CN101799385B - Miniature heating pressurizer for experiments - Google Patents
Miniature heating pressurizer for experiments Download PDFInfo
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- CN101799385B CN101799385B CN201010145831XA CN201010145831A CN101799385B CN 101799385 B CN101799385 B CN 101799385B CN 201010145831X A CN201010145831X A CN 201010145831XA CN 201010145831 A CN201010145831 A CN 201010145831A CN 101799385 B CN101799385 B CN 101799385B
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- slide block
- die sleeve
- cavity
- locating slot
- circular hole
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Abstract
The invention discloses a miniature heating pressurizer for experiments. The whole set of device consists of an outer die and an inner die; the outer die consists of an upper part (1) and a lower part (2); a slide block (3) which can move along the axial direction and is in close fit is arranged in the outer die; the lower part of the slide block is provided with a positioning groove; the lower part comprises a cavity in which the inner die is arranged; the upper part of the lower bottom surface in the cavity is provided with a positioning groove; the inner die consists of an upper pressure lever (4), a lower pressure lever (5) and a round-hole die sleeve (6); the pressure head of the upper pressure lever is matched with the positioning groove on the lower part of the slide block of the outer die; the pressure head of the lower pressure lever is matched with the positioning groove on the upper part of the lower bottom surface in the cavity; and the lever bodies are arranged in the round-hole die sleeve and can move along the central axis of the round-hole die sleeve. When the miniature heating pressurizer is used, the outer die seals injected gas, the gas in the outer die is expanded during heating because of the principle of thermal expansion, and the pressure is transferred to the pressure lever of the inner die through the slide block in the outer die and further transferred to a miniature sample (7) to be prepared, so that the miniature sample is always subjected to the action of external pressure when generating reaction denaturation in the heating process of the miniature sample. The whole set of device has the advantages of simple structure, small volume, easy processing, convenient assembly, and convenient use in various heating environments in laboratories.
Description
Technical field
The invention provides a kind of Miniature heating pressurizer for experiments, belong to the testing of materials equipment technical field.
Background technology
In the fields such as material science, various attributes researches to material all carry out small sample usually, its process is: the small-sized sample of starting material being made disk shape or square shape, again by means such as heating make that its integral body reacts, sex change or sinter molding, obtain the small-sized sample of various detected materials, again it is carried out various test analysis at last, to obtain the various property parameters of specimen material.This heat treated again process of first moulding that is used for preparing small-sized sample becomes one of indispensable means of scientific research.
The classic method for preparing small-sized sample be earlier by mechanical means with the starting material compacting or be machined into disk shape or the small-sized sample of square shape, put into again and burn boat and under vacuum or protective atmosphere, do not have the pressure heat treated.The small-sized sample that these methods are prepared owing to be not subjected to extraneous pressure in its heat denatured process, makes that the small-sized sample interior solid degree of preparing is relatively low, and some performance parameters also descend to some extent than theoretical value.Therefore,, can provide abundanter treatment conditions for the preparation of small-sized sample in heating, obtain better property parameters if a kind of processing means that can pressurize are arranged.Discharge plasma sintering technique (SPS) is though solved this problem, can realize while the treatment effect that pressurizes, heats, obtain the small-sized sample of inner structure densification, but its equipment volume is huge, involve great expense, the cost of unit sample preparation is higher, and the domestic unit that has SPS equipment seldom, the very inconvenience of preparation small sample can't be extensive use of in testing laboratory.
Therefore, need a kind ofly can conveniently in testing laboratory to use, small-sized supercharging device with low cost, in the small-sized sample of heating, provide the external pressure condition for it.
Summary of the invention
The purpose of this invention is to provide a kind of in heating the midget plant of supercharging automatically, this device can make things convenient for use, with low cost in testing laboratory, can be when small sample be carried out heat treated, not by the external strength work done, for the small sample of wherein placing provides pressure condition.
Its technical scheme is:
A kind of Miniature heating pressurizer for experiments is characterized in that: package unit is made up of outer (Fig. 1), interior (Fig. 2) two kinds of moulds; Outer mold is made up of (2) two parts under last (1), the top outer wall has air hole, be connected to the breather valve of overvoltage protection, there is axially displaceable close-fitting slide block (3) inside, the slide block bottom is provided with locating slot, the lower part comprises a cavity, and cavity inside is placed inner mold, and bottom surface top is provided with locating slot in the cavity; Inner mold is made up of (5) two depression bars under last (4) and circular hole die sleeve (6), the locating slot coupling of the pressure head of upperpush rod and outer mold slide block bottom, the locating slot on bottom surface top coupling in the pressure head of down-pressed pole and the cavity, shaft places in the circular hole die sleeve, and can move along circular hole die sleeve central shaft.
Outer mold seals injecting gas, its internal gas during heating is because principle of expanding with heat and contracting with cold produces expansion, pressure is passed to the depression bar of inner mold by its inner slide block, and then pass to small-sized sample (7) to be prepared, make the effect that is subjected to ambient pressure in its sex change that in heating process, reacts all the time.
Described Miniature heating pressurizer for experiments, its inner mold is made up of up and down two column type depression bars and circular hole die sleeve, up and down the pressure head of two depression bars respectively with the outer mold slide block on locating slot and the coupling of the locating slot in the cavity, shaft and die sleeve mate, and see Fig. 2.
Described Miniature heating pressurizer for experiments, its inner mold is by two cubic type depression bars, circular hole die sleeve and modules transition (8) are formed up and down, up and down the pressure head of two depression bars respectively with the outer mold slide block on locating slot and the locating slot in cavity coupling, shaft is seen Fig. 3 by module and die sleeve coupling transition.
Principle of work of the present invention is: earlier starting material are made sheet or bulk by modes such as machinings, closely filling is in inner mold, and fix with two depression bars up and down, integral body is put into outer mold again, the pressure head that makes depression bar respectively with outer mold up and down two-part locating slot cooperate, the top and the bottom with outer mold close up again, with jig card jail, by being installed in the gas of the breather valve feeding certain pressure on the outer mold, airtight at last.Whole device can be put into the heating zone during work, make its inside and outside thermally equivalent, follow the rising of temperature, when gases are heated, they expand, the slide block that promotes in the outer mold moves to the inner mold direction, pressure is delivered on the small-sized sample by the inner module depression bar, makes small-sized sample under the pressurized condition, carry out the heat denatured reaction.Because inner slide block need use railway grease to keep impermeability and lubricity, these railway grease have the requirement of serviceability temperature, and therefore the small-sized sample of heat denatured reaction takes place in its serviceability temperature scope, all can use this device to be prepared.
The present invention compared with prior art has following advantage:
1. can when heating, provide pressure environment for small-sized sample;
2. reduce the heat treated experimentation cost of pressurization greatly;
3. package unit is simple in structure, and volume is small and exquisite, is easy to processing, is convenient to assembling, can conveniently be used for the various heating environments of testing laboratory.
Description of drawings
Fig. 1 is the outer mold three-view diagram of the embodiment of the invention;
Wherein 1, outer mold top 2, outer mold lower part 3, slide block
Fig. 2 is inner mold (column type depression bar) three-view diagram of the embodiment of the invention;
Wherein 4, inner mold upperpush rod 5, inner mold down-pressed pole 6, circular hole die sleeve
7, small-sized sample;
Fig. 3 is inner mold (the cubic type depression bar) three-view diagram of the embodiment of the invention;
Wherein 4, inner mold upperpush rod 5, inner mold down-pressed pole 6, circular hole die sleeve
7, small-sized sample 8, the transition module
Fig. 4 is with the cut-open view after outer mold shown in Figure 1 and the inner mold shown in Figure 2 assembling.
Wherein 1, outer mold top 2, outer mold lower part 3, slide block
4, inner mold upperpush rod 5, inner mold down-pressed pole 6, circular hole die sleeve
7, small-sized sample
Embodiment
Embodiment 1
A kind of Miniature heating pressurizer for experiments of the present invention is seen Fig. 1, Fig. 2 and Fig. 4
The outer mold top 1 shown in Figure 1 and the radial cross-section of outer mold lower part 2 all are circular ring type; Wherein an air hole is arranged at the top on outer mold top 1, and the breather valve of over-voltage protecting function is installed; A close-fitting slide block 3 is contained in the inside on outer mold top 1, can axially moving reciprocatingly along outer mold; After outer mold top 1 and outer mold lower part 2 closures, available jig is along the groove card jail of its periphery.
During enforcement, earlier small-sized sample starting material are processed into the sequin of size and inner mold coupling, be put between 5 two column type depression bars of inner mold upperpush rod 4 and inner mold down-pressed pole, closely be filled in the inner mold die sleeve 6, form an integral body, shaft and die sleeve coupling as shown in Figure 2, wherein promptly become small-sized sample 7 after the reaction of starting material heat denatured.Whole inner mold is embedded in the outer mold, and as shown in Figure 4, the upperpush rod pressure head of inner mold and down-pressed pole pressure head cooperate with the two-part up and down locating slot of outer mold respectively, remerge outer mold two parts and with the groove card jail of jig along its periphery up and down.Breather valve by top, outer mold top inwardly injects the gas that needs pressure, valve-off, closed gas at last.During work whole device is put into the heating zone, make its thermally equivalent, follow the rising of temperature, when gases are heated, they expand, and the slide block 3 that promotes in the outer mold produces the trend that moves downward, pressure is delivered on the small-sized sample 7 by inner module upperpush rod 4, when promptly heating, small-sized sample 7 axial expansions are subjected to the restriction of inner mold upperpush rod 4 and down-pressed pole 5, and expansion radially is subjected to the restriction of circular hole die sleeve 6, realized the effect of pressurized in the heating process, and pressure is followed the rising of temperature and is raise.
Owing to need to use railway grease to keep impermeability and lubricity between slide block 3 and the outer mold top 1, and the common railway grease in market can be used for 400 ℃, the railway grease that also has bibliographical information newly to develop can be used for 600 ℃ for a long time, short-term is used for 800 ℃, therefore at these small-sized samples that heat denatured reaction takes place below the temperature, all can use this device to be prepared.
If small-sized sample starting material are processed into blockage 7, can adopt method shown in Figure 3, small-sized sample starting material are put between inner mold upperpush rod 4 and 5 two cubic type depression bars of down-pressed pole, closely be filled in the module 8 transition, place circular hole die sleeve 6 again, form an integral body, see Fig. 3.Other get final product with embodiment 1.
Claims (3)
1. Miniature heating pressurizer for experiments is characterized in that: package unit is made up of outer, interior two kinds of moulds; Outer mold is made up of two parts up and down, the top outer wall has air hole, be connected to the breather valve of overvoltage protection, there is axially displaceable close-fitting slide block inside, the slide block bottom is provided with locating slot, the lower part comprises a cavity, and cavity inside is placed inner mold, and bottom surface top is provided with locating slot in the cavity; Inner mold is by up and down two depression bars and circular hole die sleeve are formed, the locating slot coupling of the pressure head of upperpush rod and outer mold slide block bottom, the locating slot on bottom surface top coupling in the pressure head of down-pressed pole and the cavity, shaft places in the circular hole die sleeve, and can move along circular hole die sleeve central shaft.
2. Miniature heating pressurizer for experiments according to claim 1, it is characterized in that, described inner mold is by up and down two column type depression bars and circular hole die sleeve are formed, up and down the pressure head of two depression bars respectively with the outer mold slide block on locating slot and the locating slot in cavity coupling, shaft mates with the circular hole die sleeve.
3. Miniature heating pressurizer for experiments according to claim 1, it is characterized in that, described inner mold is by two cubic type depression bars, circular hole die sleeve and modules transition (8) are formed up and down, up and down the pressure head of two depression bars respectively with the outer mold slide block on locating slot and the locating slot in cavity coupling, shaft by transition module mate with the circular hole die sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010145831XA CN101799385B (en) | 2010-04-09 | 2010-04-09 | Miniature heating pressurizer for experiments |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010145831XA CN101799385B (en) | 2010-04-09 | 2010-04-09 | Miniature heating pressurizer for experiments |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101799385A CN101799385A (en) | 2010-08-11 |
| CN101799385B true CN101799385B (en) | 2011-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010145831XA Expired - Fee Related CN101799385B (en) | 2010-04-09 | 2010-04-09 | Miniature heating pressurizer for experiments |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102529145A (en) * | 2012-01-08 | 2012-07-04 | 西北工业大学 | Reusable thermal pressure mould |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10280945A (en) * | 1997-04-02 | 1998-10-20 | Zexel Corp | Exhaust emission control device for internal combustion engine |
| CN100493897C (en) * | 2006-12-16 | 2009-06-03 | 山东理工大学 | Apparatus for producing pressure by using temperature caused expansion and contraction |
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2010
- 2010-04-09 CN CN201010145831XA patent/CN101799385B/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102529145A (en) * | 2012-01-08 | 2012-07-04 | 西北工业大学 | Reusable thermal pressure mould |
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| CN101799385A (en) | 2010-08-11 |
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