ZA916984B - Process for coating granular mineral materials with synthetic resin - Google Patents

Process for coating granular mineral materials with synthetic resin

Info

Publication number
ZA916984B
ZA916984B ZA916984A ZA916984A ZA916984B ZA 916984 B ZA916984 B ZA 916984B ZA 916984 A ZA916984 A ZA 916984A ZA 916984 A ZA916984 A ZA 916984A ZA 916984 B ZA916984 B ZA 916984B
Authority
ZA
South Africa
Prior art keywords
synthetic resin
sand
hot
mineral materials
coating
Prior art date
Application number
ZA916984A
Inventor
Franz Baumgartner
Baumgartner Franz
Franz Grothe
Grothe Franz
Hans-Ulrich Schubert
Schubert Hans-Ulrich
Hermann Theilen
Theilen Hermann
Original Assignee
Huettenes Albertus
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 Huettenes Albertus filed Critical Huettenes Albertus
Publication of ZA916984B publication Critical patent/ZA916984B/en

Links

Classifications

    • 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
    • B22C5/04—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose by grinding, blending, mixing, kneading, or stirring
    • 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
    • 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

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Fertilizers (AREA)
  • Paints Or Removers (AREA)
  • Glanulating (AREA)
  • Soil Working Implements (AREA)
  • General Preparation And Processing Of Foods (AREA)

Abstract

The invention relates to a process for coating granular mineral materials with synthetic resin. Minerals of this type, for example quartz sand, zircon sand, chrome ore sand, fireclay and corundum, are used in coated form in foundries as a moulding material (sand) for the production of shell moulds by the Croning process. The invention has the object of providing a hot-coating process which involves adding hot-liquid synthetic resin to the mineral material to be coated, but overcomes the disadvantages of the prior art by allowing rapid change of the synthetic resin types to be processed, allowing inherently reactive synthetic resins to be employed, and generally being more practicable and less complex. This object is achieved according to the invention in that the hot-liquid synthetic resin is only formed just before its addition to the mineral material, by melting solid synthetic resin.
ZA916984A 1990-09-04 1991-09-03 Process for coating granular mineral materials with synthetic resin ZA916984B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4028031A DE4028031A1 (en) 1990-09-04 1990-09-04 METHOD FOR COVERING GRAINY, MINERAL MATERIALS WITH SYNTHETIC RESIN

Publications (1)

Publication Number Publication Date
ZA916984B true ZA916984B (en) 1992-05-27

Family

ID=6413571

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA916984A ZA916984B (en) 1990-09-04 1991-09-03 Process for coating granular mineral materials with synthetic resin

Country Status (9)

Country Link
EP (1) EP0475548B1 (en)
JP (1) JPH04244226A (en)
KR (1) KR930005755A (en)
AT (1) ATE149892T1 (en)
BR (1) BR9103848A (en)
DD (1) DD297295A5 (en)
DE (2) DE4028031A1 (en)
MX (1) MX174308B (en)
ZA (1) ZA916984B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4418466C2 (en) * 1994-05-27 2001-02-22 Florian Wendt Process for the production of three-dimensional molds from curable molding material
US6155331A (en) * 1994-05-27 2000-12-05 Eos Gmbh Electro Optical Systems Method for use in casting technology
CN108554311A (en) * 2018-06-26 2018-09-21 重庆长江造型材料（集团）股份有限公司 The process units of coating particles material
CN110918867A (en) * 2019-12-21 2020-03-27 青岛宜泰源铸造材料有限公司 Special precoated sand for stainless steel and preparation process thereof

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR7401518D0 (en) * 1973-03-02 1974-12-24 Stronc Scott Mfg Co PERFECTED MIXER APPLIANCE AND PERFECT PROCESS FOR TREATING CASTING SAND
GB1563686A (en) * 1977-04-04 1980-03-26 Aurora Metal Corp Resin coated sand
JPS6045023B2 (en) * 1981-01-08 1985-10-07 日産自動車株式会社 Method for producing unsaturated polyester resin-coated sand for foundries
US4478269A (en) * 1982-02-16 1984-10-23 Qo Chemicals, Inc. Furan Resin coated aggregate
FR2626794B1 (en) * 1988-02-10 1993-07-02 Snecma THERMOPLASTIC PASTE FOR THE PREPARATION OF FOUNDRY CORES AND PROCESS FOR THE PREPARATION OF SAID CORES

Also Published As

Publication number Publication date
EP0475548A1 (en) 1992-03-18
JPH04244226A (en) 1992-09-01
DE4028031A1 (en) 1992-03-05
MX174308B (en) 1994-05-04
BR9103848A (en) 1992-05-26
EP0475548B1 (en) 1997-03-12
DE59108606D1 (en) 1997-04-17
DD297295A5 (en) 1992-01-09
ATE149892T1 (en) 1997-03-15
KR930005755A (en) 1993-04-20

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