CN101797633B - Electric holding furnace for aluminum alloy die-casting - Google Patents
Electric holding furnace for aluminum alloy die-casting Download PDFInfo
- Publication number
- CN101797633B CN101797633B CN2010101411366A CN201010141136A CN101797633B CN 101797633 B CN101797633 B CN 101797633B CN 2010101411366 A CN2010101411366 A CN 2010101411366A CN 201010141136 A CN201010141136 A CN 201010141136A CN 101797633 B CN101797633 B CN 101797633B
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- Prior art keywords
- heater
- electric heater
- electric
- casting
- holding furnace
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- 238000004512 die casting Methods 0.000 title claims abstract description 16
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 15
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 25
- 229910052782 aluminium Inorganic materials 0.000 abstract description 25
- 239000007788 liquid Substances 0.000 abstract description 23
- 239000002699 waste material Substances 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 238000007254 oxidation reaction Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 4
- 230000003647 oxidation Effects 0.000 abstract description 4
- 238000004321 preservation Methods 0.000 abstract 1
- 239000004411 aluminium Substances 0.000 description 20
- 238000007789 sealing Methods 0.000 description 18
- 238000009413 insulation Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 230000003442 weekly effect Effects 0.000 description 1
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Abstract
The invention discloses an electric holding furnace for aluminum alloy die-casting, which comprises a first electric heater arranged on the side wall of a furnace body, the external surface of the first electric heater is coated with a tapered first plugging sleeve, the external surface of the first plugging sleeve is coated with a tapered end plug, and the external surface of the end plug is coated with a tapered second plugging sleeve. Because the e electric heater is arranged on the side wall of the furnace body, the electric heater can directly extend to the aluminum liquid, the waste of thermal energy in the heat conduction process in the prior art is avoided, and the heat preservation effect is greatly improved. In addition, because the electric heater is arranged on the side wall of the furnace body, a furnace lid can completely seal the furnace body, the oxidation of aluminum liquid in the furnace is greatly reduced and the waste of materials is effectively avoided.
Description
Technical field
The present invention relates to a kind of electric holding furnace for aluminum alloy die-casting.
Background technology
Current, what electric holding furnace for aluminum alloy die-casting adopted is to go up the radiant type electric holding furnace, its mode of heating is that moist closet top bell heating resistance wire conducts heat to aluminium liquid to come aluminium liquid in the stove is realized insulation by the mode of radiation, because the characteristic of itself is limit, there are following several open defects:
1) adopt on the former resistance wire radiant type holding furnace because of accomplishing to be incubated the sealing fully of bell, air enters in the stove in heating process, therefore the aluminium liquid of chamber surface oxidization burning loss very easily in 900-1000 ℃ environment heats up, produce a large amount of aluminium slags (must clear up aluminium liquid surface scum weekly), otherwise equipment can't move normally and very easily damage;
2) because last radioactive mode of heating is that the heat that resistance wire sends conducts to aluminium liquid by radiation mode, and the holding furnace thermal efficiency is low, as untimely cleaning aluminium liquid oxide on surface, its heat conduction is obstructed even more serious.If therefore plant maintenance work is done badly, energy consumption more can significantly rise;
3) the aluminium liquid upper and lower temperature difference in the holding furnace is big.Because of last radiant type holding furnace temperature of aluminum liquid is to rely on the intensification chamber resistive heater evolution of heat of bell to conduct to aluminium liquid to be maintained, certainly will cause the upper and lower temperature difference very big (can reach 20-30 ℃ after tested) of aluminium liquid in the holding furnace like this, have a negative impact to temperature of aluminum liquid in the die casting production process is stable, thereby can't satisfy the technological requirement that die casting is produced.
Problems such as in sum, existing electric holding furnace for aluminum alloy die-casting also exists heat insulation effect poor, and energy waste is serious.
Summary of the invention
The purpose of this invention is to provide a kind of electricity insulation that is used for aluminium alloy compression casting of high insulating effect, use this electric holding furnace can greatly reduce the oxidation of aluminium liquid.
In order to solve the problems of the technologies described above, the present invention is solved by following technical proposals:
Electric holding furnace for aluminum alloy die-casting, comprise first electric heater, described first electric heater is installed on the sidewall of the furnace body, the outer surface of described first electric heater is coated with the first tapered stifled cover, the outer surface of the described first stifled cover is arranged with tapered plug, and the outer surface of described plug is coated with the second tapered stifled cover.
In the technique scheme, described first, second stifled cover all adopts alumina silicate to make, and plug adopts graphite to make.
In the technique scheme, the tapered end of described plug is provided with fixed mount, and described fixed mount comprises the briquetting that is fixed in the plug end, and the sidewall of described briquetting is provided with elastic support, and the described elastic support other end is fixed on the body of heater.
In the technique scheme, the end of described elastic support also is provided with compressing tablet, and the other end of compressing tablet is connected with pillar, and pillar is installed on the lateral wall of body of heater.
The present invention compared with prior art has following beneficial effect:
1) the present invention is owing to be arranged on electric heater on the side wall of furnace, and electric heater can directly stretch in the aluminium liquid like this, has avoided the waste of heat energy in the heat transfer process in the prior art.Improved heat insulation effect greatly.Because electric heater is arranged on the side wall of furnace, can realize the fully sealing of bell in addition, greatly reduce the oxidation in body of heater of aluminium liquid, avoid the waste of material effectively body of heater.
2) the present invention is coated with stifled cover at the outer surface of electric heater, and stifled cover outer surface is coated with plug, and this structure can realize the excellent sealing of electric heater, thereby can guarantee that the present invention has very long service life.
Description of drawings
Fig. 1 is the electric holding furnace for aluminum alloy die-casting cutaway view.
Fig. 2 is the vertical view of electric holding furnace for aluminum alloy die-casting shown in Figure 1.
Fig. 3 be among Fig. 1 A-A to cutaway view.
Fig. 4 is an I place enlarged drawing among Fig. 3.
The specific embodiment
Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.
Referring to Fig. 1～Fig. 4, electric holding furnace for aluminum alloy die-casting, comprise that the furnace wall that body of heater 1, described body of heater 1 are made by 4 layers of different materials makes, the top of described body of heater 1 is provided with bell 2, the sidewall of described body of heater 1 is provided with first electric heater 3, described first electric heater 3 is the impregnated electric heater, and the heater of this first electric heater 3 is one and becomes columniform cylinder 30.Stretch in this cylinder 30 in the aluminium liquid in the electric holding furnace.
Described bell 2 is provided with second electric heater 5, the present invention is provided with second electric heater 5 on bell 2 purpose is, when first electric heater 3 that is arranged on body of heater 1 sidewall (also being the impregnated electric heater) damages, can enable second electric heater 5 that is arranged on the bell 2 at once, prevent damage because of first electric heater 3, cause the temperature of aluminum liquid of whole body of heater 1 to reduce, make it can not enter follow-up production.
Because first electric heater 3 is directly stretched in the aluminium liquid, so just avoided the waste of heat energy in the heat transfer process in the prior art, improved heat insulation effect greatly.Because electric heater is arranged on the side wall of furnace, can realize the sealing fully of 2 pairs of bodies of heater 1 of bell in addition, greatly reduce the oxidation in body of heater 1 of aluminium liquid, avoid the waste of material effectively.Its experimental data sees Table 1:
Table 1
For the present invention, realize first electric heater 3 sealing be vital, good sealing can guarantee that aluminium liquid does not ooze out from first electric heater 3.The present invention also is provided with sealing device at the outer surface of first electric heater 3 for this reason, described sealing device comprises the first tapered stifled cover 9 that is coated on first electric heater, 3 outer surfaces, the outer surface of the described first stifled cover 9 is arranged with tapered plug 11, and the outer surface of described plug 11 is coated with the second tapered stifled cover 13.Described first, second stifled cover 9,13 all adopts brick acid aluminium to make, and plug 11 then adopts graphite to make.
Be understood that, the sealing device of the outer surface of first electric heater 3 can be the sealing device of other form, but comparatively speaking, then superior many of sealing device of the present invention, because of its first stifled cover 9, plug 11, the second stifled cover 13 is taper, when the first stifled cover 9, plug 11, the gap appears arbitrarily between the two in the second stifled cover 13, and the outer surface of the second stifled cover 13 and body of heater 1 are when the gap occurring, can make the first stifled cover 9, plug 11, the second stifled cover 13 is towards body of heater 1 inner moving, make the gap be eliminated, thereby make first electric heater 3 of the present invention be able to good sealing always, avoid aluminium liquid to flow out, prolonged service life of the present invention greatly from first electric heater, 3 outer surfaces.
The tapered end of described plug 11 is provided with fixed mount 7, described fixed mount 7 comprises the briquetting 70 that is fixed in plug 11 ends, the sidewall of described briquetting 70 is provided with elastic support 72, described elastic support 72 is perpendicular to briquetting 70, the end of described elastic support 72 also is provided with compressing tablet 74, the other end of compressing tablet 74 is connected with pillar 76 by bolt, and pillar 76 is installed on the lateral wall of body of heater 1.
Convention, electric holding furnace in use for some time, work such as need overhaul, during maintenance, electric holding furnace need cut off the power supply and carry out at normal temperatures, and inevitably, sealing device can expand with heat and contract with cold, and the expand with heat and contract with cold consequence that causes of sealing device is that the gap appears in the outer surface and the body of heater 1 of sealing device, and aluminium liquid goes out to flow out from this gap.The end of plug 11 is provided with fixed mount 7, and this problem is avoided.It is as follows to trace it to its cause: when the gap appears in the outer surface of sealing device and body of heater 1, under the elastic reaction of compressing tablet, support is drawn close to plug 11 directions, thereby make briquetting promote plug 11 towards body of heater 1 inner moving, because plug 11 is tapered, thereby make the outer surface of sealing device and the gap that body of heater 1 occurs be eliminated once more, thereby realize sealing reliably.
Claims (4)
1. electric holding furnace for aluminum alloy die-casting, comprise body of heater (1), first electric heater (3), the top of described body of heater (1) is provided with bell (2), it is characterized in that, described first electric heater (3) is arranged on the sidewall of body of heater (1), the outer surface of described first electric heater (3) is coated with the first tapered stifled cover (9), and the outer surface of the described first stifled cover (9) is arranged with tapered plug (11), and the outer surface of described plug (11) is coated with the second tapered stifled cover (13).
2. electric holding furnace for aluminum alloy die-casting as claimed in claim 1 is characterized in that, described first, second stifled cover (9,13) all adopts alumina silicate to make, and described plug (11) adopts graphite to make.
3. electric holding furnace for aluminum alloy die-casting as claimed in claim 1 or 2, it is characterized in that, the tapered end of described plug (11) is provided with fixed mount (7), described fixed mount (7) comprises the briquetting (70) that is fixed in plug (11) end, the sidewall of described briquetting (70) is provided with elastic support (72), and described elasticity is propped up (72) frame other end and is fixed on the body of heater (1).
4. electric holding furnace for aluminum alloy die-casting as claimed in claim 3, it is characterized in that, the end of described elastic support (72) also is provided with compressing tablet (74), and the other end of compressing tablet (74) is connected with pillar (76), and pillar (76) is installed on the lateral wall of body of heater (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101411366A CN101797633B (en) | 2010-04-06 | 2010-04-06 | Electric holding furnace for aluminum alloy die-casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101411366A CN101797633B (en) | 2010-04-06 | 2010-04-06 | Electric holding furnace for aluminum alloy die-casting |
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| Publication Number | Publication Date |
|---|---|
| CN101797633A CN101797633A (en) | 2010-08-11 |
| CN101797633B true CN101797633B (en) | 2011-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101411366A Expired - Fee Related CN101797633B (en) | 2010-04-06 | 2010-04-06 | Electric holding furnace for aluminum alloy die-casting |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102503453B (en) * | 2011-10-15 | 2013-06-12 | 杭州中亚新材料科技有限公司 | Composite aluminum silicate fiber blockage sleeve and manufacturing method thereof |
| CN103411433B (en) * | 2013-09-06 | 2016-03-09 | 重庆东热工业炉有限公司 | Bottom immersion heating and thermal insulation stove |
| CN103411434B (en) * | 2013-09-06 | 2015-07-08 | 重庆东热工业炉有限公司 | Lower immersed type heating holding furnace |
| CN108759468A (en) * | 2018-07-27 | 2018-11-06 | 宁波兴展旺节能科技有限公司 | Transverse-plug type electromagnetic induction heating stick holding furnace |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1079178A (en) * | 1992-05-23 | 1993-12-08 | 山东省新泰市铜材研究所 | Continuous casting fusing, holding furnace heating means and electric heater |
| CN2911577Y (en) * | 2006-06-27 | 2007-06-13 | 上海埃鲁秘工业炉制造有限公司 | Electrical warming aluminum alloy furnace |
| CN101052487A (en) * | 2004-11-04 | 2007-10-10 | 韩国机械研究院 | An apparatus for horizontal continuous casting of magnesium alloys plate and manufacturing method thereof |
-
2010
- 2010-04-06 CN CN2010101411366A patent/CN101797633B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1079178A (en) * | 1992-05-23 | 1993-12-08 | 山东省新泰市铜材研究所 | Continuous casting fusing, holding furnace heating means and electric heater |
| CN101052487A (en) * | 2004-11-04 | 2007-10-10 | 韩国机械研究院 | An apparatus for horizontal continuous casting of magnesium alloys plate and manufacturing method thereof |
| CN2911577Y (en) * | 2006-06-27 | 2007-06-13 | 上海埃鲁秘工业炉制造有限公司 | Electrical warming aluminum alloy furnace |
Non-Patent Citations (1)
| Title |
|---|
| 覃恩宁等.对压铸机用保温炉选用的几点看法.《机械设计与制造工程》.1999,第28卷(第3期),第59-60页. * |
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| CN101797633A (en) | 2010-08-11 |
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Assignee: NINGBO IKD AUTO PRODUCTS Co.,Ltd. Assignor: Ningbo Jiangbei Xiecheng Industrial Furnace Manufacturing Co.,Ltd. Contract record no.: 2011330001468 Denomination of invention: Electric holding furnace for aluminum alloy die-casting Granted publication date: 20110928 License type: Exclusive License Open date: 20100811 Record date: 20111221 |
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Owner name: NINGBO IKD AUTO PRODUCTS CO., LTD. Free format text: FORMER OWNER: NINGBO JIANGBEI XIECHENG INDUSTRIAL FURNACE MANUFACTURING CO., LTD. Effective date: 20120131 |
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Effective date of registration: 20120131 Address after: 315033, No. 588, Jin Shan Road, Jiangbei District, Zhejiang, Ningbo, 4 Patentee after: NINGBO IKD AUTO PRODUCTS Co.,Ltd. Address before: 315033, No. 588, Jin Shan Road, Jiangbei District, Zhejiang, Ningbo, 4 Patentee before: Ningbo Jiangbei Xiecheng Industrial Furnace Manufacturing Co.,Ltd. |
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Owner name: NINGBO IKD DIE CASTING CO. LTD. Free format text: FORMER OWNER: NINGBO IKD AUTO PRODUCTS CO., LTD. Effective date: 20121101 |
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Effective date of registration: 20121101 Address after: 315033, No. 588, Jin Shan Road, Jiangbei District, Zhejiang, Ningbo, 4 Patentee after: NINGBO IKD DIE CASTING Co.,Ltd. Address before: 315033, No. 588, Jin Shan Road, Jiangbei District, Zhejiang, Ningbo, 4 Patentee before: NINGBO IKD AUTO PRODUCTS Co.,Ltd. |
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Owner name: NINGBO JIANGBEI XIECHENG INDUSTRIAL FURNACE MANUFA Free format text: FORMER OWNER: NINGBO IKD DIE CASTING CO. LTD. Effective date: 20150630 |
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Effective date of registration: 20150630 Address after: 315033 No. 588 Jin Shan Road, Jiangbei District, Zhejiang, Ningbo Patentee after: Ningbo Jiangbei Xiecheng Industrial Furnace Manufacturing Co.,Ltd. Address before: 315033, No. 588, Jin Shan Road, Jiangbei District, Zhejiang, Ningbo, 4 Patentee before: NINGBO IKD DIE CASTING Co.,Ltd. |
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