CN105924881B - Casing manufacturing method and rear shell after modified ABS material manufacturing method, curved surface - Google Patents
Casing manufacturing method and rear shell after modified ABS material manufacturing method, curved surface Download PDFInfo
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- CN105924881B CN105924881B CN201610296692.8A CN201610296692A CN105924881B CN 105924881 B CN105924881 B CN 105924881B CN 201610296692 A CN201610296692 A CN 201610296692A CN 105924881 B CN105924881 B CN 105924881B
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- 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
- C08K3/34—Silicon-containing compounds
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- 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
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/02—Organic and inorganic ingredients
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- 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
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
-
- 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
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/10—Esters; Ether-esters
- C08K5/101—Esters; Ether-esters of monocarboxylic acids
-
- 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
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/20—Carboxylic acid amides
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L55/00—Compositions of homopolymers or copolymers, obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in groups C08L23/00 - C08L53/00
- C08L55/02—ABS [Acrylonitrile-Butadiene-Styrene] polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L91/00—Compositions of oils, fats or waxes; Compositions of derivatives thereof
- C08L91/06—Waxes
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J155/00—Adhesives based on homopolymers or copolymers, obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in groups C09J123/00 - C09J153/00
- C09J155/02—ABS [Acrylonitrile-Butadiene-Styrene] polymers
Abstract
The present invention discloses a kind of manufacturing method of modified ABS material, casing manufacturing method and display terminal curved surface rear shell after display terminal curved surface, the manufacturing method of modified ABS material includes: by general ABS material, talcum powder, lubricant and antioxidant are added in plastic extruder, wherein lubricant includes silicon magnesium compounded lubricant and stearic acid lubricant, antioxidant includes phosphorus phenols composite antioxidant, the weight percent of general ABS material is 96%~98%, the weight percent of talcum powder is 1%~2%, the weight percent of silicon magnesium compounded lubricant is 0.5%~2%, the weight percent of stearic acid lubricant is 0.2%~1%, the weight percent of phosphorus phenols composite antioxidant is 0.3%~1%；The temperature of plastic extruder is adjusted to 180~230 degrees Celsius, squeezes out modified ABS material.The present invention improves the heat resistance and intensity of modified ABS material, reduces the dimensional contraction rate of modified ABS material.
Description
Technical field
The present invention relates to technical field of composite materials more particularly to a kind of manufacturing methods of modified ABS material, display terminal
Casing manufacturing method and display terminal curved surface rear shell after curved surface.
Background technique
With the development of science and technology, the product form of LCD TV is also constantly changing, the small-size product shape since most
State, gradually to ultra-narrow frame, complete machine thickness ultrathin, screen size super large product form trend development, also, LCD TV by
Gradually develop from plane scope to curved surface scope.The reason of curved surface TV is because of product form, it is more demanding to backskin material, when fire-retardant
Generally use PC (Polycarbonate, polycarbonate)+ABS (Acrylonitrile-Butadiene-Styrene, propylene
Nitrile-butadiene-styrene plastics) synthetic material, but it is non-flame resistant when generally use modified ABS material, cost is relatively lower.
ABS material application range is wider, for example, household electrical appliances, number, communication, automobile and other industries outer structural parts apply compared with
It is more.But because curved surface TV rear shell is compared with flat-surface television rear shell, the shrinking law of injection molding and rear shell mold is
Difference causes originally to apply the general ABS material of flat-surface television rear shell application effect in curved surface TV rear shell bad, causes electricity
Depending on the product size defect less than normal of rear shell, it is not able to satisfy product size and matching requirements.
Summary of the invention
The main purpose of the present invention is to provide a kind of manufacturing methods of modified ABS material, display terminal curved surface rear shell system
Make method and display terminal curved surface rear shell, it is intended to solve TV rear shell using the product of TV rear shell caused by general ABS material
Size defect less than normal.
To achieve the above object, the manufacturing method of a kind of modified ABS material provided by the invention, the modified ABS material
Manufacturing method include:
General ABS material, talcum powder, lubricant and antioxidant are added in plastic extruder, wherein the lubricant
Including silicon magnesium compounded lubricant and stearic acid lubricant, the antioxidant includes phosphorus phenols composite antioxidant, the general ABS
The weight percent of material is 96%~98%, and the weight percent of the talcum powder is 1%~2%, the compound profit of silicon magnesium
The weight percent of lubrication prescription is 0.5%~2%, and the weight percent of the stearic acid lubricant is 0.2%~1%, described
The weight percent of phosphorus phenols composite antioxidant is 0.3%~1%；
The temperature of plastic extruder is adjusted to 180~230 degrees Celsius, squeezes out modified ABS material.
Preferably, it is described adjust plastic extruder temperature to 180~230 degrees Celsius, squeeze out modified ABS material the step of
Later, further includes:
The modified ABS material of extrusion is granulated.
Preferably, the plastic extruder is double screw extruder.
The present invention also provides casing manufacturing method after a kind of display terminal curved surface, casing manufacturing method is sharp after the display terminal curved surface
Modified ABS material made of manufacturing method with above-mentioned modified ABS material, casing manufacturing method packet after the display terminal curved surface
It includes:
The modified ABS material is added in injection molding machine, the hot-fluid channel temp in injection molding machine is adjusted and is taken the photograph for 220~230
Family name's degree, modified ABS material is melted；
The hot melt adhesive being made of the modified ABS material after melting is injected into curved surface rear shell mold cavity by injection hole
In；
Pressure maintaining and cooling are carried out to the hot melt adhesive in curved surface rear shell mold cavity, display terminal curved surface rear shell is made.
Preferably, the temperature of the gun barrel of injection molding machine is set in 190~230 degrees Celsius.
Preferably, it is described the hot melt adhesive being made of the modified ABS material after melting is injected into curved surface by injection hole after
Step in shell mold cavity includes:
It is controlled using being delayed into glue, the injection hole for opening injection molding machine designated position is injected into the type chamber of curved surface rear shell mold
The hot melt adhesive being made of the modified ABS material after melting；
Each injection hole is opened one by one at a distance from each injection hole according to hot melt adhesive in curved surface rear shell mold cavity.
The present invention also provides a kind of display terminal curved surface rear shell, the display terminal curved surface rear shell is whole by above-mentioned display
Casing manufacturing method is made after end curved surface.
Preferably, the display terminal curved surface rear shell is curved surface TV rear shell.
This hair is carried out by adding talcum powder, lubricant and antioxidant in general ABS material, and by plastic extruder
It is sufficiently mixed and is homogenized, be able to produce and produce modified ABS material, improve the heat resistance and intensity of modified ABS material, simultaneously
Dimensional contraction rate of the modified ABS material in injection molding is reduced, thus after display terminal curved surface is made in modified ABS material
When shell, curved surface rear shell is avoided the product size situation less than normal of curved surface rear shell occur because ABS material dimensional contraction rate is big, thus
It overcomes general ABS material and curved surface rear shell product size problem less than normal is made, meet the product of curved surface rear shell and display terminal
Size requires and matching requirements.
Detailed description of the invention
Fig. 1 is the flow diagram of one embodiment of manufacturing method of modified ABS material of the present invention；
Fig. 2 is the flow diagram of one preferred embodiment of manufacturing method of modified ABS material of the present invention；
Fig. 3 is that the invention shows the flow diagrams of one embodiment of casing manufacturing method after terminal surface；
Fig. 4 is that the invention shows will be by the modified ABS after melting in one preferred embodiment of casing manufacturing method after terminal surface
The hot melt adhesive of material composition is injected into the refinement flow diagram in curved surface rear shell mold cavity by injection hole.
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
The present invention provides a kind of manufacturing method of modified ABS material, in one embodiment of manufacturing method of modified ABS material
In, referring to Fig.1, the manufacturing method of the modified ABS material includes:
General ABS material, talcum powder, lubricant and antioxidant are added in plastic extruder by step S10, wherein moistening
Lubrication prescription includes silicon magnesium compounded lubricant and stearic acid lubricant, and antioxidant includes phosphorus phenols composite antioxidant, general ABS material
Weight percent be 96%~98%, the weight percent of talcum powder is 1%~2%, the weight hundred of silicon magnesium compounded lubricant
Divide than being 0.5%~2%, the weight percent of stearic acid lubricant is 0.2%~1%, the weight of phosphorus phenols composite antioxidant
Measuring percentage is 0.3%~1%；
General ABS material is synthesized by three kinds of acrylonitrile, butadiene and styrene chemical monomers, and every kind of monomer all has not
Same characteristic；Acrylonitrile has high-intensitive, thermal stability and chemical stability；Butadiene has toughness, impact property；Styrene
With easy processing, best bright finish and high intensity.From the perspective of morphology, general ABS is non-crystalline material；The polymerization of three kinds of monomers produces
Given birth to the terpolymer with two-phase, one be styrene-acrylonitrile continuous phase, the other is polybutadiene rubber disperses
Phase；General ABS material workability with super strength, appearance characteristics, low creep properties and excellent dimensional stability and very high
Impact strength.
Lubricant includes stearic acid, butyl stearate, oleamide, ethylene bis stearamide, paraffin series lubricant agent, low molecule
Polymer etc., preferred silicon magnesium compounded lubricant and stearic acid lubricant in the present embodiment.Antioxidant includes aromatic amine antioxygen
Agent, Hinered phenols antioxidant, auxiliary antioxidant etc., antioxidant is phosphorus phenols composite antioxidant in the present embodiment.
Wherein, the weight percent of general ABS material is 96%~98%, the weight percent of talcum powder is 1%~
2%, the weight percent of silicon magnesium compounded lubricant is 0.5%~2%, and the weight percent of stearic acid lubricant is 0.2%
~1%, the weight percent of phosphorus phenols composite antioxidant is 0.3%~1%；Weight percent is that a kind of substance weight accounts for synthesis
The percentage of modified ABS material total weight.
Step S20 adjusts the temperature of plastic extruder to 180~230 degrees Celsius, squeezes out modified ABS material.
The temperature of plastic extruder is adjusted to 180~230 degrees Celsius, and general ABS material, talcum powder, silicon magnesium is compound
The material of lubricant, stearic acid lubricant and phosphorus phenols composite antioxidant sufficiently merges.Plastic extruder is in the present embodiment
Double-screw plastic extrusion machine, material are mixed and are homogenized between two screw rods；It is of course also possible to use single screw rod plastic extrusion
Machine.
In the present embodiment, by adding talcum powder, lubricant and antioxidant in general ABS material, wherein lubricant
Including silicon magnesium compounded lubricant and stearic acid lubricant, antioxidant includes phosphorus phenols composite antioxidant, the weight of general ABS material
Measuring percentage is 96%~98%, and the weight percent of talcum powder is 1%~2%, the weight percent of silicon magnesium compounded lubricant
It is 0.5%~2%, the weight percent of stearic acid lubricant is 0.2%~1%, the weight hundred of phosphorus phenols composite antioxidant
Divide than being 0.3%~1%, and be sufficiently mixed and be homogenized by plastic extruder, is able to produce and produces modified ABS material
Material, improves the heat resistance and intensity of modified ABS material, while reducing size of the modified ABS material in injection molding and receiving
Shrinkage, to avoid curved surface rear shell because of ABS material dimensional contraction rate when display terminal curved surface rear shell is made in modified ABS material
Product size that is big and that curved surface rear shell occur situation less than normal, so that overcoming general ABS material is made shell product ruler after curved surface
Very little problem less than normal meets the product size requirement and matching requirements of curved surface rear shell and display terminal.
Preferably, it after step S20, is also wrapped in one preferred embodiment of manufacturing method of modified ABS material referring to Fig. 2
It includes:
The modified ABS material of extrusion is granulated by step S30.
After producing modified ABS material, the modified ABS material of extrusion is granulated by pelletizer；By making
Grain can avoid the phenomenon that influences such as agglomeration, bridge formation, the pulsation that powder product easily occurs use, while avoid use process powder
Expect bring secondary pollution, the physical property of product is made to be greatly improved；Under normal circumstances, the bulk specific weight of granulation product is all
It is greatly improved, therefore transport, storage, packaging space can be saved.
The present invention is tested the performance indicator of modified ABS material, and test result is as shown in table 1.
Table 1
| Project | Testing standard | Unit | Numerical value |
| Melt flow index | GB/T-3682 | g/10min | 28 |
| Elongation | GB/T-1040.1 | % | 32 |
| Notch impact strength | GB/T-1843 | KJ/m^2 | 15 |
| Tensile strength | GB/T-1040.1 | Mpa | 40 |
| Bending strength | GB/T-9341 | MPa | 65 |
| Bending modulus | GB/T-9341 | MPa | 2264 |
Modified ABS material of the invention may be utilized in fabricating the curved surface rear shell of display terminal, pass through a kind of display terminal curved surface
Above-mentioned modified ABS material is supported display terminal curved surface rear shell, the especially curved surface of curved surface LCD TV by casing manufacturing method afterwards
Rear shell.
The present invention provides casing manufacturing method after a kind of display terminal curved surface, and casing manufacturing method utilizes above-mentioned reality after the curved surface
The modified ABS material in example is applied, referring to Fig. 3, casing manufacturing method includes: after the display terminal curved surface
Step S41, modified ABS material is added in injection molding machine, adjust injection molding machine in hot-fluid channel temp be 220~
230 degrees Celsius, modified ABS material is melted；
The hot melt adhesive being made of the modified ABS material after melting is injected into shell mold after curved surface by injection hole by step S42
In tool type chamber；
Modified ABS material in above-described embodiment is added in injection molding machine, the hot-fluid channel temp in injection molding machine be 220~
230 degrees Celsius, the modified ABS material in hot flow path is melted, then passes through the modified ABS material (i.e. hot melt adhesive) after fusing
The injection hole of injection molding machine is injected into curved surface rear shell mold cavity.
Preferably, the temperature of the gun barrel of injection molding machine is set in 190~230 degrees Celsius, is conducive to hot melt adhesive and infuses from injection hole
Enter into curved surface rear shell mold cavity, is also beneficial to hot melt adhesive and is formed in curved surface rear shell mold cavity.
Preferably, referring to Fig. 4, after display terminal curved surface in one preferred embodiment of casing manufacturing method, step S42 includes:
Step S421 is controlled using being delayed into glue, opens the injection hole of injection molding machine designated position to curved surface rear shell mold
The hot melt adhesive being made of the modified ABS material after melting is injected in type chamber；
Step S422 opens each note at a distance from each injection hole according to hot melt adhesive in curved surface rear shell mold cavity one by one
Mould mouth.
Hot melt adhesive is injected into curved surface rear shell mold cavity to control using being delayed into glue, first turns on injection molding machine designated position
Injection hole inject hot melt adhesive into curved surface rear shell mold cavity, then according to hot melt adhesive in curved surface rear shell mold cavity and each note
The distance for moulding mouth opens each injection hole one by one to inject hot melt adhesive into curved surface rear shell mold cavity, and control rule is when song
When distance of the hot melt adhesive having been injected into the rear shell mold cavity of face apart from gum-injecting port is less than pre-determined distance, then the gum-injecting port is opened；
The distance between the hot melt adhesive having been injected into curved surface rear shell mold cavity and gum-injecting port can detect by sensor or pass through experiment
Data calculate, to avoid the gentle line of weld mark occur in the formed in mould curved surface rear shell of curved surface rear shell.
Step S43 carries out pressure maintaining and cooling to the hot melt adhesive in curved surface rear shell mold cavity, after display terminal curved surface is made
Shell.
After the hot melt adhesive of modified ABS material is injected into curved surface rear shell mold cavity by injection molding machine, to shell mold after curved surface
Hot melt adhesive in tool type chamber carries out pressure maintaining and cooling process, when hot melt adhesive is cooled to more than 40 degrees Celsius or room temperature, takes out hot melt
Display terminal curved surface rear shell is made in gum forming body.
Using display terminal curved surface rear shell made of the modified ABS material in the embodiment of the present invention, have preferable heat-resisting
Property and intensity, and there is lesser dimensional contraction rate, curved surface rear shell avoided curved surface occur because ABS material dimensional contraction rate is big
The product size of rear shell situation less than normal, so that overcoming general ABS material is made curved surface rear shell product size problem less than normal,
Meet the product size requirement and matching requirements of curved surface rear shell and display terminal.
The present invention also provides a kind of display terminal curved surface rear shell, which is by showing in above-described embodiment
Casing manufacturing method is made after showing terminal surface, which is preferably the curved surface rear shell of curved surface LCD TV.
Sample, especially curved surface rear shell sample made of ABS material are improved using the present invention to be tested as follows, are tested
Journey is as follows:
(1) high temperature storage is tested:
1. sample is put into chamber, test the temperature inside the box is allowed to rise to 60 with the heating rate of 1 DEG C of ± 0.2 DEG C/min
DEG C, allow sample to store 96h in such circumstances.
2. Adjustment Tests the temperature inside the box allows test the temperature inside the box to be down to 25 DEG C with the cooling rate of 1 DEG C of ± 0.2 DEG C/min.
3. taking out sample, restore under ambient temperature and moisture for 24 hours, carries out inspection judgement by the method for inspection of storage test.
Pass the test.
(2) low temperature storage test:
1. sample is put into chamber, test the temperature inside the box is allowed to rise to -25 with the cooling rate of 1 DEG C of ± 0.2 DEG C/min
℃.Sample is allowed to store 96h in such circumstances.
2. Adjustment Tests the temperature inside the box allows test the temperature inside the box to rise to 25 DEG C with the heating rate of 1 DEG C of ± 0.2 DEG C/min.
3. taking out sample, restore 2h under ambient temperature and moisture, carries out inspection judgement by the method for inspection of storage test
Pass the test.
(3) random vibration+low temperature storage+low temperature falls combined test:
Random vibration:
Product is fixed on test table top with rope, is carried out by LCD TV mechanical test standard
Frequency from 5 to 200Hz, given by G rms by power density
Test level: development phase=3 value=0,57 little Shi &G
Test direction: tri- directions X, Y, Z, wherein Y-direction 2h, X, each 0.5h of Y-direction.
Low temperature storage:
Under the conditions of -25 DEG C, band packaging sample stores 48h.
Low temperature falls:
The secondary short side-that the most short side-that the lower left corner a-is connected with the lower left corner is connected with the lower left corner is connected most with the lower left corner
Long side-the left side-front-the right side-the right side-top surface-the back side-bottom surface-bottom surface
The secondary short side-that the most short side-that the lower right corner b-is connected with the lower right corner is connected with the lower right corner is connected most with the lower right corner
Long side-the right side-front-the left side-the left side-top surface-the back side-bottom surface-bottom surface
Note: fall at least has needed 2PCS sample every time, and 1PCS executes step a, and 1PCS executes step b；Falling height reference
Enterprise's mark.
After low temperature storage, after completing fall-down test in 10 points of kinds, places 2h and restore to check.
Composite test test passes.
(4) room temperature drop test:
Fallen by the method for low temperature fall-down test, falling height is with reference to enterprise's mark.
Pass the test.
The performance indicator of above-mentioned four tests and modified ABS material shows that modified ABS material of the invention is applied to curved surface
The curved surface rear shell of TV has good heat resistance and intensity, and reduces the dimensional contraction rate of curved surface rear shell.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can be realized by means of software and necessary general hardware platform, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Based on this understanding, technical solution of the present invention substantially in other words does the prior art
The part contributed out can be embodied in the form of software products, which is stored in a storage medium
In (such as ROM/RAM, magnetic disk, CD), including some instructions are used so that a terminal device (can be mobile phone, computer, clothes
Be engaged in device, air conditioner or the network equipment etc.) method that executes each embodiment of the present invention.
The above is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (5)
1. casing manufacturing method after a kind of display terminal curved surface, which is characterized in that casing manufacturing method utilizes after the display terminal curved surface
Modified ABS material made of a kind of manufacturing method of modified ABS material,
The manufacturing method of the modified ABS material includes:
General ABS material, talcum powder, lubricant and antioxidant are added in plastic extruder, wherein the lubricant includes
Silicon magnesium compounded lubricant and stearic acid lubricant, the antioxidant include phosphorus phenols composite antioxidant, the general ABS material
Weight percent be 96%~98%, the weight percent of the talcum powder is 1%~2%, the silicon magnesium compounded lubricant
Weight percent be 0.5%~2%, the weight percent of the stearic acid lubricant is 0.2%~1%, the phosphorus phenol
The weight percent of class composite antioxidant is 0.3%~1%；The temperature of plastic extruder is adjusted to 180~230 degrees Celsius, is squeezed
Modified ABS material out；
Casing manufacturing method includes: after the display terminal curved surface
The modified ABS material is added in injection molding machine, adjusting the hot-fluid channel temp in injection molding machine is 220~230 degrees Celsius,
Modified ABS material to be melted；
The hot melt adhesive being made of the modified ABS material after melting is injected into curved surface rear shell mold cavity by injection hole；
Pressure maintaining and cooling are carried out to the hot melt adhesive in curved surface rear shell mold cavity, display terminal curved surface rear shell is made.
2. casing manufacturing method after display terminal curved surface as described in claim 1, which is characterized in that the temperature of the gun barrel of injection molding machine
It is set in 190~230 degrees Celsius.
3. casing manufacturing method after display terminal curved surface as described in claim 1, which is characterized in that it is described will be by changing after melting
Property ABS material composition hot melt adhesive include: by the step that injection hole is injected into curved surface rear shell mold cavity
It is controlled using being delayed into glue, the injection hole for opening injection molding machine designated position is injected into the type chamber of curved surface rear shell mold by melting
The hot melt adhesive of modified ABS material composition after change；
Each injection hole is opened one by one at a distance from each injection hole according to hot melt adhesive in curved surface rear shell mold cavity.
4. a kind of display terminal curved surface rear shell, which is characterized in that the display terminal curved surface rear shell is appointed by claims 1 to 3
Casing manufacturing method is made after display terminal curved surface described in meaning one.
5. display terminal curved surface rear shell as claimed in claim 4, which is characterized in that the display terminal curved surface rear shell is curved surface
TV rear shell.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610296692.8A CN105924881B (en) | 2016-05-06 | 2016-05-06 | Casing manufacturing method and rear shell after modified ABS material manufacturing method, curved surface |
| PCT/CN2016/096950 WO2017190455A1 (en) | 2016-05-06 | 2016-08-26 | Method for manufacturing modified abs material, method for manufacturing cambered rear shell, and rear shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610296692.8A CN105924881B (en) | 2016-05-06 | 2016-05-06 | Casing manufacturing method and rear shell after modified ABS material manufacturing method, curved surface |
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| Publication Number | Publication Date |
|---|---|
| CN105924881A CN105924881A (en) | 2016-09-07 |
| CN105924881B true CN105924881B (en) | 2019-07-12 |
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| CN201610296692.8A Active CN105924881B (en) | 2016-05-06 | 2016-05-06 | Casing manufacturing method and rear shell after modified ABS material manufacturing method, curved surface |
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| WO (1) | WO2017190455A1 (en) |
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| CN102108180A (en) * | 2009-12-29 | 2011-06-29 | 合肥杰事杰新材料有限公司 | Flame-retardant and heat-resistant acrylonitrile-butadiene-styrene (ABS) resin and preparation method thereof |
| US20110159259A1 (en) * | 2009-12-31 | 2011-06-30 | Cheil Industries Inc. | Molded Article for Electronic Device Housing and Method for Preparing the Same |
| CN102391608B (en) * | 2011-10-18 | 2012-12-26 | 金发科技股份有限公司 | Ultrahigh heat-resistant and flame-retardant ABS (acrylonitrile butadiene styrene) composition and preparation method thereof |
| CN103113709A (en) * | 2013-03-06 | 2013-05-22 | 苏州井村塑料科技有限公司 | Special high-filling master batch for acrylonitrile butadiene styrene and preparation method thereof |
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2016
- 2016-05-06 CN CN201610296692.8A patent/CN105924881B/en active Active
- 2016-08-26 WO PCT/CN2016/096950 patent/WO2017190455A1/en active Application Filing
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| JP2004176015A (en) * | 2002-11-29 | 2004-06-24 | Teijin Chem Ltd | Colored flame retardant thermoplastic resin composition and molded article consisting of the same |
| CN1621440A (en) * | 2004-10-21 | 2005-06-01 | 俞立群 | Plastic lignified board and its making method |
| CN1765988A (en) * | 2004-10-29 | 2006-05-03 | 上海日之升新技术发展有限公司 | Nylon and ABS alloy material and its preparation method |
| CN102690491A (en) * | 2012-05-11 | 2012-09-26 | 金发科技股份有限公司 | Heat-resistant, halogen-free and flame-retardant ABS (acrylonitrile butadiene styrene) resin composite and preparation method thereof |
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| WO2017190455A1 (en) | 2017-11-09 |
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