CN107471498A - Sealing ring adapter ring mould and its method for making sealing ring - Google Patents
Sealing ring adapter ring mould and its method for making sealing ring Download PDFInfo
- Publication number
- CN107471498A CN107471498A CN201710589321.3A CN201710589321A CN107471498A CN 107471498 A CN107471498 A CN 107471498A CN 201710589321 A CN201710589321 A CN 201710589321A CN 107471498 A CN107471498 A CN 107471498A
- Authority
- CN
- China
- Prior art keywords
- lower template
- type groove
- sealing ring
- sealing
- cope plate
- 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.)
- Pending
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 79
- 238000000034 method Methods 0.000 title claims abstract description 12
- 239000000498 cooling water Substances 0.000 claims abstract description 22
- 238000004073 vulcanization Methods 0.000 claims abstract description 15
- 238000003032 molecular docking Methods 0.000 claims abstract description 11
- 239000002994 raw material Substances 0.000 claims description 18
- 239000002390 adhesive tape Substances 0.000 claims description 16
- 230000007704 transition Effects 0.000 claims description 8
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims 1
- 239000005864 Sulphur Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 15
- 230000035800 maturation Effects 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 239000003292 glue Substances 0.000 description 4
- 239000011265 semifinished product Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/02—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means
- B29C33/04—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means using liquids, gas or steam
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/26—Sealing devices, e.g. packaging for pistons or pipe joints
- B29L2031/265—Packings, Gaskets
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Gasket Seals (AREA)
Abstract
The sealing ring adapter ring mould of the present invention and its method for making sealing ring, mould include cope plate and lower template；The lower template top surface and lower template bottom surface are formed with mutual corresponding U-type groove, the die cavity for profiled weatherstrip of U-shaped trend is formed after making cope plate and lower template matched moulds, and the cooling water channel for being used for being cooled down to the die cavity end positions is provided with cope plate and lower template；Manufacture method comprises the following steps：A. a plurality of sealing strip of strip mold cavity forming is utilized；B. two sealing strips are symmetrically placed in c. in corresponding U-type groove and vulcanization docking is completed into one end of two sealing strips；D. repeat step b c, vulcanization connection form the sealing strip of setting length；E. sealing strip is located in corresponding U-type groove, its both ends is located at the most inboard of U-type groove and is mutually vulcanized docking and form sealing ring, the method of this adapter ring mould and its manufacture sealing ring simultaneously can be molded different inner diameters (external diameter), the large scale O-ring of different line footpaths, reduce the manufacturing cost of large scale O-ring.
Description
Technical field
The present invention relates to sealing ring manufacturing field, specifically a kind of sealing ring adapter ring mould and its method for making sealing ring.
Background technology
At present, seal market is larger to the range of needs of the sealings such as O-ring, is not limited only to small dimension model
Enclose；And the O-ring for making larger specification needs that volume is larger, cost is increased mould could be molded, meanwhile, when mould volume is big
, it is necessary to which corresponding board coordinates and could smoothly produced after to a certain extent.In addition, have very in the specification of existing larger O-ring
It is the model of identical line footpath different inner diameters mostly；When producing O-ring using traditional mould pressing process, the O-ring of all different sizes
Being required for the mould of related specification could produce.When O-ring specification is larger, it is also bigger to produce required mould, specification ratio
Mould needed for being produced when more is also relatively more, and mold management corresponding to the mould of substantial amounts of big specification adds many difficulties,
Either store, receive and dispatch, the everyway such as transport is unusual labor intensive material resources.
Therefore, it is necessary to which a kind of small volume and different inner diameters can be molded, the sealing ring of the large scale O-ring of different line footpaths
Adapter ring mould, so as to which the production cost of large scale O-ring be greatly lowered.
The content of the invention
In view of this, the purpose of the present invention is the defects of overcoming in the prior art, there is provided a kind of small volume can be simultaneously molded
Different inner diameters, the sealing ring adapter ring mould of the large scale O-ring of different line footpaths, so as to which the production of large scale O-ring be greatly lowered
Cost.
The sealing ring adapter ring mould of the present invention, including cope plate and lower template；The lower template top surface and lower template bottom surface shape
Into have mutually corresponding to U-type groove, make the die cavity for profiled weatherstrip that U-shaped trend is formed after cope plate and lower template matched moulds,
And the cooling water channel for being used for being cooled down to the die cavity end positions is provided with cope plate and lower template；
Further, the die cavity is used to be molded O-type seal；
Further, the U-type groove is multiple tracks and overcoat is set layer by layer, and the length and line footpath of U-type groove gradually increase from inside to outside
Greatly；
Further, the cope plate and lower template matched moulds form the O-type seal die cavity of a variety of line footpaths；
Further, the U-type groove extends to the cope plate or the front end face of lower template；And the end face is provided with and is used for U
The end cap that type groove end is closed；
Further, the cooling water channel includes setting and passing twice through back and forth below each U-type groove close to the front end face
Sprue, the cope plate and lower template are the U-shape structure medial surface of U-shape structure corresponding with U-type groove, cope plate and lower template
Provided with the cooling water connector connected with the sprue.
The invention also discloses the method that a kind of molding of the sealing ring adapter ring described in utilization makees sealing ring, including following step
Suddenly：A. a plurality of sealing strip of strip mold cavity forming is utilized；B. two sealing strips are symmetrically placed in corresponding U-type groove,
One end of two sealing strips is set to be located at the most inboard of U-type groove and be mutually butted；C. the cope plate and lower template are subjected to matched moulds simultaneously
Keeping temperature, one end of two sealing strips is set to complete vulcanization connection；D. repeat step b-c, vulcanization connection form the close of setting length
Strip of paper used for sealing length is simultaneously cut；E. the sealing strip after cutting is placed in corresponding U-type groove, its both ends is located at U-type groove
It is most inboard and mutually vulcanization docking form sealing ring；
Further, the step a includes：A1. cooling water is injected into the cope plate and the cooling water channel of lower template, made
Die cavity oral area forms high-temperature region, transition region and low-temperature space to most inboard；A2. rubber raw material adhesive tape is put into corresponding die cavity, matched moulds
Pressurization and keeping temperature, make raw material adhesive tape respectively in the high-temperature region full maturity, transition region not exclusively maturation and low-temperature space dimension
It is immature to hold raw material；
Further, before the implementation docking in the step b and step e, the end of sealing strip sheared to be formed can phase
The 45 ° of inclined-planes mutually docked.
The beneficial effects of the invention are as follows：When carrying out sealing ring production using the sealing ring adapter ring mould of the present invention, crowded in advance
The rubber raw material adhesive tape of good suitable line footpath is put into the corresponding die cavity (in lower template U-type groove) of mould, and matched moulds pressurizes and keeps warm
Degree, after certain time, raw material adhesive tape will vulcanize maturation in mould, meanwhile, die cavity end positions are entered using cooling water channel
Row Local cooling, the vulcanization maturity of the rubber of different temperature provinces simultaneously differ, respectively high-temperature region can full maturity,
Transition region is not exclusively ripe and low-temperature space maintains raw material immature；Then the sealing strip of forming is docked, first cooling
Pipe pulls out, and bleeds off the water in cooling water channel, takes down the end cap for U-type groove end to be closed, by two semi-finished product adhesive tape
The U-shaped both sides of the corresponding die cavity of mould are placed on, wherein one is placed on the most inboard of U-shaped bottom, other end, which is stretched out outside mould, appoints
It hangs down, and the head of the raw material position of two adhesive tape is in U-shaped bottom to connecting, and matched moulds pressurizes and keeping temperature, after certain time,
While green glue stock maturation, two semi-finished product are just ideally connected together, by repeatedly vulcanization connect, adhesive tape length reach or
After the length of the girth of required production O-ring, it is possible to its length on request is cut, and in a manner described length
The vulcanization end to end of sealing strip docks to form large-sized sealing ring.This mould features compact structure, it is less demanding to board, can have
The large scale sealing ring that different size is produced on the board of size is limited, one module multiple usages (mould i.e. as sealing strip, are made again
For the docking mould of sealing strip), so as to substantially reduce the production cost of large scale sealing ring.
Brief description of the drawings
The invention will be further described with reference to the accompanying drawings and examples：
Fig. 1 is the structural representation of the present invention；
The sectional view of the lower template of Fig. 2 positions present invention.
Embodiment
Fig. 1 is the structural representation of the present invention, as illustrated, the sealing ring adapter ring mould of the present embodiment, including the He of cope plate 1
Lower template 2；The top surface of lower template 2 and the bottom surface of lower template 2 make cope plate 1 and lower template 2 formed with mutual corresponding U-type groove 3
The die cavity for profiled weatherstrip of U-shaped trend is formed after matched moulds, and is provided with and is used for the type in cope plate 1 and lower template 2
The cooling water channel that chamber end positions are cooled down；When carrying out sealing ring production using the sealing ring adapter ring mould of the present invention, in advance
The rubber raw material adhesive tape for the suitable line footpath squeezed is put into the corresponding die cavity (in lower template 2U type grooves 3) of mould, and matched moulds pressurizes and protected
Temperature is held, after certain time, raw material adhesive tape will vulcanize maturation in mould, meanwhile, using cooling water channel to die cavity both ends position
Put carry out Local cooling, the vulcanization maturity of different temperature province rubber simultaneously differs, respectively high-temperature region can completely into
Ripe, transition region is not exclusively ripe and low-temperature space maintains raw material immature, is then docked the sealing strip of forming, first cold
But pipe pulls out, and bleeds off the water in cooling water channel, takes down the end cap for U-type groove end to be closed, by two semi-finished product glue
Bar is placed on the U-shaped both sides of the corresponding die cavity of mould, wherein one is placed on the most inboard of U-shaped bottom, other end is stretched out outside mould
It is allowed to hang down, the head of the raw material position of two adhesive tape is in U-shaped bottom to connecting, and matched moulds pressurizes and keeping temperature, certain time
Afterwards, while green glue stock maturation, two semi-finished product are just ideally connected together, and are connected by repeatedly vulcanization, adhesive tape length reaches
Arrive or slightly above the length of the girth of required production O-ring after, it is possible to its length on request is cut, and in a manner described
The vulcanization end to end of long sealing strip is docked to form large-sized sealing ring, this mould features compact structure is less demanding to board, can
The large scale sealing ring of production different size on the board of limited size, one module multiple usages (mould i.e. as sealing strip,
Docking mould as sealing strip again), so as to substantially reduce the production cost of large scale sealing ring.
In the present embodiment, the die cavity is used to be molded O-type seal, and therefore, the cross section of the U-type groove 3 is semicircle.
In the present embodiment, the U-type groove 3 is multiple tracks and overcoat is set layer by layer, and the length and line footpath of U-type groove 3 are from inside to outside
Gradually increase；This arrangement can by the sealing strip die cavity of multiple different length different sizes it is compact be arranged in it is less
On mould, it is distributed in the outer part in addition, line footpath specification is big, specification is small to be distributed in the inner part, and rational distribution can be by mould
U-shaped circular arc on tool influences to be preferably minimized on the quality of final product, and the both sides of per pass U-type groove 3 are equipped with V-groove 6, work as green glue stock
When filler is slightly more, its redundance can be flowed into the space of this V-groove formation, improve product qualification rate, in addition, during production product
Intentional puts more sizing materials, allows this space substantially to fill up or be fully filled with, due to being separated by only between V-groove and primary cavity
0.2MM or smaller, part inside V-groove is gently tear-off once tearing after production comes out, and the overlap on sealing strip can be with
Tear simultaneously clean.
In the present embodiment, the cope plate 1 and the 2-in-1 mould of lower template form the O-type seal die cavity of a variety of line footpaths, so as to
To produce the large scale O-ring seal of different line footpaths.
In the present embodiment, the U-type groove 3 extends to the end face of the cope plate 1 or lower template 2；And the end face is provided with and used
In the end cap 5 for being closed the end of U-type groove 3, the cover plate can avoid rubber raw material adhesive tape from being overflowed from die cavity end face.
In the present embodiment, the cooling water channel includes setting and passing twice through back and forth under each U-type groove 3 close to the front end face
The sprue 7 of side, the cope plate 1 or lower template 2 are U-shape structure corresponding with U-type groove, cope plate 1 and lower template 2 it is U-shaped
Structure medial surface is provided with the cooling water connector connected with the sprue 7.Cooling water channel runs through the end position of U-shaped both sides at twice
Put, more effectively can reach cooling down purpose using current；All cooling water connectors all installed in the inner side of mould U-shaped, allow
Utilization of the whole pair of mould to board reaches maximization, and make it that the carrying of mould, installation are more convenient, the cooling water in sprue 7
The lower section of each die cavity end can be flowed through, so as to form respectively high-temperature region and low from U-shaped mouth portion to inside in mould
Transitional region between warm area, and height warm area.
The invention also discloses the method that a kind of molding of the sealing ring adapter ring described in utilization makees sealing ring, including following step
Suddenly：A. a plurality of sealing strip of strip mold cavity forming is utilized；B. two sealing strips are symmetrically placed in corresponding U-type groove 3,
One end of two sealing strips is set to be located at the most inboard of U-type groove 3 and be mutually butted；C. the cope plate 1 and lower template 2 are subjected to matched moulds
And keeping temperature, one end of two sealing strips is completed vulcanization connection；D. repeat step b-c, docking form the sealing of setting length
Bar length is simultaneously cut；E. the sealing strip after cutting is placed in corresponding U-type groove 3, its both ends is located at U-type groove 3
It is most inboard and mutually vulcanization docking form sealing ring；The step a includes：A1. to the cold of the cope plate 1 and lower template 2
But injection cooling water in water channel, die cavity oral area is made to most inboard formation high-temperature region, transition region and low-temperature space；A2. by rubber raw material
Adhesive tape is put into corresponding die cavity, matched moulds pressurization and keeping temperature, makes raw material adhesive tape respectively in the high-temperature region full maturity, transition region
Not exclusively ripe and low-temperature space maintains raw material immature；Before the implementation docking in the step b and step e, by sealing strip
End shear the 45 ° of inclined-planes to be formed and can be mutually butted.
Finally illustrate, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although with reference to compared with
The present invention is described in detail good embodiment, it will be understood by those within the art that, can be to the skill of the present invention
Art scheme is modified or equivalent substitution, and without departing from the objective and scope of technical solution of the present invention, it all should cover at this
Among the right of invention.
Claims (9)
- A kind of 1. sealing ring adapter ring mould, it is characterised in that：Including cope plate and lower template；The lower template top surface and lower template bottom Face makes the type for profiled weatherstrip that U-shaped trend is formed after cope plate and lower template matched moulds formed with U-type groove corresponding to mutual Chamber, and the cooling water channel for being used for being cooled down to the die cavity end positions is provided with cope plate and lower template.
- 2. sealing ring adapter ring mould according to claim 1, it is characterised in that：The die cavity is used to be molded O-type seal.
- 3. sealing ring adapter ring mould according to claim 2, it is characterised in that：The U-type groove is multiple tracks and is arranged outside layer by layer Put, the length and line footpath of U-type groove gradually increase from inside to outside.
- 4. sealing ring adapter ring mould according to claim 3, it is characterised in that：The cope plate and lower template matched moulds form more The O-type seal die cavity of kind line footpath.
- 5. sealing ring adapter ring mould according to claim 4, it is characterised in that：The U-type groove extend to the cope plate or The front end face of lower template；And the front end face is provided with the end cap for being used for being closed U-type groove end.
- 6. sealing ring adapter ring mould according to claim 5, it is characterised in that：The cooling water channel is included close to the front end Face sets and passes twice through the sprue below each U-type groove back and forth, and the cope plate and lower template are corresponding with U-type groove U-shaped The U-shape structure medial surface of structure, cope plate and lower template is provided with the cooling water connector connected with the sprue.
- 7. a kind of method that sealing ring adapter ring molding using described in claim any one of 1-6 makees sealing ring, it is characterised in that Comprise the following steps：A. a plurality of sealing strip of strip mold cavity forming is utilized；B. two sealing strips are symmetrically placed in corresponding U-type groove, one end of two sealing strips is located at the most inboard of U-type groove And it is mutually butted；C. the cope plate and lower template are subjected to matched moulds and keeping temperature, one end of two sealing strips is completed vulcanization connection；D. repeat step b-c, vulcanization connection form the sealing strip of setting length and cut；E. the sealing strip after cutting is located in corresponding U-type groove, its both ends is located at the most inboard and mutual sulphur of U-type groove Change docking and form sealing ring.
- 8. the method according to claim 7 for making sealing ring, it is characterised in that：The step a includes：A1. to described Injection cooling water in cope plate and the cooling water channel of lower template, make die cavity oral area to most inboard formation high-temperature region, transition region and low Warm area；A2. rubber raw material adhesive tape is put into corresponding die cavity, matched moulds pressurization and keeping temperature, makes raw material adhesive tape respectively in the high temperature Area's full maturity, transition region are not exclusively ripe and low-temperature space maintains raw material immature.
- 9. the method according to claim 7 for making sealing ring, it is characterised in that：Implementation in the step b and step e Before the docking, the end of sealing strip is sheared to the 45 ° of inclined-planes to be formed and can be mutually butted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710589321.3A CN107471498A (en) | 2017-07-19 | 2017-07-19 | Sealing ring adapter ring mould and its method for making sealing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710589321.3A CN107471498A (en) | 2017-07-19 | 2017-07-19 | Sealing ring adapter ring mould and its method for making sealing ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107471498A true CN107471498A (en) | 2017-12-15 |
Family
ID=60595842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710589321.3A Pending CN107471498A (en) | 2017-07-19 | 2017-07-19 | Sealing ring adapter ring mould and its method for making sealing ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107471498A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108973173A (en) * | 2018-06-22 | 2018-12-11 | 当阳市益红金属制品有限公司 | Improve the device and technique of fibre reinforced composites precision |
| CN113478858A (en) * | 2021-07-27 | 2021-10-08 | 上海熹贾精密技术有限公司 | Segmented vulcanization compression molding method for large-inner-diameter rubber O-shaped sealing ring |
| CN114043653A (en) * | 2021-11-18 | 2022-02-15 | 庐江县丰源橡胶密封件有限公司 | Flat vulcanizing machine for molding oversized sealing ring and machining method |
| CN114714653A (en) * | 2022-03-02 | 2022-07-08 | 上海威纳工程技术有限公司 | Large oil seal production process and oil seal bonding equipment |
| CN114953278A (en) * | 2022-05-16 | 2022-08-30 | 广东东晟密封科技有限公司 | Sealing washer adapter ring forming die structure |
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|---|---|---|---|---|
| SU979155A1 (en) * | 1981-03-27 | 1982-12-07 | Предприятие П/Я Р-6498 | Injection die for making rubber rings |
| SU1216018A1 (en) * | 1984-04-04 | 1986-03-07 | Мурманское Отделение Государственного Проектно-Конструкторского Института Рыбопромыслового Флота | Mould for manufacturing ring rubber articles |
| JP2002172628A (en) * | 2000-12-05 | 2002-06-18 | Daihan:Kk | Manufacturing method and device for rubber product |
| JP2004306300A (en) * | 2003-04-03 | 2004-11-04 | Nok Corp | Packing manufacturing method |
| CN102179888A (en) * | 2010-12-27 | 2011-09-14 | 东莞市新志密封技术有限公司 | Method for processing large non-standard O ring and mould device |
| CN202528357U (en) * | 2012-03-14 | 2012-11-14 | 甘肃大禹节水集团股份有限公司 | Multi-cavity mold rubber ring die |
| CN204095011U (en) * | 2014-09-25 | 2015-01-14 | 马鞍山宏力橡胶制品有限公司 | The production technology cooler of the special super large caliber rubber seal of a kind of PCCP |
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2017
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU979155A1 (en) * | 1981-03-27 | 1982-12-07 | Предприятие П/Я Р-6498 | Injection die for making rubber rings |
| SU1216018A1 (en) * | 1984-04-04 | 1986-03-07 | Мурманское Отделение Государственного Проектно-Конструкторского Института Рыбопромыслового Флота | Mould for manufacturing ring rubber articles |
| JP2002172628A (en) * | 2000-12-05 | 2002-06-18 | Daihan:Kk | Manufacturing method and device for rubber product |
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| CN102179888A (en) * | 2010-12-27 | 2011-09-14 | 东莞市新志密封技术有限公司 | Method for processing large non-standard O ring and mould device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108973173A (en) * | 2018-06-22 | 2018-12-11 | 当阳市益红金属制品有限公司 | Improve the device and technique of fibre reinforced composites precision |
| CN113478858A (en) * | 2021-07-27 | 2021-10-08 | 上海熹贾精密技术有限公司 | Segmented vulcanization compression molding method for large-inner-diameter rubber O-shaped sealing ring |
| CN114043653A (en) * | 2021-11-18 | 2022-02-15 | 庐江县丰源橡胶密封件有限公司 | Flat vulcanizing machine for molding oversized sealing ring and machining method |
| CN114714653A (en) * | 2022-03-02 | 2022-07-08 | 上海威纳工程技术有限公司 | Large oil seal production process and oil seal bonding equipment |
| CN114953278A (en) * | 2022-05-16 | 2022-08-30 | 广东东晟密封科技有限公司 | Sealing washer adapter ring forming die structure |
| CN114953278B (en) * | 2022-05-16 | 2023-10-27 | 广东东晟密封科技有限公司 | Sealing washer connects circle forming die structure |
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Application publication date: 20171215 |