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How the ballpoint pen tops/caps are made to fit the body?

How the ballpoint pen tops/caps are made to fit the body?

Postby sankar » 24 Nov 2006, 10:18

Please tell me how ball point pen tops are made. Pls explain me with the manufacturing process
sankar
 

Re: How the ballpoint pen tops/caps are made to fit the body

Postby Guest » 19 May 2009, 20:28

what are the main ingrediant of the ball point pen
Guest
 

Postby ChristinLang » 13 Aug 2009, 12:22

Various colored juices, extracts, and suspensions of substances from plants, animals, and minerals also have been used as inks, including alizarin, indigo, pokeberries, cochineal, and sepia. For many centuries, a mixture of a soluble iron salt with an extract of tannin was used as a writing ink and is the basis of modern blue-black inks.
ChristinLang
 
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Joined: 13 Aug 2009, 11:53
Location: United States

How ballpoint pen tips are inserted

Postby Cheng » 16 May 2010, 13:20

I suppose the body of the tip is heated so that the metal will expand. As soon as the ball is inserted, it is cooled to room temperature so that it will shrink again. This is similar to the principle of bolting airplane parts.

Cheng
Cheng
 


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