RU2016148200A - A method of manufacturing products of complex shape from sand-polymer systems - Google Patents

A method of manufacturing products of complex shape from sand-polymer systems Download PDF

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Publication number
RU2016148200A
RU2016148200A RU2016148200A RU2016148200A RU2016148200A RU 2016148200 A RU2016148200 A RU 2016148200A RU 2016148200 A RU2016148200 A RU 2016148200A RU 2016148200 A RU2016148200 A RU 2016148200A RU 2016148200 A RU2016148200 A RU 2016148200A
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Russia
Prior art keywords
layer
sand
chemical composition
carried out
product
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RU2016148200A
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Russian (ru)
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RU2695084C2 (en
RU2016148200A3 (en
Inventor
Александр Геннадьевич Неткачев
Петр Игоревич Галинов
Денис Николаевич Бычковский
Максим Анатольевич Одноблюдов
Original Assignee
Александр Геннадьевич Неткачев
Петр Игоревич Галинов
Денис Николаевич Бычковский
Максим Анатольевич Одноблюдов
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Application filed by Александр Геннадьевич Неткачев, Петр Игоревич Галинов, Денис Николаевич Бычковский, Максим Анатольевич Одноблюдов filed Critical Александр Геннадьевич Неткачев
Priority to RU2016148200A priority Critical patent/RU2695084C2/en
Publication of RU2016148200A publication Critical patent/RU2016148200A/en
Publication of RU2016148200A3 publication Critical patent/RU2016148200A3/ru
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22CFOUNDRY MOULDING
    • B22C9/00Moulds or cores; Moulding processes
    • B22C9/02Sand moulds or like moulds for shaped castings
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B33ADDITIVE MANUFACTURING TECHNOLOGY
    • B33YADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y10/00Processes of additive manufacturing

Claims (3)

1. Способ изготовления изделий сложной формы из песчано-полимерных систем, включающий послойное программно-компьютерное моделирование изделия, подготовку песка, послойное нанесение песка на подложку и послойно-селективную обработку каждого слоя, в соответствии с компьютерными сечениями модели до образования запрограммированной формы изделия, отличающийся тем, что подготовку песка осуществляют в бункере подготовки, путем смешивания песка с химическим катализатором, в качестве которого используют паратолуолсульфокислоту, при этом в процессе нанесения каждого песчаного слоя осуществляют вибрационное воздействие, а послойно-селективную обработку каждого слоя осуществляют до затвердевания смеси на глубину слоя, в два этапа, сначала на каждом нанесенном слое обработку проводят программно-регламентированным внесением химической композиции на основе фурфурилового спирта, путем впрыска его в подготовленный песчаный слой, согласно изготавливаемого сечения, по окончании обработки химической композицией на основе фурфурилового спирта, для ускорения процесса полимеризации и увеличения прочности изделия, каждый слой подвергается тепловой обработке.1. A method of manufacturing products of complex shape from sand-polymer systems, including layer-by-layer software-computer modeling of a product, sand preparation, layer-by-layer sand application on a substrate and layer-by-layer selective processing of each layer, in accordance with computer sections of the model until a programmed shape of the product is formed, characterized the fact that the preparation of sand is carried out in the preparation hopper, by mixing sand with a chemical catalyst, which is used as paratoluenesulfonic acid, while in The process of applying each sand layer is effected by vibration, and the layer-by-layer selective treatment of each layer is carried out before the mixture hardens to the depth of the layer, in two stages, first, on each applied layer, the treatment is carried out by program-controlled application of a chemical composition based on furfuryl alcohol by injection into prepared sand layer, according to the section being manufactured, at the end of processing with a chemical composition based on furfuryl alcohol, to accelerate the polymerization process tion and increased strength of the product, each layer is subjected to heat treatment. 2. Способ по п. 1, отличающийся тем, что в качестве песчано-полимерной системы используют формовочный кварцевый песок крупности в диапазоне 0,05-0,20 мм и химическую композицию на основе фурфурилового спирта, при этом содержание химической композиции составляет от 0,5% до 1% массы песка, а соотношение химического катализатора от 5% до 10% массы химической композиции.2. The method according to p. 1, characterized in that as the sand-polymer system using molding quartz sand with a grain size in the range of 0.05-0.20 mm and a chemical composition based on furfuryl alcohol, while the content of the chemical composition is from 0, 5% to 1% of the mass of sand, and the ratio of the chemical catalyst from 5% to 10% of the mass of the chemical composition. 3. Способ по п. 1, отличающийся тем, что тепловую обработку проводят либо инфракрасными излучателями, либо лазером, либо другими дистанционными способами теплового воздействия.3. The method according to p. 1, characterized in that the heat treatment is carried out either by infrared emitters, or by a laser, or other remote methods of heat exposure.
RU2016148200A 2016-12-08 2016-12-08 Method of producing articles of complex shape from sand-polymer systems RU2695084C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2016148200A RU2695084C2 (en) 2016-12-08 2016-12-08 Method of producing articles of complex shape from sand-polymer systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2016148200A RU2695084C2 (en) 2016-12-08 2016-12-08 Method of producing articles of complex shape from sand-polymer systems

Publications (3)

Publication Number Publication Date
RU2016148200A true RU2016148200A (en) 2018-06-08
RU2016148200A3 RU2016148200A3 (en) 2019-04-12
RU2695084C2 RU2695084C2 (en) 2019-07-19

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RU2016148200A RU2695084C2 (en) 2016-12-08 2016-12-08 Method of producing articles of complex shape from sand-polymer systems

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2742095C1 (en) * 2020-08-31 2021-02-02 Общество с ограниченной ответственностью "РОБОТЕХ" Method for producing articles of complex shape from sand-polymer mixtures
WO2023211317A1 (en) * 2022-04-29 2023-11-02 Общество с ограниченной ответственностью "АВП Инновации" Method for additively manufacturing irregularly shaped articles

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8623959B2 (en) * 2009-10-06 2014-01-07 Joseph M. Fuqua Non-veining urethane resins for foundry sand casting
RU2433013C1 (en) * 2010-09-08 2011-11-10 Государственное образовательное учреждение высшего профессионального образования Нижегородский государственный технический университет им. Р.Е. Алексеева (НГТУ) Method of producing multilayer investment shell casting moulds
RU2532753C1 (en) * 2013-08-20 2014-11-10 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Нижегородский государственный технический университет им. Р.Е. Алексеева", НГТУ Method of producing multilayer investment shell casting moulds
US10583612B2 (en) * 2014-01-16 2020-03-10 Hewlett-Packard Development Company, L.P. Three-dimensional (3D) printing method

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RU2695084C2 (en) 2019-07-19
RU2016148200A3 (en) 2019-04-12

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