CN107698267A - A kind of riser heating and insulating agent and its preparation technology - Google Patents
A kind of riser heating and insulating agent and its preparation technology Download PDFInfo
- Publication number
- CN107698267A CN107698267A CN201710972403.6A CN201710972403A CN107698267A CN 107698267 A CN107698267 A CN 107698267A CN 201710972403 A CN201710972403 A CN 201710972403A CN 107698267 A CN107698267 A CN 107698267A
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- parts
- mixture
- heat preserving
- preparation technology
- vermiculite
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Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/66—Monolithic refractories or refractory mortars, including those whether or not containing clay
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/04—Influencing the temperature of the metal, e.g. by heating or cooling the mould
- B22D27/06—Heating the top discard of ingots
Abstract
The invention discloses a kind of riser heating and insulating agent and its preparation technology, heat preserving agent component includes 20 50 parts of low-carbon-content graphite, 10 30 parts of magnesium aluminate spinel, 4 12 parts of aluminium nitride, 8 18 parts of brown iron oxide, 10 20 parts of bentonite, 4 12 parts of diatomite, 5 10 parts of vermiculite, 39 parts of carbonic acid zirconium powder in parts by weight, preparation technology of the present invention is simple, obtained heat preserving agent high insulating effect, it is possible to increase casting quality.
Description
Technical field
The present invention relates to heat preserving agent preparing technical field, specially a kind of riser heating and insulating agent and its preparation technology.
Background technology
In foundry production, the process of setting of liquid metal is the important stage that casting is formed, many casting flaws
As stomata, shrinkage cavity and porosity etc. be in this stage caused by；The weight and size of casting it is bigger, it is necessary to casting liquid it is more, casting
Make that technique is more complicated, the setting time of casting is longer, and defect is more, and control is more difficult.
Riser head heat-preserving is one of effective ways for controlling steel-casting quality, and the wherein selection of riser heating and insulating agent is particularly heavy
Will, in order that the casting quality produced is qualified, must be requested that the heating of covering flux and high insulating effect, it is ensured that at rising head
Molten steel final set, and there is heat insulation effect is poor, spreadability for traditional coverture such as plant ash, flyash, carbonization rice husk
The shortcomings that difference, the poor malleability that increases, carburetting and pollution environment；Increase for the casting made using traditional heating and casting low-carbon steel casting
Carbon, so as to pollute casting.
The content of the invention
It is an object of the invention to provide a kind of riser heating and insulating agent and its preparation technology, to solve above-mentioned background technology
The problem of middle proposition.
To achieve the above object, the present invention provides following technical scheme：A kind of riser heating and insulating agent, heat preserving agent component are pressed
Parts by weight include low-carbon-content graphite 20-50 parts, magnesium aluminate spinel 10-30 parts, aluminium nitride 4-12 parts, brown iron oxide 8-18 parts, swollen
Moisten native 10-20 parts, diatomite 4-12 parts, vermiculite 5-10 parts, carbonic acid zirconium powder 3-9 parts.
Preferably, the preferable composition proportion of heat preserving agent component includes 35 parts of low-carbon-content graphite, 20 parts of magnesium aluminate spinel, aluminium nitride
8 parts, 13 parts of brown iron oxide, 15 parts of bentonite, 8 parts of diatomite, 8 parts of vermiculite, 6 parts of carbonic acid zirconium powder.
Preferably, its preparation technology comprises the following steps：
A, add in grinder and grind after mixing magnesium aluminate spinel, aluminium nitride, vermiculite, obtain mixture A；
B, brown iron oxide, bentonite, diatomite, carbonic acid zirconium powder are added in mixture A, adds in pulverizer and crushes after mixing,
Pulverizer rotating speed is 500 revs/min, time 20min, obtains mixture B；
C, mixture A is added in mixture B, low-carbon-content graphite is added, after being sufficiently mixed, that is, obtains heat preserving agent.
Compared with prior art, the beneficial effects of the invention are as follows：Preparation technology of the present invention is simple, obtained heat preserving agent insulation
Effect is good, it is possible to increase casting quality；Bentonite, diatomite, the vermiculite added in the present invention, it is possible to increase the resistance to height of heat preserving agent
Warm nature energy；The present invention can form the slag liquid of one layer of thermal conductivity extreme difference, proper viscosity and low melting point with molten steel surface contact position, and
It can decline with molten steel face and decline, not form grit shell, there is good heat preservation and insulation.
Embodiment
The technical scheme in the embodiment of the present invention is clearly and completely described below, it is clear that described embodiment
Only part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, the common skill in this area
The every other embodiment that art personnel are obtained under the premise of creative work is not made, belong to the model that the present invention protects
Enclose.
The present invention provides following technical scheme：A kind of riser heating and insulating agent, heat preserving agent component include low in parts by weight
Carbon graphite 20-50 parts, magnesium aluminate spinel 10-30 parts, aluminium nitride 4-12 parts, brown iron oxide 8-18 parts, bentonite 10-20 parts, silicon
Diatomaceous earth 4-12 parts, vermiculite 5-10 parts, carbonic acid zirconium powder 3-9 parts.
Embodiment one：
Heat preserving agent component includes 20 parts of low-carbon-content graphite, 10 parts of magnesium aluminate spinel, 4 parts of aluminium nitride, brown iron oxide 8 in parts by weight
Part, 10 parts of bentonite, 4 parts of diatomite, 5 parts of vermiculite, 3 parts of carbonic acid zirconium powder.
The preparation technology of the present embodiment comprises the following steps：
A, add in grinder and grind after mixing magnesium aluminate spinel, aluminium nitride, vermiculite, obtain mixture A；
B, brown iron oxide, bentonite, diatomite, carbonic acid zirconium powder are added in mixture A, adds in pulverizer and crushes after mixing,
Pulverizer rotating speed is 500 revs/min, time 20min, obtains mixture B；
C, mixture A is added in mixture B, low-carbon-content graphite is added, after being sufficiently mixed, that is, obtains heat preserving agent.
Embodiment two：
Heat preserving agent component includes 50 parts of low-carbon-content graphite, 30 parts of magnesium aluminate spinel, 12 parts of aluminium nitride, brown iron oxide 18 in parts by weight
Part, 20 parts of bentonite, 12 parts of diatomite, 10 parts of vermiculite, 9 parts of carbonic acid zirconium powder.
The preparation technology of the present embodiment comprises the following steps：
A, add in grinder and grind after mixing magnesium aluminate spinel, aluminium nitride, vermiculite, obtain mixture A；
B, brown iron oxide, bentonite, diatomite, carbonic acid zirconium powder are added in mixture A, adds in pulverizer and crushes after mixing,
Pulverizer rotating speed is 500 revs/min, time 20min, obtains mixture B；
C, mixture A is added in mixture B, low-carbon-content graphite is added, after being sufficiently mixed, that is, obtains heat preserving agent.
Embodiment three：
Heat preserving agent component includes 25 parts of low-carbon-content graphite, 15 parts of magnesium aluminate spinel, 6 parts of aluminium nitride, brown iron oxide 9 in parts by weight
Part, 12 parts of bentonite, 6 parts of diatomite, 6 parts of vermiculite, 4 parts of carbonic acid zirconium powder.
The preparation technology of the present embodiment comprises the following steps：
A, add in grinder and grind after mixing magnesium aluminate spinel, aluminium nitride, vermiculite, obtain mixture A；
B, brown iron oxide, bentonite, diatomite, carbonic acid zirconium powder are added in mixture A, adds in pulverizer and crushes after mixing,
Pulverizer rotating speed is 500 revs/min, time 20min, obtains mixture B；
C, mixture A is added in mixture B, low-carbon-content graphite is added, after being sufficiently mixed, that is, obtains heat preserving agent.
Example IV：
Heat preserving agent component includes 45 parts of low-carbon-content graphite, 25 parts of magnesium aluminate spinel, 10 parts of aluminium nitride, brown iron oxide 16 in parts by weight
Part, 18 parts of bentonite, 10 parts of diatomite, 9 parts of vermiculite, 8 parts of carbonic acid zirconium powder.
The preparation technology of the present embodiment comprises the following steps：
A, add in grinder and grind after mixing magnesium aluminate spinel, aluminium nitride, vermiculite, obtain mixture A；
B, brown iron oxide, bentonite, diatomite, carbonic acid zirconium powder are added in mixture A, adds in pulverizer and crushes after mixing,
Pulverizer rotating speed is 500 revs/min, time 20min, obtains mixture B；
C, mixture A is added in mixture B, low-carbon-content graphite is added, after being sufficiently mixed, that is, obtains heat preserving agent.
Embodiment five：
Heat preserving agent component includes 35 parts of low-carbon-content graphite, 20 parts of magnesium aluminate spinel, 8 parts of aluminium nitride, brown iron oxide 13 in parts by weight
Part, 15 parts of bentonite, 8 parts of diatomite, 8 parts of vermiculite, 6 parts of carbonic acid zirconium powder.
The preparation technology of the present embodiment comprises the following steps：
A, add in grinder and grind after mixing magnesium aluminate spinel, aluminium nitride, vermiculite, obtain mixture A；
B, brown iron oxide, bentonite, diatomite, carbonic acid zirconium powder are added in mixture A, adds in pulverizer and crushes after mixing,
Pulverizer rotating speed is 500 revs/min, time 20min, obtains mixture B；
C, mixture A is added in mixture B, low-carbon-content graphite is added, after being sufficiently mixed, that is, obtains heat preserving agent.
Preparation technology of the present invention is simple, obtained heat preserving agent high insulating effect, it is possible to increase casting quality；Add in the present invention
Bentonite, diatomite, the vermiculite added, it is possible to increase the resistance to elevated temperatures of heat preserving agent；The present invention can be with molten steel surface contact position
The slag liquid of one layer of thermal conductivity extreme difference, proper viscosity and low melting point is formed, and can decline with molten steel face and decline, does not form grit
Shell, there is good heat preservation and insulation.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (3)
- A kind of 1. riser heating and insulating agent, it is characterised in that：Heat preserving agent component in parts by weight include low-carbon-content graphite 20-50 parts, Magnesium aluminate spinel 10-30 parts, aluminium nitride 4-12 parts, brown iron oxide 8-18 parts, bentonite 10-20 parts, diatomite 4-12 parts, vermiculite 5-10 parts, carbonic acid zirconium powder 3-9 parts.
- A kind of 2. riser heating and insulating agent according to claim 1, it is characterised in that：The preferable composition of heat preserving agent component is matched somebody with somebody Than including 35 parts of low-carbon-content graphite, 20 parts of magnesium aluminate spinel, 8 parts of aluminium nitride, 13 parts of brown iron oxide, 15 parts of bentonite, diatomite 8 Part, 8 parts of vermiculite, 6 parts of carbonic acid zirconium powder.
- 3. realize a kind of preparation technology of riser heating and insulating agent described in claim 1, it is characterised in that：Its preparation technology bag Include following steps：A, add in grinder and grind after mixing magnesium aluminate spinel, aluminium nitride, vermiculite, obtain mixture A；B, brown iron oxide, bentonite, diatomite, carbonic acid zirconium powder are added in mixture A, adds in pulverizer and crushes after mixing, Pulverizer rotating speed is 500 revs/min, time 20min, obtains mixture B；C, mixture A is added in mixture B, low-carbon-content graphite is added, after being sufficiently mixed, that is, obtains heat preserving agent.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710972403.6A CN107698267A (en) | 2017-10-18 | 2017-10-18 | A kind of riser heating and insulating agent and its preparation technology |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710972403.6A CN107698267A (en) | 2017-10-18 | 2017-10-18 | A kind of riser heating and insulating agent and its preparation technology |
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| CN107698267A true CN107698267A (en) | 2018-02-16 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108453246A (en) * | 2018-05-15 | 2018-08-28 | 姜香 | A kind of cast steel insulated feeder coverture and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101798233A (en) * | 2010-02-10 | 2010-08-11 | 河南科技大学 | Riser heating and insulating agent |
| CN104959553A (en) * | 2015-07-14 | 2015-10-07 | 万燕杰 | Heat preservation agent for tundish |
| CN105033197A (en) * | 2015-07-14 | 2015-11-11 | 万燕杰 | Covering agent for iron casting |
| CN105312523A (en) * | 2014-06-24 | 2016-02-10 | 上海梅山钢铁股份有限公司 | Tundish covering agent for non-oriented silicon steel |
-
2017
- 2017-10-18 CN CN201710972403.6A patent/CN107698267A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101798233A (en) * | 2010-02-10 | 2010-08-11 | 河南科技大学 | Riser heating and insulating agent |
| CN105312523A (en) * | 2014-06-24 | 2016-02-10 | 上海梅山钢铁股份有限公司 | Tundish covering agent for non-oriented silicon steel |
| CN104959553A (en) * | 2015-07-14 | 2015-10-07 | 万燕杰 | Heat preservation agent for tundish |
| CN105033197A (en) * | 2015-07-14 | 2015-11-11 | 万燕杰 | Covering agent for iron casting |
Non-Patent Citations (1)
| Title |
|---|
| 侯华: "《液态成型工艺及CAD》", 30 November 2012, 国防工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108453246A (en) * | 2018-05-15 | 2018-08-28 | 姜香 | A kind of cast steel insulated feeder coverture and preparation method thereof |
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Application publication date: 20180216 |