CN102240799A - Low-temperature baked aluminum-silicon-carbon argon blowing integral stopper for vacuum pouring heavy castings and forgings - Google Patents
Low-temperature baked aluminum-silicon-carbon argon blowing integral stopper for vacuum pouring heavy castings and forgings Download PDFInfo
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- CN102240799A CN102240799A CN2010101789863A CN201010178986A CN102240799A CN 102240799 A CN102240799 A CN 102240799A CN 2010101789863 A CN2010101789863 A CN 2010101789863A CN 201010178986 A CN201010178986 A CN 201010178986A CN 102240799 A CN102240799 A CN 102240799A
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Abstract
The invention discloses a low-temperature baked aluminum-silicon-carbon argon blowing integral stopper for vacuum pouring heavy castings and forgings. The stopper body (1) is integrally made of one material which comprises the components in percentages by weight: 30-60 wt% of one or more of brown corundum, white corundum or sintered corundum, 15-30 wt% of industrial silicon, 3-10 wt% of zircon mullite, 20-40 wt% of graphite and 5-20 wt% of phenolic resin. The integral stopper overcomes the shortages that traditional vacuum pouring cutoff equipment is easy to erode and the consumption of fireproof material is large, saves the cost, and reduces the accident risk; baking temperature of a stopper baker in the vacuum pouring equipment is generally lower, so that the requirements on the baker in the aspects of component selection and proportioning of the material are greatly reduced, the stopper can be used when just braked to 500 DEG C; the safety while controlling the flow is increased by presetting an iron nut (2); and argon stirring in the pouring process is realized by presetting an argon blowing channel (3) and pre-embedding a steel argon blowing nozzle in the production process.
Description
Technical field
The invention belongs to the vacuum pouring refractory material, relate generally to a kind of vacuum pouring heavy casting and forging low-temperature bake aluminium silicon-carbon Argon integral column of sagger.
Background technology
Vacuum pouring claims vacuum-casting again, is ingot mould is inserted in the vacuum chamber, and molten steel injects the molten steel application of vacuum technology that ingot mould is cast steel ingot by placing the tundish on the vacuum chamber lid.Vacuum ingot casting process only is applicable to a Room one ingot, is used for the casting large forging-grade ingot more.
Molten steel in ingot mould, utilizes following complicated special-shaped products control to water steel: nozzle brick, stopper brick, sleeve brick, brick cup by steel ladle pouring.These goods are traditional cut-off equipment, and wherein stopper brick, sleeve brick and excellent core are formed stopper jointly.Be to be contained in the fire proofed wood charge bar of controlling mouth of a river switching and molten steel flow in the ladle by the lifting displacement.
The rod core is that the straight carbon steel round steel of 30～60mm processes by diameter usually, and the upper end is connected with the transverse arm of elevating mechanism by bolt, and the lower end leans on screw thread or pin to be connected the intermediate sleeve sleeve brick with stopper brick.Sleeve brick is the hollow fire-resistant brick pipe that is enclosed within stopper core bar outside, and every joint brick pipe two ends have the yin, yang interface respectively.Sleeve brick protection metal core bar is avoided the direct effect of high-temperature metal and slag, and the rigidity of protection stopper is with the control beam.Sleeve brick is generally clay matter.
Stopper brick is to be positioned at stopper is tight cooperation bottom with nozzle brick refractory material matter brick.It is blocked the mouth of a river and guarantees not bleed-out when not pouring into a mould.Improve stopper during cast, make stopper brick and nozzle brick produce the gap, molten steel flows out from the mouth of a river.The height of control stopper, the discharge that can regulate molten steel.Stopper brick can be the non-sintered high aluminium matter brick of clay matter, non-sintered high aluminium matter and tar dipping.
Stopper must carefully be built by laying bricks or stones, and uses after the baking drying more than the 48h, causes the bleed-out accident to avoid refractory material to burst.In use, because refractory material is in the molten metal, stopper brick is easy to damage.Though stopper rod carefully separates with fire-resistant sleeve brick, long-time the stop, particularly in 350～450t ladle, under the overheated condition of molten steel, stopper rod is easy to deliquescing.In a word, make that with this assembling stopper the refractory consumption rate number is many, water the 1t steel and want a cover sleeve brick and chock plug to reach 2～2.5Kg, not only improved production cost, and increased accident risk, reduce production efficiency.
Summary of the invention
Purpose of the present invention just is to propose a kind of vacuum pouring heavy casting and forging with low-temperature bake aluminium silicon-carbon Argon integral column of sagger, makes it be applicable to vacuum pouring.
The vacuum pouring heavy casting and forging that the present invention proposes low-temperature bake aluminium silicon-carbon Argon integral column of sagger, its barred body (1) entire body is a kind of material, and the constituent of this material and content are: one or more the 30～60wt% in brown corundum, white fused alumina or the alundum; Industrial silicon 15～30wt%; Zirconium mullite 3～10wt%; Graphite 20～40wt%; Phenolic resins 5～20wt%.
Its process route is: the blank of being made by above-mentioned raw materials adds in the mould gum cover, and preset nut (2) at its excellent tail, Argon passage (3) is reserved at the stopper center, at the pre-buried steel Argon of caput mouth (4), beat reality then, isostatic compaction is adopted in sealing, briquetting pressure is 30～150Mpa, pressurize 15min.Green compact to forming are processed processing, to require size in strict conformity with drawing.Insert after the drying in the gas kiln and heat-treat, heat treatment temperature is 1000～1400 ℃, again through processing, and the brush antioxidizing paint.
The vacuum pouring heavy casting and forging that the present invention makes low-temperature bake aluminium silicon-carbon Argon integral column of sagger, can effectively improve the problem that stopper rod is easily softening, stopper brick easily weathers and the refractory consumption rate amount is big that exists in traditional cut-off equipment, increase the service life, enhance productivity, save cost, reduce accident rate.
Description of drawings
Accompanying drawing 1 is the schematic diagram of vacuum pouring heavy casting and forging of the present invention with low-temperature bake aluminium silicon-carbon Argon integral body
Among the figure, 1, barred body, 2, nut, 3, the Argon passage, 4, steel Argon mouth.
The specific embodiment
The stopper entire body adopts a kind of material, and its constituent and content are: white fused alumina and alundum 45wt%; Industrial silicon 12wt%; Zirconium mullite 7wt%; Graphite 25wt%; Phenolic resins 11wt%.
Stopper adopts isostatic compaction technology, and briquetting pressure is 120Mpa, dwell time 15min.1100 ℃ of heat treatment temperatures.
Claims (3)
1. a vacuum pouring heavy casting and forging is characterized in that with low-temperature bake aluminium silicon-carbon Argon integral column of sagger the stopper entire body adopts a kind of material, and material constituent and content are: one or more the 30～60wt% in brown corundum, white fused alumina or the alundum; Industrial silicon 15～30wt%; Zirconium mullite 3～10wt%; Graphite 20～40wt%; Phenolic resins 5～20wt%.
2. according to the described vacuum pouring heavy casting and forging of claim 1 low-temperature bake aluminium silicon-carbon Argon integral column of sagger, it is characterized in that: integral column of sagger caput position pre-buried steel Argon mouth.
3. according to claim 1 and the described vacuum pouring heavy casting and forging of claim 2 low-temperature bake aluminium silicon-carbon Argon integral column of sagger, it is characterized in that: the baking temperature lower limit before it uses is well below the conventional aluminium carbon refractory, and being baked to 500 ℃ can use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101789863A CN102240799A (en) | 2010-05-13 | 2010-05-13 | Low-temperature baked aluminum-silicon-carbon argon blowing integral stopper for vacuum pouring heavy castings and forgings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101789863A CN102240799A (en) | 2010-05-13 | 2010-05-13 | Low-temperature baked aluminum-silicon-carbon argon blowing integral stopper for vacuum pouring heavy castings and forgings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102240799A true CN102240799A (en) | 2011-11-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101789863A Pending CN102240799A (en) | 2010-05-13 | 2010-05-13 | Low-temperature baked aluminum-silicon-carbon argon blowing integral stopper for vacuum pouring heavy castings and forgings |
Country Status (1)
| Country | Link |
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| CN (1) | CN102240799A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114682768A (en) * | 2022-04-07 | 2022-07-01 | 青岛正望新材料股份有限公司 | Vacuum pouring method for large casting |
| CN115160000A (en) * | 2022-07-06 | 2022-10-11 | 青岛正望新材料股份有限公司 | Composite pug for producing functional refractory material for steelmaking and preparation method and application thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57150103A (en) * | 1981-05-27 | 1982-09-16 | Pioneer Electronic Corp | Supporting construction of oscillation system of pickup cartridge |
| CN1075307A (en) * | 1992-02-14 | 1993-08-18 | 淄川区洪山特殊耐火材料厂 | Aluminium carbon integrated filler rod |
| CN101205140A (en) * | 2006-12-23 | 2008-06-25 | 周成德 | High-carbon refractory and method for preparing same |
-
2010
- 2010-05-13 CN CN2010101789863A patent/CN102240799A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57150103A (en) * | 1981-05-27 | 1982-09-16 | Pioneer Electronic Corp | Supporting construction of oscillation system of pickup cartridge |
| CN1075307A (en) * | 1992-02-14 | 1993-08-18 | 淄川区洪山特殊耐火材料厂 | Aluminium carbon integrated filler rod |
| CN101205140A (en) * | 2006-12-23 | 2008-06-25 | 周成德 | High-carbon refractory and method for preparing same |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114682768A (en) * | 2022-04-07 | 2022-07-01 | 青岛正望新材料股份有限公司 | Vacuum pouring method for large casting |
| CN115160000A (en) * | 2022-07-06 | 2022-10-11 | 青岛正望新材料股份有限公司 | Composite pug for producing functional refractory material for steelmaking and preparation method and application thereof |
| CN115160000B (en) * | 2022-07-06 | 2023-03-14 | 青岛正望新材料股份有限公司 | Composite pug for producing functional refractory material for steelmaking and preparation method and application thereof |
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Application publication date: 20111116 |