专利检索_·改善灰口铸铁的延展性专利检索_·改善灰口铸铁的延展性专利检索查询

序号	专利名	申请号	申请日	公开（公告）号	公开（公告）日	发明人
141	CG CAST IRON	AU4701785	1985-09-03	AU4701785A	1986-03-13	KOVACS BELA VICTOR; NOWICKI ROMAN MANSWET

142	PROCEDURE AND MEANS IN THE MANUFACTURING OF HARD- SURFACED, CAST-IRON OBJECTS, IN PARTICULAR OF ROLLS SUCH AS ROLLS FOR THE STEEL INDUSTRY OR PAPER ROLLS, AND ROLL OR EQUIVALENT MANUFACTURED BY THE PROCEDURE	CA381139	1981-07-06	CA1195822A	1985-10-29	SAILAS VAINO
The invention provides a method for the manufacture of hard-surfaced, cast iron objects, in particular of rolls such as rolls for the steel industry or paper calendering rolls, wherein the objects are cast in sand or in a like manner such that on cooling they have mainly a crystal structure of grey cast iron, and thereafter undergo a remelting treatment with a view to obtaining a surface hard casting using at least one electron beam.
143	PROTECTIVE HYDROGEN-BEARING ATMOSPHERE FOR HEAT TREATMENTS	AU1796983	1983-08-15	AU1796983A	1984-02-23	STRIGL REINHARD

144		RO10538581	1981-09-24	RO82448A2	1983-10-15

145	PROCEDEU DE TRATAMENT TERMIC APLICAT PIESELOR DIN FONTA CENUSIE	RO10538581	1981-09-24	RO82448B1	1983-09-30	WANYOREK CONSTANTIN ANTON
Inventia se refera la un procedeu de tratament termic aplicat pieselor din fonte cenusii cu grafit lamelar, perlitice pâna la semiperlitice, cu scopul maririi rezilientei de 3...4 ori fata de starea initiala, constând din încplzirea pieselor între 450 si 900 degree C cu o mentinere de 0,5h, pentru a fi calite în ulei. Dupa calire se aplica o revenire la o temperatura de 600...650 degree C cu mentinerea de 4h, obtinându-se grafitul lamelar de forma vermiculara, rotunjita la capete, ceea ce conduce la mentionata crestere de 3...4 ori a rezilientei, implicit cresterea rezistentei la soc si vibratii, creându-se posibilitatea înlocuirii unor piese turnate din otel prin piese turnate din fonta, mai ieftine.
146	METHOD FOR HEAT TREATING PARTS OF HIGH-TENSILE SPHEROIDAL CAST IRON	SU2988979	1980-10-02	SU973638A1	1982-11-15	ALEKSEEV YURIJ A; BEZVERKHOVA MARIYA A; BOLSHAKOV ANATOLIJ I; FOMICHEV VLADIMIR M

147	METHOD FOR HEAT TREATING HIGH-TENSILE CAST IRON	SU2994652	1980-10-21	SU969759A1	1982-10-30	ZAMULA KONSTANTIN P; SOLNTSEV LEONARD A; PETRICHENKO ALEKSEJ M

148	METHOD OF MAKING CAST IRON ARTICLES	SU2791190	1979-07-06	SU829693A1	1981-05-15	ANTONISHIN YURIJ T; KHABLAK GEORGIJ I

149	DE2322132C3 -	DE2322132	1973-05-02	DE2322132C3	1979-02-15	HANAI, KENICHI, URAWA, SAITAMA; FUKUMURA, TSUKASA, OKAYA, NAGANO

150	DE2322132B2 -	DE2322132	1973-05-02	DE2322132B2	1978-06-08	HANAI, KENICHI, URAWA, SAITAMA; FUKUMURA, TSUKASA, OKAYA, NAGANO

151		SU1698546	1971-09-23	SU413203A1	1974-01-30

152		SU1601858	1970-12-23	SU376458A1	1973-04-05

153	Способ термической обработки деталей из ковкого чугуна	SU669994	1960-06-14	SU135891A1	1960-11-30

154	Improvements in production of malleable iron	GB416841	1941-03-28	GB547107A	1942-08-13
547,107. Heat-treating cast iron. ELECTRO METALLURGICAL CO. March 28, 1941, No. 4168. Convention date, May 9, 1940. [Class 72] To improve the responsiveness of white cast iron to the subsequent annealing treatment to produce malleable iron, the iron is first heated to 100-400C. for a period of 10-200 hours, e.g. at 130C. or 245C. for 65 hours. The heated iron may be subsequently held at malleabilising temperatures to produce temper carbon. In an example a cast iron containing 2.54 per cent. of combined carbon and 0.06 graphite, 0.65 of silicon, 0.42 of manganese, 0.04 of sulphur and 0.12 of phosphorus was heated for 65 hours at 245C. and then subjected to an annealing comprising heating to 955C. for 1 hour and holding it there for 4 hours, cooling to 788C. in 1 hour and then to. 650C. in 9 hours.
155	A method of manufacturing the malleable	FR871742D	1941-04-24	FR871742A	1942-05-07

156	A process for producing articles made of an iron-carbon alloy	DEN0034433	1932-11-09	DE634904C	1936-09-09

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