GB536173A - Improvements in or relating to the production of composite refractory articles - Google Patents

Improvements in or relating to the production of composite refractory articles

Info

Publication number
GB536173A
GB536173A GB28875/39A GB2887539A GB536173A GB 536173 A GB536173 A GB 536173A GB 28875/39 A GB28875/39 A GB 28875/39A GB 2887539 A GB2887539 A GB 2887539A GB 536173 A GB536173 A GB 536173A
Authority
GB
United Kingdom
Prior art keywords
mould
slip
interior
shell
casting
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
GB28875/39A
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.)
REINHOLD AUGUST SCHAEFER
Hartford Empire Co
Original Assignee
REINHOLD AUGUST SCHAEFER
Hartford Empire Co
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 REINHOLD AUGUST SCHAEFER, Hartford Empire Co filed Critical REINHOLD AUGUST SCHAEFER
Publication of GB536173A publication Critical patent/GB536173A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B28B1/26—Producing shaped prefabricated articles from the material by slip-casting, i.e. by casting a suspension or dispersion of the material in a liquid-absorbent or porous mould, the liquid being allowed to soak into or pass through the walls of the mould; Moulds therefor ; specially for manufacturing articles starting from a ceramic slip; Moulds therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Mold Materials And Core Materials (AREA)

Abstract

536.173. Casting refractory articles. HARTFORD-EMPIRE CO. Oct. 27, 1939. No. 28875. Convention date, Sept. 7. [Class 87 (ii)] A composite refractory article is formed by casting a slip for the outer layer in a plaster mould, allowing the slip to set to form a shell of the desired thickness, withdrawing surplus slip and casting within the shell a slip of different composition for the interior of the article. As shown applied to a glass feeder tube, a shell 18 is first formec between a plaster core 15 anc mould 13 the surplus slip being removed by inverting the mould after which the mould is reinverted and the slip for the interior 19 is introduced through a pair of funnels 16 sufficient being allowed to remain in the funnels to compensate for shrinkage. When the interior slip has set, the top 14 of the mould is removed, the core 15 is withdrawn and the composite article removed by inverting the mould upon a support and raising mould. The outer layer is formed of a composition having a higher coefficient of expansion than the inner layer, in particular, tabular corundum. The interior may be of a similar composition or may comprise a corundum dispension or powder, 1 cc. kaolin and ball clay with a trace of aluminium powdeer to form a porous interior. Examples of compositions for the outer layer and interior are given.
GB28875/39A 1939-09-07 1939-10-27 Improvements in or relating to the production of composite refractory articles Expired GB536173A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US536173XA 1939-09-07 1939-09-07

Publications (1)

Publication Number Publication Date
GB536173A true GB536173A (en) 1941-05-06

Family

ID=21985464

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28875/39A Expired GB536173A (en) 1939-09-07 1939-10-27 Improvements in or relating to the production of composite refractory articles

Country Status (1)

Country Link
GB (1) GB536173A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2269337A (en) * 1992-08-06 1994-02-09 Labgas Res Lab Ltd Ceramic simulated log

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2269337A (en) * 1992-08-06 1994-02-09 Labgas Res Lab Ltd Ceramic simulated log

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