CN103557703A - Bell-jar type sintering tank protecting device - Google Patents
Bell-jar type sintering tank protecting device Download PDFInfo
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- CN103557703A CN103557703A CN201310533123.7A CN201310533123A CN103557703A CN 103557703 A CN103557703 A CN 103557703A CN 201310533123 A CN201310533123 A CN 201310533123A CN 103557703 A CN103557703 A CN 103557703A
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- sintering
- tank
- bell
- sinter box
- jar
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- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
The invention discloses a bell-jar type sintering tank protecting device, and relates to bell-jar type sintering equipment. The device comprises a base (1), a sintering tank (2) and a graphite disc (3), wherein the graphite disc (3) is arranged in the sintering tank (2), the sintering tank (2) is provided with welding points (6), the edge of the base (1) is provided with a water tank (7), the bottom of the sintering tank (1) is provided with a cushion plate (4), the cross section of the cushion plate (4) is in an inverted U shape, the cushion plate (4) is arranged in the water tank (7), and sealing water (5) is arranged between the cushion plate (4) and the water tank (7) to realize the buffering function. The device has the advantages that by utilizing the compression and expansion of the sealing water (5), the phenomena of the cracking of the welding points (6), the lengthening of the jar body and the like due to the high-temperature expansion or low-temperature shrinkage of the sintering tank (2) are avoided, and the phenomena of the blocking of the resetting of a sintering transverse beam, the oxidization of products, the sintering of waste products and the like, caused by the gas leakage of the sintering tank (2) and the lengthening of the sintering tank body are avoided; the phenomenon of pressure not being applied to parts during sintering is avoided; meanwhile, multiple potential safety hazards are omitted.
Description
Technical field
The present invention relates to a kind of bell-jar sinter box equipment, relate in particular to a kind of bell jar sinter box protector.
Background technology
Sintering is one of most important operation during sintered metal friction material is produced, in sintering process, material is by closely knit, and the conventional equipment of sintered friction material is clock hood type furnace, the friction parts being sintered is placed on base with one pile or several piles, the sintering graphite dish of transmission of pressure is piled up on sintered part, then cover upper sinter box (protective cover), cover above heats bell jar again, these two covers are lowered in sealing pond in the effect of deadweight, logical protective gas (explosive), heat-agglomerating is carried out in energising, conventionally sintering temperature is at 800～1040 ℃, carry out after the high temperature sintering of 2～3 hours, heating bell jar being hung and being removed, cover again upper cooling dome pressurization water-cooled, whole sintering process sinter box plays the effect of protection sintered part(s), it need bear the effect of stress of chilling under high temperature and high temperature, the quality of sinter box and life-span directly have influence on quality and the production cost of product.
Now widely used bell-jar sinter box, by the bottom of case head, case and casing form, casing is to be formed by a plurality of annular steel ring Combination Welding, at the bottom of casing and case head, case, is welded to form bell-jar sinter box.Bell-jar sinter box is in sintering process; be subject to the effect of high temperature and own wt; can constantly in use procedure, there is crack in weld seam; casing also can constantly elongate; cause sinter box to leak air and the reset of the long obstruction sintering of sintering casing crossbeam, during sintering, pressure applies less than the phenomenon on part, causes the generation of product oxidation and sintering waste product; because sintering protective gas is inflammable, explosive, so give to produce, also bring a lot of potential safety hazards.
Summary of the invention
For above technical problem, the invention provides a kind of bell jar sinter box protector, be mainly the problem of elongating in order to solve bell-jar sinter box bead crack and casing, in the life-span of improving sinter box, providing a kind of is simple, the safe and reliable protector of structure and manufacturing process.
The present invention is achieved by the following technical programs:
A sinter box protector, comprises base, sinter box and at inner graphite plate, has pad on sinter box, and described base edge has tank; Cross section is arranged at described sinter box bottom is the backing plate of inverted U; Backing plate is put into tank, between have sealing water as buffering.
Beneficial effect of the present invention is: because sinter box is to be welded with a plurality of parts, the present invention is by the design of sealing water, when having sinter box to have external force to exist, sealing water in tank can be subject to the Na of doing of the power larger than sinter box gravity, the volume that seals water is further dwindled, portion of energy is converted into interior energy, when sinter box is during because of high-temperature expansion, can further to sealing water, further compress, prevented that sinter box from occurring the phenomenons such as crack because of expansion pad, when sinter box is during because of low-temperature shrink, the volumetric expansion of sealing water, the interior of storage can be converted into potential energy, backing plate is up pushed away, avoided sinter box to answer the effect of self gravitation, by phenomenons such as sinter box elongation and pad crackings.Avoid sinter box to leak air and the reset of the long obstruction sintering of sintering casing crossbeam, produced the phenomenons such as product oxidation and sintering waste product; While having eliminated sintering, pressure applies less than the phenomenon on part; Many potential safety hazards have been eliminated simultaneously.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present invention.
Wherein: 1-base, 2-sinter box, 3-graphite plate, 4-backing plate, 5-seals water, 6-pad, 7-tank.
The specific embodiment
Below in conjunction with specific embodiment, technical scheme of the present invention is elaborated:
A kind of bell jar sinter box protector as shown in Figure 1, comprise base 1, sinter box 2 and at the graphite plate 3 of sinter box 2 inside, sinter box 2 has shell head, housing and shell back welding contact 6 to be welded, cross section is arranged at sinter box bottom is the backing plate 4 of inverted U, on base 1 and backing plate correspondence position, there is tank 7, backing plate 4 is placed in tank 7, and between have sealing water 5 as buffering.
During work, first sinter box 2 is applied to certain pressure, and immobilize, when sinter box 2 is subject to the effect of external force, and power transmission is to backing plate 4, and then sealing water is compressed, and by power conversion, is interior can storage.
Then enter people's heat-agglomerating stage, at this moment can answer high temperature action by sinter box 2, start to expand, this is that sealing water can further compress, and has avoided sinter box 2 because expanding, to produce crack in fixed position; When sintering finishes to lower the temperature, sinter box 2 is answered temperature to reduce and is produced shrinkage phenomenon, this is that sealing water 5 starts to expand, and by the interior potential energy that can be converted into, has avoided sinter box 2 because of the effect of self bottom weight, and produce, elongates and the phenomenon such as pad cracking.
Above-described embodiment is only explanation technical conceive of the present invention and feature; its objective is to allow and be familiar with these those skilled in the art and can understand content of the present invention and implement according to this; can not limit the scope of the invention with this; all equivalents or modification that according to the present invention, spirit essence has been done, all should contain in protection scope of the present invention.
Claims (1)
1. a bell-jar sinter box protector, comprises base (1), sinter box (2) and in inner graphite plate (3), has pad (6) on sinter box (2), it is characterized in that: there is tank (7) at described base (1) edge; Cross section is arranged at described sinter box (1) bottom is the backing plate (4) of inverted U; Backing plate (4) is put into tank (7), between have sealing water (5) as buffering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310533123.7A CN103557703B (en) | 2013-10-31 | 2013-10-31 | A kind of bell-jar sinter box protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310533123.7A CN103557703B (en) | 2013-10-31 | 2013-10-31 | A kind of bell-jar sinter box protector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103557703A true CN103557703A (en) | 2014-02-05 |
| CN103557703B CN103557703B (en) | 2016-02-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310533123.7A Active CN103557703B (en) | 2013-10-31 | 2013-10-31 | A kind of bell-jar sinter box protector |
Country Status (1)
| Country | Link |
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| CN (1) | CN103557703B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112475299A (en) * | 2020-10-26 | 2021-03-12 | 山东菏泽德通新材料科技有限公司 | Pressurized sintering process of powder metallurgy brake pad friction body assembly |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5578264A (en) * | 1994-12-21 | 1996-11-26 | Coble; Gary L. | Cast refractory base segments and modular fiber seal system for plural-stack annealing furnace |
| CN2459602Y (en) * | 2001-01-16 | 2001-11-14 | 无锡市南洋工业炉有限公司 | Wave shaped inner bell for bell-type furnace |
| CN201737987U (en) * | 2010-06-13 | 2011-02-09 | 宝山钢铁股份有限公司 | Buffer hanging leg of inner cover of cover-type furnace |
| CN201762394U (en) * | 2010-08-19 | 2011-03-16 | 湖南常摩制造有限公司 | Heat shaping bell jar furnace of friction plate |
| US20120312733A1 (en) * | 2009-11-12 | 2012-12-13 | Donaldson Company, Inc. | Liquid filter construction for freezing environments |
-
2013
- 2013-10-31 CN CN201310533123.7A patent/CN103557703B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5578264A (en) * | 1994-12-21 | 1996-11-26 | Coble; Gary L. | Cast refractory base segments and modular fiber seal system for plural-stack annealing furnace |
| CN2459602Y (en) * | 2001-01-16 | 2001-11-14 | 无锡市南洋工业炉有限公司 | Wave shaped inner bell for bell-type furnace |
| US20120312733A1 (en) * | 2009-11-12 | 2012-12-13 | Donaldson Company, Inc. | Liquid filter construction for freezing environments |
| CN201737987U (en) * | 2010-06-13 | 2011-02-09 | 宝山钢铁股份有限公司 | Buffer hanging leg of inner cover of cover-type furnace |
| CN201762394U (en) * | 2010-08-19 | 2011-03-16 | 湖南常摩制造有限公司 | Heat shaping bell jar furnace of friction plate |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112475299A (en) * | 2020-10-26 | 2021-03-12 | 山东菏泽德通新材料科技有限公司 | Pressurized sintering process of powder metallurgy brake pad friction body assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103557703B (en) | 2016-02-17 |
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