CN203292488U - Rubber discharging and degreasing device of powder metallurgy vacuum sintering furnace - Google Patents
Rubber discharging and degreasing device of powder metallurgy vacuum sintering furnace Download PDFInfo
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- CN203292488U CN203292488U CN2013203407237U CN201320340723U CN203292488U CN 203292488 U CN203292488 U CN 203292488U CN 2013203407237 U CN2013203407237 U CN 2013203407237U CN 201320340723 U CN201320340723 U CN 201320340723U CN 203292488 U CN203292488 U CN 203292488U
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- sintering furnace
- binder removal
- oil storage
- powder metallurgy
- storage tank
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- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The utility model relates to a rubber discharging and degreasing device of a powder metallurgy vacuum sintering furnace. The rubber discharging and degreasing device comprises the sintering furnace which is communicated with at least one oil storage tank through an air and rubber discharging pipeline, and the two oil storage tanks are communicated through an oil pipe and communicated with a vacuum pump through air and rubber discharging pipelines. The bottom ports of the air and rubber discharging pipelines are arranged below the waste oil liquid levels in the oil storage tanks. The rubber discharging and degreasing device of the powder metallurgy vacuum sintering furnace is simple in operation, capable of finishing sintering and degreasing at a time, short in sintering time, low in sintering cost, capable of reusing waste, friendly to environment, compact in structure and capable of improving the turnover speed of products.
Description
Technical field
The utility model relates to a kind of powder metallurgy vacuum sintering furnace binder removal degreasing equipment.
Background technology
The degreasing of powder metallurgy vacuum sintering furnace binder removal is a key technology and means.At present, domestic, the world does not have unified equipment and method, and the overwhelming majority takes double sintering and degreasing, and cost is high, and sintering time is long, and the product percent defective is high.
Chinese patent 200610136879.8 discloses a kind of gradient negative pressure hot defatting technology for powder injecting formation, belong to powder metallurgical technique, it is to need the degreasing blank be placed in a closed container and be embedded in the filler powder that thermal conductivity is good, then this is equipped with to the container that needs the degreasing blank and carries out the integral body heating, to the fusion temperature of the low melting point constituent element of binding agent in blank and start to gasify between decomposition temperature, in the filler powder bottom, container cavity is vacuumized again, and form vacuum gradient by the air inlet gap gas flow of adjusting container top, realize degreasing.Described powder filler is metal dust, ceramic powders or the mixture of the two, and the powder size scope is-32 orders～+ 325 orders; The adjustable air inlet gap of gas flow is set at described closed container top.Have the fast and characteristics thoroughly of the binding agent of removing low melting point constituent element, though be conducive to by the full dense sintering product of injection molding process processing and manufacturing and large wall thickness product, can overcome in solvent degreasing the condition of work that solvent toxicity is brought and worsen and the reuse environmental issue, but production cost is high, efficiency is low.
Summary of the invention
Technical problem to be solved in the utility model is, overcomes the above-mentioned defect that prior art exists, and provides a kind of
Powder metallurgy product sintering time in vacuum drying oven is short, disposablely advances the stove sintering, and cost is low, can utilize the powder metallurgy vacuum sintering furnace binder removal degreasing equipment of refuse.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of powder metallurgy vacuum sintering furnace binder removal degreasing equipment, comprise sintering furnace, described sintering furnace is communicated with at least one oil storage tank by exhaust binder removal pipeline, between described two oil storage tanks, by oil pipe, be communicated with, and be communicated with vavuum pump by exhaust binder removal pipeline, the bottom nozzle of exhaust binder removal pipeline all is placed in the waste oil liquid level below that is stored in oil storage tank.
Further, the number of described oil storage tank is preferred two.
Further, preferred ten meters of the length of described exhaust binder removal pipeline.
Further, the preferred height of the volume of described oil storage tank is 1 meter, and diameter is 0.14 meter.
Further, the bending part of described exhaust binder removal pipeline is apart from the oil storage tank bottom preferred 1.5 meters.
Powder metallurgy vacuum sintering furnace binder removal degreasing process comprises the following steps:
(1) before the stove sintering, prepare: will need the degreasing blank to be placed in sintering furnace, at least one oil storage tank, pour into equivalent waste oil, and good seal, guarantee that oil storage tank is air tight, so that extracting vacuum;
(2) sintering furnace application of vacuum: by vavuum pump by the ready sintering furnace of step (1) and oil storage tank application of vacuum;
(3) sintering furnace starts: by the vacuum sintering furnace energising that step (2) is handled well, vacuum sintering furnace is started working, and the temperature in sintering furnace rises, degreasing blank high-temperature gasification, gasification fat is in the binder removal pipeline flows into oil storage tank, and while flowing through oil storage tank, the degreasing foreign matter is adsorbed by waste oil;
(4) sintering furnace cooling processing: vacuum sintering furnace quits work, cooling after, emit foreign matter and the waste oil in two oil storage tanks absorption vacuum drying ovens, drained;
Realize degreasing.
Further, described waste oil is waste oil, machine oil, vacuum oil.
Further, the amount of described waste oil is 15-25L (preferred 20L).
Compared with prior art, the powder metallurgy vacuum sintering furnace binder removal degreasing process of the utility model, simple to operate, utilize waste oil to do that carrier is disposable in vacuum sintering furnace completes sintering, degreasing, can shorten the sintering time of powder metallurgy product in vacuum sintering furnace, the sintering cost is low, and twice laid, and the most cheap " waste oil " can reduce costs 70%; The powder metallurgy vacuum sintering furnace binder removal degreasing equipment of the utility model, compact conformation, by extending the Vacuum fire grate plastic pipe, increase oil storage tank, the foreign matter that utilizes " waste oil ", vacuum oil, machine oil adhering powder metallurgic product to discharge in the vacuum drying oven sintering, the rate flow of product is accelerated, and can effectively extend the service life of sintering furnace and vavuum pump.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is flow chart of the present utility model.
The specific embodiment
The utility model will be further described below in conjunction with drawings and Examples.
with reference to accompanying drawing, present embodiment is: a kind of powder metallurgy vacuum sintering furnace binder removal degreasing equipment: comprise sintering furnace 1, described sintering furnace 1 is communicated with oil storage tank I 2-1 by exhaust binder removal pipeline I 3-1, the bottom nozzle of exhaust binder removal pipeline I 3-1 is placed in " waste oil " liquid level below that is stored in I 2-1 in oil storage tank, between described oil storage tank I 2-1 and oil storage tank II 2-2, by pipeline 5, be communicated with, oil storage tank II 2-2 is communicated with vavuum pump 4 by exhaust binder removal pipeline II 3-2, the bottom nozzle of exhaust binder removal pipeline II 3-2 is placed in " waste oil " liquid level below that is stored in oil storage tank II 2-2.
The length of described exhaust binder removal pipeline I 3-1 and exhaust binder removal pipeline II 3-2 is ten meters.
It is 1 meter that the volume of the interior I 2-1 of described oil storage tank and oil storage tank II 2-2 is height, and diameter is 0.14 meter.
1.5 meters apart from the oil storage tank bottom of the bending parts of described exhaust binder removal pipeline.
Claims (5)
1. powder metallurgy vacuum sintering furnace binder removal degreasing equipment, comprise sintering furnace, it is characterized in that: described sintering furnace is communicated with at least one oil storage tank by exhaust binder removal pipeline, between described two oil storage tanks, by oil pipe, be communicated with, and be communicated with vavuum pump by exhaust binder removal pipeline, the bottom nozzle of exhaust binder removal pipeline all is placed in the waste oil liquid level below that is stored in oil storage tank.
2. powder metallurgy vacuum sintering furnace binder removal degreasing equipment according to claim 1, is characterized in that, the number of described oil storage tank is two.
3. powder metallurgy vacuum sintering furnace binder removal degreasing equipment according to claim 1, is characterized in that, the length of described exhaust binder removal pipeline is ten meters.
4. powder metallurgy vacuum sintering furnace binder removal degreasing equipment according to claim 1, is characterized in that, the volume of described oil storage tank is that height is 1 meter, and diameter is 0.14 meter.
5. powder metallurgy vacuum sintering furnace binder removal degreasing equipment according to claim 1, is characterized in that, 1.5 meters apart from the oil storage tank bottom of the bending parts of described exhaust binder removal pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203407237U CN203292488U (en) | 2013-06-14 | 2013-06-14 | Rubber discharging and degreasing device of powder metallurgy vacuum sintering furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203407237U CN203292488U (en) | 2013-06-14 | 2013-06-14 | Rubber discharging and degreasing device of powder metallurgy vacuum sintering furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203292488U true CN203292488U (en) | 2013-11-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203407237U Expired - Fee Related CN203292488U (en) | 2013-06-14 | 2013-06-14 | Rubber discharging and degreasing device of powder metallurgy vacuum sintering furnace |
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| CN (1) | CN203292488U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103331447A (en) * | 2013-06-14 | 2013-10-02 | 蓝山县金山川粉末冶金有限公司 | Gel discharging and degreasing technology and equipment for powder metallurgical vacuum sintering furnace |
-
2013
- 2013-06-14 CN CN2013203407237U patent/CN203292488U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103331447A (en) * | 2013-06-14 | 2013-10-02 | 蓝山县金山川粉末冶金有限公司 | Gel discharging and degreasing technology and equipment for powder metallurgical vacuum sintering furnace |
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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: 20131120 Termination date: 20160614 |
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| CF01 | Termination of patent right due to non-payment of annual fee |