Talk:Screen method

From PyroGuide

Maybe flash powder should be removed from this list? Quote from the flash powder page "Chemically, flash powder is highly unstable. It is a heat, static, friction, and impact sensitive explosive. It is considered to be one of the most volatile pyrotechnic compositions." whereas on this page it states that the screen method should only be used for compositions that are not friction or shock sensitive.

Methinks there's a contradiction maybe.

Maybe we should explain which mesh sizes are convenient for normal mixing. One should not think that a kitchen sieve is a good tool for general mixing. /Admiral

This article states that "flash powder and whistle mix should not be screened". So what list do you want flash powder to be removed from? /djdoru

[edit] Improvement?

Due to the fact that the "screen method" is a very essential process even in industrial pyrotechnics I personally find that we should further describe it. Although the existing article is good, some essential info is omitted: e.g. the very essential presieving operation is not described (I see numerous people wondering why e.g. the 60 mesh KNO3 they screened into the comp doesn´t do the job), specs for mixing screens are not given (mesh size etc.) and other. I see the chance of improvement. Maybe I will write down an alternative page suggestion based on pertinent literature in March. /Admiral

Mesh\Sieve is roughly described here http://pyroguide.com/index.php?title=Understanding_Mesh_Sizes_and_Microns

You can incorporate the articles in any way you like, possible quoting the table to the other article...

--Frogy 22:02, 5 March 2008 (EST)

What I meant with mesh is that there are no specs in the article which wire size is used for general mixing etc. I do not think a serious amateur will do every screening with a kitchen sieve only. /Admiral