GB1409795A - Casting of high metling point metals and cores therefor - Google Patents

Casting of high metling point metals and cores therefor

Info

Publication number
GB1409795A
GB1409795A GB4805972A GB4805972A GB1409795A GB 1409795 A GB1409795 A GB 1409795A GB 4805972 A GB4805972 A GB 4805972A GB 4805972 A GB4805972 A GB 4805972A GB 1409795 A GB1409795 A GB 1409795A
Authority
GB
United Kingdom
Prior art keywords
graphite
core
polysiloxane
casting
point metals
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.)
Expired
Application number
GB4805972A
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.)
Howmet Corp
Original Assignee
Howmet Corp
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 Howmet Corp filed Critical Howmet Corp
Publication of GB1409795A publication Critical patent/GB1409795A/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
    • B22C1/205—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 organic silicon or metal compounds, other organometallic compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Inorganic Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Mold Materials And Core Materials (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Catalysts (AREA)
  • Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Silicon Polymers (AREA)

Abstract

1409795 Graphite compositions HOWMET CORP 18 Oct 1972 [9 Nov 1971] 48059/72 Heading C1A [Also in Divisions C3 and B3] A core for use in the casting of high melting point metals comprises a shaped body formed of a graphite filler, a polysiloxane and a catalyst system for cure of the polysiloxane comprising the reaction product of a halide of a metal selected from Ti, Zr, Gd, Hf, Sb, Ta, In, Fe, Nb, Mo, W and Al and a boron compound selected from a trialkyl borate and a trialkoxy boroxine, e.g. Cl 2 Ti[OB(OCH 3 ) 2 ] 2 . In the specific Example (4) which refers to the use of graphite the graphite comprises a mixture of -200 mesh (Tyler) flour and 30-100 mesh (Tyler) particles. The composition is formed into the desired core shape and heated, suitably at 50‹ to 100‹F. perhour to 1200‹ F., which temperature may be maintained for 4 hours; thereafter the core is heated at 100‹ F. per hour until the core reaches 2050‹ F. and is held at this temperature to complete the baking and firing cycle and convert the polysiloxane to a siliceous material to bond the ceramic filler particles together.
GB4805972A 1971-11-09 1972-10-18 Casting of high metling point metals and cores therefor Expired GB1409795A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US19713071A 1971-11-09 1971-11-09

Publications (1)

Publication Number Publication Date
GB1409795A true GB1409795A (en) 1975-10-15

Family

ID=22728163

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4805972A Expired GB1409795A (en) 1971-11-09 1972-10-18 Casting of high metling point metals and cores therefor

Country Status (10)

Country Link
JP (1) JPS5143452B2 (en)
BE (1) BE791164A (en)
CA (1) CA983236A (en)
CH (1) CH575794A5 (en)
DE (1) DE2254674B2 (en)
FR (1) FR2159349B1 (en)
GB (1) GB1409795A (en)
IL (1) IL40779A (en)
IT (1) IT970320B (en)
SE (1) SE7511335L (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1930095A3 (en) * 2006-12-06 2008-06-18 General Electric Company Casting compositions for manufacturing metal casting and methods of manufacturing thereof
US20160144423A1 (en) * 2014-11-21 2016-05-26 General Electric Company Casting cores and methods for making
US9863254B2 (en) 2012-04-23 2018-01-09 General Electric Company Turbine airfoil with local wall thickness control

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55143383A (en) * 1979-04-24 1980-11-08 United Stirling Ab & Co Tubular heat exchanger
FR2569586B1 (en) * 1984-09-06 1986-09-12 Snecma PROCESS FOR THE PREPARATION OF FOUNDRY CORES AND CERAMIC COMPOSITION FOR USE IN CARRYING OUT SAID PROCESS

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1930095A3 (en) * 2006-12-06 2008-06-18 General Electric Company Casting compositions for manufacturing metal casting and methods of manufacturing thereof
US9863254B2 (en) 2012-04-23 2018-01-09 General Electric Company Turbine airfoil with local wall thickness control
US20160144423A1 (en) * 2014-11-21 2016-05-26 General Electric Company Casting cores and methods for making

Also Published As

Publication number Publication date
IL40779A (en) 1976-09-30
IL40779A0 (en) 1973-01-30
JPS4855120A (en) 1973-08-02
DE2254674B2 (en) 1976-10-14
DE2254674A1 (en) 1973-05-10
FR2159349B1 (en) 1975-03-28
JPS5143452B2 (en) 1976-11-22
CA983236A (en) 1976-02-10
CH575794A5 (en) 1976-05-31
FR2159349A1 (en) 1973-06-22
BE791164A (en) 1973-03-01
IT970320B (en) 1974-04-10
SE7511335L (en) 1976-05-10

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee