CN105922620B - A kind of manufacture processing method of fire trapping ring core - Google Patents
A kind of manufacture processing method of fire trapping ring core Download PDFInfo
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- CN105922620B CN105922620B CN201610324690.5A CN201610324690A CN105922620B CN 105922620 B CN105922620 B CN 105922620B CN 201610324690 A CN201610324690 A CN 201610324690A CN 105922620 B CN105922620 B CN 105922620B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
-
- 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
- B30B15/022—Moulds for compacting material in powder, granular of pasta form
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Powder Metallurgy (AREA)
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Abstract
The present invention relates to the manufacture manufacture field of fire trapping ring core, a kind of manufacture processing method of fire trapping ring core is specifically disclosed, is comprised the following steps：S1：Dusty material is stirred；S2：Dusty material after above-mentioned stir is suppressed to complete hollow columnar core by mould；S3：The hollow columnar core obtained to above-mentioned steps is dried by baking processing；S4：Dried hollow columnar core is cut, two semicolumn cores are obtained.The hollow columnar core is oval body core or cylinder core.When the core produced is cylinder core, follow-up slitting operation is cut for a knife, and whole cylinder core is cut into two semicolumn cores；When the core produced is oval body core, follow-up slitting operation is cut for two knives, and whole oval body core is cut into two semicolumn cores, and two knives cut to form middle waste material.Production efficiency of the present invention is high, and core Forming Quality is good.
Description
Technical field
This patent is related to the manufacture manufacture field of fire trapping ring core, more particularly to one kind manufactures back-fire relief using compound material
The processing method for enclosing core.
Background technology
Core, as the important component of fire trapping ring, is by certain ratio by fire retardant, charcoal agent, foaming agent, adhesive etc.
Example is mixed and stirred for a kind of fire retardant intumescent core that uniform compound dusty material is made.Core currently on the market
Manufacture processing is more to be carried out using following two methods：
1st, manual powder filler section bar material enters main body（Fire trapping ring metal shell）, then carry out drying processing, Gong Renlao
Fatigue resistance is big, waste time and energy, production efficiency is low, be limited by weather and the influence of temperature can not carry out round-the-clock processing,
And due to core fails to be completely dried and it is mouldy to cause, and when core dry after occur size shortening phenomenon cause
Core loosens in main body.
2nd, with compressing method, the core of two semicylinders is come out using one set of die, then dries and is led
The assembling of body and core.But this method has the disadvantage that：
（1）Due to being restricted by the multiple wedge angle increase frictional resistance factors of mould, core is caused to hold during the material returned
Be also easy to produce straight flange sink etc. defect, being attached to after main body influences product appearance quality, and wants to can be only achieved quality requirement after feed supplement；
（2）Core, which will also carry out drying, to be handled and could put into main body, and labor strength is big, wastes time and energy, produce effect
Rate is low, and round-the-clock processing can not be carried out by being limited by the influence of weather and temperature, and because core fails to be completely dried
And cause it is mouldy, obtain core dry after and occur size shorten phenomenon and cause core to be loosened in main body.
Both the above core processing method, shortcoming is more, core length arid cycle, labor strength big, wastes time and energy, give birth to
Production inefficiency and it is limited by the influence of weather and temperature and can not carries out round-the-clock processing, therefore is not suitable for large batch of
Automated manufacturing is processed.Therefore, it is necessary to be improved to prior art.
The content of the invention
In view of this, it is low, raw it is an object of the invention to overcome the deficiencies of the prior art and provide a kind of labor strength
Produce the manufacture processing method of the fire trapping ring core of efficiency high.
In order to solve the above-mentioned technical problem, the present invention is realized using following scheme：
A kind of manufacture processing method of fire trapping ring core, comprises the following steps：
S1：Dusty material is stirred；
S2：Dusty material after above-mentioned stir is suppressed to complete hollow columnar core by mould；
S3：The hollow columnar core obtained to above-mentioned steps is dried by baking processing；
S4：Dried hollow columnar core is cut, two semicolumn cores are obtained.
In step S1, dusty material can be stirred by mixer, and the purpose is to various composition is evenly distributed, it is ensured that
The stability of the core of compacting.In step S2, mould suppresses a complete hollow columnar core, without
Be directly formed to two semicylinder moulds the influence of narrow wedge angle factor and reducing friction resistance to greatest extent, it is ensured that
The frictional resistance that core is subject to during the material returned is minimum, so as to ensure that core will not produce that straight flange sink and scarce side collapses angle
Defect.Curing process is dried in step S3, baking processing can use baking box or oven production line, can avoid
The influence of rainy weather equitemperature factor is so as to realize the round-the-clock production that goes into operation, and it is not in mouldy that core, which is arranged in main body,
Also be not in that size shortens after core is dried the phenomenon product quality that causes core to produce loosening in main body is asked etc. phenomenon
Topic.In step S4, cutting can use and cut or use cutting apparatus manually（Shearing, punching mode）Cut, cutting apparatus
Cutting is more efficient, the core of two semicolumns is obtained after cutting, the core of semicolumn forms semi-finished product together with body combination,
Two semi-finished product hasps can be assembled into complete fire trapping ring together.
The hollow columnar core is oval body core or cylinder core.
When the core produced is cylinder core, follow-up slitting operation is cut for a knife, by whole cylinder core point
It is cut into two semicolumn cores；This cutting mode is in the determination of dusty material formula rate, stirred and temperature controlled
The molding mode taken in the case that the various factors such as constant is stable, as long as the center point partial application of alignment cylinder core
Ensure that the size of two semicolumn cores reaches fitted position and tolerance.
When the core produced is oval body core, follow-up slitting operation is cut for two knives, by whole oval body core
Material cuts into two semicolumn cores, and two knives cut to form middle waste material；Middle waste material can reclaim broken utilization again, such a
Mode be do not know in dusty material formula rate, stir it is uneven and influenceed by temperature change it is big in the case of the shaping taken
Method, oval body core can adjust the distance cut twice in cutting according to actual conditions, to ensure two semicolumn cores
The size of material reaches fitted position and tolerance.
The mould includes punch-pin, cavity plate, material returned mould, core rod and adpting flange, and one end of the core rod is fixed on
On adpting flange center, the cavity plate is set on core rod and its one end is fixed with adpting flange, between the core rod and cavity plate
Formation can suppress the die cavity of core, and one end of the material returned mould is provided with alternate connecting pin, and the material returned die sleeve is set into die cavity
And its connecting pin is connected through adpting flange with material returned mould connecting plate, one end of the punch-pin is connected with punch-pin connecting plate, and its is another
One end can be arranged into die cavity formation and be slidably matched, and the punch-pin connecting plate and material returned mould connecting plate are connected to drive device.
Die cavity is formed between core rod and cavity plate, this die cavity is a continuous cavity, rather than as being divided into the prior art
The die cavity of two semicylinders, therefore in the die cavity of the present invention after powder filler material, by the compacting of punch-pin, you can prepare
Into a complete hollow columnar core, the frictional resistance that core is moved in die cavity is reduced to greatest extent, therefore can avoid
There is the phenomenon that scarce side collapses angle during the material returned in core, it is ensured that the Forming Quality of core, thickness, the width of fire trapping ring core
It is guaranteed with height dimension, it is ensured that follow-up cutting and the standardized production operation of assembly process.
The connecting pin of material returned mould is connected through adpting flange with material returned mould connecting plate, and material returned mould connecting plate can connect driving dress
Put, drive device driving material returned mould connecting plate drives material returned mould to be slidably matched in die cavity（Slide up and down）, punch-pin connection
Plate is also connected to realize that it is slidably matched in die cavity with drive device（Slide up and down）, punch-pin pushes in the pressurization of drive device
It is made after core material, punch-pin is retracted, material returned mould ejects core under the power of drive device.The connecting pin of material returned mould is alternate to be set
Put, for example, connecting pin is arranged to 4, adpting flange cuts hole provided with corresponding 4 lines, and connecting pin cuts hole cooperation with line can be real
Now to the limitation of material returned mould so that material returned mould will not produce radial rotating in die cavity.
Mould in this patent is changing the geometry of the parts such as punch-pin, core rod, cavity plate, material returned mould, such as by cylinder
Make oval body, hexahedron etc. into, it is possible to realize the processing and forming to a variety of geometrical shaped body cores.
The cavity plate is provided with material clean-up port with one end that adpting flange is mutually fixed.The setting of material clean-up port can be in the material returned
Die worker removes the waste material product block of excessive powder accumulation during making, it is ensured that mould just can be square in the case of without taking apart
Just safeguard, improve die life and production capacity.
The edge of the adpting flange is provided with prominent and flange ear separately, between the material clean-up port of the cavity plate
Form the socket connection portion corresponding with flange ear.
Adpting flange seems particularly as the part for fixing cavity plate, material returned mould, core rod, therefore the fixation of adpting flange itself
It is important, by setting flange ear, then adpting flange can be fixed on other components by flange ear, such as in frame, so that
All parts in mould are fixed.Flange ear on adpting flange forms spacing to the socket connection portion of cavity plate so that cavity plate
It is more firm with being fixedly connected for adpting flange.The alternate space of flange ear is corresponding with the material clean-up port of cavity plate, therefore,
On the premise of ensureing cavity plate and adpting flange stable connection, it is ensured that waste material accumulates the discharge of block.
The adpting flange center is provided with through hole, and one end of the core rod is provided with mutually fits with adpting flange central through hole shape
The protuberance answered.The protuberance of core rod is embedded into through hole, and through hole is preliminary to core rod progress spacing, then passes through further screw
Connection or other manner connection, can strengthen the stability of core rod in the course of the work.
The punch-pin connecting plate be provided with steam vent, can avoid punch-pin go downwards in die cavity formed seal closure space and it is difficult
To pressurize, while preventing from vacuumizing when punch-pin is up in die cavity and causing core to deform.
Further, between the core rod and adpting flange, between cavity plate and adpting flange, material returned mould connecting pin and material returned mould
Fastened between connecting plate, between punch-pin and punch-pin connecting plate by screw.Adpting flange, core rod, cavity plate, punch-pin connecting plate,
Punch-pin, material returned mould connecting pin, material returned mould connecting plate are provided with corresponding screw hole, are fastened each part by way of screw,
It is easily installed in dismounting.
Also include upper connective plate, middle yoke plate and lower linking plate, the upper connective plate is connected by the axis of guide with middle yoke plate, described middle
Plate is connected by connecting rod with lower linking plate, and pressurized cylinder is fixed with the upside of the upper connective plate（Drive device）, its piston rod runs through
Upper connective plate is connected with punch-pin connecting plate, and material returned cylinder is fixed with the downside of the lower linking plate（Drive device）, under its piston rod runs through
Yoke plate is connected with material returned mould connecting plate, and the middle yoke plate is provided with the through hole being adapted with adpting flange size, and adpting flange
Flange ear be fixedly connected with middle yoke plate.
Pressurized cylinder and material returned cylinder can be cylinder or oil cylinder, and the size of pressurization is adjusted by adjusting pressure medium.Pressurization
Cylinder can use twin shaft double action stroke adjustable type, and then adjust the compression travel of core.During adpting flange is fixed on by flange ear
On yoke plate, flange ear is provided with screw hole, is connected by screw with middle yoke plate, so as to fixed other portions after adpting flange fixation
Part.
Also include slide plate, the slide plate is arranged between pressurized cylinder piston rod end and punch-pin connecting plate and is set in guiding
On axle, its upside is connected with pressurization cylinder piston rod, and downside is connected with punch-pin connecting plate.
Slide plate is set on the axis of guide so that it is steadily slided up and down under the driving of pressurized cylinder, such as the four of square slide plate
Individual corner is set on the axis of guide, further, and the position that slide plate runs through sets linear bearing to be further ensured that slide plate slides
Stability.
The upside of the slide plate and the downside of material returned mould connecting plate by floating connection head and floating connection flange respectively with
Pressurization cylinder piston rod and the connection of material returned cylinder piston rod.The floating of connecting portion is realized by floating connection head and floating connection flange
Connection, it is ensured that the reliability of each part and long-life.
The spacing regulation dress of material returned mould that can stop that material returned line enters is fixed with the upside of the lower section of the material returned mould, lower linking plate
Put.
The material returned mould means for adjusting limit of movement includes being fixed on the nut seat of the encirclement material returned cylinder piston rod on the upside of lower linking plate,
The nut seat is provided with the hollow adjusting screw rod for surrounding pusher cylinder piston rod, and the top of the nut seat is provided with being used to lock
The back tightening nut of empty adjusting screw rod.
When material returned cylinder retract action, material returned mould slide downward in the die cavity that cavity plate and core rod are constituted, until material returned mould connects
Fishplate bar, which bumps against hollow adjusting screw rod, to be stopped.Therefore, the height stretched out by adjusting hollow adjusting screw rod in nut seat can be limited
The descending stroke of material returned mould processed changes the volume of die cavity to change powder filler material so as to realize any regulation of die cavity height
Amount number come ensure core need compactness.It can ensure that material returned mould is hit by locking back tightening nut after the completion of regulation
After will not produce loosening and conjugate.
Further, the operation of each part can be controlled by electric control system, electrical system is using prior art
Can.
The method for suppressing core rod by mould is as follows：
S21：The dusty material stirred is filled into die cavity；
S22：Drive device driving punch-pin action, dusty material is compressing, it is rear to retract；
S23：Another drive device driving material returned mould action, die cavity is ejected by compressing core.
Compared with prior art, the present invention has the advantages that：（1）Dusty material is agitated uniform, it is therefore an objective to make
Various composition is evenly distributed, it is ensured that the stability of core performance.（2）By the improvement of mould, the core shape come is suppressed
Shape is oval body or cylinder；（3）Because the shape of the major part cavity plate of mould, core rod, material returned mould and punch-pin etc. is adopted
With oval or circle it is round and smooth excessively, the influence of factor without narrow wedge angle and reducing friction resistance to greatest extent can be with
After ensureing that core is molded in cavity plate, during the material returned, the frictional resistance between core and cavity plate, core rod is minimum, prevents core
Material produces that straight flange sink and scarce side collapses the defect at angle；（4）Oval body or cylinder core are produced by baking box or oven
Processing is dried in line, can avoid the influence of rainy weather equitemperature factor to realize the round-the-clock production that goes into operation, and core
Be not in the phenomenon such as mouldy in main body, be also not in core dry after size shorten cause core to be produced in main body
The raw product quality problem loosened；（5）Oval body or cylinder core after being handled through dry solidification is enterprising in core cutting machine
Row cutting manually cuts into two semicolumn cores, the chi such as thickness, height and width of two semicolumn cores after cutting
Very little tolerance can realize strict control and ensure, it is ensured that the assembling of core and main body can realize that large batch of Automated assembly adds
Work production operation；（6）It is suitable for standardization, the production line operation of large batch of automated manufacturing processing；（7）To realize
Standard criterion mechanization and automated manufacturing processing, can improve production efficiency and product quality, reduce cost of labor and
The labor intensity of workman.
Brief description of the drawings
Fig. 1 is prior art core forming die structure schematic diagram；
Fig. 2 is the core material structure schematic diagram produced using prior art core mould；
Fig. 3 is cylinder core cutting schematic diagram in embodiment；
Fig. 4 is oval body core cutting schematic diagram in embodiment；
Fig. 5 is embodiment core mould sectional view；
Fig. 6 is embodiment forming die structure schematic diagram；
Fig. 7 is embodiment mould explosive view；
Fig. 8 embodiment mould scheme of installations；
Fig. 9 is the side view of structure shown in Fig. 8；
Figure 10 embodiment mould scheme of installations.
Embodiment
In order to allow those skilled in the art to more fully understand technical scheme, below in conjunction with the accompanying drawings to the present invention
It is further elaborated.
Embodiment
Mould of the prior art is called as shown in Figure 1, it includes punch-pin 500, cavity plate 300 and material returned mould 400, it has
There is the die cavity of two semicircular bodies, influenceed by wedge angle 301, is sunk or scarce as shown in Fig. 2 straight flange easily occurs in the core of shaping
While collapsing the defect at angle.
A kind of manufacture processing method of fire trapping ring core, comprises the following steps：
S1：Dusty material is stirred；
S2：Dusty material after above-mentioned stir is suppressed in complete cylinder or oval body by mould
Void column shape core；
S3：The hollow columnar core obtained to above-mentioned steps is dried by baking processing；
S4：Dried hollow columnar core is cut, two semicolumn cores are obtained.
As shown in figure 3, when the core produced is cylinder core, follow-up slitting operation is cut for a knife, will entirely justified
Cylinder core cuts into two semicolumn cores；
As shown in figure 4, when the core produced is oval body core, follow-up slitting operation is cut for two knives, will be whole
Individual oval body core cuts into two semicolumn cores, and two knives cut to form middle waste material.
As shown in Fig. 5 ~ 8, the mould includes punch-pin 500, cavity plate 300, material returned mould 400, core rod 200 and connection method
Orchid 100, one end of the core rod 200 is fixed on the center of adpting flange 100, the cavity plate 300 be set on core rod 200 and
Its one end is fixed with adpting flange 100, and the die cavity of core can be suppressed by being formed between the core rod 200 and cavity plate 300, described to move back
Expect that one end of mould 400 is provided with alternate connecting pin 410, the material returned mould 400 is arranged into die cavity and its connecting pin 410 runs through connection
Flange 100 is connected with material returned mould connecting plate 700, and one end of the punch-pin 500 is connected with punch-pin connecting plate 600, and its other end can
It is arranged into die cavity formation and is slidably matched.
The cavity plate 300 is provided with material clean-up port 310 with one end that adpting flange 100 is mutually fixed.The adpting flange 100
Edge provided with prominent and flange ear 110 separately, formed and flange between the material clean-up port 310 of the cavity plate 300
The corresponding socket connection portion 320 of ear 110.The center of adpting flange 100 is provided with through hole 120, and one end of the core rod 200 is set
There is the protuberance 210 being adapted with the shape of 100 central through hole of adpting flange 120.The punch-pin connecting plate 600 is provided with steam vent
610。
As shown in fig. 7, the adpting flange 100 is provided with interior hexagonal cylindrical head sunk screw 130, pass through this and core rod
200th, cavity plate 300 end connection, the punch-pin connecting plate 600 be provided with interior hexagonal cylindrical head sunk screw 620, by this with
One end connection of punch-pin 500.The material returned mould connecting plate 700 is provided with interior hexagonal cylindrical head sunk screw 710, by this with moving back
Material mould connecting pin 410 is connected.
It is as shown in Figures 8 to 10, in addition to upper connective plate 1300, middle yoke plate 1400 and lower linking plate 1500, the upper connective plate 1300
Downside be fixed with stiffener plate 1310, the downside of middle yoke plate 1400 passes through provided with upper connective plate 1300 described in stiffener plate 1410.
The axis of guide 1700 is connected with middle yoke plate 1400, and the middle yoke plate 1400 is connected by connecting rod 1800 with lower linking plate 1500, described
The upside of upper connective plate 1300 is fixed with pressurized cylinder 1100, and its piston rod is connected through upper connective plate 1300 with slide plate 1600, and piston
Floating connection head and floating connection flange are provided between bar and slide plate 1600（Not shown in figure）, the punch-pin connecting plate 600 with
The downside connection of slide plate 1600, the slide plate 1600 is set on the axis of guide 1700, and which is provided with linear bearing 1610.It is described
The downside of lower linking plate 1500 is fixed with material returned cylinder 1200, and its piston rod is connected through lower linking plate 1500 with material returned mould connecting plate 700,
And piston rod is connected by floating connection first 900 and floating connection flange 800 with material returned mould connecting plate 700, the floating connection
Flange 800 is provided with interior hexagonal cylindrical head sunk screw 810, is connected by this with material returned mould connecting plate 700.The middle yoke plate
1400 are provided with the through hole being adapted with the size of adpting flange 100, and the flange ear 110 of adpting flange 100 and middle yoke plate 1400
It is fixedly connected.
Lower section, the upside of lower linking plate 1500 of the material returned mould 400 are fixed with the material returned mould limit that can stop that material returned line enters
Position adjusting means 1900.The material returned mould means for adjusting limit of movement 1900 includes being fixed on the encirclement material returned cylinder of the upside of lower linking plate 1500
The nut seat 1910 of 1200 piston rods, the nut seat 1910 is provided with the hollow adjusting screw rod for surrounding the piston rod of charging cylinder 1200
1930, the top of the nut seat 1910 is provided with the back tightening nut 1920 for being used for locking hollow adjusting screw rod 1930.
Above-described embodiment is only the wherein specific implementation of the present invention, and it describes more specific and detailed, but can not
Therefore it is interpreted as the limitation to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art,
Without departing from the inventive concept of the premise, various modifications and improvements can be made, these obvious alternative forms are equal
Belong to protection scope of the present invention.
Claims (6)
1. a kind of manufacture processing method of fire trapping ring core, it is characterised in that comprise the following steps：
S1：Dusty material is stirred；
S2：Dusty material after above-mentioned stir is suppressed to complete hollow columnar core by mould；
S3：The hollow columnar core obtained to above-mentioned steps is dried by baking processing；
S4：Dried hollow columnar core is cut, two semicolumn cores are obtained；
Wherein, in step S2, the mould includes punch-pin, cavity plate, material returned mould, core rod and adpting flange, the core rod
One end is fixed on adpting flange center, and the cavity plate is set on core rod and its one end is fixed with adpting flange, the core rod
The die cavity of fire trapping ring core can be suppressed by being formed between cavity plate, and one end of the material returned mould is provided with alternate connecting pin, described
Material returned die sleeve sets into die cavity and its connecting pin and is connected through adpting flange with material returned mould connecting plate, one end of the punch-pin and punch-pin
Connecting plate is connected, and its other end can be arranged into die cavity formation and be slidably matched, punch-pin connecting plate and the material returned mould connecting plate difference
It is connected with drive device.
2. the manufacture processing method of fire trapping ring core according to claim 1, it is characterised in that the hollow columnar core
For oval body core or cylinder core.
3. the manufacture processing method of fire trapping ring core according to claim 2, it is characterised in that
When the core produced is cylinder core, follow-up slitting operation is cut for a knife, whole cylinder core is cut into
Two semicolumn cores；
When the core produced is oval body core, follow-up slitting operation is cut for two knives, by whole oval body core point
Two semicolumn cores are cut into, and two knives cut to form middle waste material.
4. the manufacture processing method of fire trapping ring core according to claim 1, it is characterised in that the cavity plate and connection method
Blue one end mutually fixed is provided with material clean-up port.
5. the manufacture processing method of fire trapping ring core according to claim 4, it is characterised in that set below the material returned mould
There is the nut seat for surrounding drive device piston rod, the nut seat is provided with the hollow regulation spiral shell for surrounding drive device piston rod
Bar, the top of the nut seat is provided with the back tightening nut for being used for locking hollow adjusting screw rod.
6. the manufacture processing method of fire trapping ring core according to claim 1, it is characterised in that suppressed by mould
The method of core rod is as follows：
S21：The dusty material stirred is filled into die cavity；
S22：Drive device driving punch-pin action, dusty material is compressing, it is rear to retract；
S23：Another drive device driving material returned mould action, die cavity is ejected by compressing core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610324690.5A CN105922620B (en) | 2016-05-17 | 2016-05-17 | A kind of manufacture processing method of fire trapping ring core |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610324690.5A CN105922620B (en) | 2016-05-17 | 2016-05-17 | A kind of manufacture processing method of fire trapping ring core |
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| Publication Number | Publication Date |
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| CN105922620A CN105922620A (en) | 2016-09-07 |
| CN105922620B true CN105922620B (en) | 2017-09-22 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1320520A (en) * | 2000-04-27 | 2001-11-07 | Skf诺瓦股份公司 | Method and apparatus for pressing powder material to obtain isogenous article |
| CN1570427A (en) * | 2004-05-08 | 2005-01-26 | 吴立新 | Powdered metallurgical piston ring and process for production thereof |
| CN203427228U (en) * | 2013-07-04 | 2014-02-12 | 鹤山联塑实业发展有限公司 | Punching die for fire collar main body |
| CN203680851U (en) * | 2013-12-16 | 2014-07-02 | 鹤山联塑实业发展有限公司 | Core material forming machine |
| CN105135066A (en) * | 2015-09-02 | 2015-12-09 | 鹤山联塑实业发展有限公司 | Automatic firestop collar core material production equipment and method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6431902A (en) * | 1987-07-28 | 1989-02-02 | Riken Kk | Metallic mold for compacting |
| JP3677318B2 (en) * | 1995-06-05 | 2005-07-27 | 住友電気工業株式会社 | Manufacturing method of hard ball |
-
2016
- 2016-05-17 CN CN201610324690.5A patent/CN105922620B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1320520A (en) * | 2000-04-27 | 2001-11-07 | Skf诺瓦股份公司 | Method and apparatus for pressing powder material to obtain isogenous article |
| CN1570427A (en) * | 2004-05-08 | 2005-01-26 | 吴立新 | Powdered metallurgical piston ring and process for production thereof |
| CN203427228U (en) * | 2013-07-04 | 2014-02-12 | 鹤山联塑实业发展有限公司 | Punching die for fire collar main body |
| CN203680851U (en) * | 2013-12-16 | 2014-07-02 | 鹤山联塑实业发展有限公司 | Core material forming machine |
| CN105135066A (en) * | 2015-09-02 | 2015-12-09 | 鹤山联塑实业发展有限公司 | Automatic firestop collar core material production equipment and method |
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| Publication number | Publication date |
|---|---|
| CN105922620A (en) | 2016-09-07 |
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