how pencil and pen made..???
Answers
Answer:
The core of a pencil is made of graphite, clay, and water. During the 17th century, the graphite and clay were grounded down by hand, put into a cylindrical mold, and fired in a kiln. Today, pencils are mass-produced by machines that cut down the wood, insert the lead, and stamp or print a design
Manufacturing of Pens!
The core of a pencil is made of graphite, clay, and water.
During the 17th century, the graphite and clay were grounded down by hand, put into a cylindrical mold, and fired in a kiln.
Today, pencils are mass-produced by machines that cut down the wood, insert the lead, and stamp or print a design.
The points of most ballpoint pens are made out of brass, which is an alloy of copper and zinc.
This material is used because of its strength, resistance to corrosion, appealing appearance, and ability to be easily formed.
Other parts, like the ink cartridge, the body, or the spring can also be made with brass.
Hope it helps...
