JPS57139442A - Resin-coated sand grains for forming mold and mold formed of this sand grain - Google Patents

Resin-coated sand grains for forming mold and mold formed of this sand grain

Info

Publication number
JPS57139442A
JPS57139442A JP2503681A JP2503681A JPS57139442A JP S57139442 A JPS57139442 A JP S57139442A JP 2503681 A JP2503681 A JP 2503681A JP 2503681 A JP2503681 A JP 2503681A JP S57139442 A JPS57139442 A JP S57139442A
Authority
JP
Japan
Prior art keywords
sand
mold
coated
casting
compd
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.)
Pending
Application number
JP2503681A
Other languages
Japanese (ja)
Inventor
Isao Kai
Hirotami Hosokawa
Takayuki Oda
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.)
Asahi Yukizai Corp
Original Assignee
Asahi Organic Chemicals Industry 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 Asahi Organic Chemicals Industry Co Ltd filed Critical Asahi Organic Chemicals Industry Co Ltd
Priority to JP2503681A priority Critical patent/JPS57139442A/en
Priority to US06/296,208 priority patent/US4381354A/en
Priority to DE19813135708 priority patent/DE3135708A1/en
Publication of JPS57139442A publication Critical patent/JPS57139442A/en
Pending 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Mold Materials And Core Materials (AREA)

Abstract

PURPOSE:To improve collapsibility by lowering the residual stringth after casting of a mold consisting of the coated sand obtd. by coating raw material sand with a composition consisting of a curable resin and a halogen-contg. org. compd. CONSTITUTION:A composition consisting of 0.3-10pts.wt. a curable resin and 0.001-10pts.wt. a halogen contg. org. compd. based on 100pts.wt. raw material sand is mixed with said sand and the mixture is kneaded, whereby the raw material sand grains are coated with the composition. In this case, the halogen org. compd. is decomposed by heating, and the cracked gas accelerates the carburization of the curable resin. Hence, the mold formed of this coated sand maintains the superiority of moldability and the heat resistance required in the stage of casting during casting, but after the casting, it degrades its residual strength and improves collapsibility considerably.
JP2503681A 1981-02-23 1981-02-23 Resin-coated sand grains for forming mold and mold formed of this sand grain Pending JPS57139442A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2503681A JPS57139442A (en) 1981-02-23 1981-02-23 Resin-coated sand grains for forming mold and mold formed of this sand grain
US06/296,208 US4381354A (en) 1981-02-23 1981-08-25 Resin coated sand and casting molds prepared therefrom
DE19813135708 DE3135708A1 (en) 1981-02-23 1981-09-05 RESIN-COVERED MOLDED SAND AND FOUNDRY MOLDS AND CORES MADE THEREOF

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2503681A JPS57139442A (en) 1981-02-23 1981-02-23 Resin-coated sand grains for forming mold and mold formed of this sand grain

Publications (1)

Publication Number Publication Date
JPS57139442A true JPS57139442A (en) 1982-08-28

Family

ID=12154676

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2503681A Pending JPS57139442A (en) 1981-02-23 1981-02-23 Resin-coated sand grains for forming mold and mold formed of this sand grain

Country Status (1)

Country Link
JP (1) JPS57139442A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0768343A (en) * 1994-08-08 1995-03-14 Asahi Organic Chem Ind Co Ltd Production of aluminum alloy casting
JP2015047603A (en) * 2013-08-30 2015-03-16 旭有機材工業株式会社 Urethane-curable organic binder for casting mold, and casting sand composition and casting mold obtained by using the binder
CN104668440A (en) * 2015-02-04 2015-06-03 繁昌县金科机电科技有限公司 Environment-friendly casting coated sand and method for preparing the coated sand

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0768343A (en) * 1994-08-08 1995-03-14 Asahi Organic Chem Ind Co Ltd Production of aluminum alloy casting
JP2015047603A (en) * 2013-08-30 2015-03-16 旭有機材工業株式会社 Urethane-curable organic binder for casting mold, and casting sand composition and casting mold obtained by using the binder
CN104668440A (en) * 2015-02-04 2015-06-03 繁昌县金科机电科技有限公司 Environment-friendly casting coated sand and method for preparing the coated sand

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