CN201653118U - Sintering furnace for preparing hard alloy - Google Patents
Sintering furnace for preparing hard alloy Download PDFInfo
- Publication number
- CN201653118U CN201653118U CN2010200460430U CN201020046043U CN201653118U CN 201653118 U CN201653118 U CN 201653118U CN 2010200460430 U CN2010200460430 U CN 2010200460430U CN 201020046043 U CN201020046043 U CN 201020046043U CN 201653118 U CN201653118 U CN 201653118U
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- Prior art keywords
- sintering furnace
- carbide alloy
- cylindrical shell
- hard alloy
- cartridge type
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Abstract
The utility model belongs to the technical field of hard alloy preparation and discloses a sintering furnace for preparing hard alloy. The main technical solution is characterized by comprising the following components: a cylindrical housing, a rectangular shell which is provided in the cylindrical housing and is composed of graphite plate for placing the hard alloy blank to be sintered, a heat insulation outer layer composed of carbon felt, energizing heating electrodes, a sealing door which is hinged with the cylindrical housing, a power electrode provided outside the cylindrical housing, and an insert gas adding device. The hardness and density of the hard alloy product sintered by the sintering furnace can be improved for 2-3%. The performance and quality of the hard alloy product are improved. Simultaneously, as the sintering furnace for preparing hard alloy is composed of the heat insulation outer layer made of carbon felt and graphite plate with anti-oxidation function, the sintering furnace has the characteristics of reasonable structure and high efficiency.
Description
Technical field
The utility model belongs to the carbide alloy preparing technical field, discloses a kind of carbide alloy preparation sintering furnace specifically.
Background technology
Hart metal product at first utilizes paraffin, rubber or plastics to make adhesive in process of production, and alloy powder is bonded together, and makes semifinished product, utilizes the moulding of sintering furnace direct sintering then.The sintering process of above-mentioned hart metal product makes it adhesive in the semifinished product gasify and exclude through high temperature exactly, and forms hard metal article.Present employed carbide alloy prepares with sintering furnace as shown in Figure 1, and its structure comprises the cylindrical shell 1 that is built into by refractory brick, is provided with the dawn 2 in the stainless steel in the inboard of cylindrical shell, is provided with to be used for the resistance wire 3 that electrically heated nichrome constitutes in refractory brick.When using this sintering furnace sintering and binder removal, at first the hart metal product semifinished product is arranged in the stainless steel in the dawn, connects the power supply heating then, make the adhesive composition gasification emptying in the semifinished product, promptly get hart metal product through high temperature sintering again.Utilizing the sintering furnace of said structure to produce carbide alloy, because its structural defective is very big to power consumption, is a kind of with the sintering furnace that is eliminated.
The utility model content
The purpose of this utility model just provides a kind of rational in infrastructure, carbide alloy that efficient is high preparation sintering furnace.
For realizing that the technical scheme that the utility model purpose is adopted is:
A kind of carbide alloy preparation sintering furnace, the housing that comprises cartridge type, in described cartridge type housing, be provided with the rectangle cylindrical shell that is used to place carbide alloy semifinished product to be sintered that constitutes by graphite cake, at the outside of this graphite cake cylindrical shell and the inboard outer and energising heating electrode of the insulation of wrapping up in by the carbon felt that is respectively arranged with, be provided with the hermatic door body that constitutes by metallic plate, carbon felt plate and graphite cake that is connected with the shell hinge of cartridge type in the end of this graphite cake cylindrical shell; Be provided with power electrode and inert gas adding apparatus in described cartridge type hull outside.
In addition, described energising heating electrode is made of the some alternate graphite posts that are connected respectively with two electrodes of power supply; The cross section of described rectangle cylindrical shell is a square; Be provided with cooling tube in the described rectangle cylindrical shell, the liquid circulation mechanism connection that this cooling tube is outer with being arranged at the cartridge type housing; The housing of described cartridge type is the barrel shape housing that an end is provided with the end; Be provided with the hermatic door body that constitutes by metallic plate, carbon felt plate and graphite cake that is connected with described shell hinge at the both ends of described graphite cake cylindrical shell.
Carbide alloy preparation sintering furnace provided by the utility model, compare with prior art and to have the following advantages: one, because the carbide alloy preparation is made of the insulation graphite cake outer and anti-oxidation effect that the carbon felt constitutes with the body of heater of sintering furnace, the body of heater of this structure is obviously much better than the heat insulation effect of the sintering furnace body that is made of refractory brick, therefore, this body of heater is used for the sintering efficiency of heating surface of carbide alloy semifinished product much higher; They are two years old, because carbide alloy preparation set heating electrode in the sintering body of heater, constitute by the some alternate graphite posts that are connected respectively with two electrodes of power supply, and the evenly distributed side-walls that constitutes in the graphite cake of anti-oxidation effect of graphite post electrode, heat evenly, can effectively reduce the thermograde in the sintering body of heater, make the carbide alloy semifinished product of arranging be in the synthermal space, provide effective assurance the quality that improves with the stove hart metal product; Its four owing to be provided with cooling body in the sintering body of heater, therefore, can reach the purpose of quenching so that the hart metal product behind the sintering is lowered the temperature rapidly in the preparation of this carbide alloy, help further improving the hardness and the density of carbide alloy.
Description of drawings
Fig. 1 is the radial section structural representation of prior art carbide alloy preparation with sintering furnace;
Fig. 2 is the radial section structural representation of carbide alloy preparation provided by the invention with sintering furnace;
Fig. 3 is above-mentioned carbide alloy preparation graphite post electrode structure schematic diagram in the sintering furnace;
Fig. 4 is the structural representation of above-mentioned carbide alloy preparation with sintering furnace.
The specific embodiment
Below in conjunction with accompanying drawing the structure of carbide alloy preparation provided by the utility model with sintering furnace is described in further detail:
Be depicted as the structural representation of carbide alloy preparation provided by the utility model as 2 figure with sintering furnace.Its structure comprises the cartridge type housing 18 that has steel plate to make with supporting role, in this cartridge type housing, be provided with and be used to place the rectangle cylindrical shell 5 for the treatment of binder removal carbide alloy semifinished product, this cylindrical shell is made of graphite cake 6 and the carbon felt 7 with good insulation effect that is wrapped on its outer wall, the inner peripheral of the cylindrical shell that constitutes at graphite cake is provided with the electrical heating electrode 8 that some graphite post constitutes, 9, the electrical heating electrode that this graphite post constitutes alternate with power supply just, negative pole 19,13 connect (shown in 3 figure), shown in 4 figure, side (or both sides) at this graphite cake cylindrical shell (this cylindrical shell is when being provided with the staving of bottom) is provided with cartridge type housing 18 hinged by metallic plate 10, the hermatic door body that carbon felt plate 11 and graphite cake 12 constitute, promptly close sealing Men Tike so that the rectangle cylindrical shell 5 that is made of graphite cake 6 forms a seal cavity, be used for the high temperature sintering of carbide alloy semifinished product; Cartridge type housing 18 is provided with heating electrode 19,13 and the inert gas adding apparatus 14 that is connected with power supply, wherein this inert gas adding apparatus joins the inert gas that argon gas, helium etc. can prevent oxidation reaction in seal cavity of rectangle cylindrical shell 5 formation by pipeline 15, and forms the high pressure of 60-100Kg/cm2.
In order to improve the containing quantity of carbide alloy semifinished product in the rectangle cylindrical shell, the cross section of this rectangle cylindrical shell is set to square structure.
In order to make the hart metal product behind the sintering lower the temperature rapidly, reached the purpose of quenching, help further improving the hardness and the density of carbide alloy.Be provided with cooling line 16 in the rectangle cylindrical shell, this cooling tube liquid circulation mechanism 17 outer with being arranged at the cartridge type housing is communicated with.
Feed the cooling of quenching of liquid nitrogen or liquid argon by in the rectangle cylindrical shell, being provided with liquid circulation mechanism 17 outside cooling line 16 and the cartridge type housing, come out of the stove then, can obtain highdensity hart metal product.After testing, after inert gases such as adding argon gas that pressure is 60-100Kg/cm2 or helium carried out pressure sintering 2-3 hour, the hardness of hart metal product and intensity can improve 2-3%.
Claims (6)
1. carbide alloy preparation sintering furnace, it is characterized in that: the housing that comprises cartridge type, in described cartridge type housing, be provided with the rectangle cylindrical shell that is used to place carbide alloy semifinished product to be sintered that constitutes by graphite cake, at the outside of this graphite cake cylindrical shell and the inboard outer and energising heating electrode of the insulation of wrapping up in by the carbon felt that is respectively arranged with, be provided with the hermatic door body that constitutes by metallic plate, carbon felt plate and graphite cake that is connected with the shell hinge of cartridge type in the end of this graphite cake cylindrical shell; Be provided with power electrode and inert gas adding apparatus in described cartridge type hull outside.
2. sintering furnace is used in a kind of carbide alloy preparation as claimed in claim 1, and it is characterized in that: described energising heating electrode is made of the some alternate graphite posts that are connected respectively with two electrodes of power supply.
3. sintering furnace is used in a kind of carbide alloy preparation as claimed in claim 1, and it is characterized in that: described rectangle cylindrical shell is square.
4. use sintering furnace as claim 1 or 3 described a kind of carbide alloy preparations, it is characterized in that: be provided with cooling tube in the described rectangle cylindrical shell, the liquid circulation mechanism connection that this cooling tube is outer with being arranged at the cartridge type housing.
5. sintering furnace is used in a kind of carbide alloy preparation as claimed in claim 4, and it is characterized in that: the housing of described cartridge type is the barrel shape housing that an end is provided with the end.
6. sintering furnace is used in a kind of carbide alloy preparation as claimed in claim 1, it is characterized in that: be provided with the hermatic door body that is made of metallic plate, carbon felt plate and graphite cake that is connected with described shell hinge at the both ends of described graphite cake cylindrical shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200460430U CN201653118U (en) | 2010-01-08 | 2010-01-08 | Sintering furnace for preparing hard alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200460430U CN201653118U (en) | 2010-01-08 | 2010-01-08 | Sintering furnace for preparing hard alloy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201653118U true CN201653118U (en) | 2010-11-24 |
Family
ID=43118359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010200460430U Expired - Fee Related CN201653118U (en) | 2010-01-08 | 2010-01-08 | Sintering furnace for preparing hard alloy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201653118U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108195200A (en) * | 2017-06-16 | 2018-06-22 | 中冶长天国际工程有限责任公司 | Anti- external combustion gas blowing device and its combustion gas blowing method |
| CN110579102A (en) * | 2019-08-13 | 2019-12-17 | 山东德艾普节能材料有限公司 | ultra-high temperature sintering furnace and sintering method for oxide fiber product |
-
2010
- 2010-01-08 CN CN2010200460430U patent/CN201653118U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108195200A (en) * | 2017-06-16 | 2018-06-22 | 中冶长天国际工程有限责任公司 | Anti- external combustion gas blowing device and its combustion gas blowing method |
| CN108195200B (en) * | 2017-06-16 | 2023-12-29 | 中冶长天国际工程有限责任公司 | External combustion preventing type fuel gas injection device and fuel gas injection method thereof |
| CN110579102A (en) * | 2019-08-13 | 2019-12-17 | 山东德艾普节能材料有限公司 | ultra-high temperature sintering furnace and sintering method for oxide fiber product |
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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: 20101124 Termination date: 20160108 |