CN106393560A - Steam-assisted specular no-mark injection molding process for front shell of large-size LED TV - Google Patents
Steam-assisted specular no-mark injection molding process for front shell of large-size LED TV Download PDFInfo
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- CN106393560A CN106393560A CN201611056718.8A CN201611056718A CN106393560A CN 106393560 A CN106393560 A CN 106393560A CN 201611056718 A CN201611056718 A CN 201611056718A CN 106393560 A CN106393560 A CN 106393560A
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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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0025—Preventing defects on the moulded article, e.g. weld lines, shrinkage marks
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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
- 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
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
- B29C45/2701—Details not specific to hot or cold runner channels
- B29C45/2708—Gates
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The present invention discloses a steam-assisted specular no-mark injection molding process for a front shell of a large-size LED TV. The process comprises the following steps: step (1), mold design; step (2), choice of a material; step (3), drying; step (4), mold preheating: correctly mounting the mold on an injection molding machine, preheating the mold before production mold clamping at a set preheating temperature within a range of 80-90 DEG C; step (5), mold clamping and rapid heating; step (6), speed-regulating and pressure regulating staged injection; step (7), rapid cooling; and step (8), mold opening for taking out the molded part. According to the present invention, by using the design of a multiple-feed subsurface gate with a hot runner and a cold runner, the problems of easy formation of sink marks and existing of internal stress due to slow remote flow of plastic melt, and the like are solved; meanwhile, corresponding travel time for the hot runner and the cold runner is added to the key portion of the product, thereby greatly improving the appearance quality of the product and increasing the molding yield, etc.; and the requirements of actual use are met.
Description
Technical field
The present invention relates to a kind of large scale LED television fore shell assist type steam high-surface gloss traceless injection molding process, belong to
Assist type steam high-light no-trace technical field of injection molding.
Background technology
With scientific and technical continuous development, the continuous improvement of people's living standard, the feature of television set is wanted
Ask and appearance requirement more and more higher, such as the surface smoothness of television cabin and elaboration.In order to improve the surface matter of injecting products
Amount, would generally adopt spraying coating process in existing technology.Spraying is most basic, the most extensively, employed in surface protection
Effectively means.Spraying ensure that television cabin surface has that anti-corrosion function, outward appearance are beautiful, and coating quality is directly connected to product
The competitiveness of product and market development.But while providing attractive in appearance, durable products, spraying coating process is because using a large amount of volatiles
The hazardous chemicals such as solvent, auxiliary agent, paint vehicle, environmental pollution is larger, these chemicals and be inflammable explosive article exist larger
Potential safety hazard, simultaneously these chemicals easily occupation disease is brought to operator, such as acute and chronic benzolism.
At present, high-light no-trace Shooting Technique becomes the new focus of people, and high-surface gloss traceless injection molding is mainly in plastics
In injection moulding process, mould is quickly cooled down, quickly heating realizing, the heating of this injection forming mold and cooling are
By arranging what hot cold medium passage was carried out in a mold；Small size front shell of television for the past can reach its outward appearance
Prescription and performance requirement, but the front shell of television product for some large scales LED, general high-light no-trace is molded
Technique is more difficult to obtain satisfied mass effect.Its reason is, the heating of mould and cooling are by the type of whole mould by water channel
Chamber and the quick heating of core and cooling, for large scale LED front shell of television product, plastics punch die distance in a mold is relatively
Long, the speed of cooling and solidifying is simultaneously non-uniform, and heavy wall has speed at muscle slow, and soon, each point of plastic is in die cavity for wall thin place speed
In heating and the inhomogeneities of cooling plastic member product can be caused to produce internal stress and have a strong impact on product appearance quality
Problem.Simultaneously as large scale LED front shell of television product, filling plastic, apart from larger, easily occurs shrink mark existing at remote cast gate
As.These all can cause production efficiency to decline, and molding qualification rate is low, and process costs are high, and impact market delivery time etc. is no
Good consequence.For this reason, it may be necessary to design a kind of new injection molding process, comprehensive the deficiencies in the prior art can be overcome.
Content of the invention
The present invention exactly in view of the shortcomings of the prior art, provides a kind of large scale LED television fore shell assist type to steam
Vapour high-surface gloss traceless injection molding process, using hot flow path and the design of cold runner multiple feed sub-marine gate, solves plastics and melts
The flowing of body far-end is slowly also easy to produce shrink mark and haves such problems as internal stress, increases corresponding hot flow path in the crucial portion of product simultaneously
With the journey time of cold runner, and then greatly improve product appearance quality, molding qualification rate etc., meet actual operation requirements.
For solving the above problems, the technical solution used in the present invention is as follows：
Large scale LED television fore shell assist type steam high-surface gloss traceless injection molding process, specifically includes following steps：
Step（1）, Design of Dies：Shape and structure according to needed for LED television fore shell adopts click-through more than hot flow path and cold runner
Material sub-marine gate design, described mould includes the irregular water channel after optimization, die cavity and air blowing road；
Step（2）, sorting：From PMMA or PC/ABS or high-light ABS material as injection material；
Step（3）, dry：By injected plastics material be placed in injection machine drying baker with 60-80 DEG C dry 4.5-5.5 hour so as to
Humidity be less than 0.04%, after take automatical feeding system continuous feeding；
Step（4）, mould preheating：Mould is correctly installed on injection machine, before producing matched moulds, mould is preheated, preheating
Temperature setting is 80-90 DEG C；
Step（5）, matched moulds, quick heat：During matched moulds, high-temperature hot air is passed through the irregular water channel after mould optimization, by mould
The temperature moment of tool rises to 110-120 DEG C, and the temperature of described high-temperature hot air is 160-180 DEG C, described high-temperature hot air
Pressure is 0.2-0.3Mpa；
Step（6）, speed and pressure-regulating injects stage by stage：After the completion of matched moulds, using injector, mould is injected, during injection, will
Injection pressure is divided into the control of the injection pressure of 3 times, i.e. the 75%-85% of highest injection pressure, highest injection pressure and highest note
The 50%-60% of injection pressure；The injection stroke of injection screw is divided into 3 stages, in injection process, mold temperature maintain 110 DEG C-
140 DEG C, after the completion of injection process, mould is carried out pressurize, dwell pressure be plastics filling die cavity when maximum pressure 50%-
60%；
Step（7）, quick cool down：Using 4 DEG C -10 DEG C that cooling system is controlled of cold air stream, excellent toward mould with compression pump
Injection cold air stream in irregular water channel after change, cooling complete backward mould optimization after irregular water channel in be blown into temperature and be
25 DEG C -30 DEG C of air, the cold air stream in the irregular water channel after mould optimization is taken out of mould, follows in order to next injection
Ring is normally carried out；
Step（8）, die sinking pickup：After die sinking, automatically mould air blowing road is carried out clear up miscellaneous with the air pressure of 0.2-0.4Mpa
Matter and dried.
As the improvement of technique scheme, the irregular water channel after described optimization is：According to LED television fore shell in note
The shape and structure of the uneven in temperature even and LED television fore shell during molded changes to design shape, the width of water channel
And the density of arrangement, and larger according to LED television fore shell products thickness or larger or structural mutation local change
Water channel cross sectional shape or the quantity widened water channel or increase water channel.
As the improvement of technique scheme, the injection stroke of described injection screw is divided into 3 stages to be：Just open in plastic cement
When beginning by cast gate, injection speed is the 80%-90% of highest injection speed, adopts 100% high speed injection in mold filling process,
At the end of mold filling, injection speed is reduced to the 70%-80% of highest injection speed.
As the improvement of technique scheme, step（7）Described cooling system includes temperature-compensating room, described temperature-compensating
Interior is provided with the air stream outlet being connected with described compression pump, described temperature-compensating room is provided with air inlet, described temperature
Compensate interior to be provided with sensing cooling medium, Cycle Unit and fiber tube is dried.
Compared with prior art, the implementation result of the present invention is as follows for the present invention：
Large scale LED television fore shell assist type steam high-surface gloss traceless injection molding process of the present invention, mould is using warm
Runner and the design of cold runner multiple feed sub-marine gate, solve the flowing of plastic melt far-end and are slowly also easy to produce shrink mark and presence
The problems such as internal stress, simultaneously in the crucial portion corresponding hot flow path of increase of product and the journey time of cold runner, eliminate product
Injection and the internal stress of molding minute internal presence, and then greatly improve product appearance quality, molding qualification rate, reduce work
Skill cost etc., meets actual operation requirements.
Additionally, the present invention need not be follow-up the operation such as spraying, considerably reduce the pollution to environment, reach environmental protection and section
Requirement about.
Brief description
Fig. 1 is large scale LED television fore shell assist type steam high-surface gloss traceless injection molding process stream of the present invention
Journey schematic diagram；
Fig. 2 is cooling system structure schematic diagram of the present invention.
Specific embodiment
Present disclosure to be described below in conjunction with specific embodiments.
Specific embodiment 1
As shown in Figure 1-2, it is large scale LED television fore shell assist type steam high-surface gloss traceless injection molding described in the present embodiment
Technique, specifically includes following steps：
Step（1）, Design of Dies：Shape and structure according to needed for LED television fore shell adopts click-through more than hot flow path and cold runner
Material sub-marine gate design, described mould includes the irregular water channel after optimization, die cavity and air blowing road；
Step（2）, sorting：From PMMA or PC/ABS or high-light ABS material as injection material；
Step（3）, dry：Injected plastics material is placed in injection machine drying baker and dries 4.5 hours so as to humidity is less than with 60 DEG C
0.04%, after take automatical feeding system continuous feeding；
Step（4）, mould preheating：Mould is correctly installed on injection machine, before producing matched moulds, mould is preheated, preheating
Temperature setting is 80 DEG C；
Step（5）, matched moulds, quick heat：During matched moulds, high-temperature hot air is passed through the irregular water channel after mould optimization, by mould
The temperature moment of tool rises to 110 DEG C, and the temperature of described high-temperature hot air is 160 DEG C, and the pressure of described high-temperature hot air is
0.2Mpa；
Step（6）, speed and pressure-regulating injects stage by stage：After the completion of matched moulds, using injector, mould is injected, during injection, will
Injection pressure is divided into the control of the injection pressure of 3 times, that is, highest injection pressure 75%, highest injection pressure and highest injection pressure
The 50% of power；The injection stroke of injection screw is divided into 3 stages, and in injection process, mold temperature maintains 110 DEG C, injection process
After the completion of, mould is carried out with pressurize, dwell pressure is 50% of maximum pressure during plastics filling die cavity；
Step（7）, quick cool down：Using 4 DEG C that cooling system is controlled of cold air stream, with compression pump 20 toward after mould optimization
Irregular water channel in injection cold air stream, cooling completes to be blown into temperature in the irregular water channel after backward mould optimization and is 25 DEG C
Air, the cold air stream in the irregular water channel after mould optimization is taken out of mould, normally enters in order to next injection cycle
OK；
Step（8）, die sinking pickup：After die sinking, automatically with the air pressure of 0.2Mpa mould air blowing road is carried out clear up impurity and
Dried.
Further with improvement, the irregular water channel after described optimization is：According to LED television fore shell in injection molding process
In the shape and structure of uneven in temperature even and LED television fore shell change the close of shape, width and arrangement to design water channel
Degree, and larger according to LED television fore shell products thickness or larger or structural mutation local change water channel section shape
Shape or the quantity widened water channel or increase water channel.
Further with improvement, the injection stroke of described injection screw is divided into 3 stages to be：Just begin through cast gate in plastic cement
When, injection speed is the 80% of highest injection speed, adopts 100% high speed injection, at the end of mold filling, note in mold filling process
Firing rate degree is reduced to the 70% of highest injection speed.
Specifically, step（7）Described cooling system includes temperature-compensating room 10, being provided with and compression pump in temperature-compensating room 10
The air stream outlet 30 that 20 are connected, temperature-compensating room 10 is provided with air inlet 40, is provided with sensing cold in temperature-compensating room 10
But medium 11, Cycle Unit 12 and fiber tube 13 is dried.
Moulding process of the present invention, mould adopts hot flow path and the design of cold runner multiple feed sub-marine gate, solves
The flowing of plastic melt far-end is slowly also easy to produce shrink mark and haves such problems as internal stress, and then greatly improves product appearance matter
Amount, molding qualification rate, reduce process costs etc., meet actual operation requirements.
Additionally, the present invention need not be follow-up the operation such as spraying, considerably reduce the pollution to environment, reach environmental protection and section
Requirement about.
Specific embodiment 2
As shown in Figure 1-2, it is large scale LED television fore shell assist type steam high-surface gloss traceless injection molding described in the present embodiment
Technique, specifically includes following steps：
Step（1）, Design of Dies：Shape and structure according to needed for LED television fore shell adopts click-through more than hot flow path and cold runner
Material sub-marine gate design, described mould includes the irregular water channel after optimization, die cavity and air blowing road；
Step（2）, sorting：From PMMA or PC/ABS or high-light ABS material as injection material；
Step（3）, dry：Injected plastics material is placed in injection machine drying baker and dries 5 hours so as to humidity is less than with 70 DEG C
0.04%, after take automatical feeding system continuous feeding；
Step（4）, mould preheating：Mould is correctly installed on injection machine, before producing matched moulds, mould is preheated, preheating
Temperature setting is 85 DEG C；
Step（5）, matched moulds, quick heat：During matched moulds, high-temperature hot air is passed through the irregular water channel after mould optimization, by mould
The temperature moment of tool rises to 115 DEG C, and the temperature of described high-temperature hot air is 170 DEG C, and the pressure of described high-temperature hot air is
0.25Mpa；
Step（6）, speed and pressure-regulating injects stage by stage：After the completion of matched moulds, using injector, mould is injected, during injection, will
Injection pressure is divided into the control of the injection pressure of 3 times, that is, highest injection pressure 80%, highest injection pressure and highest injection pressure
The 55% of power；The injection stroke of injection screw is divided into 3 stages, and in injection process, mold temperature maintains 125 DEG C, injection process
After the completion of, mould is carried out with pressurize, dwell pressure is 55% of maximum pressure during plastics filling die cavity；
Step（7）, quick cool down：Using 7 DEG C that cooling system is controlled of cold air stream, with compression pump 20 toward after mould optimization
Irregular water channel in injection cold air stream, it is 27.5 that cooling completes to be blown into temperature in the irregular water channel after backward mould optimization
DEG C air, the cold air stream in the irregular water channel after mould optimization is taken out of mould, normal in order to next injection cycle
Carry out；
Step（8）, die sinking pickup：After die sinking, automatically with the air pressure of 0.3Mpa mould air blowing road is carried out clear up impurity and
Dried.
Further with improvement, the irregular water channel after described optimization is：According to LED television fore shell in injection molding process
In the shape and structure of uneven in temperature even and LED television fore shell change the close of shape, width and arrangement to design water channel
Degree, and larger according to LED television fore shell products thickness or larger or structural mutation local change water channel section shape
Shape or the quantity widened water channel or increase water channel.
Further with improvement, the injection stroke of described injection screw is divided into 3 stages to be：Just begin through cast gate in plastic cement
When, injection speed is the 85% of highest injection speed, adopts 100% high speed injection, at the end of mold filling, note in mold filling process
Firing rate degree is reduced to the 75% of highest injection speed.
Specifically, step（7）Described cooling system includes temperature-compensating room 10, being provided with and compression pump in temperature-compensating room 10
The air stream outlet 30 that 20 are connected, temperature-compensating room 10 is provided with air inlet 40, is provided with sensing cold in temperature-compensating room 10
But medium 11, Cycle Unit 12 and fiber tube 13 is dried.
Moulding process of the present invention, mould adopts hot flow path and the design of cold runner multiple feed sub-marine gate, solution
Plastic melt far-end of having determined flowing is slowly also easy to produce shrink mark and haves such problems as internal stress, increases phase in the crucial portion of product simultaneously
The hot flow path answered and the journey time of cold runner, eliminate the internal stress that product injection and molding minute internal exist, Jin Erji
Improve greatly product appearance quality, molding qualification rate, reduce process costs etc., meet actual operation requirements.
Additionally, the present invention need not be follow-up the operation such as spraying, considerably reduce the pollution to environment, reach environmental protection and section
Requirement about.
Specific embodiment 3
As shown in Figure 1-2, it is large scale LED television fore shell assist type steam high-surface gloss traceless injection molding described in the present embodiment
Technique, specifically includes following steps：
Step（1）, Design of Dies：Shape and structure according to needed for LED television fore shell adopts click-through more than hot flow path and cold runner
Material sub-marine gate design, described mould includes the irregular water channel after optimization, die cavity and air blowing road；
Step（2）, sorting：From PMMA or PC/ABS or high-light ABS material as injection material；
Step（3）, dry：Injected plastics material is placed in injection machine drying baker and dries 5.5 hours so as to humidity is less than with 80 DEG C
0.04%, after take automatical feeding system continuous feeding；
Step（4）, mould preheating：Mould is correctly installed on injection machine, before producing matched moulds, mould is preheated, preheating
Temperature setting is 90 DEG C；
Step（5）, matched moulds, quick heat：During matched moulds, high-temperature hot air is passed through the irregular water channel after mould optimization, by mould
The temperature moment of tool rises to 120 DEG C, and the temperature of described high-temperature hot air is 180 DEG C, and the pressure of described high-temperature hot air is
0.3Mpa；
Step（6）, speed and pressure-regulating injects stage by stage：After the completion of matched moulds, using injector, mould is injected, during injection, will
Injection pressure is divided into the control of the injection pressure of 3 times, that is, highest injection pressure 85%, highest injection pressure and highest injection pressure
The 60% of power；The injection stroke of injection screw is divided into 3 stages, and in injection process, mold temperature maintains 140 DEG C, injection process
After the completion of, mould is carried out with pressurize, dwell pressure is 60% of maximum pressure during plastics filling die cavity；
Step（7）, quick cool down：Using 10 DEG C that cooling system is controlled of cold air stream, with compression pump 20 toward mould optimization
Injection cold air stream in irregular water channel afterwards, cooling down and being blown into temperature in the irregular water channel after completing backward mould optimization is 30
DEG C air, the cold air stream in the irregular water channel after mould optimization is taken out of mould, normal in order to next injection cycle
Carry out；
Step（8）, die sinking pickup：After die sinking, automatically with the air pressure of 0.4Mpa mould air blowing road is carried out clear up impurity and
Dried.
Further with improvement, the irregular water channel after described optimization is：According to LED television fore shell in injection molding process
In the shape and structure of uneven in temperature even and LED television fore shell change the close of shape, width and arrangement to design water channel
Degree, and larger according to LED television fore shell products thickness or larger or structural mutation local change water channel section shape
Shape or the quantity widened water channel or increase water channel.
Further with improvement, the injection stroke of described injection screw is divided into 3 stages to be：Just begin through cast gate in plastic cement
When, injection speed is the 90% of highest injection speed, adopts 100% high speed injection, at the end of mold filling, note in mold filling process
Firing rate degree is reduced to the 80% of highest injection speed.
Specifically, step（7）Described cooling system includes temperature-compensating room 10, being provided with and compression pump in temperature-compensating room 10
The air stream outlet 30 that 20 are connected, temperature-compensating room 10 is provided with air inlet 40, is provided with sensing cold in temperature-compensating room 10
But medium 11, Cycle Unit 12 and fiber tube 13 is dried.
Moulding process of the present invention, mould adopts hot flow path and the design of cold runner multiple feed sub-marine gate, solution
Plastic melt far-end of having determined flowing is slowly also easy to produce shrink mark and haves such problems as internal stress, and then greatly improves product appearance matter
Amount, molding qualification rate, reduce process costs etc., meet actual operation requirements.
Additionally, the present invention need not be follow-up the operation such as spraying, considerably reduce the pollution to environment, reach environmental protection and section
Requirement about.
Note：Value shell in span for the parameter in moulding process of the present invention can reach according to actually required
The fineness of product is setting.
Above content is made for the present invention in conjunction with specific embodiments detailed description in detail it is impossible to assert that the present invention is specifically real
Apply and be only limitted to these explanations.For those skilled in the art, before without departing from present inventive concept
Put, some simple deduction or replace can also be made, all should be considered as belonging to the scope of protection of the invention.
Claims (4)
1. large scale LED television fore shell assist type steam high-surface gloss traceless injection molding process it is characterised in that：Specifically include with
Lower step：
Step（1）, Design of Dies：Shape and structure according to needed for LED television fore shell adopts click-through more than hot flow path and cold runner
Material sub-marine gate design, described mould includes the irregular water channel after optimization, die cavity and air blowing road；
Step（2）, sorting：From PMMA or PC/ABS or high-light ABS material as injection material；
Step（3）, dry：By injected plastics material be placed in injection machine drying baker with 60-80 DEG C dry 4.5-5.5 hour so as to
Humidity be less than 0.04%, after take automatical feeding system continuous feeding；
Step（4）, mould preheating：Mould is correctly installed on injection machine, before producing matched moulds, mould is preheated, preheating
Temperature setting is 80-90 DEG C；
Step（5）, matched moulds, quick heat：During matched moulds, high-temperature hot air is passed through the irregular water channel after mould optimization, by mould
The temperature moment of tool rises to 110-120 DEG C, and the temperature of described high-temperature hot air is 160-180 DEG C, described high-temperature hot air
Pressure is 0.2-0.3Mpa；
Step（6）, speed and pressure-regulating injects stage by stage：After the completion of matched moulds, using injector, mould is injected, during injection, will
Injection pressure is divided into the control of the injection pressure of 3 times, i.e. the 75%-85% of highest injection pressure, highest injection pressure and highest note
The 50%-60% of injection pressure；The injection stroke of injection screw is divided into 3 stages, in injection process, mold temperature maintain 110 DEG C-
140 DEG C, after the completion of injection process, mould is carried out pressurize, dwell pressure be plastics filling die cavity when maximum pressure 50%-
60%；
Step（7）, quick cool down：Using 4 DEG C -10 DEG C that cooling system is controlled of cold air stream, use compression pump（）Toward mould
Injection cold air stream in irregular water channel after optimization, cools down in the irregular water channel after completing backward mould optimization and is blown into temperature
For 25 DEG C -30 DEG C of air, the cold air stream in the irregular water channel after mould optimization is taken out of mould, in order to next injection
Circulation is normally carried out；
Step（8）, die sinking pickup：After die sinking, automatically mould air blowing road is carried out clear up miscellaneous with the air pressure of 0.2-0.4Mpa
Matter and dried.
2. large scale LED television fore shell assist type steam high-surface gloss traceless injection molding process according to claim 1, it is special
Levy and be：Described optimize after irregular water channel be：Uneven in temperature even in injection molding process according to LED television fore shell
And the shape and structure of LED television fore shell changes to design the density of shape, width and the arrangement of water channel, and according to LED
Front shell of television products thickness is larger or larger or structural mutation local change water channel cross sectional shape or widen water channel or
Increase the quantity of water channel.
3. large scale LED television fore shell assist type steam high-surface gloss traceless injection molding process according to claim 1, it is special
Levy and be：The injection stroke of described injection screw is divided into 3 stages to be：When plastic cement just begins through cast gate, injection speed is
The 80%-90% of highest injection speed, adopts 100% high speed injection in mold filling process, and at the end of mold filling, injection speed drops
The low 70%-80% for highest injection speed.
4. large scale LED television fore shell assist type steam high-surface gloss traceless injection molding process according to claim 1, it is special
Levy and be：Step（7）Described cooling system includes temperature-compensating room（10）, described temperature-compensating room（10）Inside be provided with described
Compression pump（20）The air stream outlet being connected（30）, described temperature-compensating room（10）On be provided with air inlet（40）, described temperature
Compensated chamber（10）Inside it is provided with sensing cooling medium（11）, Cycle Unit（12）And fiber tube is dried（13）.
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| CN201611056718.8A CN106393560A (en) | 2016-11-26 | 2016-11-26 | Steam-assisted specular no-mark injection molding process for front shell of large-size LED TV |
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| CN201611056718.8A CN106393560A (en) | 2016-11-26 | 2016-11-26 | Steam-assisted specular no-mark injection molding process for front shell of large-size LED TV |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109676885A (en) * | 2018-12-27 | 2019-04-26 | Tcl王牌电器(惠州)有限公司 | The manufacturing method of plastic cement front housing, LCD TV and plastic cement front housing |
| CN116238090A (en) * | 2022-12-29 | 2023-06-09 | 太仓市天丝利塑化有限公司 | High-gloss traceless forming process for active air inlet grille of automobile |
| WO2024197702A1 (en) * | 2023-03-24 | 2024-10-03 | 西诺控股集团有限公司 | Integrated injection molding method |
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| CN202993656U (en) * | 2012-11-20 | 2013-06-12 | 郑州长城科工贸有限公司 | Low-temperature cooling liquid circulation device capable of achieving temperature compensation |
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| CN109676885A (en) * | 2018-12-27 | 2019-04-26 | Tcl王牌电器(惠州)有限公司 | The manufacturing method of plastic cement front housing, LCD TV and plastic cement front housing |
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