CN206780611U - A kind of multi-level combination graphite jig available for more sample sizes hot pressed sinterings - Google Patents
A kind of multi-level combination graphite jig available for more sample sizes hot pressed sinterings Download PDFInfo
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- CN206780611U CN206780611U CN201720712201.3U CN201720712201U CN206780611U CN 206780611 U CN206780611 U CN 206780611U CN 201720712201 U CN201720712201 U CN 201720712201U CN 206780611 U CN206780611 U CN 206780611U
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- die sleeve
- hot pressed
- graphite jig
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Abstract
It the utility model is related to a kind of multi-level combination graphite jig available for more sample sizes hot pressed sinterings, the mould includes base, the back seat gasket of two different scales, one group of various sizes of layering die sleeve and seaming chuck, its center base and seaming chuck size immobilize.The graphite jig of this method design is detachable, can be individually replaced, and can adjust the combination of mould at any time according to the size of sample, and then the requirement of required size;Multilayer die sleeve also ensure that the temperature homogeneity in sintering process simultaneously.The advantages of the utility model patent is the hot pressed sintering that more sample sizes are realized by the combination of different levels die sleeve, and mould release combination is convenient, can effectively improve mould utilization rate, reduces production cost.
Description
Technical field
It the utility model is related to powder metallurgy and Production of Ceramics hot pressing die manufacture and design field, and in particular to be a kind of
Multi-level combination graphite jig available for more sample sizes hot pressed sinterings.
Background technology
Hot pressed sintering is a kind of material preparation technology for being combined molding with sintering, fills dry powder in preparation process
Insert in model, then heated from single shaft direction in pressurization, make shaping and sintering while complete.Hot pressed sintering is pressurizeed due to heating
Carry out simultaneously, powder is in hot plastic state, contributes to the contact diffusion of particle, flows the progress of mass transport process, thus is molded
Pressure is only 1/10 be cold-pressed;Sintering temperature can also be reduced, shortens sintering time, is grown up so as to resist crystal grain, it is thin to obtain crystal grain
The preferable product of small and combination property.Hot pressed sintering is pressed due to that need not add sintering aid or shaping assistant needed for hot pressing
Power is smaller, and product consistency is high, and size can be controlled accurately, therefore it is large-scale to can be used for production hard alloy roll, cutter etc.
Part and the poor high purity ceramic product of agglutinating property.
The shortcomings that hot pressed sintering, is primarily due to the technology and powder is directly loadable into die cavity, therefore the product in sintering process
It is larger to burn failure easily with mould intracavity wall adhesion, easily increase mould consumption, and preparation process and equipment are complicated,
Production control requires tight, and energy resource consumption is big, and production efficiency is relatively low, and production cost is high.
The content of the invention
It is a kind of mutually only the invention reside in providing for the problem of mould consumption is larger existing for above prior art
Stand, be detachable, can be individually replaced, there is more preferable temperature homogeneity, and the mould that can be adjusted at any time according to the size of sample
Tool combination, improves mold use rate, effectively reduces production cost.
A kind of multi-level combination graphite jig available for more sample sizes hot pressed sinterings of the invention, the graphite jig bag
Include seaming chuck (1), maximum die sleeve (2), the first middle die sleeve (3), minimum die sleeve (4), the first packing ring (5), minimum packing ring (6),
Base (7);
The maximum die sleeve (2), the first middle die sleeve (3), minimum die sleeve (4), the first packing ring (5), minimum packing ring (6) are equal
In annulus cylindricality;
The base (7) is made up of projection (7a) and bottom (7b), and the height for defining projection (7a) is A;
First packing ring (5), the consistency of thickness of minimum packing ring (6), and it is equal to A equal to thickness;
The seaming chuck (1) is made up of pedestal (1a) and projection (1b);Define projection (1b) height for B,
A diameter of E, then the height of maximum die sleeve (2) be also equal to B;Meanwhile the first middle die sleeve (3), the height of minimum die sleeve (4) are also equal
Equal to B;
The thickness for defining maximum die sleeve (2) is C, then the thickness of the first packing ring (5) is also C;
The thickness for defining minimum die sleeve (4) is D, then the thickness of minimum packing ring (6) is also D;
The upright projection of the base (7) is rounded, and the circular diameter is more than (2C+2D+E).
Preferably, a kind of multi-level combination graphite jig available for more sample sizes hot pressed sinterings of the invention,
A diameter of φ 175mm of bottom (7b);A diameter of φ 160mm of pedestal (1a).
Preferably, a kind of multi-level combination graphite jig available for more sample sizes hot pressed sinterings of the invention,
A cylinder shape groove is also provided with the top of pedestal (1a);A diameter of 100mm of the cylinder shape groove;Depth is 5mm;
A cylinder shape groove is also provided with the bottom surface of bottom (7b);A diameter of 100mm of the cylinder shape groove;Depth is
5mm。
Preferably, a kind of multi-level combination graphite jig available for more sample sizes hot pressed sinterings of the invention,
It is 30mm that pedestal (1a), the thickness of bottom (7b), which are,.
Preferably, a kind of multi-level combination graphite jig available for more sample sizes hot pressed sinterings of the invention,
The value of the B is that 120mm, E value are 50mm;The value of the C is that 12.5mm, D value are 12.5mm.
Preferably, a kind of multi-level combination graphite jig available for more sample sizes hot pressed sinterings of the invention,
As a diameter of φ 175mm of bottom (7b);A diameter of φ 160mm of pedestal (1a), the value that the value of the B is 120mm, E
Value for 50mm, the C is 12.5mm, D value when being 12.5mm;The external diameter of maximum die sleeve (2) is 150mm, internal diameter is
100mm。
Preferably, a kind of multi-level combination graphite jig available for more sample sizes hot pressed sinterings of the invention,
The surface roughness of each part is less than or equal to 5 μm.
A kind of multi-level combination graphite jig available for more sample sizes hot pressed sinterings of the invention, graphite jig are removable
Unload, can be individually replaced, and the combination of mould can be adjusted at any time according to the size of sample, and then required size will
Ask.
A kind of multi-level combination graphite jig available for more sample sizes hot pressed sinterings of the invention, multilayer die sleeve can have
Effect ensures the uniformity of temperature in sintering process.
A kind of multi-level combination graphite jig available for more sample sizes hot pressed sinterings of the invention, two or more packing rings
Inside/outside diameter size and the size of two or more die sleeves of internal layer correspond, especially thickness.
Material therefor of the present invention is high strength graphite common on the market.
Advantage of the present invention:
1. the present invention can meet prepared by the hot pressed sintering of different sample sizes.
2. designed mould strength is higher in the present invention, service life can be significantly improved during use.
3. the present invention can improve mould service efficiency, effectively save cost of investment.
Brief description of the drawings
Fig. 1 is the multi-level combination graphite mo(u)ld available for more sample sizes hot pressed sinterings designed by the present embodiment 1,2,3
The structural representation of tool.
Marked in figure:1st, seaming chuck;2nd, maximum die sleeve;3rd, middle die sleeve;4th, minimum die sleeve;5th, large washer;6th, small washer;
7th, mold base.Ruler units are mm in Fig. 1.
Embodiment
With reference to the accompanying drawings and detailed description, to a kind of multilayer available for more sample sizes hot pressed sinterings of the invention
The design method of secondary combination graphite jig is further described.
As shown in Figure 1:The graphite jig includes seaming chuck (1), maximum die sleeve (2), the first middle die sleeve (3), minimum
Die sleeve (4), the first packing ring (5), minimum packing ring (6), base (7);
The maximum die sleeve (2), the first middle die sleeve (3), minimum die sleeve (4), the first packing ring (5), minimum packing ring (6) are equal
In annulus cylindricality;
The base (7) is made up of projection (7a) and bottom (7b), and the height for defining projection (7a) is A, and A
Value be 30mm;
First packing ring (5), the consistency of thickness of minimum packing ring (6), and it is equal to A=30mm equal to thickness;
The seaming chuck (1) is made up of pedestal (1a) and projection (1b);The height for defining projection (1b) is B=
120mm, a diameter of E=50mm, then the height of maximum die sleeve (2) be also equal to B=120mm;Meanwhile the first middle die sleeve (3), most
The height of small die sleeve (4) is also equal to B=120mm;
The thickness for defining maximum die sleeve (2) is C=12.5mm, then the thickness of the first packing ring (5) is also C=12.5mm;
The thickness for defining minimum die sleeve (4) is D=12.mm, then the thickness of minimum packing ring (6) is also D=12.5mm;
The upright projection of the base (7) is rounded, and circular a diameter of 175mm is more than (2C+2D+E).
A diameter of φ 175mm of bottom (7b);A diameter of φ 160mm of pedestal (1a).
A cylinder shape groove is also provided with the top of pedestal (1a);A diameter of 100mm of the cylinder shape groove;Depth is
5mm;
A cylinder shape groove is also provided with the bottom surface of bottom (7b);A diameter of 100mm of the cylinder shape groove;Depth is
5mm。
It is 30mm that pedestal (1a), the thickness of bottom (7b), which are,.
The external diameter of maximum die sleeve (2) is 150mm, internal diameter 100mm;
The external diameter of minimum die sleeve (4) is 100mm, internal diameter 50mm;
The surface roughness of designed each part, which is respectively less than, is equal to 5 μm.
Concrete structure is as shown in Figure 1.
Embodiment 1
φ 50mm sample is prepared, it is necessary to remove back seat gasket 5 and 6, by three die sleeves 2,3 and 4 fit by different level, you can
For the hot pressed sintering of φ 50mm samples.
Embodiment 2
The sample for preparing φ 100mm is such as sintered, it is necessary to remove back seat gasket 5, by three die sleeves 2,3 and 4 fit by different level,
The hot pressed sintering of φ 100mm samples can be used for.
Embodiment 3
Sintering prepares φ 150mm sample, it is necessary to use back seat gasket 5 and 6 simultaneously, by three die sleeves 2,3 and 4 by different level
Fit, you can for the hot pressed sintering of φ 150mm samples.
Compared with prior art, major advantage is the hot pressed sintering system that the present invention can meet different sample sizes to the present invention
Standby, the higher intensity of mould can make it significantly reduce loss, effectively save cost of investment in use.
Claims (7)
- A kind of 1. multi-level combination graphite jig available for more sample sizes hot pressed sinterings, it is characterised in that:The graphite mo(u)ld Tool includes seaming chuck (1), maximum die sleeve (2), the first middle die sleeve (3), minimum die sleeve (4), the first packing ring (5), minimum packing ring (6), base (7);The maximum die sleeve (2), the first middle die sleeve (3), minimum die sleeve (4), the first packing ring (5), minimum packing ring (6) are in circle Ring-cylindrical;The base (7) is made up of projection (7a) and bottom (7b), and the height for defining projection (7a) is A;First packing ring (5), the consistency of thickness of minimum packing ring (6), and it is equal to A equal to thickness;The seaming chuck (1) is made up of pedestal (1a) and projection (1b);The height for defining projection (1b) is B, diameter For E, then the height of maximum die sleeve (2) is also equal to B;Meanwhile the first middle die sleeve (3), the height of minimum die sleeve (4) are also equal to B;The thickness for defining maximum die sleeve (2) is C, then the thickness of the first packing ring (5) is also C;The thickness for defining minimum die sleeve (4) is D, then the thickness of minimum packing ring (6) is also D;The upright projection of the base (7) is rounded, and the circular diameter is more than (2C+2D+E).
- 2. a kind of multi-level combination graphite jig available for more sample sizes hot pressed sinterings according to claim 1, its It is characterised by:A diameter of φ 175mm of bottom (7b);A diameter of φ 160mm of pedestal (1a).
- 3. a kind of multi-level combination graphite jig available for more sample sizes hot pressed sinterings according to claim 1, its It is characterised by:A cylinder shape groove is also provided with the top of pedestal (1a);A diameter of 100mm of the cylinder shape groove;Depth is 5mm;A cylinder shape groove is also provided with the bottom surface of bottom (7b);A diameter of 100mm of the cylinder shape groove;Depth is 5mm.
- 4. a kind of multi-level combination graphite jig available for more sample sizes hot pressed sinterings according to claim 1, its It is characterised by:It is 30mm that pedestal (1a), the thickness of bottom (7b), which are,.
- 5. a kind of multi-level combination graphite jig available for more sample sizes hot pressed sinterings according to claim 1, its It is characterised by:The value of the B is that 120mm, E value are 50mm;The value of the C is that 12.5mm, D value are 12.5mm.
- 6. a kind of multi-level combination graphite jig available for more sample sizes hot pressed sinterings according to claim 1, its It is characterised by:As a diameter of φ 175mm of bottom (7b);A diameter of φ 160mm of pedestal (1a), the value of the B are When the value that 120mm, E value are 50mm, the value of the C is 12.5mm, D is 12.5mm;The external diameter of maximum die sleeve (2) is 150mm, internal diameter 100mm.
- 7. a kind of multi-level combination graphite jig available for more sample sizes hot pressed sinterings according to claim 1, its It is characterised by:The surface roughness of each part is less than or equal to 5 μm.
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108481525A (en) * | 2018-05-21 | 2018-09-04 | 浙江庄辰建筑科技有限公司 | A kind of prefabricated post of size adjustable |
-
2017
- 2017-06-19 CN CN201720712201.3U patent/CN206780611U/en active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108481525A (en) * | 2018-05-21 | 2018-09-04 | 浙江庄辰建筑科技有限公司 | A kind of prefabricated post of size adjustable |
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