CN201429317Y - Hard alloy degumming and vacuum sintering integral furnace - Google Patents
Hard alloy degumming and vacuum sintering integral furnace Download PDFInfo
- Publication number
- CN201429317Y CN201429317Y CN2009200649878U CN200920064987U CN201429317Y CN 201429317 Y CN201429317 Y CN 201429317Y CN 2009200649878 U CN2009200649878 U CN 2009200649878U CN 200920064987 U CN200920064987 U CN 200920064987U CN 201429317 Y CN201429317 Y CN 201429317Y
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- sintering
- furnace shell
- incubator
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- insulation
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Abstract
The utility model discloses a hard alloy degumming and vacuum sintering integral furnace, comprising a furnace body, an insulation can, a sintering room, a gum collecting tank, a gum pump and a vacuumpump, wherein the furnace body is composed of a support frame and a furnace shell; the insulation can is installed in the inner cavity of the furnace shell; the sintering room is installed in the insulation can, and an electrothermal body and an insulation layer are installed between the sintering room and the insulation can; a cooling water pipe is installed between the furnace shell and the insulation can; the bottom part of the furnace shell is provided with a gum outlet pipe connected with the gum collecting tank; the gum collecting tank is connected with the gum pump; and the furnace shell is also provided with a thermocouple positioning hole and a vacuum pumping port. The hard alloy degumming and vacuum sintering integral furnace has the advantages of reasonable process design, simple device structure, convenient operation, integrating degumming and vacuum sintering, can effectively increase the sintering quality of products, shortens the sintering cycle, saves energy, effectively reduces the cost of product sintering, has wide range of products capable of being sintered, low device cost and safe production process, and can replace the existing hard alloy sintering device.
Description
Technical field
The utility model relates to the sintering cemented carbide equipment technical field, is meant a kind of carbide alloy vacuum-sintering all-in-one oven that comes unstuck especially.
Background technology
Traditional hard alloy vacuum sintering furnace, have simple to operate, equipment manufacturing cost is low, and technology easily is provided with, and sintering time is short, the advantage that the place occupied area is little, but, because the restriction of its sintering process and equipment can only be applicable to that the C total content is at the product of 5.88%-5.92% in the alloy, therefore, the carbon point of tungsten carbide is interval narrow in the alloy of its suitable sintering.Particularly existing hard alloy vacuum sintering furnace is not provided with the binder removal system, therefore, during sintering, will inevitably adhere to cull in heat preservation carbon felt, the body of heater, on the one hand, it is uneven that the stove inner cylinder body is conducted heat, cause shell deformation for a long time, temperature homogeneity reduces in the stove, and the product that sintering comes out is inconsistent because of atmosphere inequality color, the quality instability, particularly be not suitable for the high cobalt product of sintering, as YG15 and YG20C etc.; On the other hand, sealing carbon felt needs regularly to change.
The utility model content
The purpose of this utility model be to overcome the deficiency of prior art and provide a kind of device structure simple, easy to operate, integrate a kind of carbide alloy that comes unstuck with the vacuum-sintering vacuum-sintering all-in-one oven that comes unstuck.
A kind of carbide alloy of the utility model vacuum-sintering all-in-one oven that comes unstuck comprises: body of heater, incubator, agglomerating chamber, collection glue jar, take out glue pump, vavuum pump; Described body of heater is made up of bracing frame and furnace shell, and described furnace shell is hollow cylinder and is packed on the support frame as described above; Described incubator cross section is square and is installed in the described furnace shell inner chamber; Described agglomerating chamber supports by the graphite pads that is packed in described incubator bottom surface and is installed in the described incubator, between described agglomerating chamber outer wall and incubator inwall electric heating element, heat-insulation layer is installed successively; Between described furnace shell and incubator shell, the cooling water pipe that is communicated with the peripheral hardware circulating water pipe is installed; Be provided with an end in the bottom of described furnace shell and be communicated with described agglomerating chamber, the other end and described collection glue is tank connected to go out sebific duct; Described collection glue jar is connected with the described glue pump of taking out by pipeline; On described furnace shell, also be provided with the vacuum orifice that the heat supply galvanic couple inserts the thermocouple locating hole in the described incubator and is connected with described vavuum pump.
In the utility model, described vavuum pump is driven by frequency control motor.
Operation principle of the present utility model is sketched in following:
With the molded workpiece agglomerating chamber of packing into, start vavuum pump and vacuumize and keep the interior vacuum of stove at 75～85Pa, start and take out the glue pump, 1～2 ℃/min of control heating rate is warming up to 330～350 ℃, insulation 50～80min, make adhesive gasification, at this moment, the adhesive gas extraction agglomerating chamber after taking out the glue pump and will gasify, major part is cooled to liquid glue in collection glue jar, few part drains into outdoor by taking out the glue pump; Then, continue to be warming up to 630～660 ℃, insulation 50～80min makes remaining adhesive gas cracking in the stove, and the adhesive after the cracking is also extracted agglomerating chamber out by taking out the glue pump, finish come unstuck after, continue to be evacuated to 140～160Pa, be warming up to 1410～1480 ℃ simultaneously, insulation 50～70min, heating rate is controlled at 2～8 ℃/min, finishes sintering.
The utility model has following advantage owing to adopt said structure:
1, sintering comes unstuck and all once finishes in stove, has avoided the logical hydrogen back semi-finished product that come unstuck to be exposed in the air the easily shortcoming of oxidation, effectively improves the product sintering quality; Simultaneously, can shorten the sintering period, energy savings effectively reduces product sintering cost.
2, adhesive is by gasification, two steps of cracking, come unstuck fully, effectively reduce cull and stick to probability on carbon felt, the furnace wall, effectively improve the uniformity that the stove inner cylinder body conducts heat, improve the uniformity of temperature in the burner hearth, effectively improve each uniformity behind the product sintering to performance.
But the scope of 3 sintered products is wide, on the one hand, because the back semi-finished product of having avoided coming unstuck are exposed in the air the easily shortcoming of oxidation, and therefore, not only can the bigger product of sintering component particles, more can sintering fine grained product; On the other hand owing to come unstuck fully, and under vacuum state sintering, therefore, be suitable in the alloy C total content at the sintering of the complete series product of 5.88%-6.18%.
4, equipment volume is little, floor space and occupying little space, and cost is low.
5, production process safety has stopped to adopt logical combustion of hydrogen to come unstuck, and the phenomenon of hydrogen explosion easily takes place.
In sum, the utility model device structure is simple, easy to operate, integrate and come unstuck and vacuum-sintering, can effectively improve the product sintering quality; Shorten the sintering period, energy savings effectively reduces product sintering cost; But the scope of sintered products is wide; Equipment manufacturing cost is low; Production process safety; Be suitable for renewal product as existing sintering cemented carbide equipment.
Description of drawings
Accompanying drawing is the come unstuck structural representation of vacuum-sintering all-in-one oven of a kind of carbide alloy of the utility model.
Among the figure: 1---body of heater, 2---incubator, 3---agglomerating chamber, 4---collection glue jar, 5---take out glue pump, 6---vavuum pump.
The specific embodiment
Below in conjunction with accompanying drawing a kind of carbide alloy of the utility model vacuum-sintering all-in-one oven that comes unstuck is described in further detail.
Referring to accompanying drawing, a kind of carbide alloy of the utility model vacuum-sintering all-in-one oven that comes unstuck comprises: body of heater 1, incubator 2, agglomerating chamber 3, collection glue jar 4, take out glue pump 5, vavuum pump 6; Described body of heater 1 is made up of bracing frame 7 and furnace shell 8, and described furnace shell 8 is hollow cylinder and is packed on the support frame as described above 7; Described incubator 2 cross sections are square and are installed in described furnace shell 8 inner chambers; Described agglomerating chamber 3 supports by the graphite pads 9 that is packed in described incubator 2 bottom surfaces and is installed in the described incubator 2, between described agglomerating chamber 3 outer walls and incubator 2 inwalls electric heating element 10, heat-insulation layer 11 is installed successively; Between described furnace shell 8 and incubator 2 shells, the cooling water pipe 12 that is communicated with the peripheral hardware circulating water pipe is installed; Be provided with an end in the bottom of described furnace shell 8 and be communicated with described agglomerating chamber 3, the other end is connected with described collection glue jar 4 goes out sebific duct 13; Described collection glue jar 4 is connected with the described glue pump 5 of taking out by pipeline; On described furnace shell 8, also be provided with the vacuum orifice 15 that the heat supply galvanic couple inserts the thermocouple locating hole 14 in the described incubator 2 and is connected with the described vavuum pump 6 that is driven by frequency control motor.
Claims (2)
1, a kind of carbide alloy vacuum-sintering all-in-one oven that comes unstuck comprises: body of heater, incubator, agglomerating chamber, collection glue jar, take out glue pump, vavuum pump; It is characterized in that: described body of heater is made up of bracing frame and furnace shell, and described furnace shell is hollow cylinder and is packed on the support frame as described above; Described incubator cross section is square and is installed in the described furnace shell inner chamber; Described agglomerating chamber supports by the graphite pads that is packed in described incubator bottom surface and is installed in the described incubator, between described agglomerating chamber outer wall and incubator inwall electric heating element, heat-insulation layer is installed successively; Between described furnace shell and incubator shell, the cooling water pipe that is communicated with the peripheral hardware circulating water pipe is installed; Be provided with an end in the bottom of described furnace shell and be communicated with described agglomerating chamber, the other end and described collection glue is tank connected to go out sebific duct; Described collection glue jar is connected with the described glue pump of taking out by pipeline; On described furnace shell, also be provided with the vacuum orifice that the heat supply galvanic couple inserts the thermocouple locating hole in the described incubator and is connected with described vavuum pump.
2, a kind of carbide alloy according to claim 1 vacuum-sintering all-in-one oven that comes unstuck, it is characterized in that: described vavuum pump is driven by frequency control motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200649878U CN201429317Y (en) | 2009-06-30 | 2009-06-30 | Hard alloy degumming and vacuum sintering integral furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200649878U CN201429317Y (en) | 2009-06-30 | 2009-06-30 | Hard alloy degumming and vacuum sintering integral furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201429317Y true CN201429317Y (en) | 2010-03-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009200649878U Expired - Fee Related CN201429317Y (en) | 2009-06-30 | 2009-06-30 | Hard alloy degumming and vacuum sintering integral furnace |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102901343A (en) * | 2012-11-12 | 2013-01-30 | 湖南山联新材科技有限公司 | Industrial microwave sintering hard alloy equipment |
| CN102980390A (en) * | 2012-12-24 | 2013-03-20 | 苏州工业园区杰士通真空技术有限公司 | Tantalum capacitor vacuum sintering dewaxing furnace |
| CN103438713A (en) * | 2013-09-02 | 2013-12-11 | 镇江能斯特汽车科技有限公司 | Ceramic sintering furnace device |
| CN103557710A (en) * | 2013-10-28 | 2014-02-05 | 北京泰科诺科技有限公司 | Rapid circulation air cooling vacuum furnace |
-
2009
- 2009-06-30 CN CN2009200649878U patent/CN201429317Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102901343A (en) * | 2012-11-12 | 2013-01-30 | 湖南山联新材科技有限公司 | Industrial microwave sintering hard alloy equipment |
| CN102980390A (en) * | 2012-12-24 | 2013-03-20 | 苏州工业园区杰士通真空技术有限公司 | Tantalum capacitor vacuum sintering dewaxing furnace |
| CN103438713A (en) * | 2013-09-02 | 2013-12-11 | 镇江能斯特汽车科技有限公司 | Ceramic sintering furnace device |
| CN103438713B (en) * | 2013-09-02 | 2015-04-08 | 镇江能斯特汽车科技有限公司 | Ceramic sintering furnace device |
| CN103557710A (en) * | 2013-10-28 | 2014-02-05 | 北京泰科诺科技有限公司 | Rapid circulation air cooling vacuum furnace |
| CN103557710B (en) * | 2013-10-28 | 2016-06-15 | 北京泰科诺科技有限公司 | A kind of Rapid Circulation air-cooling vacuum furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100324 Termination date: 20110630 |