CN108838346A - A kind of spheroidal graphite cast-iron iron bath coverture - Google Patents
A kind of spheroidal graphite cast-iron iron bath coverture Download PDFInfo
- Publication number
- CN108838346A CN108838346A CN201810845249.0A CN201810845249A CN108838346A CN 108838346 A CN108838346 A CN 108838346A CN 201810845249 A CN201810845249 A CN 201810845249A CN 108838346 A CN108838346 A CN 108838346A
- Authority
- CN
- China
- Prior art keywords
- parts
- iron
- spheroidal graphite
- coverture
- graphite cast
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D1/00—Treatment of fused masses in the ladle or the supply runners before casting
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C1/00—Refining of pig-iron; Cast iron
- C21C1/10—Making spheroidal graphite cast-iron
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/08—Making cast-iron alloys
Abstract
The invention discloses a kind of spheroidal graphite cast-iron iron to bathe coverture comprising contains following weight percents component：15-20 parts of lime stone, 38-45 parts of silica, 3-8 parts of aluminium oxide, 10-15 parts of carbon dust, 6-15 parts of bauxite, 4-12 parts of magnesia, 1-6 parts of attapulgite, 5-10 parts of calcium chloride, 2-5 parts of sodium oxide molybdena, 4-10 parts of potassium fluoride, 5-19 parts of gas ash, 20-28 parts of sawdust, 3-6 parts of methylcellulose and 5-9 parts of polyvinyl alcohol.Spheroidal graphite cast-iron iron bath coverture of the present invention can melt to form melting layer in a relatively short period of time, as the range of melting layer expands, calcium oxide in slag increases, so that the fusing point of molten steel covering agent increases, melting layer is prevented to continue to expand, it can reach the purpose for successively weakening heat transmitting, realize the heat preservation to molten steel in ladle.
Description
Technical field
The present invention relates to a kind of spheroidal graphite cast-iron iron to bathe coverture.
Background technique
Spheroidal graphite cast-iron is a kind of grey cast-iron with excellent mechanical properties.Generally before casting, it is added in iron liquid
A small amount of nodulizer and inovulant, form globular graphite after making molten steel solidification.The intensity and toughness of such cast iron are higher than other cast irons,
Cast steel and malleable cast iron can be replaced to be widely applied in machine building industry sometimes.
It spheroidal graphite cast-iron nodularization and breeds the stage, in order to prevent decaying spheroidisation, in addition to keeping enough nodularization constituent contents
Simultaneously will iron liquid skim back upper place addition coverture, while preventing iron liquid oxidation reduce element escape.
Iron bath coverture is also in metallurgy industry using a kind of more metallurgic auxiliary materials, and when use is added in ladle molten steel surface,
It is a kind of coverture with adiabatic heat-insulation for its main performance.
Summary of the invention
The object of the invention is that providing a kind of isolation air reduction element escape to solve the above-mentioned problems, simultaneously
The spheroidal graphite cast-iron of adiabatic heat-insulation bathes coverture with iron.
To achieve the goals above, the present invention is achieved by the following technical solutions：A kind of bath of spheroidal graphite cast-iron iron is covered
Lid agent comprising contain following weight percents component：15-20 parts of lime stone, 38-45 parts of silica, 3-8 parts of aluminium oxide,
10-15 parts of carbon dust, 6-15 parts of bauxite, 4-12 parts of magnesia, 1-6 parts of attapulgite, 5-10 parts of calcium chloride, 2-5 parts of sodium oxide molybdena, fluorine
Potassium 4-10 parts of change, 5-19 parts of gas ash, 20-28 parts of sawdust, 3-6 parts of methylcellulose and 5-9 parts of polyvinyl alcohol.
Further, a kind of spheroidal graphite cast-iron bathes coverture with iron comprising contains following weight percents component：Lime stone
18-19 parts, 40-43 parts of silica, 4-6 parts of aluminium oxide, 12-14 parts of carbon dust, 8-12 parts of bauxite, 5-10 parts of magnesia, bumps
2-4 parts of stick soil, 6-8 parts of calcium chloride, 2-5 parts of sodium oxide molybdena, 6-8 parts of potassium fluoride, 8-15 parts of gas ash, 22-26 parts of sawdust, methyl are fine
Tie up 4-6 parts of element and 6-8 parts of polyvinyl alcohol.
Further, a kind of spheroidal graphite cast-iron bathes coverture with iron comprising contains following weight percents component：Lime stone
18 parts, 2 parts of silica 1,5 parts of aluminium oxide, 13 parts of carbon dust, 10 parts of bauxite, 8 parts of magnesia, 3 parts of attapulgite, calcium chloride 7
Part, 4 parts of sodium oxide molybdena, 7 parts of potassium fluoride, 12 parts of gas ash, 24 parts of sawdust, 5 parts of methylcellulose and 7 parts of polyvinyl alcohol.
In summary the invention has the advantages that：Spheroidal graphite cast-iron iron bath coverture of the present invention can be shorter
Melt in time and form melting layer, as the range of melting layer expands, the calcium oxide in slag increases, so that molten steel covers
The fusing point of agent increases, and prevents melting layer to continue to expand, can reach the purpose for successively weakening heat transmitting, realize to steel in ladle
The heat preservation of water.
Specific embodiment
Specific embodiment 1：A kind of spheroidal graphite cast-iron iron bath coverture comprising contain following weight percents component：Stone
15 parts of lime stone, 38 parts of silica, 3 parts of aluminium oxide, 10 parts of carbon dust, 6 parts of bauxite, 4 parts of magnesia, 1 part of attapulgite, calcium chloride
5 parts, 2 parts of sodium oxide molybdena, 4 parts of potassium fluoride, 5 parts of gas ash, 20 parts of sawdust, 3 parts of methylcellulose and 5 parts of polyvinyl alcohol.Specifically
Embodiment 2：A kind of spheroidal graphite cast-iron iron bath coverture comprising contain following weight percents component：18 parts of lime stone, dioxy
12 parts of SiClx, 5 parts of aluminium oxide, 13 parts of carbon dust, 10 parts of bauxite, 8 parts of magnesia, 3 parts of attapulgite, 7 parts of calcium chloride, sodium oxide molybdena 4
Part, 7 parts of potassium fluoride, 12 parts of gas ash, 24 parts of sawdust, 5 parts of methylcellulose and 7 parts of polyvinyl alcohol.
Specific embodiment 3：A kind of spheroidal graphite cast-iron iron bath coverture comprising contain following weight percents component：Stone
20 parts of lime stone, 45 parts of silica, 8 parts of aluminium oxide, 15 parts of carbon dust, 15 parts of bauxite, 12 parts of magnesia, 6 parts of attapulgite, chlorination
10 parts of calcium, 5 parts of sodium oxide molybdena, 10 parts of potassium fluoride, 19 parts of gas ash, 28 parts of sawdust, 6 parts of methylcellulose and 9 parts of polyvinyl alcohol.
Embodiment provided above is better embodiment of the invention, only is used to facilitate to illustrate the present invention, not to this hair
It is bright to make any form of restriction, any those of ordinary skill in the art, if not departing from the proposed skill of the present invention
In the range of art feature, using the equivalent embodiment for locally changing or modifying made by disclosed technology contents, and
Without departing from technical feature content of the invention, in the range of still falling within the technology of the present invention feature.
Claims (3)
1. a kind of spheroidal graphite cast-iron bathes coverture with iron, it is characterised in that：Including containing following weight percents component：Lime stone
15-20 parts, 38-45 parts of silica, 3-8 parts of aluminium oxide, 10-15 parts of carbon dust, 6-15 parts of bauxite, 4-12 parts of magnesia, bumps
1-6 parts of stick soil, 5-10 parts of calcium chloride, 2-5 parts of sodium oxide molybdena, 4-10 parts of potassium fluoride, 5-19 parts of gas ash, 20-28 parts of sawdust, methyl
3-6 parts of cellulose and 5-9 parts of polyvinyl alcohol.
2. a kind of spheroidal graphite cast-iron according to claim 1 bathes coverture with iron, it is characterised in that：Including containing following weight
Percent composition：18-19 parts of lime stone, 40-43 parts of silica, 4-6 parts of aluminium oxide, 12-14 parts of carbon dust, bauxite 8-12
Part, 5-10 parts of magnesia, 2-4 parts of attapulgite, 6-8 parts of calcium chloride, 2-5 parts of sodium oxide molybdena, 6-8 parts of potassium fluoride, 8-15 parts of gas ash,
22-26 parts of sawdust, 4-6 parts of methylcellulose and 6-8 parts of polyvinyl alcohol.
3. a kind of spheroidal graphite cast-iron according to claim 1 bathes coverture with iron, it is characterised in that：Including containing following weight
Percent composition：18 parts of lime stone, 2 parts of silica 1,5 parts of aluminium oxide, 13 parts of carbon dust, 10 parts of bauxite, 8 parts of magnesia, bumps
3 parts of stick soil, 7 parts of calcium chloride, 4 parts of sodium oxide molybdena, 7 parts of potassium fluoride, 12 parts of gas ash, 24 parts of sawdust, 5 parts of methylcellulose and poly-
7 parts of vinyl alcohol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810845249.0A CN108838346A (en) | 2018-07-27 | 2018-07-27 | A kind of spheroidal graphite cast-iron iron bath coverture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810845249.0A CN108838346A (en) | 2018-07-27 | 2018-07-27 | A kind of spheroidal graphite cast-iron iron bath coverture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108838346A true CN108838346A (en) | 2018-11-20 |
Family
ID=64195813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810845249.0A Withdrawn CN108838346A (en) | 2018-07-27 | 2018-07-27 | A kind of spheroidal graphite cast-iron iron bath coverture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108838346A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109468431A (en) * | 2018-11-27 | 2019-03-15 | 沈劲松 | Material is adjusted for improving surface of metal product intensity metallurgical industry overlay film |
| CN114045374A (en) * | 2021-11-19 | 2022-02-15 | 西峡龙成冶金材料有限公司 | Special covering slag for nodular cast iron and preparation method and application thereof |
-
2018
- 2018-07-27 CN CN201810845249.0A patent/CN108838346A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109468431A (en) * | 2018-11-27 | 2019-03-15 | 沈劲松 | Material is adjusted for improving surface of metal product intensity metallurgical industry overlay film |
| CN114045374A (en) * | 2021-11-19 | 2022-02-15 | 西峡龙成冶金材料有限公司 | Special covering slag for nodular cast iron and preparation method and application thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181120 |