Vermicular cast iron alloy and internal combustion engine head
The present invention relates to the technological field of cast iron alloys for automotive and similar applications. Problem to be solved: Presently, structural parts of internal combustion engines are made of gray cast iron alloys that rarely have a tensile strength limit range greater than 350 MP...
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| creator | Guesser, Wilson Luiz Ramos, Andre Koerich Cabezas, Carlos de Souza Molinar, Hector Mancha |
| description | The present invention relates to the technological field of cast iron alloys for automotive and similar applications. Problem to be solved: Presently, structural parts of internal combustion engines are made of gray cast iron alloys that rarely have a tensile strength limit range greater than 350 MPa or vermicular cast iron alloys that do not remain stable at high temperatures. Solution of the problem: It is disclosed a vermicular cast iron alloy that, due to the addition of amounts of Molybdenum, Copper and Tin, with Hot Resistance Factor from 0.5 to 1.7% (HRF=3×(% Mo)+1×(% Sn)+0.25×(% Cu)) achieves a tensile strength limit of 500 to 550 MPa at room temperature and up to 300° C., and a tensile strength limit of 430 to 450 MPa at 400° C. |
| format | Patent |
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Problem to be solved: Presently, structural parts of internal combustion engines are made of gray cast iron alloys that rarely have a tensile strength limit range greater than 350 MPa or vermicular cast iron alloys that do not remain stable at high temperatures. Solution of the problem: It is disclosed a vermicular cast iron alloy that, due to the addition of amounts of Molybdenum, Copper and Tin, with Hot Resistance Factor from 0.5 to 1.7% (HRF=3×(% Mo)+1×(% Sn)+0.25×(% Cu)) achieves a tensile strength limit of 500 to 550 MPa at room temperature and up to 300° C., and a tensile strength limit of 430 to 450 MPa at 400° C.</description><language>eng</language><subject>ALLOYS ; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES ; BLASTING ; CHEMISTRY ; COMBUSTION ENGINES ; CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES ; FERROUS OR NON-FERROUS ALLOYS ; HEATING ; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS ; LIGHTING ; MECHANICAL ENGINEERING ; METALLURGY ; TREATMENT OF ALLOYS OR NON-FERROUS METALS ; WEAPONS</subject><creationdate>2022</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20220705&DB=EPODOC&CC=US&NR=11377717B2$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20220705&DB=EPODOC&CC=US&NR=11377717B2$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>Guesser, Wilson Luiz</creatorcontrib><creatorcontrib>Ramos, Andre Koerich</creatorcontrib><creatorcontrib>Cabezas, Carlos de Souza</creatorcontrib><creatorcontrib>Molinar, Hector Mancha</creatorcontrib><title>Vermicular cast iron alloy and internal combustion engine head</title><description>The present invention relates to the technological field of cast iron alloys for automotive and similar applications. Problem to be solved: Presently, structural parts of internal combustion engines are made of gray cast iron alloys that rarely have a tensile strength limit range greater than 350 MPa or vermicular cast iron alloys that do not remain stable at high temperatures. 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Problem to be solved: Presently, structural parts of internal combustion engines are made of gray cast iron alloys that rarely have a tensile strength limit range greater than 350 MPa or vermicular cast iron alloys that do not remain stable at high temperatures. Solution of the problem: It is disclosed a vermicular cast iron alloy that, due to the addition of amounts of Molybdenum, Copper and Tin, with Hot Resistance Factor from 0.5 to 1.7% (HRF=3×(% Mo)+1×(% Sn)+0.25×(% Cu)) achieves a tensile strength limit of 500 to 550 MPa at room temperature and up to 300° C., and a tensile strength limit of 430 to 450 MPa at 400° C.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ALLOYS ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES BLASTING CHEMISTRY COMBUSTION ENGINES CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES FERROUS OR NON-FERROUS ALLOYS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MECHANICAL ENGINEERING METALLURGY TREATMENT OF ALLOYS OR NON-FERROUS METALS WEAPONS |
| title | Vermicular cast iron alloy and internal combustion engine head |
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