摘要:
A quicklime is treated by CO.sub.2 gas so as to form a CaCO.sub.3 film on the surface of the particle thereof. It serves to prevent moisture absorption so that a steel making process, especially for the production of low hydrogen steel, can be done very effectively with low cost by the use of this CO.sub.2 -treated lime.
摘要:
There is provided a polymer PTC device which has a further improved performance.Such PTC device comprises (A) a polymer PTC element containing (a1) an electrically conductive filler and (a2) a polymer material, and (B) at least one metal electrode disposed on at least one surface of the polymer PTC element, and the electrically conductive filler is an Ni alloy filler which has oxidation resistance under a high temperature and dry atmosphere, and the polymer material is a thermoplastic crystalline polymer.
摘要:
A PTC device is provided which is capable of surely functioning as the PTC device even in a wiring through which a large current flows. A combined PTC device (10, 10′) is composed of two PTC devices each containing a lamellar PTC element (12, 12′) which is composed of a polymeric PTC material and a pair of electrodes (14, 16; and 14′, 16′) which are arranged apart from each other on one side of the PTC element. The electrodes (14, 16) of one PTC device are respectively opposite to the electrodes (14′, 16′) of the other PTC device, and terminals (20, 21) are arranged between the respective opposite electrodes. The respective opposite electrodes and the terminal between them are electrically connected with each other.
摘要:
The present invention provides a PTC element having a novel structure and suitable for use in a starter circuit for a fluorescent lamp. The polymer PTC element (10) comprises a sheet-like body (1) made of a polymer PTC material, and the first and the second electrodes which are, for example, formed distant from each other on the same sheet surface of the sheet-like body (1) (the first electrodes 3a, 3b and the second electrodes 4a, 4b), wherein a clearance is formed between an inner wall of a through hole (7a, 7b) and a terminal (5a, 5b) as a space which at least partially traverses the sheet-like body (1) in its thickness direction.
摘要:
A PTC device is provided which is capable of surely functioning as the PTC device even in a wiring through which a large current flows. A combined PTC device (10, 10′) is composed of two PTC devices respectively comprising a lamellar PTC element (12, 12′) which is composed of a polymeric PTC material and a pair of electrodes (14,16; and 14′,16′) which are arranged apart from each other on one side of the PTC element. The electrodes (14, 16) of one PTC device are respectively opposite to the electrodes (14′, 16′) of the other PTC device, and terminals (20, 21) are arranged between the respective opposite electrodes. The respective opposite electrodes and the terminal between them are electrically connected with each other.
摘要:
The present invention provides a means in which contact between contacts in a “double-break (or double-make) contact structure” occurs in two places in the same state as much as possible. A contact structure includes two fixed members (110,112) each of which has a fixed contact (116,118) and a movable member (102) containing a movable contact (106) which contacts or separates from the fixed contact of each of the fixed members. The movable member is in the form of a strip as a whole, its one end is supported so as to allow the above mentioned contact and separation of the movable member, and the other end of the movable member has the movable contact, and the movable member has a narrowed section between its two ends.
摘要:
There is provided a more compact battery pack which is characterized in that the battery pack includes a PTC device (120) and a secondary battery which comprises a canister (100) and a sealing piece (102) which seals an opening of the canister wherein the sealing piece includes the PTC device which is attached on top of the sealing piece.
摘要:
There is provided a PTC device which allows compact connection as much as possible. Such PTC device includes a polymer PTC element (102) including (A) a polymer PTC component (112) an electrically conductive filler, and a polymer material; and (B) a metal electrode (104) placed on at least one surface of the polymer PTC component. Also present are a lead (106) of which at least a part is positioned on the metal electrode of the PTC element; a protective coating (108) which surrounds an exposed area of the PTC element, and a hardened solder paste which is present as a connection area (110) which electrically connects the metal electrode and said at least a part of the lead.
摘要:
There is provided a polymer PTC device which has a further improved performance.Such PTC device comprises (A) a polymer PTC element containing (a1) an electrically conductive filler and (a2) a polymer material, and (B) at least one metal electrode disposed on at least one surface of the polymer PTC element, and the electrically conductive filler is an Ni alloy filler which has oxidation resistance under a high temperature and dry atmosphere, and the polymer material is a thermoplastic crystalline polymer.
摘要:
The provision of an easily laterally opened type paper container includes: a paper base material which is made of material having thermoplastic resin layers on both sides thereof; an opening piece which is formed of a resin film, and sandwiched and bonded between an upper piece and a lower piece of an overlap width portion of the paper base material which is overlapped and laminated on each other with a picking length; a notch portion defined in the upper piece of said overlap width portion in correspondence with both ends of said opening piece laterally; and an oriented polyolefine film having such a characteristic that an orientation magnification of the film in one direction is larger than that in a direction orthogonal to the one direction, which is stacked on an inner surface of the paper container material in such a manner that the one direction having the larger orientation magnification coincides with an opening direction of the paper container.