CN110228255A - A kind of complex pneumatic pipe and its manufacture craft - Google Patents
A kind of complex pneumatic pipe and its manufacture craft Download PDFInfo
- Publication number
- CN110228255A CN110228255A CN201910640345.6A CN201910640345A CN110228255A CN 110228255 A CN110228255 A CN 110228255A CN 201910640345 A CN201910640345 A CN 201910640345A CN 110228255 A CN110228255 A CN 110228255A
- Authority
- CN
- China
- Prior art keywords
- layer
- tpee
- hot melt
- melt adhesive
- pneumatic pipe
- 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
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
- 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
- B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
-
- 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
- B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
- B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B1/00—Layered products having a general shape other than plane
- B32B1/08—Tubular products
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/554—Wear resistance
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/558—Impact strength, toughness
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/582—Tearability
- B32B2307/5825—Tear resistant
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/714—Inert, i.e. inert to chemical degradation, corrosion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2597/00—Tubular articles, e.g. hoses, pipes
Abstract
The invention discloses a kind of complex pneumatic pipe and its manufacture crafts, it includes the TPEE layer of the nylon layer of outer layer, the hot melt adhesive layer in middle layer and inner layer, their composition by weight are as follows: nylon layer 18.4%-22.8%, 4.5%-7.1%, TPEE layers of hot melt adhesive layer are 70.9%-76.3%；Its each thickness degree are as follows: nylon layer 0.2-0.25mm, 0.05-0.08mm, TPEE layers of hot melt adhesive layer are 0.9-0.97mm.The present invention provides a kind of complex pneumatic pipe and its manufacture craft, the specific composition range can make the complex pneumatic pipe produced have sea water resistance, salt spray resistance etch, impact resistance, tear-resistant, creep resistant, wear-resisting, a series of excellent comprehensive performances such as oil resistant and chemical resistance, it is not only able to satisfy pneumatic door and switchs frequent needs, and simple process, it is easy to implement mechanization, automation, improves production efficiency.
Description
Technical field
The present invention relates to a kind of multiple tube, specially a kind of complex pneumatic pipe and its manufacture craft.
Background technique
With the development of modern city, the public bus as public transport is rapidly developed, pneumatic door for coach
Also universal application has been obtained.Since pneumatic door switch is frequent, the requirement to pneumatic tube is very high, do not require nothing more than its impact resistance,
It is tear-resistant, creep resistant, wear-resisting, also require it with oil resistant, chemical-resistance.TPEE material is due to excellent counter-bending tired
Lao Xing, extremely strong resistance to tearing, creep resistance, while there is good wearability, resilience is good, also has outstanding impact resistance
Property, therefore fabulous oil resistant, chemical resistance is widely used as the pneumatic tube of door for coach.
TPEE(thermoplastic polyester elastomer) it is the block copolymer containing polyester hard section and polyester soft segment.Wherein polyethers is soft
Section and uncrystallized polyester form amorphous phase polyester hard section partially crystallizable and form crystalline domains, play physical crosslinking point.
TPEE has the elasticity of rubber and the intensity of engineering plastics；Soft segment assigns its elasticity, makes it as rubber；Hard section assigns its processability
Can, make it as plastics；With rubber phase ratio, it has better processing performance and longer service life；Compared with engineering plastics,
Equally have the characteristics that intensity is high, and flexibility and dynamic mechanical are more preferable.
But due to the water resistance of TPEE material, especially sea water resistance, salt fog resistance is poor that tracheae is caused to make in coastal cities
Used time is easy cracking by seawater, salt fog etch, the use of door for coach is made failure occur, and therefore, urgent need is developed a kind of compound
Pipe solves problem above.
Summary of the invention
The purpose of the present invention is in view of the above problems, the present invention provides a kind of complex pneumatic pipe and its manufacture craft, the spy
Determine compositing range can make the complex pneumatic pipe produced have sea water resistance, salt spray resistance etch, impact resistance, tear-resistant, creep resistant,
Wear-resisting, a series of excellent comprehensive performances such as oil resistant and chemical resistance are not only able to satisfy pneumatic door and switch frequent needs, but also
Simple process is easy to implement mechanization, automation, improves production efficiency.
In order to achieve the above object, the technical solution adopted by the present invention is that: a kind of complex pneumatic pipe, it includes the nylon of outer layer
The TPEE layer of layer, the hot melt adhesive layer in middle layer and inner layer, their composition by weight are as follows: nylon layer 18.4%-22.8%, hot melt adhesive layer
For 4.5%-7.1%, TPEE layers are 70.9%-76.3%；Its each thickness degree are as follows: nylon layer 0.2-0.25mm, hot melt adhesive layer are
0.05-0.08mm, TPEE layers are 0.9-0.97mm.
Further, their composition by weight are as follows: nylon layer 20.3%, hot melt adhesive layer 6.2%, TPEE layers are 73.5%；
Its each thickness degree are as follows: nylon layer 0.23mm, 0.07mm, TPEE layers of hot melt adhesive layer are 0.95mm.
Further, the hot melt adhesive layer is polyamide hot.
A kind of manufacture craft of complex pneumatic pipe, comprising the following steps:
Step 1: by TPEE raw material, drying for a period of time, removes the moisture content of adsorption at a certain temperature, is squeezed by 1# machine
Out, the TPEE melt of extrusion enters three-layer co-extruded compound die head innermost layer, and thickness accounts for the 72-78% of entire multiple tube overall thickness；
Step 2: hot melt adhesive raw material is dry at a certain temperature for a period of time, the moisture content of adsorption is removed, 2# machine is passed through
It squeezes out, the molten polyamide hot melt adhesive of extrusion enters three-layer co-extruded compound die head middle layer, as TPEE layers of inner layer and outer layer Buddhist nun
The adhesive layer of imperial layer, thickness account for the 4-6% of entire multiple tube overall thickness；
Step 3: by nylon raw material, drying for a period of time, removes the moisture content of adsorption at a certain temperature, is squeezed by 3# machine
Out, the nylon melt of extrusion enters the outermost layer of three-layer co-extruded compound die head, and thickness accounts for the 16- of entire multiple tube overall thickness
20%；
Step 4: the three-layer composite pipe shape melt come out from coextru-lamination die head enters vacuum sizing sleeve and carries out sizing, according to finished product
Caliber size is adjusted, the three-layer composite pipe after sizing enter cooling bath carry out cooling shaping, measuring outside diameter, by traction,
Winding examines qualification to be finished product.
Further, described Step 1: drying temperature in step 2 and step 3 is 95-105 DEG C.
Further, described Step 1: drying time in step 2 and step 3 is 1.5-2 hours.
Further, vacuum sizing sleeve carries out sizing in the step 4, and wherein vacuum degree is 0.02-0.04Mpa.
Further, the extrusion process temperature in the step 1 is 210-230 DEG C.
Further, the extrusion process temperature in the step 2 and step 3 is 200-210 DEG C.
Beneficial effects of the present invention:
1, the present invention provides a kind of complex pneumatic pipe, which can make the complex pneumatic pipe produced have resistance to sea
Water, salt spray resistance etch, impact resistance, tear-resistant, creep resistant, a series of wear-resisting, excellent comprehensive performances such as oil resistant and chemical resistance,
It is not only able to satisfy pneumatic door and switchs frequent needs, but also simple process, be easy to implement mechanization, automation, improve production
Efficiency.
2, the present invention is dry by a certain percentage by hot melt adhesive, nylon and TPEE three, removes water and squeezes out, using extrusion process
Product comprehensive performance can be improved with refiner material tissue, meet the high-quality of car components, high performance requirement；Through squeezing
Latter three respectively enters coextru-lamination die head out, carries out sizing into vacuum sizing sleeve, complex pneumatic pipe is then made；According to work
Skill requires and technical characterstic using high temperature drying and extrusion is able to satisfy pneumatic tube sea water resistance, the salt spray resistance etch, resistance to punching of acquisition
It hits, is tear-resistant, creep resistant, wear-resisting, oil resistant, chemical resistance, and long service life.
3, the manufacture craft of a kind of complex pneumatic pipe provided by the invention, this method is simple to operation, and substep squeezes again multiple
It closes and squeezes out, play the characteristic synergistic effect between each composition more significant, to significantly improve the use value of pneumatic tube.
Detailed description of the invention
Fig. 1 is a kind of complex pneumatic pipe manufacture craft schematic diagram.
Specific embodiment
In order to make those skilled in the art more fully understand technical solution of the present invention, below with reference to embodiment to the present invention
Be described in detail, the description of this part be only it is exemplary and explanatory, should not have any limit to protection scope of the present invention
Production is used.
Embodiment 1:
A kind of complex pneumatic pipe, it includes the TPEE layer of the nylon layer of outer layer, the hot melt adhesive layer in middle layer and inner layer, their weight
Component are as follows: nylon layer 18.4%, hot melt adhesive layer 5.3%, TPEE layers are 76.3%；Its each thickness degree are as follows: nylon layer is
0.2mm, 0.08mm, TPEE layers of hot melt adhesive layer are 0.97mm.
Further, the hot melt adhesive layer is polyamide hot.
A kind of manufacture craft of complex pneumatic pipe, comprising the following steps:
Step 1: by TPEE raw material, drying for a period of time, removes the moisture content of adsorption at a certain temperature, is squeezed by 1# machine
Out, the TPEE melt of extrusion enters three-layer co-extruded compound die head innermost layer, and thickness accounts for the 72-78% of entire multiple tube overall thickness；
Step 2: hot melt adhesive raw material is dry at a certain temperature for a period of time, the moisture content of adsorption is removed, 2# machine is passed through
It squeezes out, the molten polyamide hot melt adhesive of extrusion enters three-layer co-extruded compound die head middle layer, as TPEE layers of inner layer and outer layer Buddhist nun
The adhesive layer of imperial layer, thickness account for the 4-6% of entire multiple tube overall thickness；
Step 3: by nylon raw material, drying for a period of time, removes the moisture content of adsorption at a certain temperature, is squeezed by 3# machine
Out, the nylon melt of extrusion enters the outermost layer of three-layer co-extruded compound die head, and thickness accounts for the 16- of entire multiple tube overall thickness
20%；
Step 4: the three-layer composite pipe shape melt come out from coextru-lamination die head enters vacuum sizing sleeve and carries out sizing, according to finished product
Caliber size is adjusted, the three-layer composite pipe after sizing enter cooling bath carry out cooling shaping, measuring outside diameter, by traction,
Winding examines qualification to be finished product.
Further, described Step 1: drying temperature in step 2 and step 3 is 95 DEG C.
Further, described Step 1: drying time in step 2 and step 3 is 1.5 hours.
Further, vacuum sizing sleeve carries out sizing in the step 4, and wherein vacuum degree is 0.02Mpa.
Further, the extrusion process temperature in the step 1 is 210-220 DEG C.
Further, the extrusion process temperature in the step 2 and step 3 is 200-210 DEG C.
Embodiment 2:
A kind of complex pneumatic pipe, it includes the nylon layer of outer layer, the hot melt adhesive layer in middle layer and TPEE layers, nylon layer 20.3%, heat
It is 73.5% that melt layer, which is 6.2%, TPEE layers,；Its each thickness degree are as follows: nylon layer 0.23mm, hot melt adhesive layer 0.07mm,
TPEE layers are 0.95mm.
Further, the hot melt adhesive layer is polyamide hot.
A kind of manufacture craft of complex pneumatic pipe, comprising the following steps:
Step 1: by TPEE raw material, drying for a period of time, removes the moisture content of adsorption at a certain temperature, is squeezed by 1# machine
Out, the TPEE melt of extrusion enters three-layer co-extruded compound die head innermost layer, and thickness accounts for the 72-78% of entire multiple tube overall thickness；
Step 2: hot melt adhesive raw material is dry at a certain temperature for a period of time, the moisture content of adsorption is removed, 2# machine is passed through
It squeezes out, the molten polyamide hot melt adhesive of extrusion enters three-layer co-extruded compound die head middle layer, as TPEE layers of inner layer and outer layer Buddhist nun
The adhesive layer of imperial layer, thickness account for the 4-6% of entire multiple tube overall thickness；
Step 3: by nylon raw material, drying for a period of time, removes the moisture content of adsorption at a certain temperature, is squeezed by 3# machine
Out, the nylon melt of extrusion enters the outermost layer of three-layer co-extruded compound die head, and thickness accounts for the 16- of entire multiple tube overall thickness
20%；
Step 4: the three-layer composite pipe shape melt come out from coextru-lamination die head enters vacuum sizing sleeve and carries out sizing, according to finished product
Caliber size is adjusted, the three-layer composite pipe after sizing enter cooling bath carry out cooling shaping, measuring outside diameter, by traction,
Winding examines qualification to be finished product.
Further, described Step 1: drying temperature in step 2 and step 3 is 100 DEG C.
Further, described Step 1: drying time in step 2 and step 3 is 1.7 hours.
Further, vacuum sizing sleeve carries out sizing in the step 4, and wherein vacuum degree is 0.03Mpa.
Further, the extrusion process temperature in the step 1 is 220-225 DEG C.
Further, the extrusion process temperature in the step 2 and step 3 is 200-210 DEG C.
Embodiment 3:
A kind of complex pneumatic pipe, it includes the nylon layer of outer layer, the hot melt adhesive layer in middle layer and TPEE layers, their composition by weight
Are as follows: nylon layer 22.8%, hot melt adhesive layer 6.3%, TPEE layers are 70.9%；Its each thickness degree are as follows: nylon layer 0.25mm,
Hot melt adhesive layer is 0.08mm, and TPEE layers are 0.92mm.
Further, the hot melt adhesive layer is polyamide hot.
A kind of manufacture craft of complex pneumatic pipe, comprising the following steps:
Step 1: by TPEE raw material, drying for a period of time, removes the moisture content of adsorption at a certain temperature, is squeezed by 1# machine
Out, the TPEE melt of extrusion enters three-layer co-extruded compound die head innermost layer, and thickness accounts for the 72-78% of entire multiple tube overall thickness；
Step 2: hot melt adhesive raw material is dry at a certain temperature for a period of time, the moisture content of adsorption is removed, 2# machine is passed through
It squeezes out, the molten polyamide hot melt adhesive of extrusion enters three-layer co-extruded compound die head middle layer, as TPEE layers of inner layer and outer layer Buddhist nun
The adhesive layer of imperial layer, thickness account for the 4-6% of entire multiple tube overall thickness；
Step 3: by nylon raw material, drying for a period of time, removes the moisture content of adsorption at a certain temperature, is squeezed by 3# machine
Out, the nylon melt of extrusion enters the outermost layer of three-layer co-extruded compound die head, and thickness accounts for the 16- of entire multiple tube overall thickness
20%；
Step 4: the three-layer composite pipe shape melt come out from coextru-lamination die head enters vacuum sizing sleeve and carries out sizing, according to finished product
Caliber size is adjusted, the three-layer composite pipe after sizing enter cooling bath carry out cooling shaping, measuring outside diameter, by traction,
Winding examines qualification to be finished product.
Further, described Step 1: drying temperature in step 2 and step 3 is 105 DEG C.
Further, described Step 1: drying time in step 2 and step 3 is 2 hours.
Further, vacuum sizing sleeve carries out sizing in the step 4, and wherein vacuum degree is 0.04Mpa.
Further, the extrusion process temperature in the step 1 is 220-230 DEG C.
Further, the extrusion process temperature in the step 2 and step 3 is 200-210 DEG C.
Following table is the salt spray resistance experiment of the complex pneumatic pipe of various embodiments of the present invention preparation, this tests testing standard:
GB/T12000-2003 (plastics are exposed to the measurement of the influence in damp and hot, water spray and salt fog).The prior art is derived from commercially available common
Pneumatic tube.
It should be noted that, in this document, the terms "include", "comprise" or its any other variant are intended to nonexcludability
Include so that include a series of elements process, method, article or equipment not only include those elements, but also
Including other elements that are not explicitly listed, or further include for this process, method, article or equipment intrinsic want
Element.
Used herein a specific example illustrates the principle and implementation of the invention, the explanation of above example
It is merely used to help understand method and its core concept of the invention.The above is only a preferred embodiment of the present invention, it answers
When pointing out due to the finiteness of literal expression, and objectively there is unlimited specific structure, for the common skill of the art
For art personnel, without departing from the principle of the present invention, several improvement, retouching or variation can also be made, can also incited somebody to action
Above-mentioned technical characteristic is combined in the right way；These improve retouching, variation or combination, or the not improved structure by invention
Think and technical solution directly applies to other occasions, is regarded as protection scope of the present invention.
Claims (9)
1. a kind of complex pneumatic pipe, which is characterized in that it includes the TPEE of the nylon layer of outer layer, the hot melt adhesive layer in middle layer and inner layer
Layer, their composition by weight are as follows: nylon layer 18.4%-22.8%, 4.5%-7.1%, TPEE layers of hot melt adhesive layer are 70.9%-
76.3%；Its each thickness degree are as follows: nylon layer 0.2-0.25mm, 0.05-0.08mm, TPEE layers of hot melt adhesive layer are 0.9-
0.97mm。
2. a kind of complex pneumatic pipe according to claim 1, their composition by weight are as follows: nylon layer 20.3%, hot melt adhesive
It is 73.5% that layer, which is 6.2%, TPEE layers,；Its each thickness degree are as follows: nylon layer 0.23mm, hot melt adhesive layer 0.07mm, TPEE layer
For 0.95mm.
3. a kind of complex pneumatic pipe according to claim 1 or 2, the hot melt adhesive layer is polyamide hot.
4. a kind of manufacture craft of complex pneumatic pipe, which comprises the following steps:
Step 1: by TPEE raw material, drying for a period of time, removes the moisture content of adsorption at a certain temperature, is squeezed by 1# machine
Out, the TPEE melt of extrusion enters three-layer co-extruded compound die head innermost layer, and thickness accounts for the 72-78% of entire multiple tube overall thickness；
Step 2: hot melt adhesive raw material is dry at a certain temperature for a period of time, the moisture content of adsorption is removed, 2# machine is passed through
It squeezes out, the molten polyamide hot melt adhesive of extrusion enters three-layer co-extruded compound die head middle layer, as TPEE layers of inner layer and outer layer Buddhist nun
The adhesive layer of imperial layer, thickness account for the 4-6% of entire multiple tube overall thickness；
Step 3: by nylon raw material, drying for a period of time, removes the moisture content of adsorption at a certain temperature, is squeezed by 3# machine
Out, the nylon melt of extrusion enters the outermost layer of three-layer co-extruded compound die head, and thickness accounts for the 16- of entire multiple tube overall thickness
20%；
Step 4: the three-layer composite pipe shape melt come out from coextru-lamination die head enters vacuum sizing sleeve and carries out sizing, according to finished product
Caliber size is adjusted, the three-layer composite pipe after sizing enter cooling bath carry out cooling shaping, measuring outside diameter, by traction,
Winding examines qualification to be finished product.
5. a kind of manufacture craft of complex pneumatic pipe according to claim 4, described Step 1: in step 2 and step 3
Drying temperature be 95-105 DEG C.
6. a kind of manufacture craft of complex pneumatic pipe according to claim 4, described Step 1: in step 2 and step 3
Drying time be 1.5-2 hours.
7. a kind of manufacture craft of complex pneumatic pipe according to claim 4, vacuum sizing sleeve is carried out in the step 4
Sizing, wherein vacuum degree is 0.02-0.04Mpa.
Extrusion process temperature 8. a kind of manufacture craft of complex pneumatic pipe according to claim 4, in the step 1
It is 210-230 DEG C.
Extrusion 9. a kind of manufacture craft of complex pneumatic pipe according to claim 4, in the step 2 and step 3
Technological temperature is 200-210 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910640345.6A CN110228255A (en) | 2019-07-16 | 2019-07-16 | A kind of complex pneumatic pipe and its manufacture craft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910640345.6A CN110228255A (en) | 2019-07-16 | 2019-07-16 | A kind of complex pneumatic pipe and its manufacture craft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110228255A true CN110228255A (en) | 2019-09-13 |
Family
ID=67855070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910640345.6A Pending CN110228255A (en) | 2019-07-16 | 2019-07-16 | A kind of complex pneumatic pipe and its manufacture craft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110228255A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6576312B1 (en) * | 1998-11-18 | 2003-06-10 | Tokai Rubber Industries, Ltd. | Fuel transporting tube |
| CN103732397A (en) * | 2011-05-31 | 2014-04-16 | 株式会社普利司通 | Multi-layer structure, inner liner for pneumatic tire, and pneumatic tire |
| CN108488536A (en) * | 2018-04-20 | 2018-09-04 | 五行科技股份有限公司 | A kind of non-digging pipe repairing method |
-
2019
- 2019-07-16 CN CN201910640345.6A patent/CN110228255A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6576312B1 (en) * | 1998-11-18 | 2003-06-10 | Tokai Rubber Industries, Ltd. | Fuel transporting tube |
| CN103732397A (en) * | 2011-05-31 | 2014-04-16 | 株式会社普利司通 | Multi-layer structure, inner liner for pneumatic tire, and pneumatic tire |
| CN108488536A (en) * | 2018-04-20 | 2018-09-04 | 五行科技股份有限公司 | A kind of non-digging pipe repairing method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108515762B (en) | A kind of puncture-resistant BON biaxially oriented nylon film of three-decker and preparation method thereof | |
| JPS5628826A (en) | Thermoshrinking film and manufacturing thereof | |
| JP2014510800A5 (en) | ||
| CN103707603B (en) | Two-sided antifogging type BOPP film of two-sided heat-sealing and preparation method thereof | |
| JP2003025435A5 (en) | ||
| JPS5742726A (en) | Polyester film for shrink packaging | |
| CN110228255A (en) | A kind of complex pneumatic pipe and its manufacture craft | |
| AT76279B (en) | Clamping device consisting of sliding tendons for irregularly shaped objects. | |
| CN108666512A (en) | A kind of lithium ion battery composite separation membrane and preparation method thereof | |
| CN106158082A (en) | A kind of fan-shaped high flexibility robot cable | |
| KR101267895B1 (en) | 5 layer pvc pipe and manufacturing method of the smae | |
| CN106550800B (en) | Polyolefin greenhouse film and preparation method thereof | |
| ATA185882A (en) | METHOD FOR PRODUCING A STRING STRING FOR BALL RACKETS, ESPECIALLY FOR TENNIS RACKETS | |
| BR9901921A (en) | Extruded strip with a wire core with a variable neutral axis, and the respective manufacturing process | |
| JPS56112933A (en) | Thermoplastic polyamide-imide copolymer and production thereof | |
| CN207945358U (en) | A kind of novel carat pipe | |
| CN211106452U (en) | Silica gel mould inner color transfer printing film | |
| CN205489324U (en) | Car line protection sleeve pipe | |
| SU39280A1 (en) | Method of making material for magnetic cores | |
| AT51434B (en) | Method and device for the production of seamless rings with different cross-sectional thicknesses and external decoration pressed on at the strongest point. | |
| CN106764115B (en) | A kind of freeze proof double-layer composite pipe | |
| CN107236218A (en) | A kind of durable type PVC bionic fish baits | |
| CN114043795B (en) | Polylactic acid film with rainbow texture and preparation method and application thereof | |
| CN215283773U (en) | Waterproof roll containing amorphous alloy foil | |
| CN208873498U (en) | A kind of aerospace fluoroplastic insulation composite cable |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190913 |