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JP2643971B2 |
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JPH09217462A |
To provide centrifugal concrete for housing and basement capable of promoting long life, at the same time, supplying mechanically excellent members at a low cost with easy execution and promoting further economic efficiency in comparison...
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JP2640952B2 |
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JP2640323B2 |
PURPOSE: To efficiently produce a concrete product having a clean end surface. CONSTITUTION: After a hollow tubular concrete product 2 is molded by a core frame 3 and an outer frame 4, a press ring element 15 is pressed to the end surfac...
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JP2637345B2 |
PURPOSE: To automatically fasten flange fastening bolts by a method wherein a slide base is mounted on a track disposed on each side of a frame, a lifting support body and a horizontal support body are mounted on the base, and a manipula...
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JP2635570B2 |
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JP2635569B2 |
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JP2634674B2 |
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JP2635997B2 |
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JPH09194272A |
To provide an anticorrosive concrete pipe provided with an anticorrosive lining layer excellent in characteristic such as acid resistance and useful as a sewer pipe. A mixture consisting of 1-22wt.% alkoxysilyl group-contg. monomer shown...
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JPH09193127A |
To permit the pull-out of a core simply even when placed concrete is set and contracted by a method wherein the core for manufacturing a hollow concrete block is formed of a tubular shape memory alloy of iron series. A core 2, employed f...
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JPH09193130A |
To prevent the generation of variety in thickness, marks and variety in density by a method wherein slurry is cast after absorbing moisture under the saturated condition of a tubular molding die having moisture absorbing property while t...
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JPH09507463A |
Compositions, methods, and apparatus for manufacturing sheets having a highly inorganically filled matrix prepared by mixing together an organic polymer binder, water, one or more inorganic aggregate materials, fibers, and optional admix...
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JP2632770B2 |
PURPOSE: To straightly correct the center axis of an extruded material under the own wt. of the material after a material drying process. CONSTITUTION: A columnar or cylindrical extruded material W after a material drying process is plac...
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JP2633090B2 |
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JPH09174538A |
To obtain large flexural performance and ductility by a method wherein a steel bar having a specific yield strength and breaking elongation which are obtained by naturally air cooling steel product of a specific weight ration after hot r...
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JPH09174537A |
To obtain large flexural performance and ductility by giving prestress to a concrete by a method wherein a high strength bar having a specific yield strength is used, and the high strength bar is strained by a load of a specific ratio of...
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JPH09174535A |
To obtain method and apparatus for manufacturing a concrete pipe capable of finishing an inner face smoothly by a method wherein the inner face of the concrete pipe is finished by rotating a core frame. For two core frames 21, a plane cr...
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JP2625265B2 |
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JPH09164519A |
To improve the yield of a refractory cylindrical cast product of high quality uniform in filling density as a whole and eliminated in the possibility of the crack and damage caused by expansion difference. A process inclining a casting r...
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JP2622487B2 |
PURPOSE: To reduce the cost required to form a hollow part of a precast concrete column member. CONSTITUTION: Where a cylinder whose cross section is disk or similar, is vertically divided into two segments on a horizontal level includin...
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JPH09155845A |
To tighten and loosen a bolt while once stopping a form in an apparatus for automatically tightening and loosening the bolt nut of a split form molding a long concrete product to achieve the miniaturization and cost reduction of the appa...
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JP2619782B2 |
PURPOSE: To make the electing work of the fastener of a form unnecessary, facilitate the cleaning of a flange surface and contrive to save the labor required in the clamping and unclamping work. CONSTITUTION: A fastening rod 31 is nearly...
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JP2618684B2 |
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JPH09143547A |
To improve the durability of a pipe for skid for supporting a working beam steel material of a heating furnace. The pipe for skid 1 is covered with a ceramic fiber 2 and a sheet-like refractory 3 by laminating both thereon. The sheet-sha...
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JPH09141639A |
To reduce in size and cost an automatic bolt clamping and unclamping apparatus by clamping or unclamping a bolt while once stopping a form in the apparatus for automatically clamping and unclamping the bolt and nut of a split form for mo...
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JP2613867B2 |
PURPOSE: To provide a soundproof device which surrounds the circumference of a centrifugal molding machine in an airtight state and is made not to leak outside a noise to be generated by a molding machine outside. CONSTITUTION: A packing...
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JP2615097B2 |
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JP2535887Y2 |
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JP2609347B2 |
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JP2610350B2 |
PURPOSE:To fabricate a molding of a beta-alumina tube which is very unlikely to be cracked by properly controlling the speed at which pressure for pressurization utilized in the method of dry hydrostatic pressurization is reduced. CONSTI...
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JP2535888Y2 |
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JPH09123151A |
To make fastening/loosening work effective and save loads of an operator by facilitating the handling of a fastening/loosening device, and extremely lessening impacts transmitted to hands of the operator. A nut runner 14 being a fastenin...
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JPH09123154A |
To provide an anti-corrosion concrete pipe and manufacture thereof having good acid resistance, excellent adhesiveness to a concrete layer without causing any separation and cracks, having no troubles at construction, and being effective...
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JPH09123152A |
To prevent whitewash leakage by covering a pallet with a sealing sheet, and mounting a plastic face to be embedded in a concrete tube on the sealing sheet. The surface of a pallet 4 is covered with a sealing sheet 9, mounted with a plast...
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JPH09126291A |
To increase durability, simplify structure and lower manufacturing cost by connecting a body and the lower part with two sets of cranks, point joining a bar obliquely with a gap between the body and the lower part in the cross direction ...
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JPH09126362A |
To eliminate a difference in steps on a pipe connection face by placing concrete between a mold and a synthetic resin pipe like direct pipe which is fixed in the mold, curing the concrete by using steam, and pulling out the synthetic res...
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JP2606724B2 |
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JP2534716Y2 |
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JP2608594B2 |
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JP2533970Y2 |
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JPH09109129A |
To eliminate the step when a concrete product is coupled by forming the product by using a main form and a perforating extracting form and forming the sectional shapes of all the positions of the formed holes the same. The perforated con...
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JP2533186Y2 |
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JP2598825B2 |
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JPH0994815A |
To obtain a form which can mold rectangular concrete blocks having different header face slant angles without installing a partition plate or replacing a face plate. An architrave-shaped face plate (a bottom plate of a vertical placing m...
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JPH0985728A |
To facilitate the holding of steps and the removing of a die from a molded article, and improve the work efficiency by a method wherein each split die to cover open windows for the attaching of manhole steps, is supported in an internal ...
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JP2594982B2 |
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JP2594691B2 |
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JPH0976130A |
To enable automatic fastening of threaded parts by a simple structure and also to limit fastening torque by a simple structure. A socket 1, a shaft member 2 and a guide member 3 for constituting a motion converting mechanism, an air cyli...
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JP2529736Y2 |
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