CN114774894A - Die casting surface treatment process based on image monitoring - Google Patents
Die casting surface treatment process based on image monitoring Download PDFInfo
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- CN114774894A CN114774894A CN202210332400.7A CN202210332400A CN114774894A CN 114774894 A CN114774894 A CN 114774894A CN 202210332400 A CN202210332400 A CN 202210332400A CN 114774894 A CN114774894 A CN 114774894A
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- die casting
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- 238000004512 die casting Methods 0.000 title claims abstract description 99
- 238000004381 surface treatment Methods 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000012544 monitoring process Methods 0.000 title claims abstract description 22
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 40
- 238000005498 polishing Methods 0.000 claims abstract description 25
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 20
- 238000005406 washing Methods 0.000 claims abstract description 20
- 238000007747 plating Methods 0.000 claims abstract description 17
- 239000002253 acid Substances 0.000 claims abstract description 15
- 239000000126 substance Substances 0.000 claims abstract description 9
- 238000001035 drying Methods 0.000 claims abstract description 4
- 238000010438 heat treatment Methods 0.000 claims abstract description 4
- 238000005554 pickling Methods 0.000 claims abstract description 4
- 238000004506 ultrasonic cleaning Methods 0.000 claims abstract description 4
- 239000003513 alkali Substances 0.000 claims abstract 3
- 239000000243 solution Substances 0.000 claims description 44
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 12
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 claims description 12
- 238000004140 cleaning Methods 0.000 claims description 10
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 9
- 239000011259 mixed solution Substances 0.000 claims description 9
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 6
- 239000012670 alkaline solution Substances 0.000 claims description 6
- 230000007797 corrosion Effects 0.000 claims description 6
- 238000005260 corrosion Methods 0.000 claims description 6
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 claims description 6
- CDBYLPFSWZWCQE-UHFFFAOYSA-L sodium carbonate Substances [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 230000004913 activation Effects 0.000 claims description 5
- 239000003112 inhibitor Substances 0.000 claims description 4
- 239000003381 stabilizer Substances 0.000 claims description 4
- MIMUSZHMZBJBPO-UHFFFAOYSA-N 6-methoxy-8-nitroquinoline Chemical compound N1=CC=CC2=CC(OC)=CC([N+]([O-])=O)=C21 MIMUSZHMZBJBPO-UHFFFAOYSA-N 0.000 claims description 3
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 claims description 3
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 3
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims description 3
- 239000004327 boric acid Substances 0.000 claims description 3
- 235000015165 citric acid Nutrition 0.000 claims description 3
- 239000012153 distilled water Substances 0.000 claims description 3
- 239000004310 lactic acid Substances 0.000 claims description 3
- 235000014655 lactic acid Nutrition 0.000 claims description 3
- 229910000403 monosodium phosphate Inorganic materials 0.000 claims description 3
- 235000019799 monosodium phosphate Nutrition 0.000 claims description 3
- OGKAGKFVPCOHQW-UHFFFAOYSA-L nickel sulfate heptahydrate Chemical compound O.O.O.O.O.O.O.[Ni+2].[O-]S([O-])(=O)=O OGKAGKFVPCOHQW-UHFFFAOYSA-L 0.000 claims description 3
- 239000001632 sodium acetate Substances 0.000 claims description 3
- 235000017281 sodium acetate Nutrition 0.000 claims description 3
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 3
- AJPJDKMHJJGVTQ-UHFFFAOYSA-M sodium dihydrogen phosphate Chemical compound [Na+].OP(O)([O-])=O AJPJDKMHJJGVTQ-UHFFFAOYSA-M 0.000 claims description 3
- 239000001488 sodium phosphate Substances 0.000 claims description 3
- 229910000162 sodium phosphate Inorganic materials 0.000 claims description 3
- 235000011008 sodium phosphates Nutrition 0.000 claims description 3
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 claims description 3
- 229910000861 Mg alloy Inorganic materials 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 4
- 239000003344 environmental pollutant Substances 0.000 abstract description 3
- 239000012535 impurity Substances 0.000 abstract description 3
- 231100000719 pollutant Toxicity 0.000 abstract description 3
- 230000003213 activating effect Effects 0.000 abstract 2
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000005282 brightening Methods 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- CMGDVUCDZOBDNL-UHFFFAOYSA-N 4-methyl-2h-benzotriazole Chemical group CC1=CC=CC2=NNN=C12 CMGDVUCDZOBDNL-UHFFFAOYSA-N 0.000 description 1
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- IYKVLICPFCEZOF-UHFFFAOYSA-N selenourea Chemical group NC(N)=[Se] IYKVLICPFCEZOF-UHFFFAOYSA-N 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/18—Pretreatment of the material to be coated
- C23C18/1803—Pretreatment of the material to be coated of metallic material surfaces or of a non-specific material surfaces
- C23C18/1824—Pretreatment of the material to be coated of metallic material surfaces or of a non-specific material surfaces by chemical pretreatment
- C23C18/1837—Multistep pretreatment
- C23C18/1844—Multistep pretreatment with use of organic or inorganic compounds other than metals, first
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D31/00—Cutting-off surplus material, e.g. gates; Cleaning and working on castings
- B22D31/002—Cleaning, working on castings
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/1601—Process or apparatus
- C23C18/1619—Apparatus for electroless plating
- C23C18/1628—Specific elements or parts of the apparatus
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/1601—Process or apparatus
- C23C18/1633—Process of electroless plating
- C23C18/1675—Process conditions
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/18—Pretreatment of the material to be coated
- C23C18/1803—Pretreatment of the material to be coated of metallic material surfaces or of a non-specific material surfaces
- C23C18/1806—Pretreatment of the material to be coated of metallic material surfaces or of a non-specific material surfaces by mechanical pretreatment, e.g. grinding, sanding
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/31—Coating with metals
- C23C18/32—Coating with nickel, cobalt or mixtures thereof with phosphorus or boron
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/04—Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors
- C23G1/06—Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors organic inhibitors
- C23G1/063—Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors organic inhibitors heterocyclic compounds
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/12—Light metals
- C23G1/125—Light metals aluminium
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/14—Cleaning or pickling metallic material with solutions or molten salts with alkaline solutions
- C23G1/22—Light metals
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Inorganic Chemistry (AREA)
- ing And Chemical Polishing (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The invention discloses a die casting surface treatment process based on image monitoring, which comprises the following steps of: s01: polishing the die casting; s02: carrying out ultrasonic cleaning on the die casting; s03: heating and alkali washing a die casting; s04: pickling a die casting; s05: activating a die casting; s06: chemical nickel plating of the die casting; s07: detecting the surface morphology of the die casting by using a camera; s08: and (3) drying the die casting, wherein the surface treatment process adopts alkali washing, acid washing and activating surface treatment modes. Can carry out comprehensive and efficient clearance operation to the pollutant and the impurity on magnesium alloy die casting surface to combine the real-time image dynamic monitoring of camera, ensure die casting surface treatment effect and high quality, improve the self compactness of die casting, also realize stable combination effect between magnesium alloy die casting and the nickel plating material, very big improvement die casting surface treatment's quality.
Description
Technical Field
The invention relates to the technical field of die casting surface treatment, in particular to a die casting surface treatment process based on image monitoring.
Background
A die casting is a part cast by pressure, which is a mechanical die casting machine for casting the die of casting, and features that the molten copper, zinc, aluminium or aluminium alloy is poured into the inlet of die casting machine, and the die-cast part is shaped and sized by said die casting machine Descaling, etc., and after the magnesium alloy die casting is formed, chemical nickel plating treatment is required by the surface treatment industry to improve the quality and strength of the magnesium alloy die casting.
The existing die casting surface treatment process cannot dynamically monitor the surface treatment state of the die casting in real time, cannot accurately and comprehensively know the surface treatment state of the die casting, and is not beneficial to the chemical nickel plating treatment of the magnesium alloy die casting.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a die casting surface treatment process based on image monitoring, which ensures that a magnesium alloy die casting is subjected to high-efficiency and high-quality surface treatment in a real-time dynamic image monitoring mode by using a camera.
In order to achieve the purpose, the invention adopts the following technical scheme: a die casting surface treatment process based on image monitoring comprises the following steps:
s01: polishing the die casting by adopting a combined polishing mode;
s02: cleaning the die casting by using an ultrasonic acetone solution;
s03: putting the die casting into an alkaline solution for heating and alkaline washing;
s04: putting the die casting into an acid solution for pickling;
s05: putting the die casting into a weak acid solution for activation;
s06: putting the die casting into a nickel plating solution for chemical nickel plating;
s07: detecting the surface morphology of the die casting by using a camera;
s08: and drying the die casting by using hot air equipment.
As a further description of the above technical solution:
in the step S01, the combined polishing mode is a mechanical and manual staggered polishing mode, the mechanical polishing is used for polishing the die castings greatly and largely, and the manual polishing is used for polishing the die castings slightly and largely.
As a further description of the above technical solution:
in step S02, the die casting is put into a cleaning device containing an acetone solution, an ultrasonic generator is provided in the cleaning device, and the oil stains on the surface of the die casting are ultrasonically cleaned by an ultrasonic cleaning method.
As a further description of the above technical solution:
in the step S03, the alkaline solution is a mixed solution of sodium hydroxide, sodium carbonate and sodium phosphate, and is subjected to alkaline washing for 6-8min at the temperature of 80-85 ℃.
As a further description of the above technical solution:
in the step S04, the acid solution is a mixed solution of phosphoric acid, hydrofluoric acid and boric acid, and is subjected to acid cleaning for 50 to 70 seconds at a temperature of 24 to 26 ℃, and simultaneously added with a corrosion inhibitor.
As a further description of the above technical solution:
in the step S05, hydrofluoric acid is dissolved in weak acid and activated for 8min at the temperature of 24-26 ℃.
As a further description of the above technical solution:
in the step S06, the nickel plating solution is a mixed solution of nickel sulfate heptahydrate, sodium dihydrogen phosphate, citric acid, lactic acid, sodium acetate, and ammonium bifluoride, and the nickel is chemically plated for 1 hour at a temperature of 78-82 ℃ and a PH range of 5-6, and simultaneously a stabilizer is added.
As a further description of the above technical solution:
in step S07, the camera captures surface image data of the die casting during and after the operations of steps S01, S02, S03, S04, S05 and S06, so that the surface treatment process of the die casting can be dynamically monitored in real time.
As a further description of the above technical solution:
after the steps S01, S01, S02, S03, S04, S05, and S06, the die cast product needs to be washed by water by being put into a washing solution, and the washing solution is low-temperature distilled water, so that the solution remaining in the previous step can be washed clean.
The invention provides a die casting surface treatment process based on image monitoring. The method has the following beneficial effects:
the surface treatment process adopts the surface treatment modes of alkaline washing, acid washing and activation, can comprehensively and efficiently clean pollutants and impurities on the surface of the magnesium alloy die casting, and combines the real-time image dynamic monitoring of a camera to ensure the surface treatment effect and high quality of the die casting, improve the self compactness of the die casting, also realize the stable combination effect between the magnesium alloy die casting and a nickel plating material, and greatly improve the quality of the surface treatment of the die casting.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments.
A die casting surface treatment process based on image monitoring comprises the following steps:
s01: polishing the die casting by adopting a combined polishing mode;
s02: cleaning the die casting by using an ultrasonic acetone solution;
s03: putting the die casting into an alkaline solution for heating and alkaline washing;
s04: putting the die casting into an acid solution for pickling;
s05: putting the die casting into a weak acid solution for activation;
s06: putting the die casting into a nickel plating solution for chemical nickel plating;
s07: detecting the surface morphology of the die casting by using a camera;
s08: and drying the die casting by utilizing hot air equipment.
The surface treatment process adopts the surface treatment modes of alkaline washing, acid washing and activation, can comprehensively and efficiently clean pollutants and impurities on the surface of the magnesium alloy die casting, and is combined with the real-time image dynamic monitoring of a camera to ensure the surface treatment effect and high quality of the die casting, and improve the high quality of the surface of the magnesium alloy die casting, thereby being beneficial to the chemical nickel plating operation of the follow-up magnesium alloy die casting, improving the self compactness of the die casting, also realizing the stable combination effect between the magnesium alloy die casting and a nickel plating substance, and greatly improving the quality of the surface treatment of the die casting.
In step S01, the combined polishing mode is a mechanical and manual staggered polishing mode, the mechanical polishing is used for polishing the die castings greatly and largely, and the manual polishing is used for polishing the die castings slightly and largely.
In step S02, the die casting is put into a cleaning device containing an acetone solution, an ultrasonic generator is provided in the cleaning device, and the grease on the surface of the die casting is ultrasonically cleaned by using an ultrasonic cleaning method.
In step S03, the alkaline solution is a mixed solution of sodium hydroxide, sodium carbonate and sodium phosphate, and is subjected to alkaline washing at 80-85 ℃ for 6-8 min.
In step S04, the acid solution is a mixed solution of phosphoric acid, hydrofluoric acid and boric acid, and is pickled for 50-70S at 24-26 ℃, and a corrosion inhibitor is added, wherein the corrosion inhibitor is a methyl benzotriazole solution, and is used for slowing down the chemical corrosion rate of the die casting and inhibiting the corrosion phenomenon.
In step S05, the solution is weakly acidic and hydrofluoric acid is activated at 24-26 deg.C for 8 min.
In step S06, the nickel plating solution is a mixed solution of nickel sulfate heptahydrate, sodium dihydrogen phosphate, citric acid, lactic acid, sodium acetate and ammonium bifluoride, and the nickel is chemically plated for 1h at 78-82 ℃ and within the pH5-6 range, and a stabilizer is added at the same time, wherein the stabilizer is a selenourea solution and is used for inhibiting the spontaneous decomposition of the nickel plating solution and playing a role in brightening and brightening.
In step S07, the camera captures surface image data of the die casting during and after the operations of steps S01, S02, S03, S04, S05, and S06, thereby performing dynamic real-time image monitoring of the surface treatment process of the die casting.
After steps S01, S01, S02, S03, S04, S05, and S06, the die casting needs to be put into a washing solution for washing with water, and the washing solution is low-temperature distilled water, so that the solution remaining in the previous step of the die casting can be washed clean.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered as the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (9)
1. A die casting surface treatment process based on image monitoring is characterized by comprising the following steps:
s01: polishing the die casting by adopting a combined polishing mode;
s02: cleaning the die casting by using an ultrasonic acetone solution;
s03: putting the die casting into an alkaline solution for heating and alkaline washing;
s04: putting the die casting into an acid solution for pickling;
s05: putting the die casting into a weak acid solution for activation;
s06: putting the die casting into a nickel plating solution for chemical nickel plating;
s07: detecting the surface morphology of the die casting by using a camera;
s08: and drying the die casting by using hot air equipment.
2. The die casting surface treatment process based on image monitoring as claimed in claim 1, wherein: in the step S01, the combined polishing mode is a mechanical and manual staggered polishing mode, the mechanical polishing is used for large-scale and large-area polishing of the die castings, and the manual polishing is used for small-scale and small-area polishing of the die castings.
3. The die casting surface treatment process based on image monitoring as claimed in claim 1, wherein: in step S02, the die casting is put into a cleaning device containing an acetone solution, an ultrasonic generator is provided in the cleaning device, and the oil stains on the surface of the die casting are ultrasonically cleaned by an ultrasonic cleaning method.
4. The die casting surface treatment process based on image monitoring as claimed in claim 1, wherein: in the step S03, the alkaline solution is a mixed solution of sodium hydroxide, sodium carbonate and sodium phosphate, and the alkali washing is carried out for 6-8min at the temperature of 80-85 ℃.
5. The die casting surface treatment process based on image monitoring as claimed in claim 1, wherein: in the step S04, the acid solution is a mixed solution of phosphoric acid, hydrofluoric acid and boric acid, and is pickled for 50-70S at the temperature of 24-26 ℃, and simultaneously the corrosion inhibitor is added.
6. The die casting surface treatment process based on image monitoring as claimed in claim 1, wherein: in the step S05, hydrofluoric acid is dissolved in weak acid and activated for 8min at the temperature of 24-26 ℃.
7. The die casting surface treatment process based on image monitoring as claimed in claim 1, wherein: in the step S06, the nickel plating solution is a mixed solution of nickel sulfate heptahydrate, sodium dihydrogen phosphate, citric acid, lactic acid, sodium acetate, and ammonium bifluoride, and the nickel is chemically plated for 1 hour at a temperature of 78-82 ℃ and a PH range of 5-6, and simultaneously a stabilizer is added.
8. The die casting surface treatment process based on image monitoring as claimed in claim 1, wherein: in step S07, the camera captures surface image data of the die casting during and after the operations of steps S01, S02, S03, S04, S05 and S06, so that the surface treatment process of the die casting can be dynamically monitored in real time.
9. The die casting surface treatment process based on image monitoring as claimed in claim 1, wherein: after the steps S01, S01, S02, S03, S04, S05, and S06, the die cast product needs to be washed by water by being put into a washing solution, and the washing solution is low-temperature distilled water, so that the solution remaining in the previous step can be washed clean.
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Citations (4)
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| CN103805956A (en) * | 2014-02-27 | 2014-05-21 | 苏州大学 | In-situ morphology and optical performance monitoring evaporation source and vacuum deposition equipment |
| CN104911569A (en) * | 2015-04-07 | 2015-09-16 | 昆山力盟机械工业有限公司 | Surface treatment technology for magnesium alloy computer casing |
| CN104928663A (en) * | 2015-04-28 | 2015-09-23 | 华南理工大学 | Chromium-free chemical conversion treatment method for magnesium alloy surface |
| CN105887056A (en) * | 2016-04-25 | 2016-08-24 | 中国科学院兰州化学物理研究所 | Chemical nickel plating method for surface of magnesium alloy |
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Patent Citations (4)
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|---|---|---|---|---|
| CN103805956A (en) * | 2014-02-27 | 2014-05-21 | 苏州大学 | In-situ morphology and optical performance monitoring evaporation source and vacuum deposition equipment |
| CN104911569A (en) * | 2015-04-07 | 2015-09-16 | 昆山力盟机械工业有限公司 | Surface treatment technology for magnesium alloy computer casing |
| CN104928663A (en) * | 2015-04-28 | 2015-09-23 | 华南理工大学 | Chromium-free chemical conversion treatment method for magnesium alloy surface |
| CN105887056A (en) * | 2016-04-25 | 2016-08-24 | 中国科学院兰州化学物理研究所 | Chemical nickel plating method for surface of magnesium alloy |
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