摘要:
A take-out roller (4) which rotates and contacts a paper sheet (P) supplied to a take-out position has an outer layer (42) to contact the paper sheet (P) and an inner layer (44) provided inside the outer layer. The outer layer (42) is made of relatively hard rubber material with a sufficient coefficient of kinetic friction. The inner layer (44) is made of relatively soft non-foamed rubber material deformable by a relatively weak force. When the take-out roller (4) contacts the paper sheet (P) supplied to the take-out position in the inclined state, the inner layer (44) is largely deformed, and the outer surface of the outer layer (42) stably contacts the surface of the paper sheet (P).
摘要:
A sheet processing apparatus takes out postal matters that are inserted by a take-out roller, and separates them in sheets by a feed roller (21) and a reversing roller (22), and feeds into the apparatus. A cleaning roller (27) having rubber sponges having foamed vesicles in mean diameter 50 to 500 µm is provided to the feed roller (21) in contact with it. Paper-dusts on the surfaces of the feed roller (21) and the reversing roller (22) are removed by driving this cleaning roller (27) to rotate at a velocity equal to or higher than a rotating speed of the feed roller (21).
摘要:
{W - Cu x Sb - balance Cu} alloy is employed for contacts. As the anti-arcing constituent in the alloy W or WMo in a content of 65 to 85%, of grain diameter 0.4 to 9 µm is employed. As auxiliary constituent, Cu x Sb is employed, the content of the Cu x Sb being 0.09 to 1.4 weight%, the x being x=1.9 to 5.5, the grain diameter being 0.02 to 20 µm, and the mean distance between grains being 0.2 to 300 µm. As conductive constituent, Cu or CuSb solid solution is employed, the Sb content present in solid solution form in the CuSb solid solution being less than 0.5%. As a result, not only is dispersion of Cu x Sb, which is evaporated on subjection to arcing, reduced, but also generation of severe cracks, which have an adverse effect in terms of occurrence of restriking. Arcing at the contacts surfaces is prevented, suppressing dispersion and exfoliation of W grains. In this way, damage due to melting and dispersion at the contacts surfaces is reduced, enabling both restriking to be prevented and the contact resistance characteristic to be improved.
摘要:
{W - Cu x Sb - balance Cu} alloy is employed for contacts. As the anti-arcing constituent in the alloy W or WMo in a content of 65 to 85%, of grain diameter 0.4 to 9 µm is employed. As auxiliary constituent, Cu x Sb is employed, the content of the Cu x Sb being 0.09 to 1.4 weight%, the x being x=1.9 to 5.5, the grain diameter being 0.02 to 20 µm, and the mean distance between grains being 0.2 to 300 µm. As conductive constituent, Cu or CuSb solid solution is employed, the Sb content present in solid solution form in the CuSb solid solution being less than 0.5%. As a result, not only is dispersion of Cu x Sb, which is evaporated on subjection to arcing, reduced, but also generation of severe cracks, which have an adverse effect in terms of occurrence of restriking. Arcing at the contacts surfaces is prevented, suppressing dispersion and exfoliation of W grains. In this way, damage due to melting and dispersion at the contacts surfaces is reduced, enabling both restriking to be prevented and the contact resistance characteristic to be improved.
摘要:
A lapping surface plate consisting of an Fe-base material containing 0.8 to 3.5 wt% of C, 1 to 7 wt% of Si, 5 to 15 wt% of Ni, and 1 wt% or less of Mn, the balance substantially being Fe, further containing 0.1 wt% or less of at least one element selected from the group consisting of Mg, Ca, and Ce, and having a graphite structure and a hardness of 250 Hv or more. Such a plate can be produced without quenching or rapid cooling to provide better accuracy and longer life in lapping operations upon e.g. semiconductor substrates.