CN206779459U - A kind of sintering press-powder instrument - Google Patents
A kind of sintering press-powder instrument Download PDFInfo
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- CN206779459U CN206779459U CN201720703598.XU CN201720703598U CN206779459U CN 206779459 U CN206779459 U CN 206779459U CN 201720703598 U CN201720703598 U CN 201720703598U CN 206779459 U CN206779459 U CN 206779459U
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Abstract
Sintering press-powder instrument of the present utility model, for the powder pressure to sintering mold intracavitary, the press-powder instrument is the column with cavity, press-powder tool cover presses outside the chipware in mold cavity to powder, the cavity is from top to bottom divided into the first cavity and the second cavity, and the shape and diameter of the second cavity are engaged with the shape and diameter of the chipware respectively；The diameter of first cavity is more than the diameter of the second cavity, and the first cavity and the second cavity junction form ladder.First cavity and the second cavity is cylindric or prism-shaped.The press-powder upper tool part outer peripheral face has the boss radially extended along cylinder.A kind of sintering press-powder instrument of the present utility model, the diameter of first cavity is more than the diameter of the second cavity, certain avoiding space between first cavity and chipware be present, so that press-powder instrument is easy to take out outward after chipware is pressed into, thus inside will not be caused to have suppressed fixed powder and loosened again.
Description
Technical field
It the utility model is related to sintering technology field, and in particular to a kind of sintering press-powder instrument.
Background technology
As shown in figure 1, sintered body is manufactured using mould 1, such as during sintered diamond roller, it is necessary first in mold cavity 2
Interior addition metallurgical powder, then pressurizeed using forcing press 5 on press-powder instrument 3, press-powder instrument 3 is by the metallurgical powder in mold cavity 2
End compacting forms powder compact, finally carries out high temperature sintering again.
It is correspondingly, right in graphite jig chamber 2 because roller center typically has mounting hole in sintered diamond roller
Position is answered to be provided with entity graphite chipware 9.Press-powder instrument 3 has cavity 4, and press-powder instrument 3 is enclosed on outside graphite chipware 9, and right
Metallurgical powder pressure in mold cavity 2.
From top to bottom diameter is identical for the cavity of existing press-powder instrument 3, excessive with the contact area of graphite chipware 9, is easily pressing
Be difficult to take out outward after entering, and strength take out can cause it is internal suppressed fixed powder and loosened again, metallurgical powder is risen
Less than the effect of completely densified.
Utility model content
The technical problems to be solved in the utility model is that existing sintering press-powder instrument is pressed into after mold cavity it is difficult to take out, by force
Power, which is taken out, can cause inside to suppress the problem of fixed powder loosens again.
The purpose of this utility model is to provide a kind of sintering press-powder instrument, and it is empty to there is certain avoidance between chipware
Between so that press-powder instrument is easy to take out outward after chipware is pressed into, thus inside will not be caused to have suppressed fixed powder
Loosen again.
Sintering press-powder instrument of the present utility model, for the powder pressure to sintering mold intracavitary, the press-powder instrument
For the column with cavity, press-powder tool cover presses outside the chipware in mold cavity to powder, and the cavity from top to bottom divides
For the first cavity and the second cavity, the shape and diameter of the second cavity are engaged with the shape and diameter of the chipware respectively；
The diameter of first cavity is more than the diameter of the second cavity, and the first cavity and the second cavity junction form ladder.
First cavity and the second cavity is cylindric or prism-shaped.
The press-powder upper tool part outer peripheral face has the boss radially extended along cylinder.
Relative to prior art, technique effect of the present utility model is a kind of sintering press-powder instrument of the present utility model,
The diameter of first cavity is more than the diameter of the second cavity, certain avoiding space between the first cavity and chipware be present so that pressure
Powder instrument is easy to take out outward after chipware is pressed into, thus inside will not be caused to have suppressed fixed powder and loosened again.
Brief description of the drawings
Fig. 1 is the schematic diagram of the press-powder instrument pressed powder of prior art（Including forcing press and graphite jig chamber）；
Fig. 2 is the structural representation of press-powder instrument of the present utility model；
Fig. 3 is the enlarged drawing of the part marked as a in Fig. 2；
Fig. 4 is partial schematic diagram of the press-powder tool cover of the present utility model on chipware.
Embodiment
As shown in Figures 2 to 4, the sintering press-powder instrument 3 of the present embodiment, for being applied to the powder of sintering mold intracavitary
Pressure, press-powder instrument 3 are the column with cavity, and press-powder instrument 3 is enclosed on outside the chipware 9 in mold cavity to press to powder, cavity
From top to bottom be divided into the first cavity 41 and the second cavity 42, the shape and diameter of the second cavity 42 respectively with the shape of chipware 9 and
Diameter is engaged；The diameter of first cavity 41 is more than the diameter of the second cavity 42, the first cavity 41 and the junction of the second cavity 42
Ladder is formed, the first cavity 41 forms avoiding space A with chipware 9.
First cavity 41 and the second cavity 42 is cylindric or prism-shaped.When chipware 9 is cylindric, the He of the first cavity 41
Second cavity 42 is cylindric.When chipware 9 is prism-shaped, the first cavity 41 and the second cavity 42 are prism-shaped.
The upper periphery face of press-powder instrument 3 has the boss 6 radially extended along cylinder, using the bottom of boss 6 as the point of application,
Tapped upwards in boss bottom, to take out press-powder instrument 3.
, on the one hand can be farthest because the diameter of the second cavity 42 is engaged with the diameter of chipware 9 in pressed powder process
The powder of the periphery of chipware 9 is compacted, on the other hand can play guiding function to the stroke of press-powder instrument 3, to realize preferably pressure
Powder effect.
When press-powder terminates to need to take out press-powder instrument 3, using the boss 6 in the upper periphery face of press-powder instrument 3 as the point of application, to
Upper taking-up press-powder instrument 3.Due to having avoiding space A, the cavity of press-powder instrument 3 and chipware 9 between the first cavity 41 and chipware 9
Contact area is reduced, and is equal to and is reduced contact friction, therefore press-powder instrument 3 is easy to take out from chipware 9, avoids strength
Taking-up causes inside to suppress the problem of fixed powder loosens again, and metallurgical powder has preferable consolidation effect.
In summary, a kind of sintering press-powder instrument of the present utility model, the diameter of the first cavity are more than the second cavity
Diameter, certain avoiding space between the first cavity and chipware be present so that press-powder instrument is easy to past after chipware is pressed into
Outer taking-up, thus inside will not be caused to have suppressed fixed powder and loosened again.
The above is only preferred embodiment of the present utility model, it is noted that for those skilled in the art,
Under the premise of the utility model general idea is not departed from, some changes and improvements can also be made, these should also be considered as this reality
With new protection domain.
Claims (3)
1. a kind of sintering press-powder instrument, for the powder pressure to sintering mold intracavitary, the press-powder instrument is with cavity
Column, press-powder tool cover outside the chipware in mold cavity to powder press, it is characterised in that the cavity from top to bottom divides
For the first cavity and the second cavity, the shape and diameter of the second cavity are engaged with the shape and diameter of the chipware respectively；
The diameter of first cavity is more than the diameter of the second cavity, and the first cavity and the second cavity junction form ladder.
2. sintering press-powder instrument according to claim 1, it is characterised in that first cavity and the second cavity are
Cylindric or prism-shaped.
3. sintering press-powder instrument according to claim 1, it is characterised in that the press-powder upper tool part outer peripheral face has
The boss radially extended along cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720703598.XU CN206779459U (en) | 2017-06-16 | 2017-06-16 | A kind of sintering press-powder instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720703598.XU CN206779459U (en) | 2017-06-16 | 2017-06-16 | A kind of sintering press-powder instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206779459U true CN206779459U (en) | 2017-12-22 |
Family
ID=60717698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720703598.XU Active CN206779459U (en) | 2017-06-16 | 2017-06-16 | A kind of sintering press-powder instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206779459U (en) |
-
2017
- 2017-06-16 CN CN201720703598.XU patent/CN206779459U/en active Active
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