CN111070536A - Manufacturing process of automobile data recorder shell - Google Patents

Manufacturing process of automobile data recorder shell Download PDF

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Publication number
CN111070536A
CN111070536A CN201911357271.1A CN201911357271A CN111070536A CN 111070536 A CN111070536 A CN 111070536A CN 201911357271 A CN201911357271 A CN 201911357271A CN 111070536 A CN111070536 A CN 111070536A
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CN
China
Prior art keywords
shell
polishing
treatment
compression molding
data recorder
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CN201911357271.1A
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Chinese (zh)
Inventor
徐怀修
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Shenzhen Luzhuo Technology Co ltd
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Shenzhen Luzhuo Technology Co ltd
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Priority to CN201911357271.1A priority Critical patent/CN111070536A/en
Publication of CN111070536A publication Critical patent/CN111070536A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/58—Measuring, controlling or regulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/52—Heating or cooling
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D3/00—Electroplating: Baths therefor
    • C25D3/02—Electroplating: Baths therefor from solutions
    • C25D3/38—Electroplating: Baths therefor from solutions of copper
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • C25D5/48—After-treatment of electroplated surfaces
    • C25D5/50—After-treatment of electroplated surfaces by heat-treatment
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • C25D5/54—Electroplating of non-metallic surfaces
    • C25D5/56—Electroplating of non-metallic surfaces of plastics
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D7/00—Electroplating characterised by the article coated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/58—Measuring, controlling or regulating
    • B29C2043/5808—Measuring, controlling or regulating pressure or compressing force
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/58—Measuring, controlling or regulating
    • B29C2043/5816—Measuring, controlling or regulating temperature

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

The invention relates to a manufacturing process of a shell of a vehicle event data recorder, which specifically comprises the following process steps: s1, compression molding: pouring the molten material into a mold for compression molding treatment, wherein the mold temperature is 65-80 ℃, the compression molding temperature is 210-240 ℃, the compression molding time is 15-30s, and the compression molding pressure is 650-950bar, so as to prepare a compression molding shell; s2, cooling treatment: cooling the compression-molded shell at room temperature for 24 hours, and preparing a shell preform after the compression-molded shell is molded; s3, polishing treatment: polishing the shell preform, wherein the polishing comprises two procedures of rough polishing and fine polishing, and the polishing time of each procedure is 5-15s, so as to obtain a polished shell; s4, electroplating treatment: electroplating the polished shell to obtain an electroplated shell; s5, annealing treatment: placing the electroplating shell at 85-105 ℃ and preserving heat for 1.5-2h to prepare an annealing shell; s6, passivation treatment: passivating the annealed shell to obtain a passivated shell; s7, post-processing: and (4) placing the passivated shell in an oven at the temperature of 100-120 ℃ for drying for 3-5h to obtain a shell finished product. The automobile data recorder shell has the effect of improving the heat resistance of the automobile data recorder shell.

Description

Manufacturing process of automobile data recorder shell
Technical Field
The invention relates to the technical field of vehicle-mounted equipment, in particular to a manufacturing process of a shell of a vehicle event data recorder.
Background
The driving recorder is an instrument for recording the image and sound of the vehicle during driving. After the automobile data recorder is installed, the video images and the sound of the whole automobile driving process can be recorded, and evidence can be provided for traffic accidents. People who like self-driving tour can also use it to record the process of overcoming difficult obstructions. The driving recorder is equivalent to a black box, and the time, the speed and the position are recorded in the video while the vehicle is driven. The automobile data recorder can also be used for household DV shooting life pleasure or household monitoring. And when the automobile data recorder is installed, the video data can not be cut, and if the video data is cut, help can not be provided after a responsibility accident happens.
A vehicle event recorder typically includes a housing, a circuit board located inside the housing, a battery for powering the circuit board, and a lens assembly electrically connected to the circuit board. The shell is used for cladding circuit assembly wherein on the one hand, plays the insulating effect, and on the other hand is convenient for be connected with the rear-view mirror in the car for the vehicle event data recorder is installed in the below of rear-view mirror.
Because vehicle event data recorder is installed in the below of inside rear-view mirror usually, when the weather is hot, sunshine can penetrate directly on vehicle event data recorder's casing, when vehicle event data recorder's casing was shone for a long time, can produce the problem of sending out the boiling hot or even unable normal work, and some vehicle event data recorder casings can soften the deformation even. Therefore, how to improve the heat resistance of the automobile data recorder shell is an urgent problem to be solved.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a process for manufacturing a shell of an automobile data recorder, which has the effect of improving the heat resistance of the shell of the automobile data recorder.
The above object of the present invention is achieved by the following technical solutions:
a manufacturing process of a shell of a vehicle event data recorder specifically comprises the following process steps:
s1, compression molding: pouring the molten material into a mold for compression molding treatment, wherein the mold temperature is 65-80 ℃, the compression molding temperature is 210-240 ℃, the compression molding time is 15-30s, and the compression molding pressure is 650-950bar, so as to prepare a compression molding shell;
s2, cooling treatment: cooling the compression-molded shell at room temperature for 24 hours, and preparing a shell preform after the compression-molded shell is molded;
s3, polishing treatment: polishing the shell preform, wherein the polishing comprises two procedures of rough polishing and fine polishing, and the polishing time of each procedure is 5-15s, so as to obtain a polished shell;
s4, electroplating treatment: electroplating the polished shell to obtain an electroplated shell;
s5, annealing treatment: placing the electroplating shell at 85-105 ℃ and preserving heat for 1.5-2h to prepare an annealing shell;
s6, passivation treatment: passivating the annealed shell to obtain a passivated shell;
s7, post-processing: and (4) placing the passivated shell in an oven at the temperature of 100-120 ℃ for drying for 3-5h to obtain a shell finished product.
By adopting the technical scheme, the polishing shell is subjected to electroplating treatment, and a uniform metal film layer is formed on the surface of the polishing shell, and the metal film layer is favorable for enhancing the comprehensive properties of the finished shell product, such as heat resistance, corrosion resistance and the like, and is favorable for improving the thermal stability of the finished shell product;
polishing the shell preform so as to improve the smoothness of the surface of the shell preform, wherein the smoother the surface of the shell is, the more uniform the film layer attached to the electroplating effect is, and the better the electroplating effect is;
the electroplating shell is annealed, so that hydrogen atoms attached to the surface of the electroplating shell can be removed, and the possibility of surface corrosion of the electroplating shell is reduced; the annealing treatment is also beneficial to releasing the internal stress of the shell and increasing the ductility and toughness of the shell, thereby improving the forming effect and the crack resistance of the shell;
the annealing shell is passivated, so that an oxide film is formed on the surface of the annealing shell, the activity of the metal layer is reduced, the metal layer is prevented from being corroded, and the corrosion resistance of the shell finished product is improved.
The present invention in a preferred example may be further configured to: the electroplating main salt solution adopted in the S3 is any one of a copper sulfate solution, a copper chloride solution, a copper acetate solution or a copper tartrate solution.
By adopting the technical scheme, the copper metal film is electroplated on the surface of the polished shell, and the copper has excellent thermal conductivity, so that the dissipation efficiency of heat accumulated on the surface of the shell is improved, the heat dissipation performance of a shell finished product is improved, and the shell is prevented from being heated and deformed after being exposed to sunlight for a long time; the copper also has good corrosion resistance, and is beneficial to improving the corrosion resistance of the shell finished product, thereby prolonging the service life of the shell finished product.
The present invention in a preferred example may be further configured to: the melting material comprises the following components in parts by weight: 75-95 parts of modified ABS material and TiO225-35 parts of polyethylene silicone resin, 15-35 parts of graphite, 10-15 parts of flame retardant, 0.05-0.15 part of antioxidant and 0.03-0.08 part of ultraviolet absorber.
By adopting the technical scheme, the TiO2The flame-retardant polyurethane elastomer has excellent heat resistance, wear resistance and flame retardance, and also has good stability and ultraviolet resistance;
ethyl groups connected with silicon atoms in the siloxane chain have the effects of increasing the solubility of resin and reducing the hardness of the resin, and the polyethyl silicone resin has good compatibility with other components and is easier to be mixed or copolymerized with other organic polymers than silicone resins such as polymethyl silicone resin and the like;
adding TiO into the mixture2Compounding with polyethyl silicone resin to mutually compensate the defects of each other, and adding TiO2The polyethylene silicone resin is added into the components, so that comprehensive rationalization performances such as heat resistance, wear resistance and flame retardance of the shell finished product are improved, and normal use of the plum recorder in a high-temperature state is ensured;
the graphite is one of the minerals with the strongest heat resistance, has good heat conductivity and toughness, is beneficial to improving the heat resistance and heat dissipation performance of the finished shell product when being added into the components, and simultaneously reduces the possibility of cracking of the finished shell product in the long-term use process.
The present invention in a preferred example may be further configured to: the modified ABS material is an ABS/PC/carbon fiber compound.
By adopting the technical scheme, the ABS material has good fluidity and good formability; the PC material has good strength performance and heat resistance; the carbon fiber has the characteristics of high temperature resistance, friction resistance, corrosion resistance and the like, and also has high modulus and high strength; the ABS/PC/carbon fiber compound is used as a main material of the components, and is beneficial to improving multiple physical and chemical properties such as heat resistance of a shell finished product.
The present invention in a preferred example may be further configured to: the components also comprise 10-20 parts of zinc-aluminum alloy powder.
By adopting the technical scheme, the addition of the zinc-aluminum alloy powder is beneficial to enhancing the strength performance and the heat conductivity of the finished shell product, so that the dissipation speed of heat accumulated on the surface of the finished shell product is increased; the zinc-aluminum alloy is beneficial to reducing the possibility of generating pits and bubbles on the surface of the electroplating shell, thereby improving the quality of the electroplated metal film.
The present invention in a preferred example may be further configured to: the flame retardant is tributyl phosphate.
The present invention in a preferred example may be further configured to: the antioxidant is antioxidant 168 or antioxidant 1076.
By adopting the technical scheme, the antioxidant 168 and the antioxidant 1076 have good compatibility with resin products, and compared with other antioxidants, the antioxidant 168 and the antioxidant 1076 have the function of preventing the molten material from being thermally degraded in the compression molding process, so that the shell preform is ensured to keep the original mechanical property and aging resistance, and therefore, one of the antioxidant 168 and the antioxidant 1076 is selected as the antioxidant of the shell finished product.
The present invention in a preferred example may be further configured to: the ultraviolet absorbent is UV326 or UV 360.
By adopting the technical scheme, the UV326 and the UV360 both have good thermal stability and light absorption, the volatility and toxic side effect of the product are small, and the UV326 and the UV360 have better compatibility with the modified ABS material compared with other ultraviolet absorbers, so that one of the UV326 and the UV360 is selected to be used as the ultraviolet absorber of the shell finished product.
The present invention in a preferred example may be further configured to: the preparation method of the molten material comprises the following steps: the modified ABS material, TiO 2-polyethyl silicone resin, graphite and zinc-aluminum alloy powder are put into an internal mixer for internal mixing for 10-15min at the temperature of 180-200 ℃; and then putting the flame retardant, the antioxidant and the ultraviolet absorber into an internal mixer for continuous internal mixing for 5-10min to prepare molten material.
In summary, the invention includes at least one of the following beneficial technical effects:
1. the preformed shell product is subjected to polishing, electroplating, annealing, passivation and other treatment, so that the heat resistance of the finished shell product is improved;
2. electroplating a layer of copper metal film, thereby improving the dissipation efficiency of heat accumulated on the surface of the shell, improving the heat dissipation performance of the finished shell product and avoiding the shell from being heated and deformed after being exposed to sunlight for a long time;
3. adding TiO into the mixture2The polyethylene silicone resin is added into the components, so that comprehensive rationalization performances such as heat resistance, wear resistance and flame retardance of the shell finished product are improved, and normal use of the plum recorder in a high-temperature state is ensured;
and 4, the ABS/PC/carbon fiber compound is used as a main material of the components, so that the improvement of multiple physical and chemical properties such as heat resistance of the shell finished product is facilitated.
Drawings
FIG. 1 is a schematic flow chart of the preparation process in this example.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Embodiment 1 is a manufacturing process of a vehicle event data recorder shell, which specifically includes the following process steps:
s1, compression molding: pouring the molten material into a mold for compression molding treatment, wherein the mold temperature is 75 ℃, the compression molding temperature is 235 ℃, the compression molding time is 20s, and the compression molding pressure is 800bar to prepare a compression molding shell;
s2, cooling treatment: cooling the compression-molded shell at room temperature for 24 hours, and preparing a shell preform after the compression-molded shell is molded;
s3, polishing treatment: polishing the shell preform, wherein the polishing comprises two procedures of rough polishing and fine polishing, and the polishing time of each procedure is 10s, so as to obtain a polished shell;
s4, electroplating treatment: electroplating the polished shell by using a copper acetate solution to obtain an electroplated shell;
s5, annealing treatment: placing the electroplating shell at 100 ℃ and keeping the temperature for 2h to prepare an annealing shell;
s6, passivation treatment: passivating the annealed shell to obtain a passivated shell;
s7, post-processing: placing the passivated shell in an oven at 120 ℃ for drying for 4h to obtain a shell finished product;
the melting material comprises the following components in parts by weight:
components Parts by weight Components Parts by weight
ABS/PC/carbon fiber compound 85 Phosphoric acid tributyl ester 12.5
TiO2-polyethyl silicone resin 30 Antioxidant 168 0.1
Graphite (II) 25 UV326 0.05
Zinc-aluminum alloy powder 15
The preparation method of the molten material comprises the following steps: modified ABS material and TiO2Polyethylene silicone resin, graphite and zinc-aluminum alloy powder are put into an internal mixer to be mixed for 15min, and the mixing temperature is 180 ℃; and then adding tributyl phosphate, an antioxidant 168 and UV326 into the internal mixer to carry out internal mixing for 8min, thus obtaining molten material.
Embodiment 2 is a manufacturing process of a vehicle event data recorder shell, which specifically includes the following process steps:
s1, compression molding: pouring the molten material into a mold for compression molding treatment, wherein the mold temperature is 65 ℃, the compression molding temperature is 210 ℃, the compression molding time is 30s, and the compression molding pressure is 650bar to obtain a compression molding shell;
s2, cooling treatment: cooling the compression-molded shell at room temperature for 24 hours, and preparing a shell preform after the compression-molded shell is molded;
s3, polishing treatment: polishing the shell preform, wherein the polishing comprises two procedures of rough polishing and fine polishing, and the polishing time of each procedure is 10s, so as to obtain a polished shell;
s4, electroplating treatment: electroplating the polished shell by using a copper acetate solution to obtain an electroplated shell;
s5, annealing treatment: placing the electroplating shell at 85 ℃ and keeping the temperature for 2h to prepare an annealing shell;
s6, passivation treatment: passivating the annealed shell to obtain a passivated shell;
s7, post-processing: placing the passivated shell in an oven at 120 ℃ for drying for 4h to obtain a shell finished product;
the composition and preparation of the melt were the same as in example 1.
Embodiment 3 is a manufacturing process of a vehicle event data recorder shell, which specifically includes the following process steps:
s1, compression molding: pouring the molten material into a mold for compression molding treatment, wherein the mold temperature is 80 ℃, the compression molding temperature is 240 ℃, the compression molding time is 15s, and the compression molding pressure is 950bar to prepare a compression molding shell;
s2, cooling treatment: cooling the compression-molded shell at room temperature for 24 hours, and preparing a shell preform after the compression-molded shell is molded;
s3, polishing treatment: polishing the shell preform, wherein the polishing comprises two procedures of rough polishing and fine polishing, and the polishing time of each procedure is 10s, so as to obtain a polished shell;
s4, electroplating treatment: electroplating the polished shell by using a copper acetate solution to obtain an electroplated shell;
s5, annealing treatment: placing the electroplating shell at 105 ℃ and preserving heat for 2h to obtain an annealing shell;
s6, passivation treatment: passivating the annealed shell to obtain a passivated shell;
s7, post-processing: placing the passivated shell in an oven at 120 ℃ for drying for 4h to obtain a shell finished product;
the composition and preparation of the melt were the same as in example 1.
Embodiment 4 is a manufacturing process of a vehicle event data recorder shell, which specifically includes the following process steps:
s1, compression molding: pouring the molten material into a mold for compression molding treatment, wherein the mold temperature is 75 ℃, the compression molding temperature is 240 ℃, the compression molding time is 20s, and the compression molding pressure is 900bar to prepare a compression molding shell;
s2, cooling treatment: cooling the compression-molded shell at room temperature for 24 hours, and preparing a shell preform after the compression-molded shell is molded;
s3, polishing treatment: polishing the shell preform, wherein the polishing comprises two procedures of rough polishing and fine polishing, and the polishing time of each procedure is 10s, so as to obtain a polished shell;
s4, electroplating treatment: electroplating the polished shell by using a copper acetate solution to obtain an electroplated shell;
s5, annealing treatment: placing the electroplating shell at 90 ℃ and keeping the temperature for 2h to prepare an annealing shell;
s6, passivation treatment: passivating the annealed shell to obtain a passivated shell;
s7, post-processing: placing the passivated shell in an oven at 120 ℃ for drying for 4h to obtain a shell finished product;
the composition and preparation of the melt were the same as in example 1.
Embodiment 5 is a manufacturing process of a vehicle event data recorder shell, which is disclosed by the invention, and the specific process steps are the same as those of embodiment 1;
the melting material comprises the following components in parts by weight:
components Parts by weight Components Parts by weight
ABS/PC/carbon fiber compound 75 Phosphoric acid tributyl ester 10
TiO2-polyethyl silicone resin 25 Antioxidant 168 0.05
Graphite (II) 15 UV326 0.03
Zinc-aluminum alloy powder 10
The melt was prepared in the same manner as in example 1.
Embodiment 6 is a manufacturing process of a vehicle event data recorder shell, which is disclosed by the invention, and the specific process steps are the same as those in embodiment 1;
the melting material comprises the following components in parts by weight:
components Parts by weight Components Parts by weight
ABS/PC/carbon fiber compound 95 Phosphoric acid tributyl ester 15
TiO2-polyethyl silicone resin 35 Antioxidant 168 0.15
Graphite (II) 35 UV326 0.08
Zinc-aluminum alloy powder 20
The melt was prepared in the same manner as in example 1.
Comparative example 1, the manufacturing process of the automobile data recorder shell disclosed by the invention specifically comprises the following process steps:
s1, compression molding: pouring the molten material into a mold for compression molding treatment, wherein the mold temperature is 75 ℃, the compression molding temperature is 235 ℃, the compression molding time is 20s, and the compression molding pressure is 800bar to prepare a compression molding shell;
s2, cooling treatment: cooling the compression-molded shell at room temperature for 24 hours, and preparing a shell preform after the compression-molded shell is molded;
s3, polishing treatment: polishing the shell preform, wherein the polishing comprises two procedures of rough polishing and fine polishing, and the polishing time of each procedure is 10s, so as to obtain a polished shell;
s4, annealing treatment: placing the polished shell at 100 ℃ and preserving heat for 2h to obtain an annealed shell;
s5, post-processing: placing the passivated shell in an oven at 120 ℃ for drying for 4h to obtain a shell finished product;
the composition and preparation of the melt were the same as in example 1.
Comparative example 2, the invention discloses a manufacturing process of a vehicle event data recorder shell, which specifically comprises the following process steps:
s1, compression molding: pouring the molten material into a mold for compression molding treatment, wherein the mold temperature is 75 ℃, the compression molding temperature is 235 ℃, the compression molding time is 20s, and the compression molding pressure is 800bar to prepare a compression molding shell;
s2, cooling treatment: cooling the compression-molded shell at room temperature for 24 hours, and preparing a shell preform after the compression-molded shell is molded;
s3, electroplating treatment: electroplating the shell preform by using a copper acetate solution to obtain an electroplated shell;
s4, annealing treatment: placing the electroplating shell at 100 ℃ and keeping the temperature for 2h to prepare an annealing shell;
s5, passivation treatment: passivating the annealed shell to obtain a passivated shell;
s6, post-processing: placing the passivated shell in an oven at 120 ℃ for drying for 4h to obtain a shell finished product;
the composition and preparation of the melt were the same as in example 1.
Comparative example 3, for the manufacturing process of the automobile data recorder shell disclosed by the invention, the manufacturing process specifically comprises the following process steps:
s1, compression molding: pouring the molten material into a mold for compression molding treatment, wherein the mold temperature is 75 ℃, the compression molding temperature is 235 ℃, the compression molding time is 20s, and the compression molding pressure is 800bar to prepare a compression molding shell;
s2, cooling treatment: cooling the compression-molded shell at room temperature for 24 hours, and preparing a shell preform after the compression-molded shell is molded;
s3, polishing treatment: polishing the shell preform, wherein the polishing comprises two procedures of rough polishing and fine polishing, and the polishing time of each procedure is 10s, so as to obtain a polished shell;
s4, electroplating treatment: electroplating the polished shell by using a copper acetate solution to obtain an electroplated shell;
s5, passivation treatment: passivating the electroplating shell to obtain a passivated shell;
s6, post-processing: placing the passivated shell in an oven at 120 ℃ for drying for 4h to obtain a shell finished product;
the composition and preparation of the melt were the same as in example 1.
Comparative example 4, the process for manufacturing the automobile data recorder shell disclosed by the invention has the same specific process steps as example 1;
the melting material comprises the following components in parts by weight:
components Parts by weight Components Parts by weight
ABS/PC/carbon fiber compound 85 Phosphoric acid tributyl ester 12.5
TiO2-polyethyl silicone resin 0 Antioxidant 168 0.1
Graphite (II) 25 UV326 0.05
Zinc-aluminum alloy powder 15
The preparation method of the molten material comprises the following steps: adding the modified ABS material, graphite and zinc-aluminum alloy powder into an internal mixer to be mixed for 15min, wherein the mixing temperature is 180 ℃; and then adding tributyl phosphate, an antioxidant 168 and UV326 into the internal mixer to carry out internal mixing for 8min, thus obtaining molten material.
Comparative example 5, the process for manufacturing the automobile data recorder shell disclosed by the invention has the same specific process steps as example 1;
the melting material comprises the following components in parts by weight:
components Parts by weight Components Parts by weight
ABS/PC/carbon fiber compound 85 Phosphoric acid tributyl ester 12.5
TiO2-polyethyl silicone resin 30 Antioxidant 168 0.1
Graphite (II) 25 UV326 0.05
Zinc-aluminum alloy powder 0
The preparation method of the molten material comprises the following steps: mixing ABS/PC compound and TiO2Polyethylene silicone resin and graphite are put into an internal mixer to be mixed for 15min, and the mixing temperature is 180 ℃; and then adding tributyl phosphate, an antioxidant 168 and UV326 into the internal mixer to carry out internal mixing for 8min, thus obtaining molten material.
Performance test
The finished shells prepared from the formulations and processes of examples 1-6 and comparative examples 1-5 were sampled and the samples were tested for the following properties.
And (3) detecting heat resistance: the Vicat softening temperature of the samples was measured according to GB/T1633-2000 and the results are reported in Table 1.
Detecting the working performance of the instrument after exposure: detecting the working performance of the instrument body after the instrument body is exposed for 2h, 4h and 6h, grading the working performance of the instrument body, and recording as grade 1 if the instrument body works normally; if a small amount of screens appear on the surface of the lens of the instrument body, but the work is not influenced, and the screen is marked as level 2; if the area of the screen on the surface of the lens of the instrument body exceeds 50 percent, the instrument body can still work and is marked as 3 grade; if the surface of the lens of the instrument body is black, the instrument body cannot work normally and is marked as 4 grades; and the results of the test are recorded in table 2.
TABLE 1 Heat resistance test data of samples
Sample (I) Vicat softening temperature/. degree C
Example 1 136.7
Example 2 129.6
Example 3 132.4
Example 4 130.9
Example 5 135.5
Example 6 136.1
Comparative example 1 112.7
Comparative example 2 128.4
Comparative example 3 130.2
Comparative example 4 127.7
Comparative example 5 124.5
From the data of the samples tested in examples 1-4 of Table 1, it can be seen that: parameters in the preparation process are controlled within a proper range, and the Vicat softening point of the sample is maintained within a higher range, which indicates that the heat resistance of the sample is better; in 4 groups of examples, the preparation process parameters in example 1 are the best examples.
From the sample test data of example 1 and examples 5 to 6 in table 1, it can be seen that: the component proportion of the molten material is controlled within a proper range, and the Vicat softening point of the sample is maintained within a higher range, which indicates that the heat resistance of the sample is better; in 3 groups of examples, the preparation process parameters in example 1 are the best examples.
According to the sample detection data of example 1 and comparative example 1 in table 1, it can be seen that: the electroplating treatment and the passivation treatment have the function of obviously improving the heat resistance of the sample.
According to the sample detection data of example 1 and comparative example 2 in table 1, it can be seen that: the polishing treatment has the effect of improving the heat resistance of the sample.
According to the sample detection data of example 1 and comparative example 3 in table 1, it can be seen that: the annealing treatment has the effect of improving the heat resistance of the sample.
According to the sample detection data of example 1 and comparative example 4 in table 1, it can be seen that: TiO22The polyethyl silicone resin has the effect of improving the heat resistance of the sample.
According to the sample detection data of example 1 and comparative example 5 in table 1, it can be seen that: the zinc-aluminum alloy powder has the function of improving the heat resistance of the sample.
TABLE 2 working Performance test data for samples
Sample (I) Performance of insolation 2h instrument Performance of insolation 4h instrument Performance of 6h instrument body
Example 1 1 1 1
Example 2 1 1 2
Example 3 1 1 1
Example 4 1 1 2
Example 5 1 1 2
Example 6 1 1 1
Comparative example 1 2 2 4
Comparative example 2 1 1 2
Comparative example 3 1 2 3
Comparative example 4 1 2 3
Comparative example 5 1 2 3
From the sample test data of examples 1-6, it can be seen that: after the instrument body is exposed for 2 hours and 4 hours, the preparation process parameters of the sample and the component distribution of the melting material do not influence the performance of the instrument body; however, after the instrument body is exposed for 6 hours, the preparation process parameters of the sample and the component proportion of the melting material can influence the working performance of the instrument body;
according to the sample detection data of the example 1 and the comparative example 1, the following results can be obtained: the electroplating treatment and the passivation treatment are beneficial to improving the heat resistance of the sample, thereby prolonging the time of instrument body failure under the insolation environment.
According to the sample detection data of the example 1 and the comparative example 2, the following results are obtained: the polishing treatment is beneficial to improving the heat resistance of the sample, so that the time of the sample in the instrument failure in the insolation environment is prolonged, but the effect of the polishing treatment on the heat resistance of the sample is not as good as the effect of the electroplating treatment and the passivation treatment on the heat resistance of the sample.
According to the sample detection data of the example 1 and the comparative example 3, the following results can be obtained: the annealing treatment is beneficial to improving the heat resistance of the sample, so that the time of the sample in the exposure environment with instrument body failure is prolonged, but the effect of the annealing treatment on the heat resistance of the sample is not as good as that of the electroplating treatment and the passivation treatment on the heat resistance of the sample, but is more remarkable than that of the polishing treatment on the heat resistance of the sample.
According to the sample detection data of the example 1 and the comparative example 4, the following results can be obtained: TiO22The polyethylene silicone resin is beneficial to improving the heat resistance of the sample, thereby prolonging the time for which the sample fails under the insolation environment.
According to the sample detection data of the example 1 and the comparative example 5, the following results can be obtained: the zinc-aluminum alloy powder is beneficial to improving the heat resistance of a sample, thereby prolonging the time of instrument body failure in a insolation environment.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims (9)

1. A manufacturing process of a shell of a vehicle event data recorder specifically comprises the following process steps:
s1, compression molding: pouring the molten material into a mold for compression molding treatment, wherein the mold temperature is 65-80 ℃, the compression molding temperature is 210-240 ℃, the compression molding time is 15-30s, and the compression molding pressure is 650-950bar, so as to prepare a compression molding shell;
s2, cooling treatment: cooling the compression-molded shell at room temperature for 24 hours, and preparing a shell preform after the compression-molded shell is molded;
s3, polishing treatment: polishing the shell preform, wherein the polishing comprises two procedures of rough polishing and fine polishing, and the polishing time of each procedure is 5-15s, so as to obtain a polished shell;
s4, electroplating treatment: electroplating the polished shell to obtain an electroplated shell;
s5, annealing treatment: placing the electroplating shell at 85-105 ℃ and preserving heat for 1.5-2h to prepare an annealing shell;
s6, passivation treatment: passivating the annealed shell to obtain a passivated shell;
s7, post-processing: and (4) placing the passivated shell in an oven at the temperature of 100-120 ℃ for drying for 3-5h to obtain a shell finished product.
2. The process for manufacturing the automobile data recorder shell according to claim 1, wherein the process comprises the following steps: the electroplating main salt solution adopted in the S3 is any one of a copper sulfate solution, a copper chloride solution, a copper acetate solution or a copper tartrate solution.
3. The process for manufacturing the automobile data recorder shell according to claim 1, wherein the process comprises the following steps: the melting material comprises the following components in parts by weight: 75-95 parts of modified ABS material, 25-35 parts of TiO 2-polyethyl silicone resin, 15-35 parts of graphite, 10-15 parts of flame retardant, 0.05-0.15 part of antioxidant and 0.03-0.08 part of ultraviolet absorbent.
4. The process for manufacturing the automobile data recorder shell according to claim 3, wherein the process comprises the following steps: the modified ABS material is an ABS/PC/carbon fiber compound.
5. The process for manufacturing the automobile data recorder shell according to claim 3, wherein the process comprises the following steps: the components also comprise 10-20 parts of zinc-aluminum alloy powder.
6. The process for manufacturing the automobile data recorder shell according to claim 3, wherein the process comprises the following steps: the flame retardant is tributyl phosphate.
7. The process for manufacturing the automobile data recorder shell according to claim 3, wherein the process comprises the following steps: the antioxidant is antioxidant 168 or antioxidant 1076.
8. The process for manufacturing the automobile data recorder shell according to claim 3, wherein the process comprises the following steps: the ultraviolet absorbent is UV326 or UV 360.
9. The process for manufacturing the automobile data recorder shell according to claim 1, wherein the process comprises the following steps: the preparation method of the molten material comprises the following steps: the modified ABS material, TiO 2-polyethyl silicone resin, graphite and zinc-aluminum alloy powder are put into an internal mixer for internal mixing for 10-15min at the temperature of 180-200 ℃; and then putting the flame retardant, the antioxidant and the ultraviolet absorber into an internal mixer for continuous internal mixing for 5-10min to prepare molten material.
CN201911357271.1A 2019-12-25 2019-12-25 Manufacturing process of automobile data recorder shell Pending CN111070536A (en)

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Publication number Priority date Publication date Assignee Title
CN1729233A (en) * 2002-12-20 2006-02-01 纳幕尔杜邦公司 Be used to improve the enriched material of the surperficial adhesion characteristic of polyacetal-based composition and use thereof in packaging
CN101899205A (en) * 2009-05-26 2010-12-01 帝人化成株式会社 Glass fiber-reinforced resin composition
CN101993602A (en) * 2009-08-17 2011-03-30 莱尔德电子材料(深圳)有限公司 Highly thermally-conductive moldable thermoplastic composites and compositions
CN105008588A (en) * 2013-01-08 2015-10-28 罗帕尔欧洲股份公司 Method for producing a metal or non-metal, metal-coated substrate, a metal or non-metal, metal-coated substrate, and use of said substrat

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1729233A (en) * 2002-12-20 2006-02-01 纳幕尔杜邦公司 Be used to improve the enriched material of the surperficial adhesion characteristic of polyacetal-based composition and use thereof in packaging
CN101899205A (en) * 2009-05-26 2010-12-01 帝人化成株式会社 Glass fiber-reinforced resin composition
CN101993602A (en) * 2009-08-17 2011-03-30 莱尔德电子材料(深圳)有限公司 Highly thermally-conductive moldable thermoplastic composites and compositions
CN105008588A (en) * 2013-01-08 2015-10-28 罗帕尔欧洲股份公司 Method for producing a metal or non-metal, metal-coated substrate, a metal or non-metal, metal-coated substrate, and use of said substrat

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