Unit 3 Glass Manufacturing

What is the process introduced in the UK by Sir Alastair Pilkington in 1959?

• Float Glass Process

• Blow and Blow Process

• Press and Blow Process

• Down-drawn Method

What are the main components of soda lime glass?

• Soda, lime, and silica sand, cullet

• Soda, calcium oxide, and boron

• Silica sand, cullet, soda and boric acid

• All of the above

What temperature does the molten glass reach in the furnace?

• 1000°C

• 1500°C

• 600°C

• 1100-1300°C

What is the purpose of the annealing chamber?

• To cool the glass

• To reduce internal stress

• To cut the glass

• To wash the glass

What is the down-draw process used for?

• To produce thin glasses

• To produce thick glasses

• To produce colored glasses

• To produce glass fibers

What is the Blow and Blow method used for?

• To produce bottle glass

• To produce jar glass

• To produce flat glass

• To produce glass fibers

What is the first step in the Press and Blow method?

• Gob dropped into blank

• Plunger presses blank shape

• Blank pressed

• Final shape blown

What is the main advantage of the down-draw process?

• Pristine surfaces

• Low thickness of the sheet

• High flexibility in output

• All of the above

What is the best method can be used to produce screen display of IPAD?

• Blow and Blow process

• Press and Blow process

• Float glass process

• Down drawn process

Name the molten metal used in float glass process.

• Silver

• Tin

• Glass

• Brass