CN111556186B - Anti-slip method for mobile phone and mobile phone shell - Google Patents
Anti-slip method for mobile phone and mobile phone shell Download PDFInfo
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- CN111556186B CN111556186B CN202010545440.0A CN202010545440A CN111556186B CN 111556186 B CN111556186 B CN 111556186B CN 202010545440 A CN202010545440 A CN 202010545440A CN 111556186 B CN111556186 B CN 111556186B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/18—Telephone sets specially adapted for use in ships, mines, or other places exposed to adverse environment
- H04M1/185—Improving the rigidity of the casing or resistance to shocks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B6/00—Cleaning by electrostatic means
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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
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
- C08L75/08—Polyurethanes from polyethers
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- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Telephone Set Structure (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a mobile phone antiskid method and a mobile phone shell, wherein the mobile phone antiskid method comprises the following raw materials in parts by weight: selecting 30-40 parts of polyester polyol, 10-20 parts of silica gel, 20-30 parts of diisocyanate, 12-18 parts of rosin resin, 4.5-6.5 parts of mica powder, 0.5-0.7 part of catalyst and 0.3-0.5 part of dye by weight part as a unit, and placing in a separate container for later use; the invention relates to the technical field of processing of mobile phone shells. This cell-phone antiskid method and cell-phone shell, through add rosin resin and mica powder in cell-phone shell composition, injection moulding after the double screw reactor plastify, cooperation spraying priming paint, colored paint and vacuum coating, can be on the material itself effectual enhancement cell-phone shell's coefficient of friction, the anti-skidding performance of cell-phone shell has obtained very big promotion, the line is carved with the side at the back of cell-phone shell simultaneously, can make and produce great frictional force rather than the contact time, in the physical mode, the anti-skidding performance of cell-phone shell has been strengthened, the anti-skidding material cost of use is comparatively cheap, promote effectually.
Description
Technical Field
The invention relates to the technical field of mobile phone shell processing, in particular to a mobile phone anti-skidding method and a mobile phone shell.
Background
With the rapid development of the science and technology level, the science and technology beauty industry is newly developed as a novel industry. The fashion IT brand develops along with diversification of the market; the mobile phone protection shell is diversified according to the increase of brands and functions of the mobile phone, and is divided into PC shells, leather, silica gel, cloth, hard plastic, leather covers, metal toughened glass shells, soft plastic, velvet, silk and other products according to the texture; the mobile phone protective shell is used as an ornament to enable a mobile phone to become a landscape, and can protect the mobile phone, prevent falling, scraping, water and shock; the cell-phone protective housing can divide into: PC shell, silica gel, leather sheath, crystal shell, clear water shell, reticulated shell, environment-friendly PC shell metal shell, plastic, carbon fiber and the like.
The anti-skid method of the traditional mobile phone shell is to design a corresponding mobile phone shell, and the effect of increasing friction is achieved by designing a convex structure on the back or side of the mobile phone shell, but the mobile phone shell can increase the thickness of the mobile phone shell, so that the use hand feeling is influenced, friction is increased only in a physical mode, and the anti-skid effect is greatly reduced when more sweat is encountered.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a mobile phone anti-skidding method and a mobile phone shell, and solves the problems that the existing mobile phone shell anti-skidding method is designed with a corresponding mobile phone shell, the thickness of the mobile phone shell can be increased by the mobile phone shell, the use hand feeling is influenced, and the limitation exists only by increasing the friction in a physical mode.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a mobile phone anti-skidding method and a mobile phone shell specifically comprise the following steps:
s1, raw materials: selecting 30-40 parts of polyester polyol, 10-20 parts of silica gel, 20-30 parts of diisocyanate, 12-18 parts of rosin resin, 4.5-6.5 parts of mica powder, 0.5-0.7 part of catalyst and 0.3-0.5 part of dye by weight part as a unit, and placing in a separate container for later use;
s2, raw material plasticizing: mixing polyester polyol, silica gel, diisocyanate and rosin resin, heating to 80-100 ℃, injecting the heated raw materials into a double-screw reactor, adding a catalyst, mica powder and a dye into the double-screw reactor, and reacting and plasticizing the mixed materials in the double-screw reactor;
s3, spray painting and film coating: plasticizing, namely performing injection molding on the mixture in the S2 to form a plastic mobile phone shell with a certain thickness through an injection molding machine, spraying primer and colored paint on the formed mobile phone shell in sequence, performing vacuum coating on the surface of the mobile phone shell sprayed with the primer and the colored paint, and waiting for the mobile phone shell to be cooled;
s4, texture carving: the method comprises the following steps of (1) carving lines on the back and the side of the mobile phone shell by using a cutter, polishing the surface of the carved lines, spraying finish paint on the inner wall of the carved lines, and repeating the operation until the lines are filled in the back and the side of the mobile phone shell;
s5, cleaning and dedusting: the cleaning device is used for cleaning stains and foreign matters on the surface of the mobile phone shell, then electrostatic dust removal operation is carried out on each area of the surface of the mobile phone shell, static electricity on the plastic mobile phone shell is eliminated, and drying is waited.
Preferably, the polyester polyol is 30 parts, the silica gel is 10 parts, the diisocyanate is 20 parts, the rosin resin is 12 parts, the mica powder is 4.5 parts, the catalyst is 0.5 part and the dye is 0.3 part by weight, and the components are placed in a single container for later use.
Preferably, the preparation method comprises the steps of selecting 35 parts of polyester polyol, 15 parts of silica gel, 25 parts of diisocyanate, 15 parts of rosin resin, 5.5 parts of mica powder, 0.6 part of catalyst and 0.4 part of dye by weight, and placing the materials in a separate container for later use.
Preferably, the polyester polyol 40 parts, the silica gel 20 parts, the diisocyanate 30 parts, the rosin resin 18 parts, the mica powder 6.5 parts, the catalyst 0.7 part and the dye 0.5 part are selected by weight parts as units, and are placed in a separate container for later use.
Preferably, the spraying process conditions of S3 are that the spraying temperature is 20-30 ℃, the leveling time is 3 minutes at 20-30 ℃, and the baking is 10 minutes at 60-70 ℃.
Preferably, when the texture is engraved on the back and the side of the mobile phone shell in the step S4, the depth of the texture is controlled to be 2-3mm, and the distance between the textures is controlled to be 4-5 mm.
Preferably, when the electrostatic dust removal is performed in S5, an automatic electrostatic dust removal air nozzle is used to perform electrostatic dust removal on the plastic mobile phone shell for 2 to 3 seconds.
The invention further discloses a mobile phone shell which comprises a mobile phone shell body, wherein an interface groove is formed in the left side of the mobile phone shell body in a penetrating mode, an earphone groove is formed in the left side of the mobile phone shell body and located on one side of the interface groove in a penetrating mode, a switch groove is formed in the right side of the top of the mobile phone shell body in a penetrating mode, and a camera groove is formed in the back of the mobile phone shell body in a penetrating mode.
(III) advantageous effects
The invention provides a mobile phone anti-skidding method and a mobile phone shell. Compared with the prior art, the method has the following beneficial effects: the anti-skidding method for the mobile phone and the mobile phone shell comprise the following raw materials in S1: selecting 30-40 parts of polyester polyol, 10-20 parts of silica gel, 20-30 parts of diisocyanate, 12-18 parts of rosin resin, 4.5-6.5 parts of mica powder, 0.5-0.7 part of catalyst and 0.3-0.5 part of dye by weight part as a unit, and placing in a separate container for later use; s2, raw material plasticizing: mixing polyester polyol, silica gel, diisocyanate and rosin resin, heating to 80-100 ℃, injecting the heated raw materials into a double-screw reactor, adding a catalyst, mica powder and a dye into the double-screw reactor, and reacting and plasticizing the mixed materials in the double-screw reactor; s3, spray painting and film coating: plasticizing, namely performing injection molding on the mixture in the S2 to form a plastic mobile phone shell with a certain thickness through an injection molding machine, spraying primer and colored paint on the formed mobile phone shell in sequence, performing vacuum coating on the surface of the mobile phone shell sprayed with the primer and the colored paint, and waiting for the mobile phone shell to be cooled; s4, texture carving: utilize the cutter at the back and the side line of carving on the cell-phone shell, the line surface of carving on, and at the line inner wall spraying finish paint of carving on, repeat above-mentioned operation, back and side of full cell-phone shell are filled up to the line, through add rosin resin and mica powder in cell-phone shell composition, injection moulding after the double screw reactor plastify, cooperation spraying priming paint, paint and vacuum coating, can be at the effectual coefficient of friction of reinforcing cell-phone shell on the material itself, the non-skid property of cell-phone shell has obtained very big promotion, simultaneously at the back and the side line of carving on the cell-phone shell, can make rather than producing great frictional force when contacting, in the physical mode, the non-skid property of cell-phone shell has been strengthened, the non-skid material cost of use is comparatively cheap, promote effectually.
Drawings
FIG. 1 is a perspective view of the external internal structure of a handset housing in accordance with the present invention;
FIG. 2 is a process flow diagram of the anti-slip method of the mobile phone of the present invention;
FIG. 3 is a table comparing the friction coefficients of embodiments of the present invention to market cell phone shells;
FIG. 4 is a chart comparing the friction coefficients of examples 1 to 3 of the present invention.
In the figure, 1 is a mobile phone shell body, 2 is an interface groove, 3 is an earphone groove, 4 is a switch groove and 5 is a camera groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, the embodiment of the present invention provides three technical solutions: a method for preventing a mobile phone from skidding specifically comprises the following embodiments:
example 1
S1, raw materials: selecting 30 parts of polyester polyol, 10 parts of silica gel, 20 parts of diisocyanate, 12 parts of rosin resin, 4.5 parts of mica powder, 0.5 part of catalyst and 0.3 part of dye by weight part as a unit, and placing the components in a single container for later use;
s2, raw material plasticizing: mixing polyester polyol, silica gel, diisocyanate and rosin resin, heating to 80 ℃, injecting the heated raw materials into a double-screw reactor, adding a catalyst, mica powder and a dye into the double-screw reactor, and reacting and plasticizing the mixed materials in the double-screw reactor;
s3, spray painting and film coating: plasticizing, namely performing injection molding on the mixture in the S2 to form a plastic mobile phone shell with a certain thickness through an injection molding machine, spraying primer and colored paint on the formed mobile phone shell in sequence, performing vacuum coating on the surface of the mobile phone shell sprayed with the primer and the colored paint, and waiting for the mobile phone shell to be cooled;
s4, texture carving: the method comprises the following steps of (1) carving lines on the back and the side of the mobile phone shell by using a cutter, polishing the surface of the carved lines, spraying finish paint on the inner wall of the carved lines, and repeating the operation until the lines are filled in the back and the side of the mobile phone shell;
s5, cleaning and dedusting: the cleaning device is used for cleaning stains and foreign matters on the surface of the mobile phone shell, then electrostatic dust removal operation is carried out on each area of the surface of the mobile phone shell, static electricity on the plastic mobile phone shell is eliminated, and drying is waited.
In the invention, the spraying process conditions of S3 are that the spraying temperature is 20 ℃, the leveling time is 3 minutes under the condition of 20 ℃, and the baking is 10 minutes under the condition of 60 ℃.
In the invention, when lines are carved on the back and the side of the mobile phone shell in S4, the depth of the lines is controlled to be 2mm, and the distance between the lines is controlled to be 4 mm.
In the invention, when electrostatic dust removal is carried out in S5, an automatic electrostatic dust removal air nozzle is adopted to carry out electrostatic dust removal on the plastic mobile phone shell for 2 seconds.
The invention also discloses a mobile phone shell, which comprises a mobile phone shell body 1, wherein the left side of the mobile phone shell body 1 is provided with an interface groove 2 in a penetrating manner, the left side of the mobile phone shell body 1 and one side positioned in the interface groove 2 are provided with an earphone groove 3 in a penetrating manner, the right side of the top of the mobile phone shell body 1 is provided with a switch groove 4 in a penetrating manner, and the back of the mobile phone shell body 1 is provided with a camera groove 5 in a penetrating manner.
Example 2
S1, raw materials: selecting 35 parts of polyester polyol, 15 parts of silica gel, 25 parts of diisocyanate, 15 parts of rosin resin, 5.5 parts of mica powder, 0.6 part of catalyst and 0.4 part of dye by weight part as a unit, and placing the components in a single container for later use;
s2, raw material plasticizing: mixing polyester polyol, silica gel, diisocyanate and rosin resin, heating to 90 ℃, injecting the heated raw materials into a double-screw reactor, adding a catalyst, mica powder and a dye into the double-screw reactor, and reacting and plasticizing the mixed materials in the double-screw reactor;
s3, spray painting and film coating: plasticizing, namely performing injection molding on the mixture in the S2 to form a plastic mobile phone shell with a certain thickness through an injection molding machine, spraying primer and colored paint on the formed mobile phone shell in sequence, performing vacuum coating on the surface of the mobile phone shell sprayed with the primer and the colored paint, and waiting for the mobile phone shell to be cooled;
s4, texture carving: the method comprises the following steps of (1) carving lines on the back and the side of the mobile phone shell by using a cutter, polishing the surface of the carved lines, spraying finish paint on the inner wall of the carved lines, and repeating the operation until the lines are filled in the back and the side of the mobile phone shell;
s5, cleaning and dedusting: the cleaning device is used for cleaning stains and foreign matters on the surface of the mobile phone shell, then electrostatic dust removal operation is carried out on each area of the surface of the mobile phone shell, static electricity on the plastic mobile phone shell is eliminated, and drying is waited.
In the invention, the spraying process conditions of S3 are that the spraying temperature is 25 ℃, the leveling time is 3 minutes at 25 ℃ and the baking is 10 minutes at 65 ℃.
In the invention, when lines are carved on the back and the side of the mobile phone shell in S4, the depth of the lines is controlled to be 2.5mm, and the distance between the lines is controlled to be 4.5 mm.
In the invention, when electrostatic dust collection is carried out in S5, an automatic electrostatic dust collection air nozzle is adopted to carry out electrostatic dust collection on the plastic mobile phone shell for 2.5 seconds.
The invention also discloses a mobile phone shell, which comprises a mobile phone shell body 1, wherein the left side of the mobile phone shell body 1 is provided with an interface groove 2 in a penetrating manner, the left side of the mobile phone shell body 1 and one side positioned in the interface groove 2 are provided with an earphone groove 3 in a penetrating manner, the right side of the top of the mobile phone shell body 1 is provided with a switch groove 4 in a penetrating manner, and the back of the mobile phone shell body 1 is provided with a camera groove 5 in a penetrating manner.
Example 3
S1, raw materials: selecting 40 parts of polyester polyol, 20 parts of silica gel, 30 parts of diisocyanate, 18 parts of rosin resin, 6.5 parts of mica powder, 0.7 part of catalyst and 0.5 part of dye by weight part as a unit, and placing the components in a single container for later use;
s2, raw material plasticizing: mixing polyester polyol, silica gel, diisocyanate and rosin resin, heating to 100 ℃, injecting the heated raw materials into a double-screw reactor, adding a catalyst, mica powder and a dye into the double-screw reactor, and reacting and plasticizing the mixed materials in the double-screw reactor;
s3, spray painting and film coating: plasticizing, namely performing injection molding on the mixture in the S2 to form a plastic mobile phone shell with a certain thickness through an injection molding machine, spraying primer and colored paint on the formed mobile phone shell in sequence, performing vacuum coating on the surface of the mobile phone shell sprayed with the primer and the colored paint, and waiting for the mobile phone shell to be cooled;
s4, texture carving: the method comprises the following steps of (1) carving lines on the back and the side of the mobile phone shell by using a cutter, polishing the surface of the carved lines, spraying finish paint on the inner wall of the carved lines, and repeating the operation until the lines are filled in the back and the side of the mobile phone shell;
s5, cleaning and dedusting: the cleaning device is used for cleaning stains and foreign matters on the surface of the mobile phone shell, then electrostatic dust removal operation is carried out on each area of the surface of the mobile phone shell, static electricity on the plastic mobile phone shell is eliminated, and drying is waited.
In the invention, the spraying process conditions of S3 are that the spraying temperature is 30 ℃, the leveling time is 3 minutes under the condition of 30 ℃ and the baking is 10 minutes under the condition of 70 ℃.
In the invention, when lines are carved on the back and the side of the mobile phone shell in S4, the depth of the lines is controlled to be 3mm, and the distance between the lines is controlled to be 5 mm.
In the invention, when electrostatic dust removal is carried out in S5, an automatic electrostatic dust removal air nozzle is adopted to carry out electrostatic dust removal on the plastic mobile phone shell for 3 seconds.
The invention also discloses a mobile phone shell, which comprises a mobile phone shell body 1, wherein the left side of the mobile phone shell body 1 is provided with an interface groove 2 in a penetrating manner, the left side of the mobile phone shell body 1 and one side positioned in the interface groove 2 are provided with an earphone groove 3 in a penetrating manner, the right side of the top of the mobile phone shell body 1 is provided with a switch groove 4 in a penetrating manner, and the back of the mobile phone shell body 1 is provided with a camera groove 5 in a penetrating manner.
Comparative experiment
A certain mobile phone shell manufacturer selects the mobile phone shells in the embodiments 1-3 and the mobile phone shells in the market to carry out a comparison experiment, as can be seen from fig. 3, the friction coefficients of the mobile phone shells in the embodiments 1-3 are 0.92, and the friction coefficient of the mobile phone shells in the market is 0.37, so that the anti-skid performance of the mobile phone shell is far superior to that of the mobile phone shells in the market, as can be seen from fig. 4, the friction coefficient of the mobile phone shell in the embodiment 2 is the highest, the anti-skid performance of the mobile phone shell is the best, and the mobile phone shell is the preferred scheme, and the rest two types.
To sum up, through add rosin resin and mica powder in cell-phone shell composition, injection moulding after the double screw reactor plastify, cooperation spraying priming paint, colored paint and vacuum coating, can be on the material itself effectual enhancement cell-phone shell's coefficient of friction, the skid resistance of cell-phone shell has obtained very big promotion, simultaneously at the back and the side portrayal line of cell-phone shell, can make and produce great frictional force rather than when contacting, in the physical mode, the skid resistance of cell-phone shell has been strengthened, the skid resistance cost of use is comparatively cheap, promote effectually.
And those not described in detail in this specification are well within the skill of those in the art.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A method for preventing a mobile phone from skidding is characterized by comprising the following steps: the method specifically comprises the following steps:
s1, raw materials: selecting 30-40 parts of polyester polyol, 10-20 parts of silica gel, 20-30 parts of diisocyanate, 12-18 parts of rosin resin, 4.5-6.5 parts of mica powder, 0.5-0.7 part of catalyst and 0.3-0.5 part of dye by weight part as a unit, and placing in a separate container for later use;
s2, raw material plasticizing: mixing polyester polyol, silica gel, diisocyanate and rosin resin, heating to 80-100 ℃, injecting the heated raw materials into a double-screw reactor, adding a catalyst, mica powder and a dye into the double-screw reactor, and reacting and plasticizing the mixed materials in the double-screw reactor;
s3, spray painting and film coating: plasticizing, namely performing injection molding on the mixture in the S2 to form a plastic mobile phone shell with a certain thickness through an injection molding machine, spraying primer and colored paint on the formed mobile phone shell in sequence, performing vacuum coating on the surface of the mobile phone shell sprayed with the primer and the colored paint, and waiting for the mobile phone shell to be cooled;
s4, texture carving: the method comprises the following steps of (1) carving lines on the back and the side of the mobile phone shell by using a cutter, polishing the surface of the carved lines, spraying finish paint on the inner wall of the carved lines, and repeating the operation until the lines are filled in the back and the side of the mobile phone shell;
s5, cleaning and dedusting: the cleaning device is used for cleaning stains and foreign matters on the surface of the mobile phone shell, then electrostatic dust removal operation is carried out on each area of the surface of the mobile phone shell, static electricity on the plastic mobile phone shell is eliminated, and drying is waited.
2. The anti-slip method for the mobile phone according to claim 1, wherein: the preparation method comprises the following steps of selecting 30 parts of polyester polyol, 10 parts of silica gel, 20 parts of diisocyanate, 12 parts of rosin resin, 4.5 parts of mica powder, 0.5 part of catalyst and 0.3 part of dye by weight, and placing the materials in a single container for later use.
3. The anti-slip method for the mobile phone according to claim 1, wherein: the preparation method comprises the following steps of selecting 35 parts of polyester polyol, 15 parts of silica gel, 25 parts of diisocyanate, 15 parts of rosin resin, 5.5 parts of mica powder, 0.6 part of catalyst and 0.4 part of dye by weight, and placing the materials in a single container for later use.
4. The anti-slip method for the mobile phone according to claim 1, wherein: the preparation method comprises the following steps of selecting 40 parts of polyester polyol, 20 parts of silica gel, 30 parts of diisocyanate, 18 parts of rosin resin, 6.5 parts of mica powder, 0.7 part of catalyst and 0.5 part of dye by weight, and placing the materials in a single container for later use.
5. The anti-slip method for mobile phone according to any one of claims 1-4, wherein: the spraying process conditions of S3 are that the spraying temperature is 20-30 ℃, the leveling time is 3 minutes at 20-30 ℃, and the baking is 10 minutes at 60-70 ℃.
6. The anti-slip method for mobile phone according to any one of claims 1-4, wherein: when lines are carved on the back and the side of the mobile phone shell in the S4, the depth of the lines is controlled to be 2-3mm, and the distance between the lines is controlled to be 4-5 mm.
7. The anti-slip method for mobile phone according to any one of claims 1-4, wherein: and when electrostatic dust collection is carried out in the S5, an automatic electrostatic dust collection air nozzle is adopted to carry out electrostatic dust collection on the plastic mobile phone shell for 2-3 seconds.
8. A mobile phone casing, comprising a mobile phone casing body (1), characterized in that: the left side of cell-phone shell body (1) is run through and has been seted up interface slot (2), the left side of cell-phone shell body (1) and the one side that is located interface slot (2) run through and have been seted up earphone groove (3), the right side at cell-phone shell body (1) top is run through and has been seted up switch slot (4), the back of cell-phone shell body (1) runs through and has been seted up camera groove (5).
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| CN112040048A (en) * | 2020-09-09 | 2020-12-04 | 东莞市群利电子科技有限公司 | Mobile phone shell with waterproof function and manufacturing process thereof |
| CN112839126B (en) * | 2021-01-04 | 2022-10-11 | 深圳市基斯特科技有限公司 | Lithium cell phone protection shell |
| CN113135053A (en) * | 2021-04-23 | 2021-07-20 | 深圳万利科技有限公司 | Printing process of composite material 5G mobile phone backboard |
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| CN109280393A (en) * | 2018-08-16 | 2019-01-29 | 温州云彩礼品有限公司 | A kind of mobile phone shell material and preparation method thereof |
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| EP3798267A1 (en) * | 2014-01-17 | 2021-03-31 | Lubrizol Advanced Materials, Inc. | Methods of using thermoplastic polyurethanes in selective laser sintering and systems and articles thereof |
| CN105482701A (en) * | 2015-11-27 | 2016-04-13 | 苏州鑫远同装饰工程有限公司 | Skid-resistant paint |
| CN105504222B (en) * | 2015-12-31 | 2018-04-24 | 山东一诺威聚氨酯股份有限公司 | Special TPU materials of high transparency mobile phone shell sheath and preparation method thereof |
| CN107586374A (en) * | 2017-07-31 | 2018-01-16 | 成都爆米花信息技术有限公司 | A kind of preparation method of mobile phone shell |
| CN109561607A (en) * | 2017-09-25 | 2019-04-02 | 广东长盈精密技术有限公司 | Electronic equipment casing, shell processing method and device |
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| CN205304899U (en) * | 2015-12-30 | 2016-06-08 | 深圳市信毅科技有限公司 | Highly prevent falling cell -phone protective sheath |
| CN109280393A (en) * | 2018-08-16 | 2019-01-29 | 温州云彩礼品有限公司 | A kind of mobile phone shell material and preparation method thereof |
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