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Patent Searching and Data


Matches 401 - 450 out of 3,978

Document Document Title
JP2005169814A
To provide a method for manufacturing centrifugally molded concrete having high strength without increasing the occurrence of sludge.A concrete composition, which is composed of cement, an admixture material, fine aggregate, coarse aggri...  
JP2005161587A
To efficiently manufacture a cementitious jacket pipe for use in covering a resin pipe to enhance the refractory properties and sound insulating properties of the resin pipe.A steel pipe core 2 having a bonding guide 4, which is formed o...  
JP3662249B2
The description relates to a process for the continuous production of cyclindrical rods (24) with at least one and preferably a plurality of internal helical channels (26) of predetermined cross-section uniformly distributed around the p...  
JP2005147283A
To provide a synthetic resin pipe joint and a synthetic resin pipe and their coupling structure excellent in fire resistance and sound insulation capable of easily attaching and detaching pipes.The synthetic resin pipe joint 1 is provide...  
JP3657840B2
To provide a method of manufacturing a centrifugal product enabling the reduction of amount of the sludge which is discharge during centrifugal molding. The centrifugal product is manufactured by adding an emulsion comprising a polymer c...  
JP2005119173A
To provide a method for producing a centrifugally molded product which can easily suck/remove excess water and slag collected in the edge part of concrete after the centrifugal molding of the concrete of every layer by simple constitutio...  
JP2005111977A
To provide a method for manufacturing a PC wall material using a simple apparatus at a low cost, which can manufacture a PC wall material using a conventional stressed abut and introduce the predetermined prestress to the end part thereo...  
JP2005103956A
To provide a tool for detaching a ceramic casting core which can prevent the vibration of a core to prevent the collision of the core with a casting, preventing the breakage of the casting and a ceramic casting method using the tool.The ...  
JP3633914B2
To solve such a problem that time is required since an amount of an excess water content and the like is too much when air and the excess water which are gushed out from a concrete placed are removed by installing horizontally the shutte...  
JP2005053071A
To provide an inexpensive manufacturing method of a concrete product capable of reducing the damage of a mold to hold the mold to the same shape over a long period of time, and the mold for molding the concrete product.The manufacturing ...  
JP2005022393A
To provide a centrifugal force bamboo-reinforced concrete pipe compacted by a centrifugal force by rotating a formwork at a high speed, in which a bamboo material is used as a cylindrical bamboo cage to be laid in the pipe.The bamboo mat...  
JP3605492B2  
JP3603971B2
PURPOSE: To facilitate manufacture of a highly pure tough silicon pipe by a method wherein conductive materials charged into annular gap formed between two bottomless crucibles are melted by heating from inside and outside with an induct...  
JP2004352545A
To provide a method for manufacturing a vitreous carbon made pipe by which a long pipe or a bent pipe is manufactured to have excellent mechanical strengths and gas tight in a connection part at a low cost without necessitating mechanica...  
JP3602091B2  
JP3601647B2
To provide a method for processing a form for manufacturing a stake with a knot wherein accuracy of processing and strength are improved, and at the same time, manufacturing cost is reduced. In this method for processing a form, a pair o...  
JP3599434B2
To easily and precisely produce a concrete product having a through- hole. An apparatus 1 for producing a concrete product having a through-hole is constituted of an outer form 5 having demolding holes 6 (6A, 6B) opened to both mutually ...  
JP2004339610A
To economically produce a cylindrical bland for producing a drill tool.In at least one bar made of a plastic material such as a plasticized powder-metallurgical material and a ceramics material 12, having a channel 26 with at least a par...  
JP2004339915A
To provide a side cluster for subterranean structures for which rapping can be performed easily even though a concrete mold forming the inner wall surfaces is a single mold; shaping work can be easily performed; production efficiency can...  
JP3594223B2
To manufacture a cylindrical ceramic body with a little difference in the wall thickness between one end part and the other end part or almost no difference by first casing slurry into a molding die for a first round of molding and rever...  
JP3585470B2
To provide a precast PC member constituted so as to be capable of introducing prestress into the precast PC member and another member, a manufacturing method therefor, and a joining method. The intermediate part of a PC steel material is...  
JP3585471B2
To provide a precast PC member constituted so as to be capable of introducing prestress into the precast PC member and another concrete member, a manufacturing method for the precast PC member, and a joining method for both members. At l...  
JP3574516B2
To deal with displacement due to unequal settlement of the ground and the like by placing concrete between an inner form an outer form, and connecting together box culvert main bodies through a flexible connecting member. An inner form 8...  
JP3574517B2
To make temporary fixation of a flexible connecting member certain by a method wherein reinforcing bars are arranged between an inner form and an outer form, and the flexible connecting member is temporarily fixed with a temporary fixati...  
JP3553024B2
To provide equipment for manufacturing a concrete pipe which prevents formation of a step between the pipe end parts when a plurality of the concrete pipes are connected together. End plate parts 15 and 16 forming one end face and the ot...  
JP2004216775A
To provide a molding cast for a ceramic bent pipe which can mold the molded body of a ceramic bent pipe without cracking.This molding cast is structured of a main part segment 2 for molding a bent part and a straight pipe part of a molde...  
JP3542977B2
To solve the problem that it takes a much time due to a large quantity of an excess moisture or the like when air or excess water gushed out from a concrete placed in a form is intended to be removed by horizontally installing the form w...  
JP3543273B2
PURPOSE: To enable the production of a concrete product such as a high strength Hume concrete pipe, or a thin type box culvert by comprising anhydrous gypsum in an expanded material produced by the heat treatment of a mixture of a CaO ra...  
JP3543274B2
PURPOSE: To enable the production of a concrete product such as a high strength Hume concrete pipe or a thin type box culvert by comprising anhydrous gypsum in an expanded material produced by the heat treatment of a mixture of a CaO raw...  
JP3543272B2
PURPOSE: To obtain a concrete product such as a high-strength Hume pipe and a thin box culvert mainly useful in a civil engineering and building industries. CONSTITUTION: An expanding material which is formed by heat-treating a mixture c...  
JP2004174861A
To solve problems that ceramic powder is not sufficiently filled in a molding space in a molding die for a bottomed ceramic tube molded product, resulting in the generation of defective molding at the bottom of the molded product, and oc...  
JP2004142208A
To provide a method for manufacturing an extruded hollow pipe which ensures the highly precise straight extrusion of the pipe without hollow diameter deformation, and the hollow pipe obtained by this method.When the hollow pipe is manufa...  
JP3524679B2
To make a member for heat treatment absorb infrared rays and facilitate heating by a method, wherein the content of each metal element is set at less than or equal to a specific ppm, thickness of a CVD-SiC plate is set in a specific rang...  
JP3517632B2
To eliminate defects such that when a concrete block is manufactured, air bubbles and water bubbles remain unless air generated from the internal surface of the bottom section of the concrete block and an excessive water content or the l...  
JP3513530B2
To allow a cylindrical concrete product to be efficiently manufactured by placing a form of the product in a line by allowing an outer mold (particularly a side board) from the form before an inner mold is released. A method for manufact...  
JP3510470B2
To provide a method for molding a dipping nozzle which can mold a molding easily in a high precision and at low costs and its molding mold. In a method for molding a dipping nozzle by hydrostatic pressure molding and its mold, a core 12 ...  
JP2004058533A
To form a water-conveyance hole in an inward expanded shape in a block with a drainage function, and to prevent accumulation of sediment etc. by reducing the intrusion of the sediment etc. by virtue of the water-conveyance hole formed in...  
JP3492322B2
To solve such a problem that tension is applied to a filter cloth attached to a form by a rubber string or the like in order to remove air or excess moisture flowing out of cast concrete when a concrete secondary product is manufactured ...  
JP2004025742A
To provide an apparatus for removing an inner form of a concrete form by which the inner form can be removed by one touch, and there exists no possibility of leakage of a filled ready mixed concrete, and the inner form after a product is...  
JP2004009321A
To excellently improve workability on extension and reduction of an inner frame in a frame apparatus wherein a plurality of the inner frames are arranged inside an outer frame.A main core 7 provided on a bottom plate 1 and auxiliary core...  
JP3468733B2
To provide a method for efficiently manufacturing a propulsive tube for a sheathing tube. A plurality of propulsive tube for sheathing tube-manufacturing forms 12 and 13 into which concrete is respectively casted are installed at an inte...  
JP2003313932A
To provide a side ditch capable of preventing deposition of sediment and dirt inside a water channel as well as a side ditch molding equipment.A hollow water channel 2 with both ends opened in a longitudinal direction is formed, and the ...  
JP2003311722A
To provide a novel method for forming a concrete which improves a finish surface by increasing an early and a long-term strengths of the concrete without requiring a chemical admixture, a vibrator or the like.Pressurizing with a pressure...  
JP2003291127A
To provide an inexpensive form for manufacturing a culvert block capable of molding a predetermined flowing water cross section, by utilizing a core made of a resin in place of a form using an expensive core made of steel much lowered in...  
JP3454324B2
PURPOSE: To reduce the yield of whitewash and the water-to-cement ratio of concrete and to improve the strength of a centrifugally compacted body by incorporating bentonite and heat-treated bentonite into a centrifugally compacted concre...  
JP2003251641A
To provide a pipe manufacturing method which requires no operation for inserting a strip-like sheet or the like in the gap between a molded pipe and an inner cylinder for the purpose of demolding and facilitates the removal of the molded...  
JP2003251638A
To provide a pipe manufacturing method which requires no operation for inserting a strip-like sheet or the like in the gap between a molded pipe and an inner cylinder for the purpose of demolding and facilitates the removal of the molded...  
JP3441424B2
To easily remove a formwork from a concrete formed article in a technique for recycling remaining concrete. The remaining concrete generated in a construction and building site is recycled by this method. A concrete formed article 3 (e.g...  
JP2003245916A
To obtain a concrete structure high in durability by increasing the bonding strength between the concrete structure and a cover-forming member and preventing the penetration of moisture from the space between both of them to prevent the ...  
JP2003245915A
To obtain a concrete structure high in durability by increasing the bonding strength between the concrete structure and a cover-forming member, and preventing the penetration of moisture from the space between both of them to prevent the...  

Matches 401 - 450 out of 3,978