CN202106032U - Graphite boat for round cutter sintering - Google Patents
Graphite boat for round cutter sintering Download PDFInfo
- Publication number
- CN202106032U CN202106032U CN2011201609112U CN201120160911U CN202106032U CN 202106032 U CN202106032 U CN 202106032U CN 2011201609112 U CN2011201609112 U CN 2011201609112U CN 201120160911 U CN201120160911 U CN 201120160911U CN 202106032 U CN202106032 U CN 202106032U
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- China
- Prior art keywords
- round
- concave cavity
- sintering
- circular
- graphite boat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model relates to a graphite boat for round cutter sintering, which is characterized in that heating uniformity can be improved during the sintering. The graphite boat for round cutter sintering comprises a round blade bearing body, the front face of the blade bearing body is provided with a round concave cavity, the middle part of the round concave cavity is provided with a through hole penetrating through the blade bearing body, and the peripheral edge of the round concave cavity is provided with a plurality of ventilation channels penetrating through the blade bearing body. During operation of the graphite boat for round cutter sintering, hot air gradually flows into the round concave cavity from the periphery of the round concave cavity, and then flows into the middle part of the round concave cavity to be discharged through exhaust through holes. Therefore, the heating uniformity of different parts of a round blade can be ensured, the heat difference of different parts of the round blade can be reduced effectively, gas released during degreasing and sintering of the round blade can be regularly discharged through the exhaust through holes, changes of materials in local areas caused by the heat difference and gas flow can be avoided to the large extent, and thus high-performance round thin cutter blanks can be obtained.
Description
Technical field
The utility model relates to a kind of sintering bracing or strutting arrangement, is specifically related to a kind of graphite boat that is used for the dise knife sintering.
Background technology
At present, sintering boat at home and abroad generally adopts square boat, in sintering process, the corrugation circular knife is placed in the square boat, and square boat put carries out vacuum-sintering to the vacuum sintering furnace and handle.Because it is not reciprocity with conduction that vacuum sintering furnace more or less exists radiation; Corrugation dise knife area is big, thin thickness; The thin cutter edge of a knife position of circle is near the heating tape, edge; Calandria (graphite heating rod) adds the middle part heating of the round thin cutter of ratio of specific heat soon to the direct reflection that circle approaches edge of a knife position, cutter product edge, and thin cutter product edge of generation circle and middle part exist than heat is poor greatly thus; Bigger thermal gradient causes cobalt phase macrosegregation, causes the local material composition of the thin cutter of circle rotten; The carbon generation binary reaction that serious cobalt that the position, edge also takes place and graphite cake are separated out produces third phase, and therefore square boat is not suitable for the sintering of corrugation dise knife.
The utility model content
The utility model technical problem to be solved provides a kind of graphite boat that is used for the dise knife sintering that can improve heating uniformity in the sintering process.
The utility model solves the technical scheme that its technical problem adopted: the graphite boat that is used for the dise knife sintering; Comprise blade support body; Said blade support body is circular; Be provided with circular-shaped, concave cavity in blade support body front, be provided with the through hole that penetrates blade support body, be provided with a plurality of gas-permeable channels that penetrate blade support body at the circular-shaped, concave cavity periphery at the circular-shaped, concave cavity middle part.
Further be that said a plurality of gas-permeable channels are evenly arranged in the periphery of circular-shaped, concave cavity.
Further be, be provided with round boss at the blade support body back side, the external diameter of said round boss is less than or equal to the internal diameter of circular-shaped, concave cavity.
The beneficial effect of the utility model is: during work; Hot gas enters in the circular-shaped, concave cavity around circular-shaped, concave cavity gradually; And then the middle part that flow to circular-shaped, concave cavity discharges from exhaust hole, thereby can guarantee the heating uniformity of dise knife blade different parts, and the heat that had both reduced dise knife blade different parts effectively is poor; The gas that discharges in the time of making the dise knife blade degreasing sintered again can be discharged from exhaust hole more regularly; Largely avoided bringing the sex change of regional area material, thereby the thin cutter blank material of circle that obtains having the high-quality performance is particluarly suitable for applying in circle and the thin blade sintering processes because of heat difference and airflow influence.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the vertical view of Fig. 1.
Be labeled as among the figure: blade support body 1, circular-shaped, concave cavity 2, exhaust hole 3, gas-permeable channels 4, round boss 5.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Extremely shown in Figure 2 like Fig. 1; The graphite boat that is used for the dise knife sintering of the utility model; Comprise blade support body 1, said blade support body 1 is circular, is provided with circular-shaped, concave cavity 2 in blade support body 1 front; Be provided with the exhaust hole 3 that penetrates blade support body 1 at circular-shaped, concave cavity 2 middle parts, be provided with a plurality of gas-permeable channels 4 that penetrate blade support body 1 at circular-shaped, concave cavity 2 peripheries.During work; Dise knife is placed in the circular-shaped, concave cavity 2 (exhaust hole 3 is communicated with through hole on the dise knife blade); And then the graphite boat of a plurality of the utility model overlaped put into vacuum sintering furnace and carry out vacuum-sintering and handle; At this moment, hot gas gets in the circular-shaped, concave cavity 2 from gas-permeable channels 4, discharges from exhaust hole 3 then.Therefore can find out; In this process; Hot gas enters in the circular-shaped, concave cavity 2 around circular-shaped, concave cavity 2 gradually, and then the middle part that flow to circular-shaped, concave cavity 2 discharges from exhaust hole 3, thereby can guarantee the heating uniformity of dise knife blade different parts; The heat that had both reduced dise knife blade different parts effectively is poor; The gas that discharges in the time of making the dise knife blade degreasing sintered again can be more regularly discharged from exhaust hole 3, largely avoided because of heat difference and airflow influence bring the sex change of regional area material, thereby the circle that obtains having the high-quality performance approaches the cutter blank material.
In order to ensure the uniformity of hot gas entering circular-shaped, concave cavity 2, said a plurality of gas-permeable channels 4 are evenly arranged in the periphery of circular-shaped, concave cavity 2.Thereby can guarantee that the heat around the circular-shaped, concave cavity 2 is identical, flow in the process of exhaust hole 3 at hot gas so, also just can guarantee the heating uniformity of dise knife blade.
Overlap onto on another graphite boat for the ease of the graphite boat with one of them the utility model, be provided with round boss 5 at blade support body 1 back side, the external diameter of said round boss 3 is less than or equal to the internal diameter of circular-shaped, concave cavity 2.Like this, the boss 5 of one of them graphite boat can be inserted in the circular-shaped, concave cavity 2 of another graphite boat, is convenient to graphite boat with a plurality of the utility model and overlaps and heat.
Claims (3)
1. the graphite boat that is used for the dise knife sintering; Comprise blade support body (1); It is characterized in that: said blade support body (1) is for circular; Be provided with circular-shaped, concave cavity (2) in blade support body (1) front, be provided with the exhaust hole (3) that penetrates blade support body (1), be provided with a plurality of gas-permeable channels (4) that penetrate blade support body (1) at circular-shaped, concave cavity (2) periphery at circular-shaped, concave cavity (2) middle part.
2. the graphite boat that is used for the dise knife sintering as claimed in claim 1 is characterized in that: said a plurality of gas-permeable channels (4) are evenly arranged in the periphery of circular-shaped, concave cavity (2).
3. according to claim 1 or claim 2 the graphite boat that is used for the dise knife sintering, it is characterized in that: be provided with round boss (5) at blade support body (1) back side, the external diameter of said round boss (3) is less than or equal to the internal diameter of circular-shaped, concave cavity (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201609112U CN202106032U (en) | 2011-05-19 | 2011-05-19 | Graphite boat for round cutter sintering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201609112U CN202106032U (en) | 2011-05-19 | 2011-05-19 | Graphite boat for round cutter sintering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202106032U true CN202106032U (en) | 2012-01-11 |
Family
ID=45431481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201609112U Expired - Lifetime CN202106032U (en) | 2011-05-19 | 2011-05-19 | Graphite boat for round cutter sintering |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202106032U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103307886A (en) * | 2013-05-17 | 2013-09-18 | 平湖市海特合金有限公司 | Reduction boat |
| CN104959607A (en) * | 2015-06-30 | 2015-10-07 | 成都易态科技有限公司 | Exhausting and sintering integration method and tool for implementing same |
-
2011
- 2011-05-19 CN CN2011201609112U patent/CN202106032U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103307886A (en) * | 2013-05-17 | 2013-09-18 | 平湖市海特合金有限公司 | Reduction boat |
| CN104959607A (en) * | 2015-06-30 | 2015-10-07 | 成都易态科技有限公司 | Exhausting and sintering integration method and tool for implementing same |
| CN104959607B (en) * | 2015-06-30 | 2017-05-17 | 成都易态科技有限公司 | Exhausting and sintering integration method and tool for implementing same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120111 |