CN202427955U - Liquid guide pipe for spray forming - Google Patents
Liquid guide pipe for spray forming Download PDFInfo
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- CN202427955U CN202427955U CN2011203614670U CN201120361467U CN202427955U CN 202427955 U CN202427955 U CN 202427955U CN 2011203614670 U CN2011203614670 U CN 2011203614670U CN 201120361467 U CN201120361467 U CN 201120361467U CN 202427955 U CN202427955 U CN 202427955U
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Abstract
The utility model relates to a liquid guide pipe for spray forming. A pipe body of the liquid guide pipe comprises a funneled upper part and a cylindrical lower part. The liquid guide pipe is characterized in that the pipe body of the liquid guide pipe is in a double-layer or three-layer composite structure, wherein the double-layer composite structure comprises an inner layer and an outer layer, the three-layer composite structure comprises an inner layer, a transition layer and an outer layer. The liquid guide pipe can effectively avoid the washing erosion effect of high-speed atomized airflow of the outer layer; fire clay and an insulating refractory are added in the transition layer to effectively avoid temperature transfer between the inner layer and the outer layer, so that the temperature gradient of a refractory in the inner layer is reduced, therefore, the requirements on thermal shock of the refractory of the inner layer is reduced. Due to the adoption of the brand-new composite liquid guide pipe, the atomization process is stabilized, and the yield of spray forming is further increased.
Description
Technical field
The utility model relates to reaction-injection moulding equipment, and particularly a kind of reaction-injection moulding is used catheter.
The comparison of technology
Reaction-injection moulding is the new technology that a kind of method that adopts rapid solidification prepares special material, and this technology is with the dual characteristics of nearly end form processing and semi-solid processing.Reaction-injection moulding is that the Singer by Britain teaches in the seventies and proposes the earliest; Its principle is will be atomized into tiny molten drop from the alloy flow that process catheter in the tundish flows out with atomizer inner high voltage inert gas; Molten drop flies under the effect of high velocity air and is cooled off gradually; Before these molten drops solidify as yet fully, it is not deposited on the depositor with definite shape; Through changing molten drop jet and the relative position of depositor and the forms of motion of depositor, can obtain dish (post), pipe (ring), plate difform semi-finished product blanks such as (bands).
At present, in process of production, limit injection is shaped to have a bit in the factor pour into power and does not wash away for catheter is anti-, thereby the bottom suffers erosion and causes the molten steel experiment of can't falling to stop in casting process.
Catheter mainly uses a kind of material through waiting static pressure processing or moulding by casting.The catheter of single material has run into bigger difficulty in the process that the atomizing moulding is used; A kind of reason is that the catheter that in this technology, uses is often very low without preheating or preheat temperature; And then in such cases through the molten steel about 1600 degree; The temperature difference limit that refractory material received in moment is very big, if cracking phenomena very easily takes place the relatively poor catheter of thermal shock resistance.Another kind of reason is that the catheter end receives washing away of high velocity air in the process of atomizing, makes terminal skin receive great cooling and internal layer still feeds the molten steel of higher temperature, and the antiscour of anti-material and thermal shock resistance require very high in such cases.Because the nested atomizer in catheter below, so the catheter end usually receives washing away of high speed atomization air flow, the result who washes away mainly contains:
1) the catheter end receives the erosion of high velocity air, and after the end loss, atomization air flow and compound action capillaceous make the top molten steel to fall, thereby cause experiment to stop, the molten steel residue;
2) after molten steel flows out from catheter, because the corrosion function of terminal high velocity air, make the attenuation of catheter end thickness, catheter internal and external temperature gradient further increases, and makes the catheter cracking when serious.
3) another shortcoming of the terminal anti-material erosion of catheter is exactly to make that the atomizing appearance is uneven, thereby causes the ingot blank shaping inhomogeneous.
Chinese patent 200820152397.6 proposes a kind of catheter heater, and catheter is positioned at the centre of nozzle, and it comprises, heat conductive rod inserts in the catheter, and this heat conductive rod is pure graphite material, and perhaps inside is graphite, and the outside is a refractory material; Load coil is arranged at the heat conductive rod outside.Load coil is to be used for the induction coil of tundish heating or the induction coil that disposes separately.Described heat conductive rod is positioned at the catheter center, and catheter lower surface or concordant is stretched out in the bottom, and the position can be regulated according to actual needs.The utility model adopts brand-new catheter mode of heating; Fast catheter being heated to production at short notice needs temperature, shortens the whole production stand-by period, and simultaneously that catheter is inner column liquid metal is transformed into ring-type; Improve the spraying liquid metal effect, improve the deposit preform quality.
Mainly there is following shortcoming in this patented method in the process of using:
1, can't strengthen the intensity of catheter, catheter still is etched in the process of jet atomization;
2, the graphite heating device is complicated, arranges that in vacuum drying oven too much device causes other problem easily;
Summary of the invention
The purpose of the utility model is to design a kind of reaction-injection moulding and uses catheter; Can effectively avoid the corrosion function of washing away of outer high speed atomization air flow; Transition zone adds fire clay and insulating refractory; Can effectively avoid the transmission of temperature between the ectonexine, the thermograde of internal layer refractory material is reduced, thus feasible thermal shock resistance requirement reduction to the internal layer refractory material.Adopt brand-new compound catheter can also make atomization process stable, the effect that improves the injection molding recovery rate.
For achieving the above object, the technical scheme of the utility model is:
A kind of reaction-injection moulding is used catheter; The catheter body comprises and is funnel shaped top and cylindrical bottom; It is characterized in that the body of described catheter is bilayer or three-layer composite structure, wherein; Two-layer composite comprises internal layer and skin, and three-layer composite structure comprises internal layer, transition zone and skin.
Further, the compound mode of the two-layer composite ectomesoderm of described catheter body and internal layer comprises jacket-type and embedded.
The body two-layer composite of described catheter is positioned at the body bottom.
In the two-layer composite of described catheter body, outer BN, the ZrO of adopting
2, graphite, zirconium carbon, quartz, perhaps metal material.
The three-layer composite structure ectomesoderm of described catheter body and the fit system of transition zone and internal layer comprise jacket-type, embedded.
Screw-type assembling or buckle-type assembling are adopted in jacket-type, embedded cooperating between the three-layer composite structure ectomesoderm of described catheter body and transition zone and the internal layer.
The body three-layer composite structure of described catheter is positioned at the body bottom.
In the three-layer composite structure of described catheter body, transition zone adopts fire clay, insulating refractory.
Described transition zone adopts to stir and is shaped, coats shaping, spray formation or brushwork forming.
Described outer drawing, coating shaping or the winding shaping of adopting.
Described metal material is metallic aluminium, metallic copper, stainless steel or carbon steel.
The utility model catheter adopts the complex method process and assemble to form; Wherein the internal layer catheter adopts anti-washing away and thermal shock resistance material preferably commonly used; Transition zone adopts fire clay or other heat-insulating materials to fill; And outer good refractory material or the metal material of scour resistance that adopt solves the bad working environments problem that this catheter receives respectively with this in atomization process.
The major advantage of the utility model:
(1) adopt the combined type catheter, can make the material of ectonexine catheter play different effects, the internal layer catheter plays the effect of water conservancy diversion molten steel, and outer catheter plays the effect that anti-atomization gas washes away;
(2) adopt the combined type catheter, can be owing to the catheter end is etched the uneven phenomenon of the atomizing that occurs;
(3) adopt the combined type catheter, can avoid the phenomenon that latter stage, molten steel can't flow out occurring, improved the injection molding recovery rate;
(4) adopt the combined type catheter, can reduce the requirement of internal layer catheter material greatly, further reduce use high material catheter to be brought expensive;
(5) adopt the combined type catheter, the batch process of the realization catheter that can be more prone to and precision control.
Description of drawings
Fig. 1 is the structure cutaway view of the utility model two layer composite structure embodiment.
Fig. 2 is the structure cutaway view of the utility model embodiment (jacket-type).
Fig. 3 is the structure cutaway view of the utility model embodiment (embedded).
Fig. 4 is the structure cutaway view of the utility model three-layer composite structure embodiment.
Fig. 5 is the structure cutaway view of the utility model embodiment (jacket-type).
Fig. 6 is the structure cutaway view of the utility model embodiment (embedded).
The specific embodiment
Referring to Fig. 1～Fig. 6; A kind of reaction-injection moulding of the utility model is used catheter, and catheter body 1 comprises and be funnel shaped top 11 and cylindrical bottom 12, wherein; The body of described catheter is bilayer or three-layer composite structure; Wherein, two-layer composite comprises internal layer 101 and skin 102, and three-layer composite structure comprises internal layer 101, transition zone 103 and outer 102.
Referring to 2, Fig. 3, the two-layer composite ectomesoderm of described catheter body and the compound mode of internal layer comprise jacket-type and embedded.
The body two-layer composite of described catheter is positioned at the body bottom.
In the two-layer composite of described catheter body, outer BN, the ZrO of adopting
2, graphite, zirconium carbon, quartz, perhaps metal material.
Referring to Fig. 5, Fig. 6, the three-layer composite structure ectomesoderm of described catheter body 1 and the fit system of transition zone and internal layer comprise jacket-type, embedded.
Screw-type assembling or buckle-type assembling are adopted in jacket-type, embedded cooperating between the three-layer composite structure ectomesoderm of described catheter body and transition zone and the internal layer.
The body three-layer composite structure of described catheter is positioned at the body bottom.
In the three-layer composite structure of described catheter body, transition zone adopts fire clay, insulating refractory.
Described transition zone adopts to stir and is shaped, coats shaping, spray formation or brushwork forming.
Described outer drawing, coating shaping or the winding shaping of adopting.
Described metal material is metallic aluminium, metallic copper, stainless steel or carbon steel.
Reaction-injection moulding is the preparation method of the 3rd metalloid material that after casting metallurgical and powder metallurgy process, grows up.Spray forming technology is a kind of advanced material technology of preparing, and domestic and international many research institutions and enterprise drop into this new technology of great amount of manpower and material resources research and development, and obtain remarkable progress.Catheter is the key equipment of whole spray deposition processing; The utility model can effectively improve the terminal abrasion resistance of catheter; Thereby avoid to stablize atomization process, improve the injection molding recovery rate simultaneously owing to the unstable various experimental defects that occur of catheter.
Claims (12)
1. a reaction-injection moulding is used catheter; The catheter body comprises and is funnel shaped top and cylindrical bottom; It is characterized in that the body of described catheter is bilayer or three-layer composite structure, wherein; Two-layer composite comprises internal layer and skin, and three-layer composite structure comprises internal layer, transition zone and skin.
2. reaction-injection moulding as claimed in claim 1 is used catheter, it is characterized in that, the two-layer composite ectomesoderm of described catheter body and the compound mode of internal layer comprise jacket-type and embedded.
3. according to claim 1 or claim 2 reaction-injection moulding is used catheter, it is characterized in that the body two-layer composite of described catheter is positioned at the body bottom.
4. according to claim 1 or claim 2 reaction-injection moulding is used catheter, it is characterized in that, and in the two-layer composite of described catheter body, outer BN, the ZrO of adopting
2, graphite, zirconium carbon, quartz or metal material.
5. reaction-injection moulding as claimed in claim 1 is used catheter, it is characterized in that, the three-layer composite structure ectomesoderm of described catheter body and the fit system of transition zone and internal layer comprise jacket-type, embedded.
6. reaction-injection moulding as claimed in claim 5 is used catheter, it is characterized in that, screw-type assembling or buckle-type assembling are adopted in jacket-type, embedded cooperating between the three-layer composite structure ectomesoderm of described catheter body and transition zone and the internal layer.
7. use catheter like claim 1 or 5 or 6 described reaction-injection mouldings, it is characterized in that, the body three-layer composite structure of described catheter is positioned at the body bottom.
8. use catheter like claim 1 or 5 or 6 described reaction-injection mouldings, it is characterized in that, in the three-layer composite structure of described catheter body, transition zone adopts fire clay or insulating refractory.
9. reaction-injection moulding as claimed in claim 7 is used catheter, it is characterized in that, in the three-layer composite structure of described catheter body, transition zone adopts fire clay or insulating refractory.
10. use catheter like claim 1 or 5 or 6 described reaction-injection mouldings, it is characterized in that, described transition zone adopts to stir and is shaped, coats shaping, spray formation or brushwork forming.
11. use catheter, it is characterized in that described outer drawing, coating shaping or the winding shaping of adopting like claim 1 or 5 or 6 described reaction-injection mouldings.
12. reaction-injection moulding as claimed in claim 4 is used catheter, it is characterized in that, described metal material is metallic aluminium, metallic copper, stainless steel or carbon steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203614670U CN202427955U (en) | 2011-09-23 | 2011-09-23 | Liquid guide pipe for spray forming |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203614670U CN202427955U (en) | 2011-09-23 | 2011-09-23 | Liquid guide pipe for spray forming |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202427955U true CN202427955U (en) | 2012-09-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203614670U Expired - Fee Related CN202427955U (en) | 2011-09-23 | 2011-09-23 | Liquid guide pipe for spray forming |
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| CN (1) | CN202427955U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105058552A (en) * | 2015-08-05 | 2015-11-18 | 吴国庆 | Method for manufacturing atomized flow guide pipe |
| CN105328199A (en) * | 2015-12-02 | 2016-02-17 | 横店集团东磁股份有限公司 | Novel gas atomization spray nozzle and implementation method thereof |
-
2011
- 2011-09-23 CN CN2011203614670U patent/CN202427955U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105058552A (en) * | 2015-08-05 | 2015-11-18 | 吴国庆 | Method for manufacturing atomized flow guide pipe |
| CN105328199A (en) * | 2015-12-02 | 2016-02-17 | 横店集团东磁股份有限公司 | Novel gas atomization spray nozzle and implementation method thereof |
| CN105328199B (en) * | 2015-12-02 | 2018-08-28 | 横店集团东磁股份有限公司 | A kind of Novel air atomizer and its implementation |
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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 |
Granted publication date: 20120912 Termination date: 20200923 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |