CN112519302B - Mold for preparing mold pressing water-soluble compound fertilizer - Google Patents
Mold for preparing mold pressing water-soluble compound fertilizer Download PDFInfo
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- CN112519302B CN112519302B CN202110054059.9A CN202110054059A CN112519302B CN 112519302 B CN112519302 B CN 112519302B CN 202110054059 A CN202110054059 A CN 202110054059A CN 112519302 B CN112519302 B CN 112519302B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/02—Dies; Inserts therefor; Mounting thereof; Moulds
Abstract
The invention discloses a mould for preparing mould pressing water-soluble compound fertilizer, which comprises a mould mounting table, wherein a mould cavity is vertically arranged in the mould mounting table, a lower mould body is coaxially arranged in the mould cavity close to the lower position of the mould cavity, an upper mould body is coaxially arranged above the lower mould body, the upper mould body and the lower mould body are oppositely arranged, a mould pressing position is arranged between the upper mould body and the lower mould body and positioned in the mould cavity, the upper mould body moves towards the direction close to the lower mould body during working and is used for mould pressing the compound fertilizer powder in the mould pressing position, and a first exhaust system for exhausting air in the mould pressing position and the compound fertilizer powder is arranged on the upper mould body. The fertilizer can achieve the effect of uniform dissolution when in use, so that the produced fertilizer has more uniform nutrients and more stable fertilizer application effect.
Description
Technical Field
The invention belongs to the technical field of fertilizer production, and particularly relates to a mold for preparing a mold-pressing water-soluble compound fertilizer.
Background
The traditional bulk fertilizer is labor-consuming and time-consuming in fertilization, large in fertilizer loss, serious in waste and limited in fertilizer absorption, so that a bulk fertilizer adopting a block dosage form appears on the market, the block dosage form fertilizer is compact in appearance, simple, convenient and quick in fertilization, less in applied dust, less in nutrient loss, high in fertilizer efficiency and slow in fertilizer efficiency release, plants can effectively obtain nutrition required by development, and the defects of the traditional bulk fertilizer can be effectively overcome.
Disclosure of Invention
The invention aims to provide a mould for preparing a mould pressing water-soluble compound fertilizer, which aims to solve the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme:
the utility model provides a mould for preparing mould pressing dissolves compound fertile of water, including the die mounting platform, the inside vertical die cavity of having seted up of die mounting platform, the die cavity is inside to be close to the coaxial die body that is equipped with of its below position department, the coaxial die body that is provided with in top of die body down, it lays relatively with die body to go up the die body, and the position department that lies in the die cavity between last die body and the lower die body is provided with the mould pressing position, the die body is used for carrying out the mould pressing to the compound fertile powder in the mould pressing position to the direction removal that is close to down the die body at during operation, it carries out carminative first exhaust system to offer on the die pressing position and the air in the compound fertile powder.
The following is a further optimization of the above technical solution of the present invention:
the upper die comprises a base body, a circular groove is formed in the lower end face of the base body, and a transition section which is circular and is integrally connected to the base body is arranged on the outer side of the groove.
Further optimization: the first exhaust system comprises a plurality of first exhaust holes formed in the base body, two ends of each first exhaust hole penetrate through the upper end face and the lower end face of the base body respectively, and the diameter of each first exhaust hole is phi 2.0-2.5 mm.
Further optimization: and a first air flow channel communicated with the upper end of the first exhaust hole is formed in the end face, far away from the transition section, of the base body, the first air flow channel penetrates through the outer surface of the base body respectively, and the diameter of the first air flow channel is phi 0.25-0.3 mm.
Further optimization: an upper hydraulic rod for driving the upper die body to vertically move along the axis of the upper die body is arranged above the upper die body, the upper die body is connected with the upper hydraulic rod through an upper mounting block, and a second exhaust system is arranged on the upper mounting block.
Further optimization: the second exhaust system comprises a second exhaust channel arranged in the upper mounting block, the upper end of the second exhaust channel is communicated with the outside through an exhaust port, a plurality of second exhaust holes communicated with the second exhaust channel are formed in the outer surface of the upper mounting block, the diameter of the second exhaust channel is phi 45-50mm, and the diameter of the second exhaust holes is phi 13-15 mm.
Further optimization: the outer surface of the upper mounting block is integrally connected with a plurality of supporting blocks, the outer surfaces of the supporting blocks are arc surfaces, spacing distances are arranged between the outer surfaces of the supporting blocks and the outer surface of the upper mounting block, and the shape of the outer surface surrounded by the supporting blocks is matched with the shape of the inner wall of the die cavity.
Further optimization: an air outlet gap of 0.1-0.2mm is arranged between the upper end face of the upper mounting block and the mounting end of the hydraulic rod.
Further optimization: the lower die body is matched with the upper die body in shape, an ejection mechanism is arranged below the lower die body and used for driving the lower die body to move up and down in the die cavity and ejecting the fertilizer blocks formed at the die pressing position out of the die cavity.
Further optimization: the ejection mechanism comprises a lower hydraulic rod arranged below the lower die, a lower die mounting seat is arranged between the lower die and the lower hydraulic rod, and the lower die is detachably connected with the lower hydraulic rod through the lower die mounting seat.
By adopting the technical scheme, the structure is simple, the conception is ingenious, the upper hydraulic rod drives the upper mounting block to move up and down when moving vertically up and down, the upper mounting block starts to be molded after entering the mold cavity, and the upper mounting block can shake in the mold cavity due to the fact that the hydraulic machine has very large pressure (up to 325 tons) on the fertilizer, so that the supporting block can support the upper mounting block to keep stable vertical movement in the mold cavity.
Receive the extrusion and can discharge unnecessary gas when fertilizer, these gases can flow upwards through the clearance between last installation piece and the die cavity, then enter into second exhaust system through the second exhaust hole that sets up on last installation piece lateral wall in, the gas vent that is linked together through with second exhaust system discharges, and gas can be arranged to the outside through the clearance between last installation piece and the last hydraulic stem.
The mould can effectively solve the problem that the mould cavity cannot be exhausted in the mould pressing process, the hardness of the fertilizer can be effectively increased, the density of the fertilizer can be uniform, the fertilizer can reach the effect of uniform dissolution when in use, the produced fertilizer is more uniform in nutrient, and the fertilizer application effect is more stable.
Go up the die body and drive down by last installation piece and carry out the mould pressing to fertilizer, the gaseous clearance between partly passing through mould and the die cavity of fertilizer is discharged, and another part is gaseous through setting up the position department that first exhaust system circulated to first exhaust system on the base member, is discharged gas by first exhaust system again.
Because the thickness of the filled rough material is 11cm-12cm during operation, and the thickness of the processed fertilizer needs to be kept between 5cm and 5.5cm, a large amount of gas in the rough material needs to be discharged to ensure that the fertilizer can keep good hardness and density after being formed.
The gas in the woollen can be completely extruded out through the matching of the first air flow channel and the second air flow channel, so that the fertilizer cannot expand due to the gas, the fault problem of the fertilizer is effectively solved, and the skin of the fertilizer is prevented from breaking.
The changeover portion can let the limit of fertilizer have certain radian, both can let the whole of fertilizer combine more stably, can also play excellent scour protection and hit the effect, guarantee fertilizer can not lead to breaking of fertilizer because of the lifting surface area is too little when bumping, but also can let the outward appearance of fertilizer more pleasing to the eye
The invention is further illustrated with reference to the following figures and examples.
Drawings
FIG. 1 is a schematic diagram of the general structure of the present invention;
FIG. 2 is a schematic view of the overall structure of the upper mold body according to the present invention;
FIG. 3 is a front view of the upper mold body of the present invention;
FIG. 4 is a bottom view of the upper mold body of the present invention;
FIG. 5 is a cross-sectional view taken along line A-A of FIG. 3;
FIG. 6 is a cross-sectional view taken along line B-B of FIG. 3;
FIG. 7 is a schematic view of the overall structure of the lower mold body according to the present invention;
FIG. 8 is a front view of an upper mounting block of the present invention;
fig. 9 is a cross-sectional view taken along line C-C of fig. 8.
In the figure: 1-a substrate; 2-a transition section; 3-a first venting aperture; 4-a first exhaust system; 5, mounting a hydraulic rod; 6-mounting a block; 7-lower mounting block; 8-upper die body; 9-lower die body; 10-a second exhaust system; 11-a second vent; 12-a support block; 13-an exhaust port; 14-lower hydraulic rod; 15-a die mounting table; 16-a mould cavity; 17-a second exhaust channel; 18-first exhaust gas flow channel.
Detailed Description
Example (b): as shown in fig. 1-9, a mold for preparing a mold pressing water-soluble compound fertilizer, which comprises a mold mounting table 15, a mold cavity 16 is vertically arranged in the mold mounting table 15, a lower mold body 9 is coaxially arranged in the mold cavity 16 near the lower position of the mold cavity, an upper mold body 8 is coaxially arranged above the lower mold body 9, the upper mold body 8 and the lower mold body 9 are arranged at intervals, a mold pressing position is arranged in the mold cavity 16 between the upper mold body 8 and the lower mold body 9, the upper mold body 8 is moved towards the direction near the lower mold body 9 and is used for mold pressing compound fertilizer powder in the mold pressing position, and a first exhaust system 4 for exhausting air in the mold pressing position and the compound fertilizer powder is arranged on the upper mold body 8.
The upper die body 8 comprises a base body 1 which is horizontally arranged, and the overall structure of the base body 1 is disc-shaped.
The lower terminal surface of base member 1 has seted up circular shape recess, and the outside of recess is laid and is the ring form and an organic whole connects changeover portion 2 on base member 1.
The transition section 2 is provided with a certain radian.
The first exhaust system 4 includes a plurality of first exhaust holes 3 that are opened on the base member 1 and are close to the middle position thereof, and the upper and lower both ends face of base member 1 is run through respectively at the both ends of first exhaust hole 3.
The diameter of the first exhaust hole 3 is phi 2.0-2.5 mm.
A first air flow channel 18 is formed in the end face, far away from the transition section 2, of the base body 1, the first exhaust holes 3 are communicated with the first air flow channel 18, and the first air flow channel 18 penetrates through the outer surface of the base body 1 respectively.
The diameter of the first air flow passage 18 is phi 0.25-0.3mm, and the cross section of the first air flow passage 18 is semicircular.
A gap of 0.05-0.1mm for air to pass through is arranged between the upper die body 8 and the upper mounting block 6.
In operation, the upper die body 8 is driven by the upper mounting block 6 to mold the compound fertilizer powder downwards, a part of gas in the compound fertilizer powder is discharged through a gap between the upper die 8 and the die cavity 16, the other part of gas is circulated to the position of the first air flow channel 18 through the first exhaust hole 3 arranged on the base body 1, and then the gas is discharged through the gap between the upper die body 8 and the upper mounting block 6 through the first air flow channel 18.
Due to the design, when the compound fertilizer is in work, the thickness of the filled compound fertilizer powder is 11-12cm, and the thickness of the processed fertilizer block needs to be kept at 5-5.5cm, so that a large amount of gas in the compound fertilizer powder needs to be discharged to ensure that the compound fertilizer powder can keep good hardness and density after being molded.
An upper hydraulic rod 5 used for driving the upper die body 8 to vertically move along the axis of the upper hydraulic rod is arranged above the upper die body 8, the upper die body 8 is connected with the upper hydraulic rod 5 through an upper mounting block 6, and a second exhaust system 10 is arranged on the upper mounting block 6.
The integral structure of the upper mounting block 6 is cylindrical, and the upper mounting block 6 and the hydraulic rod 5 are coaxially mounted.
An air outlet gap of 0.1-0.2mm is arranged between the upper mounting block 6 and the mounting end of the hydraulic rod 5.
In operation, the gap serves as an air flow passage for the passage of air.
The second exhaust system 10 includes a second annular exhaust channel 17 formed in the upper mounting block 6, and the diameter of the annular formed by the second exhaust channel 17 is smaller than the diameter of the upper mounting block 6.
The diameter of the second exhaust runner 17 is phi 45-50 mm.
A plurality of second exhaust holes 11 for exhausting are formed in the outer surface of the upper mounting block 6, and the second exhaust holes 11 extend towards the inner side of the mounting block 6 and are communicated with a second exhaust system 10.
The diameter of the second exhaust hole 11 is phi 13-15 mm.
An exhaust port 13 communicated with the outside is formed in the upper end face, penetrating through the upper mounting block 6, of the upper portion of the second exhaust flow passage 17, the exhaust port 13 is communicated with the second exhaust system 10, and the upper end of the second exhaust flow passage 17 is communicated with the outside through the exhaust port 13.
The exhaust port 13 extends upward for a distance along the axial direction of the upper mounting block 6, and the exhaust port 13 forms an opening at the upper end face of the upper mounting block 6.
The outer surface of the upper mounting block 6 is integrally connected with a plurality of supporting blocks 12 for fixing the position of the upper mounting block 6.
The outer surface of the supporting block 12 is a circular arc surface, a spacing distance is arranged between the outer surface of the supporting block 12 and the outer surface of the upper mounting block 6, and the shape of the outer surface surrounded by the supporting blocks 12 is matched with the shape of the inner wall of the die cavity 16.
The overall shape of the mold cavity 16 is cylindrical, and the upper end surface of the mold cavity 16 is an open structure.
A gap of 0.1mm is provided between the inner surface of the upper mounting block 6 and the cavity 16 for venting air from the cavity 16.
Design like this, go up hydraulic stem 5 and when carrying out vertical up-and-down motion, drive and go up installation piece 6 and reciprocate, after last installation piece 6 entered into die cavity 16, begin to carry out the mould pressing to compound fertilizer powder, because the hydraulic press is very big (up to 325 tons) to the pressure of compound fertilizer powder, can let and go up installation piece 6 and rock in die cavity 16, consequently supporting shoe 12 can play and support installation piece 6 vertical motion that remains stable in die cavity 16.
In operation, when the compound fertilizer powder is extruded, redundant gas can be discharged, the gas can flow upwards through a gap between the upper mounting block 6 and the die cavity 16, then enters the second exhaust channel 17 through the second exhaust hole 11 formed in the side wall of the upper mounting block 6, is discharged through the exhaust port 13 communicated with the second exhaust channel 17, and the gas can be discharged to the outside through the gap between the upper mounting block 6 and the upper hydraulic rod 5.
By the design, the problem that the mold cavity 16 cannot be exhausted in the mold pressing process can be effectively solved, the hardness of the fertilizer blocks can be effectively increased, the density of the fertilizer blocks can be uniform, the fertilizer blocks can be uniformly dissolved when in use, the produced fertilizer is more uniform in nutrient, and the fertilizer application effect is more stable.
The gas in the compound fertilizer powder can be completely discharged through the matching of the first exhaust system 4 and the second exhaust system 10, so that the fertilizer block cannot expand due to the gas, the fault problem of the fertilizer is effectively solved, and the skin fracture of the fertilizer block is avoided.
And a lower die body 9 matched with the upper die body 8 is coaxially arranged below the upper die body 8, and the overall shape of the lower die body 9 is the same as that of the upper die body 8.
And a mould pressing position is arranged between the upper mould body 8 and the lower mould body 9 and in the mould cavity 16.
And a transition section 2 is arranged on one end surface of the lower die body 9 opposite to the upper die body 8.
An ejection mechanism is arranged below the lower die body 9 and used for driving the lower die body 9 to move up and down in the die cavity 16 and ejecting the fertilizer blocks formed at the die pressing position out of the die cavity 16.
The ejection mechanism comprises a lower hydraulic rod 14 arranged below the lower die 9, a lower die mounting seat 7 is arranged between the lower die 9 and the lower hydraulic rod 14, and the lower die 9 is detachably connected with the lower hydraulic rod 14 through the lower die mounting seat 7.
The lower mounting block 7 is provided with a second air flow passage inside, which is the same as the upper mounting block 6.
A lower hydraulic rod 14 is coaxially arranged on the lower end surface of the lower mounting block 7.
A gap of 0.1-0.2mm is arranged between the lower mounting block 7 and the lower hydraulic rod 14.
Through the detection data, the content of nutrient elements in the mould pressing water-soluble compound fertilizer is rich and high, the whole diameter is phi 13mm, the height is 50-55mm, the weight of the single mould pressing water-soluble compound fertilizer is 1.5 kg/piece-2 kg/piece, the whole size is small, metering is not needed during use, the use is convenient, and the compound fertilizer is high in strength, not easy to break, not easy to waste and convenient to use.
The invention also provides a fertilizing method for the mould pressing water-soluble compound fertilizer, based on the mould pressing water-soluble compound fertilizer, the fertilizing method adopts an inflow method, the standard usage amount is 3Kg/10a (wherein a represents 100 square meters), and the usage amount is 2 Kg/mu in conversion.
The inflow method is to place this mould pressing water-soluble compound fertilizer in the delivery port department of watering, and this mould pressing water-soluble compound fertilizer waters to waiting to fertilize in the soil along with the watering to keep away from the effect to the crops root through the infiltration.
By the design, the mould pressing water-soluble compound fertilizer is applied to the soil to be fertilized by adopting an inflow method, so that the mould pressing water-soluble compound fertilizer can be fertilized along with the flow of irrigation water, the use amount of the fertilizer can be greatly saved, and the use cost is greatly reduced.
The molded water-soluble compound fertilizer foams when meeting water and diffuses along with the flow of the water, and the reaction equation is as follows: c 6 H 5 O 7 +3KHCO 3 →Ｋ 3 C 6 H 5 O 7 +3H 2 O+3CO 2 ↑。
The nitrogen adjustment is performed by increasing or decreasing the number of applications of the molded fertilizer, and 0.25Kg of nitrogen is applied or decreased for each increase or decrease.
The mould pressing water-soluble compound fertilizer is suitable for applying additional fertilizer (spike fertilizer) to rice, forest fruits and vegetables.
The citric acid content in the mould pressing water-soluble compound fertilizer is 10% -30%, and the citric acid can be used for activating nitrogen bacteria inherent to the roots of rice.
It will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in the embodiments described above without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims.
Claims (4)
1. The utility model provides a mould for preparing mould pressing dissolves water compound thoughtlessly fertile, includes die holding platform (15), and die cavity (16), its characterized in that have vertically been seted up to the inside of die holding platform (15): a lower die body (9) is coaxially arranged in the die cavity (16) close to the lower position of the die cavity, an upper die body (8) is coaxially arranged above the lower die body (9), the upper die body (8) and the lower die body (9) are oppositely arranged, a die pressing position is arranged in the die cavity (16) between the upper die body (8) and the lower die body (9), the upper die body (8) moves towards the direction close to the lower die body (9) during working and is used for die pressing compound fertilizer powder in the die pressing position, and a first powder exhaust system (4) used for exhausting air in the die pressing position and the compound fertilizer powder is arranged on the upper die body (8);
the first exhaust system (4) comprises a plurality of first exhaust holes (3) formed in the base body (1), two ends of each first exhaust hole (3) penetrate through the upper end face and the lower end face of the base body (1) respectively, and the diameter of each first exhaust hole (3) is phi 2.0-2.5 mm;
a first air flow channel (18) communicated with the upper end of the first exhaust hole (3) is formed in the end face of the base body (1), the first air flow channel (18) penetrates through the outer surface of the base body (1) respectively, and the diameter of the first air flow channel (18) is phi 0.25-0.3 mm;
an upper hydraulic rod (5) for driving the upper die body (8) to vertically move along the axis of the upper hydraulic rod is arranged above the upper die body (8), the upper die body (8) is connected with the upper hydraulic rod (5) through an upper mounting block (6), and a second exhaust system (10) is arranged on the upper mounting block (6);
the second exhaust system (10) comprises a second exhaust flow channel (17) arranged in the upper mounting block (6), the upper end of the second exhaust flow channel (17) is communicated with the outside through an exhaust port (13), a plurality of second exhaust holes (11) communicated with the second exhaust flow channel (17) are formed in the outer surface of the upper mounting block (6), the diameter of the second exhaust flow channel (17) is phi 45-50mm, and the diameter of the second exhaust holes (11) is phi 13-15 mm;
the outer surface of the upper mounting block (6) is integrally connected with a plurality of supporting blocks (12), the outer surfaces of the supporting blocks (12) are arc surfaces, a spacing distance is arranged between the outer surface of each supporting block (12) and the outer surface of the upper mounting block (6), and the shape of the outer surface surrounded by the supporting blocks (12) is matched with the shape of the inner wall of the die cavity (16);
an air outlet gap of 0.1-0.2mm is arranged between the upper end surface of the upper mounting block (6) and the mounting end of the hydraulic rod (5).
2. The mold for preparing the mold pressing water-soluble compound fertilizer as claimed in claim 1, wherein: the upper die body (8) comprises a base body (1), a circular groove is formed in the lower end face of the base body (1), and a circular ring-shaped transition section (2) integrally connected to the base body (1) is arranged on the outer side of the groove.
3. The mold for preparing the mold pressing water-soluble compound fertilizer as claimed in claim 2, wherein: the lower die body (9) is matched with the upper die body (8) in shape, an ejection mechanism is arranged below the lower die body (9), and the ejection mechanism is used for driving the lower die body (9) to move up and down in the die cavity (16) and ejecting the fertilizer block formed at the die pressing position out of the die cavity (16).
4. The mold for preparing the mold pressing water-soluble compound fertilizer as claimed in claim 3, wherein: the ejection mechanism comprises a lower hydraulic rod (14) arranged below the lower die body (9), a lower die mounting seat (7) is arranged between the lower die body (9) and the lower hydraulic rod (14), and the lower die body (9) is detachably connected with the lower hydraulic rod (14) through the lower die mounting seat (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110054059.9A CN112519302B (en) | 2021-01-15 | 2021-01-15 | Mold for preparing mold pressing water-soluble compound fertilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110054059.9A CN112519302B (en) | 2021-01-15 | 2021-01-15 | Mold for preparing mold pressing water-soluble compound fertilizer |
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| Publication Number | Publication Date |
|---|---|
| CN112519302A CN112519302A (en) | 2021-03-19 |
| CN112519302B true CN112519302B (en) | 2022-08-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110054059.9A Active CN112519302B (en) | 2021-01-15 | 2021-01-15 | Mold for preparing mold pressing water-soluble compound fertilizer |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0485004A (en) * | 1990-07-30 | 1992-03-18 | Ngk Insulators Ltd | Pressure molding device for closed-end cylindrical kneaded material |
| JPH115204A (en) * | 1997-06-18 | 1999-01-12 | Sekisui Chem Co Ltd | Device of molding hydraulic inorganic molded article |
| CN101612759A (en) * | 2008-05-16 | 2009-12-30 | 苏国干 | Ceramic adobe new process for processing and device |
| JP2011194468A (en) * | 2010-02-25 | 2011-10-06 | Kyocera Corp | Die for powder press molding |
| CN104760121A (en) * | 2014-01-08 | 2015-07-08 | 佛山市恒力泰机械有限公司 | Control method and system for variable-speed powder pressing of ceramic brick press |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6673781B2 (en) * | 2015-08-25 | 2020-03-25 | 住友電気工業株式会社 | Mold for powder molding and method for producing green compact |
| EP3388227A1 (en) * | 2017-04-13 | 2018-10-17 | Seco Tools Ab | Compacting device and method for producing a cutting insert green body by compacting a powder |
-
2021
- 2021-01-15 CN CN202110054059.9A patent/CN112519302B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0485004A (en) * | 1990-07-30 | 1992-03-18 | Ngk Insulators Ltd | Pressure molding device for closed-end cylindrical kneaded material |
| JPH115204A (en) * | 1997-06-18 | 1999-01-12 | Sekisui Chem Co Ltd | Device of molding hydraulic inorganic molded article |
| CN101612759A (en) * | 2008-05-16 | 2009-12-30 | 苏国干 | Ceramic adobe new process for processing and device |
| JP2011194468A (en) * | 2010-02-25 | 2011-10-06 | Kyocera Corp | Die for powder press molding |
| CN104760121A (en) * | 2014-01-08 | 2015-07-08 | 佛山市恒力泰机械有限公司 | Control method and system for variable-speed powder pressing of ceramic brick press |
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| CN112519302A (en) | 2021-03-19 |
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