摘要:
A die having large numbers of grooves for molding a material to a honeycomb structure, wherein a surface having the grooves has an outer periphery in a polygonal shape having 6 or more corners when the groove-having surface is viewed, and wherein the grooves are crossing the outer periphery at an angle of 30° or more.
摘要:
A compound barb medical device (12) comprising: an elongated body (14); at least one barb (12) extending from the elongated body and defining an inner surface, the inner surface including: a first portion (12a) disposed at a first orientation defining first angle ± relative to a longitudinal axis of the elongated body, a second portion (12b) disposed at a second orientation defining second angle ² relative to the longitudinal axis, and a third portion (12c) disposed at a third orientation defining third angle ³ relative to the longitudinal axis, wherein the second angle ² is less than the first angle ± and the third angle ³ is less than the second angle ².
摘要:
The present invention relates to a method of manufacturing a slag discharge door, which is provided separately from a molten-steel discharge opening in an electric furnace and opens and closes a slag discharge opening for discharging slag. The method of manufacturing the slag discharge door, which moves up and down on the slag discharge opening to open and close the slag discharge opening, includes the steps of: forming a door body by forging, forming a coolant passage, a coolant inlet, and a coolant outlet in the door body by drilling, and then finishing a passage that blocks a portion that is open toward an outer surface of the door body.
摘要:
A method for providing a disc (32) of a bladed rotor (30) for use in a gas turbine engine including the steps of determining the location of blade fixing slots (48) to be formed on the disc to receive the roots of respective blades, determining a virtual profile (58) of each slot (48) on the disc (32), and forming, prior to the slots (48) being formed in the disc (32), a narrow, axial pilot slot (60) centrally of the virtual profile (58) of each slot (48).
摘要:
A method for machining a metallic member to provide a finished appearance uses a lathe and a milling process. A metallic member comprising a top portion and a peripheral sidewall is provided, the metallic member is positioned on the worktable. The worktable is rotated with the metallic member, the lathe tool moved backwards and forwards to machine the top portion of the rotary metallic member circumferentially. The lathe tool is moved by the moving device along a predetermined path relative to the worktable to machine curved surfaces of the top portion of the metallic member. After rotation, the milling cutter is rotated, and resists the peripheral sidewall of the metallic member. The milling cutter is moved along a predetermined path, and the milling cutter is fed the metallic member to achieve the required shape and finish.