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序号	专利名	申请号	申请日	公开（公告）号	公开（公告）日	发明人
101	METHOD OF LOW-ALLOY NODULAR CAT-IRON CASTING THERMAL TREATMENT	CS367788	1988-05-30	CS271830B1	1990-11-14	DORAZIL EDUARD PROF ING DRSC; PODRABSKY TOMAS ING CSC; MUNSTEROVA EVA DOC ING CSC; KUHNEL EGON; DAVID FRANTISEK ING; PACAL BOHUMIL DOC ING CSC; KOURIL MILOSLAV ING
In order to reach a high strength and the plastic parameters of cast pieces, these are austenized at a temperature of 880 to 950 degrees C, whereupon they undergo an incomplete isothermal decomposition of austenite at the transformation temperature of 240 to 420 degrees C with the subsequent after cooling. The transition of cast pieces from the austenization ambient into the ambient, in which, the incomplete isothermal decomposition takes place, lasts for 5 to 20 seconds.The introduced method is applied with cast pieces in a basic composition of 3.0 to 3.7 percent of carbon, 2.0 to 3 percent of silicon, 0.2 to 0.5 percent of manganese, 0.01 to 0.07 percent of phosphor, 0.01 to 0.04 percent of sulphur, 0.04 to 0.08 percent of magnesium and the cast pieces contain, aside from the vanadium, also one of the alloying elements of nickel, molybdenum or copper. The cast piece processed in this way display altogether high mechanical properties, which enable their use in much stressed components.
102	Thin-walled ferritic spheroidal graphite cast iron article - contains pearlite, and fine gaps between graphite particles and ferritic matrix are absent	DE3943345	1989-12-29	DE3943345A1	1990-08-16	OBATA FUMIO; NAGAYOSHI HIDEAKI; NAKANO EIJI
In high strength article of ferritic spheroidal graphite cast iron contg. max. 10% pearlite, fine gaps between the graphite particles and the ferritic matrix are absent. Prodn. involves (a) casting; (b) demoulding by mould breaking while the cast product is at its A3 temp. or above over its entire cross-section; (c) immediately introducing the cast product into thje uniform temp. region of a through-furnace held at the A3 temp. or above and holding the cast product at this temp. for up to 30 mins to decompose the cementite content of the matrix; and (d) transferring the cast product into the cooling region of the through-furnace for cooling at a rate to obtain a ferritic matrix. USE/ADVANTAGE - A thin-walled, high strength, spheroidal graphite cast iron article with good mechanical properties, esp. increased fatigue strength, is obtain with low thermal energy consumption. The article is useful as a suspension component for an automobile.
103	CG CAST IRON	AU4701785	1985-09-03	AU577616B2	1988-09-29	KOVACS BELA VICTOR; NOWICKI ROMAN MANSWET

104	METHOD OF MAKING DUCTILE CAST IRON WITH IMPROVED STRENGTH	CA445099	1984-01-11	CA1224066A	1987-07-14	KOVACS BELA V; NOWICKI ROMAN M; STICKELS CHARLES A
A method of making ductile cast iron with a matrix of acicular ferrite and bainite is disclosed. A melt by weight of 3.0-3.6% carbon, 3.5-5.0% silicon, .7-5.0% nickel, 0-.3% Mo, > .015% S, > .06% P (remainder Fe) is subjected to a nodularizing agent and solidified. The iron is then heat treated by heating to 1575-1650.degree.F for 1-3 hours, quenched to 400-775.degree.F at a rate of at least 275.degree.F/min., held for .5-4 hours, and cooled to room temperature. The resulting ductile iron exhibits a yield strength of at least 80 ksi, a tensile strength of at least 140 ksi, elongation of at least 6%, and a hardness of at least 270 BHN.
105	DE3401769C2 -	DE3401769	1984-01-19	DE3401769C2	1986-08-28	KOVACS, BELA V.; NOWICKI, ROMAN M., BLOOMFIELD HILLS, MICH., US; STICKELS, CHARLES A., ANN ARBOR, MICH., US

106	FR2374986B1 -	FR7639068	1976-12-24	FR2374986B1	1981-07-03

107	IMPROVEMENTS IN OR RELATING TO HEAT TREATMENT METHODS FOR ANNEALING A SPHEROIDALPOR LAMELLAR GRAPHITE CAST-IRON PIPE	IN181DE1978	1978-03-08	IN147470B	1980-03-08	PIERREL M

108	METHOD OF HEAT TREATMENT OF IRON CASTING WITH WALL THICKNESS 10 TO 26MM	CS438177	1977-07-01	CS189459B1	1979-04-30	DORAZIL EDUARD; MUENSTEROVA EVA; BARTA BOHUMIL; CRHAK JIRI

109	THERMAL WORKING OF CASTINGS FROM NODULAR CAST IRON WITH WALL THICKNESS 10-26MM	CS438277	1977-07-01	CS189423B1	1979-04-30	DORAZIL EDUARD; MUENSTEROVA EVA; BARTA BOHUMIL; CRHAK JIRI

110	FR2173303B3 -	FR7306676	1973-02-26	FR2173303B3	1976-02-20

111	Metal surface treatment - partic of cast iron workpieces and machine parts, by electron bombardment to enhance mech	FR7306676	1973-02-26	FR2173303A1	1973-10-05
Workpieces are surface treated by electron bombardment to enhance their mechanical props, by treating the workpiece with a specific number and arrangement of surface members which are relatively closely positioned but are not connected with each other. Changes in grain structure are effected solely with these surface elements by smelting and cooling at a controlled speed. May be used for surface treatment of cast iron workpieces and machine parts.
112		SU1325750	1969-04-16	SU377341A1	1973-04-17

113	Способ поверхностной закалки изделий из ковкого ферритного чугуна	SU377810	1948-04-22	SU76500A1	1948-11-30	LANKIN P A; RABIN M O; SHEPELYAKOVSKIJ K Z; YAITSKOV S A

114	피스톤 링 및 그 제조 방법(PISTON RING AND METHOD FOR PRODUCTION OF SAME)	KR1020197020170	2017-09-19	KR102422429B1	2022-07-19

115	피스톤 링 용도를 위한 고 모듈러스 내마모성 회주철	KR1020147016502	2012-11-29	KR1020140097390A	2014-08-06	게콘드해론
주철로 형성된 피스톤 링은 개선된 기계가공성 및 이례적으로 우수한 성능 및 최소한의 비용을 제공한다. 주철은 2.2 내지 2.9 wt. % 탄소, 3.2 내지 4.2 wt. % 규소, 0.75 내지 1.25 wt. % 구리, 1.0 내지 1.5 wt. % 망간, 0.09 내지 0.15 wt. % 황, 0.2 wt. % 이하의 인, 및 평균 탄소 당량 3.8을 포함한다. 주철은 바람직하게는 마르텐사이트의 매트릭스를 포함하고 그 안에 MnS 및 탄화물을 갖는다. 매트릭스에는 또한 바람직하게는 페라이트, 오스테나이트, 및 스테다이트가 없다. 주철은 합금을 주조, 오스테나이트화, 퀀칭, 및 템퍼링함으로써 형성된다.
116	회주철 부품의 응력제거장치	KR1020120043061	2012-04-25	KR101405643B1	2014-06-10	이재영
본 발명은 회주철 부품의 제조 중에 내재되어 있는 잔류응력을 효과적으로 제거하는 장치에 관한 것이다. 본 발명은 회주철 부품에 대한 잔류응력 제거시 일반 저온영역(0∼300℃)에서 진동에너지를 단시간 동안 부품에 가하여 부품에 내재되어 있는 잔류응력을 자체적으로 소진하도록 하는 새로운 형태의 잔류응력 제거기술을 구현함으로써, 부품에 내재되어 있는 잔류응력을 효율적으로 제거할 수 있음은 물론, 응력 제거 전후의 치수변화를 억제할 수 있는 등 품질을 확보할 수 있으며, 무엇보다도 저온 조건에서 단시간에 공정이 이루어지므로 양산성과 원가를 절감할 수 있는 한편, 진동을 이용한 잔류응력 제거 공정과 산질화 등의 열처리 공정을 로 내에서 동시에 수행함으로써, 공정수 단축에 따른 생산성 향상을 도모할 수 있는 회주철 부품의 응력제거장치를 제공한다.
117	회주철 부품의 표면 거칠기 및 변형 저감 방법	KR1020120044304	2012-04-27	KR1020130121266A	2013-11-06	이재영
The purpose of the present invention is to provide a method for reducing the surface roughness and deformation of gray cast iron parts, the method capable of improving the defects of surface roughness due to a porous layer (Fe2N of an epsilon phase) which may be produced during the heat treatment of gray cast iron materials without a post-process or a micro preprocess. The method for reducing the surface roughness and deformation of gray cast iron parts according to the present invention achieves its purpose by comprising a step for performing finishing to obtain a processing dimension of the parts within the range of -1 to 0 mm based on the criteria of complete products before surface heat treatment of the gray cast iron parts; a step for suppressing Fe2N maximally by plasma-ionnitriding the finished gray cast iron parts; and a step for grinding the Fe2N on the surface of the parts after the surface heat treatment. The method for reducing the surface roughness and deformation of gray cast iron parts reduces a gas pocket layer by maximally suppressing the Fe2N of an epsilon phase, thereby minimizing the surface roughness and deformation. [Reference numerals] (AA) Roughing;(BB) Finishing;(CC) Ionnitriding;(DD) Oxidation;(EE) Grinding or honing;(FF) Surface treatment (Brushing)
118	회주철 부품의 응력제거장치	KR1020120043061	2012-04-25	KR1020130120077A	2013-11-04	이재영
The present invention relates to an apparatus for efficiently removing the hidden residual stress during manufacturing a gray cast iron component. The present invention provides an apparatus for efficiently removing the hidden residual stress during manufacturing a gray cast iron component that makes the new technology of removing residual stress which allows residual stress hidden in a component to be exhausted by itself by applying vibration energy to the component for a short period of time at the general low temperature (0 to 300) when the residual stress of the gray cast iron component is removed. Therefore, the residual stress hidden in the component is efficiently removed. The quality is ensured, such as suppressing the dimension change before and after stress removal. Above all, the process is performed for a short period of time at the low temperature, thereby reducing productivity and costs. The process of removing residual stress using vibration and the process of heat treatment, such as oxy-nitriding, are simultaneously performed in a furnace, thereby improving the productivity by reducing the number of process.
119	면 압연용 롤 및 그 제조 방법	KR1020060009474	2006-02-01	KR1020070079095A	2007-08-06	전해동
A noodle rolling roll and a manufacturing method thereof are provided to obtain a rolling roll with excellent mechanical properties by forming a back layer that is a compound layer with superior wear resistance, a diffusion layer for increasing fatigue strength, an oxide layer for imparting corrosion resistance on a surface of the roll. A manufacturing method of a noodle rolling roll comprises: a casting process(S1) of injecting 0.2 to 2.0 wt.% of chromium(Cr), 0.2 to 2.0 wt.% of nickel(Ni) and 0.2 to 2.0 wt.% of molybdenum(Mo) into a gray iron casting workpiece to cast the gray iron casting workpiece into the form of a roll; a normalizing process(S2) of normalizing the cast roll; a cutting process(S3) of machining the roll to predetermined dimensions; a fitting process(S4) of close fitting the cut roll and a shaft, and fitting a pin into the shaft to fix the shaft to the roll; an annealing process(S5) of annealing the fitted roll; a grinding process(S6) of precisely machining a surface of the annealed roll; an oxy-nitriding process(S7) of sequentially heating the grinding process-performed roll to a temperature of 500 to 600 deg.C in a furnace, and injecting vapors of ammonia and water into the furnace, and cooling the roll in the air to form a metal compound layer, a diffusion layer and an oxide layer on a surface of the roll; and a grinding process(S8) of grinding a shaft portion of the roll to predetermined dimensions.
120	수직연마기용 회전판 및 그 제조방법	KR1020030004164	2003-01-22	KR100533248B1	2005-12-05	전해동
본 발명은 수직연마기의 주철제 회전판의 제조방법에 관한 것으로서 회전판을 주조하여 제조시에 주물의 성분에 크롬을 소량 첨가하여 주조하고 주조된 회전판을 산질화 처리하여 표면경도가 우수하며 표면에 산화피막층을 형성하여 내부식성과 내마모성 및 피로강도등의 기계적성질이 우수하게 한 것으로 회주철 주물소재에 크롬(Cr)을 소량 투입하여 회전판의 형상으로 주조하여 이를 불림(normalizing)처리하여 황삭 및 정삭 가공하고 이를 풀림(anneailig)처리하여 가공경화등의 가공응력을 제거하고 연삭하여 필요 규격으로 기계가공된 회전판을 산질화처리를 통하여 회전판의 표피층에 피로한도를 증가시키는 확산층(3)과 내마모성을 증가시키는 금속화합물층(2) 및 부식을 방지하는 산화층(1)을 형성함으로서 내마모성과 내부식성 및 피로한도가 우수� �� 기계적성질을 가진 수직연마기용 회전판을 얻을수 있다.

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