CN105619867A - Method for performing pressing formation on powder material under assistance of ultrasonic vibration - Google Patents

Method for performing pressing formation on powder material under assistance of ultrasonic vibration Download PDF

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Publication number
CN105619867A
CN105619867A CN201610009976.4A CN201610009976A CN105619867A CN 105619867 A CN105619867 A CN 105619867A CN 201610009976 A CN201610009976 A CN 201610009976A CN 105619867 A CN105619867 A CN 105619867A
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China
Prior art keywords
ultrasonic
body material
powder body
die sleeve
punch
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CN201610009976.4A
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CN105619867B (en
Inventor
吕珂臻
韩超
董向阳
陈学平
张锋
雍炼
冯立羊
付诚
刘鹏
杨宝刚
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Institute of Chemical Material of CAEP
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Institute of Chemical Material of CAEP
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Priority to CN201610009976.4A priority Critical patent/CN105619867B/en
Publication of CN105619867A publication Critical patent/CN105619867A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B30PRESSES
    • B30BPRESSES IN GENERAL
    • B30B11/00Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
    • B30B11/02Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space
    • B30B11/022Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space whereby the material is subjected to vibrations
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B30PRESSES
    • B30BPRESSES IN GENERAL
    • B30B15/00Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/34Heating or cooling presses or parts thereof

Abstract

The invention relates to the technical field of pressing formation on powder materials, and provides a method for performing pressing formation on a powder material under assistance of ultrasonic vibration. The method comprises the following steps that safety equipment for performing the pressing formation on the powder material is established; a to-be-pressed powder material is put in an ultrasonic die sleeve; a hydraulic machine is started, an ultrasonic punch does a relative movement under action of the hydraulic machine, and the powder material is driven to do a downward movement so as to be pressed; and a finished product obtained after the powder material in the ultrasonic die sleeve is pressed is taken out. According to the technical solution provided by the invention, internal friction among particles of the powder material and external friction between the particles and a die wall of the ultrasonic die sleeve are reduced, effective pressure of grains on different layers is increased, internal density uniformity is improved, and internal stress is reduced, therefore high-quality formation preparation of the grains is realized.

Description

Powder body material briquetting process under ultrasonic activation auxiliary
Technical field
The present invention relates to the compressing technical field of powder body material, the powder body material briquetting process under assisting particularly to a kind of ultrasonic activation.
Background technology
Compacting is to mix the important process path containing energy powder body material molding and powder charge field, but this technique faces the important bottleneck of innovation and development, particularly in density and density uniformity, internal stress homogenizing and residual stress release etc. Specifically, in the compressing process of powder body material, inevitably there is the external friction between the internal friction between powder body material granule and granule and die wall (or soft mode), cause pressure along pressing direction by progressively loss, cause the effective pressure that differing heights layer, different radial position powder body material granule containing energy are subject to inconsistent, make pressed compact internal density skewness.
In the compressing process of powder particle, if to the supersonic vibration being pressed material applying certain orientation, certain frequency and amplitude, the frictional force between workpiece and mould and monolithic molding power can be reduced, the deformability of material and the uniformity of deformation can also be improved to a certain extent, and then improve Forming Quality.
Summary of the invention
[solving the technical problem that]
It is an object of the invention to for powder body material, particularly containing energy powder body material, powder body material briquetting process under a kind of ultrasonic activation auxiliary is provided, with reduce powder body material compressing time granule and granule, granule and die wall between frictional force and monolithic molding power, simultaneously improve goods densification and reduce powder column internal residual stress.
[technical scheme]
The present invention is achieved by the following technical solutions.
The present invention relates to the powder body material briquetting process under a kind of ultrasonic activation auxiliary, including step:
A, set up powder body material compression molding device, described equipment includes ultrasound wave base, it is arranged on the ultrasonic die sleeve on ultrasound wave base, with ultrasonic die sleeve with the use of ultrasonic punch, drive the hydraulic press of ultrasonic punch, first ultrasonic transducer, transducer connecting portion, it is provided with cavity in described ultrasonic punch, the second ultrasonic transducer it is provided with in described cavity, described first ultrasonic transducer is connected with ultrasonic die sleeve by transducer connecting portion, described second ultrasonic transducer is connected with the bottom of ultrasonic punch by transducer connecting portion, it is provided with cooling water recirculation system in described ultrasonic die sleeve and in ultrasonic punch, described cooling water recirculation system includes inlet, water pipe, liquid outlet, described cooling water recirculation system is in the internal u-shaped layout of ultrasonic die sleeve,
B, powder body material to be pressed is positioned in ultrasonic die sleeve, between ultrasonic punch and ultrasonic base;
C, startup cooling water recirculation system, coolant is injected from the inlet of cooling water recirculation system, liquid outlet flows out;
D, startup hydraulic press, ultrasonic punch does relative motion under the effect of hydraulic press and drives powder body material downward movement so that powder body material to be suppressed, and makes the first ultrasonic transducer output ultrasonic wave to drive the resonance of ultrasonic die sleeve, to make the second ultrasonic transducer output ultrasonic wave to drive ultrasonic punch to resonate in described pressing process;
E, take out the finished product after the compacting of powder body material in ultrasonic die sleeve.
As one preferred embodiment, pressing process in described step D specifically includes: first arrange hydraulic press pressure, ultrasonic punch is driven to be compressed by powder body material by hydraulic press, make the first ultrasonic transducer output ultrasonic wave to drive the resonance of ultrasonic die sleeve, to make the second ultrasonic transducer output ultrasonic wave to drive ultrasonic punch to resonate, it is stepped up hydraulic press pressure until reaching the force value preset, described hydraulic press pressure increases stage by stage, and each stage all keeps a period of time.
As one preferred embodiment, described step A also includes: by the metal port electrostatic grounding of the first ultrasonic transducer and the second ultrasonic transducer, is connected with transducer connecting portion by ambroin or pottery by the first ultrasonic transducer.
As another preferred embodiment, described ultrasonic transducer is the output ultrasonic wave when hydraulic press pressure increases only.
As another preferred embodiment, described ultrasonic transducer is the output ultrasonic wave when hydraulic press pressure remains unchanged only.
As another preferred embodiment, in described step A, the side thickness of die of ultrasonic die sleeve is determined according to supersonic vibration frequency.
As another preferred embodiment, described step E specifically includes: unitary mould released, by boom hoisting, mould is placed in stripping station, starting hydraulic press promotes ultrasonic punch and powder body material powder column descending, die station makes ultrasound wave base and powder column slowly fall moving back, take out finished product.
[beneficial effect]
The technical scheme that the present invention proposes has the advantages that
The present invention makes ultrasonic die sleeve produce resonance under ul-trasonic irradiation, resonance energy is delivered in powder body material granule by ultrasonic die sleeve, granular materials in ultrasonic die sleeve produces dither, by grain periods sex reversal, reduce the external friction between the die wall (or soft mode) of the internal friction between powder body material granule and granule and ultrasonic die sleeve, improve the effective pressure of different layers powder column, achieve the effective densification improving powder body material parts under existing gentle condition of molding, improve internal density uniformity, and reduce internal stress, it is achieved thereby that prepared by the high-quality molding of powder column. therefore, the present invention is containing can in powder body material molding and powder charge field, it is possible to realize under comparatively gentle molding technological condition more densification and high uniformity containing can powder body material compressing.
Accompanying drawing explanation
The principle assumption diagram of the compressing safety equipment of powder body material under the ultrasonic activation auxiliary that Fig. 1 provides for embodiments of the invention one.
The principle assumption diagram of the ultrasonic die sleeve that Fig. 2 provides for embodiments of the invention one.
The principle assumption diagram of the ultrasonic punch that Fig. 3 provides for embodiments of the invention one.
The supersonic vibration secondary load forming principle figure that Fig. 4 provides for embodiments of the invention two.
The ultrasonic load mode figure of ultrasonic assistant forming process that Fig. 5 provides for embodiments of the invention two.
The ultrasonic load mode figure of ultrasonic assistant forming process that Fig. 6 provides for embodiments of the invention two.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearly, the specific embodiment of the present invention will be carried out clear, complete description below.
Embodiment one
The principle assumption diagram of the compressing safety equipment of powder body material under the ultrasonic activation auxiliary that Fig. 1 provides for the embodiment of the present invention one. As it is shown in figure 1, this equipment includes ultrasound wave base 1, the ultrasonic die sleeve 2 that is arranged on ultrasound wave base 1 and ultrasonic die sleeve 2 with the use of ultrasonic punch 3, drive the hydraulic press of ultrasonic punch 3.
In the present embodiment, as in figure 2 it is shown, ultrasonic die sleeve 2 includes cover plate 21, lifting bolt 22, powder compression chamber 23, counterdie 24, circulating water cooling system, circulating water cooling system includes water pipe 25, inlet 251 and liquid outlet 252. Lifting bolt 22 is arranged on cover plate 21 and counterdie 24. The junction of powder compression chamber 23 and the junction of cover plate 2, powder compression chamber 23 and the junction of inlet 251, powder compression chamber 23 and liquid outlet 252 seals each through encapsulant, encapsulant is macromolecular material, such as polyethylene, politef etc., are sealed against coolant leakage by encapsulant. Additionally, water pipe in circulating water cooling system is u-shaped or serpentine configuration is around ultrasonic die sleeve 2, inlet 251 is arranged on the bottom of ultrasonic die sleeve 2, liquid outlet 252 is arranged on the top of ultrasonic die sleeve 2, coolant flows into from the inlet 251 of bottom, flow out from the liquid outlet 252 on top, cool down ultrasonic die sleeve 2 by coolant (high purity water or brackish water), it is to avoid the too high situation of local temperature occur in ultrasonic transducer 4 and ultrasonic die sleeve 2 junction. Ultrasonic die sleeve 2 be provided around ultrasonic transducer 4, specifically, the quantity of ultrasonic transducer 4 is 2��20, and it is evenly distributed on the circumference centered by ultrasonic die sleeve 2, provides oscillation crosswise by the ultrasonic activation of ultrasonic transducer 4 for the powder in ultrasonic die sleeve 2.
In the present embodiment, as it is shown on figure 3, ultrasonic punch 3 includes pressing plate 32, Upper Die-sleeve 33, water pipe 34, lifting bolt 35, upper mould connecting plate 36. It is provided with cavity in ultrasonic punch 3, in cavity, is provided with ultrasonic transducer 31, provide extensional vibration by the ultrasonic activation of ultrasonic transducer 31 for the powder in ultrasonic die sleeve. Pressing plate 32 is positioned at the top of ultrasonic punch 3, water pipe 34 is positioned at the cavity of ultrasonic punch, upper mould connecting plate 36 is arranged on the bottom of ultrasonic punch 3, the junction of Upper Die-sleeve 33 and the junction of pressing plate 32, Upper Die-sleeve 33 and upper mould connecting plate 36 seals each through encapsulant, encapsulant is macromolecular material, such as polyethylene, politef etc., it is sealed against coolant leakage by encapsulant. Specifically, coolant imports from the inlet 341 of water pipe 34, cooling liquid is made to enter cavity bottom, flow out finally by liquid outlet 342, for transferring out the heat produced in supersonic vibration process in time to reach the purpose of cooling ultrasonic transducer 31, thus avoiding ultrasonic transducer 31 that superheating phenomenon occurs, advantageously reduce the temperature of ultrasonic transducer 31 and ultrasonic punch 3 junction, it is to avoid the situation that local temperature is too high occurs in powder body material in supersonic vibration is suppressed simultaneously.
In the present embodiment, the thickness of the die sleeve wall of ultrasonic die sleeve 2 is determined according to the frequency of vibration of ultrasonic transducer 4 output ultrasonic wave, to ensure that ultrasonic die sleeve 2 can produce resonance under input ul-trasonic irradiation. In ultrasonic punch 3, the thickness of mould connecting plate 36 is determined according to the frequency of vibration of ultrasonic transducer 31 output ultrasonic wave, to ensure that ultrasonic punch 3 can produce resonance under input ul-trasonic irradiation.
In the present embodiment, ultrasonic transducer 31 and ultrasonic transducer 4 all adopt low-pressure type magnetostrictive transducer to replace high-pressure type piezoelectric ceramic transducer, avoid the occurrence of electric charge after transient state punctures ultrasonic transducer and transfer on metal die, cause the high voltage transient produced in a mold and cause containing can type powder body material detonation or explosion phenomenon, therefore, the embodiment of the present invention reduces the risk producing high voltage transient after puncturing transducer from source, additionally, the embodiment of the present invention is at ultrasonic transducer 31, ultrasonic transducer 4 is respectively connected with static electricity earthing device, for in time residual charge being conducted.
In the present embodiment, ultrasonic transducer 4 is connected with transducer connecting portion 5 by material or the polymer of insulating properties, and Ins. ulative material can be SiO2��ZrO2Deng Ins. ulative material more wear-resisting, impact-resistant, polymer can be the Ins. ulative material more wear-resisting, impact-resistant such as ultra-high molecular weight polyethylene, politef, by adopting the material of insulating properties or polymer, it is possible to reduce ultrasonic transducer structure and puncture rear voltage and be directly transferred to operator's Danger Electric shock risk that ultrasonic die sleeve 2 causes.
In the present embodiment, ultrasound wave base 1 is provided with movable fixed system, specifically comprise adjusting nut plate, hook, hanging block, it is distributed in around ultrasonic die sleeve 2, together with ultrasound wave base 1 with the use of, movable fixed system is typically in about 3��6 groups and is advisable, there is the segregation phenomenon of ultrasonic die sleeve and base and ultrasonic transducer at lifting knockout course in main anti-locking apparatus, avoid the occurrence of and injure by a crashing object, even molding containing can powder column drop voluntarily from die sleeve and base formed clash into thus causing detonation or risk of explosion.
In the present embodiment, ultrasonic die sleeve 2 is fixed by fixture block with ultrasonic punch 3, card block of material adopts wear-resisting type rustless steel, diameter is advisable more than 8mm, interim for ultrasonic punch 3 is fixed, press through under preventing ultrasonic punch 3 after suppression journey occurs ultrasound wave is crooked, ultrasonic punch 3 and ultrasonic die sleeve 2 occur wedging, card the phenomenon such as to gnaw, it is to avoid cause local strong friction and plastic strain and cause being emerged and phenomenon that mould scratches, damages of dangerous focus.
The powder body material briquetting process that the equipment adopting embodiment a kind of realizes under ultrasonic activation auxiliary is referred to following concrete grammar embodiment.
Embodiment two
Embodiment two provides the powder body material briquetting process under a kind of ultrasonic activation auxiliary, and the method comprises the following steps.
Step (1): powder body material to be pressed is positioned in ultrasonic die sleeve, between ultrasonic punch and ultrasonic base.
Step (2): start cooling water recirculation system, coolant is injected from the inlet of cooling water recirculation system, liquid outlet flows out.
Step (2) injects coolant especially by the inlet of the inlet of ultrasonic die sleeve, ultrasonic punch, make coolant inject from the inlet of cooling water recirculation system, liquid outlet flows out, thus the cooling water recirculation system in the cooling water recirculation system started in ultrasonic die sleeve and ultrasonic punch.
Step (3): start hydraulic press, ultrasonic punch does relative motion under the effect of hydraulic press and drives powder body material downward movement so that powder body material to be suppressed, and makes the first ultrasonic transducer output ultrasonic wave to drive the resonance of ultrasonic die sleeve, to make the second ultrasonic transducer output ultrasonic wave to drive ultrasonic punch to resonate in pressing process.
Step (3) specifically includes: first arrange hydraulic press pressure, ultrasonic punch is driven to be compressed by powder body material by hydraulic press, make ultrasonic transducer output ultrasonic wave to drive ultrasonic die sleeve to resonate, make ultrasonic transducer output ultrasonic wave to drive ultrasonic punch resonance (concrete principle is as shown in Figure 4), it is stepped up hydraulic press pressure until reaching the force value preset, specifically, hydraulic press pressure increases stage by stage, each stage all keeps a period of time, as shown in Figure 5 or Figure 6, in Fig. 5 or Fig. 6, abscissa representing time, vertical coordinate represents hydraulic press pressure. additionally, in order to avoid the interference that powder body physical parameter ginseng is measured by ultrasonic loading, the mode that interval load is ultrasonic can be adopted, specifically, as shown in Figure 5, ultrasonic transducer is the output ultrasonic wave when hydraulic press pressure remains unchanged only, or as shown in Figure 6, ultrasonic transducer is the output ultrasonic wave when hydraulic press pressure increases only. by this step, by ultrasonic transducer, powder body material is applied the vibration of vertical and horizontal, drive powder body material cycle movement, reduce the frictional force between powder body material and between powder body material and mould inner wall, improve the effective pressure being applied on material, thus obtaining compactness extent and the better shaped article of uniformity.
Step (4): take out the finished product after powder body material compacting in ultrasonic die sleeve.
Specifically, step (4) including: unitary mould is released, is placed in stripping station by boom hoisting by mould, starts hydraulic press and promotes ultrasonic punch and powder body material powder column descending, die station makes ultrasound wave base and powder column slowly fall moving back, take out finished product.
Below with the powder body material substitute MJ-9003C containing energy for object of study, above-mentioned process is adopted to describe the density of shaped charge, uniformity and profiling temperatures, test result indicate that, the embodiment of the present invention provide ultrasonic-couple of force closes compressing technology improving green density and have bigger effect in improving uniformity, and shaped charge uniformity of temperature profile, without obvious focus, it it is the more promising new forming technique of one.
(1) containing can powder body material substitute ultrasonic-couple of force closes compressing density
With containing can powder body material substitute material for experimental subject, research the embodiment of the present invention provide ultrasonic-couple of force close compressing technology Preliminary Results. Table 1 it is shown that through the sample pressed compact of ultrasonic-couple of force combined pressure, with under other conditions identical without compared with the pressed compact of ultrasonic compacting, its average density increases by 1.79%, illustrates that ultrasonication can be effectively improved the compactness extent of pressed compact.
Table 1 green density is tested
Sample 1 Sample 2
Pressing conditions Ultrasonic-couple of force combined pressure system Conventional without ultrasonic compacting
Diameter (mm) 200.00 200.00
Highly (mm) 63.12 64.24
Quality (g) 3042.2 3041.6
Density (g/cm3) 1.534 1.507
(2) containing can powder body material substitute ultrasonic-couple of force closes compressing uniformity
For further illustrating ultrasonic-force coupling action with to the effect containing energy powder body material substitute, adopting PhilipsBrillianc64 to arrange multi-layer spiral CT and pressed compact uniformity is carried out phenetic analysis. Result shows, the conventional Density Distribution basic simlarity without excess sound pressure sample preparation product and ultrasonic-couple of force combined pressure sample preparation product, sample center is density lowermost extent, radially density is gradually increased, sample through ultrasonic-force coupling action compacting, there is certain expansion its high density distributed areas compared with without the sample of ultrasonic loading, and the defects such as crack, bubble does not occur in sample interior. Owing to ultrasonic transducer is radially distributed, sample outer rim supersonic vibration is relatively strong, can promote the rearrangement of powder particle, improve the uniformity of sample rate to a certain extent.
(3) ultrasonic-couple of force synthesis type pressed compact Temperature Distribution
Due to the specific sensibility matter containing energy powder body material, in powder compacting process, it is necessary to the strict appearance controlling local overheat condition. Adopt FLUKETi25 thermal imaging system that the pressed compact surface temperature field distribution after compacting is characterized. Test result indicate that, the conventional surface temperature without excess sound pressure sample preparation product and ultrasonic-couple of force combined pressure sample preparation product is between 10-13 DEG C, after ultrasonic-force coupling action, pressed compact surface temperature has no obvious rising, pressed compact upper and lower surface center temperature is slightly higher, edge is on the low side, but still ratio is more uniform for the distribution of whole sample surface temperature, obvious focus does not occur.
As can be seen from the above embodiments, the embodiment of the present invention makes ultrasonic die sleeve produce resonance under ul-trasonic irradiation, resonance energy is delivered in powder body material granule by ultrasonic die sleeve, granular materials in ultrasonic die sleeve produces dither, by grain periods sex reversal, reduce the external friction between the die wall (or soft mode) of the internal friction between powder body material granule and granule and ultrasonic die sleeve, improve the effective pressure of different layers powder column, achieve the effective densification improving powder body material parts under existing gentle condition of molding, improve internal density uniformity, and reduce internal stress, it is achieved thereby that prepared by the high-quality molding of powder column. therefore, the embodiment of the present invention is containing can in powder body material molding and powder charge field, it is possible to realize under comparatively gentle molding technological condition more densification and high uniformity containing can powder body material compressing.
It is to be appreciated that the embodiment of foregoing description is a part of embodiment of the present invention, rather than whole embodiment, neither limitation of the present invention. Based on embodiments of the invention, the every other embodiment that those of ordinary skill in the art obtain under not paying creative work premise, broadly fall into protection scope of the present invention.

Claims (7)

1. the powder body material briquetting process under a ultrasonic activation auxiliary, it is characterised in that include step:
A, set up the compressing safety equipment of powder body material, described safety equipment include ultrasound wave base, it is arranged on the ultrasonic die sleeve on ultrasound wave base, with ultrasonic die sleeve with the use of ultrasonic punch, drive the hydraulic press of ultrasonic punch, first ultrasonic transducer, transducer connecting portion, it is provided with cavity in described ultrasonic punch, the second ultrasonic transducer it is provided with in described cavity, described first ultrasonic transducer is connected with ultrasonic die sleeve by transducer connecting portion, described second ultrasonic transducer is connected with the bottom of ultrasonic punch by transducer connecting portion, it is provided with cooling water recirculation system in described ultrasonic die sleeve and in ultrasonic punch, described cooling water recirculation system includes inlet, water pipe, liquid outlet, described cooling water recirculation system is in the internal u-shaped layout of ultrasonic die sleeve,
B, powder body material to be pressed is positioned in ultrasonic die sleeve, between ultrasonic punch and ultrasonic base;
C, startup cooling water recirculation system, coolant is injected from the inlet of cooling water recirculation system, liquid outlet flows out;
D, startup hydraulic press, ultrasonic punch does relative motion under the effect of hydraulic press and drives powder body material downward movement so that powder body material to be suppressed, and makes the first ultrasonic transducer output ultrasonic wave to drive the resonance of ultrasonic die sleeve, to make the second ultrasonic transducer output ultrasonic wave to drive ultrasonic punch to resonate in described pressing process;
E, take out the finished product after the compacting of powder body material in ultrasonic die sleeve.
2. the powder body material briquetting process under ultrasonic activation according to claim 1 auxiliary, the pressing process that it is characterized in that in described step D specifically includes: first arrange hydraulic press pressure, ultrasonic punch is driven to be compressed by powder body material by hydraulic press, make the first ultrasonic transducer output ultrasonic wave to drive ultrasonic die sleeve to resonate, make the second ultrasonic transducer output ultrasonic wave to drive ultrasonic punch to resonate, it is stepped up hydraulic press pressure until reaching the force value preset, described hydraulic press pressure increases stage by stage, each stage all keeps a period of time.
3. the powder body material briquetting process under ultrasonic activation according to claim 1 and 2 auxiliary, it is characterized in that described step A also includes: by the metal port electrostatic grounding of the first ultrasonic transducer and the second ultrasonic transducer, the first ultrasonic transducer is connected with transducer connecting portion by ambroin or pottery.
4. the powder body material briquetting process under ultrasonic activation according to claim 1 and 2 auxiliary, it is characterised in that described ultrasonic transducer is the output ultrasonic wave when hydraulic press pressure increases only.
5. the powder body material briquetting process under ultrasonic activation according to claim 1 and 2 auxiliary, it is characterised in that described ultrasonic transducer is the output ultrasonic wave when hydraulic press pressure remains unchanged only.
6. the powder body material briquetting process under ultrasonic activation according to claim 1 auxiliary, it is characterised in that in described step A, the side thickness of die of ultrasonic die sleeve is determined according to supersonic vibration frequency.
7. the powder body material briquetting process under ultrasonic activation according to claim 1 auxiliary, it is characterized in that described step E specifically includes: unitary mould released, by boom hoisting, mould is placed in stripping station, starting hydraulic press promotes ultrasonic punch and powder body material powder column descending, die station makes ultrasound wave base and powder column slowly fall moving back, take out finished product.
CN201610009976.4A 2016-01-06 2016-01-06 Powder body material briquetting process under ultrasonic activation auxiliary Active CN105619867B (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108088331A (en) * 2017-12-07 2018-05-29 江南工业集团有限公司 For the cooling device of pressing charging mould and powder column forming method
CN109130258A (en) * 2018-09-08 2019-01-04 河南金拇指防水科技股份有限公司 The waterproof material molding machine of two-dimensional directional vibration
CN109878138A (en) * 2019-03-21 2019-06-14 中国工程物理研究院化工材料研究所 A kind of ultrasonic wave added powder forming method under fluid environment
CN112220876A (en) * 2020-11-17 2021-01-15 广州云脉医疗科技有限公司 Medicinal moxibustion traditional Chinese medicine and preparation method thereof
CN112961692A (en) * 2021-03-04 2021-06-15 中国五环工程有限公司 Solid waste compression degassing carbonization method and device and system comprising device

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CN104647793A (en) * 2015-02-09 2015-05-27 中国科学院声学研究所东海研究站 Production method for compression molding of PBX (Polymer Bonded Explosive)
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GB688312A (en) * 1949-09-09 1953-03-04 Sueddeutsche App Fabrik Gmbh Method for pressing of powdered substances
JPS5594798A (en) * 1979-01-11 1980-07-18 Agency Of Ind Science & Technol Ultrasonic hot press method and device thereof
EP0098756B1 (en) * 1982-05-04 1986-08-20 Legrand Floating core vibration transmission piece
JPH0957496A (en) * 1995-08-22 1997-03-04 Arutekusu:Kk Ultrasonic powder compacting device
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108088331A (en) * 2017-12-07 2018-05-29 江南工业集团有限公司 For the cooling device of pressing charging mould and powder column forming method
CN109130258A (en) * 2018-09-08 2019-01-04 河南金拇指防水科技股份有限公司 The waterproof material molding machine of two-dimensional directional vibration
CN109878138A (en) * 2019-03-21 2019-06-14 中国工程物理研究院化工材料研究所 A kind of ultrasonic wave added powder forming method under fluid environment
CN109878138B (en) * 2019-03-21 2021-07-27 中国工程物理研究院化工材料研究所 Ultrasonic-assisted powder forming method in fluid environment
CN112220876A (en) * 2020-11-17 2021-01-15 广州云脉医疗科技有限公司 Medicinal moxibustion traditional Chinese medicine and preparation method thereof
CN112961692A (en) * 2021-03-04 2021-06-15 中国五环工程有限公司 Solid waste compression degassing carbonization method and device and system comprising device

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