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  2. Glass casting - Wikipedia

    en.wikipedia.org/wiki/Glass_casting

    Kiln-Cast lead crystal. Kiln casting involves the preparation of a mould which is often made of a mixture of plaster and refractory materials such as silica. [7] A model can be made from any solid material, such as wax, [8] wood, or metal, and after taking a cast of the model (a process called investment) the model is removed from the mould.

  3. Chvorinov's rule - Wikipedia

    en.wikipedia.org/wiki/Chvorinov's_rule

    Where t is the solidification time, V is the volume of the casting, A is the surface area of the casting that contacts the mold, n is a constant, [clarification needed] and B is the mold constant. This relationship can be expressed more simply as: = Where the modulus M is the ratio of the casting's volume to its surface area:

  4. Magnesium oxide wallboard - Wikipedia

    en.wikipedia.org/wiki/Magnesium_oxide_wallboard

    Magnesium oxide wallboard (10 mm thickness) Magnesium oxide, more commonly called magnesia, is a mineral that when used as part of a cement mixture and cast into thin cement panels under proper curing procedures and practices can be used in residential and commercial building construction.

  5. Daum (studio) - Wikipedia

    en.wikipedia.org/wiki/Daum_(studio)

    Daum vase, circa 1900. Daum is a crystal studio based in Nancy, France, founded in 1878 by Jean Daum [1] (1825–1885). His sons, Auguste Daum (1853–1909) and Antonin Daum (1864–1931), oversaw its growth during the burgeoning Art Nouveau period.

  6. Lead glass - Wikipedia

    en.wikipedia.org/wiki/Lead_glass

    Cut glass wine glass made of lead glass. Lead glass, commonly called crystal, is a variety of glass in which lead replaces the calcium content of a typical potash glass. [1] Lead glass contains typically 18–40% (by mass) lead(II) oxide (PbO), while modern lead crystal, historically also known as flint glass due to the original silica source, contains a minimum of 24% PbO. [2]

  7. Early American molded glass - Wikipedia

    en.wikipedia.org/wiki/Early_American_molded_glass

    Early American molded glass refers to glass functional and decorative objects, such as bottles and dishware, that were manufactured in the United States in the 19th century. . The objects were produced by blowing molten glass into a mold, thereby causing the glass to assume the shape and pattern design of the m

  8. Spin casting - Wikipedia

    en.wikipedia.org/wiki/Spin_casting

    The spin casting process typically uses vulcanized silicone or organic rubber as the mold-making substrate. Vulcanization is an integral step that occurs halfway through the mold-making process. Prior to vulcanization, the mold rubber is a soft and malleable solid-like fluid, in many ways very similar to Silly Putty. Because of the clay-like ...

  9. Ingot - Wikipedia

    en.wikipedia.org/wiki/Ingot

    Aluminium ingot after ejection from mold Pouring molten gold into a mold at the La Luz Gold Mine in Siuna, Nicaragua, about 1959. An ingot is a piece of relatively pure material, usually metal, that is cast into a shape suitable for further processing. [1] In steelmaking, it is the first step among semi-finished casting products. Ingots usually ...

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