摘要:
Provided is a sintered gear (1) as a sintered machine part, which is formed of a sintered compact (M′) and which rotates in conjunction with an input of a load from another member onto a radially outer surface while sliding with respect to a shaft (S) inserted along an inner periphery, in which the sintered compact (M′) includes an inner layer (2) containing Cu and an outer layer (3) sintered together with the inner layer (2) under a state of being held in contact with the inner layer (2), in which the outer layer (3) includes, as main components, Fe, Cu, and Sn as a low-melting-point metal, and a metal structure of the outer layer (3) includes, as main constituents, Fe structures and Cu—Sn alloy structures, which exist at a grain boundary of the Fe structures and bind the Fe structures to each other.
摘要:
Horizontally layered tablets, methods of making the horizontally layered tablets, and tableting equipment capable of producing the horizontally layered tablets are described. The horizontally layered tablets can be produced by simultaneously feeding a segregated flow of different compositions that form the respective layers of the tablet.
摘要:
The invention relates to a device for forming moldable bodies (57) from a moldable mass by means of a matrix grid (19), in which at least one cavity (21) is formed by lateral limiting elements (20), and at least one tool (17, 18) which compresses the moldable mass into the cavity (21). The inventive device is characterized by a compression partition (38) that can be displaced on the matrix grid (19) for portioning the moldable mass. Said compression partition (38) comprises lateral limiting elements (39) that correspond to the lateral limiting elements (20) of the matrix grid (19). The invention also relates to a method for forming moldable bodies (57) consisting of forming a moldable mass and guiding it to a matrix grid (19) such that it rests on the front face (45) of the lateral limiting elements (20) of the matrix grid (19). A compression partition (38) with lateral limiting elements (39), that correspond to the lateral limiting elements (20) of the matrix grid (19), is displaced towards the matrix grid (19) to reduce the part (14A) of the moldable mass on the lateral limiting elements (20) of the matrix grid (19) in the direction of a cavity (21) formed by the matrix grid (19) between the lateral limiting elements (20), thus portioning the moldable mass. At least one tool (17, 18) compresses the portions of the moldable mass in the cavity (21).
摘要:
This invention relates to a system and method for loading a plurality of powder materials into a magnetic compaction tool. The system and method employ a powder loader which guides the plurality of powder materials into predetermined locations in the magnetic compaction tool so that when the tool is electromagnetically energized, the plurality of powder materials are compacted to form a part having a plurality of densified metals formed by the plurality of powder materials.
摘要:
Apparatus is disclosed for producing composite cylinders having cylinder walls comprised of two adjacent diverse layers of metal material which are bonded together by application of radial forces thereto and then sintered to complete the bonding process. Mechanical locking of the layers is achieved by grain interlocking between the two layers of metal material.
摘要:
A pressing apparatus for the production of compacted bodies from different powdered materials which are filled layer by layer into a pressing die, is provided with a filling system comprising a plurality of filling frames or shoes which are movable by first driving means in a guideway laterally offset from the filling opening of the die, and by second driving means out of said guideway across the table of the apparatus to the filling opening and back to the guideway.
摘要:
Horizontally layered tablets, methods of making the horizontally layered tablets, and tableting equipment capable of producing the horizontally layered tablets are described. The horizontally layered tablets can be produced by simultaneously feeding a segregated flow of different compositions that form the respective layers of the tablet.
摘要:
A facility for using powder materials to produce a solid product having multiple layers includes a supply of powder material(s), a die for receiving the powder material(s) and shaping the solid product, the die being secured in a reversible manner to a die-holding table secured to the frame of the facility, and translatable upper and lower punches that engage with one another at the die to compress the powder material(s). The lower punch is connected to a system for uncoupling the members that provide the movement thereof, the system having a brake for limiting the downward travel of the lower punch to keep it in contact with the powder material contained in the die when producing the solid product to avoid the generation of additional compression during the receipt of powder material in the die during the intermediate filling phases for each layer of the product.
摘要:
This invention relates to a system and method for loading a plurality of powder materials into a magnetic compaction tool. The system and method employ a powder loader which guides the plurality of powder materials into predetermined locations in the magnetic compaction tool so that when the tool is electromagnetically energized, the plurality of powder materials are compacted to form a part having a plurality of densified metals formed by the plurality of powder materials.