JPS57134234A - Production of binder for self-curing mold - Google Patents

Production of binder for self-curing mold

Info

Publication number
JPS57134234A
JPS57134234A JP1976681A JP1976681A JPS57134234A JP S57134234 A JPS57134234 A JP S57134234A JP 1976681 A JP1976681 A JP 1976681A JP 1976681 A JP1976681 A JP 1976681A JP S57134234 A JPS57134234 A JP S57134234A
Authority
JP
Japan
Prior art keywords
molding
binder
self
production
furfuryl alcohol
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.)
Granted
Application number
JP1976681A
Other languages
Japanese (ja)
Other versions
JPS6020110B2 (en
Inventor
Yoshiro Owada
Takeshi Sumi
Takehiko Ishibashi
Susumu Koarai
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.)
Resonac Corp
Original Assignee
Hitachi Chemical Co Ltd
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 Hitachi Chemical Co Ltd filed Critical Hitachi Chemical Co Ltd
Priority to JP1976681A priority Critical patent/JPS6020110B2/en
Publication of JPS57134234A publication Critical patent/JPS57134234A/en
Publication of JPS6020110B2 publication Critical patent/JPS6020110B2/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B22C1/224—Furan polymers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Mold Materials And Core Materials (AREA)
  • Phenolic Resins Or Amino Resins (AREA)

Abstract

PURPOSE:To prevent the production of malodors during molding in the production of a co-condensation resin of fufuryl alcohol, urea and formaldehyde as a binder for molding self-curing molds, by removing the low b.p. components of the industrial furfuryl alcohol added after dehydration. CONSTITUTION:In molding of self-curing molds for casting, a co-condensation resin obtd. by causing furfuryl alcohol, 1 kind selected from urea or phenol and formaldehyde is used as a binder for refractory aggregate such as molding sand. In this case, this co-condensation resin is dehydrated in a pressure reduced state, after which industrial furfuryl alcohol is added thereto and these are caused to react. Finally, the temp. is raised, and azeotropic distillation is accomplished, whereby 1-10% low b.p. components of the industrial furfuryl alcohol are removed. The degradation of working environments by producing malodors in the molding of molds is obviated.
JP1976681A 1981-02-12 1981-02-12 Manufacturing method of self-hardening mold binder Expired JPS6020110B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1976681A JPS6020110B2 (en) 1981-02-12 1981-02-12 Manufacturing method of self-hardening mold binder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1976681A JPS6020110B2 (en) 1981-02-12 1981-02-12 Manufacturing method of self-hardening mold binder

Publications (2)

Publication Number Publication Date
JPS57134234A true JPS57134234A (en) 1982-08-19
JPS6020110B2 JPS6020110B2 (en) 1985-05-20

Family

ID=12008454

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1976681A Expired JPS6020110B2 (en) 1981-02-12 1981-02-12 Manufacturing method of self-hardening mold binder

Country Status (1)

Country Link
JP (1) JPS6020110B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0508101A2 (en) * 1991-03-14 1992-10-14 Keramchemie GmbH Hardening moulding masses
JP2017519886A (en) * 2014-06-27 2017-07-20 テウォン ファーム カンパニー リミテッド Method for producing spherical furan resin particles

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0508101A2 (en) * 1991-03-14 1992-10-14 Keramchemie GmbH Hardening moulding masses
JP2017519886A (en) * 2014-06-27 2017-07-20 テウォン ファーム カンパニー リミテッド Method for producing spherical furan resin particles

Also Published As

Publication number Publication date
JPS6020110B2 (en) 1985-05-20

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