US20210047746A1 - Home appliance including hairline and manufacturing method thereof - Google Patents
Home appliance including hairline and manufacturing method thereof Download PDFInfo
- Publication number
- US20210047746A1 US20210047746A1 US17/043,865 US201817043865A US2021047746A1 US 20210047746 A1 US20210047746 A1 US 20210047746A1 US 201817043865 A US201817043865 A US 201817043865A US 2021047746 A1 US2021047746 A1 US 2021047746A1
- Authority
- US
- United States
- Prior art keywords
- plating layer
- hairline
- home appliance
- base material
- manufacturing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Images
Classifications
-
- 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
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/02—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material
-
- 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
- C25D5/10—Electroplating with more than one layer of the same or of different metals
- C25D5/12—Electroplating with more than one layer of the same or of different metals at least one layer being of nickel or chromium
-
- 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
- C23C30/00—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
- C23C30/005—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process on hard metal substrates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
- B05D7/16—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies using synthetic lacquers or varnishes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B29/00—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B29/00—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents
- B24B29/005—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents using brushes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/01—Layered products comprising a layer of metal all layers being exclusively metallic
-
- 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
- C23C30/00—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
-
- 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
- C25D5/10—Electroplating with more than one layer of the same or of different metals
- C25D5/12—Electroplating with more than one layer of the same or of different metals at least one layer being of nickel or chromium
- C25D5/14—Electroplating with more than one layer of the same or of different metals at least one layer being of nickel or chromium two or more layers being of nickel or chromium, e.g. duplex or triplex layers
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2202/00—Metallic substrate
- B05D2202/20—Metallic substrate based on light metals
- B05D2202/25—Metallic substrate based on light metals based on Al
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2350/00—Pretreatment of the substrate
- B05D2350/30—Change of the surface
- B05D2350/33—Roughening
- B05D2350/38—Roughening by mechanical means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2350/00—Pretreatment of the substrate
- B05D2350/60—Adding a layer before coating
- B05D2350/65—Adding a layer before coating metal layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/06—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation
- B05D3/061—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation using U.V.
- B05D3/065—After-treatment
- B05D3/067—Curing or cross-linking the coating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/12—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by mechanical means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
- B05D5/08—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain an anti-friction or anti-adhesive surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
- B05D5/08—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain an anti-friction or anti-adhesive surface
- B05D5/083—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain an anti-friction or anti-adhesive surface involving the use of fluoropolymers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12736—Al-base component
- Y10T428/1275—Next to Group VIII or IB metal-base component
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12771—Transition metal-base component
- Y10T428/12806—Refractory [Group IVB, VB, or VIB] metal-base component
- Y10T428/12826—Group VIB metal-base component
- Y10T428/12847—Cr-base component
- Y10T428/12854—Next to Co-, Fe-, or Ni-base component
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12771—Transition metal-base component
- Y10T428/12861—Group VIII or IB metal-base component
- Y10T428/12903—Cu-base component
- Y10T428/1291—Next to Co-, Cu-, or Ni-base component
Definitions
- the present disclosure relates to a home appliance including a hairline and a manufacturing method thereof, and more particularly, to a home appliance including a hairline with improved anti-fingerprint properties, and a manufacturing method thereof.
- the front surface of home appliance is plated with chrome and coated.
- fingerprints may be attached to the surface of the home appliance due to user contact.
- the user's fingerprints tend to be more prominent, and the sense of luxury or cleanliness of the home appliance may be damaged.
- a home appliance including a hairline with improved corrosion resistance and anti-fingerprint properties, and a manufacturing method thereof.
- a manufacturing method of a home appliance including a hairline includes: forming at least one plating layer on the base material; processing the transverse hairline on the upper surface of the plating layer by tilting the hairline processing wheel at a predetermined angle; and forming a coating layer on the hairline.
- the tilting angle of the hairline processing wheel may be 4° to 10°
- the pressure applied to the plating layer during the hairline processing may be 1 to 1.40 A.
- the forming the plating layer may include: forming a copper plating layer by plating copper (Cu) on the base material, forming a nickel plating layer by plating nickel (Ni) on the copper plating layer and forming a chromium plating layer by plating chromium (Cr) on the nickel plating layer.
- the forming the plating layer may include: plating the copper plating layer to 5 to 30 ⁇ m, plating the nickel plating layer to 5 to 30 ⁇ m on the upper surface of the copper plating layer and plating the chromium plating layer to 0.30 to 0.80 ⁇ m on the upper surface of the nickel plating layer.
- the chromium layer may be processed to be worn by 0.08 to 0.20 ⁇ m during the hairline processing.
- the base material may be aluminum (Al).
- the coating layer may be coated using one of acrylic, fluorine, and silane-based paints.
- the hairline may be formed to form an angle of 87° to 93° with respect to the vertical line.
- a home appliance including a hairline includes: a copper (Cu) plating layer formed on an aluminum (Al) base material; a nickel (Ni) plating layer formed on the copper plating layer; and a chromium (Cr) plating layer formed on the nickel plating layer and having unevenness formed on an upper surface thereof in a transverse direction.
- Cu copper
- Al aluminum
- Ni nickel
- Cr chromium
- the unevenness may be formed to form an angle of 87° to 93° with respect to the vertical line.
- the thickness of the chromium plating layer may be 0.15 to 0.5 ⁇ m.
- the thickness of the copper plating layer may be 5 to 30 ⁇ m, the thickness of the nickel plating layer may be 5 to 30 ⁇ m.
- the home appliance may further include: a coating layer formed on the chromium plating layer.
- the coating layer may be one of acrylic, fluorine, and silane-based paints.
- a separate plating may not be performed after the hairline processing.
- FIG. 1 is a view illustrating a display apparatus according to an embodiment disclosed.
- FIG. 1 is a view illustrating a state in which a plating layer is formed, a hairline is processed, and a coating layer is formed on a base material of a home appliance including a hairline according to an embodiment of the present disclosure.
- FIG. 2 is a view illustrating a manufacturing process of a home appliance including a hairline according to an embodiment of the present disclosure.
- FIG. 3 is a diagram illustrating a state in which the axis of a hairline processing wheel for processing a hairline on a base material is tilted according to an embodiment of the present disclosure.
- FIG. 4 is a flowchart illustrating a manufacturing process of a home appliance including a hairline according to an embodiment of the present disclosure.
- FIG. 5 is a photograph of a hairline formed according to an embodiment of the present disclosure.
- FIG. 1 is a view illustrating a state in which a plating layer is formed, a hairline is processed, and a coating layer is formed on a base material of a home appliance including a hairline according to an embodiment of the present disclosure.
- a copper (Cu) plating layer 110 is formed on the upper surface of the base material 100 of the home appliance 1 according to the disclosed embodiment.
- a nickel (Ni) plating layer 120 is formed on the copper plating layer 110 .
- a chromium (Cr) plating layer 130 is formed on the nickel plating layer 120 .
- An aluminum (Al) may be used as the base material 100 .
- An unevenness 130 a forming a pattern in the transverse direction is formed on the upper surface of the chromium plating layer 130 .
- the unevenness 130 a may be formed by hairline processing.
- the transverse direction means the horizontal direction. More specifically, the transverse direction means that the hairline is formed horizontally with the short side of the base material 100 . The formation of hairline will be described later.
- a coating layer 140 may be formed on the upper surface of the chromium plating layer 130 .
- the coating layer 140 may be formed using one of acrylic, fluorine, and silane-based paints.
- the copper plating layer 110 , the nickel plating layer 120 , and the chromium plating layer 130 may be formed from the base material 100 in order.
- An unevenness 130 a is formed on the upper surface of the chromium plating layer 130 , and a coating layer 140 may be disposed on the upper surface of the chromium plating layer 130 .
- the thickness of aluminum which is the base material 100 , may be 10 to 30 mm.
- the base material 100 may be manufactured using an extrusion technique.
- the thickness of the copper plating layer 110 may be 5 to 30 ⁇ m.
- the thickness of the nickel plating layer 120 may be 5 to 30 ⁇ m.
- the thickness of the chromium plating layer 130 may be 0.15 to 0.5 ⁇ m. This means the thickness of the chrome plating layer after hairline processing, and it means the maximum thickness of the chrome plating layer.
- the thickness of the chromium plating layer before hairline processing may be 0.3 to 0.8 ⁇ m. This will be described in more detail in Examples to be described later.
- FIG. 2 is a view illustrating a manufacturing process of a home appliance according to an embodiment of the present disclosure.
- the home appliance 1 is formed by forming at least one plating layer 110 , 120 , 130 on the base material 100 , processing the hairline 130 a which is unevenness in the transverse direction on the upper surface of the plating layers 110 , 120 , 130 and forming a coating layer 140 on the hairline 130 a .
- the coating layer may be coated using a silane-based, fluorine-based or acrylic-based paint. According to the disclosed embodiment, it may be coated using a silane-based cycloalkoxy alkyl silane.
- Cycloalkoxy alkyl silane is (R 1 O) 3 —(CH) n —COONH—(CH 2 ) 2 —COO—CR 2 —CH 2 , where n is 2 to 12, R 1 includes at least one of an alkoxy group, a cycloalchoxy group, and an alkyl group, R 2 includes at least one of a hydrogen group (—H), a methyl group (—CH 4 ), and a vinyl group (—CH ⁇ CH 2 ).
- Plating is performed on the upper surface of the base material 100 in the order of a copper plating layer 110 , a nickel plating layer 120 , and a chrome plating layer 130 . Thereafter, the hairline is processed on the upper surface of the chrome plating layer 130 to form the unevenness 130 a . Thereafter, the coating is performed to coat the upper surface of the unevenness 130 a so that the coating layer 140 is formed.
- FIG. 3 is a diagram illustrating a state in which the axis of a hairline processing wheel for processing a hairline on a base material is tilted according to an embodiment of the present disclosure.
- the hairline processing of the disclosed embodiment is performed using a hairline processing wheel 2 .
- the polishing brush 3 for processing the hairline of the hairline processing wheel 2 uses a polishing brush 3 in which high-purity alumina (Al 2 O 3 : purity 90% or more) is adhered to the actual surface of Nylon6.6 or polyester through an adhesive.
- the hairline processing wheel 2 processes the hairline while tilted at a predetermined angle.
- the rotation shaft 4 of the hairline processing wheel 2 is installed to be tilted at a predetermined angle with respect to the short side of the base material 100 .
- the polishing brush 3 of the hairline processing wheel 2 is also tilted at a predetermined angle.
- the polishing brush 3 of the hairline processing wheel 2 may be tilted 4 to 10° with respect to the horizontal plane. That is, ⁇ described in FIG. 3 may be 4 to 10°.
- ⁇ described in FIG. 3 may be 4 to 10°.
- the hairline was processed without tilting the hairline processing wheel, and accordingly, the hairline was created in the diagonal direction.
- the unevenness 130 a forming the hairline may be formed to have an angle of 87 to 93° with respect to the vertical line. Accordingly, even if the base material 100 moves and processes the hairline, the hairline may be formed to have a transverse direction.
- the pressure applied to the plating layer during hairline processing may be less than 1 to 1.40 A.
- the amount of wear of the chrome plating layer may be controlled by adjusting the hairline processing pressure.
- the chromium plating layer may be worn by 0.08 to 0.20 ⁇ m. Accordingly, the glossinessiness of the home appliance may be adjusted. This will be described later in Examples.
- FIG. 4 is a flowchart illustrating a manufacturing process of a home appliance according to an embodiment of the present disclosure.
- the home appliance of an embodiment of the disclosure is manufactured by forming at least one plating layer on the base material (S 310 ), processing the transverse hairline on the upper surface of the plating layer by tilting the hairline processing wheel at a predetermined angle (S 320 ), and forming a coating layer on the hairline (S 330 ).
- At least one plating layer is formed on the base material (S 310 ).
- the base material may be aluminum (Al). Aluminum may be prepared by extrusion techniques.
- the base material may be 5 to 20 mm.
- the plating layer formed on the base material may be a copper plating layer, a nickel plating layer, or a chromium plating layer.
- the thickness of the copper plating layer may be 5 to 30 ⁇ m
- the thickness of the nickel plating layer may be 5 to 30 ⁇ m
- the thickness of the chromium plating layer may be 0.3 to 0.8 ⁇ m.
- the current density is 10 A/dm 2
- the plating time may be 180 to 480 seconds.
- the hairline in the transverse direction on the upper surface of the plating layer is processed by tilting the hairline processing wheel at a predetermined angle (S 320 ). Hairline processing may be performed on the top surface of the chrome plating layer. At this time, the hairline processing wheel may be tilted 4° to 10° with respect to the horizontal plane.
- the pressure applied by the hairline processing wheel to the plating layer may be 1 to 1.4 A. According to the disclosed embodiment, the pressure applied by the hairline processing wheel to the plating layer before hairline processing may be 1.20 A, and the pressure applied by the hairline processing wheel to the plating layer after hairline processing may be 1.30 A.
- the rotational speed of the polishing brush may be 1000 to 1750 rpm.
- the supply rate of the base material may be 3.0 Hz.
- a coating layer is formed on the hairline (S 330 ).
- the paint used to form the coating layer may be fluorine-based, silane-based, or acrylic-based.
- a fluorine-based paint polytetrafluoroethlene (PTFE) series may be used.
- PTFE polytetrafluoroethlene
- PMMA poly(methymethacrylate) series may be used.
- a silane type a cyclo alkoxy alkyl silane may be used. Cyclo alkoxy alkyl silane contains a polyfunctional acrylic silane having lipophilic and hydrophobic properties, and may increase adhesion to the chromium plating layer.
- Coating of the coating layer may be performed using at least one of spray, dipping, wiping, and bar coating within 1 hour at room temperature. After that, room temperature curing or thermal curing is performed.
- the thickness of the coating layer may be coated to a thickness of 10 ⁇ m or less.
- the thickness of the coating layer may be coated to 500 nm or less.
- the base material of Comparative Examples and Inventive Examples aluminum was used as the base material of Comparative Examples and Inventive Examples, and a copper plating layer, a nickel plating layer, and a chrome plating layer are located on the aluminum.
- the thickness of aluminum as the base material is 20 mm
- the thickness of the copper plating layer is 15 ⁇ m
- the thickness of the nickel plating layer is 7 ⁇ m.
- the thickness of the chromium plating layer is different as described in [Table 1] in each of the comparative examples and Inventive examples.
- the hairline is processed on top of the chrome plating layer. At this time, the pressure applied to the base material during hairline processing is different as described in [Table 1] in each of the Comparative Examples and Inventive Examples.
- a corrosion resistance test was performed on the base material processed as described above.
- the corrosion resistance test is conducted by spraying 5% sodium chloride (NaCl) at 35° C. for 8 hours and then stopping for 16 hours three times, washing with water at room temperature, and visually determining whether there is rust or corrosion.
- the thickness of the chromium plating layer is 0.12 ⁇ m, and the pressure applied to the base material during hairline processing is 1.40 A.
- the thickness of the chromium plating layer is 0.12 ⁇ m, and the pressure applied to the base material during hairline processing is 1.30 A.
- the thickness of the chromium plating layer is 0.19 ⁇ m, and the pressure applied to the base material during hairline processing is 1.40 A.
- the thickness of the chromium plating layer is 0.19 ⁇ m and the pressure applied to the base material during hairline processing is 1.30 A.
- the thickness of the chromium plating layer is 0.33 ⁇ m, and the pressure applied to the base material during hairline processing is 1.30 A.
- the thickness of the chromium plating layer is 0.33 ⁇ m, and the pressure applied to the base material during hairline processing is 1.20 A.
- the thickness of the chromium plating layer is 0.56 ⁇ m, and the pressure applied to the base material during hairline processing is 1.30 A.
- the thickness of the chromium plating layer is 0.56 ⁇ m, and the pressure applied to the base material during hairline processing is 1.20 A.
- Aluminum was used as the base material of Comparative Examples and Inventive Examples, and a copper plating layer, a nickel plating layer, and a chromium plating layer were positioned on the aluminum.
- the thickness of aluminum as the base material is 20 mm
- the thickness of the copper plating layer is 15 ⁇ m
- the thickness of the nickel plating layer is 7 ⁇ m.
- the thickness of the chromium plating layer is 0.42 ⁇ m.
- the hairline processing pressure is different as described in [Table 2] in each of the comparative examples and Inventive Examples.
- Anti-fingerprint properties test was performed on the base material processed as described above. The glossiness of the anti-fingerprint properties test is measured by using BYK-Gardner GmbH's Cat No. 4447.
- the color difference is calculated using the following equation (1), and is obtained by measuring ⁇ E 5 times through a basic measurement method using the Konica Minolta's Minolta CM 2600D as a color difference meter, and by calculating the average of the median value after removing the maximum and minimum values.
- the sensory test is conducted by examining the visibility rate by 5 people compared to the bare sample at 800 lux lighting.
- the hairline processing pressure is 1.50 A.
- the hairline processing pressure is 1.40 A.
- the hairline processing pressure is 1.35 A.
- the hairline processing pressure is 1.30 A.
- the hairline processing pressure is 1.30 A.
- the hairline processing pressure is 1.25 A.
- Comparative Example 2-1 had a large color difference and did not pass the sensory test. Comparative Example 2-2 did not pass the corrosion resistance test due to excessive hairline processing pressure.
- the hairline processing pressure was 1.20 to 1.35
- the glossiness was 150 to 250
- the color difference was small
- the sensory test was passed
- the corrosion resistance test was also passed.
- Aluminum was used as the base material of Comparative Example and Inventive Example, and a copper plating layer, a nickel plating layer, and a chromium plating layer were positioned on the aluminum.
- the thickness of aluminum as the base material is 20 mm
- the thickness of the copper plating layer is 15 ⁇ m
- the thickness of the nickel plating layer is 7 ⁇ m.
- the thickness of the chromium plating layer is 0.42 ⁇ m.
- the hairline processing pressure is 1.30 A.
- the moving speed and tilting angle of the hairline processing wheel are different as described in [Table 3] in each of the Comparative Examples and Inventive Examples.
- a sensory test was performed on the base material processed as described above. The sensory test is conducted by examining the visibility rate by 5 people compared to the bare sample at 800 lux lighting.
- the moving speed of the hairline processing wheel is 1000 rpm, and the hairline processing wheel is not tilted.
- the moving speed of the hairline processing wheel is 1750 rpm, and the hairline processing wheel is not tilted.
- the moving speed of the hairline processing wheel is 1000 rpm, and the hairline processing wheel is tilted 2° in the z-axis direction.
- the moving speed of the hairline processing wheel is 1000 rpm, and the hairline processing wheel is tilted 15° in the z-axis direction.
- the moving speed of the hairline processing wheel is 1000 rpm, and the hairline processing wheel is tilted 4° in the z-axis direction.
- the moving speed of the hairline processing wheel is 1000 rpm, and the hairline processing wheel is tilted 6° in the z-axis direction.
- the moving speed of the hairline processing wheel is 1000 rpm, and the hairline processing wheel is tilted 8° in the z-axis direction.
- the moving speed of the hairline processing wheel is 1000 rpm, and the hairline processing wheel is tilted 10° in the z-axis direction.
- Comparative Examples 3-1 to 3-3 did not pass the sensory test.
- Comparative Example 3-4 the hairline processing wheel is slightly tilted. The hairline angle was 98°, and the hairline was formed close to the diagonal line as in Comparative Example 3-1 to Comparative Example 3-3, so the sensory test was not passed.
- Comparative Example 3-5 the tilting of the hairline processing wheel is 15°, and the tilting of the hairline processing wheel is excessive, and it can be seen that the hairline angle is formed at 80° and formed as a diagonal line.
- Aluminum was used as the base material of Comparative Example and Inventive Example, and a copper plating layer, a nickel plating layer, and a chromium plating layer were positioned on the aluminum.
- the thickness of aluminum as the base material is 20 mm
- the thickness of the copper plating layer is 15 ⁇ m
- the thickness of the nickel plating layer is 7 ⁇ m.
- the thickness of the chromium plating layer is 0.2 ⁇ m.
- the hairline processing pressure is 1.3 A.
- the coating conditions and the paint used for the coating layer are different as described in [Table 4] below.
- the moving speed and tilting angle of the hairline processing wheel are different as described in [Table 3] in each of the Comparative Examples and Inventive Examples.
- the anti-fingerprint properties test was performed on the base material processed as described above. Fingerprint visibility test and fingerprint wipeability test were conducted as anti-fingerprint properties test.
- the glossiness of the fingerprint visibility test is measured by using BYK-Gardner GmbH's Cat No. 4447.
- the color difference is calculated using the following equation (1), and is obtained by measuring ⁇ E 5 times through a basic measurement method using the Konica Minolta's Minolta CM 2600D as a color difference meter, and by calculating the average of the median value after removing the maximum and minimum values.
- Fingerprint wipeability test measures glossiness and color difference after wiping three times with 500 g cotton cloth with a wear-resistant tester. The measurement method is as described above. In addition, the sensory test of the fingerprint wipeability test is conducted by inspecting the visibility rate by 5 people compared to the bare sample at 800 lux lighting.
- the Inventive Example 4-1 uses a silane 1 component and is coated with 50 nm. In addition, it was cured at 25° C. by natural curing.
- the silane 1 component refers to cyclohexyl methoxy dimethyl silane 1 .
- the Inventive Example 4-2 uses a fluorine 1 component and is coated with 200 nm. In addition, it was also UV cured.
- the fluorine 1 component refers to perfluoro polyether 1 .
- the Inventive Example 4-3 uses an acrylic component 1 and is coated with 5000 nm. In addition, it was cured at 60° C. by thermal curing.
- the acrylic component 1 refers to PMMA-co-PTMSM copolymer.
- the Inventive Example 4-4 uses a silane 2 component and is coated with 50 nm. In addition, it was cured at 25° C. by natural curing.
- the silane 2 component refers to cyclohexyl methoxy dimethyl silane 2 .
- the Inventive Example 4-5 uses a fluorine 2 component and is coated with 200 nm. In addition, it was also UV cured.
- the fluorine 2 component refers to perfluoro polyether 2 .
- the Inventive Example 4-6 uses an acrylic component 2 and is coated with 5000 nm. In addition, it was cured at 60° C. by thermal curing.
- the acrylic component 2 refers to PMMA-polysisesquioxane.
- the Inventive Example 4-7 uses a silane 3 component and is coated with 50 nm. In addition, it was cured at 25° C. by natural curing.
- the silane 3 component refers to cyclohexyl methoxy dimethyl silane 3 .
- the Inventive Example 4-8 uses a fluorine 3 component and is coated with 200 nm. In addition, it was also UV cured.
- the fluorine 3 component refers to perfluoro polyether 3 .
- the Inventive Example 4-9 uses an acrylic component 3 and is coated with 5000 nm. In addition, it was cured at 60° C. by thermal curing.
- the acrylic component 3 refers to polyurethane mathacrylate.
- FIG. 5 is a photograph of a hairline formed according to an embodiment of the present disclosure.
- the hairline of FIG. 5 was processed by plating a copper plating layer of 15 ⁇ m, a nickel plating layer of 7 ⁇ m, and a chromium plating layer of 0.42 ⁇ m on 20 mm of aluminum as a base material, tilting the tilting angle of the hairline processing wheel by 4° in the z-axis direction during hairline processing and applying a pressure of 1.30 A.
- a coating paint a coating paint containing 0.1 to 0.8% cyclohexyl(methoxy)(methyl)(phenyl)silane and 99.0 to 99.9% alcohol was used.
- the coating was cured at room temperature for 1 hour after spraying once reciprocating on the hairline-processed chromium plating layer using the above-described coating paint.
- the hairline is processed in the transverse direction as shown in FIG. 5 .
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electrochemistry (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Electroplating Methods And Accessories (AREA)
- Laminated Bodies (AREA)
Abstract
Description
- The present disclosure relates to a home appliance including a hairline and a manufacturing method thereof, and more particularly, to a home appliance including a hairline with improved anti-fingerprint properties, and a manufacturing method thereof.
- Recently, in order to show the luxury and cleanliness of home appliance, the front surface of home appliance is plated with chrome and coated. However, over time, fingerprints may be attached to the surface of the home appliance due to user contact. In particular, in the case of hairline-processed home appliances, the user's fingerprints tend to be more prominent, and the sense of luxury or cleanliness of the home appliance may be damaged.
- In addition, conventionally, in the surface processing of a home appliance, primary chromium (Cr) plating was performed, hairline processing was performed, and secondary chromium plating was performed, followed by coating. In this case, since the plating process has to be performed twice, there is a problem in that productivity is lowered and material cost is increased. In addition, after coating, there is a problem of high color difference in fingerprint visibility and fingerprint wipeability before and after fingerprint is applied.
- Therefore, it is an aspect of the disclosure to provide a home appliance including a hairline with improved corrosion resistance and anti-fingerprint properties, and a manufacturing method thereof.
- In accordance with one aspect of the disclosure, a manufacturing method of a home appliance including a hairline, the manufacturing method includes: forming at least one plating layer on the base material; processing the transverse hairline on the upper surface of the plating layer by tilting the hairline processing wheel at a predetermined angle; and forming a coating layer on the hairline.
- The tilting angle of the hairline processing wheel may be 4° to 10°
- The pressure applied to the plating layer during the hairline processing may be 1 to 1.40 A.
- The forming the plating layer may include: forming a copper plating layer by plating copper (Cu) on the base material, forming a nickel plating layer by plating nickel (Ni) on the copper plating layer and forming a chromium plating layer by plating chromium (Cr) on the nickel plating layer.
- The forming the plating layer may include: plating the copper plating layer to 5 to 30 μm, plating the nickel plating layer to 5 to 30 μm on the upper surface of the copper plating layer and plating the chromium plating layer to 0.30 to 0.80 μm on the upper surface of the nickel plating layer.
- The chromium layer may be processed to be worn by 0.08 to 0.20 μm during the hairline processing.
- The base material may be aluminum (Al).
- The coating layer may be coated using one of acrylic, fluorine, and silane-based paints.
- The hairline may be formed to form an angle of 87° to 93° with respect to the vertical line.
- In accordance with another aspect of the disclosure, a home appliance including a hairline, the home appliance includes: a copper (Cu) plating layer formed on an aluminum (Al) base material; a nickel (Ni) plating layer formed on the copper plating layer; and a chromium (Cr) plating layer formed on the nickel plating layer and having unevenness formed on an upper surface thereof in a transverse direction.
- The unevenness may be formed to form an angle of 87° to 93° with respect to the vertical line.
- The thickness of the chromium plating layer may be 0.15 to 0.5 μm.
- The thickness of the copper plating layer may be 5 to 30 μm, the thickness of the nickel plating layer may be 5 to 30 μm.
- The home appliance may further include: a coating layer formed on the chromium plating layer.
- The coating layer may be one of acrylic, fluorine, and silane-based paints.
- According to the home appliance including the hairline and the manufacturing method thereof according to the disclosed embodiment, a separate plating may not be performed after the hairline processing.
- In addition, it is possible to manufacture a transverse hairline. In addition, it is possible to supplement fingerprint visibility and fingerprint wipeability.
-
FIG. 1 is a view illustrating a display apparatus according to an embodiment disclosed. -
FIG. 1 is a view illustrating a state in which a plating layer is formed, a hairline is processed, and a coating layer is formed on a base material of a home appliance including a hairline according to an embodiment of the present disclosure. -
FIG. 2 is a view illustrating a manufacturing process of a home appliance including a hairline according to an embodiment of the present disclosure. -
FIG. 3 is a diagram illustrating a state in which the axis of a hairline processing wheel for processing a hairline on a base material is tilted according to an embodiment of the present disclosure. -
FIG. 4 is a flowchart illustrating a manufacturing process of a home appliance including a hairline according to an embodiment of the present disclosure. -
FIG. 5 is a photograph of a hairline formed according to an embodiment of the present disclosure. - Hereinafter, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.
-
FIG. 1 is a view illustrating a state in which a plating layer is formed, a hairline is processed, and a coating layer is formed on a base material of a home appliance including a hairline according to an embodiment of the present disclosure. - As shown in
FIG. 1 , a copper (Cu)plating layer 110 is formed on the upper surface of thebase material 100 of thehome appliance 1 according to the disclosed embodiment. In addition, a nickel (Ni)plating layer 120 is formed on thecopper plating layer 110. A chromium (Cr)plating layer 130 is formed on thenickel plating layer 120. An aluminum (Al) may be used as thebase material 100. Anunevenness 130 a forming a pattern in the transverse direction is formed on the upper surface of thechromium plating layer 130. Theunevenness 130 a may be formed by hairline processing. Here, the transverse direction means the horizontal direction. More specifically, the transverse direction means that the hairline is formed horizontally with the short side of thebase material 100. The formation of hairline will be described later. Acoating layer 140 may be formed on the upper surface of thechromium plating layer 130. Thecoating layer 140 may be formed using one of acrylic, fluorine, and silane-based paints. - That is, the
copper plating layer 110, thenickel plating layer 120, and thechromium plating layer 130 may be formed from thebase material 100 in order. Anunevenness 130 a is formed on the upper surface of thechromium plating layer 130, and acoating layer 140 may be disposed on the upper surface of thechromium plating layer 130. - The thickness of aluminum, which is the
base material 100, may be 10 to 30 mm. Thebase material 100 may be manufactured using an extrusion technique. The thickness of thecopper plating layer 110 may be 5 to 30 μm. The thickness of thenickel plating layer 120 may be 5 to 30 μm. The thickness of thechromium plating layer 130 may be 0.15 to 0.5 μm. This means the thickness of the chrome plating layer after hairline processing, and it means the maximum thickness of the chrome plating layer. The thickness of the chromium plating layer before hairline processing may be 0.3 to 0.8 μm. This will be described in more detail in Examples to be described later. -
FIG. 2 is a view illustrating a manufacturing process of a home appliance according to an embodiment of the present disclosure. - As shown in
FIG. 2 , thehome appliance 1 is formed by forming at least oneplating layer base material 100, processing thehairline 130 a which is unevenness in the transverse direction on the upper surface of theplating layers coating layer 140 on thehairline 130 a. The coating layer may be coated using a silane-based, fluorine-based or acrylic-based paint. According to the disclosed embodiment, it may be coated using a silane-based cycloalkoxy alkyl silane. Cycloalkoxy alkyl silane is (R1O)3—(CH)n—COONH—(CH2)2—COO—CR2—CH2, where n is 2 to 12, R1 includes at least one of an alkoxy group, a cycloalchoxy group, and an alkyl group, R2 includes at least one of a hydrogen group (—H), a methyl group (—CH4), and a vinyl group (—CH═CH2). - Plating is performed on the upper surface of the
base material 100 in the order of acopper plating layer 110, anickel plating layer 120, and achrome plating layer 130. Thereafter, the hairline is processed on the upper surface of thechrome plating layer 130 to form theunevenness 130 a. Thereafter, the coating is performed to coat the upper surface of theunevenness 130 a so that thecoating layer 140 is formed. - Hereinafter, the hairline processing of the disclosed embodiment will be described.
-
FIG. 3 is a diagram illustrating a state in which the axis of a hairline processing wheel for processing a hairline on a base material is tilted according to an embodiment of the present disclosure. - The hairline processing of the disclosed embodiment is performed using a
hairline processing wheel 2. The polishing brush 3 for processing the hairline of thehairline processing wheel 2 uses a polishing brush 3 in which high-purity alumina (Al2O3: purity 90% or more) is adhered to the actual surface of Nylon6.6 or polyester through an adhesive. - The
hairline processing wheel 2 according to the disclosed embodiment processes the hairline while tilted at a predetermined angle. The rotation shaft 4 of thehairline processing wheel 2 is installed to be tilted at a predetermined angle with respect to the short side of thebase material 100. Accordingly, the polishing brush 3 of thehairline processing wheel 2 is also tilted at a predetermined angle. The polishing brush 3 of thehairline processing wheel 2 may be tilted 4 to 10° with respect to the horizontal plane. That is, θ described inFIG. 3 may be 4 to 10°. As in the disclosed embodiment, since the hairline is processed in the transverse direction as the base material moves, a centrifugal force acts on thebase material 100. Accordingly, it was difficult to form a transverse hairline due to the centrifugal force of thehairline processing wheel 2 acting on thebase material 100. Conventionally, the hairline was processed without tilting the hairline processing wheel, and accordingly, the hairline was created in the diagonal direction. However, in the case of the disclosed embodiment, since the hairline processing wheel is tilted by 4 to 10° to process the hairline, theunevenness 130 a forming the hairline may be formed to have an angle of 87 to 93° with respect to the vertical line. Accordingly, even if thebase material 100 moves and processes the hairline, the hairline may be formed to have a transverse direction. - In addition, the pressure applied to the plating layer during hairline processing may be less than 1 to 1.40 A. The amount of wear of the chrome plating layer may be controlled by adjusting the hairline processing pressure. In the case of the disclosed embodiment, by adjusting the pressure applied to the plating layer during hairline processing to 1 to 1.40 A, the chromium plating layer may be worn by 0.08 to 0.20 μm. Accordingly, the glossinessiness of the home appliance may be adjusted. This will be described later in Examples.
-
FIG. 4 is a flowchart illustrating a manufacturing process of a home appliance according to an embodiment of the present disclosure. - As shown in
FIG. 4 , the home appliance of an embodiment of the disclosure is manufactured by forming at least one plating layer on the base material (S310), processing the transverse hairline on the upper surface of the plating layer by tilting the hairline processing wheel at a predetermined angle (S320), and forming a coating layer on the hairline (S330). - At least one plating layer is formed on the base material (S310). In this case, the base material may be aluminum (Al). Aluminum may be prepared by extrusion techniques. The base material may be 5 to 20 mm. The plating layer formed on the base material may be a copper plating layer, a nickel plating layer, or a chromium plating layer. In this case, the thickness of the copper plating layer may be 5 to 30 μm, the thickness of the nickel plating layer may be 5 to 30 μm, and the thickness of the chromium plating layer may be 0.3 to 0.8 μm. When plating the chromium plating layer, the current density is 10 A/dm2, and the plating time may be 180 to 480 seconds.
- The hairline in the transverse direction on the upper surface of the plating layer is processed by tilting the hairline processing wheel at a predetermined angle (S320). Hairline processing may be performed on the top surface of the chrome plating layer. At this time, the hairline processing wheel may be tilted 4° to 10° with respect to the horizontal plane. In addition, the pressure applied by the hairline processing wheel to the plating layer may be 1 to 1.4 A. According to the disclosed embodiment, the pressure applied by the hairline processing wheel to the plating layer before hairline processing may be 1.20 A, and the pressure applied by the hairline processing wheel to the plating layer after hairline processing may be 1.30 A. In addition, the rotational speed of the polishing brush may be 1000 to 1750 rpm. In addition, the supply rate of the base material may be 3.0 Hz.
- A coating layer is formed on the hairline (S330). At this time, the paint used to form the coating layer may be fluorine-based, silane-based, or acrylic-based. In the case of a fluorine-based paint, polytetrafluoroethlene (PTFE) series may be used. In addition, in the case of acrylic paints, poly(methymethacrylate) (PMMA) series may be used. In the case of a silane type, a cyclo alkoxy alkyl silane may be used. Cyclo alkoxy alkyl silane contains a polyfunctional acrylic silane having lipophilic and hydrophobic properties, and may increase adhesion to the chromium plating layer. Coating of the coating layer may be performed using at least one of spray, dipping, wiping, and bar coating within 1 hour at room temperature. After that, room temperature curing or thermal curing is performed. In the case of acrylic paints, the thickness of the coating layer may be coated to a thickness of 10 μm or less. In the case of fluorine-based and silane-based paints, the thickness of the coating layer may be coated to 500 nm or less.
- Hereinafter, a disclosed embodiment will be described through an experiment conducted on a home appliance according to the disclosed embodiment.
- For the measurement of corrosion resistance, aluminum was used as the base material of Comparative Examples and Inventive Examples, and a copper plating layer, a nickel plating layer, and a chrome plating layer are located on the aluminum. The thickness of aluminum as the base material is 20 mm, the thickness of the copper plating layer is 15 μm, and the thickness of the nickel plating layer is 7 μm. The thickness of the chromium plating layer is different as described in [Table 1] in each of the comparative examples and Inventive examples. The hairline is processed on top of the chrome plating layer. At this time, the pressure applied to the base material during hairline processing is different as described in [Table 1] in each of the Comparative Examples and Inventive Examples. A corrosion resistance test was performed on the base material processed as described above. The corrosion resistance test is conducted by spraying 5% sodium chloride (NaCl) at 35° C. for 8 hours and then stopping for 16 hours three times, washing with water at room temperature, and visually determining whether there is rust or corrosion.
- In Comparative Example 1-1, the thickness of the chromium plating layer is 0.12 μm, and the pressure applied to the base material during hairline processing is 1.40 A.
- In Comparative Example 1-2, the thickness of the chromium plating layer is 0.12 μm, and the pressure applied to the base material during hairline processing is 1.30 A.
- In Comparative Example 1-3, the thickness of the chromium plating layer is 0.19 μm, and the pressure applied to the base material during hairline processing is 1.40 A. In Comparative Example 1-4, the thickness of the chromium plating layer is 0.19 μm and the pressure applied to the base material during hairline processing is 1.30 A.
- In Inventive Example 1-1, the thickness of the chromium plating layer is 0.33 μm, and the pressure applied to the base material during hairline processing is 1.30 A.
- In Inventive Example 1-2, the thickness of the chromium plating layer is 0.33 μm, and the pressure applied to the base material during hairline processing is 1.20 A.
- In Inventive Example 1-3, the thickness of the chromium plating layer is 0.56 μm, and the pressure applied to the base material during hairline processing is 1.30 A.
- In Inventive Example 1-4, the thickness of the chromium plating layer is 0.56 μm, and the pressure applied to the base material during hairline processing is 1.20 A.
-
TABLE 1 thickness of hairline amount of wear Chrome plating chromium processing of chrome layer thickness corrosion plating layer pressure plating layer after hairline resistance (um) (A) (um) (um) (3 cycle) Comparative 0.12 1.40 0.12 Not NG Example 1-1 measurable Comparative 0.12 1.30 0.11 Not NG Example 1-2 measurable Comparative 0.19 1.40 0.14 Not NG Example 1-3 measurable Comparative 0.19 1.30 0.16 Not NG Example 1-4 measurable Inventive 0.33 1.30 0.18 0.15 PASS Example 1-1 Inventive 0.33 1.20 0.09 0.24 PASS Example 1-2 Inventive 0.56 1.30 0.19 0.37 PASS Example 1-3 Inventive 0.56 1.20 0.08 0.48 PASS Example 1-4 - As shown in [Table 1], in the case of Comparative Example 1-1 and Comparative Example 1-3, the thickness of the chromium plating layer was thinner than that of the disclosed embodiment, and the hairline processing pressure was excessively large, so that the corrosion resistance test was not passed. In the case of Comparative Examples 1-2 and 1-4, the hairline processing pressure satisfies the range of the disclosed embodiment, but the thickness of the chromium plating layer was thin, so the corrosion resistance test was not passed.
- In contrast, in the case of Inventive Examples 1-1 to 1-4, since the range of the chrome plating layer and the hairline processing pressure is within the range of the disclosed embodiment, it can be confirmed that the corrosion resistance test has passed. In addition, in the case of Inventive Examples 1-1 to 1-4, since the range of the chromium plating layer and the hairline processing pressure is within the range of the disclosed embodiment, it can be confirmed that the thickness of the chromium plating layer after hairline processing is within 0.15 to 0.5 μm and has high corrosion resistance.
- In the following, glossiness, color difference, and sensory tests were conducted to measure anti-fingerprint properties, the corrosion resistance test was conducted along with this.
- Aluminum was used as the base material of Comparative Examples and Inventive Examples, and a copper plating layer, a nickel plating layer, and a chromium plating layer were positioned on the aluminum. The thickness of aluminum as the base material is 20 mm, the thickness of the copper plating layer is 15 μm, and the thickness of the nickel plating layer is 7 μm. The thickness of the chromium plating layer is 0.42 μm. The hairline processing pressure is different as described in [Table 2] in each of the comparative examples and Inventive Examples. Anti-fingerprint properties test was performed on the base material processed as described above. The glossiness of the anti-fingerprint properties test is measured by using BYK-Gardner GmbH's Cat No. 4447. The color difference is calculated using the following equation (1), and is obtained by measuring ΔE 5 times through a basic measurement method using the Konica Minolta's Minolta CM 2600D as a color difference meter, and by calculating the average of the median value after removing the maximum and minimum values.
-
- The sensory test is conducted by examining the visibility rate by 5 people compared to the bare sample at 800 lux lighting.
- In Comparative Example 2-1, the hairline processing pressure is 1.50 A.
- In Comparative Example 2-2, the hairline processing pressure is 1.40 A.
- In Inventive Example 2-1, the hairline processing pressure is 1.35 A.
- In Inventive Example 2-2, the hairline processing pressure is 1.30 A.
- In Inventive Example 2-3, the hairline processing pressure is 1.30 A.
- In Inventive Example 2-4, the hairline processing pressure is 1.25 A.
-
TABLE 2 thickness of hairline fingerprint visibility chromium processing color corrosion plating layer pressure difference sensory resistance(3 (μm) (A) glossiness (ΔE) test cycle) Comparative 0.42 1.50 71 4.02 bad NG Example 2-1 Comparative 0.42 1.40 123 3.81 good NG Example 2-2 Inventive 0.42 1.35 159 3.57 good PASS Example 2-1 Inventive 0.42 1.30 203 3.31 good PASS Example 2-2 Inventive 0.42 1.30 226 3.35 good PASS Example 2-3 Inventive 0.42 1.25 248 3.44 good PASS Example 2-4 - As can be seen in [Table 2], in the case of Comparative Example 2-1 and Comparative Example 2-2, the hairline processing pressure was out of the range of the disclosed embodiment, and glossiness was found to be less than 150. Accordingly, Comparative Example 2-1 had a large color difference and did not pass the sensory test. Comparative Example 2-2 did not pass the corrosion resistance test due to excessive hairline processing pressure.
- In the case of Inventive Examples 2-1 to 2-4, the hairline processing pressure was 1.20 to 1.35, the glossiness was 150 to 250, the color difference was small, the sensory test was passed, and the corrosion resistance test was also passed.
- The following is a test conducted with hairline angle, hairline thickness, and sensory test according to the tilting angle of the hairline processing wheel. Aluminum was used as the base material of Comparative Example and Inventive Example, and a copper plating layer, a nickel plating layer, and a chromium plating layer were positioned on the aluminum. The thickness of aluminum as the base material is 20 mm, the thickness of the copper plating layer is 15 μm, and the thickness of the nickel plating layer is 7 μm. The thickness of the chromium plating layer is 0.42 μm. The hairline processing pressure is 1.30 A. The moving speed and tilting angle of the hairline processing wheel are different as described in [Table 3] in each of the Comparative Examples and Inventive Examples. A sensory test was performed on the base material processed as described above. The sensory test is conducted by examining the visibility rate by 5 people compared to the bare sample at 800 lux lighting.
- In Comparative Example 3-1, the moving speed of the hairline processing wheel is 1000 rpm, and the hairline processing wheel is not tilted.
- In Comparative Example 3-2, the moving speed of the hairline processing wheel is 1450 rpm, and the hairline processing wheel is not tilted.
- In Comparative Example 3-3, the moving speed of the hairline processing wheel is 1750 rpm, and the hairline processing wheel is not tilted.
- In Comparative Example 3-4, the moving speed of the hairline processing wheel is 1000 rpm, and the hairline processing wheel is tilted 2° in the z-axis direction.
- In Comparative Example 3-5, the moving speed of the hairline processing wheel is 1000 rpm, and the hairline processing wheel is tilted 15° in the z-axis direction. In Inventive Example 3-1, the moving speed of the hairline processing wheel is 1000 rpm, and the hairline processing wheel is tilted 4° in the z-axis direction.
- In Inventive Example 3-2, the moving speed of the hairline processing wheel is 1000 rpm, and the hairline processing wheel is tilted 6° in the z-axis direction.
- In Inventive Example 3-3, the moving speed of the hairline processing wheel is 1000 rpm, and the hairline processing wheel is tilted 8° in the z-axis direction.
- In Inventive Example 3-4, the moving speed of the hairline processing wheel is 1000 rpm, and the hairline processing wheel is tilted 10° in the z-axis direction.
-
TABLE 3 moving tilting angle (°) hairline direction speed x Y Z angle hairline sensory (rpm) axis axis axis (°) thickness(μm) test Comparative 1000 0 0 0 105 20 Bad Example 3-1 Comparative 1450 0 0 0 108 20 Bad Example 3-2 Comparative 1750 0 0 0 115 20 Bad Example 3-3 Comparative 1000 0 0 2 98 20 Bad Example 3-4 Comparative 1000 0 0 15 80 20 Bad Example 3-5 Inventive 1000 0 0 4 93 20 Good Example 3-1 Inventive 1000 0 0 6 91 20 Good Example 3-2 Inventive 1000 0 0 8 90 20 Good Example 3-3 Inventive 1000 0 0 10 88 20 Good Example 3-4 - As can be seen in [Table 3], in Comparative Examples 3-1 to 3-3, the hairline processing wheel was not tilted, so the hairline angle was 100° or more, and the hairline was formed as a diagonal line. Accordingly, Comparative Examples 3-1 to 3-3 did not pass the sensory test. In Comparative Example 3-4, the hairline processing wheel is slightly tilted. The hairline angle was 98°, and the hairline was formed close to the diagonal line as in Comparative Example 3-1 to Comparative Example 3-3, so the sensory test was not passed. In Comparative Example 3-5, the tilting of the hairline processing wheel is 15°, and the tilting of the hairline processing wheel is excessive, and it can be seen that the hairline angle is formed at 80° and formed as a diagonal line.
- In the case of Inventive Examples 3-1 to 3-4, it can be seen that the hairline processing wheel is tilted 4° to 10° in the z-axis direction so that the hairline angle is 87° to 93°, and the hairline is formed in the transverse direction. Accordingly, it passed the sensory test.
- The following is a test that examines fingerprint visibility and wipeability according to the composition of the coating layer. Aluminum was used as the base material of Comparative Example and Inventive Example, and a copper plating layer, a nickel plating layer, and a chromium plating layer were positioned on the aluminum. The thickness of aluminum as the base material is 20 mm, the thickness of the copper plating layer is 15 μm, and the thickness of the nickel plating layer is 7 μm. The thickness of the chromium plating layer is 0.2 μm. The hairline processing pressure is 1.3 A. The coating conditions and the paint used for the coating layer are different as described in [Table 4] below. The moving speed and tilting angle of the hairline processing wheel are different as described in [Table 3] in each of the Comparative Examples and Inventive Examples. The anti-fingerprint properties test was performed on the base material processed as described above. Fingerprint visibility test and fingerprint wipeability test were conducted as anti-fingerprint properties test. The glossiness of the fingerprint visibility test is measured by using BYK-Gardner GmbH's Cat No. 4447. The color difference is calculated using the following equation (1), and is obtained by measuring ΔE 5 times through a basic measurement method using the Konica Minolta's Minolta CM 2600D as a color difference meter, and by calculating the average of the median value after removing the maximum and minimum values.
-
- Fingerprint wipeability test measures glossiness and color difference after wiping three times with 500 g cotton cloth with a wear-resistant tester. The measurement method is as described above. In addition, the sensory test of the fingerprint wipeability test is conducted by inspecting the visibility rate by 5 people compared to the bare sample at 800 lux lighting.
- The Inventive Example 4-1 uses a
silane 1 component and is coated with 50 nm. In addition, it was cured at 25° C. by natural curing. Here, thesilane 1 component refers to cyclohexyl methoxy dimethylsilane 1. - The Inventive Example 4-2 uses a
fluorine 1 component and is coated with 200 nm. In addition, it was also UV cured. Here, thefluorine 1 component refers toperfluoro polyether 1. - The Inventive Example 4-3 uses an
acrylic component 1 and is coated with 5000 nm. In addition, it was cured at 60° C. by thermal curing. Here, theacrylic component 1 refers to PMMA-co-PTMSM copolymer. - The Inventive Example 4-4 uses a
silane 2 component and is coated with 50 nm. In addition, it was cured at 25° C. by natural curing. Here, thesilane 2 component refers to cyclohexyl methoxy dimethylsilane 2. - The Inventive Example 4-5 uses a
fluorine 2 component and is coated with 200 nm. In addition, it was also UV cured. Here, thefluorine 2 component refers toperfluoro polyether 2. - The Inventive Example 4-6 uses an
acrylic component 2 and is coated with 5000 nm. In addition, it was cured at 60° C. by thermal curing. Here, theacrylic component 2 refers to PMMA-polysisesquioxane. - The Inventive Example 4-7 uses a silane 3 component and is coated with 50 nm. In addition, it was cured at 25° C. by natural curing. Here, the silane 3 component refers to cyclohexyl methoxy dimethyl silane 3.
- The Inventive Example 4-8 uses a fluorine 3 component and is coated with 200 nm. In addition, it was also UV cured. Here, the fluorine 3 component refers to perfluoro polyether 3.
- The Inventive Example 4-9 uses an acrylic component 3 and is coated with 5000 nm. In addition, it was cured at 60° C. by thermal curing. Here, the acrylic component 3 refers to polyurethane mathacrylate.
-
4 fingerprint visibility fingerprint wipeability anti-fingerprint coating color color Thickness Curing glossiness difference glossiness difference sensory component (nm) method (60°) (ΔE) (60°) (ΔE) test Inventive silane 1 50 natural curing 180 2.83 155 1.27 PASS Example 4-1 (25° C.) Inventive fluorine 1 200 UV curing 180 3.04 141 1.49 PASS Example 4-2 Inventive acrylic 1 5000 thermal curing 180 2.23 170 1.11 PASS Example 4-3 (60° C.) Inventive silane 2 50 natural curing 200 3.31 179 1.32 PASS Example 4-4 (25° C.) Inventive fluorine 2 200 UV curing 200 3.52 166 1.52 PASS Example 4-5 Inventive acrylic 2 5000 thermal curing 200 2.50 189 1.18 PASS Example 4-6 (60° C.) Inventive silane 3 50 natural curing 240 3.44 250 1.53 PASS Example 4-7 (25° C.) Inventive fluorine 3 200 UV curing 240 3.74 250 1.85 PASS Example 4-8 Inventive acrylic 3 5000 thermal curing 240 2.88 250 1.24 PASS Example 4-9 (60° C.) - As can be seen in [Table 4], when a fluorine-based, acrylic-based, or silane-based paint is used, the color difference in fingerprint visibility is 2 to 4, and the color difference in fingerprint wipeability is 1 to 2, which is not largely generated. Accordingly, it can be confirmed that the sensory test has also passed.
-
FIG. 5 is a photograph of a hairline formed according to an embodiment of the present disclosure. - The hairline of
FIG. 5 was processed by plating a copper plating layer of 15 μm, a nickel plating layer of 7 μm, and a chromium plating layer of 0.42 μm on 20 mm of aluminum as a base material, tilting the tilting angle of the hairline processing wheel by 4° in the z-axis direction during hairline processing and applying a pressure of 1.30 A. In addition, as a coating paint, a coating paint containing 0.1 to 0.8% cyclohexyl(methoxy)(methyl)(phenyl)silane and 99.0 to 99.9% alcohol was used. The coating was cured at room temperature for 1 hour after spraying once reciprocating on the hairline-processed chromium plating layer using the above-described coating paint. As a result of photographing the hairline of the home appliance manufactured as described above, it can be seen that the hairline is processed in the transverse direction as shown inFIG. 5 . - As described above, according to the disclosed embodiment, it is possible to process the hairline in the transverse direction and at the same time secure corrosion resistance and anti-fingerprint properties.
- The embodiments described in the present specification and the configurations shown in the drawings are only preferred examples of the disclosure, and there may be various modified examples that may replace the embodiments and drawings of the present specification at the time of filing of the present application.
- In addition, terms used in the present specification are used to describe the embodiments, and are not intended to limit and/or limit the disclosed invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this specification, terms such as “comprise” or “include” are intended to designate the presence of features, numbers, steps, actions, components, parts, or a combination thereof described in the specification, but does not preclude the presence or addition of one or more other features or numbers, steps, actions, components, parts, or combinations thereof.
- In the above, specific embodiments have been illustrated and described. However, it is not limited only to the above-described embodiments, and those of ordinary skill in the art to which the invention pertains will be able to perform various changes without departing from the gist of the technical idea of the invention described in the following claims.
Claims (15)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2018-0038374 | 2018-04-02 | ||
KR1020180038374A KR102602352B1 (en) | 2018-04-02 | 2018-04-02 | Home Appliance including Hairline and Methods for Manufacturing Method thereof |
PCT/KR2018/013656 WO2019194383A1 (en) | 2018-04-02 | 2018-11-09 | Home appliance including hairline and manufacturing method therefor |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/KR2018/013656 A-371-Of-International WO2019194383A1 (en) | 2018-04-02 | 2018-11-09 | Home appliance including hairline and manufacturing method therefor |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US18/086,384 Division US20230124298A1 (en) | 2018-04-02 | 2022-12-21 | Home appliance including hairline and manufacturing method thereof |
Publications (1)
Publication Number | Publication Date |
---|---|
US20210047746A1 true US20210047746A1 (en) | 2021-02-18 |
Family
ID=68100871
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US17/043,865 Abandoned US20210047746A1 (en) | 2018-04-02 | 2018-11-09 | Home appliance including hairline and manufacturing method thereof |
US18/086,384 Pending US20230124298A1 (en) | 2018-04-02 | 2022-12-21 | Home appliance including hairline and manufacturing method thereof |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US18/086,384 Pending US20230124298A1 (en) | 2018-04-02 | 2022-12-21 | Home appliance including hairline and manufacturing method thereof |
Country Status (3)
Country | Link |
---|---|
US (2) | US20210047746A1 (en) |
KR (1) | KR102602352B1 (en) |
WO (1) | WO2019194383A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112086041A (en) * | 2020-09-09 | 2020-12-15 | 郑杰 | LOGO standard production process |
KR102461347B1 (en) | 2021-09-07 | 2022-10-31 | 주식회사 프로맥스 | Continuous Manufacturing Apparatus and Its Method for Transverse Scratching Pattern on the Surface of Thin Profile Material, and Thin Profile Material with Transverse Surface Scratching Pattern Processed by the Same |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101020635B1 (en) * | 2008-08-07 | 2011-03-09 | 알티전자 주식회사 | Method for treating surface of forming article by die casting |
JP5896131B2 (en) * | 2012-02-16 | 2016-03-30 | 三光産業株式会社 | Surface treatment equipment |
KR101568480B1 (en) * | 2013-11-18 | 2015-11-11 | 주식회사 포스코 | Metal member having high gloss and method for manufacturing the same |
KR101510555B1 (en) * | 2013-11-18 | 2015-04-09 | 주식회사 포스코 | Metal member having excellent image clarity |
KR20150062617A (en) * | 2013-11-29 | 2015-06-08 | 포스코강판 주식회사 | Work roll manufacturing apparatus and surface treatment apparatus using the same |
KR20150134194A (en) * | 2014-05-21 | 2015-12-01 | 주식회사 위스코하이텍 | Method for surface treatment of base metal |
KR101952818B1 (en) * | 2017-09-25 | 2019-02-28 | 주식회사포스코 | Low alloy steel sheet with high strength and ductility and method of manufacturing same |
-
2018
- 2018-04-02 KR KR1020180038374A patent/KR102602352B1/en active IP Right Grant
- 2018-11-09 WO PCT/KR2018/013656 patent/WO2019194383A1/en active Application Filing
- 2018-11-09 US US17/043,865 patent/US20210047746A1/en not_active Abandoned
-
2022
- 2022-12-21 US US18/086,384 patent/US20230124298A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
WO2019194383A1 (en) | 2019-10-10 |
US20230124298A1 (en) | 2023-04-20 |
KR102602352B1 (en) | 2023-11-17 |
KR20190115379A (en) | 2019-10-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US20230124298A1 (en) | Home appliance including hairline and manufacturing method thereof | |
JP6447800B1 (en) | Plated steel | |
JP6733839B2 (en) | Zinc-based electroplated steel sheet | |
US20060198988A1 (en) | Coated metal article and method of making same | |
CN102227309B (en) | Coated metallic material, and method for producing same | |
TWI276478B (en) | Precoated metal sheet and method of production of precoated metal sheet | |
TWI748117B (en) | Pretreatment agent, metal material and manufacturing method thereof | |
JP6540930B1 (en) | Zinc-based electroplated steel sheet | |
TW201536965A (en) | Plated steel | |
CN107012419A (en) | Method and corresponding metallic plate for producing the metallic plate with oiling Zn Al Mg coatings | |
Farzaneh et al. | Evaluation effect of electrodeposition parameters on superhydrophobicity and corrosion performance of nickel coatings | |
US20240149394A1 (en) | Method for producing textured plated steel sheet, and apparatus for producing textured plated steel sheet | |
JP7029150B2 (en) | Low-gloss chemically colored stainless steel processed products coated with a transparent coating film and their manufacturing methods | |
TWI374088B (en) | ||
TW201545862A (en) | Coated metal sheet, method for manufacturing same, and exterior building material | |
JP2019119203A (en) | Coated metal plate | |
JP7401735B2 (en) | plated steel plate | |
JP5051765B2 (en) | Color unevenness evaluation method for metallic coatings | |
KR102327299B1 (en) | Spray coating method for forming coating layer on cooking utensil | |
EP3901332B1 (en) | Electroplated steel sheet having excellent surface appearance, and manufacturing method therefor | |
KR20240089774A (en) | plated steel plate | |
CN217385026U (en) | Putty flexibility apparatus | |
JP4086149B2 (en) | Blackened zinc-plated steel sheet with excellent design | |
US20040048093A1 (en) | Sn-based metal-coated steel strip excellent in appearance and process for producing same | |
KR20210152501A (en) | galvanized steel |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: SAMSUNG ELECTRONICS CO., LTD., KOREA, REPUBLIC OF Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:LEE, KYUNG HWAN;SONG, JI YOUNG;KIM, KWANG JOO;AND OTHERS;REEL/FRAME:053931/0813 Effective date: 20200929 |
|
STPP | Information on status: patent application and granting procedure in general |
Free format text: APPLICATION DISPATCHED FROM PREEXAM, NOT YET DOCKETED |
|
STPP | Information on status: patent application and granting procedure in general |
Free format text: DOCKETED NEW CASE - READY FOR EXAMINATION |
|
STPP | Information on status: patent application and granting procedure in general |
Free format text: NON FINAL ACTION MAILED |
|
STPP | Information on status: patent application and granting procedure in general |
Free format text: RESPONSE TO NON-FINAL OFFICE ACTION ENTERED AND FORWARDED TO EXAMINER |
|
STPP | Information on status: patent application and granting procedure in general |
Free format text: NON FINAL ACTION MAILED |
|
STPP | Information on status: patent application and granting procedure in general |
Free format text: RESPONSE TO NON-FINAL OFFICE ACTION ENTERED AND FORWARDED TO EXAMINER |
|
STPP | Information on status: patent application and granting procedure in general |
Free format text: FINAL REJECTION MAILED |
|
STPP | Information on status: patent application and granting procedure in general |
Free format text: ADVISORY ACTION MAILED |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |