ES413648A1 - Procedure for the permanent modification of the eutectic aluminum alloy and next to the eutectical alloys. (Machine-translation by Google Translate, not legally binding) - Google Patents

Procedure for the permanent modification of the eutectic aluminum alloy and next to the eutectical alloys. (Machine-translation by Google Translate, not legally binding)

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Publication number
ES413648A1
ES413648A1 ES413648A ES413648A ES413648A1 ES 413648 A1 ES413648 A1 ES 413648A1 ES 413648 A ES413648 A ES 413648A ES 413648 A ES413648 A ES 413648A ES 413648 A1 ES413648 A1 ES 413648A1
Authority
ES
Spain
Prior art keywords
salts
eutectic
broth
mixture
translation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
ES413648A
Other languages
Spanish (es)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Patronato de Investigacion Cientifica y Tecnica
Tecnica SpA
Original Assignee
Patronato de Investigacion Cientifica y Tecnica
Tecnica SpA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Patronato de Investigacion Cientifica y Tecnica, Tecnica SpA filed Critical Patronato de Investigacion Cientifica y Tecnica
Priority to ES413648A priority Critical patent/ES413648A1/en
Publication of ES413648A1 publication Critical patent/ES413648A1/en
Expired legal-status Critical Current

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  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)

Abstract

"PROCEDURE FOR THE PERMANENT MODIFICATION OF EUTECTIC ALUMINUM-SILICON ALLOYS AND NEXT TO THE EUTECTIC", characterized in that the Al-Si alloy is melted next to the eutectic in a graphite-clay crucible. Si composition between 11 and 13%. Once the metal has acquired a temperature between 680ºC to 780ºC, the mixture of salts wrapped in aluminum foil is added, introducing it to the bottom of the crucible, with a perforated bell of graphite or iron, the latter being duly protected. The mixture of salts, formed by Cl2Sr and FNa, previously had to be melted and homogenized, and after cooling it is pulverized. It must be kept in a container free of moisture. The amount of salts to be added is that necessary to introduce a proportion of strontium between 0.1 and 1% in the broth. The mixture of salts introduced is stirred into the metal mass, an operation that is carried out every half hour or so. It is tried to maintain the temperature of the broth within the aforementioned range, and during the times of 1 h, 3 h and 6 h, it will be possible to strain said material in the molds to the effect, sand or mold, keeping the piece the modified structure and keeping the mechanical characteristics similar to those obtained with the modification made with sodium. The temperature of the broth can rise up to 825º C and after two hours of effecting the addition of the Sr it can be cast and the piece will retain the modified structure. (Machine-translation by Google Translate, not legally binding)
ES413648A 1973-04-13 1973-04-13 Procedure for the permanent modification of the eutectic aluminum alloy and next to the eutectical alloys. (Machine-translation by Google Translate, not legally binding) Expired ES413648A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES413648A ES413648A1 (en) 1973-04-13 1973-04-13 Procedure for the permanent modification of the eutectic aluminum alloy and next to the eutectical alloys. (Machine-translation by Google Translate, not legally binding)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES413648A ES413648A1 (en) 1973-04-13 1973-04-13 Procedure for the permanent modification of the eutectic aluminum alloy and next to the eutectical alloys. (Machine-translation by Google Translate, not legally binding)

Publications (1)

Publication Number Publication Date
ES413648A1 true ES413648A1 (en) 1976-01-16

Family

ID=8463895

Family Applications (1)

Application Number Title Priority Date Filing Date
ES413648A Expired ES413648A1 (en) 1973-04-13 1973-04-13 Procedure for the permanent modification of the eutectic aluminum alloy and next to the eutectical alloys. (Machine-translation by Google Translate, not legally binding)

Country Status (1)

Country Link
ES (1) ES413648A1 (en)

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