摘要:
Disclosed are aluminum alloy hollow materials and processes for producing the same wherein an aluminum alloy hollow material is produced by subjecting an ingot of an aluminum alloy containing 0.3˜1.5 wt % Mn to port hole extrusion or port hole extrusion and drawing-elongation processing and wherein a difference in electric conductivity between individual portions in lengthwise direction of the hollow material is not more than 1.0 IACS %. According to the aluminum alloy hollow materials, preferential corrosion in welding potions in port hole extrusion can be prevented.
摘要:
Disclosed are aluminum alloy hollow materials and processes for producing the same wherein an aluminum alloy hollow material is produced by subjecting an ingot of an aluminum alloy containing 0.3˜1.5 wt % Mn to port hole extrusion or port hole extrusion and drawing-elongation processing and wherein a difference in electric conductivity between individual portions in lengthwise direction of the hollow material is not more than 1.0 IACS %. According to the aluminum alloy hollow materials, preferential corrosion in welding potions in port hole extrusion can be prevented.
摘要:
A laminated structural body is manufactured by laminating unidirectionally arranged strands and a web such that two layers of the web sandwich the strands therebetween. A cylindrical web is delivered in a direction parallel to a central axis thereof. A polymer liquid is discharged from a spinning head, which is disposed in the cylindrical web and rotated about the central axis of the cylindrical web, toward an inner surface of the cylindrical web to spin strands of the discharged polymer liquid. The spun strands are arranged in a direction substantially parallel to the circumferential direction of the cylindrical web and laminated on the inner surface of the cylindrical web. The cylindrical web with the strands laminated thereon is folded flatwise to sandwich the strands between the two folded layers of the web.
摘要:
Provided is a terminating connector that can connect probes to a terminal connected with desired cable cores without removing the terminating connector. One aspect provides a terminating connector comprises a plurality of terminals having a contact portion and a lead wire contact portion, a housing having a plurality of probe insertion portions and receiving the terminals, and a resistor element received in the housing and electrically connected to the terminals, wherein at least a part of the terminals is positioned in the probe insertion portions.
摘要:
To provide an attachment for a socket which can cope with automatic testing of the IC devices, and which can enhance the radiation of heat from the IC devices despite of its reduced size, as well as to provide a semiconductor device-testing unit having the same. An attachment 15 for a socket used together with an IC socket 1 for connecting a BGA chip 10 to a testing circuit, to test the BGA chip 10 for its performance, wherein provision is made of a pair of heat sinks 19 of a half-split structure that come in contact with the surface of the BGA chip 10 to remove the heat generated by the BGA chip 10.
摘要:
The present invention provides compositions for blending in hair treating agents which can prepare hair conditioners, waving agents, finishing agents or thickening agents used on preparing hair treating agents easily by lower cost. Further, the present invention provides hair treating agents which are excellent in the features of feeling at actual use such as moist feel, slippery feel, slightly oily feel, good feeling to hair, brilliance, suppleness, soft feel and smooth combing and excellent in the features of hair treating agents such as less damage for hair (protective ability of hair), absorbency-penetration-fixing ability-spreading ability, wetting ability and smooth forming of wave without unevenness and tight and protection for generation of static electricity, by containing cationic surfactants or nonionic surfactants.
摘要:
A high recording density magnetic recording medium including a non-magnetic base film, a magnetic layer, and an undercoat layer provided therebetween. The undercoat layer includes non-magnetic particles, a binder resin, and a lubricant. The non-magnetic particles comprise (1) a non-magnetic iron oxide with an acicular ratio ranging from 5 to 10 and a long axis length ranging from 0.05 to 0.3 .mu.m, and (2) a carbon black having a structure constitution, and the weight ratio between said non-magnetic iron oxide and said carbon black is within the range between 85/15 and 99/1.
摘要:
In a method and system of measuring an image area, a solid portion corresponding to a portion having a 100% dot ratio in offset printing is formed in a margin of a printing plate, and a blank portion corresponding to a portion having a 0% dot ratio in offset printing is also formed in the margin of the printing plate. Electrical signals obtained from the solid and blank portions are used as reference values for 100% and 0% dot ratios, respectively. Electrical signals obtained from an image bearing portion of the printing plate are converted to image area percentage data in accordance with these reference values irrespective of a nonuniform surface density of the printing plate.
摘要:
The object of the present invention is to provide an IC socket having a constitution for simplifying the motion of an activating member for operating a lever, whereby the operation of the lever may be easily applied to an automated machine. A lever member 35 having the bifurcated shape includes first and second legs 353 and 354. In the first position, the first leg 353 operably projects from the base 2 and the lid 3. On the other hand, the second leg 354 is contained in the lid 3. When the actuating member 5 is moved to rotate the lever member 35 from the first position to the second position, the first leg 353 is contained in the lid 3 and the second leg 354 operably projects from the base 2 and the lid 3.
摘要:
The present invention provides compositions blended in hair treating agents which can prepare a hair conditioner, a coloring agent, a waving agent, a finishing agent, a feeling improving agent, a perfume dispersing agent, a refreshner or a thickning agent easily and by lower price, further provides a hair treating agent which is excellent in hair treating feature, such as moist feel, slippery feel, wetting feeling, smooth feel, soft feel, slightly oily feel, rustle feeling, luster, supple, no stickiness, smooth combing, setting ability by containing alcohols.