CN113339600A - Extrusion type special-shaped silicone tube - Google Patents
Extrusion type special-shaped silicone tube Download PDFInfo
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- CN113339600A CN113339600A CN202110623331.0A CN202110623331A CN113339600A CN 113339600 A CN113339600 A CN 113339600A CN 202110623331 A CN202110623331 A CN 202110623331A CN 113339600 A CN113339600 A CN 113339600A
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- Prior art keywords
- layer
- silicone tube
- adhesive layer
- tubular fabric
- shaped silicone
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L11/00—Hoses, i.e. flexible pipes
- F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
- F16L11/10—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements not embedded in the wall
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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
- B29C48/03—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
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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
- B29C48/16—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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L11/00—Hoses, i.e. flexible pipes
- F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
- F16L11/045—Hoses, i.e. flexible pipes made of rubber or flexible plastics with four or more layers without reinforcement
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L43/00—Bends; Siphons
- F16L43/008—Bends; Siphons made from plastic material
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Laminated Bodies (AREA)
Abstract
The extrusion type special-shaped silicone tube comprises an inner adhesive layer, a reinforcing layer and an outer adhesive layer; the reinforcing layer is coated on the outer side of the inner rubber layer, the outer rubber layer is coated on the outer side of the reinforcing layer, and the inner rubber layer, the reinforcing layer and the outer rubber layer are compounded into a whole through vulcanization; the reinforcing layer is a single-layer tubular fabric or a composite structure containing multiple layers of tubular fabrics; the tubular fabric is woven by a knitting machine; the inner adhesive layer and the outer adhesive layer are made of silicon rubber; the tubular fabric is woven by aramid fiber yarns or polyester fiber yarns. The extrusion-type special-shaped silicone tube comprises an inner adhesive layer, a reinforcing layer and an outer adhesive layer, wherein the reinforcing layer is a tubular fabric or is formed by compounding multiple layers of tubular fabrics, so that the material consumption is low on the premise of meeting the strength requirement, the leftover materials generated in the production process are less, and the material cost is low; the specific enhancement layer structure is convenient to bend the pipe body into a curve shape required by design before vulcanization, and the strength of the bent part meets the requirement.
Description
Technical Field
The invention belongs to the technical field of pipe fittings, and particularly relates to a special-shaped silicone tube with a specific curve shape manufactured according to design requirements.
Background
The special-shaped silicone tube is a silicone tube with a specific curve shape in order to meet the specific installation space requirement, and is commonly used in automobiles. Silicone tubes used in automobiles are required to have excellent high and low temperature resistance, corrosion resistance, high pressure resistance, oil resistance and the like, and particularly, silicone tubes are required to have an air inlet system and an air outlet system of an automobile engine, an air inlet tube and an air outlet tube of a refrigerator and the like.
At present, a silicone tube used in the field of automobile refitting is formed by winding a rubber sheet and an enhancement layer adhered to the rubber sheet to form a tube body structure, and then is formed by vulcanization, so that the silicone tube has excellent high and low temperature resistance, high pressure resistance, corrosion resistance and other properties. The processing process comprises the following steps: rolling the silica gel into a film with a certain thickness, attaching a layer of reinforcing layer on one side or two sides of the film, cutting the film into a specified size, winding the film on a core mold to form a tube body structure, forming the rubber tube in a vulcanization mode, and finally performing water pressure depoling to obtain the finished product of the silica gel tube. However, in the above-mentioned processing, the film is usually wound around the core mold by manual means, which requires a long winding time and is complicated in operation, resulting in low production efficiency and high labor cost. In order to solve the problem, the applicant develops a rubber tube winding and processing device from the perspective of a production process and applies for a patent (CN 201820937782.5). when the device is used for producing a rubber tube, the long edge of the rubber sheet is placed on a rubber tube core mold, and a driving motor drives a rotating shaft to drive the rubber tube core mold to rotate through a three-jaw chuck, so that the automatic winding of the rubber sheet is realized, the production efficiency of the silicone tube can be effectively improved, and the labor cost is reduced. However, the whole winding process still needs manual operation to be completed, the requirement on the skill level of workers is high, and flaws can be generated by carelessness to influence the product quality. In addition, in order to meet the strength requirement of the silicone tube, the reinforcing layer in the prior art often needs to be wound for a large number of turns (see CN 201820949015.6), and the reinforcing layer has a large material consumption and a high cost.
Due to the problems, the special-shaped silicone tube product in the prior art has high cost, low capacity and high popularization difficulty, is still limited to be popular in the field of modified parts at present, and is difficult to enter the automobile matching market.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides an extrusion type special-shaped silicone tube. The extrusion-type special-shaped silicone tube comprises an inner adhesive layer, a reinforcing layer and an outer adhesive layer, wherein the reinforcing layer is a tubular fabric or is formed by compounding multiple layers of tubular fabrics, so that the material consumption is low on the premise of meeting the strength requirement, the leftover materials generated in the production process are less, and the material cost is low; in addition, the reinforcing layer is made of tubular fabric, and the pipe body is not required to be formed in a winding mode, so that the inner rubber layer and the outer rubber layer can be formed in an extrusion mode, the manufacturing is easier, and the cost control is facilitated; the specific reinforcing layer structure is convenient for bending the pipe body into a curve shape required by design before vulcanization, and the strength of the bent part meets the requirement; the product is prepared according to specific process steps, and has high production efficiency and low manufacturing cost.
In order to achieve the purpose, the invention provides the following technical scheme:
the extrusion type special-shaped silicone tube comprises an inner adhesive layer, a reinforcing layer and an outer adhesive layer; the reinforcing layer is coated on the outer side of the inner rubber layer, the outer rubber layer is coated on the outer side of the reinforcing layer, and the inner rubber layer, the reinforcing layer and the outer rubber layer are compounded into a whole through vulcanization; the reinforcing layer is a single-layer tubular fabric or a composite structure containing multiple layers of tubular fabrics; the tubular fabric is woven by a knitting machine; the inner adhesive layer and the outer adhesive layer are made of silicon rubber; the tubular fabric is woven by aramid fiber yarns or polyester fiber yarns;
the production process of the extrusion type special-shaped silicone tube on the production line is as follows:
firstly, forming an inner rubber layer (1);
manufacturing an enhancement layer (2) on the outer wall of the inner rubber layer (1), and coating the inner rubber layer (1);
extruding and molding an outer rubber layer (3) on the outer side of the enhancement layer (2) to coat the enhancement layer (2);
cutting according to the designed length of the product, bending the product into a curve shape required by the design by using a mould, and vulcanizing to obtain the product.
Compared with the prior art, the extrusion-type special-shaped silicone tube comprises an inner adhesive layer, a reinforcing layer and an outer adhesive layer, wherein the reinforcing layer is a single-layer tubular fabric or a composite structure containing multiple layers of tubular fabrics, and on the premise of meeting the strength requirement, compared with a winding structure in the prior art, the extrusion-type special-shaped silicone tube has the advantages of less material consumption, less leftover materials generated in the production process and low material cost (trial production shows that the material cost can be reduced by 30%); meanwhile, the reinforcing layer is made of tubular fabric or a composite structure of the tubular fabric, and the pipe body is not required to be wound and formed, so that the inner rubber layer and the outer rubber layer can be extruded and formed, the manufacturing is easier, and the cost control is facilitated; in addition, the tubular fabric in the reinforcing layer is of a knitted structure and is easy to bend, so that the unvulcanized silicone tube can be bent into a curve shape meeting the specific design requirement before the vulcanization process, and the strength of the bent part can meet the requirement; the production process comprises the specific process steps of extrusion molding of the inner rubber layer and the outer rubber layer, weaving of the tubular fabric of the reinforcing layer by a knitting machine, high production efficiency and low labor cost (trial production shows that the production efficiency can be improved by 5 times, and the labor cost is saved by 50%).
Preferably, in the extrusion-type special-shaped silicone tube, the reinforcing layer comprises a plurality of layers of tubular fabrics, and an extrusion-molded connecting adhesive layer is arranged between two adjacent layers of tubular fabrics. The enhancement layer contains the design of multilayer fabric, and body intensity is high, and the connection glue film between adjacent two-layer tubulose fabric can be fine connects into whole with it, long service life.
Preferably, in the extruded silicone tube, the reinforcing layer is a composite structure including two layers of tubular fabrics, the tubular fabric on the inner side is woven from aramid fiber yarns, and the tubular fabric on the outer side is woven from polyester fiber yarns. Aramid fiber intensity is higher, and polyester fiber elasticity is higher, and both make up the use, and the tubulose fabric in the outside is crooked easily, before getting into the vulcanization process, receives less resistance when bending into the curve shape that accords with specific design requirement with the silicone tube.
Preferably, in the extruded special-shaped silicone tube, the weave density of the tubular fabric positioned on the outer side in the reinforcing layer is smaller than that of the tubular fabric positioned on the inner side. The larger the weaving density of the tubular fabric is, the smaller the allowable bending range is, and the tubular fabric positioned on the outer side is less prone to bending, so that the allowable bending amplitude of the special-shaped silicone tube can be larger by arranging the weaving density of the tubular fabric positioned on the outer side to be smaller.
Preferably, in the extruded silicone tubing, the tubular fabric may be woven by a strand. Tubular fabrics are obtained by knitting with plied yarns, which can achieve higher strength than by knitting with single yarns.
Preferably, in the extruded special-shaped silicone tube, the thickness of the outer adhesive layer is smaller than that of the inner adhesive layer. The thickness of the inner rubber layer is larger than that of the outer rubber layer, before entering a vulcanization process, the resistance received when the silicone tube is bent into a curve shape meeting specific design requirements is smaller, the inner rubber layer is thicker, and the reinforcing layer can be better protected, so that the rubber tube is not easy to damage.
As an optimization, in the extrusion type special-shaped silicone tube, the inner adhesive layer is composed of a first inner adhesive layer and a second inner adhesive layer which are formed by extrusion, and the second inner adhesive layer is coated on the outer side of the first inner adhesive layer. The inner rubber layer is designed into a composite structure consisting of the first inner rubber layer and the second inner rubber layer, and compared with a single-layer structure, the rubber tube before vulcanization is easier to bend, so that the curve shape meeting the specific design requirement is easier to bend the silicone tube before entering the vulcanization process.
Preferably, in the extruded special-shaped silicone tube, the thickness of the first inner adhesive layer is greater than that of the second inner adhesive layer. The thickness of the first inner rubber layer is larger than that of the second inner rubber layer, so that the rubber pipe before vulcanization can be further bent easily.
Preferably, in the extrusion-type special-shaped silicone tube, the outer adhesive layer is composed of a first outer adhesive layer and a second outer adhesive layer, which are formed by extrusion, and the second outer adhesive layer is coated on the outer side of the first outer adhesive layer. Design into the composite construction who comprises first outer glue film and the outer glue film of second with outer glue film, compare single-layer structure, the rubber tube is crooked more easily before the vulcanization for before getting into the vulcanization process, bend into the curve shape that accords with specific design requirement with the silicone tube more easily.
Preferably, in the extruded special-shaped silicone tube, the thickness of the first outer adhesive layer is greater than that of the second outer adhesive layer. The thickness of the first outer rubber layer is larger than that of the second outer rubber layer, so that the rubber tube before vulcanization can be further bent easily.
Drawings
FIG. 1 is a schematic view of the external structure of an extruded silicone profiled tubing in example 1 of the present invention;
fig. 2 is a schematic cross-sectional structure of the extruded silicone tubing of fig. 1.
The labels in the figures are: 1-inner glue layer, 101-first inner glue layer, 102-second inner glue layer; 2-reinforcing layer, 201-connecting glue layer; 3-outer glue layer, 301-first outer glue layer, 302-second outer glue layer.
Detailed Description
The invention is further illustrated by the following figures and examples, which are not to be construed as limiting the invention. In the following examples, the details which are not described in detail are all common knowledge in the art.
Example (see fig. 1 and 2):
the extrusion type special-shaped silicone tube comprises an inner adhesive layer 1, a reinforcing layer 2 and an outer adhesive layer 3; the reinforcing layer 2 is coated on the outer side of the inner rubber layer 1, the outer rubber layer 3 is coated on the outer side of the reinforcing layer 2, and the inner rubber layer 1, the reinforcing layer 2 and the outer rubber layer 3 are compounded into a whole through vulcanization; the reinforcing layer 2 is a single-layer tubular fabric or a composite structure containing multiple layers of tubular fabrics; the tubular fabric is woven by a knitting machine; the inner adhesive layer 1 and the outer adhesive layer 3 are made of silicon rubber; the tubular fabric is woven by aramid fiber yarns or polyester fiber yarns;
in this embodiment, the reinforcing layer 2 includes a plurality of layers of tubular fabrics, and an extrusion-molded connecting adhesive layer 201 is disposed between two adjacent layers of tubular fabrics. Specifically, in this embodiment, the reinforcement layer 2 is a composite structure including two layers of tubular fabrics, the tubular fabric located on the inner side is woven from aramid fiber yarn, and the tubular fabric located on the outer side is woven from polyester fiber yarn.
In this embodiment, the outer tubular fabric of the reinforcement layer 2 has a smaller weave density than the inner tubular fabric.
In this embodiment, the tubular fabric is woven from strands. The strands in this embodiment are SZ-type twin strands.
In this embodiment, the thickness of the outer adhesive layer 3 is smaller than that of the inner adhesive layer 1. Specifically, the thickness of the inner glue layer 1 is 2.5mm, and the thickness of the outer glue layer 3 is 1.5 mm.
In this embodiment, the inner adhesive layer 1 is composed of a first inner adhesive layer 101 and a second inner adhesive layer 102 formed by extrusion molding, and the second inner adhesive layer 102 is wrapped outside the first inner adhesive layer 101.
In this embodiment, the thickness of the first inner glue layer 101 is greater than that of the second inner glue layer 102. Specifically, the thickness of the first inner glue layer 101 is 1.5mm, and the thickness of the second inner glue layer is 1 mm.
In this embodiment, the outer adhesive layer 3 is composed of a first outer adhesive layer 301 and a second outer adhesive layer 302 formed by extrusion molding, and the second outer adhesive layer 302 is wrapped outside the first outer adhesive layer 301.
In this embodiment, the thickness of the first outer adhesive layer 301 is greater than the thickness of the second outer adhesive layer 302. Specifically, the thickness of the first outer adhesive layer 301 is 0.8, and the thickness of the second outer adhesive layer is 0.7 mm.
The production process of the extruded special-shaped silicone tube on the production line of the embodiment is as follows:
firstly, extruding and molding a first inner glue layer 101; extruding and forming a second inner glue layer 102 to coat the first inner glue layer 101 to obtain an inner glue layer 1; thirdly, weaving the tubular fabric positioned on the inner side by using a knitting machine to coat the inner rubber layer 1; fourthly, the connecting glue layer 201 is formed in an extrusion molding mode, and the tubular fabric positioned on the inner side is coated; utilizing a knitting machine to weave the tubular fabric positioned at the outer side to coat the connecting glue layer 201 to obtain an additional layer 2; sixthly, a first outer glue layer 301 is extruded and molded on the outer side of the enhancement layer 2 to coat the enhancement layer 2; seventhly, extruding and forming a second outer rubber layer 302 to coat the first outer rubber layer 301 to obtain an outer rubber layer 3; cutting according to the designed length of the product, bending the product into a curve shape required by the design by using a mould, and vulcanizing to obtain the product.
It should be noted that the extruded silicone tubing is not limited to the shape of the above embodiments, and may be made in other curved shapes. Of course, the extruded silicone tubing is not limited to the parameter settings in the above embodiments.
The above general description of the invention and the description of the specific embodiments thereof, as referred to in this application, should not be construed as limiting the technical solutions of the invention. Those skilled in the art can add, reduce or combine the technical features disclosed in the general description and/or the specific embodiments (including the examples) to form other technical solutions within the protection scope of the present application according to the disclosure of the present application without departing from the structural elements of the present invention.
Claims (10)
1. Extrude type dysmorphism silicone tube, its characterized in that: comprises an inner glue layer (1), a reinforcing layer (2) and an outer glue layer (3); the reinforcing layer (2) is coated on the outer side of the inner rubber layer (1), the outer rubber layer (3) is coated on the outer side of the reinforcing layer (2), and the inner rubber layer (1), the reinforcing layer (2) and the outer rubber layer (3) are compounded into a whole through vulcanization; the reinforcement layer (2) is a single-layer tubular fabric or a composite structure comprising a plurality of layers of tubular fabrics; the tubular fabric is woven by a knitting machine; the inner adhesive layer (1) and the outer adhesive layer (3) are made of silicon rubber; the tubular fabric is woven by aramid fiber yarns or polyester fiber yarns;
the production process of the extrusion type special-shaped silicone tube on the production line is as follows:
firstly, extruding and molding an inner rubber layer (1);
manufacturing an enhancement layer (2) on the outer wall of the inner rubber layer (1) to coat the inner rubber layer (1);
extruding and molding an outer rubber layer (3) on the outer side of the enhancement layer (2) to coat the enhancement layer (2);
cutting according to the design length of the product, bending the product into a curve shape required by the design by using a mould, and vulcanizing to obtain the product.
2. The extruded shaped silicone tube of claim 1, wherein: the reinforcing layer (2) comprises a plurality of layers of tubular fabrics, and an extrusion-molded connecting glue layer (201) is arranged between every two adjacent layers of tubular fabrics.
3. The extruded shaped silicone tube of claim 2, wherein: the reinforcement layer (2) is a composite structure comprising two layers of tubular fabrics, the tubular fabric positioned on the inner side is woven by aramid fiber yarns, and the tubular fabric positioned on the outer side is woven by polyester fiber yarns.
4. The extruded shaped silicone tube of claim 2, wherein: in the reinforcing layer (2), the weaving density of the tubular fabric positioned at the outer side is smaller than that of the tubular fabric positioned at the inner side.
5. The extruded shaped silicone tube of claim 1, wherein: the tubular fabric is woven from strands.
6. The extruded silicone tubing of any one of claims 1 to 5, wherein: the thickness of the outer glue layer (3) is smaller than that of the inner glue layer (1).
7. The extruded shaped silicone tube of claim 6, wherein: the inner rubber layer (1) is composed of a first inner rubber layer (101) and a second inner rubber layer (102) which are formed in an extrusion mode, and the second inner rubber layer (102) is wrapped on the outer side of the first inner rubber layer (101).
8. The extruded shaped silicone tube of claim 7, wherein: the thickness of the first inner glue layer (101) is larger than that of the second inner glue layer (102).
9. The extruded shaped silicone tube of claim 6, wherein: the outer adhesive layer (3) is composed of a first outer adhesive layer (301) and a second outer adhesive layer (302) which are formed in an extrusion mode, and the second outer adhesive layer (302) is wrapped on the outer side of the first outer adhesive layer (301).
10. The extruded shaped silicone tube of claim 9, wherein: the thickness of the first outer glue layer (301) is larger than that of the second outer glue layer (302).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110623331.0A CN113339600A (en) | 2021-06-04 | 2021-06-04 | Extrusion type special-shaped silicone tube |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110623331.0A CN113339600A (en) | 2021-06-04 | 2021-06-04 | Extrusion type special-shaped silicone tube |
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| CN113339600A true CN113339600A (en) | 2021-09-03 |
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| CN202110623331.0A Pending CN113339600A (en) | 2021-06-04 | 2021-06-04 | Extrusion type special-shaped silicone tube |
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Citations (7)
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| CN101706023A (en) * | 2009-12-09 | 2010-05-12 | 河北东劲液压橡塑制品有限公司 | Over-pressure over-temperature environment-friendly silica gel composite pipe and preparation method thereof |
| CN102305319A (en) * | 2011-09-01 | 2012-01-04 | 宁波丰茂汽车零部件有限公司 | Automotive rubber tube applied to silicon controlled rectifier (SCR) and production process for automotive rubber tube |
| CN102734570A (en) * | 2012-06-20 | 2012-10-17 | 浙江吉利汽车研究院有限公司杭州分公司 | Cooling hose for turbocharger of engine |
| WO2014156666A1 (en) * | 2013-03-25 | 2014-10-02 | 東海ゴム工業株式会社 | High-pressure hydraulic hose |
| US20160047498A1 (en) * | 2014-08-13 | 2016-02-18 | GM Global Technology Operations LLC | Platy-filler nitrile liner low permeation fuel filler hoses |
| CN106287022A (en) * | 2016-08-25 | 2017-01-04 | 焦作恒荣科技有限公司 | A kind of rubber tube for turbo charged air pump and manufacture method thereof |
| CN106870836A (en) * | 2017-01-13 | 2017-06-20 | 浙江峻和橡胶科技有限公司 | Epichlorohydrin rubber turbine pressurized hose and its manufacture method |
-
2021
- 2021-06-04 CN CN202110623331.0A patent/CN113339600A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101706023A (en) * | 2009-12-09 | 2010-05-12 | 河北东劲液压橡塑制品有限公司 | Over-pressure over-temperature environment-friendly silica gel composite pipe and preparation method thereof |
| CN102305319A (en) * | 2011-09-01 | 2012-01-04 | 宁波丰茂汽车零部件有限公司 | Automotive rubber tube applied to silicon controlled rectifier (SCR) and production process for automotive rubber tube |
| CN102734570A (en) * | 2012-06-20 | 2012-10-17 | 浙江吉利汽车研究院有限公司杭州分公司 | Cooling hose for turbocharger of engine |
| WO2014156666A1 (en) * | 2013-03-25 | 2014-10-02 | 東海ゴム工業株式会社 | High-pressure hydraulic hose |
| US20160047498A1 (en) * | 2014-08-13 | 2016-02-18 | GM Global Technology Operations LLC | Platy-filler nitrile liner low permeation fuel filler hoses |
| CN106287022A (en) * | 2016-08-25 | 2017-01-04 | 焦作恒荣科技有限公司 | A kind of rubber tube for turbo charged air pump and manufacture method thereof |
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Application publication date: 20210903 |