CN203791617U - Novel graphite boat - Google Patents
Novel graphite boat Download PDFInfo
- Publication number
- CN203791617U CN203791617U CN201420156926.5U CN201420156926U CN203791617U CN 203791617 U CN203791617 U CN 203791617U CN 201420156926 U CN201420156926 U CN 201420156926U CN 203791617 U CN203791617 U CN 203791617U
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- China
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- graphite boat
- sidewall
- distance
- base plate
- top margin
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Abstract
The utility model relates to a tool used for a hard alloy sintering process, in particular to a novel graphite boat used for the hard alloy sintering process. The novel graphite boat comprises a graphite boat body composed of a side wall and a baseplate, two grooves are arranged on each side-wall chord edge, depth of each groove is 1-5mm, a distance between each two adjacent grooves on a same side-wall chord edge is 10-30mm, a distance between the edge of each groove and the outer edge of the side wall of the graphite boat is 18-22mm, and a step is arranged on the bottom edge of the baseplate. Multiple ventilating holes are arranged on the side wall of the graphite boat, so that gas generated after pyrolysis gasification of polyethylene glycol which is a forming agent can be dicharged timely, a vacuum state is ensured to be formed around the novel graphite boat, and blade quality is improved.
Description
Technical field
The utility model relates to a kind of instrument for hard alloy vacuum sintering process, especially a kind of graphite boat for hard alloy vacuum sintering process.
Background technology
Hard alloy vacuum sintering is now widely used sintering process, packs in graphite boat by qualified pressed compact, then the graphite boat that installs product is packed in stove by the mode of stacked on top, vacuumizes sintering.
In the time producing hard alloy numerical control blade, be general in the world new and high technology by polyethylene glycol (PEG) as forming agent, constant product quality and high compared with rubber-like forming agent product quality.In the time adopting polyethylene glycol (PEG) to make forming agent production hard alloy numerical control blade, during due to sintering, graphite boat all adopts the mode shove charge (totally 3 heaps) that 1+N piles up, the structure of existing graphite boat is unfavorable for the discharge of gas, cause hard alloy numerical control blade can't meet the quality requirement: owing to containing oxygen element in polyethylene glycol (PEG), if gas is discharged not in time, to cause on the one hand blade oxidation, blade internal soundness does not reach requirement; To cause on the other hand blade face severe oxidation, there is air marks in surface, and surface quality does not reach requirement.Therefore, existing graphite boat is only only applicable to the production of rubber-like forming agent product, and rubber-moulding agent is unfavorable for the carbon of determining of alloy product, is fundamentally unfavorable for stabilizing and increasing of alloy product quality.
Another kind of solution is to adopt the positive pressure-off PEG of hydrogen, passes in stove by hydrogen, in the time that in stove, Hydrogen Vapor Pressure reaches certain value, spray, and ignition simultaneously, utilize the powerful penetration power of hydrogen, other gas is taken out of in the lump.Utilizing the de-PEG of hydrogen is a kind of practicable method, but hydrogen is damp, and safety requirements is high, and expensive, and production cost increases.
Utility model content
The utility model is intended to address the above problem, and a kind of novel graphite boat is provided, and the gas that forming agent polyethylene glycol can be produced after pyrolysis gasification is discharged in time, guarantees that product is vacuum state around, improves the quality of products, and its technical scheme adopting is as follows:
A kind of novel graphite boat, comprises the graphite boat body being made up of sidewall and base plate, and the long limit of described graphite boat is x, x=400m, and broadside is y, y=350m; End face and the bottom surface of described graphite boat base plate are plane, and described each sidewall is provided with two grooves on profound limit, and described groove is a deeply, and the span of a is 1-5mm, preferred a=3mm; On the profound limit of described same sidewall, the distance of adjacent two grooves is b, and the span of b is 10-30mm, preferred b=20mm; Distance between the outward flange of described recess edge and graphite boat sidewall is c, and the span of c is 18-22mm, preferred c=20mm; The distance on described sidewall top margin and base plate base is d, and the span of d is 22-28mm, preferred d=25mm; The distance of described sidewall top margin and base plate top margin is e, and the span of e is 12-18mm, preferred e=15mm; The thickness of described sidewall is f, f=10mm; The bottom margin of described base plate is provided with step, and the height of described step is g, g=1mm, and the width of step is h, h=11mm.
The utlity model has following advantage: the utility model arranges multiple vent grooves on the sidewall of graphite boat, the gas that forming agent polyethylene glycol can be produced after pyrolysis gasification is discharged in time, guarantees that product is vacuum state around, improves blade quality.The utility model is simple in structure, cost is low, safe and reliable.
Brief description of the drawings
Fig. 1: top view of the present utility model;
Fig. 2: long side view of the present utility model;
Fig. 3: broadside side view of the present utility model;
1. graphite boat body, 2. sidewall, 3 base plates., 4. groove, 5. step.
Detailed description of the invention
Below in conjunction with accompanying drawing and example, the utility model is described in further detail:
embodiment 1
A kind of novel graphite boat, comprises the graphite boat body 1 being made up of sidewall 2 and base plate 3, and the long limit x of described graphite boat is 400m, and broadside y is 350m; End face and the bottom surface of described graphite boat base plate are plane, and described each sidewall is provided with two grooves 4 on profound limit, and the dark a of described groove is 1mm; On the profound limit of described same sidewall, the distance b of adjacent two grooves is 10mm; Distance c between the outward flange of described recess edge and graphite boat sidewall is 18mm; The distance d on described sidewall top margin and base plate base is 22mm; The distance e of described sidewall top margin and base plate top margin is 12mm; The thickness f of described sidewall is 10mm; The bottom margin of described base plate is provided with step 5, and the height g of described step is 1mm, and the width h of step is 11mm, and the width of step is greater than the thickness of sidewall, in the time stacking graphite boat, can increase fastness.
embodiment 2
A kind of novel graphite boat, comprises the graphite boat body 1 being made up of sidewall 2 and base plate 3, and the long limit x of described graphite boat is 400m, and broadside y is 350m; End face and the bottom surface of described graphite boat base plate are plane, and described each sidewall is provided with two grooves 4 on profound limit, and the dark a of described groove is 3mm; On the profound limit of described same sidewall, the distance b of adjacent two grooves is 20mm; Distance c between the outward flange of described recess edge and graphite boat sidewall is 20mm; The distance d on described sidewall top margin and base plate base is 25mm; The distance e of described sidewall top margin and base plate top margin is 15mm; The thickness f of described sidewall is 10mm; The bottom margin of described base plate is provided with step 5, and the height g of described step is 1mm, and the width h of step is 11mm.
embodiment 3
A kind of novel graphite boat, comprises the graphite boat body 1 being made up of sidewall 2 and base plate 3, and the long limit x of described graphite boat is 400m, and broadside y is 350m; End face and the bottom surface of described graphite boat base plate are plane, and described each sidewall is provided with two grooves 4 on profound limit, and the dark a of described groove is 5mm; On the profound limit of described same sidewall, the distance b of adjacent two grooves is 30mm; Distance c between the outward flange of described recess edge and graphite boat sidewall is 22mm; The distance d on described sidewall top margin and base plate base is 28mm; The distance e of described sidewall top margin and base plate top margin is 18mm; The thickness f of described sidewall is 10mm; The bottom margin of described base plate is provided with step 5, and the height g of described step is 1mm, and the width h of step is 11mm.
With way of example, the utility model is illustrated above, but the utility model is not limited to above-mentioned specific embodiment, all any changes of doing based on the utility model or modification all belong to the claimed scope of the utility model.
Claims (6)
1. a novel graphite boat, is characterized in that: comprise the graphite boat body being made up of sidewall and base plate, the long limit of described graphite boat is 400m, and broadside is 350m; End face and the bottom surface of described graphite boat base plate are plane, and described each sidewall is provided with two grooves on profound limit, and described groove is 1-5mm deeply; On the profound limit of described same sidewall, the distance of adjacent two grooves is 10-30mm; Distance between the outward flange of described recess edge and graphite boat sidewall is 18-22mm; The distance on described sidewall top margin and base plate base is 22-28mm; The distance of described sidewall top margin and base plate top margin is 12-18mm; The thickness of described sidewall is 10mm; The bottom margin of described base plate is provided with step, and the height of described step is 1mm, and the width of step is 11mm.
2. a kind of novel graphite boat according to claim 1, is characterized in that: described groove is 3mm deeply.
3. a kind of novel graphite boat according to claim 1, is characterized in that: on the profound limit of described same sidewall, the distance of adjacent two grooves is 20mm.
4. a kind of novel graphite boat according to claim 1, is characterized in that: the distance between described recess edge and the outward flange of graphite boat sidewall is 20mm.
5. a kind of novel graphite boat according to claim 1, is characterized in that: the distance on described sidewall top margin and base plate base is 25mm.
6. a kind of novel graphite boat according to claim 1, is characterized in that: the distance of described sidewall top margin and base plate top margin is 15mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420156926.5U CN203791617U (en) | 2014-04-02 | 2014-04-02 | Novel graphite boat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420156926.5U CN203791617U (en) | 2014-04-02 | 2014-04-02 | Novel graphite boat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203791617U true CN203791617U (en) | 2014-08-27 |
Family
ID=51373886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420156926.5U Expired - Fee Related CN203791617U (en) | 2014-04-02 | 2014-04-02 | Novel graphite boat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203791617U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104399988A (en) * | 2014-12-15 | 2015-03-11 | 技锋精密刀具（马鞍山）有限公司 | Hard alloy ultrathin small circle blade production system |
-
2014
- 2014-04-02 CN CN201420156926.5U patent/CN203791617U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104399988A (en) * | 2014-12-15 | 2015-03-11 | 技锋精密刀具（马鞍山）有限公司 | Hard alloy ultrathin small circle blade production system |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140827 Termination date: 20160402 |