Abstract: Disclosed herein is a method of manufacturing a wheel nut. The method includes annealing an aluminum (Al) alloy material and preheating the annealed Al alloy material. The Al alloy material is also forged to form a wheel nut. Furthermore, the method includes performing an anodizing treatment to form a primary coating on the wheel nut and performing a vacuum deposition to form a secondary coating on the wheel nut. In addition, the method includes performing a surface treatment using powder paint to form a tertiary coating on the wheel nut.

Abstract: A differential carrier case with an inserted pipe for high pressure casting may include a mold core into which a first end of a pipe is inserted, a mold core pin fixed to the mold core to fix the mold core and the first end of the pipe, a drive core pin inserted into a second end of the pipe, and a thick portion surrounding an outer portion of the pipe.

Abstract: A differential carrier case with an inserted pipe for high pressure casting may include a mold core into which a first end of a pipe is inserted, a mold core pin fixed to the mold core to fix the mold core and the first end of the pipe, a drive core pin inserted into a second end of the pipe, and a thick portion surrounding an outer portion of the pipe.

Abstract: The present invention relates to an aluminum alloy for diecasting having improved thermal conductivity and castability. Provided herein is an aluminum alloy for diecasting having improved thermal conductivity and castability by forming an aluminum alloy containing about 10.0 wt % to about 12.0 wt % of silicon (Si), about 0.5 wt % to about 0.8 wt % of iron (Fe), about 0.3 wt % or less of impurities, and remainder of aluminum (Al), a heat sink for a battery manufactured using the aluminum alloy for diecasting, and a manufacturing method thereof.

Abstract: A core pin is provided that prevents a molten metal from flowing into a pipe and a casting device using the same is also provided. The core pin specifically contacts a first end of the pipe inserted into a mold to close the end of the pipe, to thus prevent the molten metal from flowing into the pipe.

Abstract: Disclosed is a method for manufacturing a light-reflection aluminum door frame molding which comprises a multi-coating-applied aluminum material to thereby improve corrosion resistance and reduce costs. A method for manufacturing a light-reflection aluminum door frame molding includes cutting a metallic plate into a predetermined size, performing anodizing on the metallic plate to form an oxidized film on a surface thereof, performing opaque clear coating and transparent coating on the metallic plate to implement light reflection, and performing press molding on the metallic plate to provide the metallic plate in the shape of a door frame molding.

Abstract: A mold apparatus for high pressure casting includes an upper mold having an internal space filled with a molten metal and a core pin elevating groove at an inner wall of the upper mold. A lower mold is disposed at a lower part of the upper mold and fixed with an insert. A core pin portion is elevatably installed in the core pin elevating groove to be elevated depending on a filling pressure of the molten metal filled in the internal space.

Abstract: A molten metal pouring device is configured to pour molten metal into a mold cavity formed between an upper mold and a lower mold of a centrifugal casting machine. The molten metal pouring device includes a pouring unit including an end formed with a pouring hole, through which the molten metal is poured into the mold cavity, the end of the pouring unit being inserted into a riser formed along a rotation axis of the upper mold and being drawn out of the riser as the molten metal is poured, a stopper inserted into the pouring unit to open and close the pouring hole so as to adjust the flow of the molten metal, and a base unit, to which the pouring unit is mounted, the base unit being configured to lift the pouring unit up and down.

Abstract: A core pin is provided that prevents a molten metal from flowing into a pipe and a casting device using the same is also provided. The core pin specifically contacts a first end of the pipe inserted into a mold to close the end of the pipe, to thus prevent the molten metal from flowing into the pipe.

Abstract: Disclosed herein is a method of manufacturing a wheel nut. The method includes annealing an aluminum (Al) alloy material and preheating the annealed Al alloy material. The Al alloy material is also forged to form a wheel nut. Furthermore, the method includes performing an anodizing treatment to form a primary coating on the wheel nut and performing a vacuum deposition to form a secondary coating on the wheel nut. In addition, the method includes performing a surface treatment using powder paint to form a tertiary coating on the wheel nut.

Abstract: The present application relates to a method of surface-treating an aluminum material for dissipating heat, which is capable of increasing the radiation heat flux to thus enhance heat dissipation performance, and includes anodizing an aluminum material using an electrolyte composed of oxalic acid, and forming cobalt sulfide (CoS) in surface pores of the aluminum material thus sealing the surface of the aluminum material.

Abstract: Disclosed is a method for manufacturing a light-reflection aluminum door frame molding which comprises a multi-coating-applied aluminum material to thereby improve corrosion resistance and reduce costs. A method for manufacturing a light-reflection aluminum door frame molding includes cutting a metallic plate into a predetermined size, performing anodizing on the metallic plate to form an oxidized film on a surface thereof, performing opaque clear coating and transparent coating on the metallic plate to implement light reflection, and performing press molding on the metallic plate to provide the metallic plate in the shape of a door frame molding.

Abstract: Disclosed herein is a method of manufacturing a wheel nut. The method includes annealing an aluminum (Al) alloy material and preheating the annealed Al alloy material. The Al alloy material is also forged to form a wheel nut. Furthermore, the method includes performing an anodizing treatment to form a primary coating on the wheel nut and performing a vacuum deposition to form a secondary coating on the wheel nut. In addition, the method includes performing a surface treatment using powder paint to form a tertiary coating on the wheel nut.

Abstract: A method of manufacturing an aluminum wheel for a vehicle includes preparing a low density material having particles pulverized. A binder is supplied to the low density material so that the low density material is mixed in a paste state. A wheel core manufacturing mold is heated to 200 to 350° C. and injected into the wheel core manufacturing mold. The wheel core manufacturing mold is closed, a pressure of about 5 to 20 bar is applied, the pressure is maintained for 1 to 5 minutes to solidify the low density material, and the wheel core is ejected. The ejected wheel core is mounted on an aluminum wheel casting mold. The aluminum wheel casting mold is closed, and a pressure of about 1 to 2 bar is applied, and an aluminum molten metal is injected. The aluminum wheel is then ejected from the aluminum wheel casting mold.

Abstract: Disclosed is a method for manufacturing a light-reflection aluminum door frame molding which comprises a multi-coating-applied aluminum material to thereby improve corrosion resistance and reduce costs. A method for manufacturing a light-reflection aluminum door frame molding includes cutting a metallic plate into a predetermined size, performing anodizing on the metallic plate to form an oxidized film on a surface thereof, performing opaque clear coating and transparent coating on the metallic plate to implement light reflection, and performing press molding on the metallic plate to provide the metallic plate in the shape of a door frame molding.

Abstract: The present invention provides a method for manufacturing the doorbelt molding including: forming an anodized layer on a surface of an aluminum alloy plate by performing an anodizing treatment on the aluminum alloy plate; forming a clear coating layer on the anodized layer by performing a clear coating treatment on the aluminum alloy plate on which the anodized layer is formed; molding a sectional shape of an outer frame by roll-forming the aluminum alloy plate over which the anodized layer and the clear coating layer are formed; forming a molding intermediate member in which the outer frame and an inner molding are integrally formed by integrally injection-molding a synthetic resin into the outer frame formed by the roll-forming, wherein the synthetic resin is a material of the inner molding; bending and cutting the molding intermediate member to manufacture the doorbelt molding.

Abstract: The present invention provides a method for manufacturing the doorbelt molding including: forming an anodized layer on a surface of an aluminum alloy plate by performing an anodizing treatment on the aluminum alloy plate; forming a clear coating layer on the anodized layer by performing a clear coating treatment on the aluminum alloy plate on which the anodized layer is formed; molding a sectional shape of an outer frame by roll-forming the aluminum alloy plate over which the anodized layer and the clear coating layer are formed; forming a molding intermediate member in which the outer frame and an inner molding are integrally formed by integrally injection-molding a synthetic resin into the outer frame formed by the roll-forming, wherein the synthetic resin is a material of the inner molding; bending and cutting the molding intermediate member to manufacture the doorbelt molding.

Abstract: Disclosed is an aluminum wheel comprising: Al as a major ingredient, Si: about 0˜2 wt % (excluding 0), Fe: about 0˜0.15 wt% (excluding 0), Cu : about 0.5˜1 wt %, Mn: about 0.03˜0.2 wt %, Mg: about 0.8˜1.2 wt %, Cr: about 0.05˜0.35 wt %, Zn: about 0.2˜0.6 wt %, Ti: about 0.01˜0.1 wt %, Sr: about 0.001˜0.05 wt %, P: about 0˜0.001 wt % (excluding 0) and inevitable impurities; and a method for producing the same.

Abstract: Disclosed herein is a method of manufacturing a wheel nut. The method includes annealing an aluminum (Al) alloy material and preheating the annealed Al alloy material. The Al alloy material is also forged to form a wheel nut. Furthermore, the method includes performing an anodizing treatment to form a primary coating on the wheel nut and performing a vacuum deposition to form a secondary coating on the wheel nut. In addition, the method includes performing a surface treatment using powder paint to form a tertiary coating on the wheel nut.

Abstract: The present invention provides a method for manufacturing the doorbelt molding including: forming an anodized layer on a surface of an aluminum alloy plate by performing an anodizing treatment on the aluminum alloy plate; forming a clear coating layer on the anodized layer by performing a clear coating treatment on the aluminum alloy plate on which the anodized layer is formed; molding a sectional shape of an outer frame by roll-forming the aluminum alloy plate over which the anodized layer and the clear coating layer are formed; forming a molding intermediate member in which the outer frame and an inner molding are integrally formed by integrally injection-molding a synthetic resin into the outer frame formed by the roll-forming, wherein the synthetic resin is a material of the inner molding; bending and cutting the molding intermediate member to manufacture the doorbelt molding.