CN106626243A - A preparing method and an injection compression mould for a glass fiber reinforced nylon track gauge baffle plate - Google Patents
A preparing method and an injection compression mould for a glass fiber reinforced nylon track gauge baffle plate Download PDFInfo
- Publication number
- CN106626243A CN106626243A CN201510724510.8A CN201510724510A CN106626243A CN 106626243 A CN106626243 A CN 106626243A CN 201510724510 A CN201510724510 A CN 201510724510A CN 106626243 A CN106626243 A CN 106626243A
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- mould
- plates
- cover half
- backing plate
- glass fiber
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- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
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- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/40—Removing or ejecting moulded articles
- B29C45/4005—Ejector constructions; Ejector operating mechanisms
- B29C45/401—Ejector pin constructions or mountings
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- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
- B29C45/47—Means for plasticising or homogenising the moulding material or forcing it into the mould using screws
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
- B29C45/57—Exerting after-pressure on the moulding material
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
A preparing method and an injection compression mould for a glass fiber reinforced nylon track gauge baffle plate are disclosed. The injection compression mould for the glass fiber reinforced nylon track gauge baffle plate includes a fixed mould and a moving mould under the fixed mould. The fixed mould includes a fixed-mould fixing plate, a fixed-mould cushion plate, a needle valve type hot runner system, a pressing block, a cavity insert and a mould A plate. The moving mould includes a moving-mould fixing plate, an ejector rod fixing plate, ejector rods, a mould core insert and a mould B plate. The ejector rod fixing plate is above the moving-mould fixing plate. The ejector rods are mounted on the ejector rod fixing plate. The mould core insert is mounted on the mould B plate. The pressing block, the cavity insert and the mould core insert form a cavity used for moulding the track gauge baffle plate. Through the method and the mould, the risk of shrinkage cavity formation in a thick-wall part of the track gauge baffle plate is obviously reduced, safety in a track gauge baffle plate applying process is improved, glass fiber orientation in a product moulding process is improved, moulding precision can be controlled more easily, and the production cost of the track gauge baffle plate is reduced.
Description
Technical field
The present invention relates to mould molding technical field.
Background technology
Gauge apron is for trapped orbit and adjusts the fastener of track space.
Glass fiber enhanced nylon 66 gauge apron is a typical thick-walled plastic product, at present with injection molding technology preparation.But traditional injection molding technology is not suitable for producing the larger gauge apron of wall thickness.Shrinkage cavity can be produced at the heavy wall of the gauge apron being molded, while the deformation of product is difficult control, the disqualification rate for causing gauge apron remains high.The main reason for causing the problems referred to above is the pressure maintaining period of injection mo(u)lding, whole plastic products can only be compacted by the cast gate of sectional area very little, nearly gate location, pressure is higher, remote gate location pressure is relatively low, causes the pressure distribution of interiors of products uneven, causes the gross distortion of product；Simultaneously for thick article, the cooling of cast gate prior to product heavy wall at, so as to cause pressurize feed supplement at product heavy wall insufficient, so that in cooling procedure, shrinkage cavity is formed at heavy wall.
Recently as fast development from railway to high-speed overload direction, glass fibre（GF）Enhanced nylon（PA）66 are used widely as a kind of engineering plastics for having higher intensity, higher rigidity, excellent fatigue durability and wear resistance than common PA in railway clothing arts.The heavy wall gauge apron that reinforced plastic PA66 makes is the structural member for adjusting gauge, the transverse horizontal thrust of transmission rail, is the accessory of critical product on rail, and the requirement to its property indices is very strict.At present nylon66 fiber gauge apron is mainly with injection molding production.For gauge apron, because the wall thickness of product is larger and skewness, traditional Shooting Technique is difficult to control the fiber-wall-element model inside product and buckling deformation, and dwell pressure just no longer plays a part of pressurize after gate freeze, so as to cause that shrinkage cavity is also easy to produce at heavy wall, the quality and service life of product are badly influenced.Accordingly, it would be desirable to seek a kind of new technology, fundamentally solve the problems, such as that the deformation of glass fiber enhanced nylon 66 gauge apron is serious, while reducing the risk that product inside produces shrinkage cavity.
At present, glass fiber enhanced nylon 66 gauge apron completes to prepare using injection molding technology.Using injection machine by glass fiber enhanced nylon 66 material fusion plastification, then by the running gate system of mould, melt is injected into molding mold cavity with high speed, high pressure, melt cooling and shaping under higher dwell pressure, product is ejected after die sinking, complete gauge apron shaping whole process, main moulding process flow process, as shown in Figure 1.The process mould therefor is needle-valve type hot flow passage mold, and in injection and pressure maintaining period, needle is to open, and melt can be injected into mold cavity；When Shooting Technique is switched to cooling by pressurize, the needle of hot flow path is closed, the melt meeting cooling and shaping in die cavity, there will be no melt to be supplemented in die cavity.
In prior art, the Chinese invention patent of Application No. 201210201687.6 discloses one kind can temperature keeping forming mold fast to assemble, this patent disclosed that a kind of injection forming mold for producing gauge apron, but its innovative point is for can quickly assembly and disassembly, ensure temperature constant simultaneously, the prior art is not for significantly reducing producing the risk of shrinkage cavity at gauge apron heavy wall.
The content of the invention
The technical problem to be solved is to provide a kind of preparation method and injection-compression mould of glass fiber enhanced nylon gauge apron, and it can substantially reduce producing the risk of shrinkage cavity at gauge apron heavy wall, lift the security in gauge apron application process；Improve glass orientation during formed product simultaneously, the formed precision for making product is easily controlled, and reduces gauge apron production cost.
The technical scheme is that:A kind of glass fiber enhanced nylon gauge apron injection-compression mould, including cover half, the dynamic model below cover half.The cover half includes cover half fixed plate, cover half backing plate, needle valve type hot runner system, briquetting, cavity block, mould A plates；The cover half backing plate and needle valve type hot runner system are installed in cover half fixed plate；Briquetting is arranged on cover half backing plate, in needle valve type hot runner system embedded cover half backing plate and briquetting；Mould A plates connect cover half backing plate, and spring is provided between mould A plates and cover half backing plate, and distance is maintained between mould A plates and cover half backing plate, and mould A plates can be contacted by compression spring with cover half backing plate；The cavity block is arranged on mould A plates.The dynamic model includes dynamic mould fixing plate, push rod fixed plate, ejection push rod, core insert, mould B plates；The push rod fixed plate is located above dynamic mould fixing plate, and ejection push rod is arranged in push rod fixed plate；The mould B plates are arranged on dynamic mould fixing plate, and the core insert is arranged on mould B plates；The briquetting, cavity block and core insert constitute together the die cavity for being molded gauge apron.
The briquetting is fixed on cover half backing plate by soket head cap screw one.
The mould A plates are by soket head cap screw two and bolt connection cover half backing plate；Soket head cap screw two is arranged on cover half backing plate, and bolt is movably arranged on mould A plates, and the upper end of bolt is threaded connection mode and connects with the internal thread hole being engaged with soket head cap screw two, soket head cap screw two and bolt；The spring is sleeved on bolt periphery, the top and bottom of spring connect respectively with cover half backing plate and mould A plates, mould A plates and cover half backing plate are made in released state by spring effect, when promoting mould A plates, mould A plate energy compression springs, is contacted with cover half backing plate along bolt movement.
The mould A plates are engaged with mould B plates, and its composition surface is die joint.
The mould B plates are arranged on dynamic mould fixing plate by two pieces of support plates, and push rod fixed plate and ejection push rod are located between two pieces of support plates, and the upper end of ejection push rod connects with die cavity.
A kind of preparation method of glass fiber enhanced nylon gauge apron, gauge apron is produced using method for injection compression molding, using whole die cavity upper surface or lower surface, homogeneous compaction is carried out to melt in die cavity, so as to realize gauge apron product internal stress and glass orientation be uniformly distributed.
The preparation method of described glass fiber enhanced nylon gauge apron, using injection machine and above-mentioned glass fiber enhanced nylon gauge apron injection-compression mould；Comprise the steps：
1）Glass fiber enhanced nylon gauge apron injection-compression mould is installed on injection machine；
2）Screw in injection molding machine carries out fusion plastification to glass fiber enhanced nylon 66 material, is measured according still further to predetermined melt volume, completes the preparation for injecting compression process；
3）Mould matched moulds, cavity block and core insert are completely attached to, and mold parting surface is closed completely, and provide mold clamping force by the spring in compressive state；And make to maintain distance between cover half backing plate and mould A plates, the distance between cover half backing plate and mould A plates are compression distance, used as the stroke of follow-up die cavity compression；
4）The needle-valve of needle valve type hot runner system hot mouth is opened, and melt is injected into die cavity；After the completion of injection, the needle-valve of hot mouth is closed, and melt cannot enter back into die cavity, and now the die cavity of mould is not filled with full；
5）Dynamic model overcomes the power of spring, continues to be moved to cover half, and core insert to cover half direction is moved, until compression distance is zero；Briquetting completes the compression to melt in die cavity；Now die cavity is fully populated with by melt, and melt is gradually cooled down in the presence of die cavity compression pressure, forms gauge apron product；
6）After gauge apron part cooling, injection machine ejecting mechanism promotes push rod fixed plate and ejection push rod, ejection push rod to eject gauge apron product.
The present invention produces gauge apron using injection compression molding technology, reduced overall is carried out to melt therein using die cavity, cast gate pressurize in substitute traditional injection moulding technique, make the pressure distribution in product more uniform, realize product internal stress and glass orientation be uniformly distributed, so as to lift the formed precision of product, reduce producing the risk of shrinkage cavity at heavy wall.The present invention is by injection compression molding technology first Application in the preparation of glass fiber enhanced nylon gauge apron, using whole die cavity upper surface or lower surface, homogeneous compaction is carried out to melt in chamber, the pressurize technique in traditional injection moulding forming technique is substituted, so as to lift the Forming Quality of glass fiber enhanced nylon 66 gauge apron.
Using the present invention, the risk that shrinkage cavity is produced at gauge apron heavy wall is can obviously reduce, lift the security in gauge apron application process；Improve glass orientation during formed product simultaneously, the formed precision for making product is easily controlled, and reduces gauge apron production cost.
Description of the drawings
Fig. 1 is Shooting Technique flow chart of the prior art.
Fig. 2 is the injection compression process chart in the present invention.
Fig. 3 is the glass fiber enhanced nylon gauge apron injection-compression mould structure in the present invention（Die joint closure state）Schematic diagram.
Fig. 4 is the glass fiber enhanced nylon gauge apron injection-compression mould structure in the present invention（State after die cavity compression）Schematic diagram.
Description of reference numerals：Cover half fixed plate 1, cover half backing plate 2, soket head cap screw 1, briquetting 4, needle valve type hot runner system 5, soket head cap screw 26, spring 7, bolt 8, mould A plates 9, cavity block 10, mould B plates 11, core insert 12, ejection push rod 13, push rod fixed plate 14.
Specific embodiment
The present invention prepares glass fiber enhanced nylon 66 gauge apron using injection compression molding technology.Injection compression molding technology carries out homogeneous compaction to melt in chamber using whole die cavity upper surface or lower surface, the pressurize technique in traditional injection moulding forming technique is substituted, so as to the Forming Quality of improving product.As shown in Fig. 2 injection compression molding technological process includes that plastic molten melt plasticizing, delicate metering, mould matched moulds, needle-valve opening carry out melt injection（Needle-valve is closed after the completion of injection）, die cavity compression, part cooling, mould die sinking, product ejection etc. step.
Glass fiber enhanced nylon gauge apron injection-compression mould structure as shown in Figure 3, Figure 4, structure explanation：
1st, die joint above section is cover half, is partly dynamic model below die joint.Cover half fixed plate 1 and the Main Function of dynamic mould fixing plate 15 are that active and inactive mold is fixed on injection machine.
2nd, cover half backing plate 2 is fixed in cover half fixed plate 1.Needle valve type hot runner system 5 is fixed in cover half fixed plate, while in embedded cover half backing plate 2 and briquetting 4.
3rd, briquetting 4 is fixed on cover half backing plate 2 using soket head cap screw 1.Briquetting 4 constitutes the die cavity of mould together with cavity block 10, core insert 12, for being molded gauge apron product.
4th, mould A plates 9 are fixed on into cover half backing plate 2 using soket head cap screw 26 and bolt 8 with threaded hole.Using being enclosed within bolt 8, the spring 7 in compressive state makes two plates be in released state.This section of detached distance, the range of as follow-up die cavity compression.
5th, cavity block 10 is fixed on mould A plates 9, and core insert 12 is fixed on mould B plates 11.Mould A plates 9 are die joint with the composition surface of mould B plates 11.
6th, eject push rod 13 to be fixed in push rod fixed plate 14, for the product after ejection cooling.
Injection compression molding technological process, as shown in Figure 2.It is described as follows：
1st, injection-compression mould is installed on injection machine, cover half is fixed in injection machine cover half fixed plate, and dynamic model is fixed on injection machine dynamic mould fixing plate.
2nd, screw in injection molding machine carries out fusion plastification to glass fiber enhanced nylon 66 material, and according still further to the melt volume needed for product delicate metering is carried out, and completes the preparation for injecting compression process.
3rd, mould matched moulds, cavity block and core insert are completely attached to, and mold parting surface is closed completely, and provide mold clamping force by the spring 7 in compressive state, as shown in Figure 3, Figure 4.The mold clamping force is mainly used in resisting the impulsive force that melt injection process is produced, and prevents die joint from separating.But still there is a segment distance between cover half backing plate and mould A plates, used as the stroke of follow-up die cavity compression, the state of mould is as shown in Figure 3.
4th, the needle-valve of the hot mouth of needle valve type hot runner 5 is opened, and melt is quantitatively expelled to mold cavity.After the completion of injection, the needle-valve of hot mouth is closed, and melt cannot enter back into die cavity, and now the die cavity of mould is not filled with full.
5th, dynamic model overcomes the power of spring, continues to be moved to cover half, and cavity block is moved with core insert to cover half direction, and till compression distance is reduced to 0, briquetting completes the compression to melt in die cavity.Now die cavity is fully populated with by melt, and melt is gradually cooled down in the presence of die cavity compression pressure.
6th, after part cooling, injection machine ejecting mechanism promotes push rod fixed plate, ejection push rod to eject product.
Injection-compression mould in the present invention is based on traditional injection moulding mould, to increase die cavity compression function, substitutes traditional cast gate pressurize, realizes being uniformly distributed for product internal stress and glass orientation, the formed precision of improving product.
The preferred embodiments of the present invention are the foregoing is only, the present invention is not limited to, for a person skilled in the art, the present invention there can be various modifications and variations.All any modification, equivalent substitution and improvements within the spirit and principles in the present invention, made etc., are all contained within protection scope of the present invention.
Claims (10)
1. a kind of glass fiber enhanced nylon gauge apron injection-compression mould, including cover half, the dynamic model below cover half,
It is characterized in that,
The cover half includes cover half fixed plate, cover half backing plate, needle valve type hot runner system, briquetting, cavity block, mould A plates；The cover half backing plate and needle valve type hot runner system are installed in cover half fixed plate；Briquetting is arranged on cover half backing plate, in needle valve type hot runner system embedded cover half backing plate and briquetting；Mould A plates connect cover half backing plate, and spring is provided between mould A plates and cover half backing plate, and distance is maintained between mould A plates and cover half backing plate, and mould A plates can be contacted by compression spring with cover half backing plate；The cavity block is arranged on mould A plates；
The dynamic model includes dynamic mould fixing plate, push rod fixed plate, ejection push rod, core insert, mould B plates；The push rod fixed plate is located above dynamic mould fixing plate, and ejection push rod is arranged in push rod fixed plate；The mould B plates are arranged on dynamic mould fixing plate, and the core insert is arranged on mould B plates；The briquetting, cavity block and core insert constitute together the die cavity for being molded gauge apron.
2. glass fiber enhanced nylon gauge apron injection-compression mould according to claim 1, is characterized in that, the briquetting is fixed on cover half backing plate by soket head cap screw one.
3. glass fiber enhanced nylon gauge apron injection-compression mould according to claim 1, is characterized in that, the mould A plates are by soket head cap screw two and bolt connection cover half backing plate；Soket head cap screw two is arranged on cover half backing plate, and bolt is movably arranged on mould A plates, and the upper end of bolt is threaded connection mode and connects with the internal thread hole being engaged with soket head cap screw two, soket head cap screw two and bolt；The spring is sleeved on bolt periphery, and the top and bottom of spring connect respectively with cover half backing plate and mould A plates, makes mould A plates and cover half backing plate be in released state by spring effect；When promoting mould A plates, mould A plate energy compression springs, contact with cover half backing plate along bolt movement.
4. glass fiber enhanced nylon gauge apron injection-compression mould according to claim 1, is characterized in that, the mould A plates are engaged with mould B plates, and its composition surface is die joint.
5. glass fiber enhanced nylon gauge apron injection-compression mould according to claim 1, it is characterized in that, the mould B plates are arranged on dynamic mould fixing plate by two pieces of support plates, and push rod fixed plate and ejection push rod are located between two pieces of support plates, and the upper end of ejection push rod connects with die cavity.
6. a kind of preparation method of glass fiber enhanced nylon gauge apron, it is characterized in that, gauge apron is produced using method for injection compression molding, using whole die cavity upper surface or lower surface, homogeneous compaction is carried out to melt in die cavity, so as to realize gauge apron product internal stress and glass orientation be uniformly distributed.
7. the preparation method of glass fiber enhanced nylon gauge apron according to claim 6, is characterized in that, using the glass fiber enhanced nylon gauge apron injection-compression mould described in injection machine and claim 1；Comprise the steps：
1）Glass fiber enhanced nylon gauge apron injection-compression mould is installed on injection machine；
2）Screw in injection molding machine carries out fusion plastification to glass fiber enhanced nylon 66 material, is measured according still further to predetermined melt volume, completes the preparation for injecting compression process；
3）Mould matched moulds, cavity block and core insert are completely attached to, and mold parting surface is closed completely, and provide mold clamping force by the spring in compressive state；And make to maintain distance between cover half backing plate and mould A plates, the distance between cover half backing plate and mould A plates are compression distance, used as the stroke of follow-up die cavity compression；
4）The needle-valve of needle valve type hot runner system hot mouth is opened, and melt is injected into die cavity；After the completion of injection, the needle-valve of hot mouth is closed, and melt cannot enter back into die cavity, and now the die cavity of mould is not filled with full；
5）Dynamic model overcomes the power of spring, continues to be moved to cover half, and core insert to cover half direction is moved, until compression distance is zero；Briquetting completes the compression to melt in die cavity；Now die cavity is fully populated with by melt, and melt is gradually cooled down in the presence of die cavity compression pressure, forms gauge apron product；
6）After gauge apron part cooling, injection machine ejecting mechanism promotes push rod fixed plate and ejection push rod, ejection push rod to eject gauge apron product.
8. the preparation method of glass fiber enhanced nylon gauge apron according to claim 7, is characterized in that, the briquetting is fixed on cover half backing plate by soket head cap screw one；The mould A plates are engaged with mould B plates, and its composition surface is die joint.
9. the preparation method of glass fiber enhanced nylon gauge apron according to claim 7, is characterized in that, the mould A plates are by soket head cap screw two and bolt connection cover half backing plate；Soket head cap screw two is arranged on cover half backing plate, and bolt is movably arranged on mould A plates, and the upper end of bolt is threaded connection mode and connects with the internal thread hole being engaged with soket head cap screw two, soket head cap screw two and bolt；The spring is sleeved on bolt periphery, and the top and bottom of spring connect respectively with cover half backing plate and mould A plates, makes mould A plates and cover half backing plate be in released state by spring effect；When promoting mould A plates, mould A plate energy compression springs, contact with cover half backing plate along bolt movement.
10. the preparation method of glass fiber enhanced nylon gauge apron according to claim 7, it is characterized in that, the mould B plates are arranged on dynamic mould fixing plate by two pieces of support plates, and push rod fixed plate and ejection push rod are located between two pieces of support plates, and the upper end of ejection push rod connects with die cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510724510.8A CN106626243B (en) | 2015-11-02 | 2015-11-02 | A kind of preparation method and injection-compression mould of glass fiber enhanced nylon gauge apron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510724510.8A CN106626243B (en) | 2015-11-02 | 2015-11-02 | A kind of preparation method and injection-compression mould of glass fiber enhanced nylon gauge apron |
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| Publication Number | Publication Date |
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| CN106626243A true CN106626243A (en) | 2017-05-10 |
| CN106626243B CN106626243B (en) | 2019-02-15 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107443687A (en) * | 2017-09-04 | 2017-12-08 | 遵义群建塑胶制品有限公司 | A kind of air-conditioning moulding injection mold and injection moulding process with contraction distortion control |
| CN112038238A (en) * | 2020-08-31 | 2020-12-04 | 青岛歌尔微电子研究院有限公司 | Manufacturing method of frame, plastic packaging method of module and manufacturing method of SIP module |
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| EP1938946A1 (en) * | 2005-06-30 | 2008-07-02 | Nissha Printing Co., Ltd. | Compression molding method and device therefor |
| CN202702525U (en) * | 2012-03-26 | 2013-01-30 | 卢晓楠 | Plastic end cover double parting surface injection mold |
| CN103128924A (en) * | 2013-03-05 | 2013-06-05 | 北京化工大学常州先进材料研究院 | Fixed die compressible die |
| CN104149272A (en) * | 2014-07-15 | 2014-11-19 | 天津理工大学 | Injection compression molding composite mould |
| CN205058498U (en) * | 2015-11-02 | 2016-03-02 | 株洲时代新材料科技股份有限公司 | Glass fiber reinforced nylon gauge apron injects compression mold |
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2015
- 2015-11-02 CN CN201510724510.8A patent/CN106626243B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| EP1938946A1 (en) * | 2005-06-30 | 2008-07-02 | Nissha Printing Co., Ltd. | Compression molding method and device therefor |
| CN202702525U (en) * | 2012-03-26 | 2013-01-30 | 卢晓楠 | Plastic end cover double parting surface injection mold |
| CN103128924A (en) * | 2013-03-05 | 2013-06-05 | 北京化工大学常州先进材料研究院 | Fixed die compressible die |
| CN104149272A (en) * | 2014-07-15 | 2014-11-19 | 天津理工大学 | Injection compression molding composite mould |
| CN205058498U (en) * | 2015-11-02 | 2016-03-02 | 株洲时代新材料科技股份有限公司 | Glass fiber reinforced nylon gauge apron injects compression mold |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107443687A (en) * | 2017-09-04 | 2017-12-08 | 遵义群建塑胶制品有限公司 | A kind of air-conditioning moulding injection mold and injection moulding process with contraction distortion control |
| CN112038238A (en) * | 2020-08-31 | 2020-12-04 | 青岛歌尔微电子研究院有限公司 | Manufacturing method of frame, plastic packaging method of module and manufacturing method of SIP module |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106626243B (en) | 2019-02-15 |
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