CN206926049U - A kind of two-tube explosive compaction ceramic powders device - Google Patents
A kind of two-tube explosive compaction ceramic powders device Download PDFInfo
- Publication number
- CN206926049U CN206926049U CN201720812638.4U CN201720812638U CN206926049U CN 206926049 U CN206926049 U CN 206926049U CN 201720812638 U CN201720812638 U CN 201720812638U CN 206926049 U CN206926049 U CN 206926049U
- Authority
- CN
- China
- Prior art keywords
- tube
- explosive
- steel
- ceramic powders
- inner tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Powder Metallurgy (AREA)
- Press Drives And Press Lines (AREA)
Abstract
It the utility model is related to explosive compaction technical field, and in particular to a kind of two-tube explosive compaction ceramic powders device.A kind of two-tube explosive compaction ceramic powders device, limit and manage including main basal base, circular locating groove base, steel inner tube, steel outer tube and explosive, circular locating groove base is arranged on main basal base, and the circular groove at locating groove bottom, two-tube positioning boss, annular groove and powder charge pipe limitation boss are in concentric position；Steel inner tube is stuck in two-tube positioning boss inwall, and steel outer tube is enclosed on two-tube positioning boss outer wall, and explosive limits pipe clamp and limits boss inwall in powder charge pipe；The top and bottom of steel inner tube set a sealing-plug to be matched with steel inner tube respectively.Two-tube explosive compaction ceramic powders device of the present utility model can utilize low explosive to obtain higher-strength shock wave, improve sintered density, compactness and expand sintering range；Circular locating groove base ensure that concentricity, improve the uniformity of sintered density.
Description
Technical field
It the utility model is related to explosive compaction technical field, and in particular to a kind of two-tube explosive compaction ceramic powders device.
Background technology
Explosive powder compaction is also known as powder sintered or blast powder synthesis of exploding, and is to be burnt dusty material using explosion energy
Form a block or synthesize the technology general name of another material, be the huge energy discharged using explosive in very short time
Amount makes dusty material obtain high temperature, condition of high voltage, and relative motion occurs between particle, height is sintered out under various microcosmic sintering mechanisms
The application of high-temperature high-pressure reality principle occurs under shock wave adiabatic compression for compactness material, substantially porous material.Such as explode nanometer
It is blast synthetic technology used by polycrystalline diamond etc., is that graphite-phase is become into nano polycrystal Buddha's warrior attendant using explosion energy
Stone.Explosive compaction possesses voltage resistance, can sinter almost closely knit material, possess molten rapid cooling soon, be advantageous to keep powder
Excellent specific property, while the non-thermofusible such as Si3N4, SiC ceramics can be made to be sintered in the case where sintering aid need not be added.
Existing explosive compaction method be loaded onto in mould powder (such as graphite powder, graphite and metal mixed powder, graphite with
The mixed powder etc. of metal, resin), by forcing press precompressed, it is depressed into the voluminous powder that voidage is 10~25%
Body；Afterwards, the mould built with body of powder is placed on metallic plate (momentum export plate) and be placed under the film flying of destructor
The film flying of side, mould and destructor should maintain a certain distance (frame is high)；The detonator of destructor is lighted, is made in destructor
Explosive column blast, promote film flying to be hit with certain flying speed and comminuted powder compacts, produced inside powder high temperature,
High pressure, cause powder transient state phase transformation.Finally, the powder ash being scattered is reclaimed, and powder ash is screened, rinsed and with chemistry
Preparation carries out remaining non-phase transformation powder-processed, that is, obtains required product.
Explosive sintering is an important application of the explosion mechanics in field of material preparation, however, higher to hardness, non-hot melt
Property ceramic powders carry out explosive sintering needed for pressure it is higher, if this pressure is directly produced by explosive contact explositions, it is necessary to select
With the higher explosive of explosion velocity.However, when generally using single hose system at present, the impact acted on ceramic body is mainly by fried
The influence of medicine detonation rate, and after detonation rate exceedes a certain value, it will occur in ceramic body and be caused by informal Mach reflection
Mach hole phenomenon, explosion velocity too high the defects of also easily causing crackle and uneven radial stiffness, therefore single tube explosive compaction fills
The surge put is restricted, and two-tube explosive compaction can be produced in the case where explosive detonation speed is relatively low it is higher
Impulsive force, from improving surge and control for the angle of informal Mach reflection, two-tube explosive compaction is easier to obtain close
Solidity is high, the uniform sintered body of hardness.However, the installation cost of two-tube explosive compaction device is higher, structure is more complicated, its group
Reload request height, position inaccurate, easily cause cloth medicine inequality.
Utility model content
For overcome the deficiencies in the prior art, the utility model provides a kind of two-tube explosive compaction ceramic powders device,
During realizing ceramic powders explosive compaction, the sintered body of more high solidity is obtained using low explosive；Meanwhile this is filled
Put also and solve in the prior art that the assembling of explosive compaction device requires height, position inaccurate, sintered body is close caused by cloth medicine inequality
Spend uneven technical problem.
To achieve these goals, the utility model is achieved through the following technical solutions：
A kind of two-tube explosive compaction ceramic powders device, including main basal base, circular locating groove base, steel inner tube, steel
Outer tube and explosive limitation pipe processed, the circular locating groove base are arranged on main basal base, and circular locating groove base includes bottom
The annular two-tube positioning boss outside circular groove, groove, annular groove and ring outside two-tube positioning boss among seat
Powder charge pipe limitation boss outside connected in star, the circular groove, annular two-tube positioning boss, annular groove and the limitation of powder charge pipe
Boss is in concentric position；The steel inner tube is stuck in two-tube positioning boss inwall, and the steel outer tube is enclosed on two-tube positioning
Outer wall of boss, the explosive limitation pipe clamp is on powder charge pipe limitation boss inwall, steel inner tube, steel outer tube and explosive limitation pipe
In concentric position；The top and bottom of the steel inner tube set a sealing-plug to be matched with steel inner tube respectively,
One vacuum hole for being used to vacuumize wherein is set on the sealing-plug at top；The explosive limitation tube top portion is the circle that Open Side Down
Taper, conical upper end set a detonator utensil receiving opening.
Further, described circular locating groove base is made up of any material in wood or plastics.
Further, described circular locating groove base is integrated molding or spicing forming type.
Further, described main basal base forms for steel.
Further, some metals for being used to preventing during explosive compaction to produce Mach hole are set in the steel inner tube
Spacer block.
Further, the sealing-plug at the top of described steel inner tube is cone blocking.
The beneficial effects of the utility model：(1) two-tube explosive compaction ceramic powders device of the present utility model can utilize low
Detonation-rate explosive obtains higher-strength shock wave, improves sintered density；Meanwhile it is viscous to fly the generation under detonation pressure effect of pipe and inner tube
Knot, thicker steel bushing make back is sparse to be obviously reduced, and are advantageous to improve sintered body compactness and be evenly distributed and expand to sinter model
Enclose.(2) the circular locating groove base of the present apparatus, can rapidly and accurately carry out installation operation, ensure that concentricity, so as to ensure
The uniformity of surrounding filling dose, finally ensure that the uniformity of sintered density.
Brief description of the drawings
Fig. 1 is a kind of structural representation of two-tube explosive compaction ceramic powders device of the present utility model.
Fig. 2 is that a kind of circular locating groove base of two-tube explosive compaction ceramic powders device of the present utility model locally shows
It is intended to.
In figure：1st, detonator, 2, top sealing-plug, 3, explosive, 4, steel inner tube, 5, steel outer tube, 6, explosive limitation pipe, 7,
Ceramic powders, 8, bottom seal plug, 9, circular locating groove base, 10, metal partion (metp), 11, circular groove, 12, annular two-tube
Positioning boss, 13, annular groove, 14, powder charge pipe limitation boss
Embodiment
Show that example illustrates some embodiments of the present utility model, and should not be construed as limiting this practicality new
The scope of type.The utility model disclosure can be improved from material, method and reaction condition simultaneously, it is all these
Improve, all should fall within spirit and scope of the present utility model.
As shown in figure 1, a kind of two-tube explosive compaction ceramic powders device, including steel main basal base, circular locating groove bottom
Seat 9, steel inner tube 4, steel outer tube 5 and explosive limitation pipe 6, the circular locating groove base 9 are arranged on main basal base；Such as figure
Shown in 2, circular locating groove base 9 include base among circular groove 11, the annular two-tube positioning boss 12 outside groove,
Powder charge pipe limitation boss 14 outside annular groove 13 and annular groove outside two-tube positioning boss, the circular groove
11st, annular two-tube positioning boss 12, annular groove 13 and powder charge pipe limitation boss 14 are in concentric position；The steel inner tube
4 are stuck in the two-tube inwall of positioning boss 12, and the steel outer tube 5 is enclosed on the two-tube outer wall of positioning boss 12, and the explosive limitation pipe 6 blocks
On the powder charge pipe limitation inwall of boss 14, steel inner tube 4, steel outer tube 5 and explosive limitation pipe 6 are in concentric position；It is described
The top and bottom of steel inner tube 4 set a sealing-plug to be matched with steel inner tube respectively, wherein being set on the sealing-plug 2 of top
Put a vacuum hole for being used to vacuumize；Metal spacer block 10 is also provided with the steel inner tube 4, for preventing explosive compaction mistake
Informal Mach transmitting is formed in journey in body of powder, so as to cause that Mach hole is formed in compacts；The explosive limits tube top
Portion is the cone that Open Side Down, and conical upper end sets a detonator utensil receiving opening.
In the present embodiment, circular locating groove base is the sealing at the top of steel inner tube by wooden, integrated molding
Fill in for cone blocking.The size of steel inner tube is Ф 27.5 × 1, and the size of steel outer tube is Ф 32 × 1.5, metal spacer block in pipe
Thickness be 5mm, the size of explosive limitation pipe is Ф 58 × 1.5.Powder packing density is 3.71g/cm3, dynamite charge density
For 1.69g/cm3。
Operation principle of the present utility model：
The process of two-tube explosive compaction ceramic powders is carried out using device in embodiment 1, is comprised the following steps：
Step 1: using business ITO composite ceramic powders as raw material (its ITO content is not less than 99.99%), ITO ceramics are multiple
Close powder to be fitted into steel inner tube, about 50% solid density is compacted to, then by upper sealing-plug and lower sealing-plug by steel
The seal of tube；Metal derby (thickness 5mm) is provided with pipe, it is therefore an objective to prevent from forming Mach in body of powder during explosive compaction
Transmitting, so as to cause that Mach hole is formed in compacts.
Step 2: the steel inner tube of good seal is subjected to vacuumize process from the vacuum hole at top；
Step 3: the steel inner tube after vacuumize process, powder and sealing-plug combination vertical are stuck in circular locator card
On the two-tube positioning boss inwall of bottom land seat, then steel outer tube is enclosed on to the two-tube positioning boss of circular locating groove base
On outer wall, explosive is limited into pipe clamp on powder charge pipe limitation boss inwall, three pipe concentrics are placed；
Step 4: loading detonating explosive in the space formed to explosive limitation pipe and steel outer tube, make in the present embodiment
Explosive is peptamine, and dynamite charge density is 1.69g/cm3, detonator is inserted from the detonator utensil receiving opening in explosive limitation tube top portion
Explosive；
Step 5: detonating primer, by surge waveform caused by explosive charge into high temperature and high pressure environment be compacted,
Obtain the sintered body of certain compactness.
Two-tube explosive compaction ceramic powders device of the present utility model can utilize low explosive to obtain higher-strength shock wave,
Improve sintered density；Meanwhile fly pipe and bonded with inner tube under detonation pressure effect, thicker steel bushing makes back sparse bright
It is aobvious to reduce, be advantageous to improve sintered body compactness and be evenly distributed and expand sintering range；Circular locating groove base can be quick
Installation operation is carried out exactly, ensure that concentricity, so as to ensure that the uniformity of surrounding filling dose, finally ensure that sintering
The uniformity of volume density.
It is described above, the only preferable embodiment of the utility model, but the scope of protection of the utility model is not
This is confined to, any one skilled in the art is in the technical scope that the utility model discloses, according to this practicality
New technical scheme and its inventive concept is subject to equivalent substitution or change, should all cover the scope of protection of the utility model it
It is interior.
Claims (6)
- A kind of 1. two-tube explosive compaction ceramic powders device, it is characterised in that：Including main basal base, circular locating groove base, steel Inner tube, steel outer tube and explosive limitation processed are managed, and the circular locating groove base is arranged on main basal base, circular locating groove bottom Seat includes circular groove among base, the annular two-tube positioning boss outside groove, annular recessed outside two-tube positioning boss Powder charge pipe limitation boss outside groove and annular groove, the circular groove, annular two-tube positioning boss, annular groove and dress Pencil limitation boss is in concentric position；The steel inner tube is stuck in two-tube positioning boss inwall, and the steel outer tube is enclosed on Two-tube positioning boss outer wall, explosive limitation pipe clamp is on powder charge pipe limitation boss inwall, steel inner tube, steel outer tube and fried Medicine limitation pipe is in concentric position；The top and bottom of the steel inner tube set one to match with steel inner tube respectively Sealing-plug, wherein setting a vacuum hole for being used to vacuumize on the sealing-plug at top；The explosive limitation tube top portion is opening Downward cone, conical upper end set a detonator utensil receiving opening.
- A kind of 2. two-tube explosive compaction ceramic powders device according to claim 1, it is characterised in that：Described circle is determined Position neck base is made up of any material in wood or plastics.
- A kind of 3. two-tube explosive compaction ceramic powders device according to claim 1, it is characterised in that：Described circle is determined Position neck base is integrated molding or spicing forming type.
- A kind of 4. two-tube explosive compaction ceramic powders device according to claim 1, it is characterised in that：Described main basal base Formed for steel.
- A kind of 5. two-tube explosive compaction ceramic powders device according to claim 1, it is characterised in that：The steel inner tube It is interior that some metal spacer blocks for being used to prevent to produce Mach hole during explosive compaction are set.
- A kind of 6. two-tube explosive compaction ceramic powders device according to claim 1, it is characterised in that：In described steel The sealing-plug in tube top portion is cone blocking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720812638.4U CN206926049U (en) | 2017-07-06 | 2017-07-06 | A kind of two-tube explosive compaction ceramic powders device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720812638.4U CN206926049U (en) | 2017-07-06 | 2017-07-06 | A kind of two-tube explosive compaction ceramic powders device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206926049U true CN206926049U (en) | 2018-01-26 |
Family
ID=61354038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720812638.4U Active CN206926049U (en) | 2017-07-06 | 2017-07-06 | A kind of two-tube explosive compaction ceramic powders device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206926049U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108247047A (en) * | 2018-04-11 | 2018-07-06 | 中国科学技术大学 | The weak sparse metal powder explosive compaction of staff cultivation and powder plate Explosion composite method |
| CN111195506A (en) * | 2020-01-21 | 2020-05-26 | 成都奇点无限科技有限公司 | Detonation type synthesizer |
-
2017
- 2017-07-06 CN CN201720812638.4U patent/CN206926049U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108247047A (en) * | 2018-04-11 | 2018-07-06 | 中国科学技术大学 | The weak sparse metal powder explosive compaction of staff cultivation and powder plate Explosion composite method |
| CN108247047B (en) * | 2018-04-11 | 2024-03-29 | 中国科学技术大学 | Full-constraint weak sparse metal powder explosion compaction and powder plate explosion compounding method |
| CN111195506A (en) * | 2020-01-21 | 2020-05-26 | 成都奇点无限科技有限公司 | Detonation type synthesizer |
| CN111195506B (en) * | 2020-01-21 | 2021-01-15 | 成都奇点无限科技有限公司 | Detonation type synthesizer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206926049U (en) | A kind of two-tube explosive compaction ceramic powders device | |
| CN103940308B (en) | Containing airspace loading method and the device in water cannon hole | |
| US6530326B1 (en) | Sintered tungsten liners for shaped charges | |
| CN104567564A (en) | Aqueous medium non-coupling charge explosion method of jointed rock mass | |
| CN101745639A (en) | Preparation method of non-crystalline grains reinforced aluminium-base composite material by means of explosive compaction | |
| CN101234428B (en) | Flat plate exploder capable of improving velocity of flyer | |
| Xu et al. | Bore-center annular shaped charges with different liner materials penetrating into steel targets | |
| GB938671A (en) | Improvements in or relating to the production of spheroids | |
| CN106381439B (en) | A kind of method that nano oxide dispersion reinforcing martensite heat-resistant steel is prepared using explosive sintering | |
| CN209371898U (en) | A kind of explosive-source explosive post filling water-resistance booster gains | |
| CN107052331B (en) | Device and method for explosion sintering of nano aluminum bar capable of releasing pressure | |
| CN206926054U (en) | A kind of making mould of adjustable analog material standard specimen | |
| CN109341444A (en) | Explosive-source explosive post filling water-resistance booster gains | |
| CN101147851A (en) | Explosive compacting method capable eliminating additional temperature affection | |
| CN208483991U (en) | A kind of two-tube explosive compaction function ceramics powder unit | |
| GB847775A (en) | Improvements in or relating to the production of hollow bodies from powder | |
| CN1973983A (en) | Shock wave process and apparatus for synthesizing cubic silicon nitride material | |
| CN206912247U (en) | Can pressure release type explosive sintering nanometer aluminium bar device | |
| Voitenko et al. | Mechanical effect of shaped charges with porous liners | |
| CN103862696A (en) | Conical underground explosion shock wave compaction device | |
| Baird et al. | Density–Energy Relationships in Explosive Compaction of Metal Powders | |
| CN109622953B (en) | Metal powder forming device | |
| CN218211017U (en) | Bullet primer dress presses powder production facility | |
| CN112222404B (en) | Bidirectional pressure relief device and method for preparing metal nano aluminum bar based on explosive sintering process | |
| CN108941530A (en) | Carbide matrix feeding and preparation method thereof, carbide matrix green body and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |