The influence of structure on the strength properties of casting steel obtained with the use of thermite materials

Komarov, O. N.; Жилин, С. Г.; Potianikhin, Dmitrii A.; Predein, V. V.; Abashkin, E. E.; Sosnin, A. A.; Попов, А. В.

doi:10.1063/1.4967084

Cited by 13 publications

(3 citation statements)

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“…Предварительно установлен диапазон содержания алюминиевого сплава в термитной смеси от 20 до 24%, приведенный в табл.1, характеризующийся наибольшим выходом металлической фазы, значения которого варьируются от 42,3 до 52,3% [2]. Сплавы получали с шагом 1%.…”

Section: хфиц дво ран имим дво ран комсомольск-на-амуреunclassified

VLIYaNIE SOOTNOShENIYa KOMPONENTOV TERMITNYKh SMESEY NA STRUKTURU I SVOYSTVA POLUChAEMYKh ALYuMOTERMITNYKh SPLAVOV

2020

Mezhdunarodnaya Konferentsiya "Fizicheskaya Mezomekhanika. Materialy S Mnogourovnevoy Ierarkhicheski Organizovannoy Strukturoy

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Section: хфиц дво ран имим дво ран комсомольск-на-амуреunclassified

VLIYaNIE SOOTNOShENIYa KOMPONENTOV TERMITNYKh SMESEY NA STRUKTURU I SVOYSTVA POLUChAEMYKh ALYuMOTERMITNYKh SPLAVOV

2020

Mezhdunarodnaya Konferentsiya "Fizicheskaya Mezomekhanika. Materialy S Mnogourovnevoy Ierarkhicheski Organizovannoy Strukturoy

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“…Смеси перед реакцией не уплотнялись. Отверстие для слива металла закрыто диском-стопором (диаметр 0,05 м и толщина 0,005 м) из графита той же марки [13].…”

Section: учёные запискиunclassified

Effect of Production Factors in Aluminothermy on Properties of Received Castings From Experimental Alloys

Komarov¹

2018

uzknastu

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Аннотация. Получение расплавов металлов алюмотермией позволяет повысить технико-экономические показатели производств, сократить долю традиционных шихтовых материалов, эффективно переработать металлоотходы машиностроительных и металлургических предприятий, сократить потребление энергоресурсов, снизить продолжительности операций по подготовке расплавов перед заливкой в форму. Однако при применении восстановителей с высоким содержанием примесных элементов их активность снижается, что влечёт снижение температуры продуктов реакции. На температуру влияют влага, замасленность, высокое содержание инертных компонентов. Снижение температуры продуктов реакции приводит к браку литья. Для повышения температуры продуктов реакции шихтовые составы предварительно подогревают. Для определения эффективных температур подогрева смесей проведены дифференциально-термический и термогравиметрический анализы исходных компонентов композиций, которые позволили установить диапазон значений применяемых температур. Summary. The production of metal melts by aluminothermy allows increasing the technical and economic indicators of production, reducing the share of traditional charge materials, efficiently processing metal waste of machine-building and metallurgical enterprises, reducing the consumption of energy resources, and shortening the duration of operations for preparing melts before pouring into a mold. However, when reducing agents with a high content of impurity elements are used, their activity decreases, which leads to a decrease in the temperature of the reaction products. The temperature is affected by moisture, oily high content of inert components. Reducing the temperature of the reaction products leads to a casting marriage. To increase the temperature of the reaction products, the charge compositions are preheated. To determine the effective heating temperatures of the mixtures, differential thermal and thermo gravimetric analyzes of the initial components of the compositions were carried out, which made it possible to establish the ranges of the temperatures used.

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“…The use of thermite technologies in industry is aimed to reduce the resources consumed, that gives the possibility of cost reducing of the products obtained [1]. In the foundry industry, technology using thermite materials is used to produce castings [2,3], their feeding [4, 5, and 6], alloying and inoculation [7].…”

Section: Introductionmentioning

confidence: 99%

Use of Homogenizing Annealing for Formation of the Structure and Properties of Cast Blanks Produced from the Alloys Obtained by Aluminothermy

Попов

Komarov

Жилин

et al. 2020

KEM

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This paperwork presents the results of a series of experiments on the use of homogenizing annealing, aimed at the possibility to control the structure and properties of steel samples obtained by aluminothermy. This method of processing, in some cases, allows to eliminate the need to use subsequent heat treatment operations due to the achievement of the required properties by the cast blank material. Refractory materials and thermite mixtures used, conditions for the production of castings and their total chemical composition are given. The tensile diagram analysis of the samples before and after heat treatment is presented; the structures and diffraction patterns of the samples’ destruction spots are considered. The material obtained by aluminothermy corresponds in its chemical composition to A1, A2, A3, A4 grade of steels for the rail transport according to GOST 31334-2007 which are used in the manufacture of locomotive axes and other rolling stock.

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The influence of structure on the strength properties of casting steel obtained with the use of thermite materials

Cited by 13 publications

References 1 publication

VLIYaNIE SOOTNOShENIYa KOMPONENTOV TERMITNYKh SMESEY NA STRUKTURU I SVOYSTVA POLUChAEMYKh ALYuMOTERMITNYKh SPLAVOV

VLIYaNIE SOOTNOShENIYa KOMPONENTOV TERMITNYKh SMESEY NA STRUKTURU I SVOYSTVA POLUChAEMYKh ALYuMOTERMITNYKh SPLAVOV

Effect of Production Factors in Aluminothermy on Properties of Received Castings From Experimental Alloys

Use of Homogenizing Annealing for Formation of the Structure and Properties of Cast Blanks Produced from the Alloys Obtained by Aluminothermy

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