Abstract: A precast refractory block for a coke oven having high hot strength and stable under-load expansion/shrinkage behavior at high temperatures. Specifically, a silica-based precast refractory block contains a P2O5 component in an amount of 0.3 to 2.0 mass %.

Abstract: A method for producing a coaxial cable structure that involves removing jacket layers in the vicinity of a cut end portion of the coaxial cable structure to expose shielding layers and cutting the shielding layers to a determined length to expose the dielectric layers. The exposed shielding layers are then put between metal ground bars so that the cut ends of the exposed shielding layers are not projected from the metal ground bars. The metal ground bars are then fixed with solder onto the shielding layers and the dielectric layers arranged at determined intervals.

Abstract: An end-processed coaxial cable structure includes a plurality of coaxial cables, each having i) a central conductor surrounded by a dielectric layer, ii) a shielding layer surrounding the dielectric layer, and iii) a jacket layer surrounding the shielding layer. End portions of the coaxial cables have jacket layers removed to expose shielding layer end portions. Metal ground bars are fixed with solder to the shielding layer end portions. The shielding layer end portions are shorter than a width of the metal ground bars so that the shielding layer end portions do not project to the outside of the metal ground bars.

Abstract: In an end-processed coaxial cable structure in which at least one end of a coaxial cable assembly formed by paralleling a plurality of coaxial cables is cut, jacket layers are removed in the vicinity of a cut end portion thereof to expose shielding layers, the shielding layers are further cut to a determined length to expose dielectric layers, the exposed shielding layers are put between metal ground bars to cover them, and the metal ground bars are fixed with solder onto the shielding layers and the dielectric layers arranged at determined intervals, cut ends of the shielding layers exist substantially inside the metal ground bars and are not projected to the outside thereof.