CN107088951A - A kind of aluminum nitride ceramic powder is into base hydraulic press - Google Patents
A kind of aluminum nitride ceramic powder is into base hydraulic press Download PDFInfo
- Publication number
- CN107088951A CN107088951A CN201710217391.6A CN201710217391A CN107088951A CN 107088951 A CN107088951 A CN 107088951A CN 201710217391 A CN201710217391 A CN 201710217391A CN 107088951 A CN107088951 A CN 107088951A
- Authority
- CN
- China
- Prior art keywords
- guard box
- plate
- punching
- fixed plate
- product
- 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.)
- Granted
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
- B28B3/02—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form
- B28B3/08—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form with two or more rams per mould
- B28B3/086—The rams working in different directions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B13/00—Feeding the unshaped material to moulds or apparatus for producing shaped articles; Discharging shaped articles from such moulds or apparatus
- B28B13/04—Discharging the shaped articles
- B28B13/06—Removing the shaped articles from moulds
- B28B13/065—Removing the shaped articles from moulds by applying electric current or other means of discharging, e.g. pneumatic or hydraulic discharging means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B17/00—Details of, or accessories for, apparatus for shaping the material; Auxiliary measures taken in connection with such shaping
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
- B28B3/02—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form
- B28B3/025—Hot pressing, e.g. of ceramic materials
Abstract
The present invention relates to a kind of aluminum nitride ceramic powder into base hydraulic press, it is characterised in that：Including upper shaping mechanism, working chamber and lower shaping mechanism；Bellows is respectively arranged with by being filled with inert gas in guard box, and on the outside of the joining place with guard box, the leakage of inert gas is reduced；Aluminum nitride powder powder stock hot extrusion molding again after preheating, then product reduce the internal stress of product by the internal stress of remaining temperature elimination product, improve the mechanical performance and quality of product；Aluminium nitride ceramics makes lower float plate drive fixed plate displacement by outer Driven by Hydraulic Cylinder when the demoulding, so as to drive be connected in fixed plate next to rush at application micro-pressure；So that aluminium nitride ceramics thin-walled is not susceptible to fracture when negative template is pulled down in the demoulding；Product quality of the aluminium nitride ceramics in the demoulding is improved, defect rate is reduced.
Description
Technical field
The present invention relates to aluminium nitride manufacture field, more particularly to a kind of aluminum nitride ceramic powder is into base press.
Background technology
With the raising and the development of great power LED of high power module circuit level, to insulated substrate material used
Material proposes higher requirement, and aluminium nitride ceramics material is various high-power due to higher thermal conductivity, being widely used to
The dielectric substrate material of electronic original part.However, in some miniaturized application fields, in addition to higher thermal conductivity, also
Ask aluminum nitride ceramic substrate that there is higher mechanical performance, especially in the thin plate that thickness is less than 0.38mm, it is desirable to nitrogenize
Aluminium ceramic substrate has higher bending strength.
In the bracket application of the heat-radiating substrate or semiconductor devices of some (PCC) powers, in order to obtain preferable mechanicalness
Can and thermal shock resistance, what common aluminium nitride ceramics was used be injected into base and hydraulic powder comes with some shortcomings it into base
Place；
The compressing processing of the general product small for the high-quality internal stress of the oxidizable high accuracy of aluminium nitride ceramics product is compared
Difficulty, many enterprises are processed by the way of the compacting of non-powder, and the production efficiency of such product is low and costly,
Defect rate is high；It is direct drop-down negative template so that product is spilt in the demoulding during hydraulic powder pressing mode used now
Former, but the operation causes this small article of aluminium nitride ceramics to easily cause the object of small shape when removing pressure suddenly
Edge occur fracture or edge situation about integrally dropping occurs, cause defect rate very high.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of aluminum nitride ceramic powder into base hydraulic press, nitridation can solve the problem that
Aluminium ceramics internal stress when hydraulic powder is processed is big, easily occurs thin-walled portion when mechanical performance is not enough and aluminium nitride is stripped into base
The problem of fracture.
In order to solve the above technical problems, the technical scheme is that：A kind of aluminum nitride ceramic powder into base hydraulic press, its
Innovative point is：Including upper shaping mechanism, working chamber and lower shaping mechanism；
The upper shaping mechanism include Master cylinder body, on rush piston rod, sliding block, upper punching, negative template, guide pillar；Piston rod is rushed on described
One end be arranged in Master cylinder body, on rush the other end of piston rod and be connected with punching；The edge of the sliding block passes through guide pillar and the moon
Template is connected, and the circular hole that piston rod is rushed on fixed is provided with sliding block；On rush the outer wall of piston rod and be fixed on the circular hole of sliding block
Driving sliding block is moved along guide pillar in vertical direction；
The working chamber includes bellows and guard box；The bellows be connected to sliding block bottom and guard box top it
Between, the bottom of the guard box is connected on negative template；The top of the guard box, which is provided with, accommodates the through hole punched through, protects
Filled with inert gas in protecting box；Charging aperture, discharging opening and glove port are respectively arranged with the side wall of the guard box；In guard box
Product laydown platform, product pre-heating station are inside installed；
The lower shaping mechanism include former, Xia Yichong, following two punch, Xia Sanchong, plug, fixed plate, lower float plate, workbench,
Lower pulling plate and central cylinder；Fixed plate is to be provided with to accommodate following two punch, lower three punchings and plug in the middle of the lower section with negative template, fixed plate
Through hole；Former, Xia Yichong, following two punch, lower three punchings and plug are disposed with negative template from outside to inside；Next punching
Bottom be connected with next punching, next punching is located between negative template and fixed plate and the bottom of next punching is connected to fixation
On plate；The following two punch, Xia Sanchong are connected to following two punch plate and lower three punching, and following two punch plate is located at lower three punching to be fixed
Move in the through hole of plate and along the through hole in the vertical direction of fixed plate；
The bottom of the fixed plate is connected in lower float plate, and the bottom of lower float plate is connected with outer hydraulic cylinder；Outer hydraulic cylinder drives
Dynamic lower floating strip moves fixed plate movement, so as to drive next punching in the vertical direction displacement；The bottom of the plug is by one
Central cylinder driving plug passes through the center of lower three punchings；The central cylinder is installed on the table；
The lower pulling plate is located at the lower section of workbench, and lower pulling plate is connected by pillar with negative template, and lower pulling plate is driven by central cylinder
Vertically displacement.
Further, the inert gas poured in the guard box is nitrogen.
Further, the product laydown platform in guard box on product pre-heating station with being provided with thermal insulation board.
Further, it is provided with anti-gas-leak buffering area outside the charging aperture and discharging opening of guard box.
The advantage of the invention is that：
1）By using the mode of guard box, inert gas is filled with guard box so that aluminium nitride powder is when compressing
It is more safe and reliable；By being provided with anti-gas-leak buffering area on the outside of guard box, and outer with the joining place of guard box
Side is respectively arranged with bellows, reduces the leakage of inert gas；
2）It is provided with product laydown platform and product pre-heating station in guard box, products material hot extrusion molding again after preheating,
Then product eliminates the internal stress of product by remaining temperature, reduces the internal stress of product, improves the mechanical performance and quality of product,
Add service life；
3）Aluminium nitride ceramics makes lower float plate drive fixed plate displacement by outer Driven by Hydraulic Cylinder, so as to drive when the demoulding
Next rush at being connected in fixed plate applies a micro-pressure；So that aluminium nitride ceramics thin-walled the demoulding when negative template pull down when
It is not susceptible to fracture；Product quality of the small article part in the demoulding is improved, defect rate is reduced.
Brief description of the drawings
The present invention is further detailed explanation with reference to the accompanying drawings and detailed description.
Fig. 1 for the present invention aluminum nitride ceramic powder into base hydraulic press.
Fig. 2 for the present invention aluminum nitride ceramic powder into base hydraulic press working chamber top view.
Fig. 3 for the present invention aluminum nitride ceramic powder into base hydraulic press part A enlarged drawings.
Embodiment
The following examples can make professional and technical personnel that the present invention is more fully understood, but therefore not send out this
It is bright to be limited among described scope of embodiments.
A kind of aluminum nitride ceramic powder as shown in Figure 1 to Figure 3 is into base hydraulic press, including upper shaping mechanism 1, working chamber 2
With lower shaping mechanism 3.
Upper shaping mechanism 1 include Master cylinder body 11, on rush piston rod 12, sliding block 13, it is upper punching 14, negative template 15, guide pillar 16；Institute
State rush piston rod 12 one end be arranged on Master cylinder body 11 in, on rush piston rod 12 the other end be connected with punching 14；The cunning
The edge of block 13 is connected by guide pillar 16 with negative template 15, and the circular hole that piston rod 12 is rushed on fixed is provided with sliding block 13；Upper punching
The outer wall of piston rod 12, which is fixed on the circular hole of sliding block 13, drives sliding block 13 to be moved along guide pillar 16 in vertical direction.
Working chamber 2 includes bellows 21 and guard box 22；The bellows 21 is connected to bottom and the guard box of sliding block 13
Between 22 top, the bottom of the guard box 22 is connected on negative template 15；The top of the guard box 22 is provided with receiving
Filled with inert gas in the through hole that upper punching 14 is passed through, guard box 22；Charging aperture is respectively arranged with the side wall of the guard box 22
221st, discharging opening 222 and glove port 223；Product laydown platform 224, product pre-heating station 225 are installed in guard box 22.
Lower shaping mechanism 3 rushes 34, plug 35, fixed plate 36 including former 31, next punching 32, following two punch 33, lower three, floated downward
Dynamic plate 37, workbench 38, lower pulling plate 39 and central cylinder 30；Fixed plate 36 is to be opened in the middle of the lower section with negative template 15, fixed plate 36
There is the through hole for accommodating following two punch 33, lower three punchings 34 and plug 35；On negative template 15 in be disposed with from outside to inside former 31,
Next punching 32, following two punch 33, lower three punchings 34 and plug 35；The bottom of next punching 32 is connected with next punching 321, Xia Yichong
Plate 321 is located between the negative template 15 and fixed plate 36 and bottom of next punching 321 and is connected in fixed plate 36；The following two punch
33rd, lower three punching 34 is connected to following two punch plate 331 and lower three punching 341, and following two punch plate 33 is located at lower three punching 341 to be fixed
Move in the through hole of plate 36 and along the through hole in the vertical direction of fixed plate 36.
The bottom of fixed plate 36 is connected in lower float plate 37, and the bottom of lower float plate 37 is connected with outer hydraulic cylinder 371；Outside
The lower float plate 37 of the driving of hydraulic cylinder 371 drives fixed plate 36 to move, so as to drive next in the vertical direction displacement of punching 321；
The bottom of the plug 35 drives plug 35 through the center of lower three punchings 34 by a central cylinder 30；The central cylinder 30 is arranged on work
Make on platform 38.
Lower pulling plate 39 is located at the lower section of workbench 38, and lower pulling plate 39 is connected by pillar with negative template 15, lower pulling plate 39 by
Central cylinder 30 drives vertically displacement.
The inert gas poured in guard box 22 is nitrogen.
Product laydown platform 224 in guard box 22 on product pre-heating station 225 with being provided with thermal insulation board.
The charging aperture 221 of guard box 22 outside discharging opening 222 with being provided with anti-gas-leak buffering area.
It should be understood by those skilled in the art that, the present invention is not limited to the above embodiments, above-described embodiment and explanation
Merely illustrating the principles of the invention described in book, without departing from the spirit and scope of the present invention, the present invention also have
Various changes and modifications, these changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention
By appended claims and its equivalent thereof.
Claims (4)
1. a kind of aluminum nitride ceramic powder is into base hydraulic press, it is characterised in that：Including upper shaping mechanism, working chamber and lower forming machine
Structure；
The upper shaping mechanism include Master cylinder body, on rush piston rod, sliding block, upper punching, negative template, guide pillar；Piston rod is rushed on described
One end be arranged in Master cylinder body, on rush the other end of piston rod and be connected with punching；The edge of the sliding block passes through guide pillar and the moon
Template is connected, and the circular hole that piston rod is rushed on fixed is provided with sliding block；On rush the outer wall of piston rod and be fixed on the circular hole of sliding block
Driving sliding block is moved along guide pillar in vertical direction；
The working chamber includes bellows and guard box；The bellows be connected to sliding block bottom and guard box top it
Between, the bottom of the guard box is connected on negative template；The top of the guard box, which is provided with, accommodates the through hole punched through, protects
Filled with inert gas in protecting box；Charging aperture, discharging opening and glove port are respectively arranged with the side wall of the guard box；In guard box
Product laydown platform, product pre-heating station are inside installed；
The lower shaping mechanism include former, Xia Yichong, following two punch, Xia Sanchong, plug, fixed plate, lower float plate, workbench,
Lower pulling plate and central cylinder；Fixed plate is to be provided with to accommodate following two punch, lower three punchings and plug in the middle of the lower section with negative template, fixed plate
Through hole；Former, Xia Yichong, following two punch, lower three punchings and plug are disposed with negative template from outside to inside；Next punching
Bottom be connected with next punching, next punching is located between negative template and fixed plate and the bottom of next punching is connected to fixation
On plate；The following two punch, Xia Sanchong are connected to following two punch plate and lower three punching, and following two punch plate is located at lower three punching to be fixed
Move in the through hole of plate and along the through hole in the vertical direction of fixed plate；
The bottom of the fixed plate is connected in lower float plate, and the bottom of lower float plate is connected with outer hydraulic cylinder；Outer hydraulic cylinder drives
Dynamic lower floating strip moves fixed plate movement, so as to drive next punching in the vertical direction displacement；The bottom of the plug is by one
Central cylinder driving plug passes through the center of lower three punchings；The central cylinder is installed on the table；
The lower pulling plate is located at the lower section of workbench, and lower pulling plate is connected by pillar with negative template, and lower pulling plate is driven by central cylinder
Vertically displacement.
2. a kind of aluminum nitride ceramic powder according to claim 1 is into base hydraulic press, it is characterised in that：In the guard box
The inert gas poured is nitrogen.
3. a kind of aluminum nitride ceramic powder according to claim 1 is into base hydraulic press, it is characterised in that：Production in guard box
Product laydown platform on product pre-heating station with being provided with thermal insulation board.
4. a kind of aluminum nitride ceramic powder according to claim 1 is into base hydraulic press, it is characterised in that：In entering for guard box
Material mouth outside discharging opening with being provided with anti-gas-leak buffering area.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611081681 | 2016-11-30 | ||
| CN2016110816814 | 2016-11-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107088951A true CN107088951A (en) | 2017-08-25 |
| CN107088951B CN107088951B (en) | 2019-05-21 |
Family
ID=59649105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710217391.6A Active CN107088951B (en) | 2016-11-30 | 2017-04-05 | A kind of aluminum nitride ceramic powder is at base hydraulic press |
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| Country | Link |
|---|---|
| CN (1) | CN107088951B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111745784A (en) * | 2020-06-22 | 2020-10-09 | 合肥科晶材料技术有限公司 | Ceramic sample ultrafast forming hot press |
| CN117260932A (en) * | 2023-11-16 | 2023-12-22 | 内蒙古工业大学 | Pressing tool for preparing aluminum nitride complex phase ceramic |
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|---|---|---|---|---|
| DE19814487A1 (en) * | 1998-04-01 | 1999-10-14 | Eckart Doege | Locking arrangement for forming tools used for powder pressing, precision forging, thixoforging, injection pressing, injection molding etc. |
| CN201566151U (en) * | 2009-11-12 | 2010-09-01 | 南通天王液压成套厂 | Powder molding hydrodynamic press |
| KR20130001565A (en) * | 2011-06-27 | 2013-01-04 | 서순식 | Manufacturing apparatus of segments for cutting/polishing tool and manufacturing method thereof |
| CN204020041U (en) * | 2014-08-28 | 2014-12-17 | 南通中液液压机有限公司 | Full-automatic multiple stage rank powder product molding hydraulic press |
| CN104353830A (en) * | 2014-11-11 | 2015-02-18 | 南通富仕液压机床有限公司 | Upper-three lower-five dry powder automatic forming formwork |
| CN205218029U (en) * | 2015-11-30 | 2016-05-11 | 南通国谊锻压机床有限公司 | Two time two last pulverulent product trimmers |
| CN105562685A (en) * | 2016-03-09 | 2016-05-11 | 宁波钉子博士磁性技术有限公司 | Nd-Fe-B powder molding press |
-
2017
- 2017-04-05 CN CN201710217391.6A patent/CN107088951B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19814487A1 (en) * | 1998-04-01 | 1999-10-14 | Eckart Doege | Locking arrangement for forming tools used for powder pressing, precision forging, thixoforging, injection pressing, injection molding etc. |
| CN201566151U (en) * | 2009-11-12 | 2010-09-01 | 南通天王液压成套厂 | Powder molding hydrodynamic press |
| KR20130001565A (en) * | 2011-06-27 | 2013-01-04 | 서순식 | Manufacturing apparatus of segments for cutting/polishing tool and manufacturing method thereof |
| CN204020041U (en) * | 2014-08-28 | 2014-12-17 | 南通中液液压机有限公司 | Full-automatic multiple stage rank powder product molding hydraulic press |
| CN104353830A (en) * | 2014-11-11 | 2015-02-18 | 南通富仕液压机床有限公司 | Upper-three lower-five dry powder automatic forming formwork |
| CN205218029U (en) * | 2015-11-30 | 2016-05-11 | 南通国谊锻压机床有限公司 | Two time two last pulverulent product trimmers |
| CN105562685A (en) * | 2016-03-09 | 2016-05-11 | 宁波钉子博士磁性技术有限公司 | Nd-Fe-B powder molding press |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111745784A (en) * | 2020-06-22 | 2020-10-09 | 合肥科晶材料技术有限公司 | Ceramic sample ultrafast forming hot press |
| CN117260932A (en) * | 2023-11-16 | 2023-12-22 | 内蒙古工业大学 | Pressing tool for preparing aluminum nitride complex phase ceramic |
| CN117260932B (en) * | 2023-11-16 | 2024-01-26 | 内蒙古工业大学 | Pressing tool for preparing aluminum nitride complex phase ceramic |
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| Publication number | Publication date |
|---|---|
| CN107088951B (en) | 2019-05-21 |
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