CN105112686B - Double-layered heater protection sleeve and processing method - Google Patents
Double-layered heater protection sleeve and processing method Download PDFInfo
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- CN105112686B CN105112686B CN201510599971.7A CN201510599971A CN105112686B CN 105112686 B CN105112686 B CN 105112686B CN 201510599971 A CN201510599971 A CN 201510599971A CN 105112686 B CN105112686 B CN 105112686B
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Abstract
The invention discloses a double-layered heater protection sleeve and a processing method. The double-layered heater protection sleeve consists of an inner-layer sleeve and an outer-layer sleeve, wherein the inner-layer sleeve is sleeved by the outer-layer sleeve; the top ends of the outer-layer sleeve and the inner-layer sleeve are open, the bottom ends of the outer-layer sleeve and the inner-layer sleeve are closed, and a closed gap is reserved between the inner-layer sleeve and the outer-layer sleeve. The processing method of the double-layered heater protection sleeve comprises the following operating steps: pouring and molding the inner-layer sleeve, pouring the outer-layer sleeve by adopting the inner-layer sleeve as a pouring mold core, and finally, performing one-step sinter-molding. According to the double-layered heater protection sleeve, the thermal shock resistance of the heater protection sleeve of aluminium processing degassing equipment is greatly improved, and the service life of the sleeve is obviously prolonged.
Description
Technical field
The present invention relates in aluminum processing industry, it is used for the heater protecting accessory that degassing apparatus is equipped with, it is specifically a kind of double-deck
Heater protecting sleeve pipe and processing method.
Background technology
Lead to common heater heat treated aluminium liquid in aluminum processing industry, the degasification tank body of degassing apparatus, outside heater
Portion is generally with protection casing protection, it is to avoid heater directly contact aluminium liquid.
Traditional heater protecting sleeve pipe is processed by the way of monolayer cast, but this monolayer heater is protected
The protecting pipe usual life-span is shorter, mainly protects sleeve pipe localized crackses, the aluminum of jacket exterior occur after being frequently subjected to thermal shock
Liquid is penetrated into by crackle and cause in sleeve pipe heater short circuit and burn；Double shielding sleeve pipe is double-decker, works as outer layer sleeve
When being subjected to thermal shock and cracking, aluminium liquid is penetrated between set outer tube layer and internal layer by crackle, starts afterwards to condense, for
Inner layer sleeve will not constitute thermal shock, and set inner tube layer is also not in that crackle causes aluminising, finally extends the use longevity of sleeve pipe
Life.
The content of the invention
The technical problem to be solved is to provide a kind of double boiler protection sleeve pipe and processing method, adds this
Hot device protection sleeve pipe had both met use requirement, also improved the service life of protection sleeve pipe.
The present invention solves above-mentioned technical problem with following technical scheme：
A kind of double boiler protective case of the present invention, it is made up of inner layer sleeve and outer layer sleeve, and outer layer sleeve is enclosed within interior
The periphery of layer sleeve pipe, the top of outer layer sleeve and inner layer sleeve is opening, and bottom is blind end, and inner layer sleeve and outer layer jacket
Closing gap is left between pipe.
The processing method of double boiler protective case of the present invention, it includes following operating procedure：
1) inner layer sleeve mould and castable prepare：Ready ferrule mold is fixed on into bumper by bundling belt
On, and get out the cast raw material of sleeve pipe；
2) inner layer sleeve castable batch mixing：Routinely the cast raw material of sleeve pipe is mixed；
3) inner layer sleeve vibration casting molding：
1. bumper is opened, routinely requires to adjust vibration frequency, start slow cast, poring rate per kilogram material is many
In 5 minutes,
2. after slurry cast terminates, vibrations are continued less than 10 minutes, cast vibrations must be able to see slurry,
3. mould bundling belt is unclamped, uses doctor blade casting area；
4) inner layer sleeve standing, health preserving, the demoulding：
1. the inner layer sleeve of casting complete keeps standing and solidifying 24 hours at room temperature, starts the demoulding afterwards.
2. the inner layer sleeve health preserving after demoulding 2-3 days；
5) with inner layer sleeve as core rod, outer layer sleeve external mold is installed；
1. the inner layer sleeve that health preserving terminates is used for the core rod for making outer layer sleeve mould；
2. inner layer sleeve is fixed, the flexible graphite paper of one layer of 0.2mm is wrapped in the outer surface and outer bottom of inner layer sleeve, use
Transparent adhesive tape is fixed；
3. inspection qualified outer layer sleeve mould is enclosed within inner layer sleeve and is fixed on bumper together；
6) outer layer sleeve castable batch mixing：By step 2) operation by castable batch mixing；
7) outer layer sleeve vibration casting：By step 3) operation carry out vibration casting；
8) outer layer sleeve stands health preserving：By step 4) operation carry out standing health preserving；
9) double shielding sleeve pipe is integral sintered：Requirement is instructed to be sintered by industry.
The present invention inner layer sleeve adopt vibration casting molding, outer layer sleeve with inner layer sleeve as core rod vibration casting into
Type, and make between inner layer sleeve and outer layer sleeve, to form one layer of very thin gap, using double boiler protection pipe of the present invention,
High degree improves the performance of heater protecting sleeve pipe heat shock resistance, extends the service life of protection sleeve pipe, final to improve
The labor intensity improve production efficiency of client.
Description of the drawings
Fig. 1 is the structural representation of double shielding sleeve pipe of the present invention.
Fig. 2 is the process chart of the inventive method.
Specific embodiment
Below in conjunction with the accompanying drawings technical scheme is described further：
As shown in figure 1, double boiler protective case of the present invention, it is made up of inner layer sleeve 1 and outer layer sleeve 2, outer layer jacket
It is opening that pipe 2 is enclosed within the top of the periphery of inner layer sleeve 1, outer layer sleeve 2 and inner layer sleeve 1, and bottom is blind end, and internal layer
Gap is left between sleeve pipe and outer layer sleeve, and inner layer sleeve is connected for closed with the top of outer layer sleeve.
The work flow of double boiler protective case of the present invention as shown in Figure 2, specifically includes following operating procedure：
1) inner layer sleeve mould and castable prepare
Operator get Jing and check qualified inner layer sleeve mould, are fixed on bumper by bundling belt, and are prepared
Pour into a mould well raw material, the castable that double boiler protection sleeve pipe is used is SiC, operator are according to actually pouring fluence and material is supplied
The amount of water requirement that business provides is answered to weigh powder body material and water.
2) inner layer sleeve castable batch mixing
The powder body material for weighing up is put into into blender, is stirred a few minutes in advance, is gradually added into water, stir when adding water, always stir
The time is mixed less than 15 minutes.
3) inner layer sleeve vibration casting molding
1. bumper is opened, routinely requires to adjust vibration frequency, start slow cast, poring rate about per kilogram material
No less than 5 minutes.
2. after slurry cast terminates, then shake less than 10 minutes, cast vibrations must be able to see slurry.
3. mould bundling belt is unclamped, uses doctor blade casting area.
4) inner layer sleeve stands health preserving, the demoulding
1. the inner layer sleeve of casting complete keeps standing and solidifying at room temperature.
2. inner layer sleeve stands and can start the demoulding after solidifying 24 hours, demoulding specific purpose tool micro- loose spiral shell in order
Mother, lays down stress, is turning on mold-locked nut successively.
3. after the demoulding, bushing outer surface is wiped with cotton, such as phaneropore need to be repaired with body castable.
4. the necessary health preserving of inner layer sleeve after demoulding 2-3 days.
5) with inner layer sleeve as core rod, outer layer sleeve external mold is installed
1. the inner layer sleeve that health preserving terminates is used for the core rod for making outer layer sleeve mould.
2. inner layer sleeve is fixed, the flexible graphite paper of one layer of 0.2mm is wrapped in the outer surface and outer bottom of inner layer sleeve, use
Transparent adhesive tape is fixed.
3. inspection qualified outer layer sleeve mould is enclosed within inner layer sleeve and is fixed on bumper together.
6) outer layer sleeve castable batch mixing
With step 2) operation it is identical.
7) outer layer sleeve vibration casting
By step 3) inner layer sleeve pouring section is operated, and doctor blade casting area is used, make inner layer sleeve and outer layer
Closed connecting is formed on the top of sleeve pipe.
8) outer layer sleeve stands health preserving
With step 4) operation it is identical.
9) double shielding sleeve pipe is integral sintered
The double shielding sleeve pipe reference of casting complete《Refractory material sintering process is guided》It is sintered, it is soft in sintering process
Property graphite paper be burned off so that gap is formed between inner layer sleeve and outer layer sleeve, and for closed.
Double boiler protection sleeve pipe of the present invention protects the comparison of sleeve pipe with conventional monolayers, is shown in Table 1：
Table 1
| Project | Double shielding sleeve pipe of the present invention | Conventional monolayers protect sleeve pipe |
| Molding mode | Moulding by casting twice | One-time cast-forming |
| Shaping characteristic | Molding is once sintered twice, and technique is more complicated | One-shot forming is once sintered, and technique is simpler |
| Service life | 4-6 month or so | 2-3 month or so |
Claims (1)
1. a kind of double boiler protective case, it is characterised in that it is made up of inner layer sleeve and outer layer sleeve, and outer layer sleeve is enclosed within
The top of the periphery of inner layer sleeve, outer layer sleeve and inner layer sleeve is opening, and bottom is blind end, and inner layer sleeve and outer layer
Closing gap is left between sleeve pipe；
The processing method of the double boiler protective case includes following operating procedure：
1) inner layer sleeve mould and castable prepare：Ready ferrule mold is fixed on bumper by bundling belt, and
Get out the cast raw material of sleeve pipe；
2) inner layer sleeve castable batch mixing：Routinely the cast raw material of sleeve pipe is mixed；
3) inner layer sleeve vibration casting molding：
1. bumper is opened, routinely requires to adjust vibration frequency, start slow cast, poring rate per kilogram material is no less than 5
Minute,
2. after slurry cast terminates, vibrations are continued less than 10 minutes, cast vibrations must be able to see slurry,
3. mould bundling belt is unclamped, uses doctor blade casting area；
4) inner layer sleeve standing, health preserving, the demoulding；
1. the inner layer sleeve of casting complete keeps standing and solidifying 24 hours at room temperature, starts the demoulding afterwards, 2. after the demoulding
Inner layer sleeve health preserving 2-3 days,
5) with inner layer sleeve as core rod, outer layer sleeve external mold is installed；
1. the inner layer sleeve that health preserving terminates is used for the core rod for making outer layer sleeve mould；
2. inner layer sleeve is fixed, and the flexible graphite paper of one layer of 0.2mm is wrapped in the outer surface and outer bottom of inner layer sleeve, with transparent
Glue is fixed；
3. inspection qualified outer layer sleeve mould is enclosed within inner layer sleeve and is fixed on bumper together；
6) outer layer sleeve castable batch mixing：By step 2) operation by castable batch mixing；
7) outer layer sleeve vibration casting：By step 3) operation carry out vibration casting；
8) outer layer sleeve stands health preserving：By step 4) operation carry out standing health preserving；
9) double shielding sleeve pipe is integral sintered：Requirement is instructed to be sintered by industry.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510599971.7A CN105112686B (en) | 2015-09-16 | 2015-09-16 | Double-layered heater protection sleeve and processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510599971.7A CN105112686B (en) | 2015-09-16 | 2015-09-16 | Double-layered heater protection sleeve and processing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105112686A CN105112686A (en) | 2015-12-02 |
| CN105112686B true CN105112686B (en) | 2017-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510599971.7A Active CN105112686B (en) | 2015-09-16 | 2015-09-16 | Double-layered heater protection sleeve and processing method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201731757U (en) * | 2010-04-23 | 2011-02-02 | 福州麦特新高温材料有限公司 | Environment-friendly, energy-saving and high-efficient aluminum alloy smelting furnace |
| CN102506429A (en) * | 2011-11-07 | 2012-06-20 | 西安交通大学 | Immersed gas ceramic inner heater sleeve and preparation method thereof |
| CN203352828U (en) * | 2013-07-30 | 2013-12-18 | 丹江口弘源碳化硅有限责任公司 | Silicon carbide ceramic galvanized electric heating protective sleeve |
| CN104654783A (en) * | 2015-03-06 | 2015-05-27 | 宋振亚 | Upper part immersed heating and melting heat-preserving furnace |
| CN205099738U (en) * | 2015-09-16 | 2016-03-23 | 派罗特克（广西南宁）高温材料有限公司 | Double -deck heater protective case |
-
2015
- 2015-09-16 CN CN201510599971.7A patent/CN105112686B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201731757U (en) * | 2010-04-23 | 2011-02-02 | 福州麦特新高温材料有限公司 | Environment-friendly, energy-saving and high-efficient aluminum alloy smelting furnace |
| CN102506429A (en) * | 2011-11-07 | 2012-06-20 | 西安交通大学 | Immersed gas ceramic inner heater sleeve and preparation method thereof |
| CN203352828U (en) * | 2013-07-30 | 2013-12-18 | 丹江口弘源碳化硅有限责任公司 | Silicon carbide ceramic galvanized electric heating protective sleeve |
| CN104654783A (en) * | 2015-03-06 | 2015-05-27 | 宋振亚 | Upper part immersed heating and melting heat-preserving furnace |
| CN205099738U (en) * | 2015-09-16 | 2016-03-23 | 派罗特克（广西南宁）高温材料有限公司 | Double -deck heater protective case |
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| Publication number | Publication date |
|---|---|
| CN105112686A (en) | 2015-12-02 |
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