CN101987350A - Gray cast-iron sintered inoculant - Google Patents
Gray cast-iron sintered inoculant Download PDFInfo
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- CN101987350A CN101987350A CN2009100130201A CN200910013020A CN101987350A CN 101987350 A CN101987350 A CN 101987350A CN 2009100130201 A CN2009100130201 A CN 2009100130201A CN 200910013020 A CN200910013020 A CN 200910013020A CN 101987350 A CN101987350 A CN 101987350A
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Abstract
The invention discloses a gray cast-iron sintered inoculant comprising the following components in percentage by weight: 35-45 percent of rare earth barium-calcium alloy, 33-55 percent of silicon-calcium alloy and 5-18 percent of ferromanganese, wherein the ultramicro granularity of each component has the molecular level of 100nm. The components are crushed, graded, mixed, granulated, dried and fired to obtain an ultramicro granule sintered cluster with the weight of 0.05-0.2 kg; and the sintered cluster is added into a ladle so as to be subjected to fore-hearth treatment, wherein the weight of the sintered cluster is 0.1-0.3 percent of that of iron liquor required to be treated. The sintered inoculant provided by the invention can be effectively prevented from being wrapped by slag to enter the iron liquor to be treated, has the characteristics of safety, high efficiency, convenient use and the like and is beneficial to improving the imprenation capability of molten iron and strengthening the inoculation effect.
Description
Technical field
The present invention relates to a kind of casting pig sintering inovulant, belong to the preceding inoculation technical field of iron liquid casting specifically.
Background technology
At present, inoculation process is to improve one of most economical and valid approach of casting pig performance, and for many years, founder author has carried out great deal of experimental work to the composition and the inoculation method of inovulant.Up to now, according to different molten steel qualities and foundry goods type, casting quality requirement, dissimilar inovulant of nearly over thousands of kind and corresponding inoculation treating method have been developed both at home and abroad.Domestic researcher has carried out systematic research to the rare earth composite inoculant, and is used to produce high-carbon equivalent high-strength gray cast iron, has obtained some progress.Yet, because inovulant easily by slag parcel, the inovulant particle is thick in addition, enters in the pending iron liquid reasons such as potentia concipiendi difference, cause that innoculant adding quantity is corresponding to be increased, increased production cost.
In the prior art, as application number is disclosed a kind of gray cast iron inoculation process in the 200710157622.5 patent of invention specifications, this technology is to be 3～8mm with breeding rare earth Ba-Ca alloy granularity, calcium-silicon granularity≤5mm, the composite inoculant of ferromanganese granularity≤15mm, by 0.3～0.5% of required processing iron liquid weight, inovulant is contained in one with in a plurality of ventilative cans, during processing can is directly rendered in the ladle.Facts have proved, adopt above-mentioned gray cast iron inoculation process, dangerous, particularly when inovulant or can moisture amount are higher, throw in the casting pig inovulant and be easy to generate " quick-fried stove " phenomenon, there is production safety accident potential.
Summary of the invention
The present invention has overcome the deficiency of above-mentioned prior art, and its purpose is to provide a kind of casting pig sintering inovulant, to improve the potentia concipiendi of molten iron, strengthens pregnant effect.
Above-mentioned purpose of the present invention is achieved by the following technical programs.
A kind of casting pig sintering inovulant, each weight percentages of components of this inovulant is: rare earth Ba-Ca alloy 35～45%; Calcium-silicon 33～55%; Ferromanganese 5～18%.Each component ultramicro powder degree is molecular level～100nm.Above-mentioned each component is made 0.05～0.2 kilogram weight ultramicro powder sintering group through pulverizing, classification, mixing, granulation, drying, sintering, and the sintering inovulant is joined in the ladle by 0.1～0.3% of required processing iron liquid weight, carries out the stokehold and handles.
Sintering inovulant provided by the present invention can prevent effectively that inovulant from can't be entered in the pending iron liquid by the slag parcel, has characteristics such as safe, efficient, easy to use, helps to improve the potentia concipiendi of molten iron, strengthens pregnant effect.Adopt sintering process to produce inovulant, can eliminate the moisture in the inovulant fully, avoid throwing in the casting pig inovulant and produce " quick-fried stove " phenomenon.
The specific embodiment
Embodiment one: a kind of casting pig sintering inovulant, and each weight percentages of components of this inovulant is: rare earth Ba-Ca alloy 45%; Calcium-silicon 45%; Ferromanganese 1%; Each component ultramicro powder degree is 100nm.Above-mentioned each component is made 0.05 kilogram weight ultramicro powder sintering group through pulverizing, classification, mixing, granulation, drying, sintering, and the sintering inovulant is joined in the ladle by 0.3% of required processing iron liquid weight, carries out the stokehold and handles.Sintering inovulant provided by the present invention can prevent effectively that inovulant from can't be entered in the pending iron liquid by the slag parcel, has characteristics such as safe, efficient, easy to use, helps to improve the potentia concipiendi of molten iron, strengthens pregnant effect.
Embodiment two: a kind of casting pig sintering inovulant, and each weight percentages of components of this inovulant is: rare earth Ba-Ca alloy 35%; Calcium-silicon 55%; Ferromanganese 10%.Each component ultramicro powder degree is molecular level～100nm.Above-mentioned each component is made 0.05～0.2 kilogram weight ultramicro powder sintering through pulverizing, classification, mixing, granulation, drying, sintering, and the sintering inovulant is joined in the ladle by 0.1% of required processing iron liquid weight, carries out the stokehold and handles.
Claims (2)
1. casting pig sintering inovulant, each weight percentages of components of this inovulant is: rare earth Ba-Ca alloy 35～45%; Calcium-silicon 33～55%; Ferromanganese 5～18%.
2. inovulant according to claim 1 is characterized in that each component ultramicro powder degree of said inovulant is molecular level～100nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100130201A CN101987350A (en) | 2009-08-07 | 2009-08-07 | Gray cast-iron sintered inoculant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100130201A CN101987350A (en) | 2009-08-07 | 2009-08-07 | Gray cast-iron sintered inoculant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101987350A true CN101987350A (en) | 2011-03-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100130201A Pending CN101987350A (en) | 2009-08-07 | 2009-08-07 | Gray cast-iron sintered inoculant |
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| CN (1) | CN101987350A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108531680A (en) * | 2017-03-01 | 2018-09-14 | 石川硅石工业株式会社 | The manufacturing method of controlling agent and controlling agent |
-
2009
- 2009-08-07 CN CN2009100130201A patent/CN101987350A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108531680A (en) * | 2017-03-01 | 2018-09-14 | 石川硅石工业株式会社 | The manufacturing method of controlling agent and controlling agent |
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| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110323 |