CN1377981A - Process for producing composite inoculant (block) by double smelting furnace of ore-smelting furnace and medium frequency (industry frequency) electric furnace - Google Patents
Process for producing composite inoculant (block) by double smelting furnace of ore-smelting furnace and medium frequency (industry frequency) electric furnace Download PDFInfo
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- CN1377981A CN1377981A CN 01112291 CN01112291A CN1377981A CN 1377981 A CN1377981 A CN 1377981A CN 01112291 CN01112291 CN 01112291 CN 01112291 A CN01112291 A CN 01112291A CN 1377981 A CN1377981 A CN 1377981A
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Abstract
The composite inoculant contains Si as main component and one or more of Ba, Ca, Re, Sr, Zr, Mg, Cr, Bi, Sb, etc. The composite alloy is made through intermediate ladle blending or medium frequency furnace smelting and blending, nitrogen stirring, crushing to required size or casting. The present invention has the advantages of accurate and homogeneous inoculant components, low production cost, etc.
Description
The present invention relates to the production technique of the hot stove in a kind of ore deposit, intermediate frequency (power frequency) electric furnace duplex oven production composite inoculant (piece), widely used indispensable industrial additive in a kind of specifically casting industry.
The present known composite alloy of producing Si-Ba-Ca, Si-Sr, two kinds of Si-Zr (writing out Chinese before every section symbol) or three kinds of elements of the hot stove in ore deposit, and produced genetic restriction, can not carry out the adjustment of element and composition scope on request.And in the adjustment process, the process product is more, causes very big waste, and intermediate frequency (power frequency) the electric furnace then iron alloy of available various elements carries out arbitrarily compoundly, but heavily bakes the cost height, and oxidation, the scaling loss of alloying element are serious.
A kind of silicon based inoculant that makes that the objective of the invention is to provide at the deficiencies in the prior art part is at a kind of ore deposit heat of function inoculant elements kind and the random adjustment of composition scope, the new process of production that intermediate frequency (power frequency) electric furnace duplex oven is produced composite inoculant (piece).
The objective of the invention is to take following measure to realize:
The technology that the hot stove in a kind of ore deposit, intermediate frequency (power frequency) electric furnace duplex smelting furnace are produced composite inoculant (piece) is characterized in that:
(1) the composition scope of nucleating agent requirement is (%)
Nucleating agent is based on silicon, compound with one or more many plain composite alloys such as Ba, Re, Sr, Zr, Mg, Cr, Bi, Sb, wherein: Si:60-65, Ca:2.0-2.5, Ba:4.0-5.0, Ra:2.0-3.0, Bi:1.0-1.5, other elementary composition does not wait;
(2) technical process is as follows:
In thermal mineral furnace, smelt, contain the alloy liquid of the higher functional element of one or more content based on silicon.According to other functional element proportion requirement, take tundish to dash a little or intermediate frequency (power frequency) stove is molten, after skimming, carry out nitrogen and stir, further remove oxide compound and be mingled with uniform temperature, composition pours into the alloy wharve, treat alloy pig cooling after, be crushed to the granularity of requirement or cast inoculant block.
Positively effect of the present invention is:
1, can produce silica-based and nucleating agent any several functionalities elements compounding;
2, nucleating agent composition precise control, even;
3, reduced production cost.
Fig. 1 is a process flow sheet of the present invention.
Below in conjunction with accompanying drawing enforcement of the present invention is described in detail:
With the multicomponent alloy of mine heat furnace smelting silicon (SI:55-72), calcium (Ca:0.5-3.5), rare earth (Re:0.5-6.0), smelt come out of the stove after, pour liquid alloy into 6 tons of intermediate frequency furnaces (melting, insulation difunctional), add Si-Ba alloy again, the low power melting.And in this stage, carry out the quick test of iron (Fe), silicon (Si), rare earth (Re), the polynary content of calcium (Ca), through assay be: Si:65.3, Ca:2.8, Re:3.4, so add Si-Ba alloy (Ba:27%, Si:55%) 16.7Kg, molten coming out of the stove clearly to pouring ladle behind bismuth metal (Bi) 1.5Kg, the steel scrap 1.8Kg, in bag, carry out nitrogen and stir, further remove oxide compound and be mingled with uniform temperature, pour into the alloy wharve behind the composition, make the thick alloy pig of 20-30mm.After treating the alloy pig cooling, be broken into the 0.4-1.0mm granularity, dispatch from the factory after the check of bag shape.
Cast inoculant block as need, then the forging type by aforesaid liquid pours in the casting mold, makes specification, inoculant block that weight is the same.
Advantage of the present invention is: technology is simple, easy to operate, the inovulant composition accurately, evenly, produce This is low.
Claims (1)
1, the technology of the hot stove in a kind of ore deposit, intermediate frequency (power frequency) electric furnace duplex smelting furnace production composite inoculant (piece) is characterized in that:
(1) the composition scope of nucleating agent requirement is (%)
Nucleating agent is based on silicon, compound composite alloy with one or more multielements such as Ba, Re, Sr, Zr, Mg, Cr, Bi, Sb, wherein: Si:55-72, Ca:0.5-3.5, Ba:1.0-10.0, Ra:0.5-6.0, Bi:1.0-1.5;
(2) technical process is as follows:
In thermal mineral furnace, smelt, contain the alloy liquid of the higher functional element of one or more content based on silicon.According to other functional element proportion requirement, take tundish to dash to convert or intermediate frequency (power frequency) stove is molten converts, after skimming, carry out nitrogen and stir, remove oxide compound and be mingled with uniform temperature, pour into the alloy wharve behind the composition, treat alloy pig cooling after, be crushed to the granularity of requirement or cast inoculant block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011122919A CN100371475C (en) | 2001-04-05 | 2001-04-05 | Process for producing composite inoculant (block) by double smelting furnace of ore-smelting furnace and medium frequency (industry frequency) electric furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011122919A CN100371475C (en) | 2001-04-05 | 2001-04-05 | Process for producing composite inoculant (block) by double smelting furnace of ore-smelting furnace and medium frequency (industry frequency) electric furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1377981A true CN1377981A (en) | 2002-11-06 |
| CN100371475C CN100371475C (en) | 2008-02-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011122919A Expired - Fee Related CN100371475C (en) | 2001-04-05 | 2001-04-05 | Process for producing composite inoculant (block) by double smelting furnace of ore-smelting furnace and medium frequency (industry frequency) electric furnace |
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| CN (1) | CN100371475C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101643813B (en) * | 2008-08-07 | 2011-04-13 | 遵义金业机械铸造有限公司 | Method for producing high-strength automotive brake hub and casting thereof |
| CN105886883A (en) * | 2016-05-31 | 2016-08-24 | 含山县兴达球墨铸铁厂 | Efficient inoculant, preparation method thereof and application of efficient inoculant in nodular cast iron |
| CN114250405A (en) * | 2021-12-13 | 2022-03-29 | 广西大学 | Preparation method of gray cast iron inoculant |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU712452A1 (en) * | 1978-05-10 | 1980-01-30 | Центральный Ордена Трудового Красного Знамени Научно-Исследовательский Институт Черной Металлургии Имени И.П.Бардина | Modifier |
| SU697591A1 (en) * | 1978-06-28 | 1979-11-15 | Институт Проблем Литья Ан Украинской Сср | Cast iron modifier |
| CN1012905B (en) * | 1988-07-14 | 1991-06-19 | 新疆机械研究所 | Preparation method of ferrosilicon bismuth instant inoculant |
| CN1026420C (en) * | 1992-04-06 | 1994-11-02 | 德州机床厂 | Cast iron composite inoculant |
-
2001
- 2001-04-05 CN CNB011122919A patent/CN100371475C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101643813B (en) * | 2008-08-07 | 2011-04-13 | 遵义金业机械铸造有限公司 | Method for producing high-strength automotive brake hub and casting thereof |
| CN105886883A (en) * | 2016-05-31 | 2016-08-24 | 含山县兴达球墨铸铁厂 | Efficient inoculant, preparation method thereof and application of efficient inoculant in nodular cast iron |
| CN114250405A (en) * | 2021-12-13 | 2022-03-29 | 广西大学 | Preparation method of gray cast iron inoculant |
| CN114250405B (en) * | 2021-12-13 | 2022-09-13 | 广西大学 | Preparation method of gray cast iron inoculant |
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| Publication number | Publication date |
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| CN100371475C (en) | 2008-02-27 |
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