CN101007423A - Vibrating solidification processing method of fused cast refractory - Google Patents
Vibrating solidification processing method of fused cast refractory Download PDFInfo
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- CN101007423A CN101007423A CN 200710053915 CN200710053915A CN101007423A CN 101007423 A CN101007423 A CN 101007423A CN 200710053915 CN200710053915 CN 200710053915 CN 200710053915 A CN200710053915 A CN 200710053915A CN 101007423 A CN101007423 A CN 101007423A
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Abstract
The invention discloses a vibration solidification method of fused casting fire resistant material. First cast molten material into mold cavity through the casting head; when the molten material in mold cavity begins to congeal, vibrate the casting molten material in mold cavity through the vibration body, then take out the molten material in mold cavity after it consolidates completely. Impose a vibration field to the molten material in mold cavity ate the solidification initial stage to making the liquid molten material move up and down, on one hand the grown dendrites are broken, thereby new small grains are formed; On the other hand the upper and lower movement of liquid molten material increase condensate depression of itself, it is more conducive to shape new nucleus; thus the columnar crystal area is shrine, and the equiax crystal area is expanded and refined, the structural and component segregation are resolved effectively. The invention is helpful to reduce the size of the casting riser and improve the corrosion resistance of fire resistive material products.
Description
Technical field
The present invention relates to the production method of castable refractory, especially relate to the vibrating solidification processing method of castable refractory.
Background technology
Castable refractory is the important foundation material that is used to build by laying bricks or stones various glass stoves, and the quality of its quality directly affects the quality of glassware and the technical merit of glass stove.In the production method of known castable refractory, in order to guarantee the flowability of solution, melt substance must have certain degree of superheat, after casting is finished, melt substance has a long mistake cold period before solidifying fully, because mo(U)ld face is different with the cooling velocity of foundry goods inside, cause final casting product to have crystallographic orientation structure heterogeneous: promptly near cast(ing) surface, form comparatively tiny equiax crystal, and at the center or cool off the thicker column crystal of position formation at last; Because the variation of cooling velocity, the atom in cast(ing) surface and central area has different migration velocities, so also can cause the topochemistry component segregation of foundry goods; In cooling procedure, the heavy metallic oxide particle such as the ZrO of some first crystallization
2And Cr
2O
3Weight segregation phenomena that can cause because of precipitation makes between finished product fragment of brick and the fragment of brick, chemical composition and architectural difference occur between the different parts of same fragment of brick.Simultaneously in casting cycle, because the variation of liquid volume in cooling procedure (the liquid contraction and solidification shrinkage) is solidified when finishing, in the inner defectives such as shrinkage cavity, shrinkage porosite that easily produce of foundry goods, for guaranteeing to obtain to perfect foundry goods, must there be enough melt liquids to carry out feeding.But when adopting common riser feeding, because the restriction of heat transfer condition, make the solution that rising head is interior and casting mold is interior have identical flowability, add the coagulating property that castable refractory itself is intrinsic, have ingotism body appearance when solidifying beginning inevitably, thereby hindered flowing and feeding of liquid through whole die cavity.The flow velocity of liquid is too fast when casting in addition, also has a large amount of gas or is mingled with to be involved in casting mold, thereby cause pore and dreg defect.For eliminating the influence of these unfavorable factors, take to strengthen at present the method for rising head size, but this has not only increased the consumption of solution more, the while has also been strengthened the workload of remove feeders, has increased to produce.How eliminating the structure segregation and the component segregation of castable refractory effectively, reduce the gas content in the foundry goods, is the problem that those skilled in the art study always to reach the compactness and the corrosion resistance that improve foundry goods, to reduce production costs.
Summary of the invention
The object of the present invention is to provide and a kind ofly improve the anti-section product quality of founding, prolong the anti-section product of the founding castable refractory vibrating solidification processing method in service life.
For achieving the above object, the present invention can take following technical proposals:
The vibrating solidification processing method of castable refractory of the present invention, at first by rising head to casting mold inner chamber casting melt substance; When the melt substance in the casting mold begins to solidify, make the casting melt substance in the casting mold produce vibration, treat that the interior melt substance of casting mold solidifies the back taking-up fully and gets final product by vibrating body.
Described vibrating body is arranged on bottom, sidepiece or the casting mold incubator outside of casting mold.
The invention has the advantages that at very low this characteristic of intensity of the melt substance in the casting mold at the early solidification ingotism, put on an oscillator field to it, the melt substance that is in liquid state is moved up and down, make the dendrite of having grown up be interrupted fragmentation on the one hand, thereby form new small grains; Moving up and down of liquid molten material improved the degree of supercooling of self on the other hand, more helps forming new nucleus; Thereby dwindled columnar zone, enlarge and refinement the equiax crystal district, efficiently solve structure segregation and component segregation problem.Simultaneously, the effusion of gas and the come-up that is mingled with have also been quickened in vibration, have guaranteed the unimpeded of feeding passage, make on the rising head puffs and move, and have improved the feeding effect of rising head greatly.The present invention will help to reduce the casting pressing port size, improve the corrosion stability of fire resistive material product, and according to the fused cast refractory brick that the present invention produces, the shrinkage porosity defect of contraction cavity of energy crystal grain thinning, minimizing castable refractory improves its density, and it is suitable for comprising AZS (AI
2O
3-ZrO
2-SiO
2) and alpha-beta AI
2O
3At interior various casting refractory material products.
The specific embodiment
The vibrating solidification processing method of castable refractory of the present invention, at first by rising head to casting mold inner chamber casting melt substance; When beginning to solidify, the melt substance in the casting mold make the melt substance in the casting mold produce vibration by the vibrating body that is arranged on casting mold bottom, sidepiece or casting mold incubator outside, can choose suitable vibration parameters according to the size of product etc. in when vibration, the dendrite that early solidification is generated in casting mold shakes disconnected and suppresses it and further grow up by the dendrite form, treats in the casting mold that melt substance solidifies the back fully and takes out and get final product.Be simplified structure, this vibrating body can drive steel plate with vibrating motor and be separately positioned on casting mold bottom, sidepiece or casting mold incubator outside and wait and realize, certainly for reaching this purpose, also can adopt other structural vibrations bodies.
Claims (2)
1, a kind of vibrating solidification processing method of castable refractory is characterized in that: at first by rising head to casting mold inner chamber casting melt substance; When the melt substance in the casting mold begins to solidify, make the casting melt substance in the casting mold produce vibration, treat that the interior melt substance of casting mold solidifies the back taking-up fully and gets final product by vibrating body.
2, the vibrating solidification processing method of castable refractory according to claim 1 is characterized in that: described vibrating body is arranged on bottom, sidepiece or the casting mold incubator outside of casting mold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710053915 CN101007423A (en) | 2007-01-31 | 2007-01-31 | Vibrating solidification processing method of fused cast refractory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710053915 CN101007423A (en) | 2007-01-31 | 2007-01-31 | Vibrating solidification processing method of fused cast refractory |
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| Publication Number | Publication Date |
|---|---|
| CN101007423A true CN101007423A (en) | 2007-08-01 |
Family
ID=38696196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710053915 Pending CN101007423A (en) | 2007-01-31 | 2007-01-31 | Vibrating solidification processing method of fused cast refractory |
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| CN (1) | CN101007423A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109722585A (en) * | 2017-10-27 | 2019-05-07 | 南京晨光艺术工程有限公司 | A kind of novel melt material |
| CN114573342A (en) * | 2022-01-29 | 2022-06-03 | 河南省瑞泰科实业集团有限公司 | Preparation method of fusion-cast refractory product and product prepared by preparation method |
| CN118002767A (en) * | 2024-04-10 | 2024-05-10 | 东北大学 | Device and process method for vibration chilling nucleation |
| CN119175356A (en) * | 2024-11-22 | 2024-12-24 | 中国航发北京航空材料研究院 | Reinforced feeding method of ZL205A alloy casting |
-
2007
- 2007-01-31 CN CN 200710053915 patent/CN101007423A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109722585A (en) * | 2017-10-27 | 2019-05-07 | 南京晨光艺术工程有限公司 | A kind of novel melt material |
| CN114573342A (en) * | 2022-01-29 | 2022-06-03 | 河南省瑞泰科实业集团有限公司 | Preparation method of fusion-cast refractory product and product prepared by preparation method |
| CN118002767A (en) * | 2024-04-10 | 2024-05-10 | 东北大学 | Device and process method for vibration chilling nucleation |
| CN119175356A (en) * | 2024-11-22 | 2024-12-24 | 中国航发北京航空材料研究院 | Reinforced feeding method of ZL205A alloy casting |
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Open date: 20070801 |