|Raw materials, such as borax, are blown
into the mixer for compounding. The compounding materials are carried
into the melting furnace through the computer-controlled conveyer.
||Glass materials are melted with heat
of about 1,600 degrees centigrade in an electric melting furnace.
Around 20 tons of glass per day on average can be melted evening
using glass itself as a conductor.
||Melted glass is formed by blowing,
pressing, or pressing and blowing.
||Glass pieces are heated to about 580
degrees centigrade in a leer, and cooled down gradually to correct
unevenness. This facilitates working.
||At the finishing process, the computer-controlled
chill-cutting machine works the shape and the size of glass pieces
for each product.
||An auto-printer machine prints graduations
and patterns on finally worked products in up to four colors.
||A baking furnace called the decollating
leer bakes and dries printed graduations or patterns printed on
||Accessories, such as ears and caps,
are attached, and products are packed.
Ball-shaped glass at 1,300 degrees centigrade of heat is extended
evenly by a 16-head automatic forming machine. This machine produces
25 glass pieces in the basic form on average per minute by rotating
the glass ball, and forming with the blowing pressures and centrifugal
Head-lens and headlights for automobiles are produced by pressing
glass put in a mold. Press-and-blow-forming
Press-forming and blow-forming
are carried out in a row. This method has allowed us to manufacture
heat-resistant screw-lid bottles.
Complex or special parts, such as a glass ear and a siphon foot,
are manually worked