CN206201533U - A kind of device for increasing synthesis CBN with heating bushing pipe compact density - Google Patents
A kind of device for increasing synthesis CBN with heating bushing pipe compact density Download PDFInfo
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- CN206201533U CN206201533U CN201621171396.7U CN201621171396U CN206201533U CN 206201533 U CN206201533 U CN 206201533U CN 201621171396 U CN201621171396 U CN 201621171396U CN 206201533 U CN206201533 U CN 206201533U
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- midair
- stem
- bushing pipe
- die mandrel
- parallels
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Abstract
The utility model discloses a kind of device for increasing synthesis CBN with heating bushing pipe compact density, including die mandrel in midair, mould cylinder sleeve, hard alloy parallels, slip stem and hollow mould base, described hollow mould base center is provided with slip stem, hard alloy parallels is cased with described slip stem, the bottom for sliding stem is provided with die mandrel in midair, the bottom surface of described die mandrel in midair is provided with a diameter slightly larger than the groove for sliding stem, and described mould cylinder set is nested in the outside of die mandrel in midair.The utility model can with low cost by way of synthesize CBN required for high density bushing pipe, process velocity is fast, substantially reduces the labour intensity of workman, saves production cost.
Description
Technical field
The utility model is related to superhard material high-pressure synthesis technical field, and a kind of especially increase CBN synthesis is served as a contrast with heating
The device of pipe compact density.
Background technology
In CBN（Cubic boron nitride）Building-up process in, the preparation of generally heating bushing pipe is mixed by dolomite and carbon dust
Together, then suppressed on four-column press and formed, but the cubic boron nitride synthesis heating bushing pipe of compacting is that one end occur
Density is high, and one end density is low because at present four-column hydraulic press use one side compression, that is, pressure from above pressure or
From following pressure, and the other end uses transfixion, and it is higher to will result in the interface pressure being first under pressure, as pressure is past
In lower transmittance process, slowly lose, during to the other end, pressure is just much smaller with respect to the pressure of rigid connection contravention, thus causes
There is two ends Density inhomogeneity situation in one synthesis post.Heating bushing pipe is put into transmission medium again passes through cubic hinge press high temperature
During high-pressure synthesis, equally can be because the Density inhomogeneity of synthesis post causes to synthesize the cubic boron nitride material of the upper and lower ends growth of post
It is inconsistent.The synthesis per unit area yield situation of cubic boron nitride is directly affects, the utility model has been invented for this increases cubic boron nitride
Heat the device of bushing pipe compact density.
Utility model content
The utility model purpose is to provide a kind of new simple structure, cubic boron nitride synthesis heating lining with low cost
Cast apparatus structure, in the case where ensureing to use pressure consistent, synthesis post two ends even density is consistent, and later period maintenance is used
Easily.
In order to reach object above, the utility model uses following technical scheme：One kind increases synthesis CBN heating bushing pipes
The device of compact density, including die mandrel, mould cylinder sleeve, hard alloy parallels, slip stem and hollow mould base in midair,
Described hollow mould base center is provided with slip stem, and hard alloy parallels is cased with described slip stem, slides stem
Bottom be provided with die mandrel in midair, the bottom surface of described die mandrel in midair is provided with a diameter slightly larger than sliding stem
Groove, described mould cylinder set is nested in the outside of die mandrel in midair.
Further, described hard alloy parallels is two-sided boss structure.
The utility model produce beneficial effect be：The device can with low cost by way of synthesize CBN required for
High density bushing pipe, process velocity is fast, substantially reduces the labour intensity of workman, saves production cost.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Specific embodiment
The utility model is further described below in conjunction with the accompanying drawings.
As shown in figure 1, the utility model is to increase the device that bushing pipe compact density is heated in cubic boron nitride synthesis, including
In midair die mandrel 1, mould cylinder sleeve 2, hard alloy parallels 4, slide stem 5 and hollow mould base 6, described hollow mould
Through stem 5 is slided in the centre bore of base 6, to slide and be cased with hard alloy parallels 4 on stem 5.Wherein hard alloy parallels 4 is
Two-sided boss structure, concrete shape is patty, and middle part boss is cylinder, and height is provided with cylinder middle section less than middle part
The concentric cylinder of boss height.In die mandrel 1 in midair is inserted on the top for sliding stem 5, the bottom surface of die mandrel 1 sets in midair
There is the cylinder shape groove for being available for vigorously moving the insertion of stem 5, in midair the boss of the bottom surface radius of die mandrel 1 and hard alloy pad 4
Radius is identical.Mould cylinder sleeve 2 is provided with outer and hard alloy pad 4 the top for sliding stem 5, stem 5, hard alloy is slided
Batch mixing powder 3 is put into pad 4, mould cylinder sleeve 2 and the annular space that die mandrel 1 is formed in midair.
Before heating bushing pipe is prepared, it is necessary first to prepare CBN synthesis heating bushing pipe batch mixing：200 mesh dolomites are taken respectively
It is well mixed according to certain ratio with 100 mesh carbon dusts, is fitted into standby in the valve bag for sealing；Then the batch mixing that will be mixed,
The precompressed on isostatic pressed press, the air of the inside is discharged；The batch mixing that will finally press through in advance is crushed on disintegrating machine, is crushed
It is standby into the following powder of 30 mesh.
Batch mixing powder 3 is put into mould cylinder sleeve 2, the batch mixing powder 3 that will be put into the inside of mould cylinder sleeve 2 with stirring rod is stirred
Uniformly, the inside of mould cylinder sleeve 2 will be placed on by die mandrel 1 in midair, and whole set of die will be put into above cold press and is suppressed, pressurize 10~
15s.First hard alloy parallels 4 is removed from hollow mold base 6 after the completion of pressurize, whole set of die is put into colds pressing again
Suppressed above machine, 10~15s of pressurize, removed hollow mould base 6 on last whole die device, then mould unloading, it is whole outer
Bushing pipe just on stem 5 is slided, only need to be removed gently.
Claims (2)
- It is 1. a kind of to increase the synthesis CBN devices for heating bushing pipe compact density, it is characterised in that：Including die mandrel in midair, mould Tool cylinder sleeve, hard alloy parallels, slip stem and hollow mould base, described hollow mould base center is provided with slide cores Post, is cased with hard alloy parallels on described slip stem, the bottom for sliding stem is provided with die mandrel in midair, it is described in midair The bottom surface of die mandrel is provided with a diameter slightly larger than the groove for sliding stem, and described mould cylinder set is nested in mould in midair The outside of plug.
- 2. a kind of increase according to claim 1 synthesizes the CBN devices for heating bushing pipe compact density, it is characterised in that： Described hard alloy parallels is two-sided boss structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621171396.7U CN206201533U (en) | 2016-10-26 | 2016-10-26 | A kind of device for increasing synthesis CBN with heating bushing pipe compact density |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621171396.7U CN206201533U (en) | 2016-10-26 | 2016-10-26 | A kind of device for increasing synthesis CBN with heating bushing pipe compact density |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206201533U true CN206201533U (en) | 2017-05-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201621171396.7U Active CN206201533U (en) | 2016-10-26 | 2016-10-26 | A kind of device for increasing synthesis CBN with heating bushing pipe compact density |
Country Status (1)
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| CN (1) | CN206201533U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109968731A (en) * | 2019-04-10 | 2019-07-05 | 河南黄河旋风股份有限公司 | Powder pressing at tubular products mold and tubular products manufacturing method |
-
2016
- 2016-10-26 CN CN201621171396.7U patent/CN206201533U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109968731A (en) * | 2019-04-10 | 2019-07-05 | 河南黄河旋风股份有限公司 | Powder pressing at tubular products mold and tubular products manufacturing method |
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