CN105315551A - Automobile air conditioner fan blade and preparing method thereof - Google Patents
Automobile air conditioner fan blade and preparing method thereof Download PDFInfo
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- CN105315551A CN105315551A CN201510692947.8A CN201510692947A CN105315551A CN 105315551 A CN105315551 A CN 105315551A CN 201510692947 A CN201510692947 A CN 201510692947A CN 105315551 A CN105315551 A CN 105315551A
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- 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
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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
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/918—Thermal treatment of the stream of extruded material, e.g. cooling characterized by differential heating or cooling
- B29C48/9185—Thermal treatment of the stream of extruded material, e.g. cooling characterized by differential heating or cooling in the direction of the stream of the material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B13/00—Conditioning or physical treatment of the material to be shaped
- B29B13/08—Conditioning or physical treatment of the material to be shaped by using wave energy or particle radiation
-
- 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
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/911—Cooling
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
-
- 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
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92904—Die; Nozzle zone
-
- 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
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/918—Thermal treatment of the stream of extruded material, e.g. cooling characterized by differential heating or cooling
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Toxicology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
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Abstract
The invention discloses an automobile air conditioner fan blade and a preparing method thereof. The preparing method comprises the steps that firstly, montmorillonite and bamboo charcoal ash are steeped into a hydrochloric acid solution, subjected to ultrasonic oscillation and then filtered, and filter residues are taken; secondly, PP (polypropylene), an AES (acrylonitrile-ethylene-styrol copolymer), an ETFE (ethylene-tetrafluoroethylene copolymer), PEO (polyethylene oxide), melamine cyanurate, diisodecyl ortho-phthalate, barium oxide, rare earth oxide, sodium vanadate, rosin, starch and the filter residues are fused and then solidified for formation, and the automobile air conditioner fan blade is obtained. The automobile air conditioner fan blade has excellent weather fastness and mechanical properties; meanwhile, the preparing method is simple in step, and raw materials are easy to obtain.
Description
Technical field
The present invention relates to automative air conditioning component, particularly, relate to a kind of automative air conditioning flabellum and preparation method thereof.
Background technology
Automative air conditioning flabellum is the important component part of automative air conditioning, and its principle of work drives the rotation of flabellum by motor and then produces distinguished and admirable, and general flabellum is centrosymmetric, and is so just conducive to improving distinguished and admirable speed and stability.
At present, automative air conditioning flabellum is generally made by macromolecular material.Due to automative air conditioning flabellum temperature in the course of the work with quit work after temperature there is the larger temperature difference, under the condition of so large temperature difference, often there is the situation of being out of shape and then the serviceability that have impact on flabellum in automative air conditioning flabellum, its mechanical property also can significantly reduce thereupon simultaneously.
Summary of the invention
The object of this invention is to provide a kind of automative air conditioning flabellum and preparation method thereof, this automative air conditioning flabellum has excellent weathering resistance and mechanical property, and this preparation method's step is simple simultaneously, and raw material is easy to get.
To achieve these goals, the invention provides a kind of preparation method of automative air conditioning flabellum, this preparation method comprises:
1) polynite and bamboo charcoal ash be soaked in hydrochloric acid soln and carry out sonic oscillation, then crossing leaching filter residue;
2) PP (polypropylene), AES (acrylonitrile ethylene styrene copolymer), ETFE (ethylene-tetrafluoroethylene copolymer), PEO (polyethylene oxide), melamine cyanurate, the different certain herbaceous plants with big flowers ester of phthalic acid two, barium oxide, rare earth oxide, sodium vanadate, rosin, starch and filter residue are carried out melting, then curing molding obtains automative air conditioning flabellum.
Present invention also offers a kind of automative air conditioning flabellum, this automative air conditioning flabellum is obtained by the preparation of above-mentioned method.
Pass through technique scheme, first the present invention carries out activation treatment to polynite and bamboo charcoal ash and obtains filter residue, then make the automative air conditioning flabellum obtained not only have excellent mechanical property by the synergy of PP, AES, ETFE, PEO, melamine cyanurate, the different certain herbaceous plants with big flowers ester of phthalic acid two, barium oxide, rare earth oxide, sodium vanadate, rosin, starch and filter residue, also there is excellent weathering resistance simultaneously.
Other features and advantages of the present invention are described in detail in embodiment part subsequently.
Embodiment
Below the specific embodiment of the present invention is described in detail.Should be understood that, embodiment described herein, only for instruction and explanation of the present invention, is not limited to the present invention.
The invention provides a kind of preparation method of automative air conditioning flabellum, this preparation method comprises:
1) polynite and bamboo charcoal ash be soaked in hydrochloric acid soln and carry out sonic oscillation, then crossing leaching filter residue;
2) PP, AES, ETFE, PEO, melamine cyanurate, the different certain herbaceous plants with big flowers ester of phthalic acid two, barium oxide, rare earth oxide, sodium vanadate, rosin, starch and filter residue are carried out melting, then curing molding obtains automative air conditioning flabellum.
In the present invention, the actual conditions of sonic oscillation can be selected in wide scope, but can to activate fully to make polynite and bamboo charcoal ash and compatible fully, preferably, in step 1) in, in step 1) in, sonic oscillation at least meets the following conditions: vibration temperature is 40-60 DEG C, the time of vibration is 45-60min, and hyperacoustic frequency is 2.5 ten thousand-3.5 ten thousand Hz.
In step 1 of the present invention) in, the consumption of each material can be selected in wide scope, but can to activate fully to make polynite and bamboo charcoal ash and compatible fully, preferably, in step 1) in, relative to the polynite of 100 weight parts, the consumption of bamboo charcoal ash is 7-12 weight part; And the pH of hydrochloric acid soln is 4-6.More preferably, relative to the polynite of 100 weight parts, the consumption of hydrochloric acid soln is 500-800 weight part.
In step 2 of the present invention) in, the consumption of each material can be selected in wide scope, but protect solar or lunar halo can have more excellent weathering resistance and mechanical property in order to what make to obtain, preferably, relative to the PP of 100 weight parts, the consumption of AES is 25-30 weight part, the consumption of ETFE is 5-9 weight part, the consumption of PEO is 3-5 weight part, the consumption of melamine cyanurate is 1.5-3 weight part, the consumption of the different certain herbaceous plants with big flowers ester of phthalic acid two is 8-15 weight part, barytic consumption is 2-7 weight part, the consumption of rare earth oxide is 0.5-1 weight part, the consumption of sodium vanadate is 4-9 weight part, the consumption of rosin is 3.5-5.5 weight part, the consumption of starch is 10-15 weight part, the consumption of filter residue is 9-20 weight part.
In the present invention, PP, AES, ETFE, PEO, the concrete kind of melamine cyanurate and rare earth oxide to select in wide scope, but protect solar or lunar halo can have more excellent weathering resistance and mechanical property in order to what make to obtain, preferably, the weight-average molecular weight of PP is 5000-15000, the weight-average molecular weight of AES is 10000-30000, the weight-average molecular weight of ETFE is 3000-8000, the weight-average molecular weight of PEO is 4000-7000, melamine cyanurate is selected from poly cyanamid NaDCC, poly cyanamid cyanuric acid potassium, one or more in poly cyanamid cyanuric acid calcium and poly cyanamid Cyanuric Barium, rare earth oxide is selected from cerium oxide, europium sesquioxide, one or more in dysprosium oxide and gadolinium sesquioxide.
In step 2 of the present invention) in, the condition of melting can be selected in wide scope, but protects solar or lunar halo can have more excellent weathering resistance and mechanical property in order to what make to obtain, preferably, melting at least meets the following conditions: melt temperature is 205-215 DEG C, and the fusion time is 2-3h.
In step 2 of the present invention) in, the condition of curing molding can be selected in wide scope, but protect solar or lunar halo can have more excellent weathering resistance and mechanical property in order to what make to obtain, preferably, curing molding is extrusion moulding, and at least meet the following conditions: die temperature is 185-190 DEG C, the pressure of head is 0.02-0.05MPa.In order to improve weathering resistance and the mechanical property of protecting solar or lunar halo further, more preferably, in the operation of extrusion moulding, batch mixing will be by also carrying out progressively water-cooled process after die head, and progressively water-cooled process comprises three phases successively along opening for feed to the direction of discharge port: the subordinate phase of first stage of 65-80 DEG C, 45-60 DEG C and the phase III of 15-35 DEG C.
Present invention also offers a kind of automative air conditioning flabellum, this automative air conditioning flabellum is obtained by the preparation of above-mentioned method.
Below will be described the present invention by embodiment.
Embodiment 1
1) polynite and bamboo charcoal ash are soaked in pH according to the weight ratio of 100:10 and are the hydrochloric acid soln (weight ratio of polynite and hydrochloric acid soln is 100:700) of 5 and (temperature of vibrating is 50 DEG C to carry out sonic oscillation 50min, hyperacoustic frequency is 30,000 Hz), then cross leaching filter residue;
2) by PP (weight-average molecular weight is 10000), AES (weight-average molecular weight is 20000), ETFE (weight-average molecular weight is 5000), PEO (weight-average molecular weight is 6000), melamine cyanurate sodium, the different certain herbaceous plants with big flowers ester of phthalic acid two, barium oxide, europium sesquioxide, sodium vanadate, rosin, starch and filter residue carry out melting 2.5h according to after the weight ratio mixing of 100:28:6:4:1.7:11:5:0.8:6:4:12:10 at 210 DEG C, then by batch mixing, by extrusion die, (die temperature is 188 DEG C, the pressure of head is 0.04MPa), then successively through the water-cooled of first stage of 75 DEG C, the water-cooled of subordinate phase of 50 DEG C and the water-cooled of the phase III of 25 DEG C are with obtained automative air conditioning flabellum A1.
Embodiment 2
1) polynite and bamboo charcoal ash are soaked in pH according to the weight ratio of 100:7 and are the hydrochloric acid soln (weight ratio of polynite and hydrochloric acid soln is 100:500) of 4 and (temperature of vibrating is 40 DEG C to carry out sonic oscillation 45min, hyperacoustic frequency is 2.5 ten thousand Hz), then cross leaching filter residue;
2) by PP (weight-average molecular weight is 5000), AES (weight-average molecular weight is 10000), ETFE (weight-average molecular weight is 3000), PEO (weight-average molecular weight is 4000), melamine cyanurate potassium, the different certain herbaceous plants with big flowers ester of phthalic acid two, barium oxide, dysprosium oxide, sodium vanadate, rosin, starch and filter residue carry out melting 2h according to after the weight ratio mixing of 100:25:5:3:1.5:8:2:0.5:4:3.5:10:9 at 205 DEG C, then by batch mixing, by extrusion die, (die temperature is 185 DEG C, the pressure of head is 0.02MPa), then successively through the water-cooled of first stage of 65 DEG C, the water-cooled of subordinate phase of 45 DEG C and the water-cooled of the phase III of 15 DEG C are with obtained automative air conditioning flabellum A2.
Embodiment 3
1) polynite and bamboo charcoal ash are soaked in pH according to the weight ratio of 100:12 and are the hydrochloric acid soln (weight ratio of polynite and hydrochloric acid soln is 100:800) of 6 and (temperature of vibrating is 60 DEG C to carry out sonic oscillation 60min, hyperacoustic frequency is 3.5 ten thousand Hz), then cross leaching filter residue;
2) by PP (weight-average molecular weight is 15000), AES (weight-average molecular weight is 30000), ETFE (weight-average molecular weight is 8000), PEO (weight-average molecular weight is 7000), melamine cyanurate barium, the different certain herbaceous plants with big flowers ester of phthalic acid two, barium oxide, cerium oxide, sodium vanadate, rosin, starch and filter residue carry out melting 3h according to after the weight ratio mixing of 100:30:9:5:3:15:7:1:9:5.5:15:20 at 215 DEG C, then by batch mixing, by extrusion die, (die temperature is 190 DEG C, the pressure of head is 0.05MPa), then successively through the water-cooled of first stage of 80 DEG C, the water-cooled of subordinate phase of 60 DEG C and the water-cooled of the phase III of 35 DEG C are with obtained automative air conditioning flabellum A3.
Comparative example 1
Carry out obtained automative air conditioning flabellum B1 according to the method for embodiment 1, unlike, step 1) in not containing polynite.
Comparative example 2
Carry out obtained automative air conditioning flabellum B2 according to the method for embodiment 1, unlike, step 1) in containing bamboo charcoal ash.
Comparative example 3
Carry out obtained automative air conditioning flabellum B3 according to the method for embodiment 1, unlike, step 1) in do not use hydrochloric acid soln.
Comparative example 4
Carry out obtained automative air conditioning flabellum B4 according to the method for embodiment 1, unlike, step 1) in do not use sonic oscillation process.
Comparative example 5
Carry out obtained automative air conditioning flabellum B5 according to the method for embodiment 1, unlike, step 2) in do not use rare earth oxide.
Comparative example 6
Carry out obtained automative air conditioning flabellum B6 according to the method for embodiment 1, unlike, step 2) in do not use melamine cyanurate.
Comparative example 7
Carry out obtained automative air conditioning flabellum B7 according to the method for embodiment 1, unlike, step 2) in do not use sodium vanadate.
Comparative example 8
Carry out obtained automative air conditioning flabellum B8 according to the method for embodiment 1, unlike, step 2) in do not use filter residue.
Test example 1
Process 2h at above-mentioned automative air conditioning flabellum is placed in-10 DEG C, then detect flexural strength (σ
1/ MPa) and and ultimate compression strength (σ
bc1/ kgcm
-2), result is as shown in table 1.
Process 2h at above-mentioned automative air conditioning flabellum is placed in 170 DEG C, then detect flexural strength (σ
2/ MPa) and and ultimate compression strength (σ
bc2/ kgcm
-2), result is as shown in table 1.
Table 1
| σ 1/MPa | σ bc1/kg·cm -2 | σ 2/MPa | σ bc2/kg·cm -2 | |
| A1 | 160 | 215 | 159 | 219 |
| A2 | 155 | 219 | 158 | 218 |
| A3 | 159 | 216 | 161 | 205 |
| B1 | 119 | 159 | 125 | 124 |
| B2 | 122 | 158 | 120 | 110 |
| B3 | 118 | 152 | 119 | 117 |
| B4 | 124 | 150 | 118 | 127 |
| B5 | 128 | 153 | 119 | 108 |
| B6 | 129 | 147 | 112 | 120 |
| B7 | 123 | 149 | 119 | 125 |
| B8 | 117 | 153 | 118 | 116 |
More than describe the preferred embodiment of the present invention in detail; but the present invention is not limited to the detail in above-mentioned embodiment, within the scope of technical conceive of the present invention; can carry out multiple simple variant to technical scheme of the present invention, these simple variant all belong to protection scope of the present invention.
It should be noted that in addition, each concrete technical characteristic described in above-mentioned embodiment, in reconcilable situation, can be combined by any suitable mode, in order to avoid unnecessary repetition, the present invention illustrates no longer separately to various possible array mode.
In addition, also can carry out arbitrary combination between various different embodiment of the present invention, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (10)
1. a preparation method for automative air conditioning flabellum, is characterized in that, described preparation method comprises:
1) polynite and bamboo charcoal ash be soaked in hydrochloric acid soln and carry out sonic oscillation, then crossing leaching filter residue;
2) PP, AES, ETFE, PEO, melamine cyanurate, phthalic acid two different certain herbaceous plants with big flowers ester, barium oxide, rare earth oxide, sodium vanadate, rosin, starch and described filter residue are carried out melting, then curing molding obtains described automative air conditioning flabellum.
2. preparation method according to claim 1, wherein, in step 1) in, in step 1) in, described sonic oscillation at least meets the following conditions: vibration temperature is 40-60 DEG C, and the time of vibration is 45-60min, and hyperacoustic frequency is 2.5 ten thousand-3.5 ten thousand Hz.
3. preparation method according to claim 1, wherein, in step 1) in, relative to the described polynite of 100 weight parts, the consumption of described bamboo charcoal ash is 7-12 weight part; And the pH of described hydrochloric acid soln is 4-6.
4. preparation method according to claim 3, wherein, relative to the described polynite of 100 weight parts, the consumption of described hydrochloric acid soln is 500-800 weight part.
5. according to the preparation method in claim 1-4 described in any one, wherein, relative to the described PP of 100 weight parts, the consumption of described AES is 25-30 weight part, the consumption of described ETFE is 5-9 weight part, the consumption of described PEO is 3-5 weight part, the consumption of described melamine cyanurate is 1.5-3 weight part, the consumption of the different certain herbaceous plants with big flowers ester of described phthalic acid two is 8-15 weight part, described barytic consumption is 2-7 weight part, the consumption of described rare earth oxide is 0.5-1 weight part, the consumption of described sodium vanadate is 4-9 weight part, the consumption of described rosin is 3.5-5.5 weight part, the consumption of described starch is 10-15 weight part, the consumption of described filter residue is 9-20 weight part.
6. preparation method according to claim 5, wherein, the weight-average molecular weight of described PP is 5000-15000, the weight-average molecular weight of described AES is 10000-30000, the weight-average molecular weight of described ETFE is 3000-8000, the weight-average molecular weight of described PEO is 4000-7000, described melamine cyanurate be selected from poly cyanamid NaDCC, poly cyanamid cyanuric acid potassium, poly cyanamid cyanuric acid calcium and poly cyanamid Cyanuric Barium one or more, described rare earth oxide be selected from cerium oxide, europium sesquioxide, dysprosium oxide and gadolinium sesquioxide one or more.
7. preparation method according to claim 5, wherein, in step 2) in, described melting at least meets the following conditions: melt temperature is 205-215 DEG C, and the fusion time is 2-3h.
8. the preparation method according to claim 6 or 7, wherein, in step 2) in, described curing molding is extrusion moulding, and at least meets the following conditions: die temperature is 185-190 DEG C, and the pressure of head is 0.02-0.05MPa.
9. preparation method according to claim 8, wherein, in the operation of described extrusion moulding, batch mixing will be by also carrying out progressively water-cooled process after die head, and the process of described progressively water-cooled comprises three phases successively along opening for feed to the direction of discharge port: the subordinate phase of first stage of 65-80 DEG C, 45-60 DEG C and the phase III of 15-35 DEG C.
10. an automative air conditioning flabellum, is characterized in that, described automative air conditioning flabellum is obtained by the method preparation in claim 1-9 described in any one.
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| CN106218735A (en) * | 2016-10-09 | 2016-12-14 | 芜湖瑞德机械科技有限公司 | A kind of high intensity AES/PP automobile spoiler and preparation method thereof |
| CN107177101A (en) * | 2017-07-11 | 2017-09-19 | 安徽智联管理咨询有限公司 | High intensity wheel chair cushions plate and preparation method thereof |
| CN107540955A (en) * | 2017-08-10 | 2018-01-05 | 深圳沃海森科技有限公司 | Air conditioning for automobiles flabellum of good weatherability and preparation method thereof |
| CN108312567A (en) * | 2018-01-13 | 2018-07-24 | 青岛威德电子科技有限公司 | Automotive hub sign manufacturing method |
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| CN106218735A (en) * | 2016-10-09 | 2016-12-14 | 芜湖瑞德机械科技有限公司 | A kind of high intensity AES/PP automobile spoiler and preparation method thereof |
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| CN107540955A (en) * | 2017-08-10 | 2018-01-05 | 深圳沃海森科技有限公司 | Air conditioning for automobiles flabellum of good weatherability and preparation method thereof |
| CN108312567A (en) * | 2018-01-13 | 2018-07-24 | 青岛威德电子科技有限公司 | Automotive hub sign manufacturing method |
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Application publication date: 20160210 |