CN112040048A - Mobile phone shell with waterproof function and manufacturing process thereof - Google Patents
Mobile phone shell with waterproof function and manufacturing process thereof Download PDFInfo
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- CN112040048A CN112040048A CN202010938413.XA CN202010938413A CN112040048A CN 112040048 A CN112040048 A CN 112040048A CN 202010938413 A CN202010938413 A CN 202010938413A CN 112040048 A CN112040048 A CN 112040048A
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D99/00—Subject matter not provided for in other groups of this subclass
- B29D99/006—Producing casings, e.g. accumulator cases
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/06—Hermetically-sealed casings
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Signal Processing (AREA)
- Mechanical Engineering (AREA)
- Telephone Set Structure (AREA)
- Casings For Electric Apparatus (AREA)
Abstract
The invention discloses a mobile phone shell with a waterproof function and a manufacturing process thereof, and the mobile phone shell comprises a main shell, wherein the inner surface of the main shell is movably connected with a sealing shell, the inner surface of the main shell and one side of the sealing shell are movably connected with a connecting shell, and the inner surface of the main shell and one side of the sealing shell are movably connected with a back shell. This cell-phone shell with waterproof function and preparation technology, internal surface at the main casing body sets up sealed casing, connect casing and back casing, and with sealed casing, it fixes through screw hole and screw thread seat to connect casing and back casing, the cotton that absorbs water of casing front and back embedding is connected in the cooperation, can get into a small amount of water at the cell-phone shell, sealed casing, it can play certain effect of blockking to connect casing and back casing, it absorbs water to absorb water simultaneously to absorb cotton, can play fine guard action to the inside electrical component of cell-phone shell, water-proof effects is good.
Description
Technical Field
The invention relates to the technical field of processing of mobile phone shells, in particular to a mobile phone shell with a waterproof function and a manufacturing process thereof.
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.
In the manufacturing process of the traditional mobile phone shell, a sealing shell is usually arranged on the back face of a main shell, when a small amount of water enters the mobile phone shell, a gap formed between the sealing shell and the main shell has a poor water blocking effect, the material of the mobile phone shell does not have a waterproof function, the surface of the mobile phone shell can have a water seepage phenomenon, and the whole waterproof effect is poor.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a mobile phone shell with a waterproof function and a manufacturing process thereof, and solves the problems that in the manufacturing process of the existing mobile phone shell, only a sealing shell is arranged on the back surface of a main shell, a gap formed between the sealing shell and the sealing shell has poor water blocking effect, and the material of the mobile phone shell does not have the waterproof function.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a mobile phone shell with waterproof function comprises a main shell body, wherein the inner surface of the main shell body is movably connected with a sealing shell body, the inner surface of the main shell body and one side of the sealing shell body are movably connected with a connecting shell body, the inner surface of the main shell body and one side of the sealing shell body are movably connected with a back shell body, one side of the sealing shell is contacted with one side of the connecting shell, one side of the connecting shell is contacted with one side of the back shell, threaded holes are formed in the surfaces of the sealing shell, the connecting shell and the back shell in a penetrating manner, threaded seats are fixedly connected to the upper side and the lower side of the inner wall of the main shell, the two threaded seats are fastened with the threaded holes through screws, the upper side and the lower side of the front surface and the back surface of the connecting shell are both provided with water-absorbing cotton in an embedded mode, and one side of the water-absorbing cotton is in contact with one side of the sealing shell and one side of the back surface shell respectively.
The invention also discloses a manufacturing process of the mobile phone shell with the waterproof function, which specifically comprises the following steps:
s1, selecting raw materials: selecting 8-10 parts of sodium silicate, 10-12 parts of talcum powder, 14-16 parts of hollow glass beads, 10-12 parts of rosin resin, 5.5-7.5 parts of mica powder, 40-50 parts of polyester polyol, 20-30 parts of silica gel and 80-100 parts of organic solvent by weight as units, and placing the components in a single container for later use;
s2, mixing the raw materials: pouring an organic solvent into a reaction kettle, then pouring sodium silicate, talcum powder and hollow glass beads into the reaction kettle to be dissolved in the organic solvent, raising the temperature in the reaction kettle to 200 ℃ through a heating device, and stirring and mixing through a stirring mechanism to form mixed viscous liquid;
s3, raw material plasticizing: at the moment, polyester polyol and silica gel are mixed and heated to 90-100 ℃, the heated raw materials are injected into a double-screw reactor, simultaneously mixed viscous liquid of sodium silicate, talcum powder and hollow glass beads is added into a double-screw extruder, and the mixed materials are subjected to plasticizing reaction in the double-screw reactor;
s4, spray painting and film coating: the material in the S3 is injected into a plastic mobile phone shell with a certain thickness through an injection molding machine, and the formed mobile phone shell is sequentially sprayed with primer and colored paint, and then the surface of the mobile phone shell sprayed with the primer and the colored paint is subjected to vacuum coating for waiting for cooling;
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 preparation method comprises the steps of selecting 8 parts of sodium silicate, 10 parts of talcum powder, 14 parts of hollow glass beads, 10 parts of rosin resin, 5.5 parts of mica powder, 40 parts of polyester polyol, 20 parts of silica gel and 80 parts of organic solvent by weight, and placing the materials in a single container for later use.
Preferably, the preparation method comprises the steps of taking the parts by weight as units, selecting 9 parts of sodium silicate, 11 parts of talcum powder, 15 parts of hollow glass beads, 11 parts of rosin resin, 6.5 parts of mica powder, 45 parts of polyester polyol, 25 parts of silica gel and 90 parts of organic solvent, and placing the materials in a single container for later use.
Preferably, the preparation method comprises the steps of selecting 10 parts of sodium silicate, 12 parts of talcum powder, 16 parts of hollow glass beads, 12 parts of rosin resin, 7.5 parts of mica powder, 50 parts of polyester polyol, 30 parts of silica gel and 100 parts of organic solvent by weight, and placing the materials in a single container for later use.
Preferably, the organic solvent in S1 is one or more of methanol, n-propanol, n-butanol, isobutanol and ethylene glycol.
Preferably, the rotation speed of the stirring mechanism in S2 is 200-300r/min, and the stirring time of the stirring mechanism is 10-20 min.
Preferably, the spraying process condition of S4 is that the spraying temperature is 40-50 ℃, and the leveling time is 3 minutes under the condition of 40-50 ℃.
(III) advantageous effects
The invention provides a mobile phone shell with a waterproof function and a manufacturing process thereof. Compared with the prior art, the method has the following beneficial effects:
(1) the mobile phone shell with the waterproof function and the manufacturing process thereof, a sealing shell is movably connected with the inner surface of the main shell body, one side of the inner surface of the main shell body, which is positioned on the sealing shell body, is movably connected with a connecting shell, one side of the sealing shell is contacted with one side of the connecting shell, one side of the connecting shell is contacted with one side of a back shell, the surfaces of the sealing shell and the connecting shell are respectively penetrated with a threaded hole, threaded seats are fixedly connected with the upper side and the lower side of the inner wall of the main shell body, the two threaded seats are fastened with the threaded holes through screws, water absorbing cotton is embedded and arranged on the upper side and the lower side of the front surface and the back surface of the connecting shell, one side of the two water absorbing cotton is respectively contacted with one side of the sealing shell and one side of the back shell body, the, Connect casing and back casing to with sealed casing, connect casing and back casing and fix through screw hole and screw thread seat, the cooperation is connected the positive cotton that absorbs water with the back embedding of casing, can be when the cell-phone shell gets into a small amount of water, sealed casing, connect casing and back casing and can play certain effect of blockking, the cotton that absorbs water simultaneously absorbs water, can play fine guard action to the inside electrical element of hand casing, water-proof effects is good.
(2) This cell-phone shell with waterproof function and preparation technology thereof chooses through at S1, raw materials: selecting 8-10 parts of sodium silicate, 10-12 parts of talcum powder, 14-16 parts of hollow glass beads, 10-12 parts of rosin resin, 5.5-7.5 parts of mica powder, 40-50 parts of polyester polyol, 20-30 parts of silica gel and 80-100 parts of organic solvent by weight as units, and placing the components in a single container for later use; s2, mixing the raw materials: pouring an organic solvent into a reaction kettle, then pouring sodium silicate, talcum powder and hollow glass beads into the reaction kettle to be dissolved in the organic solvent, raising the temperature in the reaction kettle to 200 ℃ through a heating device, and stirring and mixing through a stirring mechanism to form mixed viscous liquid; s3, raw material plasticizing: mix polyester polyol and silica gel and heat to 90-100 ℃ this moment, pour into the double screw reactor with the raw materials after the heating, add sodium silicate in the double screw extruder simultaneously, the talcum powder, the mixed thick liquid of hollow glass microballon, the plastify reaction takes place for the mixed material in the double screw reactor, through adding sodium aluminosilicate, talcum powder and hollow glass microballon dissolve in organic solvent, take place the plastify reaction in the double screw reactor after forming mixed thick liquid, make the cell-phone shell have certain waterproof performance after the shaping, avoid the problem of traditional cell-phone shell surface infiltration, rosin tree and mica powder that the cooperation was added, the coefficient of friction of cell-phone shell can effectual reinforcing, strengthen the non-skid property of cell-phone shell.
Drawings
FIG. 1 is an exploded view of the external structure of the present invention;
FIG. 2 is a flow chart of a process for manufacturing a mobile phone case according to the present invention;
figure 3 is a chart comparing the water resistance of the present invention and a market handset housing.
In the figure, 1-main shell, 2-sealing shell, 3-connecting shell, 4-back shell, 5-threaded hole, 6-threaded seat and 7-absorbent cotton.
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. 1-3, the embodiment of the present invention provides three technical solutions: a mobile phone shell with a waterproof function and a manufacturing process thereof specifically comprise the following embodiments:
example 1
Comprises a main shell body 1, a sealing shell body 2 is movably connected with the inner surface of the main shell body 1, a connecting shell body 3 is movably connected with the inner surface of the main shell body 1 and one side of the sealing shell body 2, a back shell body 4 is movably connected with the inner surface of the main shell body 1 and one side of the sealing shell body 2, one side of the sealing shell body 2 is contacted with one side of the connecting shell body 3, one side of the connecting shell body 3 is contacted with one side of the back shell body 4, the sealing shell body 2, threaded holes 5 are formed in the surfaces of the connecting shell 3 and the back shell 4 in a penetrating mode, threaded seats 6 are fixedly connected to the upper side and the lower side of the inner wall of the main shell 1, the two threaded seats 6 are fastened with the threaded holes 5 through screws, the upper side and the lower side of the front face and the back face of the connecting shell 3 are provided with water absorbing cotton 7 in an embedded mode, and one side of the two water absorbing cotton 7 is in contact with one side of the sealing shell 2 and one side of the back shell 4 respectively.
The invention also discloses a manufacturing process of the mobile phone shell with the waterproof function, which specifically comprises the following steps:
s1, selecting raw materials: selecting 8 parts of sodium silicate, 10 parts of talcum powder, 14 parts of hollow glass beads, 10 parts of rosin resin, 5.5 parts of mica powder, 40 parts of polyester polyol, 20 parts of silica gel and 80 parts of organic solvent by weight parts as units, and placing the components in a single container for later use;
s2, mixing the raw materials: pouring an organic solvent into a reaction kettle, then pouring sodium silicate, talcum powder and hollow glass beads into the reaction kettle to be dissolved in the organic solvent, raising the temperature in the reaction kettle to 200 ℃ through a heating device, and stirring and mixing through a stirring mechanism to form mixed viscous liquid;
s3, raw material plasticizing: at the moment, mixing polyester polyol and silica gel, heating to 90 ℃, injecting the heated raw materials into a double-screw reactor, simultaneously adding mixed viscous liquid of sodium silicate, talcum powder and hollow glass beads into a double-screw extruder, and performing plasticizing reaction on the mixed materials in the double-screw reactor;
s4, spray painting and film coating: the material in the S3 is injected into a plastic mobile phone shell with a certain thickness through an injection molding machine, and the formed mobile phone shell is sequentially sprayed with primer and colored paint, and then the surface of the mobile phone shell sprayed with the primer and the colored paint is subjected to vacuum coating for waiting for cooling;
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 organic solvent in S1 is one or more of methanol, n-propanol, n-butanol, isobutanol and ethylene glycol.
In the invention, the rotating speed of the stirring mechanism in S2 is 200r/min, and the stirring time of the stirring mechanism is 10 min.
In the invention, the spraying process condition of S4 is that the spraying temperature is 40 ℃, and the leveling time is 3 minutes at 40 DEG C
Example 2
Comprises a main shell body 1, a sealing shell body 2 is movably connected with the inner surface of the main shell body 1, a connecting shell body 3 is movably connected with the inner surface of the main shell body 1 and one side of the sealing shell body 2, a back shell body 4 is movably connected with the inner surface of the main shell body 1 and one side of the sealing shell body 2, one side of the sealing shell body 2 is contacted with one side of the connecting shell body 3, one side of the connecting shell body 3 is contacted with one side of the back shell body 4, the sealing shell body 2, threaded holes 5 are formed in the surfaces of the connecting shell 3 and the back shell 4 in a penetrating mode, threaded seats 6 are fixedly connected to the upper side and the lower side of the inner wall of the main shell 1, the two threaded seats 6 are fastened with the threaded holes 5 through screws, the upper side and the lower side of the front face and the back face of the connecting shell 3 are provided with water absorbing cotton 7 in an embedded mode, and one side of the two water absorbing cotton 7 is in contact with one side of the sealing shell 2 and one side of the back shell 4 respectively.
The invention also discloses a manufacturing process of the mobile phone shell with the waterproof function, which specifically comprises the following steps:
s1, selecting raw materials: selecting 9 parts of sodium silicate, 11 parts of talcum powder, 15 parts of hollow glass beads, 11 parts of rosin resin, 6.5 parts of mica powder, 45 parts of polyester polyol, 25 parts of silica gel and 90 parts of organic solvent by weight parts as units, and placing the components in a single container for later use;
s2, mixing the raw materials: pouring an organic solvent into a reaction kettle, then pouring sodium silicate, talcum powder and hollow glass beads into the reaction kettle to be dissolved in the organic solvent, raising the temperature in the reaction kettle to 200 ℃ through a heating device, and stirring and mixing through a stirring mechanism to form mixed viscous liquid;
s3, raw material plasticizing: at the moment, mixing polyester polyol and silica gel, heating to 95 ℃, injecting the heated raw materials into a double-screw reactor, simultaneously adding mixed viscous liquid of sodium silicate, talcum powder and hollow glass beads into a double-screw extruder, and carrying out plasticizing reaction on the mixed materials in the double-screw reactor;
s4, spray painting and film coating: the material in the S3 is injected into a plastic mobile phone shell with a certain thickness through an injection molding machine, and the formed mobile phone shell is sequentially sprayed with primer and colored paint, and then the surface of the mobile phone shell sprayed with the primer and the colored paint is subjected to vacuum coating for waiting for cooling;
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 organic solvent in S1 is one or more of methanol, n-propanol, n-butanol, isobutanol and ethylene glycol.
In the invention, the rotating speed of the stirring mechanism in S2 is 250r/min, and the stirring time of the stirring mechanism is 15 min.
In the invention, the spraying process condition of S4 is that the spraying temperature is 45 ℃, and the leveling time is 3 minutes at 45 DEG C
Example 3
Comprises a main shell body 1, a sealing shell body 2 is movably connected with the inner surface of the main shell body 1, a connecting shell body 3 is movably connected with the inner surface of the main shell body 1 and one side of the sealing shell body 2, a back shell body 4 is movably connected with the inner surface of the main shell body 1 and one side of the sealing shell body 2, one side of the sealing shell body 2 is contacted with one side of the connecting shell body 3, one side of the connecting shell body 3 is contacted with one side of the back shell body 4, the sealing shell body 2, threaded holes 5 are formed in the surfaces of the connecting shell 3 and the back shell 4 in a penetrating mode, threaded seats 6 are fixedly connected to the upper side and the lower side of the inner wall of the main shell 1, the two threaded seats 6 are fastened with the threaded holes 5 through screws, the upper side and the lower side of the front face and the back face of the connecting shell 3 are provided with water absorbing cotton 7 in an embedded mode, and one side of the two water absorbing cotton 7 is in contact with one side of the sealing shell 2 and one side of the back shell 4 respectively.
The invention also discloses a manufacturing process of the mobile phone shell with the waterproof function, which specifically comprises the following steps:
s1, selecting raw materials: selecting 10 parts of sodium silicate, 12 parts of talcum powder, 16 parts of hollow glass beads, 12 parts of rosin resin, 7.5 parts of mica powder, 50 parts of polyester polyol, 30 parts of silica gel and 100 parts of organic solvent by weight parts as units, and placing the components in a single container for later use;
s2, mixing the raw materials: pouring an organic solvent into a reaction kettle, then pouring sodium silicate, talcum powder and hollow glass beads into the reaction kettle to be dissolved in the organic solvent, raising the temperature in the reaction kettle to 200 ℃ through a heating device, and stirring and mixing through a stirring mechanism to form mixed viscous liquid;
s3, raw material plasticizing: at the moment, mixing polyester polyol and silica gel, heating to 100 ℃, injecting the heated raw materials into a double-screw reactor, simultaneously adding mixed viscous liquid of sodium silicate, talcum powder and hollow glass beads into a double-screw extruder, and performing plasticizing reaction on the mixed materials in the double-screw reactor;
s4, spray painting and film coating: the material in the S3 is injected into a plastic mobile phone shell with a certain thickness through an injection molding machine, and the formed mobile phone shell is sequentially sprayed with primer and colored paint, and then the surface of the mobile phone shell sprayed with the primer and the colored paint is subjected to vacuum coating for waiting for cooling;
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 organic solvent in S1 is one or more of methanol, n-propanol, n-butanol, isobutanol and ethylene glycol.
In the invention, the rotating speed of the stirring mechanism in S2 is 300r/min, and the stirring time of the stirring mechanism is 10-20 min.
In the invention, the spraying process condition of S4 is that the spraying temperature is 50 ℃, and the leveling time is 3 minutes under the condition of 50 ℃.
Comparative experiment
According to a certain mobile phone shell manufacturer, the mobile phone shells in the embodiments 1-3 and the mobile phone shells in the market are selected for carrying out a comparison experiment, 100 mobile phone shells in the embodiments 1-3 and 100 mobile phone shells in the market are adopted in the experiment process, the integrity of the surfaces of the mobile phone shells in the embodiments 1-3 and the mobile phone shells in the market is guaranteed, as can be seen from the graph in FIG. 3, the waterproof coefficient of the mobile phone shells in the embodiments 1-3 is 0.95, and the waterproof coefficient of the mobile phone shells in the market is 0.47, so that the waterproof performance of the mobile phone shells in the embodiments 1-3 is far superior to that of the.
In summary, the sealing shell 2, the connecting shell 3 and the back shell 4 are arranged on the inner surface of the main shell 1, the sealing shell 2, the connecting shell 3 and the back shell 4 are fixed through the threaded holes 5 and the threaded seats 6, and the water-absorbing cotton 7 embedded in the front and the back of the connecting shell 3 is matched, so that when a small amount of water enters the mobile phone shell, the sealing shell 2, the connecting shell 3 and the back shell 4 can play a certain role in blocking, and meanwhile, the water-absorbing cotton 7 absorbs the water, so that the electric elements in the mobile phone shell can be well protected, and the waterproof effect is good; through adding sodium aluminosilicate, talcum powder and hollow glass microballon and dissolving in organic solvent, take place the plastify reaction in the twin-screw reactor after forming mixed viscous fluid for the cell-phone shell has certain waterproof performance after the shaping, avoids the problem of traditional cell-phone shell surface infiltration, and rosin tree and mica powder that the cooperation was added can effectual reinforcing cell-phone shell's coefficient of friction, the non-skid property of reinforcing cell-phone shell.
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 cell-phone shell with waterproof function, includes main casing body (1), its characterized in that: the inner surface of the main shell body (1) is movably connected with a sealing shell body (2), one side of the inner surface of the main shell body (1) and positioned on the sealing shell body (2) is movably connected with a connecting shell body (3), one side of the inner surface of the main shell body (1) and positioned on the sealing shell body (2) is movably connected with a back shell body (4), one side of the sealing shell body (2) is contacted with one side of the connecting shell body (3), one side of the connecting shell body (3) is contacted with one side of the back shell body (4), the surfaces of the sealing shell body (2), the connecting shell body (3) and the back shell body (4) are provided with threaded holes (5) in a penetrating manner, the upper side and the lower side of the inner wall of the main shell body (1) are fixedly connected with threaded seats (6), the two threaded seats (6) are fastened with the threaded holes (5) through screws, and the water absorption cotton (, one sides of the two water absorption cottons (7) are respectively contacted with one sides of the sealed shell (2) and the back shell (4).
2. The utility model provides a cell-phone shell manufacturing technology with waterproof function which characterized in that: the method specifically comprises the following steps:
s1, selecting raw materials: selecting 8-10 parts of sodium silicate, 10-12 parts of talcum powder, 14-16 parts of hollow glass beads, 10-12 parts of rosin resin, 5.5-7.5 parts of mica powder, 40-50 parts of polyester polyol, 20-30 parts of silica gel and 80-100 parts of organic solvent by weight as units, and placing the components in a single container for later use;
s2, mixing the raw materials: pouring an organic solvent into a reaction kettle, then pouring sodium silicate, talcum powder and hollow glass beads into the reaction kettle to be dissolved in the organic solvent, raising the temperature in the reaction kettle to 200 ℃ through a heating device, and stirring and mixing through a stirring mechanism to form mixed viscous liquid;
s3, raw material plasticizing: at the moment, polyester polyol and silica gel are mixed and heated to 90-100 ℃, the heated raw materials are injected into a double-screw reactor, simultaneously mixed viscous liquid of sodium silicate, talcum powder and hollow glass beads is added into a double-screw extruder, and the mixed materials are subjected to plasticizing reaction in the double-screw reactor;
s4, spray painting and film coating: the material in the S3 is injected into a plastic mobile phone shell with a certain thickness through an injection molding machine, and the formed mobile phone shell is sequentially sprayed with primer and colored paint, and then the surface of the mobile phone shell sprayed with the primer and the colored paint is subjected to vacuum coating for waiting for cooling;
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.
3. The manufacturing process of the mobile phone shell with the waterproof function according to claim 2, characterized in that: the preparation method comprises the following steps of selecting 8 parts of sodium silicate, 10 parts of talcum powder, 14 parts of hollow glass beads, 10 parts of rosin resin, 5.5 parts of mica powder, 40 parts of polyester polyol, 20 parts of silica gel and 80 parts of organic solvent by weight, and placing the materials in a single container for later use.
4. The manufacturing process of the mobile phone shell with the waterproof function according to claim 2, characterized in that: the preparation method comprises the following steps of selecting 9 parts of sodium silicate, 11 parts of talcum powder, 15 parts of hollow glass beads, 11 parts of rosin resin, 6.5 parts of mica powder, 45 parts of polyester polyol, 25 parts of silica gel and 90 parts of organic solvent by weight, and placing the materials in a single container for later use.
5. The manufacturing process of the mobile phone shell with the waterproof function according to claim 2, characterized in that: the preparation method comprises the following steps of taking parts by weight as units, selecting 10 parts of sodium silicate, 12 parts of talcum powder, 16 parts of hollow glass beads, 12 parts of rosin resin, 7.5 parts of mica powder, 50 parts of polyester polyol, 30 parts of silica gel and 100 parts of organic solvent, and placing the materials in a single container for later use.
6. The manufacturing process of the mobile phone shell with the waterproof function according to claim 2, characterized in that: the organic solvent in the S1 is one or more of methanol, n-propanol, n-butanol, isobutanol and ethylene glycol.
7. The manufacturing process of the mobile phone shell with the waterproof function according to claim 2, characterized in that: the rotating speed of the stirring mechanism in the S2 is 200-300r/min, and the stirring time of the stirring mechanism is 10-20 min.
8. The manufacturing process of the mobile phone shell with the waterproof function according to claim 2, characterized in that: the spraying process condition of the S4 is that the spraying temperature is 40-50 ℃, and the leveling time is 3 minutes under the condition of 40-50 ℃.
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| CN111556186A (en) * | 2020-06-16 | 2020-08-18 | 东莞市林泽通讯器材有限公司 | Anti-slip method for mobile phone and mobile phone shell |
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| CN204652473U (en) * | 2015-06-16 | 2015-09-16 | 吴志卫 | A kind of easy-to-dismount waterproof mobile phone shell |
| CN206100154U (en) * | 2016-10-21 | 2017-04-12 | 东莞市艾利精密五金有限公司 | Waterproof dustproof cell -phone shell |
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| CN206499056U (en) * | 2017-03-01 | 2017-09-19 | 深圳市游易工艺制品有限公司 | A kind of waterproof mobile phone protective case |
| CN111548460A (en) * | 2020-05-19 | 2020-08-18 | 广东合胜实业股份有限公司 | Manufacturing process of building environment-friendly waterproof material |
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