RU2020135681A - MOLD CLEANING - Google Patents

MOLD CLEANING Download PDF

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Publication number
RU2020135681A
RU2020135681A RU2020135681A RU2020135681A RU2020135681A RU 2020135681 A RU2020135681 A RU 2020135681A RU 2020135681 A RU2020135681 A RU 2020135681A RU 2020135681 A RU2020135681 A RU 2020135681A RU 2020135681 A RU2020135681 A RU 2020135681A
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RU
Russia
Prior art keywords
sand
hydroxypentyl
hydroxyhexyl
polyurethane
general formula
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RU2020135681A
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Russian (ru)
Inventor
Тобиас УРБАН
Хеннинг УРХ
Михаэль КОХ
Томас ПААШЕ
Original Assignee
Басф Се
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Application filed by Басф Се filed Critical Басф Се
Publication of RU2020135681A publication Critical patent/RU2020135681A/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D29/00—Removing castings from moulds, not restricted to casting processes covered by a single main group; Removing cores; Handling ingots
    • B22D29/001—Removing cores
    • B22D29/002—Removing cores by leaching, washing or dissolving
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C1/00—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds
    • B22C1/16—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents
    • B22C1/20—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents of organic agents
    • B22C1/22—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents of organic agents of resins or rosins
    • B22C1/2233—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents of organic agents of resins or rosins obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C1/00—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds
    • B22C1/16—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents
    • B22C1/20—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents of organic agents
    • B22C1/22—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents of organic agents of resins or rosins
    • B22C1/2233—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents of organic agents of resins or rosins obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • B22C1/2273—Polyurethanes; Polyisocyanates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C5/00—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose
    • B22C5/08—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose by sprinkling, cooling, or drying
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D29/00—Removing castings from moulds, not restricted to casting processes covered by a single main group; Removing cores; Handling ingots
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D31/00—Cutting-off surplus material, e.g. gates; Cleaning and working on castings
    • B22D31/002—Cleaning, working on castings

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Detergent Compositions (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Processing Of Solid Wastes (AREA)

Claims (25)

1. Способ разрушения литейной формы, содержащей песок и связующее на основе полиуретана, включающий стадии (i) контактирования литейной формы с композицией, содержащей:1. A method for destroying a mold containing sand and a polyurethane-based binder, comprising the steps of (i) contacting the mold with a composition containing: (a) по меньшей мере один амид карбоновой кислоты общей формулы (I)(a) at least one carboxylic acid amide of general formula (I)
Figure 00000001
Figure 00000001
 в которой R1 обозначает линейный или разветвленный, незамещенный или гидроксизамещенный алкил с 2-22 атомами углерода;in which R 1 denotes a linear or branched, unsubstituted or hydroxy-substituted alkyl with 2-22 carbon atoms; R2 и R3 независимо друг от друга обозначают Н или линейный или разветвленный, незамещенный или замещенный алкил с 1-12 атомами углерода; иR 2 and R 3 independently of one another are H or linear or branched, unsubstituted or substituted alkyl with 1-12 carbon atoms; and (b) по меньшей мере один алканоламин общей формулы (II)(b) at least one alkanolamine of general formula (II)
Figure 00000002
Figure 00000002
 в которой АО являются одинаковыми или разными, выбранными из группы, состоящей из СН2-СН2-O, СН(СН3)-СН2-O, СН2-СН(СН3)-O, СН(С2Н5)-СН-O, С(СН3)2-СН2-O, СНС(СН3)2-O и СН2-СН(С2Н5)-O;in which the AO are the same or different, selected from the group consisting of CH 2 -CH 2 -O, CH(CH 3 )-CH 2 -O, CH 2 -CH(CH 3 )-O, CH(C 2 H 5 )-CH-O, C(CH 3 ) 2 -CH 2 -O, CHS(CH 3 ) 2 -O and CH 2 -CH(C 2 H 5 )-O; m представляет собой 1, 2, 3, 4, 5, 6 или 7; иm is 1, 2, 3, 4, 5, 6 or 7; and х, у независимо друг от друга представляют собой 0 или 1,x, y are independently 0 or 1, для получения смеси песка и полиуретанового связующего.to obtain a mixture of sand and polyurethane binder. 2. Способ по п. 1, где песок выбирают из группы, состоящей из природного кремнистого песка, глины, сырого песка, кварцевого песка, хромитового песка, оливинового песка, специальных видов песка и циркониевого песка.2. The method of claim 1 wherein the sand is selected from the group consisting of natural siliceous sand, clay, raw sand, quartz sand, chromite sand, olivine sand, specialty sands and zirconium sand. 3. Способ по п. 1, где связующее на основе полиуретана содержит полиуретан, растворимое стекло и по меньшей мере одну смолу, которая отличается от полиуретана.3. The method of claim 1 wherein the polyurethane binder comprises polyurethane, water glass and at least one resin other than polyurethane. 4. Способ по п. 1, где R1 выбирают из группы, состоящей из этила, н-пропила, н-бутила, н-пентила, н-гексила, н-гептила, н-октила, н-нонила, н-децила, изооктила, изопропила, изобутила, изопентила, изогексила, изогептила, изононила, изодецила, 1-гидроксиэтила, 1-гидроксипропила, 2-гидроксипропила, 1-гидроксибутила, 2-гидроксибутила, 1-гидроксипентила, 2-гидроксипентила, 3-гидроксипентила, 3-гидроксипентила, 4-гидроксипентила, 1-гидроксигексила, 2-гидроксигексила, 3-гидроксигексила, 4-гидроксигексила и 5-гидроксигексила.4. The method according to p. 1, where R 1 is selected from the group consisting of ethyl, n-propyl, n-butyl, n-pentyl, n-hexyl, n-heptyl, n-octyl, n-nonyl, n-decyl , isooctyl, isopropyl, isobutyl, isopentyl, isohexyl, isoheptyl, isononyl, isodecyl, 1-hydroxyethyl, 1-hydroxypropyl, 2-hydroxypropyl, 1-hydroxybutyl, 2-hydroxybutyl, 1-hydroxypentyl, 2-hydroxypentyl, 3-hydroxypentyl, 3 -hydroxypentyl, 4-hydroxypentyl, 1-hydroxyhexyl, 2-hydroxyhexyl, 3-hydroxyhexyl, 4-hydroxyhexyl and 5-hydroxyhexyl. 5. Способ по п. 1, где R2 и R3 представляют собой метил.5. The method according to p. 1, where R 2 and R 3 represent methyl. 6. Способ по п. 1, где m равно 1, 2 или 3.6. The method according to p. 1, where m is 1, 2 or 3. 7. Способ по п. 1, где х и у равны 0.7. The method according to p. 1, where x and y are equal to 0. 8. Способ по п. 1, где по меньшей мере один амид карбоновой кислоты общей формулы (I) и по меньшей мере один алканоламин общей формулы (II) присутствуют в молярном соотношении от 5:1 до 1:5.8. The method according to claim 1, wherein at least one carboxylic acid amide of general formula (I) and at least one alkanolamine of general formula (II) are present in a molar ratio of from 5:1 to 1:5. 9. Способ по п. 1, дополнительно включающий стадию (ii) отделения песка от смеси, полученной на стадии (i).9. The method of claim 1, further comprising the step (ii) of separating the sand from the mixture obtained in step (i). 10. Способ по одному или нескольким пп. 1-9, дополнительно включающий стадию (iii) сушки песка, полученного на стадии (ii).10. The method according to one or more paragraphs. 1-9, further comprising a step (iii) for drying the sand obtained in step (ii). 11. Способ по п. 1, где композиция содержит по меньшей мере одно поверхностно-активное вещество.11. The method of claim 1 wherein the composition contains at least one surfactant. 12. Способ по п. 11, где по меньшей мере одно поверхностно-активное вещество представляет собой неионогенное поверхностно-активное вещество.12. The method of claim 11 wherein at least one surfactant is a nonionic surfactant. 13. Способ по п. 12, где неионогенное поверхностно-активное вещество выбирают из группы, состоящей из простого поли-(С2-С4)-алкиленгликольмоно-(С8-С22)-алкилового эфира, сложного поли-(С2-С4)-алкиленгликолевого эфира моно-(С8-С22)-карбоновой кислоты, алкоксилированного масла и алкоксилированного алкиламина.13. The method according to p. 12, where the nonionic surfactant is selected from the group consisting of a simple poly-(C 2 -C 4 )-alkylene glycol mono-(C 8 -C 22 )-alkyl ester, a complex poly-(C 2 -C 4 )-alkylene glycol ester of mono-(C 8 -C 22 )-carboxylic acid, alkoxylated oil and alkoxylated alkylamine. 14. Композиция, содержащая (a) 2-гидроксипропанамид и (b) моноэтаноламин.14. Composition containing (a) 2-hydroxypropanamide and (b) monoethanolamine. 15. Применение композиции по п. 14 для разрушения литейной формы.15. The use of the composition according to claim 14 for the destruction of the mold.
RU2020135681A 2018-03-30 2019-03-21 MOLD CLEANING RU2020135681A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP18165295.9 2018-03-30
EP18165295 2018-03-30
PCT/EP2019/057042 WO2019185437A1 (en) 2018-03-30 2019-03-21 Cleaning of foundry molds

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RU2020135681A true RU2020135681A (en) 2022-05-04

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US (1) US20210114090A1 (en)
EP (1) EP3774114A1 (en)
JP (1) JP2021519214A (en)
CN (1) CN111936252A (en)
BR (1) BR112020019796A2 (en)
MX (1) MX2020010276A (en)
RU (1) RU2020135681A (en)
WO (1) WO2019185437A1 (en)

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2666001A (en) 1950-06-15 1954-01-12 Pure Oil Co Chemical method for removing residual sand from metal castings formed in sand-type molds
US2766496A (en) 1952-02-02 1956-10-16 Robert W Ward Company Method and apparatus for cleaning foundry sand
JPS5785634A (en) * 1980-11-14 1982-05-28 Shokubai Kasei Kogyo Kk Manufacture of mold
JPS604262B2 (en) 1981-02-21 1985-02-02 マツダ株式会社 Manufacturing method for aluminum alloy castings
JPH0635592B2 (en) * 1985-06-17 1994-05-11 花王株式会社 Cleaning agent for mold making
US4770713A (en) * 1986-12-10 1988-09-13 Advanced Chemical Technologies, Inc. Stripping compositions containing an alkylamide and an alkanolamine and use thereof
JPH0794065B2 (en) * 1991-02-08 1995-10-11 明三 佐藤 Unframed method of organic self-hardening mold
JPH10235467A (en) * 1997-02-24 1998-09-08 Tetra:Kk Remover for organic self-hardened molding sand
EP1575722A2 (en) * 2002-08-08 2005-09-21 Consolidated Engineering Company, Inc. Methods and apparatus for heat treatment and sand removal for castings
US20150367405A1 (en) * 2014-06-18 2015-12-24 Newton Engine Corporation Foundry Mixture and Related Methods for Casting and Cleaning Cast Metal Parts

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US20210114090A1 (en) 2021-04-22
BR112020019796A2 (en) 2021-01-05
JP2021519214A (en) 2021-08-10
WO2019185437A1 (en) 2019-10-03
MX2020010276A (en) 2020-11-06
CN111936252A (en) 2020-11-13
EP3774114A1 (en) 2021-02-17

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