CN107263884A - A kind of super large caliber PTFE tube part paste extrusion preparation method and its extrusion equipment - Google Patents
A kind of super large caliber PTFE tube part paste extrusion preparation method and its extrusion equipment Download PDFInfo
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- CN107263884A CN107263884A CN201710313889.2A CN201710313889A CN107263884A CN 107263884 A CN107263884 A CN 107263884A CN 201710313889 A CN201710313889 A CN 201710313889A CN 107263884 A CN107263884 A CN 107263884A
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- large caliber
- tube
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Classifications
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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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
-
- 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
- B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
- B29C67/02—Moulding by agglomerating
- B29C67/04—Sintering
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/9258—Velocity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
- B29K2027/12—Use of polyvinylhalogenides or derivatives thereof as moulding material containing fluorine
- B29K2027/18—PTFE, i.e. polytetrafluorethene, e.g. ePTFE, i.e. expanded polytetrafluorethene
-
- 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
- B29L2023/00—Tubular articles
- B29L2023/22—Tubes or pipes, i.e. rigid
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
Preparation method is extruded the invention discloses a kind of super large caliber PTFE tube part paste, including raw material mixing, it is preforming, extrusion molding, the speed of extrudate, location tracking, feedback signal is to extruder control, the position measurement of product and feedback control, the preparation method of polytetrafluoroethyldispersion dispersion resin pipe shaped article after sinter molding, super large caliber PTFE tube sintering.The invention also discloses a kind of super large caliber PTFE tube part paste extrusion equipment, the extrusion driving part being sequentially connected including coaxial line, thrust assemblies, mandrel component, material tube, extrusion die, thermoforming component, extrude the afterbody that driving part is arranged on frame, one end of thrust assemblies is connected with extrusion driving part, one end connection of the other end and mandrel component, material tube is arranged on the front portion of frame, extrusion die is installed in the port of export of material tube, mandrel component passes through the center of material tube and extrusion die, thermoforming modular support is in the front of frame and concentric with material tube.
Description
Technical field
The present invention relates to the production method of fluorine plastic tube and production equipment technical field, and in particular to a kind of super large caliber
PTFE tube part paste extrudes preparation method and its extrusion equipment.
Background technology
Polytetrafluoroethylene (PTFE) (PTFE) has electrical insulating property optimal in all plastics, chemical stability, corrosion resistance, is to work as
Modern one of decay resistance optimal material in the world.However, polytetrafluoroethyldispersion dispersion resin (PTFE) but has extremely narrow phase transformation
Scope and loose resilient characteristic, so that it is difficult to be extruded as ordinary thermoplastics or injection molding.With breast
The fine powder (PTFE dispersion resins) that liquid polymerization is made, adds appropriate organic solvent and pasty mixture is made and is squeezed wherein
Go out, be the conventional production method of PTFE dispersion resins.But this production method can not continuously be given birth to due to PTFE particularity
The running status by control production line various pieces manually is needed in production, production process, and the work of operating personnel is passed through
Test and there are certain requirements, manual operation load is big in production process, and product stability is influenceed substantially by operation.In conventional like product
In production, the experience and proficiency of operating personnel determine the quality level of finished product.In paste extrusion molding production PTFE products
The stability for ensureing product is vital, in order to meet the polytetrafluoroethylene (PTFE) point that market needs production is continuous, uniform, stable
Dissipate resin (PTFE) product, it is necessary to change existing production technology by introducing automated production.Carrying out PTFE extrusion systems
In the production of product, by the automatic improving to production line, on-line measurement and location technology are introduced, production line each several part is run
Parameter automatically adjusts, and effectively the amount of lightening one's labor and can improve the quality of production, and especially higher in product length, size will
Ask in strict process of producing product, Automated condtrol it is with the obvious advantage.Therefore, the present invention is in polytetrafluoroethyldispersion dispersion resin
(PTFE) automatic control system is introduced in method production, so that there is provided a kind of continuous, uniform, stable production polytetrafluoroethylene (PTFE)
The method of dispersion resin (PTFE) product.
Country's paste extrusion molding produces the PTFE a small amount of Introduced From Abroad sophisticated equipment of enterprise and automation control system at present,
Introduce cost big, and supply not in time.
The content of the invention
It is an object of the present invention to overcome defect present in prior art to improve PTFE points there is provided a set of autocontrol method
Production of resins technology is dissipated, the amount of labour is effectively reduced, the quality of production is stable, the homogeneous polytetrafluoroethyldispersion dispersion resin of performance (PTFE)
Extruded product, meets the strict demand in market.
To achieve the above object, prepared the technical scheme is that designing a kind of super large caliber PTFE tube part paste extrusion
Method, methods described is mixed including raw material, preforming, extrusion molding, the speed of extrudate, location tracking, and feedback signal is to squeezing
Go out the position measurement of product and feedback control after machine control, sinter molding, super large caliber PTFE tube sintering, polytetrafluoroethylene (PTFE) disperses
The preparation method of resin (PTFE) pipe shaped article：
S1：Raw material is mixed：By polytetrafluoroethyldispersion dispersion resin (PTFE)+solvent (Mobil ISOPAR G) press 10%~20% ratio
Example fully, is uniformly mixed at low temperature, and agitator speed is less than 30 revs/min during mixing, mixes 5~20 minutes；
S2：16~24h of mixed raw material room temperature, temperature is between 20 DEG C to 50 DEG C；
S3：Mixed raw material enters mould and carries out precompressed, and prefabricating oil cylinder pressure is 5MPa, and precompressed temperature 50 C forms outward appearance
Good cylindricality mold base；
S4：Mold base is pushed into pushing machine, and material cylinder temperature is 20~40 DEG C, pushes to form the pipe of length necessarily by mould
Part；
S5：After extruding pipe material model outlet, position and extruded velocity after being extruded using grating measuring pipe fitting, and by feedback letter
Number extruder is passed back to, pushing is controlled according to measurement result by automatic control system；
S6：Tubing after extrusion molding is entered into sintering furnace and carries out high temperature sintering, sintering temperature is at 300~400 DEG C, and the time is 30
~40 seconds；
S7：Quenching Treatment is carried out to the tubing after sintering.
Compared with traditional handicraft, the solvent that mixed material formula of the present invention is used is Mobil (ISOPAR G) industrial naptha,
Different from conventional solvent gasoline, polytetrafluoroethyldispersion dispersion resin (PTFE) and solvent and mixability were so both improved, had been carried again
The high stability of product.Solvent composition in mixed material formula is also with the species of polytetrafluoroethyldispersion dispersion resin (PTFE)
Change.
Secondly, it was found from above-mentioned production technology, a kind of polytetrafluoroethyldispersion dispersion resin (PTFE) automatic production method, to ensure
Obtain product diametrically stable and with certain length, production of the present invention in polytetrafluoroethyldispersion dispersion resin (PTFE) product
Cheng Zhong,
The control method of production line is improved, optimal balance point is found between speed and transfer rate pushing, by automatically controlling
System is controlled, so as to produce continuous-stable and have the product of the performance of certain length.What is used in the present invention automatically controls
System is widely used in various industrial process, but this system is used for into polytetrafluoroethyldispersion dispersion resin (PTFE) product manufacturing,
Key is suitable link to be monitored.The sampling period of automatic control system unrestricted choice between 5 seconds to 1 second,
Extruded velocity is adjusted by control system after exceeding prescribed limit for extrudate speed or position.The present invention will be automatically controlled
System successfully introduces the production of tetrafluoroethene dispersion resin (PTFE) tubing, obtains excellent effect.
Wherein preferred technical scheme is that the solvent used accounts for mix for Mobil (ISOPAR G) solvent naphtha
10%~20% percentage by weight, component proportion changes with resin types.
It is preferred that technical scheme also have, the tubing enter sintering furnace carry out high temperature sintering when using temperature section control
Method be sintered.
It is preferred that technical scheme also have, the pushing process uses Automated condtrol.
Further preferred technical scheme also has, and the Automated condtrol is coordinated type control system, right during pushing
Each several part is monitored+feedback control.
It is another object of the present invention to overcoming defect present in prior art, there is provided a set of automatic control equipment
PTFE dispersion resin production technologies are improved, the amount of labour is effectively reduced, the quality of production is stable, and the homogeneous polytetrafluoroethylene (PTFE) of performance disperses
Resin (PTFE) extruded product, meets the strict demand in market.
To achieve the above object, another technical scheme of the invention is that a kind of super large caliber PTFE tube part paste of design is squeezed
Go out equipment, the paste extrusion equipment includes the extrusion driving part that coaxial line is sequentially connected, thrust assemblies, mandrel component, original
Barrel, extrusion die, thermoforming component, the extrusion driving part are arranged on the afterbody of frame, and one end of thrust assemblies is with squeezing
Go out driving part to connect, one end of the other end and mandrel component is connected, and the material tube is arranged on the front portion of frame, in material tube
The port of export extrusion die is installed, the mandrel component is through the center of material tube and extrusion die, the thermoforming component
It is supported on the front of frame and concentric with material tube.
Wherein preferred technical scheme is that the extrusion driving part is hydraulic press.
The advantages of the present invention are：The super large caliber PTFE tube part paste extrusion preparation method is a set of
Autocontrol method improves PTFE dispersion resin production technologies, is effectively reduced the amount of labour, and the quality of production is stable, and performance is homogeneous
Polytetrafluoroethyldispersion dispersion resin (PTFE) extruded product, meets the strict demand in market.Methods described is also and its perfect work
Skill technology.There is provided binary mixture recipes and by automatic control system with semi-automatic polytetrafluoroethyldispersion dispersion resin
(PTFE) production method, not only obtains the extruded material with good heat resisting and pressure resisting performance, and be made length length and
The tubing having good uniformity.Polytetrafluoroethyldispersion dispersion resin (PTFE) the product size error of production is less than 1%, is one kind poly- four
PVF dispersion resin (PTFE) automatic production method.
And the super large caliber PTFE tube part paste extrusion equipment has simple in construction, production efficiency height, it is ensured that production
Quality reaches design requirement, the stable feature of performance.It can prevent from extruding " half-cooked " while strengthening the resin of calenderability again and helping crowded
Agent proportioning is strict controlled in 100：16.31.
Brief description of the drawings
Fig. 1 is the structural representation of super large caliber PTFE tube part paste extrusion equipment of the present invention.
In figure：1st, driving part is extruded；2nd, thrust assemblies；3rd, mandrel component；4th, material tube；5th, extrusion die；6、PTFE
Paste extruding pipe；7th, thermoforming component；8th, frame.
Embodiment
With reference to the accompanying drawings and examples, the embodiment to the present invention is further described.Following examples are only
For clearly illustrating technical scheme, and it can not be limited the scope of the invention with this.
The present invention is a kind of super large caliber PTFE tube part paste extrusion preparation method, and methods described is mixed including raw material, in advance
Shaping, extrusion molding, the speed of extrudate, location tracking, feedback signal is to extruder control, sinter molding, super large caliber
The position measurement of product and feedback control, the preparation of polytetrafluoroethyldispersion dispersion resin (PTFE) pipe shaped article after PTFE tube sintering
Method：
S1：Raw material is mixed：By polytetrafluoroethyldispersion dispersion resin (PTFE)+solvent (Mobil ISOPAR G) press 10%~20% ratio
Example fully, is uniformly mixed at low temperature, and agitator speed is less than 30 revs/min during mixing, mixes 5~20 minutes；
S2：16~24h of mixed raw material room temperature, temperature is between 20 DEG C to 50 DEG C；
S3：Mixed raw material enters mould and carries out precompressed, and prefabricating oil cylinder pressure is 5MPa, and precompressed temperature 50 C forms outward appearance
Good cylindricality mold base；
S4：Mold base is pushed into pushing machine, and material cylinder temperature is 20~40 DEG C, pushes to form the pipe of length necessarily by mould
Part；
S5：After extruding pipe material model outlet, position and extruded velocity after being extruded using grating measuring pipe fitting, and by feedback letter
Number extruder is passed back to, pushing is controlled according to measurement result by automatic control system；
S6：Tubing after extrusion molding is entered into sintering furnace and carries out high temperature sintering, sintering temperature is at 300~400 DEG C, and the time is 30
~40 seconds；
S7：Quenching Treatment is carried out to the tubing after sintering.
Compared with traditional handicraft, the solvent that mixed material formula of the present invention is used is Mobil (ISOPAR G) industrial naptha,
Different from conventional solvent gasoline, polytetrafluoroethyldispersion dispersion resin (PTFE) and solvent and mixability were so both improved, had been carried again
The high stability of product.Solvent composition in mixed material formula is also with the species of polytetrafluoroethyldispersion dispersion resin (PTFE)
Change.Secondly, it was found from above-mentioned production technology, a kind of polytetrafluoroethyldispersion dispersion resin (PTFE) automatic production method, to protect
Card obtains product diametrically stable and with certain length, production of the present invention in polytetrafluoroethyldispersion dispersion resin (PTFE) product
During, the control method of production line is improved, optimal balance point is found between speed and transfer rate pushing, by controlling automatically
System control processed, so as to produce continuous-stable and have the product of the performance of certain length.The automatic control used in the present invention
System processed is widely used in various industrial process, but this system is used for into polytetrafluoroethyldispersion dispersion resin (PTFE) product system
Make, it is important to suitable link is monitored.The sampling period of automatic control system unrestricted choice between 5 seconds to 1 second,
Extruded velocity is adjusted by control system after extrudate speed or position exceed prescribed limit.The present invention will be automatically controlled
System successfully introduces the production of tetrafluoroethene dispersion resin (PTFE) tubing, obtains excellent effect.
To the equation of control system：
X=Ax+Bu, Y=CX
X：State variable；A：State matrix；B：Input matrix；U：Input variable
Y：Output variable；C：Output matrix
C={ 10 00 }
In this, it is assumed that X is the speed variables during product pushing, when some Xi changes, other variables can also be adjusted therewith
Whole, final system feeds back to the unified speed of an entirety.
The preferred embodiment of the invention is that the solvent used accounts for mixing and matched somebody with somebody for Mobil (ISOPAR G) solvent naphtha
Expect 10%~20% percentage by weight, component proportion changes with resin types.
The preferred embodiment of the invention also has, and enters in the tubing when sintering furnace carries out high temperature sintering using temperature point
The method of section control is sintered.
The preferred embodiment of the invention also has, and the pushing process uses Automated condtrol.
Further preferred technical scheme also has, and the Automated condtrol is coordinated type control system, right during pushing
Each several part is monitored+feedback control.
Set as shown in figure 1, the another embodiment of the present invention is a kind of super large caliber PTFE tube part paste extrusion of design
Standby, the paste extrusion equipment includes extrusion driving part 1, thrust assemblies 2, mandrel component 3, the raw material that coaxial line is sequentially connected
Cylinder 4, extrusion die 5, thermoforming component 7, the extrusion driving part 1 are arranged on the afterbody of frame 8, one end of thrust assemblies 2
It is connected with extrusion driving part 1, the other end is connected with one end of mandrel component 3, the material tube 4 is arranged on the front portion of frame 8,
Extrusion die 5 is installed in the port of export of material tube 4, the mandrel component 3 passes through the center of material tube 4 and extrusion die 5, institute
State thermoforming component 7 and be supported on the front of frame 8 and concentric with material tube 4.
The preferred embodiment of the invention is that the extrusion driving part 1 is hydraulic press.
The operation principle explanation of super large caliber PTFE tube part paste extrusion equipment of the present invention：
Die assembly 5 is arranged on the port of export of material tube 4；By the preheating material of thermoforming component 7；By prefabricated PTFE embryos
Material, is put into material tube 4；Mandrel component 3 is installed；The extrusion high-power hydraulic presses of driving part 1-- are opened, thrust assemblies 2 are connect
PTFE embryo materials are touched, are pushed by predetermined speed；Pass through the prefabricated pipe fitting of PTFE pastes extruding pipe 6；Prefabricated pipe fitting passes through thermoforming component 7
Out, it is exactly the production tube of PTFE paste extruding pipes.
The proportioning of PTFE embryo materials and prefabricated condition；The speed of service and operating pressure of high-power hydraulic press；Mandrel component and
The cooperation adjustment of die assembly, it is ensured that prefabricated pipe has the wall thickness and bias of OK range；The two-stage temperature control of thermoforming component,
Ensure that prefabricated pipe passes through suitable sintering process, being capable of the qualified production tube of output.These conditions are indispensable.
Finished product PTFE pastes extruding pipe detects that performance reaches same kind of products at abroad technical conditions by every.
Product the key technical indexes or economic indicator：
A. 116 × 2mm of caliber φ；
B. tensile strength (longitudinal direction) >=25MPa；Tensile strength (transverse direction) >=26Mpa；
C. it is broken norminal strain (longitudinal direction)≤450%；It is broken norminal strain (transverse direction)≤250%；
D. density >=2g/cm3；
E. breakdown voltage (exchange) >=35KV；
F. it is≤10% that longitudinal size, which changes (260 DEG C/3h),.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, some improvements and modifications can also be made, these improvements and modifications
Also it should be regarded as protection scope of the present invention.
Claims (7)
1. a kind of super large caliber PTFE tube part paste extrudes preparation method, methods described is mixed including raw material, preforming, is extruded into
Type, the speed of extrudate, location tracking, feedback signal is produced to extruder control, sinter molding, super large caliber PTFE tube after sintering
The position measurement of product and feedback control, it is characterised in that the preparation side of polytetrafluoroethyldispersion dispersion resin (PTFE) pipe shaped article
Method：
S1：Raw material is mixed：By polytetrafluoroethyldispersion dispersion resin (PTFE)+solvent (Mobil ISOPAR G) press 10%~20% ratio
Example fully, is uniformly mixed at low temperature, and agitator speed is less than 30 revs/min during mixing, mixes 5~20 minutes；
S2：16~24h of mixed raw material room temperature, temperature is between 20 DEG C to 50 DEG C；
S3：Mixed raw material enters mould and carries out precompressed, and prefabricating oil cylinder pressure is 5MPa, and precompressed temperature 50 C forms outward appearance
Good cylindricality mold base；
S4：Mold base is pushed into pushing machine, and material cylinder temperature is 20~40 DEG C, pushes to form the pipe of length necessarily by mould
Part；
S5：After extruding pipe material model outlet, position and extruded velocity after being extruded using grating measuring pipe fitting, and by feedback letter
Number extruder is passed back to, pushing is controlled according to measurement result by automatic control system；
S6：Tubing after extrusion molding is entered into sintering furnace and carries out high temperature sintering, sintering temperature is at 300~400 DEG C, and the time is 30
~40 seconds；
S7：Quenching Treatment is carried out to the tubing after sintering.
2. super large caliber PTFE tube part paste as claimed in claim 1 extrudes preparation method, it is characterised in that the use
Solvent is Mobil (ISOPAR G) solvent naphtha, accounts for the percentage by weight of mix 10%~20%, component proportion is with resin types
Change.
3. super large caliber PTFE tube part paste as claimed in claim 1 extrudes preparation method, it is characterised in that in the tubing
The method controlled when carrying out high temperature sintering into sintering furnace using temperature section is sintered.
4. super large caliber PTFE tube part paste as claimed in claim 1 extrudes preparation method, it is characterised in that described to push
Cheng Caiyong Automated condtrols.
5. super large caliber PTFE tube part paste as claimed in claim 4 extrudes preparation method, it is characterised in that the automation
Control for coordinated type control system, to be monitored each several part during pushing+feedback control.
6. a kind of super large caliber PTFE tube part paste extrusion equipment, it is characterised in that the paste extrusion equipment includes coaxial line
Extrusion driving part, thrust assemblies, mandrel component, material tube, extrusion die, the thermoforming component being sequentially connected, the extrusion
Driving part is arranged on the afterbody of frame, and one end of thrust assemblies is connected with extruding driving part, the other end and mandrel component
One end is connected, and the material tube is arranged on the front portion of frame, and extrusion die, the mandrel group are provided with the port of export of material tube
Part is through the center of material tube and extrusion die, and the thermoforming modular support is in the front of frame and concentric with material tube.
7. super large caliber PTFE tube part paste extrusion equipment as claimed in claim 6, it is characterised in that the extrusion drive division
Part is hydraulic press.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108908923A (en) * | 2018-07-06 | 2018-11-30 | 东莞市宇辰绝缘材料有限公司 | A kind of polyfluortetraethylene pipe technique |
| CN108928008A (en) * | 2018-07-06 | 2018-12-04 | 东莞市宇辰绝缘材料有限公司 | A kind of teflon rod technique |
| CN110480975A (en) * | 2019-07-25 | 2019-11-22 | 青岛大学 | A kind of full-automatic plunger type PTFE strip extruder of efficient stable |
| CN111791449A (en) * | 2020-07-29 | 2020-10-20 | 泰州市光明电子材料有限公司 | Polytetrafluoroethylene extrusion pipe forming equipment |
| CN111844675A (en) * | 2020-08-03 | 2020-10-30 | 江阴市江南氟塑有限公司 | Extrusion preparation method of PTFE (Polytetrafluoroethylene) high-density paste extrusion pipe with caliber of more than 400 |
| CN113024975A (en) * | 2021-02-24 | 2021-06-25 | 浙江科赛新材料科技有限公司 | Large-diameter thin-wall polytetrafluoroethylene pasty extrusion pipe and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108908923A (en) * | 2018-07-06 | 2018-11-30 | 东莞市宇辰绝缘材料有限公司 | A kind of polyfluortetraethylene pipe technique |
| CN108928008A (en) * | 2018-07-06 | 2018-12-04 | 东莞市宇辰绝缘材料有限公司 | A kind of teflon rod technique |
| CN110480975A (en) * | 2019-07-25 | 2019-11-22 | 青岛大学 | A kind of full-automatic plunger type PTFE strip extruder of efficient stable |
| CN111791449A (en) * | 2020-07-29 | 2020-10-20 | 泰州市光明电子材料有限公司 | Polytetrafluoroethylene extrusion pipe forming equipment |
| CN111844675A (en) * | 2020-08-03 | 2020-10-30 | 江阴市江南氟塑有限公司 | Extrusion preparation method of PTFE (Polytetrafluoroethylene) high-density paste extrusion pipe with caliber of more than 400 |
| CN113024975A (en) * | 2021-02-24 | 2021-06-25 | 浙江科赛新材料科技有限公司 | Large-diameter thin-wall polytetrafluoroethylene pasty extrusion pipe and preparation method thereof |
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Application publication date: 20171020 |