Tungsten alloy bending mold inserts

Details Tungsten alloy bending mold inserts Tungsten alloy bending mold inserts

1985-08-12

1986-07-01

Kellogg, Arthur

Glass manufacturing

Processes

Reshaping or surface deformation of glass preform

65 24, 65287, 65289, 6537412, C03B 2302

Patent

active

045977895

ABSTRACT:
A shaping rail uses tungsten alloy inserts to support a glass sheet during sag bending. As the glass sheet is heated and sags to shape, tungsten alloy inserts provide support points over which the glass sheet can slide without scuffing the glass sheet surface or embedding particles in the glass sheet that can result in venting.

REFERENCES:
patent: 3184259 (1965-05-01), Almdale
patent: 3443922 (1969-05-01), Settino
patent: 3976462 (1976-08-01), Sutara
patent: 4119428 (1978-10-01), De Angelis et al.
patent: 4159842 (1979-07-01), Perkowski

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