CN105463200A - Arc striking agent for electroslag remelting and arc striking method - Google Patents
Arc striking agent for electroslag remelting and arc striking method Download PDFInfo
- Publication number
- CN105463200A CN105463200A CN201610020094.8A CN201610020094A CN105463200A CN 105463200 A CN105463200 A CN 105463200A CN 201610020094 A CN201610020094 A CN 201610020094A CN 105463200 A CN105463200 A CN 105463200A
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- CN
- China
- Prior art keywords
- arc striking
- striking agent
- agent
- striking
- slag
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Classifications
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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
Abstract
The invention relates to an arc striking agent for electroslag remelting and an arc striking method, and belongs to the field of electroslag remelting. The arc striking agent adopts steel scrap with the same material as a remelting electrode blank. The preparation method of the arc striking agent comprises the steps of removing rust, greasy dirt, cooling liquid and scale on the surface of the steel scrap with the thickness ranging from 1 mm to 2 mm, placing the steel scrap into a slag furnace for baking for two hours and carrying out air cooling, wherein the baking temperature is 480+/-20 DEG C, then arc striking agent base material with the length ranging from 25 mm to 40 mm and the width ranging from 10 mm to 15 mm can be manufactured, and finally the arc striking agent base material and pseudo-ginseng residues are made into the arc striking agent according to the mass ratio of 4 to 1 before use. According to the invention, the arc striking agent adopts the waste steel scrap with the same material as the remelting electrode blank, and therefore waste reuse is realized; high-temperature melting is not needed for the arc striking agent, and therefore the labor intensity and the cost of raw material are greatly lowered, secondary pollution and energy waste caused by manufacturing of the arc striking agent are avoided, the production cost is lowered, pollution to the environment is reduced, and low-titanium steel can be smelted.
Description
Technical field
The present invention relates to a kind of esr striking agent and striking method, belong to esr field.
Background technology
Esr in water mold, utilizes electric current by the resistance heat that produces during slag by metal or alloy refuse and refining, and consecutive solidification becomes a kind of Metallurgical Means of ingot metal or foundry goods.Tradition esr striking agent adopts TiO
2powder, CaF
2powder, CaO powder, and high melt is formed after mixing.From this kind of striking agent making method, need the operations such as high melt, cooling, fragmentation because of it, therefore its labour intensity is large, and causes secondary pollution and energy dissipation, cost of manufacture is higher simultaneously; Assign to from the one-tenth contained by its raw material, because traditional striking agent adopts TiO
2powder, as main raw material, causes Ti content in striking agent relatively high, therefore this kind of striking agent is not suitable for smelting the steel grade lower to Ti requirement.
Summary of the invention
The object of the present invention is to provide a kind of cost of manufacture low, a kind of esr striking agent and the striking method of low titanium steel kind can be smelted.
The object of the invention realizes in the following manner: a kind of esr striking agent, and striking agent employing and resmelting electrode base are with the steel cuttings of material.
After the corrosion on the steel cuttings surface of the preparation of striking agent: by thickness: 1 ~ 2mm, greasy dirt, cooling fluid, iron scale crude removal, put into slag charge stove to toast, storing temperature is: 480 ± 20 DEG C, toast after 2 hours, air cooling, makes length: 25 ~ 40mm, width: the striking agent base-material of 10 ~ 15mm, before using, the ratio of striking agent base-material and pseudo-ginseng slag 4:1 is in mass ratio made striking agent.
Utilize a method for esr striking agent striking, comprise the following steps: first electroslag remelting furnace is put in striking agent, the striking voltage in electroslag remelting furnace is set to 75 ~ 78V, and electric current rises to 8.0 ~ 8.5KA gradually by 3KA in 10min.
The starting the arc agent amount of putting into is that the specification of crystallizer is consistent.
The present invention, in arc process, when there being arc light in electroslag remelting furnace, adding slag and covering in electroslag remelting furnace, and slag adds to arc light and disappears, and then on slag coverage rate, add the slag of 2-3mm height again.
Striking agent of the present invention adopts discarded with the steel cuttings of resmelting electrode base with material, utilization of waste material, this striking agent is without the need to high melt, its labour intensity and raw materials cost reduce greatly, can not cause and produce secondary pollution and energy dissipation because making striking agent, reduce costs production cost, decreased the pollution to environment, and the problem of the low titanium steel kind of smelting is resolved.
Embodiment
embodiment:
When producing striking agent, select the material of material identical with resmelting electrode base, to adopt turning or planer processing mode to prepare specification be length is (25 ~ 40) mm, and width is (10 ~ 15) mm, is highly that the steel cuttings of (1 ~ 2) mm is as striking agent.Steel cuttings is put into slag charge stove and is toasted after first cleaning out the corrosion on steel cuttings surface, greasy dirt, cooling fluid, iron scale dirt before use.Storing temperature is: (480 ± 20) DEG C, toasts after 2 hours, air cooling.Adopt striking agent shop fixtures, it is identical with crystallizer specification that the paving of striking agent enters amount.
Before using, the striking agent base-material made by steel cuttings mixes by the mass ratio of 4:1 and pseudo-ginseng slag, and pseudo-ginseng slag is CaF
2and Al
2o
3, 7:3 carries out proportioning in mass ratio.When utilizing this starting the arc agent starting the arc, first electroslag remelting furnace is put in striking agent, voltage is set to (75 ~ 78) V, then manually striking electric current is raised gradually by 3KA, in the process of manual setting electric current, when operator see in electroslag remelting furnace have arc light time, in electroslag remelting furnace, add slag charge immediately, arc light is covered, and then on slag coverage rate, adds the slag of 2-3mm height again.Proceed to automatic control when electric current is increased to (8.0 ~ 8.5) KA, automatic control system adopts computer control.Because the Computer Control Technology in esr belongs to existing mature technology, so the present embodiment does not provide the concrete structure and control program that automatically control.
Claims (5)
1. an esr striking agent, is characterized in that, striking agent employing and resmelting electrode base are with the steel cuttings of material.
2. a kind of esr striking agent according to claim 1, it is characterized in that, after the corrosion on the steel cuttings surface of the preparation of striking agent: by thickness: 1 ~ 2mm, greasy dirt, cooling fluid, iron scale crude removal, put into slag charge stove and toast, storing temperature is: 480 ± 20 DEG C, toast after 2 hours, air cooling, makes length: 25 ~ 40mm, width: the striking agent base-material of 10 ~ 15mm, before using, after the ratio of striking agent base-material and pseudo-ginseng slag 4:1 in mass ratio being mixed, make striking agent.
3. one kind utilizes the method for esr striking agent striking, it is characterized in that, comprise the following steps: first electroslag remelting furnace is put in striking agent, the striking voltage in electroslag remelting furnace is set to 75 ~ 78V, electric current rises to 8.0 ~ 8.5KA gradually by 3KA in 10min.
4. the method for striking according to claim 3, is characterized in that, the starting the arc agent amount of putting into is that the specification of crystallizer is consistent.
5. starting the arc method according to claim 3, it is characterized in that: in arc process, when there being arc light in electroslag remelting furnace, in electroslag remelting furnace, adding slag cover, slag adds to arc light and disappears, and then on slag coverage rate, add the slag of 2-3mm height again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610020094.8A CN105463200A (en) | 2016-01-13 | 2016-01-13 | Arc striking agent for electroslag remelting and arc striking method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610020094.8A CN105463200A (en) | 2016-01-13 | 2016-01-13 | Arc striking agent for electroslag remelting and arc striking method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105463200A true CN105463200A (en) | 2016-04-06 |
Family
ID=55601352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610020094.8A Pending CN105463200A (en) | 2016-01-13 | 2016-01-13 | Arc striking agent for electroslag remelting and arc striking method |
Country Status (1)
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| CN (1) | CN105463200A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106244819A (en) * | 2016-08-25 | 2016-12-21 | 江苏申源特钢有限公司 | A kind of striking agent of electroslag remelting and preparation method thereof |
| CN106987726A (en) * | 2017-03-08 | 2017-07-28 | 中钢集团邢台机械轧辊有限公司 | The method of electroslag remelting cold start-up |
| CN107338362A (en) * | 2017-06-27 | 2017-11-10 | 中原特钢股份有限公司 | A kind of electroslag novel conductive slag and preparation method thereof |
| CN109487091A (en) * | 2019-01-11 | 2019-03-19 | 辽宁科技大学 | A kind of electroslag remelting striking agent and preparation method |
| CN113430392A (en) * | 2021-06-18 | 2021-09-24 | 山西太钢不锈钢股份有限公司 | Efficient arc striking method for large-end-face electrode blank for electroslag smelting |
| CN114410976A (en) * | 2021-12-15 | 2022-04-29 | 洛阳中重铸锻有限责任公司 | Low-frequency electroslag remelting arc striking agent and preparation method thereof |
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| 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 |
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| WO2002040197A2 (en) * | 2000-11-15 | 2002-05-23 | Ati Properties, Inc. | Refining and casting apparatus and method |
| CN101928839A (en) * | 2009-06-25 | 2010-12-29 | 宝山钢铁股份有限公司 | Slag system for electroslag remelting of manganese-based alloy steel and using method thereof |
| CN102409181A (en) * | 2011-11-25 | 2012-04-11 | 山西太钢不锈钢股份有限公司 | Preparation method of electroslag remelting slag |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106244819A (en) * | 2016-08-25 | 2016-12-21 | 江苏申源特钢有限公司 | A kind of striking agent of electroslag remelting and preparation method thereof |
| CN106244819B (en) * | 2016-08-25 | 2018-12-28 | 江苏申源特钢有限公司 | A kind of striking agent of electroslag remelting and preparation method thereof |
| CN106987726A (en) * | 2017-03-08 | 2017-07-28 | 中钢集团邢台机械轧辊有限公司 | The method of electroslag remelting cold start-up |
| CN107338362A (en) * | 2017-06-27 | 2017-11-10 | 中原特钢股份有限公司 | A kind of electroslag novel conductive slag and preparation method thereof |
| CN109487091A (en) * | 2019-01-11 | 2019-03-19 | 辽宁科技大学 | A kind of electroslag remelting striking agent and preparation method |
| CN109487091B (en) * | 2019-01-11 | 2020-09-22 | 辽宁科技大学 | Electroslag remelting arc striking agent and preparation method thereof |
| CN113430392A (en) * | 2021-06-18 | 2021-09-24 | 山西太钢不锈钢股份有限公司 | Efficient arc striking method for large-end-face electrode blank for electroslag smelting |
| CN113430392B (en) * | 2021-06-18 | 2022-07-01 | 山西太钢不锈钢股份有限公司 | Efficient arc striking method for large-end-face electrode blank for electroslag smelting |
| CN114410976A (en) * | 2021-12-15 | 2022-04-29 | 洛阳中重铸锻有限责任公司 | Low-frequency electroslag remelting arc striking agent and preparation method thereof |
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Application publication date: 20160406 |
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