CN107936545A - A kind of high-performance thermoplastic molding production process - Google Patents
A kind of high-performance thermoplastic molding production process Download PDFInfo
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- CN107936545A CN107936545A CN201711344147.2A CN201711344147A CN107936545A CN 107936545 A CN107936545 A CN 107936545A CN 201711344147 A CN201711344147 A CN 201711344147A CN 107936545 A CN107936545 A CN 107936545A
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- production process
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Classifications
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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
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
-
- 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
- B29B13/10—Conditioning or physical treatment of the material to be shaped by grinding, e.g. by triturating; by sieving; by filtering
-
- 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
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/86—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the nozzle zone
- B29C48/865—Heating
-
- 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
- B29C2948/92009—Measured parameter
- B29C2948/92114—Dimensions
- B29C2948/92161—Volume or quantity
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a kind of high-performance thermoplastic molding production process, its raw material are as follows by weight：40 50 parts of polyamide,68 parts of sodium chloride,50% 68 parts of ethanol,10 14 parts of diethyl carbonate,10 20 parts of dimethyl terephthalate (DMT),24 parts of accelerating agent,57 parts of antioxidant,8 10 parts of 34 parts of tackifying resin and inorganic silicate,Change traditional composition of raw materials,With polyamide,Sodium chloride,50% ethanol,Diethyl carbonate,Dimethyl terephthalate (DMT),Accelerating agent,Antioxidant,Tackifying resin and inorganic silicate are raw material,The proportion of stringent control each component,Improve the performance of material in itself,Stability is more preferable,Before melt is injected,Heat treatment is carried out to molding die first,Make the temperature of molding die between 300 DEG C 350 DEG C,Then melt is injected again,Molding effect is ensured well,First-time qualification rate is high,Melt is after metering pump accurate measurement,Each distribution duct is uniformly sent to again,Add metering pump,Ensure uniform feeding.
Description
Technical field
The invention belongs to thermoplastic molding's technical field, and more specifically, more particularly to a kind of high-performance thermoplastic is molded
Production technology.
Background technology
Industrial (industry) refers to collection raw material-pretreatment, and they is processed into work and the process of product.Industry is society
The product of division development, by handicraft, mordern industry, the several developing stage of modern industry.Industry is the weight of secondary industry
Part is wanted, is divided into two major class of light industry and heavy industry.2014, Chinese industrial total output value was up to 4 trillion dollars, more than U.S.
State becomes No.1 industrial production state of the world.
In plastics industry, shaping is the extrudability and mouldability using plastics, first by loose granular or powder
Shape raw material is sent into the barrel of high temperature from injection molding machine and is heated, and fusion plastification, makes viscous state melt, with certain pressure and
Speed is filled with mould, the opening mold after pressurize, cooling, so that it may obtain the plastic products of definite shape and size.Thermoforming
To be heated to softening by thermoplastic plastic sheet, under gas pressure, fluid pressure or mechanical pressure, using appropriate mould or
Fixture and a kind of forming method for becoming product.
Now lack a kind of high-performance thermoplastic molding production process, what traditional thermoplastic molding's production technology was produced
Properties of product are unstable, and molding effect is poor, have significant limitation.
The content of the invention
The purpose of the present invention is to solve shortcoming existing in the prior art, and a kind of high-performance thermoplastic proposed into
Type production technology.
To achieve the above object, the present invention provides following technical solution：A kind of high-performance thermoplastic molding production process, its
Raw material is as follows by weight：40-50 parts of polyamide, 6-8 parts of sodium chloride, 50% 6-8 parts of ethanol, 10-14 parts of diethyl carbonate are right
10-20 parts of rutgers, 2-4 parts of accelerating agent, 5-7 parts of antioxidant, 3-4 parts of tackifying resin and inorganic silicate 8-10
Part, also specifically include and step is produced by below：
S1：The preparation of raw material, by polyamide, sodium chloride, 50% ethanol, diethyl carbonate, dimethyl terephthalate (DMT), accelerating agent,
Antioxidant, tackifying resin and inorganic silicate weigh in proportion measure it is spare；
S2：Pretreatment of raw material, polyamide, sodium chloride and inorganic silicate are placed in crusher and crushed, and the broken time exists
It is then that material collection is spare between 0.4h-0.5h, then the material being collected into is placed in grinder, using grinder come pair
Material is ground, and finally the material after grinding is added in screening machine, material is sieved using screening machine, then
Material collection is spare；
S3：Melting, is controlled using pneumatic operated valve, makes 50% ethanol, diethyl carbonate, dimethyl terephthalate (DMT), accelerating agent, anti-old
Agent and tackifying resin are added to intermediate bunker successively, then the obtained mixed materials of step S2 are added, and material is continuously sent
Enter and melted into screw extruder, molten mass is entered melting distribution duct；
S4：It is cooled and shaped, the melt melted in step S3 is each led into molding die and is cooled and shaped；
S5：The demoulding, shaped article is taken out.
Preferably, 60-80 mesh sieves are used in the step S2, ensure that material particles are uniform.
Preferably, melt after metering pump accurate measurement, then is uniformly sent to each distribution duct in the step S3, is increased
Design flow pumps, and ensures uniform feeding.
Preferably, in the step S3, before melt is injected, heat treatment is carried out to molding die first, makes shaping
Then the temperature of mould is again injected melt between 300 DEG C -350 DEG C.
The technique effect and advantage of the present invention：A kind of high-performance thermoplastic molding production process of the present invention, changes traditional
Composition of raw materials, with polyamide, sodium chloride, 50% ethanol, diethyl carbonate, dimethyl terephthalate (DMT), accelerating agent, antioxidant, increasing
Viscosity resin and inorganic silicate are raw material, and the stringent proportion for controlling each component, improves the performance of material in itself, stability is more
It is good, before melt inject, first to molding die progress heat treatment, make the temperature of molding die 300 DEG C -350 DEG C it
Between, then melt is injected again, molding effect is ensured well, and first-time qualification rate is high, and melt is through metering pump accurate measurement
Afterwards, then uniformly each distribution duct is sent to, adds metering pump, ensures uniform feeding.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, below in conjunction with specific embodiment, to this
Invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, not
For limiting the present invention.Based on the embodiments of the present invention, those of ordinary skill in the art are not before creative work is made
All other embodiments obtained are put, belong to the scope of protection of the invention.
Embodiment 1
A kind of high-performance thermoplastic molding production process provided by the invention, its raw material are as follows by weight：40 parts of polyamide, chlorine
Change 6 parts of sodium, 50% 6 parts of ethanol, 10 parts of diethyl carbonate, 10 parts of dimethyl terephthalate (DMT), 2 parts of accelerating agent, 5 parts of antioxidant, increase
8 parts of 3 parts of viscosity resin and inorganic silicate, also specifically include and step are produced by below：
S1：The preparation of raw material, by polyamide, sodium chloride, 50% ethanol, diethyl carbonate, dimethyl terephthalate (DMT), accelerating agent,
Antioxidant, tackifying resin and inorganic silicate weigh in proportion measure it is spare；
S2：Pretreatment of raw material, polyamide, sodium chloride and inorganic silicate are placed in crusher and crushed, and the broken time exists
It is then that material collection is spare between 0.4h-0.5h, then the material being collected into is placed in grinder, using grinder come pair
Material is ground, and finally the material after grinding is added in screening machine, material is sieved using screening machine, is used
60-80 mesh sieves, ensure that material particles are uniform, then that material collection is spare；
S3：Melting, is controlled using pneumatic operated valve, makes 50% ethanol, diethyl carbonate, dimethyl terephthalate (DMT), accelerating agent, anti-old
Agent and tackifying resin are added to intermediate bunker successively, then the obtained mixed materials of step S2 are added, and material is continuously sent
Enter and melted into screw extruder, melt is after metering pump accurate measurement, then is uniformly sent to each distribution duct, adds
Metering pump, ensures uniform feeding, molten mass is entered melting distribution duct；
S4：It is cooled and shaped, the melt melted in step S3 is each led into molding die and is cooled and shaped, in injection melt
Before, heat treatment is carried out to molding die first, makes the temperature of molding die between 300 DEG C -350 DEG C, then again will be molten
Body injects；
S5：The demoulding, shaped article is taken out.
Embodiment 2
A kind of high-performance thermoplastic molding production process provided by the invention, its raw material are as follows by weight：45 parts of polyamide, chlorine
Change 7 parts of sodium, 50% 7 parts of ethanol, 12 parts of diethyl carbonate, 15 parts of dimethyl terephthalate (DMT), 3 parts of accelerating agent, 6 parts of antioxidant, increase
9 parts of 3.5 parts of viscosity resin and inorganic silicate, also specifically include and step are produced by below：
S1：The preparation of raw material, by polyamide, sodium chloride, 50% ethanol, diethyl carbonate, dimethyl terephthalate (DMT), accelerating agent,
Antioxidant, tackifying resin and inorganic silicate weigh in proportion measure it is spare；
S2：Pretreatment of raw material, polyamide, sodium chloride and inorganic silicate are placed in crusher and crushed, and the broken time exists
It is then that material collection is spare between 0.4h-0.5h, then the material being collected into is placed in grinder, using grinder come pair
Material is ground, and finally the material after grinding is added in screening machine, material is sieved using screening machine, is used
60-80 mesh sieves, ensure that material particles are uniform, then that material collection is spare；
S3：Melting, is controlled using pneumatic operated valve, makes 50% ethanol, diethyl carbonate, dimethyl terephthalate (DMT), accelerating agent, anti-old
Agent and tackifying resin are added to intermediate bunker successively, then the obtained mixed materials of step S2 are added, and material is continuously sent
Enter and melted into screw extruder, melt is after metering pump accurate measurement, then is uniformly sent to each distribution duct, adds
Metering pump, ensures uniform feeding, molten mass is entered melting distribution duct；
S4：It is cooled and shaped, the melt melted in step S3 is each led into molding die and is cooled and shaped, in injection melt
Before, heat treatment is carried out to molding die first, makes the temperature of molding die between 300 DEG C -350 DEG C, then again will be molten
Body injects；
S5：The demoulding, shaped article is taken out.
Embodiment 3
A kind of high-performance thermoplastic molding production process provided by the invention, its raw material are as follows by weight：50 parts of polyamide, chlorine
Change 8 parts of sodium, 50% 8 parts of ethanol, 14 parts of diethyl carbonate, 20 parts of dimethyl terephthalate (DMT), 4 parts of accelerating agent, 7 parts of antioxidant, increase
10 parts of 4 parts of viscosity resin and inorganic silicate, also specifically include and step are produced by below：
S1：The preparation of raw material, by polyamide, sodium chloride, 50% ethanol, diethyl carbonate, dimethyl terephthalate (DMT), accelerating agent,
Antioxidant, tackifying resin and inorganic silicate weigh in proportion measure it is spare；
S2：Pretreatment of raw material, polyamide, sodium chloride and inorganic silicate are placed in crusher and crushed, and the broken time exists
It is then that material collection is spare between 0.4h-0.5h, then the material being collected into is placed in grinder, using grinder come pair
Material is ground, and finally the material after grinding is added in screening machine, material is sieved using screening machine, is used
60-80 mesh sieves, ensure that material particles are uniform, then that material collection is spare；
S3：Melting, is controlled using pneumatic operated valve, makes 50% ethanol, diethyl carbonate, dimethyl terephthalate (DMT), accelerating agent, anti-old
Agent and tackifying resin are added to intermediate bunker successively, then the obtained mixed materials of step S2 are added, and material is continuously sent
Enter and melted into screw extruder, melt is after metering pump accurate measurement, then is uniformly sent to each distribution duct, adds
Metering pump, ensures uniform feeding, molten mass is entered melting distribution duct；
S4：It is cooled and shaped, the melt melted in step S3 is each led into molding die and is cooled and shaped, in injection melt
Before, heat treatment is carried out to molding die first, makes the temperature of molding die between 300 DEG C -350 DEG C, then again will be molten
Body injects；
S5：The demoulding, shaped article is taken out.
In summary：A kind of high-performance thermoplastic molding production process of the present invention, changes traditional composition of raw materials, with polyamides
Amine, sodium chloride, 50% ethanol, diethyl carbonate, dimethyl terephthalate (DMT), accelerating agent, antioxidant, tackifying resin and inorganic silicon
Hydrochlorate is raw material, and the stringent proportion for controlling each component, improves the performance of material in itself, and stability is more preferable, injection melt it
Before, heat treatment is carried out to molding die first, makes the temperature of molding die between 300 DEG C -350 DEG C, then again by melt
Injection, molding effect are ensured that first-time qualification rate is high, and melt is after metering pump accurate measurement, then is uniformly sent to well
Each distribution duct, adds metering pump, ensures uniform feeding.
Finally it should be noted that：The foregoing is only a preferred embodiment of the present invention, is not intended to limit the invention,
Although the present invention is described in detail with reference to the foregoing embodiments, for those skilled in the art, it still may be used
To modify to the technical solution described in foregoing embodiments, or equivalent substitution is carried out to which part technical characteristic,
Within the spirit and principles of the invention, any modification, equivalent replacement, improvement and so on, should be included in the present invention's
Within protection domain.
Claims (4)
- A kind of 1. high-performance thermoplastic molding production process, it is characterised in that：Its raw material is as follows by weight：Polyamide 40-50 Part, 6-8 parts of sodium chloride, 50% 6-8 parts of ethanol, 10-14 parts of diethyl carbonate, 10-20 parts of dimethyl terephthalate (DMT), accelerating agent 8-10 parts of 2-4 parts, 5-7 parts of antioxidant, 3-4 parts of tackifying resin and inorganic silicate, also specifically include and step are produced by below：S1：The preparation of raw material, by polyamide, sodium chloride, 50% ethanol, diethyl carbonate, dimethyl terephthalate (DMT), accelerating agent, Antioxidant, tackifying resin and inorganic silicate weigh in proportion measure it is spare；S2：Pretreatment of raw material, polyamide, sodium chloride and inorganic silicate are placed in crusher and crushed, and the broken time exists It is then that material collection is spare between 0.4h-0.5h, then the material being collected into is placed in grinder, using grinder come pair Material is ground, and finally the material after grinding is added in screening machine, material is sieved using screening machine, then Material collection is spare；S3：Melting, is controlled using pneumatic operated valve, makes 50% ethanol, diethyl carbonate, dimethyl terephthalate (DMT), accelerating agent, anti-old Agent and tackifying resin are added to intermediate bunker successively, then the obtained mixed materials of step S2 are added, and material is continuously sent Enter and melted into screw extruder, molten mass is entered melting distribution duct；S4：It is cooled and shaped, the melt melted in step S3 is each led into molding die and is cooled and shaped；S5：The demoulding, shaped article is taken out.
- A kind of 2. high-performance thermoplastic molding production process according to claim 1, it is characterised in that：In the step S2 Using 60-80 mesh sieves, ensure that material particles are uniform.
- A kind of 3. high-performance thermoplastic molding production process according to claim 1, it is characterised in that：In the step S3 Melt is after metering pump accurate measurement, then is uniformly sent to each distribution duct, adds metering pump, ensures uniform feeding.
- A kind of 4. high-performance thermoplastic molding production process according to claim 1, it is characterised in that：The step S3 In, before melt is injected, heat treatment is carried out to molding die first, make the temperature of molding die 300 DEG C -350 DEG C it Between, then melt is injected again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711344147.2A CN107936545A (en) | 2017-12-15 | 2017-12-15 | A kind of high-performance thermoplastic molding production process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711344147.2A CN107936545A (en) | 2017-12-15 | 2017-12-15 | A kind of high-performance thermoplastic molding production process |
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| CN107936545A true CN107936545A (en) | 2018-04-20 |
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| CN201711344147.2A Pending CN107936545A (en) | 2017-12-15 | 2017-12-15 | A kind of high-performance thermoplastic molding production process |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4673722A (en) * | 1985-12-23 | 1987-06-16 | General Motors Corporation | High impact nylon/polyurea copolymer |
| CN1262394A (en) * | 1999-01-28 | 2000-08-09 | 淮安市楚州尼龙制品厂 | Blade wheel of slurry pump and its manufacture method |
| CN1607987A (en) * | 2001-11-19 | 2005-04-20 | 拉瓦勒大学 | Electric discharge machining electrode and method |
| CN101028157A (en) * | 2007-04-07 | 2007-09-05 | 刘智清 | Chair seat and its manufacture |
| CN101056761A (en) * | 2004-09-29 | 2007-10-17 | 提克纳有限公司 | Composite body made from polyacetal and thermoplastic vulcanised elastomer |
| CN102574520A (en) * | 2009-10-07 | 2012-07-11 | 克诺尔商用车制动系统有限公司 | Coupling head having a housing made from plastic as an injection molded part |
| CN102689397A (en) * | 2012-06-28 | 2012-09-26 | 金发科技股份有限公司 | Molding technology combining PA 66 with metal embedded pieces |
| CN102712127A (en) * | 2010-01-08 | 2012-10-03 | 大福(香港)有限公司 | Method of forming thermoplastic article |
| CN106497029A (en) * | 2016-12-08 | 2017-03-15 | 安徽睿知信信息科技有限公司 | A kind of new synthesis filter bag and its processing technique |
-
2017
- 2017-12-15 CN CN201711344147.2A patent/CN107936545A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4673722A (en) * | 1985-12-23 | 1987-06-16 | General Motors Corporation | High impact nylon/polyurea copolymer |
| CN1262394A (en) * | 1999-01-28 | 2000-08-09 | 淮安市楚州尼龙制品厂 | Blade wheel of slurry pump and its manufacture method |
| CN1607987A (en) * | 2001-11-19 | 2005-04-20 | 拉瓦勒大学 | Electric discharge machining electrode and method |
| CN101056761A (en) * | 2004-09-29 | 2007-10-17 | 提克纳有限公司 | Composite body made from polyacetal and thermoplastic vulcanised elastomer |
| CN101028157A (en) * | 2007-04-07 | 2007-09-05 | 刘智清 | Chair seat and its manufacture |
| CN102574520A (en) * | 2009-10-07 | 2012-07-11 | 克诺尔商用车制动系统有限公司 | Coupling head having a housing made from plastic as an injection molded part |
| CN102712127A (en) * | 2010-01-08 | 2012-10-03 | 大福(香港)有限公司 | Method of forming thermoplastic article |
| CN102689397A (en) * | 2012-06-28 | 2012-09-26 | 金发科技股份有限公司 | Molding technology combining PA 66 with metal embedded pieces |
| CN106497029A (en) * | 2016-12-08 | 2017-03-15 | 安徽睿知信信息科技有限公司 | A kind of new synthesis filter bag and its processing technique |
Non-Patent Citations (1)
| Title |
|---|
| 鄂大辛: "《成形工艺与模具设计》", 31 August 2007, 北京理工大学出版社 * |
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