子分类：
| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 81 | Method of and apparatus for preparing binding material for cores | US68518624 | 1924-01-09 | US1688661A | 1928-10-23 | RUNYAN WILLIAM B |
| 82 | Machine for making molds | US17635417 | 1917-06-22 | US1335641A | 1920-03-30 | BEARDSLEY ELMER O; PIPER WALTER F |
| 83 | 주형사의 성상에 따른 주조공정 관리방법 | KR1020177025391 | 2015-06-08 | KR1020170125043A | 2017-11-13 | 오구라,유이치; 사카이,츠요시; 하라다,히사시 |
| 본발명은계측된주형사의성상데이터에근거하여, 생산중인주형의조형조건, 혹은, 조형후의공정등을변화시켜주조결함또는소비에너지를저감할수 있는주형사의성상에따른주조공정관리방법을제공한다. 주형조형에이용하는주형사의성상에따라, 주조공정을관리하는방법으로서, 조형기(40)에공급하기직전의주형사의성상을계측하는공정(1)과, 계측된주형사의성상이소정의성상에적합한지여부를판정하는공정(2)을가지며, 그판정의결과가소정의성상에적합하지않은경우에, 조형되는주형의강도가, 소정의성상에적합한주형사로조형할때의주형강도보다약해지도록주형을조형한다. | ||||||
| 84 | 주물사의 열적 재생방법 | KR1020097018716 | 2008-02-19 | KR1020090113877A | 2009-11-02 | 코흐,디터; 뮐러,옌스; 프론,마쿠스 |
| The invention relates to a method for regenerating used foundry sand, which is contaminated with soluble glass, wherein: used foundry sand is provided, which is tainted with a binding agent made of the soluble glass, to which a particle-shaped metal oxide is added; and the used foundry sand is subjected to a thermal treatment, wherein the foundry sand is heated to a temperature of at least 200°C, thereby obtaining regenerated foundry sand. The invention further relates to regenerated foundry sand, as that obtained from using the method. | ||||||
| 85 | Collected sand processing method | US10220340 | 2002-08-30 | US06712119B2 | 2004-03-30 | Shigeaki Yamamoto; Kuniyasu Mori; Ryoji Kanayama; Hisashi Harada; Hiroaki Tokita; Kazuo Sugimoto; Takehiko Matsumoto; Hiroyasu Makino; Yasunori Yoshida |
| A method and apparatus are provided to process collected sand. This method and apparatus allow the moisture content to be adjusted and the addition of a binder to be facilitated to renew the collected sand as casting sand for future use. Also, defective castings are prevented when they are made by a main mold using the renewed casting sand. The sand-collecting means can be compact. The method is performed and the apparatus is operated by separating a main mold of green sand, after casting is conducted, into parts unaffected and affected by the molten metal heat, adjusting the moisture content of the part unaffected by molten metal heat for use as facing sand in the next main mold making, and adding a binder and adjusting the moisture content of the part affected by the molten metal heat for use as back sand in making the next main mold. | ||||||
| 86 | Method and apparatus for adjusting casting sand using the optimum compactibility | US08676058 | 1996-07-05 | US06272932B1 | 2001-08-14 | Tadashi Nishida |
| An adjusting method and apparatus is provided for optimizing the CB of casting sand relative to the deformation properties of a casting mold. The method consists of measuring compactibility of casting sand by compactibility measuring means 4 and a value of compressive deformation of a sample mold 10 corresponding to the compactibility by compressive deformation measuring means 5, repeating the measuring step at least three times, and operating the optimum compactibility, at which the value of compressive deformation of the sample mold 10 is the minimum, by operation means 7. | ||||||
| 87 | Method of restoring used molding sand | US169591 | 1998-10-09 | US6056042A | 2000-05-02 | Kazuharu Matsui; Takehiko Matsumoto; Junichi Iwasaki; Eiji Yamaguchi |
| Measuring the degree of restoration during the restoring treatment of the used molding sand and comparing the measured degree of restoration to a permissible degree, comprising the following steps: First, the restored sand is photographed to project it as a picture on a monitor. A picture-processing device divides that picture into a certain number of picture parts and the brightness of each picture part is compared to the standard brightness, which is chosen beforehand. The degree of restoration is judged based on the number of picture parts that are lighter or darker than the standard brightness. The restoring treatment is stopped when the result of the comparison shows that the restoration has reached the permissible degree, but is continued when the result does not reach it. The operation of measuring the degree of restoration during the treatment is also repeated until it reaches the permissible degree. Then the treatment is stopped. | ||||||
| 88 | Method of regenerating foundry sand | US836367 | 1997-05-13 | US6019157A | 2000-02-01 | Toshitake Kanno; Tomohisa Kawaji |
| The present invention aims to provide a method of regenerating foundry sand whereby the carbon component adhering to the surface of spent foundry sand and similar substances is combusted efficiently, allowing the foundry sand to be regenerated at low cost. In the present invention, in order to achieve this aim the spent foundry sand with the carbon component adhering to it is placed in a combustion furnace which is connected on one side to a pressure-reducing pump and is open on the other, the pressure-reducing pump is operated to draw air from within the foundry sand and introduce air into it, and the accretion is ignited upwind of the current of air which is being introduced, allowing combustion of the accretion to proceed successively on the downwind side. Foundry sand can thus be recycled at very low cost, simply and reliably because it is allowed to self-combust continuously without any heating or agitation from elsewhere, and because the resin is combusted entirely. | ||||||
| 89 | Method for measuring the amount of an active clayey component contained in molding greensand | US631412 | 1996-04-12 | US5675090A | 1997-10-07 | Tadashi Nishida; Kazuharu Matsui |
| A method is disclosed to accurately and easily measure the amount of an active clayey component contained in molding greensand. A test piece is produced by feeding a predetermined amount of the molding greensand into a testing receptacle. The test piece is then tested to obtain its compressive strength. The amount of the active clayey component contained in it is determined from the measured compressive strength by using previously obtained data on the relation between the compressive strength and the active clayey component of molding greensand which is used on a mold-producing line or at a factory. | ||||||
| 90 | Method and apparatus for making molds | US924620 | 1978-07-14 | US4190369A | 1980-02-26 | Leslie D. Rikker |
| Apparatus of the invention includes a dispenser for mixing an discharging layers of the molding material onto the mold forming pattern, and means for producing selectively controlled relative movement between the dispenser and the pattern including a control system for varying the ratio of sand and binder in the mixture being dispensed in accordance with the relative position of the dispenser and the pattern. The apparatus may thus be controlled to provide for selectively variable ratios of sand and binder in accordance with the strength required of the mold at a particular position. The system also provides a selectively variable control of the thickness of each layer of molding material as the mixing head or pattern moves on a three axis coordinate system. For relatively small and light castings the mixing and dispensing head may be retained in a relatively fixed position while the pattern is selectively moved in a three axis coordinate grid while with large castings, the pattern is stationary and the mixing head is moved. The mixing and dispensing head is particularly designed for use in the field of "no-bake" sand-resin-catalyst mixing and includes facilities for controlling the mixing operation so that the mixture does not set up and harden in the mixing head between mixing operations. Also, the constituency of successive layers may be varied and the amount of organic binder material minimized so as to reduce smoke and fumes during the casting operation. | ||||||
| 91 | Apparatus for making foundry moulds | US3796250D | 1973-06-19 | US3796250A | 1974-03-12 | WOONTON K; SHORT J; MILLS D; ROACH K |
| Apparatus for continuous, high speed production of foundry mould parts by pressing them from a continuous bed of foundry sand mix which is based on a curable binder, pressing of the part being carried out at a time when the mix has adequate plastic flowability for pressure moulding and adequate potential curability to assure a strong, rigid cured product. Advantageous embodiments include curing means operating in conjunction with the pressing means.
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| 92 | Method for making foundry moulds | US3739834D | 1971-06-21 | US3739834A | 1973-06-19 | WOONTON K; SHORT J; ROACH K |
| Method for continuous, high speed production of foundry mould parts by pressing them from a continuous bed of foundry sand mix which is based on a curable binder, pressing of the part being carried out at a time when the mix has adequate plastic flowability for pressure moulding and adequate potential curability to assure a strong, rigid cured product.
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| 93 | Method and apparatus for testing foundry mold materials | US3537295D | 1967-07-14 | US3537295A | 1970-11-03 | HEIMGARTNER JULIUS |
| 94 | Process for refining sands | US58560266 | 1966-10-10 | US3374062A | 1968-03-19 | BOWDISH FRANK W |
| 95 | Automatic mold testing apparatus | US38761564 | 1964-08-05 | US3335787A | 1967-08-15 | DIETERT HARRY W; STEINMUELLER RALPH E; GRAHAM ALEXANDER L |
| 96 | Process of reclaiming metallic particles from foundry sand | US44743265 | 1965-04-12 | US3291304A | 1966-12-13 | FUCHS JOSEPH E |
| 97 | Method for preparing shell molding compositions | US22823862 | 1962-10-04 | US3260617A | 1966-07-12 | LAWTHER WILLIAM D |
| 98 | Apparatus for measuring the tensile strength of green sand | US24006962 | 1962-11-26 | US3182493A | 1965-05-11 | WILHELM PATTERSON; DIETMAR BOENISCH |
| 99 | Device for ascertaining the operational behavior of molding substances | US2353360 | 1960-04-20 | US3159018A | 1964-12-01 | WILHELM PATTERSON; DIETMAR BOENISCH |
| 100 | Moldability controller | US13290461 | 1961-08-21 | US3154824A | 1964-11-03 | DIETERT HARRY W |
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