CN102206085A - Novel furnace lining material used for smelting copper alloy and preparation method thereof - Google Patents
Novel furnace lining material used for smelting copper alloy and preparation method thereof Download PDFInfo
- Publication number
- CN102206085A CN102206085A CN2011100803266A CN201110080326A CN102206085A CN 102206085 A CN102206085 A CN 102206085A CN 2011100803266 A CN2011100803266 A CN 2011100803266A CN 201110080326 A CN201110080326 A CN 201110080326A CN 102206085 A CN102206085 A CN 102206085A
- Authority
- CN
- China
- Prior art keywords
- lining material
- furnace lining
- copper alloy
- high alumina
- zro
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Abstract
The invention discloses a novel furnace lining material used for smelting copper alloy. The novel furnace lining material comprises the following components in percentage by weight: 80.00-90.00 percent of electrically smelted MgO-ZrO2 with a grain size of 500-2,000 microns and 10.00-20.00 percent of high alumina sand with a grain size of 50-200 microns. The invention also discloses a preparation method of the furnace lining material. According to the furnace lining material and the preparation method provided by the invention, the sintering temperature is reduced, the sintering at lower temperature is realized, the furnace lining material is difficult to crack, the service life is prolonged, and the yield of active element is increased.
Description
Technical field
The present invention relates to metallurgical technology field, particularly relate to a kind of novel smelting copper alloy furnace lining material and preparation method thereof.
Background technology
Along with deepening continuously that metallic substance is studied, add elements such as calcium, magnesium, zirconium, aluminium, titanium, zinc, iron in the copper alloy and can significantly improve the performance of some aspect of material, thereby receive increasing concern.But, because this dvielement is very active, when melting these elements at high temperature with furnace lining or crucible material reaction commonly used, problem such as the recovery rate of element is low when causing melting, and fusion process interalloy composition is wayward.In some cases, adopt existing furnace lining material alloy melting not carry out.
For example, chromium zirconium copper has high intensity and favorable conductive, heat conductivility, therefore is widely used in high-strength, height and leads the field, as preparation bullet train osculatory, resistance welding electrode, conticaster crystallizer liner, circuit lead frame, contact material etc.And the suitability for industrialized production that contains zirconium copper alloy at first will solve the problem of alloy melting.Zr element is very active, and easy and other elements react and scaling loss, therefore must solve the burning problems of zr element when melting zirconium copper.Vacuum melting is adopted in the production of zirconium copper both at home and abroad usually, causes problems such as production efficiency is low, cost is high, and is little in batches, has limited the application of chromium zirconium copper.
Adopt the commercial frequency cored induction furnace smelting copper alloy, have easy to operately, rate of heating is fast, saves electric energy, and cupola drop is convenient, and melting cost is low, is applicable to series of advantages such as continuous casting.Therefore, under the certain protection measure, adopt commercial frequency cored induction furnace atmosphere melting chromium zirconium copper to have very big practicality and economic worth.In addition, the scaling loss of the zirconium that causes in order to reduce because with crucible material reaction during the melting of chromium zirconium copper, generally adopts graphite or highly-purity magnesite crucible.Graphite can not be as the furnace lining material of commercial frequency cored induction furnace cupola drop.The general molten coppersmith channel induction furnace top temperature that can reach frequently is 1300～1400 ℃, and single highly-purity magnesite since sintering temperature more than 1700 ℃, therefore, magnesia is difficult to sintering on commercial frequency cored induction furnace.Therefore, must develop the novel furnace lining material of high stability, sintering temperature and low.
New by looking into, retrieve the relevant patent of following furnace lining material:
Application number is the patent of CN200710054710, relates to its raw material composition of a kind of magnesium gunning refractory for copper smelting-furnace and comprises aggregate, fine powder, wedding agent and additive; The raw material of described aggregate and fine powder is formed and is comprised fused magnesia-chrome, electrosmelted magnesite clinker, magnesite clinker, forsterite.The critical granularity of aggregate is 0.1～5mm, the granularity＜0.088mm of fine powder; Its weight ratio is: particle is the fused magnesia-chrome 0～20% of 3～5mm, magnesite clinker 10～30%, forsterite 0～20%; Particle is the magnesite clinker 10～40% of 1～3mm, forsterite 10～40%; Particle is the electrosmelted magnesite clinker 0～20% of 0.1～1mm, magnesite clinker 5～20%, forsterite 5～20%; Granularity＜0.088mm electrosmelted magnesite clinker 6～20%, forsterite 0～15%; Wedding agent 5%～15%; Additive 6%～20%.This material is used for nonferrous metal smelting furnace lining big area or the part position of deteriorating is sprayed, repairs, magnesian gunning refractory in this application, compare with highly-purity magnesite commonly used and all to have the higher characteristics of sintering temperature, because this material is used for spray repair, there is not the sintering problem in this magnesian gunning refractory.
Application number is that CN94110946 discloses a kind of acid burner lining refractory material for induction furnace prescription.It is by the crystallite quartz, wedding agent, and the mixture that mineralizer is formed is beaten reality through brickwork, and baker sinters the induction furnace acid lining into.Crystallite quartz wherein has following grating relation, and the content of the several 5～7# of mesh is 18～20%, and 10～20#'s is 18～22%, and 20～40#'s is 14～16%, and 50～100#'s is 19～21%, and 140～270#'s is 20～24%, and 600#'s is 2～4%; Wedding agent adopts boric anhydride (0.6～1.2%), and mineralizer adopts cupric oxide (0.08～0.10%).This furnace lining material is main component with the quartz, at high temperature zirconium and quartz reaction, the significantly recovery rate of reduction zirconium.
Application number be CN200710006059 patent disclosure one Albatra metal-holding furnace body material prescription.Make furnace lining at adopting acid refractory, the easy slagging scorification of smelting copper alloy holding furnace, slagging scorification is difficult to cleaning, need the cycle of little cleaning slagging scorification short, clear up slagging scorification greatly and need shortcomings such as blowing out power failure, the present invention adopts one of magnesia carbon brick, aluminum-carbon brick, magnesia-alumina-carbon brick to make insulation furnace body material, 11.5～14.8 times of the cycle stretch-outs of the little cleaning of slagging scorification need, slagging scorification is easy to cleaning, no longer needs the operation of the big cleaning slagging scorification of blowing out power failure, enhances productivity greatly.This application preferably is fit to do with useless composition brass holding furnace, the continuous casting holding furnace of feedstock production molten alloyed copper, also is fit to the smelting furnace body of heater material of copper alloy.
Summary of the invention
Purpose of the present invention provides a kind of novel smelting copper alloy with furnace lining material and preparation method thereof in order to overcome the deficiency of above-mentioned prior art furnace lining material, has realized sintering at a lower temperature, and not easy to crack, has prolonged work-ing life.
Technical solution of the present invention is as follows:
A kind of novel smelting copper alloy furnace lining material, characteristics are that its raw material granularity and weight percent consist of: granularity is the electric smelting MgO-ZrO of 500～2000um
280.00～90.00wt%; Granularity is high alumina sand 10.00～20.00wt% of 50～200um.
Described electric smelting MgO-ZrO
2Comprise MgO 90～98wt%; ZrO
22～10wt%; SiO
2Deng impurity≤2.0%.
Described high alumina sand contains SiO
2Deng impurity≤2.0%.
Preparing the novel smelting copper alloy comprises the steps: with the method for furnace lining material
1. with described electric smelting MgO-ZrO
2Mix with described high alumina sand, and ramming is solid;
2. be warming up to 1200～1500 ℃, insulation 2～3h, the electric smelting MgO-ZrO that described ramming is crossed
2Sinter furnace lining material into high alumina sand.
Technique effect of the present invention:
Compared with prior art, novel smelting copper alloy of the present invention with furnace lining material have that high-temperature stability is good, sintering temperature is low, not easy to crack, long service life can be used as the characteristics that melting contains the copper alloy of active element.
Description of drawings
Fig. 1 is varigrained magnesium zircon sand, high alumina sand sintering effect synoptic diagram.
Among the figure: 1-magnesium zircon sand; The 2-high alumina sand.
Embodiment
The invention will be further described below in conjunction with the drawings and specific embodiments, but should not limit protection scope of the present invention with this.
Embodiment 1.
Preparing the novel smelting copper alloy comprises the steps: with the method for furnace lining material
1. with granularity the electric smelting MgO-ZrO of 500～2000um
290.0wt% and granularity are that the high alumina sand 10.00wt% of 50～200um mixes, and ramming is solid;
2. commercial frequency cored induction furnace is warming up to 1200 ℃ with copper liquid, insulation 2h, the electric smelting MgO-ZrO that described ramming is crossed
2Sinter furnace lining material into high alumina sand.
Preparing the novel smelting copper alloy comprises the steps: with the method for furnace lining material
1. with granularity the electric smelting MgO-ZrO of 500～2000um
290.0wt% and granularity are that the high alumina sand 10.00wt% of 50～200um mixes, and ramming is solid;
2. commercial frequency cored induction furnace is warming up to 1500 ℃ with copper liquid, insulation 2h, the electric smelting MgO-ZrO that described ramming is crossed
2Sinter furnace lining material into high alumina sand.
Embodiment 3.
Preparing the novel smelting copper alloy comprises the steps: with the method for furnace lining material
1. with granularity the electric smelting MgO-ZrO of 500～2000um
285.0wt% and granularity are that the high alumina sand 15.00wt% of 50～200um mixes, and ramming is solid;
2. commercial frequency cored induction furnace is warming up to 1200 ℃ with copper liquid, insulation 2h, the electric smelting MgO-ZrO that described ramming is crossed
2Sinter furnace lining material into high alumina sand.
Embodiment 4.
1. with granularity the electric smelting MgO-ZrO of 500～2000um
285.0wt% and granularity are that the high alumina sand 15.00wt% of 50～200um mixes, and ramming is solid;
2. commercial frequency cored induction furnace is warming up to 1500 ℃ with copper liquid, insulation 2h, the electric smelting MgO-ZrO that described ramming is crossed
2Sinter furnace lining material into high alumina sand.
Embodiment 5.
1. with granularity the electric smelting MgO-ZrO of 500～2000um
280.0wt% and granularity are that the high alumina sand 20.00wt% of 50～200um mixes, and ramming is solid;
2. commercial frequency cored induction furnace is warming up to 1200 ℃ with copper liquid, insulation 2h, the electric smelting MgO-ZrO that described ramming is crossed
2Sinter furnace lining material into high alumina sand.
Embodiment 6.
1. with granularity the electric smelting MgO-ZrO of 500～2000um
280.0wt% and granularity are that the high alumina sand 20.00wt% of 50～200um mixes, and ramming is solid;
2. commercial frequency cored induction furnace is warming up to 1500 ℃ with copper liquid, insulation 2h, the electric smelting MgO-ZrO that described ramming is crossed
2Sinter furnace lining material into high alumina sand.
It is low that the principle of this method is based on high alumina sand surface melt temperature, by electric smelting MgO-ZrO
2With the mixing ramming of high alumina sand, make between the magnesium zircon sand particle and fill high alumina sand, reduce the sintering temperature of whole furnace lining material.And the high alumina sand high-temperature stability is not high, at high temperature easily with copper liquid in active element reaction, in order to protect in the copper liquid vivaciously element, should reduce the content of high alumina sand in the furnace lining material as far as possible.The furnace lining material that proposes for the dual the present invention of needs who realizes sintering and the active element of protection is to adopt less high alumina sand to be filled in the bigger magnesium zircon sand gap of granularity, as shown in Figure 1.
Below with the furnace lining material of embodiment of the invention 1-6; Granularity≤1000um, foreign matter content≤2.0% silica sand; Granularity≤1000um, foreign matter content≤2.0% high alumina sand; Granularity≤1000um, foreign matter content≤2.0% highly-purity magnesite; Contain MgO-ZrO
2The comparative material 1 of 95.0wt%, high alumina sand 15.00wt%; Contain MgO-ZrO
2The comparative material 2 of 75.0wt%, high alumina sand 25.00wt%; Be respectively applied on the vacuum induction melting furnace and experimentize.
(1) sintering character of material experiment: be heated to sintering under the differing temps with graphite core, use the infrared thermometer thermometric, it the results are shown in Table 1.
| Furnace lining material | Sintering temperature | The sintering situation |
| Embodiment 1 | 1200 | Well |
| Embodiment | ||
| 2 | 1500℃ | Well |
| Embodiment 3 | 1200℃ | Well |
| Embodiment 4 | 1500℃ | Well |
| Embodiment 5 | 1200℃ | Well |
| Embodiment 6 | 1500℃ | Well |
| Silica sand | 1200℃ | Well |
| Silica sand | 1500℃ | Well |
| High alumina sand | 1200℃ | Well |
| High alumina sand | 1500℃ | Well |
| Highly-purity magnesite | 1200℃ | Sintering not |
| Highly-purity magnesite | 1500℃ | Sintering not |
| Highly-purity magnesite | 1700℃ | Well |
| Comparative material 1 | 1200℃ | Sintering is poor |
| Comparative material 1 | 1500℃ | Sintering is poor |
| |
1200℃ | |
| Comparative material | ||
| 2 | 1500℃ | Well |
Table 1
(2) melting of zirconium copper alloy experiment: electrolytic copper is added in the stove that sinters, be warming up to copper and all melt, add the deoxidation of Mg copper, add and contain zirconium 20wt.% copper zirconium master alloy.Stove is evacuated to≤10
-4Pa charges into argon gas, and pressure 0.3～0.6 normal atmosphere is at 1200～1300 ℃ of insulations down, insulation 0.5～1h, furnace cooling.Calculate the recovery rate of zirconium according to the initial add-on of the content of zirconium in the ingot casting and zirconium.
Calculating formula is: in the recovery rate=ingot casting of zirconium during the different furnace lining material melting of the initial adding content of the content/zirconium of zirconium zirconium copper the recovery rate of zirconium see Table 2.
| Furnace lining material | 0.5h the recovery rate of zirconium (%) | The recovery rate of 1h zirconium (%) |
| Embodiment 1 | 39 | 22 |
| |
43 | 23 |
| Embodiment 3 | 46 | 30 |
| Embodiment 4 | 46 | 28 |
| Embodiment 5 | 44 | 27 |
| Embodiment 6 | 42 | 26 |
| Silica sand | 3 | ＜1 |
| High alumina sand | 5 | 1.3 |
| Highly-purity magnesite | 67 | 42 |
| Comparative material 1 | 53 | 37 |
| |
29 | 15 |
Table 2
By with the experimental verification of melting zirconium copper, with commonly used with SiO
2Or Al
2O
3Be that main furnace lining material is compared, significantly improved the recovery rate height of zirconium, the recovery rate after 1250 ℃ of following 1h are incubated improves about 20～30%.Novel smelting copper alloy of the present invention is compared with single magnesia with furnace lining material simultaneously, reduced sintering temperature (being reduced to 1200 ℃) significantly from 1700 ℃, realized sintering (can reach this sintering temperature on the commercial frequency cored induction furnace) at a lower temperature, and be not easy cracking, prolonged work-ing life.The furnace lining material of invention is from the recovery rate of active element, and these several respects of work-ing life and sintering all are better than existing furnace lining material.
Claims (4)
1. novel smelting copper alloy furnace lining material, it is characterized in that weight percent consists of: granularity is the electric smelting MgO-ZrO of 500～2000um
280.00～90.00wt%; Granularity is high alumina sand 10.00～20.00wt% of 50～200um.
2. novel smelting copper alloy furnace lining material according to claim 1 is characterized in that described electric smelting MgO-ZrO
2Comprise MgO 90～98wt%; ZrO
22～10wt%; SiO
2Deng impurity≤2.0%.
3. novel smelting copper alloy furnace lining material according to claim 1 is characterized in that described high alumina sand contains SiO
2Deng impurity≤2.0%.
4. prepare the method for the described novel smelting copper alloy of claim 1, it is characterized in that this method comprises the steps: with furnace lining material
1. with described electric smelting MgO-ZrO
2Mix with described high alumina sand, and ramming is solid;
2. be warming up to 1200～1500 ℃, insulation 2～3h, the electric smelting MgO-ZrO that described ramming is crossed
2Sinter furnace lining material into high alumina sand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100803266A CN102206085A (en) | 2011-03-31 | 2011-03-31 | Novel furnace lining material used for smelting copper alloy and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100803266A CN102206085A (en) | 2011-03-31 | 2011-03-31 | Novel furnace lining material used for smelting copper alloy and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102206085A true CN102206085A (en) | 2011-10-05 |
Family
ID=44695185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100803266A Pending CN102206085A (en) | 2011-03-31 | 2011-03-31 | Novel furnace lining material used for smelting copper alloy and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102206085A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102731127A (en) * | 2012-07-25 | 2012-10-17 | 大石桥市东兴耐火材料有限公司 | Manufacture technology of electrically molten magnesium-zirconium eutectic crystal material |
| CN114353529A (en) * | 2022-01-12 | 2022-04-15 | 新疆八钢佳域工业材料有限公司 | Furnace lining baking method for zinc melting intermediate frequency furnace |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101177350A (en) * | 2007-01-25 | 2008-05-14 | 宁波金田铜业(集团)股份有限公司 | Copper alloy holding furnace body material |
| CN101423399A (en) * | 2007-10-31 | 2009-05-06 | 姚冰 | Method for producing furnace bladder material |
| CN101907402A (en) * | 2010-08-06 | 2010-12-08 | 广州钢铁企业集团有限公司 | Blow pipe for copper smelting furnace and manufacturing method thereof |
-
2011
- 2011-03-31 CN CN2011100803266A patent/CN102206085A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101177350A (en) * | 2007-01-25 | 2008-05-14 | 宁波金田铜业(集团)股份有限公司 | Copper alloy holding furnace body material |
| CN101423399A (en) * | 2007-10-31 | 2009-05-06 | 姚冰 | Method for producing furnace bladder material |
| CN101907402A (en) * | 2010-08-06 | 2010-12-08 | 广州钢铁企业集团有限公司 | Blow pipe for copper smelting furnace and manufacturing method thereof |
Non-Patent Citations (3)
| Title |
|---|
| 周立刚等: "中频感应电炉中性炉衬湿法筑炉经验", 《铸造》, vol. 55, no. 12, 31 December 2006 (2006-12-31), pages 1302 - 1304 * |
| 张鹏远: "高铝矾土-电熔镁砂在中频无芯感应电炉上的应用", 《特种铸造及有色合金》, no. 6, 27 December 1986 (1986-12-27), pages 48 - 56 * |
| 郭岚等: "MgO-ZrO2-Al2O3耐火材料组分的研制", 《耐火与石灰》, vol. 33, no. 5, 31 October 2008 (2008-10-31) * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102731127A (en) * | 2012-07-25 | 2012-10-17 | 大石桥市东兴耐火材料有限公司 | Manufacture technology of electrically molten magnesium-zirconium eutectic crystal material |
| CN102731127B (en) * | 2012-07-25 | 2013-11-27 | 大石桥市东兴耐火材料有限公司 | Manufacture technology of electrically molten magnesium-zirconium eutectic crystal material |
| CN114353529A (en) * | 2022-01-12 | 2022-04-15 | 新疆八钢佳域工业材料有限公司 | Furnace lining baking method for zinc melting intermediate frequency furnace |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101863672B (en) | Preparation method of alumina corundum hollow sphere | |
| CN104889401A (en) | Method for preparing CuCr25 electrical contact | |
| CN101890492A (en) | Slag for liquid pouring of electroslag | |
| CN103467120A (en) | Non-phosphorus and low-carbon alumina-magnesia unburned brick for stainless steel ladle and manufacturing method of brick | |
| CN113213897B (en) | Steel ladle low-carbon aluminum-magnesium-carbon brick | |
| CN103849787A (en) | Method for preparing aerospace-level vanadium-aluminium alloy | |
| CN102838360A (en) | Composite fireproof material and preparation method thereof | |
| CN113292321B (en) | Steel ladle low-carbon working lining brick | |
| CN102838361A (en) | MgCa-SiC-C fireproof material and preparation method thereof | |
| CN103030410A (en) | Aluminum magnesium chromium composited spinel brick | |
| CN102241520B (en) | Method for melting and casting alpha alumina product | |
| CN103276241B (en) | Titanium aluminum silicon alloy material and preparation method thereof | |
| CN106493321A (en) | Steel-making tundish covering flux and preparation method thereof | |
| CN107062900B (en) | A kind of alternating current arc smelting furnace | |
| CN202066345U (en) | Smelting furnace suitable for copper alloy furnace liner | |
| CN100453502C (en) | Production method of electric melting magnesium-aluminium-zirconium synthetic material | |
| CN107218800B (en) | A kind of direct current electric arc furnace | |
| CN102206085A (en) | Novel furnace lining material used for smelting copper alloy and preparation method thereof | |
| CN102559996A (en) | New silicon-aluminum-barium-calcium multicomponent deoxidation alloy for steelmaking and preparation technology thereof | |
| CN109776100A (en) | Vacuum induction melting coating | |
| CN102951913A (en) | Isostatic compaction corundum spinel crucible and preparation method thereof | |
| CN102261841B (en) | Crucible cover, manufacturing method thereof and crucible furnace provided with crucible cover | |
| US1954552A (en) | Basic refractory amd method of | |
| CN1995885A (en) | Titanium and titanium alloy melting kettle | |
| CN104193318A (en) | Preparation technique of magnesia alumina spinel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20111005 |