CN1017030B - Solid coating for steel ingot mold and its production method - Google Patents
Solid coating for steel ingot mold and its production methodInfo
- Publication number
- CN1017030B CN1017030B CN 90104962 CN90104962A CN1017030B CN 1017030 B CN1017030 B CN 1017030B CN 90104962 CN90104962 CN 90104962 CN 90104962 A CN90104962 A CN 90104962A CN 1017030 B CN1017030 B CN 1017030B
- Authority
- CN
- China
- Prior art keywords
- gmt
- content
- steel
- present
- steel ingot
- 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.)
- Expired
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- Mold Materials And Core Materials (AREA)
Abstract
The present invention relates to novel solid steel ingot mould paint which comprises the main components of micro powder graphite with high dispersed performance, solid water glass, cellulose, aluminum silicate, etc. The present invention is used for protecting steel moulds during casting moulds and making steel in metallurgy steel making industry. Meanwhile, the paint decreases steel ingot surface defects caused by the irregular inner surface of moulds and poor casting conditions, and has the advantages of no operation environment pollution and notable economic technical devices. The present invention is ideal steel ingot mould paint in smelting industry at present.
Description
The invention belongs to metallurgical steel industry ingot mould special solid powder.
At present, all use liquid coating at metallurgical steel industry mould coating material both at home and abroad,, reduced the harm of pernicious gas human body though operating environment is improved significantly than brushing tarvia, the technological process of operation is simplified to some extent, and the quality of surface of steel ingot increases.But because of contain the moisture of 30-80% in coating, bring very big difficulty for the remote transportation of product, especially transportation in winter and storage are more inconvenient.Liquid coating is emitted a certain amount of harmful gas in use in addition, pollutes working environment.
The objective of the invention is to use the defective that exists in transportation, the storage, designed a kind of novel preparation mould coating material solid powder at stating product.This invention improved the physical and chemical index and the result of use of mould coating material product, the environmental requirement that has especially adapted to the north of china in winter transportation and stored, and the pollution of no operatton environment has guaranteed the physical and mental health of operating worker.
Formula for a product of the present invention and technological process:
One, the preparation mould coating material is filled a prescription with solid powder:
1, main component: (percentage)
Solid water glass 5-12%
Bentonite (sodium base and calcium base) 10-15%
Sodium carboxymethylcellulose 2-8%
Graphite 50-65%
Sillimanite 3-10%
2, granularity:
Graphite 200 orders-1000 order
Solid water glass 300 orders-500 order
Bentonite 300 orders-500 order
Sodium carboxymethylcellulose 300 orders-500 order
Calgon
Sodium phosphate trimer 300 orders-500 order
Sodium methylene bis-naphthalene sulfonate
Sillimanite 300 orders-500 order
3, phosphorus content (C)
Graphite 89-96%
4, modulus:
Solid water glass 2.8-3.6
5, preparation mould coating material solid powder physical and chemical index:
Title fineness C% SiO
2% Al
2O
3% Fe
2O
3% MgO% moisture % density g/cm
3
GMT-X 5-25μ 50-60 20-30 5-10 1-2 2-4 ≤4 0.6-0.8
GMT-S 10-25μ 50-57 25-35 7-14 1-2 2-4 ≤4 0.7-1.0
6, the implication preparation mould coating material GMT-X(S of solid powder):
The G-solid, powdery
The M-die casting
T-coating
X-makes a bet
The last notes of S-
Two, the preparation ingot mould is coated with and uses the solid powder technological process of production:
1, the technological process of production:
As shown in the figure: its technological process of production is: in the process oven dry respectively of suspending agent, binding agent, carrier and diffusant, detection; Broken and detect after prepare burden, lump together stirrings, grindings again with through pulverizing graphite after detecting, pack after detecting.
2, processing parameter: (parameter that in the technological process of production, adopts)
(1) reducing agent (graphite) adopts high pressure draught to pulverize, and flow is 6-12m
3/ minute, pressure is 5-9kg/cm
2
(2) oven dry of material is adopted the far-infrared rays drying case, its bake out temperature:
Suspending agent: 123 ℃-150 ℃;
Binding agent: 120 ℃-200 ℃;
Diffusant: 85 ℃-100 ℃.
(3) batch mixing adopts vertical twin-shaft mixer.
Mixing time is 45-60 minute.
The present invention removes to have the Ingot Surface Quality of improvement, reduces the mould consumption, improves lumber recovery and billet yield, prolongs steel ingot service life, and the no operatton environmental pollution is guaranteed to reduce production costs in addition outside staff's psychosomatic health, effect such as increase economic efficiency.As adopt solid powder to compare with liquid coating, then solid powder is by 1: 5-1: the calculation of price after 9 water distributions, the whole nation are promoted the use of total amount and are about 9.000 tons, can use product producer to obtain about ten thousand yuan of benefit 1.500-1.980.The metallurgical industry system promotes the use of in the whole nation, and its technical economic benefit can reach 2.25 hundred million yuans.
Most preferred embodiment of the present invention (optimum formula):
Solid water glass (binding agent) 8%, granularity 500 orders, modulus 3.6;
Bentonite (carrier) 10%, granularity 325 orders, (Na yl)
Sodium carboxymethylcellulose (suspending agent) 8%, granularity 300 orders, (I
8)
Calgon (diffusant) 5%, granularity 400 orders;
Graphite (reducing agent) 60%, granularity 1000 orders (containing C96%)
Sillimanite (carrier) 8%, granularity 500 orders;
Claims (3)
1, a kind of novel preparation mould coating material solid powder is characterized in that main prescription is:
Material name content % granularity (order) modulus
Solid water glass (binding agent) 5-12% 300-500 2.8-3.6
Bentonite (sodium base and calcium base) (carrier) 10-15% 300-500
Sodium carboxymethylcellulose (suspending agent) 2-8% 300-500
Graphite (reducing agent) 50-65% 200-1000
Carbon content 89-96%
Sillimanite (carrier) 3-10% 300-500
2, prepare the mould coating material solid powder according to claim 1, it is characterized in that processing parameter is:
(1) reducing agent graphite adopts high pressure draught to pulverize, and flow is 6-12m
3/ minute, pressure is 5-9kg/cm
2
(2) oven dry of material is adopted the far-infrared rays drying case, its bake out temperature:
Suspending agent: 123 ℃-150 ℃;
Binding agent: 120 ℃-200 ℃;
Diffusant: 85 ℃-140 ℃.
(3) batch mixing adopts vertical twin-shaft mixer.
Mixing time is 45-60 minute.
3, prepare according to claim 1 mould coating material with solid powder, it is characterized in that physical and chemical index is: fineness: GMT-X:5-25 μ m; GMT-S:10-25 μ m; Phosphorus content: GMT-X:50-60%; GMT-S:50-57%; Dioxide-containing silica: GMT-X:20-30%; GMT-S:25-35%, alundum (Al content: GMT-X:5-10%; GMT-S:7-14%; Ferric oxide content: GMT-X:1-2%; GMT-S:1-2%; Content of magnesia: GMT-X:2-4%; GMT-S:2-4%; Moisture: GMT-X :≤4%; GMT-S :≤4%; Density: GMT-X:0.6-0.8g/cm
3; GMT-S:0.7-1.0g/cm
3
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90104962 CN1017030B (en) | 1990-07-24 | 1990-07-24 | Solid coating for steel ingot mold and its production method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90104962 CN1017030B (en) | 1990-07-24 | 1990-07-24 | Solid coating for steel ingot mold and its production method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1049812A CN1049812A (en) | 1991-03-13 |
| CN1017030B true CN1017030B (en) | 1992-06-17 |
Family
ID=4878825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90104962 Expired CN1017030B (en) | 1990-07-24 | 1990-07-24 | Solid coating for steel ingot mold and its production method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1017030B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1048929C (en) * | 1996-05-10 | 2000-02-02 | 赵洪昌 | Water-soluble mold-release agent and its preparation method |
| CN1071161C (en) * | 1999-01-18 | 2001-09-19 | 华中理工大学 | Metal-type top heat-conductive coating |
| CN1071162C (en) * | 1999-01-18 | 2001-09-19 | 华中理工大学 | Metal type heat-insulation coating |
| EP1958717B1 (en) * | 2005-11-30 | 2019-01-09 | Kao Corporation | Component for casting production and method for producing same |
| CN102773404B (en) * | 2011-08-30 | 2014-04-23 | 北京时代锐智科技有限公司 | Anti-whiting coating for cast iron and methods for preparing and using anti-whiting coating for cast iron |
| CN107790618B (en) * | 2016-08-31 | 2019-12-27 | 有研稀土新材料股份有限公司 | Ingot mould coating and preparation method and application thereof |
-
1990
- 1990-07-24 CN CN 90104962 patent/CN1017030B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CN1049812A (en) | 1991-03-13 |
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| SE01 | Entry into force of request for substantive examination | ||
| C13 | Decision | ||
| GR02 | Examined patent application | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |