摘要:
A screw-type rotary fluid machine such as a compressor or a vacuum pump has male and female rotors which rotate within a casing, with or without mutual contact. At least one of the male and female rotors being surface-treated to have a treated surface structure. The treated surface structure is a multi-layered structures composed of a plurality of layers including a non-electrolytic Ni plating layer and at least one covering layer of organic resin. The organic resin may be one or more kinds selected from a group of engineering plastics, so as to improve mechanical strength.
摘要:
A method treating a surface of rotors in a screw-type rotary fluid machine, with the method comprising the steps of: conducting a non-electrolytic Ni plating on the surface of each rotor so as to form a first layer of non-electrolytic Ni plating layer; heating the rotor having the first layer at a temperature not lower than 500.degree. C.; and forming, at least, a second layer of an organic resin so as to cover the first layer.
摘要:
In a sealed structure consisting of ceramic members opposing each other and a frame coupled to the ceramic members and defining an He-tight chamber with the ceramic members, the melting point of a joint member for bonding one of the ceramic members to the frame is lower than the melting point of another joint member for bonding the other of the ceramic members to the frame so that rebonding can be made.
摘要:
The present invention relates to a method for bonding a non-oxide ceramic to a metal through an intermediate material comprising at least one member selected from metals of the Groups VIa and VIII of the Periodic Table. This method is suitably used for bonding of a structural part of a machine, an electronic part and the like.
摘要:
An image display apparatus for displaying an image of an object on a screen by using a projector includes a three-dimensional image display unit having a plurality of screens overlaid but spaced apart from one another, each of the screens diffusing and reflecting part of the light incident thereon and transmitting the remainder of the light, and an image projection unit having a plurality of projectors, each of the projectors is assigned to the corresponding one of the screens and projects an image of the object on the screen. The image projection unit displays a three-dimensional image of the object in the three-dimensional image display unit by projecting on the screens the shapes of the object in sectioning positions corresponding to the positions of the screens.
摘要:
A polyolefin resin composition comprising (A) an ethylene-based polyolefin having a density of 0.865 to 0.980 g/cm3 and MFR of 0.01 to 50 g/10 min, (B) a phosphorous compound, and (C) at least one heat stabilizer selected from the group consisting of a phenol-based heat stabilizer and a tocopherol-based heat stabilizer. The polyolefin resin composition has excellent heat resistance, moisture resistance and discoloration resistance, and also when used as a packaging material, does not impair the taste of contents to be packaged, such as flavor or odor, and therefore does not impair the taste of the contents.
摘要:
An oil groove is provided in a space surrounded with the outer peripheral portion of an end plate of a revolving scroll, a stationary scroll and a frame on the inner surface of the frame, and lubricating oil attached to the inner surface of the frame by splashed with rotation of the balancing weight is reserved in the oil groove and then supplied to a key groove for sliding an Oldham-ring.
摘要:
The present invention relates to a heater unit for the automobile air conditioner. The heater unit comprises a sensor group consisting of a plurality of sensors, mode selecting means for selecting one from at least two D/F modes above-mentioned, and control means for obtaining "target blowout tempeature (Tm)" based on input data from said sensor group and for selecting one out of said two D/F modes in which the rate of air through said foot outlet is greater, in the case where ambient air temperature taken by said sensor group is lower than the specified point corresponding thereto. In virtue of this, it contributed to improving air heating performance with window clouding prevented, in accordance with in- and out-car conditions.
摘要:
This reed for weaving is characterized in that a plurality of reed dents each having a hollow portion in a front edge section are arranged such that the hollow portions are communicated with each other so as to form guide grooves for the weft, the depths of the hollow portions of the reed dents located at least at one end portion are made larger than the depths of the hollow portions of the other reed dents, and that the nearer the central side in the weft insert direction, the smaller the depths of the hollow portions of the reed dents are made so as to become approximate to the depths of said hollow portions of the other reed dents, and further, areas including portions corresponding to the hollow portions in the rear edge section of the reed dents are projected backward.
摘要:
A tack-in apparatus is provided wherein injection ports are arranged at upper and lower sides of a weft yarn path, respectively. The injection ports inject currents for folding back an end portion of a cut weft yarn into a warp yarn opening on the weft yarn path which the weft yarn passes by a beating operation. Air guides projecting toward the warp yarn opening are formed at circumferential portions of the injection ports between the weft yarn path and the injection ports. The surfaces of the air guides which are on the sides of the injection ports are inclined toward the weft yarn path at front end portions of the air guides. In order to tack in the weft yarn end, the injection air currents are directed to the central portion of the warp yarn opening. This enables the weft yarn end to be transferred reliably, the tack-in operation to be carried out reliably, and the turbulence of the warp yarn to be reduced.