Abstract: A method for manufacturing a high-torque hexagonal drill shank includes: firstly producing an air module, wherein the lower end of the air module is inserted into a molding cavity of a mold, a high-pressure air is injected into the air module, and the surface of the air module is provided with a plurality of air outlets; evenly mixing metal powder and an organic binder together; injecting obtained particulates in a heating-plasticizing state into the molding cavity by an injection molding machine to solidify and form a hexagonal drill shank blank; forming a non-cylindrical cavity inside the hexagonal drill shank blank under the action of the air module; removing the binder in the hexagonal drill shank blank by thermal decomposition; and, finally, obtaining a high-torque hexagonal drill shank by sintering and densifying.

Abstract: A high-capacity self-locking toolbox with three opening modes, which includes a box frame, a box cover, and a clamping base. The box frame includes an upper box frame and a lower box frame which are folded in the middle to make two pieces. The box cover includes an upper box cover and a lower box cover. The two box covers are respectively provided on an upper surface and a lower surface of the box frame. A reinforced rib surface is provided inside an inner wall of the box frame. The reinforced rib surface is provided with self-locking clamping members in pairs, and the clamping base is installed in the self-locking clamping members. The three opening modes enable the toolbox to be opened from the upper side, the lower side, or the middle, so as to have access to the tools from any side of the toolbox. The interior of the toolbox is designed in modular, the clamping base has a self-locking function, and the tools have a compact arrangement.

Abstract: A preparation process of a novel drill shank for an IMPACT gun drill, including: manufacturing a mold and a forming block, wherein a forming blind hole is formed in a middle of the mold, the forming block is inserted into the forming blind hole, a wire pipe is disposed in the mold, a feed port is formed in the forming block, a heating cavity is formed in a forming block lateral face and a forming post; manufacturing the forming block with a 2Cr25Ni20 material; injecting tin bronze powder and iron powder into the forming blind hole, starting vibration pressing by the forming block; inputting direct and pulse current to communicate with the metal powder and heat the metal powder at a same time; forming a drill shank blank after 2-3 min, taking out the drill shank blank; removing an adsorbing agent from the drill shank blank by an extraction method.

Abstract: A preparation process of a novel drill shank for an IMPACT gun drill, including: manufacturing a mold and a forming block, wherein a forming blind hole is formed in a middle of the mold, the forming block is inserted into the forming blind hole, a wire pipe is disposed in the mold, a feed port is formed in the forming block, a heating cavity is formed in a forming block lateral face and a forming post; manufacturing the forming block with a 2Cr25Ni20 material; injecting tin bronze powder and iron powder into the forming blind hole, starting vibration pressing by the forming block; inputting direct and pulse current to communicate with the metal powder and heat the metal powder at a same time; forming a drill shank blank after 2-3 min, taking out the drill shank blank; removing an adsorbing agent from the drill shank blank by an extraction method.

Abstract: A method for manufacturing a high-torque hexagonal drill shank includes: firstly producing an air module, wherein the lower end of the air module is inserted into a molding cavity of a mold, a high-pressure air is injected into the air module, and the surface of the air module is provided with a plurality of air outlets; evenly mixing metal powder and an organic binder together; injecting obtained particulates in a heating-plasticizing state into the molding cavity by an injection molding machine to solidify and form a hexagonal drill shank blank; forming a non-cylindrical cavity inside the hexagonal drill shank blank under the action of the air module; removing the binder in the hexagonal drill shank blank by thermal decomposition; and, finally, obtaining a high-torque hexagonal drill shank by sintering and densifying.

Abstract: A high-capacity self-locking toolbox with three opening modes includes a box frame, a box cover, and a clamping base. The box frame includes an upper box frame and a lower box frame which are folded in the middle to make two pieces. The box cover includes an upper box cover and a lower box cover. The two box covers are respectively provided on an upper surface and a lower surface of the box frame. A reinforced rib surface is provided inside an inner wall of the box frame. The reinforced rib surface is provided with self-locking clamping members in pairs, and the clamping base is installed in the self-locking clamping members. The three opening modes enable the toolbox to be opened from the upper side, the lower side, or the middle, so as to have access to the tools from any side of the toolbox. The interior of the toolbox is designed in modular, the clamping base has a self-locking function, and the tools have a compact arrangement.