CN111469365A - Reaction injection molding process of automobile spoiler - Google Patents
Reaction injection molding process of automobile spoiler Download PDFInfo
- Publication number
- CN111469365A CN111469365A CN202010239407.5A CN202010239407A CN111469365A CN 111469365 A CN111469365 A CN 111469365A CN 202010239407 A CN202010239407 A CN 202010239407A CN 111469365 A CN111469365 A CN 111469365A
- Authority
- CN
- China
- Prior art keywords
- automobile spoiler
- spoiler
- mold
- molding process
- automobile
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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
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0001—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor characterised by the choice of material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/76—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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/76—Measuring, controlling or regulating
- B29C45/77—Measuring, controlling or regulating of velocity or pressure of moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/76—Measuring, controlling or regulating
- B29C45/78—Measuring, controlling or regulating of temperature
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
-
- 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
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76494—Controlled parameter
- B29C2945/76498—Pressure
-
- 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
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76494—Controlled parameter
- B29C2945/76531—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
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76494—Controlled parameter
- B29C2945/76551—Time
- B29C2945/76561—Time duration
Abstract
The invention relates to a reaction injection molding process of an automobile spoiler, which comprises the following steps of removing burrs in an automobile spoiler mold, spraying a release agent in the automobile spoiler mold, wiping the release agent, regulating the temperature of an upper mold to be 80 +/-10 ℃ and the temperature of a lower mold to be 90 +/-10 ℃, curing and maintaining pressure for 30 +/-10 seconds, opening the upper mold and the lower mold (opening the mold) to take out a product, namely the automobile spoiler, mixing polyether polyol (PO L Y), weighed Isocyanate (ISO) and weighed mineral powder in proportion into liquid, and injecting the mixed liquid into the automobile spoiler mold at the moment of mixing to cure and form the automobile spoiler.
Description
Technical Field
The invention relates to a reaction injection molding process of an automobile spoiler.
Background
The automobile spoiler is a part similar to an inverted airplane empennage and arranged on the rear cover of a car. Some cars are equipped with a front spoiler, commonly known as an air dam. The upper side of some automobiles is provided with a side skirt, which is also one type of spoiler. The rear spoiler is also called "car tail" in practice. On one hand, the appearance of the car is more dynamic; on the other hand, the more important function is to effectively reduce the air resistance generated when the vehicle runs at high speed, thereby saving fuel and improving the running stability of the vehicle.
The conventional automobile spoiler adopts a plastic injection molding process as a common process, and the conventional process has the following defects: (1) the requirements of increasingly higher appearance coating performance and complex appearance design are difficult to meet due to the limitation of injection mold stripping. (2) The mechanical property of the product is low, and the cost of the equipment and the mould is high.
Disclosure of Invention
The invention aims to provide a reaction injection molding process of an automobile spoiler, which has high quality, meets the requirements of appearance coating performance and complex appearance design and has lower cost.
The purpose of the invention is realized as follows:
a reaction injection molding process of an automobile spoiler is characterized in that: comprises the following steps of (a) carrying out,
the method comprises the following steps: removing the flash in the automobile spoiler mold;
step two: spraying a release agent in an automobile spoiler mold;
step three: wiping the release agent;
step four: closing the upper die and the lower die to form the automobile spoiler die (die assembly);
step five, respectively weighing polyether polyol (PO L Y), Isocyanate (ISO) and mineral powder, mixing the polyether polyol (PO L Y), the Isocyanate (ISO) and the mineral powder to form liquid, wherein the injection ratio of the polyether polyol (PO L Y) to the Isocyanate (ISO) is 100:110 +/-5, and the ratio of the polyether polyol (PO L Y) to the mineral powder is 100: 57;
step six: injecting the liquid obtained in the step five into an automobile spoiler mold, wherein the injection amount is 1000 +/-20 g, the injection time is 1.1 +/-0.2 s, and the injection pressure is 160 +/-15 bar;
step seven: adjusting the temperature of the upper die to be 80 +/-10 ℃, and adjusting the temperature of the lower die to be 90 +/-10 ℃;
step eight: curing and maintaining the pressure for 30 +/-10 s;
step nine: opening the upper die and the lower die (opening the die) and taking out a product: automobile spoiler.
Polyether polyol (PO L Y), weighed Isocyanate (ISO) and weighed mineral powder are mixed into liquid according to a proportion, the mixed liquid is injected into an automobile spoiler mold at the moment of mixing to be cured and pressure-maintained to form the automobile spoiler, the steps are easy to produce the thin-wall object, and the produced automobile spoiler has good coating performance, excellent mechanical performance, free product design and low equipment and mold cost.
The aim of the invention can also be solved by the following technical measures:
as a more specific scheme, after the automobile spoiler is taken out, the following post-processing operations are carried out on the automobile spoiler, and the step one is as follows: and (3) removing the flash (trimming) of the automobile spoiler, and step two: and (5) curing. The flash of the automobile spoiler is removed through the operation, so that the automobile spoiler is more in line with the design requirement.
More specifically, the polyether polyol (PO L Y) and the Isocyanate (ISO) are injected at a ratio of 100: 110.
More specifically, the injection amount of the liquid injected into the automobile spoiler mold in the step five is 1000g, the injection time is 1.1s, and the injection pressure is 160 bar.
More specifically, the temperature of the upper mold is adjusted to 80 ℃ and the temperature of the lower mold is adjusted to 90 ℃.
More specifically, the dwell time is 30 s.
The invention has the following beneficial effects:
according to the invention, polyether polyol (PO L Y), weighed Isocyanate (ISO) and weighed mineral powder are mixed into liquid according to a proportion, the mixed liquid is injected into an automobile spoiler mold at the moment of mixing to be cured and pressure-maintained to form the automobile spoiler, the steps are easy to produce the thin-wall object, and the produced automobile spoiler has good coating performance, excellent mechanical performance, free product design and low equipment and mold cost.
Drawings
FIG. 1 is a table of parameters for molding an automobile spoiler according to the reaction injection molding process of the present invention.
FIG. 2 is a schematic process flow diagram of the reaction injection molding process of the automobile spoiler of the present invention.
Detailed Description
The invention is further described with reference to the following figures and examples:
referring to fig. 1 to 2, a reaction injection molding process of an automotive spoiler includes the steps of,
the method comprises the following steps: removing the flash in the automobile spoiler mold;
step two: spraying a release agent in an automobile spoiler mold;
step three: wiping the release agent;
step four: closing the upper die and the lower die to form the automobile spoiler die (die assembly);
step five, respectively weighing polyether polyol (PO L Y), Isocyanate (ISO) and mineral powder, mixing the polyether polyol (PO L Y), the Isocyanate (ISO) and the mineral powder to form liquid, wherein the injection ratio of the polyether polyol (PO L Y) to the Isocyanate (ISO) is 100:110, and the ratio of the polyether polyol (PO L Y) to the mineral powder is 100: 57;
step six: injecting the liquid obtained in the step five into an automobile spoiler mold, wherein the injection amount is 1000g, the injection time is 1.1s, and the injection pressure is 160 bar;
step seven: adjusting the temperature of the upper die to 80 ℃ and the temperature of the lower die to 90 ℃;
step eight: curing and maintaining the pressure for 30 s;
step nine: opening the upper die and the lower die (opening the die) and taking out a product: automobile spoiler.
The automobile spoiler can be continuously manufactured by repeating the steps from the step one to the step 9 for cyclic operation
After the automobile spoiler is taken out, carrying out the following post-processing operation on the automobile spoiler, and carrying out the following steps: and (3) removing the flash (trimming) of the automobile spoiler, and step two: and (5) curing.
According to the invention, polyether polyol (PO L Y), weighed Isocyanate (ISO) and weighed mineral powder are mixed into liquid according to a proportion, the mixed liquid is injected into an automobile spoiler mold at the moment of mixing to be cured and pressure-maintained to form the automobile spoiler, the steps are easy to produce the thin-wall object, and the produced automobile spoiler has good coating performance, excellent mechanical performance, free product design and low equipment and mold cost.
Claims (6)
1. A reaction injection molding process of an automobile spoiler is characterized in that: comprises the following steps of (a) carrying out,
the method comprises the following steps: removing the flash in the automobile spoiler mold;
step two: spraying a release agent in an automobile spoiler mold;
step three: wiping the release agent;
step four: closing the upper die and the lower die to form the automobile spoiler die (die assembly);
step five, respectively weighing polyether polyol (PO L Y), Isocyanate (ISO) and mineral powder, mixing the polyether polyol (PO L Y), the Isocyanate (ISO) and the mineral powder to form liquid, wherein the injection ratio of the polyether polyol (PO L Y) to the Isocyanate (ISO) is 100:110 +/-5, and the ratio of the polyether polyol (PO L Y) to the mineral powder is 100: 57;
step six: injecting the liquid obtained in the step five into an automobile spoiler mold, wherein the injection amount is 1000 +/-20 g, the injection time is 1.1 +/-0.2 s, and the injection pressure is 160 +/-15 bar;
step seven: adjusting the temperature of the upper die to be 80 +/-10 ℃, and adjusting the temperature of the lower die to be 90 +/-10 ℃;
step eight: curing and maintaining the pressure for 30 +/-10 s;
step nine: opening the upper die and the lower die (opening the die) and taking out a product: automobile spoiler.
2. The reaction injection molding process of an automotive spoiler according to claim 1, characterized in that: after the automobile spoiler is taken out, carrying out the following post-processing operation on the automobile spoiler, and carrying out the following steps of: and (3) removing the flash (trimming) of the automobile spoiler, and step two: and (5) curing.
3. The reaction injection molding process for the spoiler of claim 1, wherein an injection ratio of the polyether polyol (PO L Y) and the Isocyanate (ISO) is 100: 110.
4. The reaction injection molding process of an automotive spoiler according to claim 1, characterized in that: and step five, injecting the liquid into the automobile spoiler mold with the injection amount of 1000g, the injection time of 1.1s and the injection pressure of 160 bar.
5. The reaction injection molding process of an automotive spoiler according to claim 1, characterized in that: the temperature of the upper die is adjusted to 80 ℃, and the temperature of the lower die is adjusted to 90 ℃.
6. The reaction injection molding process of an automotive spoiler according to claim 1, characterized in that: the dwell time was 30 s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010239407.5A CN111469365A (en) | 2020-03-30 | 2020-03-30 | Reaction injection molding process of automobile spoiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010239407.5A CN111469365A (en) | 2020-03-30 | 2020-03-30 | Reaction injection molding process of automobile spoiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111469365A true CN111469365A (en) | 2020-07-31 |
Family
ID=71749310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010239407.5A Pending CN111469365A (en) | 2020-03-30 | 2020-03-30 | Reaction injection molding process of automobile spoiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111469365A (en) |
Citations (12)
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|---|---|---|---|---|
| JPH0486217A (en) * | 1990-07-30 | 1992-03-18 | Sumitomo Bayer Urethane Kk | Reinforced polyurethane rim molded article |
| WO2005010106A2 (en) * | 2003-07-22 | 2005-02-03 | Omnova Solutions Inc. | Base-coat in-mold coating |
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| JP5869893B2 (en) * | 2012-01-24 | 2016-02-24 | 株式会社Adeka | Glass fiber sizing agent, glass fiber for fiber reinforced resin, and fiber reinforced synthetic resin composition containing aqueous polyurethane resin composition |
| CN106009028A (en) * | 2016-05-19 | 2016-10-12 | 晋江国盛新材料科技有限公司 | Preparation method of bonding molding body of color or bi-color TPU (thermoplastic polyurethane) expanded particles |
| CN106476232A (en) * | 2016-09-29 | 2017-03-08 | 广西大学 | The Shooting Technique of ABS material spoiler |
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2020
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| WO2005010106A2 (en) * | 2003-07-22 | 2005-02-03 | Omnova Solutions Inc. | Base-coat in-mold coating |
| JP2013086279A (en) * | 2011-10-13 | 2013-05-13 | Kaneka Corp | Curable resin composition for thermoforming film, and thermoforming film made by laminating resin composition |
| CN103043121A (en) * | 2011-10-14 | 2013-04-17 | 曹克波 | Spoiler with strong anti-pressure capacity |
| JP5869893B2 (en) * | 2012-01-24 | 2016-02-24 | 株式会社Adeka | Glass fiber sizing agent, glass fiber for fiber reinforced resin, and fiber reinforced synthetic resin composition containing aqueous polyurethane resin composition |
| CN104583312A (en) * | 2012-08-24 | 2015-04-29 | 巴斯夫欧洲公司 | Polymer mixtures for the production of thin-walled injection molded parts |
| CN107075078A (en) * | 2014-08-18 | 2017-08-18 | 巴斯夫欧洲公司 | For the polybutadiene enol for the polyester modification for preparing polyurethane elastomer and thermoplastic polyurethane |
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| CN208530725U (en) * | 2018-06-08 | 2019-02-22 | 芜湖国风塑胶科技有限公司 | A kind of spoiler assembly for new-energy automobile |
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Application publication date: 20200731 |