CN205996183U - A kind of iron-based prealloy powder melting tundish insulation construction - Google Patents
A kind of iron-based prealloy powder melting tundish insulation construction Download PDFInfo
- Publication number
- CN205996183U CN205996183U CN201620980727.5U CN201620980727U CN205996183U CN 205996183 U CN205996183 U CN 205996183U CN 201620980727 U CN201620980727 U CN 201620980727U CN 205996183 U CN205996183 U CN 205996183U
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- China
- Prior art keywords
- tundish
- insulation layer
- layer
- heat
- iron
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Abstract
The utility model discloses a kind of iron-based prealloy powder melting tundish insulation construction, it is made up of iron sheet layer, thermal insulation layer, heat-insulation layer, tundish, tundish insulation construction includes that outsourcing iron sheet layer, thermal insulation layer, heat-insulation layer, thermal insulation layer are connected with iron sheet layer, heat-insulation layer respectively from outside to inside successively, is tightly connected with magnesite refractory between heat-insulation layer, thermal insulation layer and outsourcing iron sheet layer.Simple structure, life-span length, the little, effect of investment are obvious, constitute a kind of insulation construction with the material with fire resisting, insulation effect, the thermal stress that so tundish inner metal liquid temperature drop is little, the temperature difference causes is little, tundish occurs the blocking of leakage eye and the probability of cracking to substantially reduce so that the service life of tundish by 8 10 stoves/bring up to, 18 20 stoves/.
Description
Technical field
The utility model belongs to iron-based prealloy powder melting technique field, and in particular to a kind of iron-based prealloy powder melting is used
Tundish insulation construction.
Background technology
Tundish is to prepare one of smelting equipment of iron-based prealloy powder.In the fusion process for preparing iron-based prealloy powder
In, molten metal passes through tundish, enters atomizer atomization.
Traditional tundish layer structure includes graphite linings and iron sheet layer, and tundish insulation, effect of heat insulation are poor.In atomization life
During product, the internal ferrous metals melt temperature of tundish is up to 1600oMore than C, and graphite has good heat conductivility, molten metal
Heat transfer causes outside wall temperature to be up to 600 to tundish outer walloC.
Tundish inner metal liquid temperature drop is excessive, on the one hand easily causes Lou eye blocking, on the other hand will be to melt atomization powder
Last quality is adversely affected.Additionally, the thermal stress caused by tundish internal-external temperature difference causes tundish to be easily broken.In tradition
Between wrap using after 8-10 stove, there is the blocking of leakage eye or middle bags burst and scraps in Chang Yinwei.
The utility model is improved for existing deficiency, and a kind of tundish insulation construction is from outside to inside successively by outsourcing
Iron sheet layer, thermal insulation layer, heat-insulation layer are constituted.The thermal stress that so molten metal temperature drop is little, the temperature difference causes is little, and tundish occurs leakage eye to block up
The probability of plug and cracking is substantially reduced so that the service life of tundish by 8-10 stove/bring up to 18-20 stove/.
Utility model content
The purpose of this utility model is to there are provided a kind of iron-based prealloy powder melting tundish insulation construction, structure
Simply, invest little, effect substantially, reduce the temperature drop of tundish inner metal liquid, reduce the probability that temperature drop causes leakage eye blocking, reduce
The thermal stress that the temperature difference causes, improves tundish service life, reduces production cost.
In order to realize above-mentioned purpose, the utility model adopts following technical measures：
A kind of iron-based prealloy powder melting tundish insulation construction, it by iron sheet layer, thermal insulation layer, heat-insulation layer, most in be
Tundish constitutes, it is characterised in that：Tundish insulation construction include successively from outside to inside outsourcing iron sheet layer, thermal insulation layer, heat-insulation layer,
It is tundish in most.Thermal insulation layer is connected with iron sheet layer, heat-insulation layer respectively, uses magnesium between heat-insulation layer, thermal insulation layer and outsourcing iron sheet layer
Matter fire clay is tightly connected so that heat-insulation layer, thermal insulation layer and iron sheet layer form the insulation construction of an entirety.
Described heat-insulation layer lightweight clay material, described thermal insulation layer alumina fibre material, described outer iron clad
The common ferrous material of cortex.
A kind of iron-based prealloy powder melting tundish insulation construction is in U or V-type.
The utility model compared with prior art, with advantages below and effect：
Simple structure, life-span length, invest little, effect substantially, with a kind of insulation of material composition with fire resisting, insulation effect
Structure, the thermal stress that such tundish inner metal liquid temperature drop is little, the temperature difference causes are little, tundish occur leakage eye blocking and cracking several
Rate is substantially reduced so that the service life of tundish by 8-10 stove/bring up to 18-20 stove/.
Description of the drawings
A kind of iron-based prealloy powder of Fig. 1 melting generalized section of tundish insulation construction.
Wherein：1. outsourcing iron sheet layer, 2. thermal insulation layer, 3. heat-insulation layer, 4. tundish.
Specific embodiment
Embodiment 1：
A kind of iron-based prealloy powder melting tundish insulation construction, it by iron sheet layer 1, thermal insulation layer 2, heat-insulation layer 3, most in
Constitute for tundish 4, it is characterised in that：4 insulation construction of tundish include successively from outside to inside outsourcing iron sheet layer 1, thermal insulation layer 2,
Heat-insulation layer 3, most in be tundish 4.Thermal insulation layer is connected with iron sheet layer 1, heat-insulation layer 3 respectively, heat-insulation layer 3, thermal insulation layer 2 and outer iron clad
It is tightly connected with magnesite refractory between cortex 1 so that heat-insulation layer 3, thermal insulation layer 2 and iron sheet layer 1 form the insulation of an entirety
Structure.The described lightweight clay material of heat-insulation layer 3, the described alumina fibre material of thermal insulation layer 2, described outsourcing iron sheet
Layer 1 uses common ferrous material.
It is exemplified below better embodiment of the present utility model.Tundish 4 senior magnesia material, thickness 20-25mm；Protect
The soft clay material of warm layer 3, thickness 30-35mm；The alumina fibre of thermal insulation layer 2, thickness 15-20mm；Outsourcing iron sheet layer 1
With general iron sheet material, thickness 5-10mm.Wherein, close with magnesite refractory between heat-insulation layer 3, thermal insulation layer 2 and outsourcing iron sheet layer 1
Envelope connection.
After the utility model use, reduce can the temperature drop of tundish inner metal liquid, reduce the probability of leakage eye blocking, reduce
Thermal stress, improves service life, reduces cost.
Claims (4)
1. a kind of iron-based prealloy powder melting tundish insulation construction, it is by iron sheet layer（1）, thermal insulation layer（2）, heat-insulation layer（3）、
Tundish（4）Composition, it is characterised in that：Tundish（4）Insulation construction includes outsourcing iron sheet layer from outside to inside successively（1）, heat-insulated
Layer（2）, heat-insulation layer（3）, thermal insulation layer（2）Respectively with iron sheet layer（1）, heat-insulation layer（3）It is connected, heat-insulation layer（3）, thermal insulation layer（2）And
Outsourcing iron sheet layer（1）Between be tightly connected with magnesite refractory.
2. a kind of iron-based prealloy powder melting tundish insulation construction according to claim 1, it is characterised in that：Described
Heat-insulation layer（3）Use soft clay material, thickness 30-35mm.
3. a kind of iron-based prealloy powder melting tundish insulation construction according to claim 1, it is characterised in that：Described
Thermal insulation layer（2）Use alumina fibre material, thickness 15-20mm.
4. a kind of iron-based prealloy powder melting tundish insulation construction according to claim 1, it is characterised in that：Described
Tundish（4）Use magnesia material, thickness 20-25mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620980727.5U CN205996183U (en) | 2016-08-30 | 2016-08-30 | A kind of iron-based prealloy powder melting tundish insulation construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620980727.5U CN205996183U (en) | 2016-08-30 | 2016-08-30 | A kind of iron-based prealloy powder melting tundish insulation construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205996183U true CN205996183U (en) | 2017-03-08 |
Family
ID=58194973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620980727.5U Expired - Fee Related CN205996183U (en) | 2016-08-30 | 2016-08-30 | A kind of iron-based prealloy powder melting tundish insulation construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205996183U (en) |
-
2016
- 2016-08-30 CN CN201620980727.5U patent/CN205996183U/en not_active Expired - Fee Related
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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: 20170308 Termination date: 20210830 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |