Powder and graphite electrode powder is 1:1, stone
The mesh of the granularity of electrode ink powder≤200, granularity is the smaller the better.
It is preferably 14000A to originate starting current, and it is preferably 75 volts that starting, which starts voltage, starts effect preferable.
The process of cold start-up is by taking 15 tons of electroslag furnaces as an example in step B：
Column is placed on the bottom water tank of electroslag furnace and starts box, it is 800mm to start the high 100mm of box, basal diameter, is starting box
Circumferential at diameter 500mm to place the good striking agent of 3~4 pieces of processing and fabricatings, striking agent is starting the placement of box circumferencial direction respectively, drawn
Slag charge is placed in the middle of arc agent.Consutrode bottom contacting ignition arc agent, voltage passes through consutrode contacting ignition arc agent, striking agent arcing
The slag charge between striking agent is melted, the purpose of slag charge fusing is reached.
Striking agent usage amount is 3~8 pieces, can such as use 5 pieces, 6 pieces, 7 pieces, 8 pieces, adjust as the case may be.
Claims (7)
1. a kind of method of electroslag remelting cold start-up, it is characterised in that：Started using striking agent, starting step is：
Step A, making column striking agent, striking agent are highly 100~130mm, a diameter of 80~120mm；
Step B, carry out cold start-up, after cold start-up, starting starting current is 12000~16000A, starting start voltage for 70~
80 volts, realize steady cold start-up.
2. the method for electroslag remelting cold start-up according to claim 1, it is characterised in that：Striking agent includes Fluorspar Powder and stone
The percentage by weight of electrode ink powder, Fluorspar Powder and graphite electrode powder is 0.8:1~1.2:1, striking agent is column.
3. the method for electroslag remelting cold start-up according to claim 2, it is characterised in that：Striking agent is highly 110mm, directly
Footpath is 100mm, and the percentage by weight of Fluorspar Powder and graphite electrode powder is 1:1, the mesh of the granularity of graphite electrode powder≤200.
4. the method for electroslag remelting cold start-up according to claim 3, it is characterised in that：Originating starting current is
14000A, it is 75 volts that starting, which starts voltage,.
5. the method for the electroslag remelting cold start-up according to any one of Claims 1 to 4, it is characterised in that：It is cold in step B to open
Dynamic process is：Placed on box is started and slag charge, consutrode bottom contacting ignition arc are placed in the middle of some striking agent, striking agent
Agent, voltage is by consutrode contacting ignition arc agent, and the slag charge between striking agent arcing fusing striking agent reaches the cold of slag charge fusing
Start.
6. the method for electroslag remelting cold start-up according to claim 5, it is characterised in that：Striking agent usage amount is 3~8
Block.
7. the method for electroslag remelting cold start-up according to claim 5, it is characterised in that：Striking agent is arranged circumferentially in startup
On box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710132954.1A CN106987726B (en) | 2017-03-08 | 2017-03-08 | The method of electroslag remelting cold start-up |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710132954.1A CN106987726B (en) | 2017-03-08 | 2017-03-08 | The method of electroslag remelting cold start-up |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106987726A true CN106987726A (en) | 2017-07-28 |
| CN106987726B CN106987726B (en) | 2019-06-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710132954.1A Active CN106987726B (en) | 2017-03-08 | 2017-03-08 | The method of electroslag remelting cold start-up |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104451178A (en) * | 2014-12-22 | 2015-03-25 | 重庆材料研究院有限公司 | Electroslag remelting method of large-size, super-pure and high-property nickel base alloy 690 |
| CN104726721A (en) * | 2015-02-13 | 2015-06-24 | 中钢集团邢台机械轧辊有限公司 | Electroslag ignition agent and preparation method thereof |
| CN104745831A (en) * | 2013-12-30 | 2015-07-01 | 大冶特殊钢股份有限公司 | Carbon conductive slag for electroslag steel smelting |
| CN105463200A (en) * | 2016-01-13 | 2016-04-06 | 内蒙古北方重工业集团有限公司 | Arc striking agent for electroslag remelting and arc striking method |
| CN106011371A (en) * | 2016-06-24 | 2016-10-12 | 东北大学 | Pressurizing induction and pressurizing electroslag remelting duplex high-nitrogen steel smelting method |
-
2017
- 2017-03-08 CN CN201710132954.1A patent/CN106987726B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104745831A (en) * | 2013-12-30 | 2015-07-01 | 大冶特殊钢股份有限公司 | Carbon conductive slag for electroslag steel smelting |
| CN104451178A (en) * | 2014-12-22 | 2015-03-25 | 重庆材料研究院有限公司 | Electroslag remelting method of large-size, super-pure and high-property nickel base alloy 690 |
| CN104726721A (en) * | 2015-02-13 | 2015-06-24 | 中钢集团邢台机械轧辊有限公司 | Electroslag ignition agent and preparation method thereof |
| CN105463200A (en) * | 2016-01-13 | 2016-04-06 | 内蒙古北方重工业集团有限公司 | Arc striking agent for electroslag remelting and arc striking method |
| CN106011371A (en) * | 2016-06-24 | 2016-10-12 | 东北大学 | Pressurizing induction and pressurizing electroslag remelting duplex high-nitrogen steel smelting method |
Non-Patent Citations (1)
| Title |
|---|
| 张洲: ""碳质引弧剂代替钛质导电渣引弧生产G20CrNi2MoA电渣钢"", 《特殊钢》 * |
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| CN106987726B (en) | 2019-06-21 |
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