CN1057041C - Method for extruding carbon products and device thereof - Google Patents
Method for extruding carbon products and device thereof Download PDFInfo
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- CN1057041C CN1057041C CN98107131A CN98107131A CN1057041C CN 1057041 C CN1057041 C CN 1057041C CN 98107131 A CN98107131 A CN 98107131A CN 98107131 A CN98107131 A CN 98107131A CN 1057041 C CN1057041 C CN 1057041C
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- paste jar
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- thickener
- jar
- type mouth
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Abstract
The present invention relates to a method and a device for extruding and forming a carbon product. The present extruding and forming method has the defects of large extruding tonnage of required devices, much energy consumption, large volume, high cost, and little density for a processed product; when the present invention extrudes the paste by a traditional method, the vibration force is applied; the device of the method is formed by the method that the device is provided with a vibration motor capable of driving a paste cylinder to vibrate. When the vibration extruding method and the device are adopted for the forming, the required extruding tonnage of the device can be greatly reduced, and simultaneously the volume of a machine body can be reduced; the present invention can reduce the weight, can decrease the manufacturing cost, and can also improve the product density.
Description
The invention belongs to a kind of method and device of carbon product extrusion modling.
Existing carbon product forming method has the forming method of vibration mold pressing combination, and the shortcoming of this method is once can only product of moulding, inefficiency, and also the feed particles preferred orientation is bad in the goods, thereby the resistivity height.Also have a kind of extrusion process, its advantage is to go out product continuously, high efficiency, and the particle preferred orientation is good in the goods, resistivity is low, but the extruding power set tonnage of this method equipment needed thereby is big, and consumption of power is big, volume is big, the cost height, and also the carbon product density that processes is little.Requirement to graphite electrode on the modern converter is that resistivity is low more good more, and to reduce electric energy loss, density is high more good more, and reducing consumption of electrode, and the graphite electrode that goes out with above-mentioned pressing method and device fabrication is low because of density, so the consumption of electrode when making steel is big.
The present invention aims to provide that a kind of equipment needed thereby power consumption is few, and volume is little, and cost is low, the carbon product extrusion process that the product density that processes is big.
Another object of the present invention provides a kind of device that is applicable to said method.
The extrusion process of realizing above-mentioned purpose is:
With the paste jar of extruder and the heating of type mouth and remain on predetermined temperature, block the outlet of type mouth front portion, in cylinder, add the thickener for preparing, with extrusion head thickener is applied extruding force and carry out precompressed, open the baffle plate of type mouth then, push thickener with extrusion head again, thickener is extruded from the open front of type mouth, whenever reach predetermined length and promptly cut off, form green compact;
It is characterized in that: apply extruding force to thickener and carry out applying vibration force to thickener simultaneously in the process of precompressed aforementioned at least.
The extrusion forming device structure that realizes above-mentioned purpose is: this device comprises the cylindric paste jar that is positioned on the brace table, is with loading hopper, be installed in the type mouth of paste jar front port, stretch into the extrusion head of paste jar with being slidingly matched, be installed in the paste jar rear portion, be connected as a single entity and can drive the power set of extrusion head back and forth movement with paste jar, be provided with heater in paste jar and the type mouth, it is characterized in that, the vibrating motor that can drive paste jar and vibrate with its power set that are connected as a single entity is housed on this device.
Adopt the course of work of said method and device to be, be heated to predetermined temperature for paste jar and type mouth by heater earlier, requiring of this predetermined temperature and conventional method is identical, paste jar is 110-150 ℃, the type mouth is 120-180 ℃, carry out forming operation then, type mouth front port is blocked and axially locking with baffle plate, in paste jar, add the thickener for preparing by loading hopper, carry out precompressed with extrusion head to type mouth direction extruding thickener again, in the precompressed process, open vibrating motor, make paste jar be in vibrational state.Behind the precompressed certain hour, extrusion head is drawn back slightly, make the thickener release, again baffle plate is mentioned, push pressure head forward, the thickener in the paste jar is pushed out by the type mouth with power set, reaching predetermined length promptly cuts off, form green compact, continuously shaped, until till green compact of the not enough extruding of the surplus material in the paste jar.During the extruding ejection, vibrating motor can be started, also vibrating motor can be closed.
The forming method and the equipment that adopt the present invention to vibrate the extruding combination can be obtained following tangible good effect:
1, can significantly reduce the extruding tonnage of former.The carbon product of processing same diameter, the extruding tonnage of employing this method equipment needed thereby has only the 5%-10% of the required extruding tonnage of conventional extruded method.When being minor diameter electrode green compact below the 400mm and electrode contact green compact as the extrusion modling diameter, the extruding tonnage of required common extruder is the 1500-2500 ton, adopts the vibration extruder of this method then only to need a 75-100 ton to get final product.The graphite electrode green compact of moulding 450-600mm and for example, required common extruder tonnage is 3500 tons, adopt the extruder of this vibration pressing method then only to need the 150-300 ton, but also plastic diameter reaches the graphite electrode green compact of 700mm.
2, can dwindle the extruder fuselage length.For example owing to the required vibration extruder tonnage of this method is low, when using hydraulic power unit, only need to adopt a piston-type hydro compressing cylinder, the piston of oil cylinder can use as extrusion head the while, so shortened fuselage.Because this machine carries out precompressed under vibrational state, can improve the compaction rate of thickener again, so not strict to the requirement of type mouth curve, the type mouth can be very short, and fuselage size is further shortened.
3, can alleviate former weight.Because the required vibration extruder of this method tonnage is little, pressure is low, used power set in light weight, and the wall of paste jar, type mouth is thinner, and complete machine weight has only the 10%-25% of the general extruder of identical effectiveness.
4, improved product density.Bulk density as the graphite electrode green compact of common extruder production is generally 1.68-1.70t/m
3, and adopt the graphite electrode green compact bulk density of the vibration extruder production of this method generally can reach 1.71-1.74t/m
3Thereby, improved product quality.
5, adopt the make-up machine cost of this method low, power consumption is few.Because this machine tonnage is little, fuselage is short, and is in light weight, so cost is low, has only the 15-30% of the common extruder of identical effectiveness approximately.And to join the power of dynamical system little, the heating energy consumption of paste jar and type mouth is low, so reduced power consumption.
Description of drawings
Fig. 1 embodiment of the invention 1 hydraulic levels vibration extruder structural representation
1-power set 2-extrusion head 3-loading hopper 4-paste jar 5-type mouth 6-baffle plate
7-baffle plate oil cylinder 8-bearing material groove 9-slideway 10-slide block 11-vibrating motor
12-spring 13-supporting station 14-pedestal 15-spring anchorage bracket
Fig. 2 embodiment of the invention 2 hydraulic pressure vertical vibration extruder structural representations
16-upper spider 17-vacuumizes the hole
Fig. 3 embodiment of the invention 3 screw press horizontal vibration extruder structural representations
Embodiment 1
The detailed process of this example vibration extrusion process is:
1, with the paste jar of extruder and the heating of type mouth and remain on predetermined temperature, block the outlet of type mouth front portion, open vibrating motor, apply vibration force to paste jar, and in cylinder, add the thickener for preparing one by one, and the limit is reinforced, and the power set that start the rear portion simultaneously drive extrusion head and one by one thickener are pushed to the anterior type mouth of paste jar end, carry out repeatedly, till filling up requirement.
2, limit vibration, the limit applies extruding force and carries out precompressed adding enough thickeners with extrusion head, and squeeze time is 3-10 minute;
3, make extrusion head retreat, give the thickener release after, open the baffle plate of type mouth, limit vibration, thickener is pushed with extrusion head in the limit, and thickener is extruded from the open front of type mouth, whenever reaches predetermined length and promptly cuts off, form green compact, continuously shaped, the surplus material in paste jar is not enough to be pushed till the green compact;
This example is all opened vibrating motor and is applied vibration force to thickener in above-mentioned reinforced, pusher, precompressed and extruding ejection process.
The device that this method adopts is that hydraulic levels is to the vibration single lead screw ex truding briquetting machine, power set 1 adopt hydraulic jack, hydraulic jack is connected as a single entity by flange and paste jar rear portion relative fixed, make extrusion head with piston 2, described vibrating motor 11 is installed on the cylinder body of paste jar 4 by the direction that can make paste jar generation level to vibration, the syndeton of paste jar and the power set that are connected as a single entity with it and described brace table 13 is: paste jar 4 and power set 1 are fixed on several slide blocks 10, slide block 10 all embeds in the slideway 9 that is fixed on the brace table pedestal 14 with being slidingly matched, the energy level is installed to flexible spring 12 between the spring anchorage bracket 15 on the pedestal 14 of slide block 10 and brace table.
These routine type mouth 5 front opening places are provided with and can be vertically driven the baffle plate 6 that moves up and down and can be axially locked to baffle plate oil cylinder 7, type mouth front end exit place also is provided with semicircle tubular or flat bearing material groove 8, block type mouth front port during baffle plate 6 stretching motions with being axially locked, also can be used for cutting off green compact, bearing material groove 8 is used to accept the green compact that come out from type mouth mouth.
Embodiment 2
This example is in the conventional extruded forming method, in reinforced, pusher, precompressed process, apply vibration force to thickener, making the operation of reinforced, pusher, precompressed simultaneously is to carry out under the negative pressure state that paste jar is vacuumized, and the operation of reinforced, pusher, precompressed, extruding ejection is all carried out under the negative pressure state that paste jar is vacuumized.
The device that this method adopts be hydraulic pressure vertically to the vibration single lead screw ex truding briquetting machine, its power set also are to adopt hydraulic jack, piston is made extrusion head, hydraulic jack is connected as a single entity with flange and paste jar rear portion relative fixed.Paste jar reaches and the syndeton of its power set that are connected as a single entity and described brace table 13 is: paste jar 4 and power set 1 are fixed on the upper spider 16 of brace table 13, described vibrating motor 11 is installed on the upper spider by the direction that paste jar is produced vertically to vibration, and being equipped with between the upper spider 16 of brace table and the pedestal 14 of brace table bottom can be vertical to the spring 12 that stretches.
The above-mentioned vertical vibrating motor to vibration of paste jar generation that can make also can be directly installed on the paste jar.
This example also is provided with on paste jar and vacuumizes hole 17, and available vacuum extractor vacuumizes paste jar by this hole in the process of pusher, precompressed and extruding ejection like this, makes it be negative pressure state, further improves the compacted density of thickener.
Embodiment 3
These routine power set 1 are to adopt fly press, but extrusion head 2 is fixed on the fly press level on flexible driving screw-casing.
Because the present invention is when the extruding ejection, can apply vibration force, also can not apply vibration force, so when vibration pusher and precompressed are compacted, paste jar can be placed on the general shake table and operate, operate under the state that does not add vibration force on the common extruder and change to be placed on when the extruding ejection, this also belongs to a kind of modification that the present invention vibrates pressurizing unit.
Claims (7)
1, carbon product extrusion process:
With the paste jar of extruder and the heating of type mouth and remain on predetermined temperature, block the outlet of type mouth front portion, in cylinder, add the thickener for preparing, with extrusion head thickener is applied extruding force and carry out precompressed, open the baffle plate of type mouth then, push thickener with extrusion head again, thickener is extruded from the open front of type mouth, whenever reach predetermined length and promptly cut off, form green compact;
It is characterized in that: apply extruding force to thickener and carry out applying vibration force to thickener simultaneously in the process of precompressed aforementioned at least
2, method according to claim 1 is characterized in that, all applies vibration force to thickener simultaneously in reinforced, precompressed and extruding ejection process.
3, method according to claim 1 and 2 is characterized in that, making described operation reinforced, precompressed at least is to carry out under the negative pressure state that paste jar is vacuumized.
4, the device that is used for the described method of claim 1, comprise and be positioned at the cylindric paste jar (4) that brace table (13) is gone up, is with loading hopper, be installed in the type mouth (5) of paste jar front port, stretch into the extrusion head (2) of paste jar with being slidingly matched, be installed in the paste jar rear portion, be connected as a single entity and can drive the power set (1) of extrusion head back and forth movement with paste jar, be provided with heater in paste jar and the type mouth, it is characterized in that this device also is equipped with the vibrating motor (11) that can drive paste jar and vibrate with its power set that are connected as a single entity.
5, device according to claim 4, it is characterized in that, described vibrating motor (11) is installed on the cylinder body of paste jar (4) by the direction that can make paste jar generation level to vibration, the syndeton of paste jar and the power set that are connected as a single entity with it and described brace table (13) is: paste jar (4) and power set (1) are fixed on several slide blocks (10), slide block (10) all embeds in the slideway (9) that is fixed on the brace table pedestal (14) with being slidingly matched, the energy level is installed to flexible spring (12) between the spring anchorage bracket (15) on slide block (10) and the brace table pedestal (14).
6, device according to claim 4, it is characterized in that, described paste jar reaches and the syndeton of its power set that are connected as a single entity and described brace table (13) is: paste jar (4) and power set (1) are fixed on the upper spider (16) of brace table (13), described vibrating motor (11) is installed on upper spider or the paste jar by the direction that paste jar is produced vertically to vibration, and being equipped with between the pedestal (14) of the upper spider of brace table (16) and supporting station bottom can be vertical to the spring (12) that stretches.
7, according to claim 4,5 or 6 described devices, it is characterized in that, on described paste jar, be provided with and vacuumize hole (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98107131A CN1057041C (en) | 1998-02-27 | 1998-02-27 | Method for extruding carbon products and device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98107131A CN1057041C (en) | 1998-02-27 | 1998-02-27 | Method for extruding carbon products and device thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1190862A CN1190862A (en) | 1998-08-19 |
| CN1057041C true CN1057041C (en) | 2000-10-04 |
Family
ID=5219230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98107131A Expired - Fee Related CN1057041C (en) | 1998-02-27 | 1998-02-27 | Method for extruding carbon products and device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1057041C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102095483B (en) * | 2010-11-19 | 2012-07-04 | 太原重工股份有限公司 | Weighing device of carbon extruder |
| CN102191351A (en) * | 2011-03-17 | 2011-09-21 | 上海大学 | Low-carbon alloy steel smelting method capable of reducing volatile alloy element burning loss, packaging body, long belt of packaging body and feeding method and special feeding device of packaging body |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1035079A (en) * | 1987-07-14 | 1989-08-30 | 巴韦尔国际有限公司 | Follow-on extrusion equipment |
| CN2065105U (en) * | 1989-04-09 | 1990-11-07 | 田本良 | Hydraulic jarring moulding machine for carbon products |
-
1998
- 1998-02-27 CN CN98107131A patent/CN1057041C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1035079A (en) * | 1987-07-14 | 1989-08-30 | 巴韦尔国际有限公司 | Follow-on extrusion equipment |
| CN2065105U (en) * | 1989-04-09 | 1990-11-07 | 田本良 | Hydraulic jarring moulding machine for carbon products |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1190862A (en) | 1998-08-19 |
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