CN205099738U - Double -deck heater protective case - Google Patents
Double -deck heater protective case Download PDFInfo
- Publication number
- CN205099738U CN205099738U CN201520726357.8U CN201520726357U CN205099738U CN 205099738 U CN205099738 U CN 205099738U CN 201520726357 U CN201520726357 U CN 201520726357U CN 205099738 U CN205099738 U CN 205099738U
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- CN
- China
- Prior art keywords
- layer sleeve
- sleeve pipe
- inner layer
- sleeve
- double
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a double -deck heater protective case, this dual layer protection sleeve pipe comprises inlayer sleeve pipe and outer sleeve pipe, layer sheathed tube periphery including the outer cover pipe box, outer sleeve pipe and inlayer sheathed tube top are the open end, and the bottom is the blind end, and leaves closed clearance between inlayer sleeve pipe and the outer sleeve pipe. The utility model discloses double -deck heater protection tube greatly improves the thermal shock resistance that the heater protective case of degassing apparatus was processed to aluminium to show extension sheathed tube life.
Description
Technical field
The utility model relates to for the heater protecting accessory that air-removal equipment is equipped with in aluminium processing industry, specifically a kind of double boiler protective casing and working method.
Background technology
In aluminium processing industry, usually with heater heats process aluminium liquid in the degasification casing of air-removal equipment, the outside of well heater, usually with protective casing protection, avoids well heater directly to contact aluminium liquid.
Traditional heater protecting sleeve pipe is all adopt the mode of individual layer cast to process, but this individual layer heater protecting sleeve pipe usual life-span is shorter, mainly there is localized cracks after frequently suffering thermal shocking in protective casing, and the aluminium liquid of jacket exterior is penetrated in sleeve pipe by crackle and causes well heater short circuit to burn; Double shielding sleeve pipe is bilayer structure; when outer layer sleeve is cracked by thermal shocking; aluminium liquid penetrates between cover outer tube layer and internal layer by crackle; start condensation afterwards; thermal shocking can not be formed for inner layer sleeve; cover inner tube layer also there will not be crackle to cause aluminising, finally extends the work-ing life of sleeve pipe.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of double boiler protective casing and working method, makes this heater protecting sleeve pipe both meet service requirements, also improves the work-ing life of protective casing.
The utility model solves the problems of the technologies described above with following technical scheme:
A kind of double boiler protective sleeve of the utility model; it is made up of inner layer sleeve and outer layer sleeve, and outer layer sleeve is enclosed within the periphery of inner layer sleeve, and the top of outer layer sleeve and inner layer sleeve is opening end; bottom is blind end, and leaves closing gap between inner layer sleeve and outer layer sleeve.
Inner layer sleeve of the present utility model adopts vibration casting shaping; outer layer sleeve is that core rod vibration casting is shaping with inner layer sleeve; and make between inner layer sleeve and outer layer sleeve, to form the very thin gap of one deck; use the utility model double boiler protective tube; high degree improves the performance of heater protecting sleeve pipe heat shock resistance; extend the work-ing life of protective casing, finally improve the labour intensity of client and enhance productivity.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model double shielding sleeve pipe.
Fig. 2 is fabrication processing figure of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the technical solution of the utility model is described further:
As shown in Figure 1; the utility model double boiler protective sleeve; it is made up of inner layer sleeve 1 and outer layer sleeve 2; outer layer sleeve 2 is enclosed within the periphery of inner layer sleeve 1; the top of outer layer sleeve 2 and inner layer sleeve 1 is opening end; bottom is blind end, and leaves gap between inner layer sleeve and outer layer sleeve, and inner layer sleeve is closed connecting with the top of outer layer sleeve.
The work flow of the utility model double boiler protective sleeve as shown in Figure 2, specifically comprises following operation steps:
1) inner layer sleeve mould and mould material prepare
Operator get the inner layer sleeve mould through being up to the standards; be fixed on bumper by bundling belt; and be ready to pour into a mould raw material; the mould material that double boiler protective casing uses is SiC, and operator require to weigh powder body material and water according to the actual amount of water watering fluence and material supplier and provide.
2) inner layer sleeve mould material batch mixing
The powder body material weighed up is dropped into stirrer, stirs several minutes in advance, add water gradually, stir while add waterside, total churning time is no more than 15 minutes.
3) inner layer sleeve vibration casting is shaping
1. open bumper, require routinely to regulate vibration frequency, start slowly to pour into a mould, the about per kilogram material of pouring speed is no less than 5 minutes.
2. after slurry cast terminates, then vibrations are no more than 10 minutes, and cast vibrations must can see slurry.
3. mould bundling belt is unclamped, use doctor blade casting area.
4) inner layer sleeve leaves standstill health, the demoulding
1. the inner layer sleeve of casting complete at room temperature keeps leaving standstill and solidifying.
2. inner layer sleeve leaves standstill and can start the demoulding after solidifying 24 hours, and demoulding special tool is micro-loose nut in order, lays down stress, is turning on mold-locked nut successively.
3. after the demoulding, with cotton wiping sleeve tube outer surface, as phaneropore need be repaired by body mould material.
4. the inner layer sleeve after the demoulding must health 2-3 days.
5) take inner layer sleeve as core rod, outer layer sleeve external mold is installed
1. the inner layer sleeve that terminates of health is for making the core rod of outer layer sleeve mould.
2. fix inner layer sleeve, at the flexible graphite paper of the equal bag one deck 0.2mm of the outside surface of inner layer sleeve and outer bottom, fix with transparent adhesive tape.
3. the outer layer sleeve mould be up to the standards is enclosed within inner layer sleeve and is also fixed on together on bumper.
6) outer layer sleeve mould material batch mixing
With step 2) operation identical.
7) outer layer sleeve vibration casting
By step 3) inner layer sleeve pouring section operates, and uses doctor blade casting area, makes inner layer sleeve form closed connecting with the top of outer layer sleeve.
8) outer layer sleeve leaves standstill health
With step 4) operation identical.
9) double shielding sleeve pipe is integral sintered
The double shielding sleeve pipe of casting complete sinters with reference to " guide of refractory materials sintering process ", and in sintering process, flexible graphite paper is burnt, thus makes to form gap between inner layer sleeve and outer layer sleeve, and is closed.
The utility model double boiler protective casing compares, in table 1 with conventional monolayers protective casing:
Table 1
| Project | The utility model double shielding sleeve pipe | Conventional monolayers protective casing |
| Molding mode | Twice casting | One-time cast-forming |
| Shaping characteristic | Twice shaping once sintered, and technique is more complicated | Once shaped is once sintered, and technique is simpler |
| Work-ing life | About 4-6 month | About 2-3 month |
Claims (1)
1. a double boiler protective casing, is characterized in that, it is made up of inner layer sleeve and outer layer sleeve; outer layer sleeve is enclosed within the periphery of inner layer sleeve; the top of outer layer sleeve and inner layer sleeve is opening end, and bottom is blind end, and leaves closing gap between inner layer sleeve and outer layer sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520726357.8U CN205099738U (en) | 2015-09-16 | 2015-09-16 | Double -deck heater protective case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520726357.8U CN205099738U (en) | 2015-09-16 | 2015-09-16 | Double -deck heater protective case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205099738U true CN205099738U (en) | 2016-03-23 |
Family
ID=55515528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520726357.8U Expired - Fee Related CN205099738U (en) | 2015-09-16 | 2015-09-16 | Double -deck heater protective case |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205099738U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105112686A (en) * | 2015-09-16 | 2015-12-02 | 派罗特克（广西南宁）高温材料有限公司 | Double-layered heater protection sleeve and processing method |
-
2015
- 2015-09-16 CN CN201520726357.8U patent/CN205099738U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105112686A (en) * | 2015-09-16 | 2015-12-02 | 派罗特克（广西南宁）高温材料有限公司 | Double-layered heater protection sleeve and processing method |
| CN105112686B (en) * | 2015-09-16 | 2017-04-12 | 派罗特克（广西南宁）高温材料有限公司 | Double-layered heater protection sleeve and processing method |
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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: 20160323 Termination date: 20190916 |