CN201333524Y - One-step forming air permeable and blockage-prevention tundish upper nozzle - Google Patents
One-step forming air permeable and blockage-prevention tundish upper nozzle Download PDFInfo
- Publication number
- CN201333524Y CN201333524Y CNU2009201428016U CN200920142801U CN201333524Y CN 201333524 Y CN201333524 Y CN 201333524Y CN U2009201428016 U CNU2009201428016 U CN U2009201428016U CN 200920142801 U CN200920142801 U CN 200920142801U CN 201333524 Y CN201333524 Y CN 201333524Y
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- upper nozzle
- wall
- tundish upper
- blockage
- prevention
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Abstract
The utility model discloses a one-step forming air permeable and blockage-prevention tundish upper nozzle, which comprises an inner wall and an outer wall. The tundish upper nozzle is mainly characterized in that a gas channel is formed between the inner wall and the outer wall and is communicated with a gas inlet opening on the upper surface of a base in a one-step forming manner. The tundish upper nozzle has the advantages of low cost, high yield and better air permeable and block-prevention properties, so that the water nozzle has little possibility of blockage.
Description
Technical field
The utility model relates to a kind of one-time formed ventilative anti-clogging tundish upper nozzle.
Background technology
When the steel grade of cast aluminum killed steel and titaniferous and rare element, easily produce Al in the molten steel at inwall position, the mouth of a river
2O
3Field trash adhere to obstruction, cause continuous casting fluctuation of service and strand nonmetal inclusion, had a strong impact on and limited the performance and the raising of continuous casting line efficient.One of effective ways that prevent nozzle blocking are to mouth of a river inwall winding-up inert gas (argon gas).The method that present formation gas passes through is when making the mouth of a river, the interior bore portion at the compression moulding mouth of a river at first, at endoporus part surface parcel one deck paraffin, then interior bore portion is put into mould, add overcoat part pug, compression moulding once more, the goods after the moulding are through high-temperature process, paraffin decomposes the back and forms passage at its original position, so that argon gas is blown into.Its shortcoming is goods secondary charging, post forming, the program complexity, the cost height, and cause life cycle of the product longer, had a strong impact on the making process, Production Line ability and efficient are significantly reduced, simultaneously because the intensity of twice reinforced faying face is lower, interior bore portion easily and overcoat peel off, the percent defective height, accident rate is also higher when goods use.
Summary of the invention
For the mouth of a river goods that solve the making that prevents nozzle blocking that tradition uses must post forming problem, the utility model provides a kind of production method of one-time formed ventilative anti-clogging tundish upper nozzle and the product that obtains thereof.
The one-time formed ventilative anti-clogging tundish upper nozzle of the utility model is design like this: comprise inwall, outer wall, one gas passage is arranged between inner and outer wall, it communicates with the gas feed hole of base upper surface, and inwall is the vapor-permeable type material, and outer wall is the conventional aluminium material with carbon element.
The utility model is by being rolled into cylinder with the tabular material, and the outside is filled out vapor-permeable type pug, conventional aluminium carbonaceous pug respectively within it, makes ventilative anti-clogging tundish upper nozzle one-shot forming, product have ventilative preferably anti-blocking property, makes that the mouth of a river is difficult for stopping up.
Description of drawings
Fig. 1 is the generalized section of tundish upper nozzle.
The specific embodiment
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
Ventilative anti-clogging tundish upper nozzle as shown in Figure 1, its inwall 1 is the vapor-permeable type material, and outer wall 3 is the conventional aluminium material with carbon element, and a gas passage 2 is arranged between inner and outer wall, be that the tabular material forms because of pyrolytic in burning till, it communicates with the gas feed hole 4 of base upper surface.
Produce the method for one-time formed ventilative anti-clogging tundish upper nozzle, may further comprise the steps:
(1) vapor-permeable type pug, conventional aluminium material with carbon element pug were passed through mixing granulation and dry back ageing mixture 24 hours respectively;
(2) the thick cylinder that is rolled into diameter 80mm～150mm, long 100mm～300mm for the flat material that can at high temperature decompose of 1.5mm～4mm;
(3) cylinder is placed mould, cylinder interior filling vapor-permeable type pug, cylindrical outer filling conventional aluminium material with carbon element pug with the mould good seal, 80Mpa～120Mpa pressure compacting down in the static pressure cylinder such as hangs in, pressurize 10 minutes～20 minutes after the jolt ramming;
(4) the half-finished base upper surface after the demoulding bores a hole, and diameter is 8mm～12mm;
(5) semi-finished product 1100 ℃～1300 ℃ airtight burning till in shuttle kiln after drying, firing time 40 hours～60 hours;
(6) goods after will burning till are processed packing warehouse-in behind processing, the spraying inoxidzable coating.
Wherein, the material that can at high temperature decompose can be any in modified paraffin, plastics, rubber, the wood pulp paper.
Claims (2)
1, one-time formed ventilative anti-clogging tundish upper nozzle comprises inwall (1), outer wall (3), it is characterized in that: a gas passage (2) is arranged between inner and outer wall, and it communicates with the gas feed hole (4) of base upper surface.
2, one-time formed ventilative anti-clogging tundish upper nozzle according to claim 1, it is characterized in that: inwall (1) is the vapor-permeable type material, and outer wall (3) is the conventional aluminium material with carbon element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201428016U CN201333524Y (en) | 2009-01-19 | 2009-01-19 | One-step forming air permeable and blockage-prevention tundish upper nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201428016U CN201333524Y (en) | 2009-01-19 | 2009-01-19 | One-step forming air permeable and blockage-prevention tundish upper nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201333524Y true CN201333524Y (en) | 2009-10-28 |
Family
ID=41285166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009201428016U Expired - Fee Related CN201333524Y (en) | 2009-01-19 | 2009-01-19 | One-step forming air permeable and blockage-prevention tundish upper nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201333524Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102380591A (en) * | 2011-11-16 | 2012-03-21 | 中钢集团洛阳耐火材料研究院有限公司 | Preparation process of diffusion slit breathable water supply opening |
| CN102836994A (en) * | 2012-09-06 | 2012-12-26 | 上海宝明耐火材料有限公司 | Production method for submerged nozzle of sheet billet |
| CN105195724A (en) * | 2015-10-10 | 2015-12-30 | 无锡兴达节能科技股份有限公司 | Novel aluminum-carbon brick used for hot metal ladle |
| CN115819096A (en) * | 2022-12-09 | 2023-03-21 | 山东火天新材料科技有限公司 | Tundish breathable upper nozzle, breathable lining material used for tundish breathable upper nozzle and preparation method of breathable lining material |
-
2009
- 2009-01-19 CN CNU2009201428016U patent/CN201333524Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102380591A (en) * | 2011-11-16 | 2012-03-21 | 中钢集团洛阳耐火材料研究院有限公司 | Preparation process of diffusion slit breathable water supply opening |
| CN102836994A (en) * | 2012-09-06 | 2012-12-26 | 上海宝明耐火材料有限公司 | Production method for submerged nozzle of sheet billet |
| CN105195724A (en) * | 2015-10-10 | 2015-12-30 | 无锡兴达节能科技股份有限公司 | Novel aluminum-carbon brick used for hot metal ladle |
| CN115819096A (en) * | 2022-12-09 | 2023-03-21 | 山东火天新材料科技有限公司 | Tundish breathable upper nozzle, breathable lining material used for tundish breathable upper nozzle and preparation method of breathable lining material |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091028 Termination date: 20130119 |