JPS57177847A - Production of resin coated sand grain for shell mold - Google Patents

Production of resin coated sand grain for shell mold

Info

Publication number
JPS57177847A
JPS57177847A JP6289081A JP6289081A JPS57177847A JP S57177847 A JPS57177847 A JP S57177847A JP 6289081 A JP6289081 A JP 6289081A JP 6289081 A JP6289081 A JP 6289081A JP S57177847 A JPS57177847 A JP S57177847A
Authority
JP
Japan
Prior art keywords
resin coated
production
shell mold
coated sand
sand grain
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
JP6289081A
Other languages
Japanese (ja)
Other versions
JPS6364260B2 (en
Inventor
Tadashi Sato
Tsutomu Teramoto
Toru Sakai
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.)
Toyota Motor Corp
Aisin Chemical Co Ltd
Original Assignee
Toyota Motor Corp
Aisin 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 Toyota Motor Corp, Aisin Chemical Co Ltd filed Critical Toyota Motor Corp
Priority to JP6289081A priority Critical patent/JPS57177847A/en
Publication of JPS57177847A publication Critical patent/JPS57177847A/en
Publication of JPS6364260B2 publication Critical patent/JPS6364260B2/ja
Granted 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
    • B22C1/2246—Condensation polymers of aldehydes and ketones
    • B22C1/2253—Condensation polymers of aldehydes and ketones with phenols

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)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

PURPOSE:To improve dimensional acuracy and strength in the stage of kneading heated sand grains and a solid resol type phenolic resin and molding the molding sand by adding a prescribed amt. of hexamethylenetetramine. CONSTITUTION:100pts.wt. solid resol type phenolic resin consisting essentially of SR aid is added to heated (120-140 deg.C) abrasive grains and these are agitated and mixed. Next, ''hexa'' water prepd. by dissolving 2-20pts. hexamethylenetetramine in water is added thereto and these are further kneaded. In this way, the resin coated molding sand with high dimensional accuracy and strength is obtained.
JP6289081A 1981-04-24 1981-04-24 Production of resin coated sand grain for shell mold Granted JPS57177847A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6289081A JPS57177847A (en) 1981-04-24 1981-04-24 Production of resin coated sand grain for shell mold

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6289081A JPS57177847A (en) 1981-04-24 1981-04-24 Production of resin coated sand grain for shell mold

Publications (2)

Publication Number Publication Date
JPS57177847A true JPS57177847A (en) 1982-11-01
JPS6364260B2 JPS6364260B2 (en) 1988-12-12

Family

ID=13213288

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6289081A Granted JPS57177847A (en) 1981-04-24 1981-04-24 Production of resin coated sand grain for shell mold

Country Status (1)

Country Link
JP (1) JPS57177847A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5312958A (en) * 1976-07-22 1978-02-06 Shin Etsu Chem Co Ltd Mercapto group-containing silicone rubber composition

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5312958A (en) * 1976-07-22 1978-02-06 Shin Etsu Chem Co Ltd Mercapto group-containing silicone rubber composition

Also Published As

Publication number Publication date
JPS6364260B2 (en) 1988-12-12

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