CN109140098A - A kind of elbow and its preparation process for exhaust-gas treatment air-line system - Google Patents
A kind of elbow and its preparation process for exhaust-gas treatment air-line system Download PDFInfo
- Publication number
- CN109140098A CN109140098A CN201810858634.9A CN201810858634A CN109140098A CN 109140098 A CN109140098 A CN 109140098A CN 201810858634 A CN201810858634 A CN 201810858634A CN 109140098 A CN109140098 A CN 109140098A
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- Prior art keywords
- elbow
- resistant
- exhaust
- parts
- gas treatment
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- 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.)
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Classifications
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Abstract
The invention belongs to indusrial toxic harmful exhaust-gas efficient low consumption purification techniques fields, specifically, it is related to a kind of elbow and its preparation process for exhaust-gas treatment air-line system, the elbow for exhaust-gas treatment air-line system, its section is arc, it include elbow inlet and elbow outlet, the diameter that elbow inlet and elbow export is identical；The elbow is polypropylene modification plastic material, is suppressed by high density poly propylene, polyurethane, polyethylene, corrosion-resistant modifying agent, Environment-friendlywear-resistant wear-resistant agent, glass fibre, compatilizer, antioxidant, UV resistant agent and toner raw material mixed injection molding.Elbow structure for exhaust-gas treatment air-line system is simple, is suitable for batch production；And plastic material is used, formula rationally, has the characteristics that corrosion-resistant, antiacid alkali, wear-resistant and high mechanical strength, long service life.Using the forming method of injection compression, technical process is simple, is suitable for batch production.
Description
Technical field
The invention belongs to indusrial toxic harmful exhaust-gas efficient low consumption purification techniques fields, and in particular, to one kind is for giving up
The elbow and its preparation process of gas disposal air-line system.
Background technique
Exhaust-gas treatment is primarily referred to as the industrial waste gas injection dust particle generated for industrial site, flue gas flue dust, different
The work that taste gas, toxic and harmful gas are administered.Common exhaust-gas treatment has factory's fume and exhaust gas purifying, workshop dust useless
Gas purification, organic waste-gas purification, the purification of exhaust gas peculiar smell, acid-base waste gas purifying, purification of chemical waste gas etc..Pickling gas, degreasing alkali
If the soda acids exhaust gas such as gas washing body, antirust passivating solution gas cannot be handled correctly, it will lead to many serious consequences, causing can not
The loss retrieved, especially soda acid exhaust gas have very big corrosiveness；In addition soda acid exhaust gas also has the health of people very big
Harm.
Therefore, very high, exhaust-gas treatment air-line system is required for the acid-fast alkali-proof corrosive nature of soda acid waste gas treatment equipment
Each accessory require can have the characteristics that corrosion-resistant, antiacid alkali, wear-resistant and high mechanical strength.
Summary of the invention
Goal of the invention: the purpose of the present invention is to provide a kind of elbows for exhaust-gas treatment air-line system, main to apply
In plating, photovoltaic, solar energy and semiconductor industry exhaust-gas treatment air-line system, structure is simple, be suitable for batch production, have it is resistance to
The features such as antiacid alkali of burn into, wear-resistant and high mechanical strength, long service life.
The object of the invention is also to provide a kind of preparation processes of elbow for exhaust-gas treatment air-line system.
The technical solution adopted in the present invention: the present invention provides a kind of elbow for exhaust-gas treatment air-line system,
Be characterized in that: the section of the elbow (1) is arc, includes that elbow inlet (2) and elbow export (3), elbow inlet (2) and
The diameter that elbow exports (3) is identical；Elbow is polypropylene modification plastic material, by high density poly propylene, polyurethane, polyethylene,
Corrosion-resistant modifying agent, Environment-friendlywear-resistant wear-resistant agent, glass fibre, compatilizer, antioxidant, UV resistant agent and toner raw material mixed injection molding
It suppresses.
Further, a kind of elbow for exhaust-gas treatment air-line system of the present invention, is by following parts by weight
Raw material mixed injection molding is process: 60~100 parts of high density poly propylene, 15~22 parts of polyurethane, 8 ~ 18 parts of polyethylene, corrosion-resistant
20~30 parts of modifying agent, 5~12 parts of Environment-friendlywear-resistant wear-resistant agent, 8~22 parts of glass fibre, 2~6 parts of compatilizer, antioxidant 0.1~3
Part, 0.1~3 part of UV resistant agent and 0.2 ~ 2 part of toner.
Preferably, a kind of elbow for exhaust-gas treatment air-line system of the present invention, is by the original of following parts by weight
Material mixed injection molding is process: 70~80 parts of high density poly propylene, 10 ~ 15 parts of polyethylene, corrosion-resistant changes 16~20 parts of polyurethane
25~30 parts of agent of property, 6~8 parts of Environment-friendlywear-resistant wear-resistant agent, 15~18 parts of glass fibre, 3~5 parts of compatilizer, 0.5~1 part of antioxidant,
0.5~1 part and 0.4 ~ 1 part of toner of UV resistant agent.
Further, a kind of elbow for exhaust-gas treatment air-line system of the present invention, the corrosion-resistant modifying agent
For polytetrafluoroethylene (PTFE).
Further, a kind of elbow for exhaust-gas treatment air-line system of the present invention, the Environment-friendlywear-resistant wear-resistant agent packet
Include nanometer grade silica and polysiloxanes.
Further, a kind of elbow for exhaust-gas treatment air-line system of the present invention, the antioxidant be by
The mixture that resistance phenolic antioxidant is compounded with phosphite ester antioxidant in mass ratio 1: 1.
Further, a kind of elbow for exhaust-gas treatment air-line system of the present invention, the compatilizer are Malaysia
Anhydride-grafted polypropylene.
Further, a kind of elbow for exhaust-gas treatment air-line system of the present invention, the UV resistant agent are
Benzophenone BP-12.
Further, the preparation process of a kind of elbow for exhaust-gas treatment air-line system of the present invention, including such as
Lower step: a, weighing each raw material according to parts by weight respectively, spare；B, by high density poly propylene, polyurethane, polyethylene, corrosion-resistant
Modifying agent, which is added in high speed mixer, mixes 15 ~ 20min；100 ~ 120 DEG C of whipping temp, stirring rate 4000r/min；And gradually
Environment-friendlywear-resistant wear-resistant agent, compatilizer, antioxidant, UV resistant agent and toner is added, persistently stirs 15 ~ 20min；C, the mixing obtained
Object is added twin-screw extrude through main spout, and double screw extruder is added from side spout in glass fibre by weight, control
For temperature processed at 230 ~ 250 DEG C, screw rod revolution extruding pelletization after 350 ~ 500r/min, melting obtains pellet；D, the pellet obtained
Compression moulding in injection molding machine is thrown into, the temperature setting of injection molding machine is at 230 ~ 250 DEG C, and injection molding machine is using the mold of elbow pellet pressure
Type is made；E, it is finally cooled and shaped, demoulds to get the elbow for exhaust-gas treatment air-line system.
Further, a kind of elbow for exhaust-gas treatment air-line system of the present invention, be applied to plating, photovoltaic,
The exhaust-gas treatment air-line system of solar energy and semiconductor industry.
Beneficial effects of the present invention: provided by the present invention for the elbow of exhaust-gas treatment air-line system, structure is simple, is suitable for
Batch production；And plastic material is used, formula rationally, is basic material with high density poly propylene, is added and matches reasonable poly- ammonia
Ester, polyethylene, corrosion-resistant modifying agent, Environment-friendlywear-resistant wear-resistant agent, glass fibre make elbow have corrosion-resistant, antiacid alkali, wear-resistant and machine
The features such as tool intensity height, long service life.In addition, the preparation of the elbow provided by the present invention for exhaust-gas treatment air-line system
Technique, using the forming method of injection compression, technical process is simple, is suitable for batch production.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of preferred elbow of the present invention；Fig. 2 is a kind of bottom view of preferred elbow；Fig. 3
For a kind of right view of preferred elbow.
In figure: 1 is elbow；2 be elbow inlet；3 export for elbow.
Specific embodiment
Below will be by several specific embodiments, the present invention is furture elucidated, these embodiments simply to illustrate that problem,
It is not a kind of limitation.
Embodiment 1: the section of a kind of elbow for exhaust-gas treatment air-line system, the elbow (1) is arc, includes
The diameter of elbow inlet (2) and elbow outlet (3), elbow inlet (2) and elbow outlet (3) is identical；The elbow is polypropylene
Modified plastics material is to be process by the raw material mixed injection molding of following parts by weight: 70 parts of high density poly propylene, polyurethane 16
Part, 10 parts of polyethylene, 25 parts of corrosion-resistant modifying agent, 6 parts of Environment-friendlywear-resistant wear-resistant agent, 15 parts of glass fibre, 3 parts of compatilizer, antioxidant
0.5 part, 0.5 part of UV resistant agent and 0.4 part of toner.
The corrosion-resistant modifying agent is polytetrafluoroethylene (PTFE).
The Environment-friendlywear-resistant wear-resistant agent includes nanometer grade silica and polysiloxanes.
The antioxidant is the mixing that Hinered phenols antioxidant is compounded with phosphite ester antioxidant in mass ratio 1: 1
Object.
The compatilizer is maleic anhydride inoculated polypropylene.
The UV resistant agent is benzophenone BP-12.
A kind of preparation process of the elbow for exhaust-gas treatment air-line system includes the following steps: a, according to parts by weight point
Each raw material also known as is taken, it is spare；B, high density poly propylene, polyurethane, polyethylene, corrosion-resistant modifying agent are added in high speed mixer
Mix 15 ~ 20min；100 ~ 120 DEG C of whipping temp, stirring rate 4000r/min；And be gradually added Environment-friendlywear-resistant wear-resistant agent, compatilizer,
Antioxidant, UV resistant agent and toner persistently stir 15 ~ 20min；C, twin-screw is added through main spout in the mixture obtained
In extruder, double screw extruder is added from side spout in glass fibre by weight, and control temperature is at 230 ~ 250 DEG C, screw rod
Revolution extruding pelletization after 350 ~ 500r/min, melting, obtains pellet；D, the pellet obtained throws into compression moulding in injection molding machine,
The temperature setting of injection molding machine is at 230 ~ 250 DEG C, and injection molding machine is using the mold of elbow pellet compression moulding；E, it is finally cooled to
Type, demoulding are to get the elbow for exhaust-gas treatment air-line system.
Embodiment 2:
The section of a kind of elbow for exhaust-gas treatment air-line system, the elbow (1) is arc, includes elbow inlet (2)
(3) are exported with elbow, the diameter of elbow inlet (2) and elbow outlet (3) is identical；The elbow is polypropylene modification plastics material
Matter is process by the raw material mixed injection molding of following parts by weight: 75 parts of high density poly propylene, 18 parts of polyurethane, polyethylene 13
Part, 28 parts of corrosion-resistant modifying agent, 7 parts of Environment-friendlywear-resistant wear-resistant agent, 16 parts of glass fibre, 4 parts of compatilizer, 0.8 part of antioxidant, uvioresistant
0.8 part and 0.5 part of toner of line agent
The corrosion-resistant modifying agent is polytetrafluoroethylene (PTFE).
The Environment-friendlywear-resistant wear-resistant agent includes nanometer grade silica and polysiloxanes.
The antioxidant is the mixing that Hinered phenols antioxidant is compounded with phosphite ester antioxidant in mass ratio 1: 1
Object.
The compatilizer is maleic anhydride inoculated polypropylene.
The UV resistant agent is benzophenone BP-12.
A kind of preparation process of the elbow for exhaust-gas treatment air-line system includes the following steps: a, according to parts by weight point
Each raw material also known as is taken, it is spare；B, high density poly propylene, polyurethane, polyethylene, corrosion-resistant modifying agent are added in high speed mixer
Mix 15 ~ 20min；100 ~ 120 DEG C of whipping temp, stirring rate 4000r/min；And be gradually added Environment-friendlywear-resistant wear-resistant agent, compatilizer,
Antioxidant, UV resistant agent and toner persistently stir 15 ~ 20min；C, twin-screw is added through main spout in the mixture obtained
In extruder, double screw extruder is added from side spout in glass fibre by weight, and control temperature is at 230 ~ 250 DEG C, screw rod
Revolution extruding pelletization after 350 ~ 500r/min, melting, obtains pellet；D, the pellet obtained throws into compression moulding in injection molding machine,
The temperature setting of injection molding machine is at 230 ~ 250 DEG C, and injection molding machine is using the mold of elbow pellet compression moulding；E, it is finally cooled to
Type, demoulding are to get the elbow for exhaust-gas treatment air-line system.
Embodiment 3:
The section of a kind of elbow for exhaust-gas treatment air-line system, the elbow (1) is arc, includes elbow inlet (2)
(3) are exported with elbow, the diameter of elbow inlet (2) and elbow outlet (3) is identical；The elbow is polypropylene modification plastics material
Matter is process by the raw material mixed injection molding of following parts by weight: 80 parts of high density poly propylene, 20 parts of polyurethane, polyethylene 15
Part, 30 parts of corrosion-resistant modifying agent, 8 parts of Environment-friendlywear-resistant wear-resistant agent, 18 parts of glass fibre, 5 parts of compatilizer, 1 part of antioxidant, uvioresistant
1 part and 1 part of toner of agent
The corrosion-resistant modifying agent is polytetrafluoroethylene (PTFE).
The Environment-friendlywear-resistant wear-resistant agent includes nanometer grade silica and polysiloxanes.
The antioxidant is the mixing that Hinered phenols antioxidant is compounded with phosphite ester antioxidant in mass ratio 1: 1
Object.
The compatilizer is maleic anhydride inoculated polypropylene.
The UV resistant agent is benzophenone BP-12.
A kind of preparation process of the elbow for exhaust-gas treatment air-line system includes the following steps: a, according to parts by weight point
Each raw material also known as is taken, it is spare；B, high density poly propylene, polyurethane, polyethylene, corrosion-resistant modifying agent are added in high speed mixer
Mix 15 ~ 20min；100 ~ 120 DEG C of whipping temp, stirring rate 4000r/min；And be gradually added Environment-friendlywear-resistant wear-resistant agent, compatilizer,
Antioxidant, UV resistant agent and toner persistently stir 15 ~ 20min；C, twin-screw is added through main spout in the mixture obtained
In extruder, double screw extruder is added from side spout in glass fibre by weight, and control temperature is at 230 ~ 250 DEG C, screw rod
Revolution extruding pelletization after 350 ~ 500r/min, melting, obtains pellet；D, the pellet obtained throws into compression moulding in injection molding machine,
The temperature setting of injection molding machine is at 230 ~ 250 DEG C, and injection molding machine is using the mold of elbow pellet compression moulding；E, it is finally cooled to
Type, demoulding are to get the elbow for exhaust-gas treatment air-line system.
The above is only embodiments of the present invention, it is noted that those skilled in the art are come
It says, without departing from the principle of the present invention, several improvement can also be made, these improvement also should be regarded as protection of the invention
Range.
Claims (10)
1. a kind of elbow for exhaust-gas treatment air-line system, it is characterised in that: the section of the elbow (1) is arc, including
There are elbow inlet (2) and elbow outlet (3), the diameter that elbow inlet (2) and elbow export (3) is identical；The elbow is poly- third
Alkene modified plastics material, by high density poly propylene, polyurethane, polyethylene, corrosion-resistant modifying agent, Environment-friendlywear-resistant wear-resistant agent, glass fibre,
Compatilizer, antioxidant, UV resistant agent and toner raw material mixed injection molding are suppressed.
2. a kind of elbow for exhaust-gas treatment air-line system according to claim 1, it is characterised in that: by following weight
Part raw material mixed injection molding be process: it is 60~100 parts of high density poly propylene, 15~22 parts of polyurethane, 8 ~ 18 parts of polyethylene, resistance to
Corrode 20~30 parts of modifying agent, 5~12 parts of Environment-friendlywear-resistant wear-resistant agent, 8~22 parts of glass fibre, 2~6 parts of compatilizer, antioxidant 0.1
~3 parts, 0.1~3 part of UV resistant agent and 0.2 ~ 2 part of toner.
3. a kind of elbow for exhaust-gas treatment air-line system according to claim 2, it is characterised in that: by following weight
Part raw material mixed injection molding be process: it is 70~80 parts of high density poly propylene, 16~20 parts of polyurethane, 10 ~ 15 parts of polyethylene, resistance to
Corrode 25~30 parts of modifying agent, 6~8 parts of Environment-friendlywear-resistant wear-resistant agent, 15~18 parts of glass fibre, 3~5 parts of compatilizer, antioxidant 0.5
~1 part, 0.5~1 part of UV resistant agent and 0.4 ~ 1 part of toner.
4. a kind of elbow for exhaust-gas treatment air-line system according to claim 3, it is characterised in that: described corrosion-resistant
Modifying agent is polytetrafluoroethylene (PTFE).
5. a kind of elbow for exhaust-gas treatment air-line system according to claim 3, it is characterised in that: the environmental protection is resistance to
Grinding agent includes nanometer grade silica and polysiloxanes.
6. a kind of elbow for exhaust-gas treatment air-line system according to claim 3, it is characterised in that: described anti-oxidant
Agent is the mixture that Hinered phenols antioxidant is compounded with phosphite ester antioxidant in mass ratio 1: 1.
7. a kind of elbow for exhaust-gas treatment air-line system according to claim 3, it is characterised in that: the compatilizer
For maleic anhydride inoculated polypropylene.
8. a kind of preparation process of elbow for exhaust-gas treatment air-line system according to claim 3, it is characterised in that:
The UV resistant agent is benzophenone BP-12.
9. a kind of preparation process of elbow for exhaust-gas treatment air-line system according to claim 1-8,
It is characterized in that: including the following steps: a, weighs each raw material respectively according to parts by weight, it is spare；B, by high density poly propylene, poly- ammonia
Ester, polyethylene, corrosion-resistant modifying agent, which are added in high speed mixer, mixes 15 ~ 20min；100 ~ 120 DEG C of whipping temp, stirring rate
4000r/min；And be gradually added Environment-friendlywear-resistant wear-resistant agent, compatilizer, antioxidant, UV resistant agent and toner, persistently stir 15 ~
20min；C, the mixture obtained is added twin-screw extrude through main spout, and glass fibre adds by weight from side spout
Enter double screw extruder, controls temperature at 230 ~ 250 DEG C, screw rod revolution extruding pelletization after 350 ~ 500r/min, melting obtains
Pellet；D, the pellet obtained throws into compression moulding in injection molding machine, and at 230 ~ 250 DEG C, injection molding machine utilizes the temperature setting of injection molding machine
The mold of elbow is pellet compression moulding；E, it is finally cooled and shaped, demoulds to get described for the curved of exhaust-gas treatment air-line system
Head.
10. a kind of elbow for exhaust-gas treatment air-line system according to claim 1, it is characterised in that: be applied to electricity
Plating, photovoltaic, solar energy and semiconductor industry exhaust-gas treatment air-line system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810858634.9A CN109140098A (en) | 2018-07-31 | 2018-07-31 | A kind of elbow and its preparation process for exhaust-gas treatment air-line system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810858634.9A CN109140098A (en) | 2018-07-31 | 2018-07-31 | A kind of elbow and its preparation process for exhaust-gas treatment air-line system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109140098A true CN109140098A (en) | 2019-01-04 |
Family
ID=64798345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810858634.9A Pending CN109140098A (en) | 2018-07-31 | 2018-07-31 | A kind of elbow and its preparation process for exhaust-gas treatment air-line system |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2169022Y (en) * | 1993-04-28 | 1994-06-15 | 鹤壁市山城区化工设备一厂 | Pipe against corrosion |
| JP2003035385A (en) * | 2001-07-24 | 2003-02-07 | Dainippon Ink & Chem Inc | Plastic composition for fiber-reinforced plastic tube and the fiber-reinforced plastic tube |
| CN1480676A (en) * | 2003-07-14 | 2004-03-10 | 夏祥东 | Flange installation for water drainage, air exhaust and sewage, and its mfg. method |
| CN102165239A (en) * | 2008-09-26 | 2011-08-24 | 旭有机材工业株式会社 | Process for joining piping members and piping members consisting of polyphenylene ether resin composition which are joined by the process |
| CN102660060A (en) * | 2012-04-11 | 2012-09-12 | 上海乔治费歇尔亚大塑料管件制品有限公司 | Age-resistant PE production technology, and application of age-resistant PE in 90DEG steel conversion parts |
| CN105829788A (en) * | 2013-11-06 | 2016-08-03 | 哈金森公司 | Connection device, pipes incorporating same for fluid transmission piping of an aircraft or a spacecraft, and method for manufacturing said device |
| EP3147549A1 (en) * | 2015-09-22 | 2017-03-29 | Airbus Defence and Space SA | Aircraft bleeding duct in composite material |
-
2018
- 2018-07-31 CN CN201810858634.9A patent/CN109140098A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2169022Y (en) * | 1993-04-28 | 1994-06-15 | 鹤壁市山城区化工设备一厂 | Pipe against corrosion |
| JP2003035385A (en) * | 2001-07-24 | 2003-02-07 | Dainippon Ink & Chem Inc | Plastic composition for fiber-reinforced plastic tube and the fiber-reinforced plastic tube |
| CN1480676A (en) * | 2003-07-14 | 2004-03-10 | 夏祥东 | Flange installation for water drainage, air exhaust and sewage, and its mfg. method |
| CN102165239A (en) * | 2008-09-26 | 2011-08-24 | 旭有机材工业株式会社 | Process for joining piping members and piping members consisting of polyphenylene ether resin composition which are joined by the process |
| CN102660060A (en) * | 2012-04-11 | 2012-09-12 | 上海乔治费歇尔亚大塑料管件制品有限公司 | Age-resistant PE production technology, and application of age-resistant PE in 90DEG steel conversion parts |
| CN105829788A (en) * | 2013-11-06 | 2016-08-03 | 哈金森公司 | Connection device, pipes incorporating same for fluid transmission piping of an aircraft or a spacecraft, and method for manufacturing said device |
| EP3147549A1 (en) * | 2015-09-22 | 2017-03-29 | Airbus Defence and Space SA | Aircraft bleeding duct in composite material |
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Application publication date: 20190104 |
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