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JP2618196B2 |
Cast iron gears, such as those used as cam gears on engines and as used for fuel injection gear pumps, which have a hub and a rim that are thick in comparison to the relatively thin web used to interconnect the hub with the rim and a pro...
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JPH09141417A |
To prevent the occurrence of casting defect by promoting the solidification of the molten metal almost uniformly over a whole and also to improve the cycle time of a casting by accelerating the solidification of the whole molten metal. I...
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JPH09113505A |
To accurately and quickly evaluate the chill tendency of a molten metal in the stage of the molten metal by setting the chill carbon equivalent in the constituent composition of the molten cast iron. When the chill carbon equivalent CEc ...
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JP2597032B2 |
PURPOSE:To easily process a cast product by applying annealing after casting to part for executing the processing of the cast product, which is cast by using a metallic mold, and softening. CONSTITUTION:By pouring molten iron composed of...
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JP2597031B2 |
PURPOSE:To easily process a cast product by applying annealing under the specific condition after casting to part for executing the processing of the cast product, which is cast by using a metallic mold, and softening. CONSTITUTION:By po...
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JPH0929422A |
To restrain the delay of solidification with mass effect of a casting, to improve the gas permeability of a sand mold (gas ventilation) and to prevent the development of cast defect by using a semi-conductor-made cooling element as accel...
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JP2575714B2 |
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JPH08257685A |
PURPOSE: To form only a part planned as break-dividing part to the brittleness at the step of casting, in a manufacturing method of a bearing forming a bearing body and a bearing cap by break-dividing the bearing part integrally formed b...
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JPH08238561A |
PURPOSE: To produce a single crystal casting suitable for the production of a turbine blade, etc. CONSTITUTION: This producing method and device are adopted for uniformizing the growth of columnar crystal and coarsening the crystal grain...
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JPH08215818A |
PURPOSE: To stably obtain a casting having high wear resistance and toughness by dividing a mold into a thick part and a thin part, using a metallic mold in the thick part and a sand mold in the thin part and arranging a chiller on the s...
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JPH08174142A |
PURPOSE: To prevent a chiller from falling during the pattern draw by attracting the chiller by a magnet provided on a molding pattern, and providing a fall- preventing tapered part having the reverse gradient to the draft on the chiller...
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JPH08103849A |
PURPOSE: To obtain a mold for casting having a chiller surely kept at the normal position after joining the molds. CONSTITUTION: The mold for casting is provided with a drag 1, the chiller 15 set so as to project upward from the joint su...
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JPH0839193A |
PURPOSE: To obtain a cast product having stable chilled layer by binding many slender bar materials into a bundle to form a metallic mold and forming a mold surface with the end parts of the metallic mold members. CONSTITUTION: A master ...
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JPH07102443B2 |
1. A refractory component comprising a casting (10) end an insert part (20) which is at least partially surrounded by the base material of the casting by casting-in and which comprises a fine pore, refractory material, particularly a cer...
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JPH0799171B2 |
A hydrodynamic bearing and methods of manufacturing the same. The bearing includes a bearing pad structure that may change shape and move in any direction (six degrees of freedom) to form a converging wedge for hydrodynamic operation, an...
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JPH0787966B2 |
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JPH0771728B2 |
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JPH07164131A |
PURPOSE: To improve the wear resistance at a necessary position by hardening only to the necessary position. CONSTITUTION: In this apparatus, sand cores 2a for casting the needing position to the high wear resistance in a spheroidal grap...
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JPH0733433U |
[Purpose] Provided is a cooling means capable of cooling a local portion (thick portion) of a casting having a complicated shape in which a thin portion and a thick portion are mixed. [Constitution] It is a cooling block of a cassette ty...
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JPH0712646Y2 |
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JPH0760396A |
PURPOSE: To suppress the occurrence of casting defects and obtain good castings by applying a mold coat having air permeability on a lost foam pattern and chiller, respectively, then mounting this chiller 2 at the thick part of the lost ...
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JPH0760399A |
PURPOSE: To decrease working allowances for cutting after casting by forming the inside diameter of a recessed part formed by casting to the same diameter as far as possible over the entire length. CONSTITUTION: An auxiliary metal mold 3...
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JPH0762479A |
PURPOSE: To obtain an aluminum alloy casting having little deterioration of mechanical properties, partically excellent toughness even in the condition of slow cooling speed in the thick part as automobile parts of aluminum wheel, suspen...
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JPH0751826A |
PURPOSE: To facilitate the forcedly cooling casting of a thick casting having the advantage of a chilling material as it is and making up the defect easily developing void by using foaming material of a metal having high m.p. and high sp...
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JPH0734962A |
PURPOSE: To provide a linerless plated cylinder block made of a light alloy which is manufactured through die casting and has a plated layer of high quality and to provide the manufacture thereof CONSTITUTION: The manufacture of a cylind...
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JPH071074A |
PURPOSE: To form the chill layer of sufficient amount in manufacturing the castings made of cast iron, and to prevent failure such as metal penetration defect to be generated by the presence of the chill promoting agent such as the metal...
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JPH06285586A |
PURPOSE: To provide a method for casting an aluminum wheel without fear of developing uneven plating. CONSTITUTION: On a mold 1 forming a design surface in the aluminum wheel, cooling pipes or cavities 1a are arranged, and by forcedly co...
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JPH06508903A |
A hydrodynamic thrust, journal or combined radial and thrust bearing which may be mounted within a sealed housing assembly which can be, for example, be used to replace rolling element bearings. The bearing can be designed for mounting t...
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JPH0675745B2 |
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JPH0666840U |
[Purpose] Provided is a gravity mold capable of improving productivity, improving casting quality, and extending the life of the mold. [Constitution] A coating film 14 having a surface roughness of 30 to 100 μm having wear resistance an...
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JPH06190532A |
PURPOSE: To prevent the deformation of an annular edge core and to uniformize the thickness around the annular space in a piston by arranging solidification promoting parts to non-supporting part which is easily expansion-deformed by rec...
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JPH06142869A |
PURPOSE: To produce cast-iron hollow component parts, more adequately a cast-iron cylinder liner for piston engines in such a manner that the casting of the cylinder has high strength. CONSTITUTION: The cast-iron cylinder liner for the p...
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JPH06114540A |
PURPOSE: To quicken the solidification of the thick part of a casting and prevent the occurrence of casting defect such as casting blow hole in this part by locally quenching the thick forming part in a core at super low temp. with lique...
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JPH06108147A |
PURPOSE: To prevent the generation of the defect of surface fold on the surface of a product by casting the molten metal of cast iron in which the content of C, Si, Mn, S, P and Mg is specified in a water cooled die made of a copper alla...
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JPH0615693B2 |
The invention concerns a method and apparatus for thermally treating cast-iron pipes formed in a continuous casting die. The pipe or tube undergoes tempering by passing through a vat which is located downstream from the continuous castin...
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JPH062303B2 |
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JPH0584522B2 |
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JPH05253656A |
PURPOSE: To provide a metallic tubular product having amorphous phase or super fine crystal phase for the most part of a structure by making a mold and a core with a metal having high thermal conductivity, pouring molten metal into a tub...
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JPH05253665A |
PURPOSE: To manufacture a high chromium cast iron excellent in wear resistance. CONSTITUTION: At the time of manufacturing the high chromium casting iron having composition by wt.% composed of 2.5-3.7 C, 0.3-1% Si, 0.5-1.5% Mn, 14-18% Cr...
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JPH0561019B2 |
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JPH0561018B2 |
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JPH0530846Y2 |
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JPH05161957A |
PURPOSE: To easily manufacture a casting without blow hole defect and to improve quality and precision. CONSTITUTION: An upper mold 1 and a lower mold 2 are formed of a metallic mold and a core 3 is formed of a shell core. The core 3 is ...
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JPH0526848B2 |
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JPH0523826A |
PURPOSE: To lighten a hollow chilled cam shaft and to improve wear resistance of a cam part by inserting a hollow shaft formed unitedly a bearing part, cam part and journal part with a lost foam pattern casting method as cast-in and chil...
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JPH0523831A |
PURPOSE: To prevent concentration of casting stress in a joint part and also, crystallization of coarse graphite in peripheral face of a hat part by restraining rapid cooling in the joint part between the hat part and a disk part in a ca...
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JPH059632A |
PURPOSE: To produce a Zn alloy casting having excellent mechanical strength, hardly undergoing the deterioration of the physical properties due to aging and suitable for use as stock for a metal mold for molding plastic or as a bearing a...
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JPH055123A |
PURPOSE: To provide the remelt hardening treatment method, in which manufacturing process of e.g. cam shaft for engine parts can be simplified. CONSTITUTION: Molten metal is poured into cavity in dies, and at the time, when surface layer...
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JPH0480791B2 |
Spherical graphite cast iron utilized to prepare a lapping tool is manufactured by casting a molten composition into a mold cavity, and by chilling one side of the resulting casting thereby causing unidirectional solidification, the one ...
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JPH04507065A |
Continuous casting of discrete solid shapes (33) from a molten material (11) using modified continuous casting machines and processes are disclosed. In a conventional twin belt continuous caster, for example, forming means (27) such as d...
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