Abstract: The present invention performs special heat treatment on a polymer film in a temperature range from (i) a lower limit to temperature rise being equal to or higher than a starting temperature of thermal decomposition of the polymer film, i.e., which is a temperature observed at an early stage of the thermal decomposition of the polymer film, to (ii) an upper limit to temperature rise being equal to or lower than an intermediate temperature of thermal decomposition of the polymer film. This reduces foaming in the film during graphitization treatment following the special heat treatment. Thus, even with a higher heating rate for graphitization, it is possible to produce a graphite film having good quality.

Abstract: A graphite film with fewer wrinkles and/or undulations is obtained providing two or more stages of heating space and carrying out continuous baking. Especially when a cooling space is provided between each of the heating spaces and another, a graphite film can be obtained which is excellent in flatness and has a high thermal diffusivity.

Abstract: Disclosed herein is a production method capable of efficiently producing a carbonized film wound into a roll without the occurrence of fusion bonding between the layers of the film. The method includes a carbonization step in which a polymer film wound around a core is placed in a heating furnace and carbonized by heat treatment to obtain a carbonized film wound around the core. The carbonization step is performed by increasing a temperature of the heat treatment from an initial temperature through a pyrolysis onset temperature to a pyrolysis end temperature. In the carbonization step, the heating furnace is decompressed when the temperature of the heat treatment is lower than the pyrolysis onset temperature, and after the temperature of the heat treatment reaches the pyrolysis onset temperature, the heating furnace is not decompressed or the heating furnace is decompressed so that an absolute pressure in the heating furnace is in a range of 21.3 kPa to 101.29 kPa.

Abstract: A graphite film which is low in graphite dust generation can be produced by properly selecting acid dianhydride and diamine which constitute a polyimide film, which polyimide film is a raw material of the graphite film. Specifically, the graphite film which is low in graphite dust generation can be obtained if (1) the acid dianhydride is PMDA and the diamine has a molar ratio of ODA/PDA in a range of 100:0 to 80:20, or (2) the acid dianhydride has a molar ratio of PMDA/BPDA in a range of 80:20 to 50:50, and the diamine has a molar ratio of ODA/PDA in a range of 30:70 to 90:10.

Abstract: When a raw material graphite film bad in flatness is laminated onto another material, creases and other defects may be caused. In particular, when a graphite film having a large area is laminated, defects such as creases may be often caused. In order to solve such defects, a flatness correction treatment step is performed wherein a raw material graphite film is subjected to heat treatment up to 2000° C. or higher while a pressure is applied thereto. This flatness correction treatment gives a graphite film good in flatness. Furthermore, when the flatness of the raw material graphite film is corrected by use of a thermal expansion of a core, a graphite film small in sagging can be obtained.

Abstract: A graphite film showing an extremely low average tearing force is more likely to suffer from various kinds of defects, such as splitting, winding deviation, wrinkling, and poor dimensional accuracy, in a step of producing the graphite film and in a step of processing the graphite film. However, these defects can be prevented by using a graphite film that satisfies the following requirements: 1) having an average tearing force of not more than 0.08 N as determined by Trouser tear method in accordance with JIS K7128; and 2) having sag of not less than 5 mm and not greater than 80 mm as determined by a method of film windability evaluation in accordance with JIS C2151.

Abstract: Provided is a long and large-area graphite film having improved thermal diffusivity and flex resistance, and accompanied by ameliorated ruffling. According to a method for producing a graphite film, in which graphitization of a heat-treated film consisting of a carbonized polymer film is carried out in a state being wrapped around an internal core, the method being characterized in that a heat treatment is executed by controlling distance(s) between the internal core and the film, and/or between the layers of the film, a graphite film accompanied by significantly ameliorated ruffling can be obtained.

Abstract: In a method for producing a carbonaceous film in which a polymer film is wrapped around a core and is subjected to a heat treatment, material film surfaces during the carbonization step are prevented from fusion, whereby a long carbonaceous having a large area film is obtained. Fusion can be prevented by subjecting a polymer film to a heat treatment under a reduced pressure, and under a reduced pressure while allowing an inert gas to flow. The range of the pressure reduction is preferably ?0.08 MPa to ?0.01 kPa. It is preferred to carry out carbonization with the pressure reduced in the range of from ?0.08 MPa to ?0.01 kPa while allowing an inert gas to flow.

Abstract: A fire barrier system for use in aircraft, ship or offshore drilling platform comprises a flexible graphite sheet. Methods of providing fire barrier protection in an aircraft, ship or offshore drilling platform comprise installing the described fire barrier system in the aircraft, ship or offshore drilling platform. Additionally, the fire barrier system when installed in the aircraft, ship or offshore drilling platform is described.

Abstract: Methods of providing fire barrier protection comprise installing a fire barrier system comprising a flexible graphitized polymer sheet in a structure. Additionally, the fire barrier system installed in a structure is described.

Abstract: A method for manufacturing a sub-harness comprises the steps of: holding a first connector housing in a guiding device for terminal insertion; holding a second connector housing in a continuity check tool; bringing a terminal at a first end of an electric wire with terminals at the both ends thereof into contact with a touch contact to make a specified light emitter of light emitters in the guiding device emit, said touch contact being connected to the guiding device via a main control device, said touch contact having a curved contact surface; inserting the terminal at the first end into a specified terminal-receiving chamber of terminal-receiving chambers in the first connector housing to bring the terminal at the first end into contact with a specified terminal contact of terminal contacts in the guiding device, said specified chamber being illuminated by said light emitter; and checking continuity between terminals at the first end and at a second end of the electric wire with a continuity check contro

Abstract: A method for manufacturing a sub-harness comprises the steps of: holding a first connector housing in a guiding device for terminal insertion; holding a second connector housing in a continuity check tool; bringing a terminal at a first end of an electric wire with terminals at the both ends thereof into contact with a touch contact to make a specified light emitter of light emitters in the guiding device emit, said touch contact being connected to the guiding device via a main control device, said touch contact having a curved contact surface; inserting the terminal at the first end into a specified terminal-receiving chamber of terminal-receiving chambers in the first connector housing to bring the terminal at the first end into contact with a specified terminal contact of terminal contacts in the guiding device, said specified chamber being illuminated by said light emitter; and checking continuity between terminals at the first end and at a second end of the electric wire with a continuity check control d

Abstract: An apparatus that can perform checking terminal lock in a connector housing securely are provided. The apparatus for checking terminal lock (1) includes a main body (8), a housing set portion (19) so as to be disposed in the main body (8) to move freely in a direction of inserting and extracting a terminal, and push means (6) for pushing the housing set portion (19) in the direction of inserting the terminal. On condition that a connector housing (2) is secured in the housing set portion (19) pushed by push means (6) and the terminal connected with a wire is inserted into the connector housing (2), terminal lock is checked by pulling the wire in a direction of extracting the terminal.

Abstract: A method for manufacturing a sub-harness comprises the steps of:

Abstract: A copper foil for an inner layer circuit of a multi-layered printed circuit board, which comprises a black metal plated layer formed on at least the rough surface which becomes a surface of an inner layer circuit of a copper foil having both sides roughened in advance, in order to enhance the bonding strength to a prepreg, make it safe from haloing and facilitate optical checking of the copper foil.