GB617383A - Improvements in or relating to the manufacture of refractory substances - Google Patents

Improvements in or relating to the manufacture of refractory substances

Info

Publication number
GB617383A
GB617383A GB2902446A GB2902446A GB617383A GB 617383 A GB617383 A GB 617383A GB 2902446 A GB2902446 A GB 2902446A GB 2902446 A GB2902446 A GB 2902446A GB 617383 A GB617383 A GB 617383A
Authority
GB
United Kingdom
Prior art keywords
ozs
bentonite
mixture
flask
added
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
GB2902446A
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.)
ALFRED DEACON
Birmingham Small Arms Co Ltd
Original Assignee
ALFRED DEACON
Birmingham Small Arms 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 ALFRED DEACON, Birmingham Small Arms Co Ltd filed Critical ALFRED DEACON
Priority to GB2902446A priority Critical patent/GB617383A/en
Publication of GB617383A publication Critical patent/GB617383A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/16—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silicates other than clay
    • C04B35/18—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silicates other than clay rich in aluminium oxide
    • C04B35/195—Alkaline earth aluminosilicates, e.g. cordierite or anorthite
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/16—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silicates other than clay
    • C04B35/18—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silicates other than clay rich in aluminium oxide

Abstract

A mould made by the "lost wax" process or other refractory article is produced by subjecting to a temperature over 500 DEG C. a suspension of sillimanite in water mixed with a suspension of bentonite in alcohol. 10 lb. of sillimanite sand (30 mesh) is mixed with 2 litres of water and a mixture of 1 1/2 to 3 ozs. of bentonite with 200 c.c. of alcohol is added. This mixture is poured into a flask in which a wax pattern is mounted, the flask is agitated for 20 - 50 mins., surplus liquid is removed, and, after 2 hours air drying, the mould is removed from the flask, dried in air for 12 hours, and baked for say 3 hours. To make the mould, before baking, less friable, the mixture may contain 4 to 12 ozs. of bentonite and 4 to 12 of magnesium sulphate be added. In another modification the mixture contains 3.2 ozs. of bentonite and magnesium silicate is added or formed during the process by adding 5 ozs. of silica, 3 of boric acid, 2 of light magnesium oxide, and 1 of magnesium chloride.
GB2902446A 1946-09-28 1946-09-28 Improvements in or relating to the manufacture of refractory substances Expired GB617383A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2902446A GB617383A (en) 1946-09-28 1946-09-28 Improvements in or relating to the manufacture of refractory substances

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2902446A GB617383A (en) 1946-09-28 1946-09-28 Improvements in or relating to the manufacture of refractory substances

Publications (1)

Publication Number Publication Date
GB617383A true GB617383A (en) 1949-02-04

Family

ID=10285028

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2902446A Expired GB617383A (en) 1946-09-28 1946-09-28 Improvements in or relating to the manufacture of refractory substances

Country Status (1)

Country Link
GB (1) GB617383A (en)

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