Blues 0 Report post Posted July 13, 2003 yeah.. I am afraid I have to really cut down on my hourse in SGH. Prelim exam in about 3 more weeks ..sigh So stressful now .. Share this post Link to post Share on other sites
adhoc 0 Report post Posted July 13, 2003 the tin N@Z! the charlie brown TIN! the THREAD! Share this post Link to post Share on other sites
Blues 0 Report post Posted July 13, 2003 you mean the 'GUY' tin hoc? Share this post Link to post Share on other sites
evil-zen 0 Report post Posted July 13, 2003 sounds like you are going to do a organs transplant into it? Share this post Link to post Share on other sites
matbon0013 0 Report post Posted July 13, 2003 matbon, you'd better be careful! Huh! what are you on about? Share this post Link to post Share on other sites
N@Z 0 Report post Posted July 13, 2003 Exactly & the rusting & watnot?! That came out of the blue. Share this post Link to post Share on other sites
adhoc 0 Report post Posted July 14, 2003 from my experience, these tins are simply sheet iron coated with a thin layer of zinc/tin that prevents rusting. once you scratch the protective metal layer off, you expose the iron to moisture and oxygen. it then rusts. however, the rust CAN AND WILL spread UNDER the rest of the protective metal coating, causing it to flak and fall off just like it does in cars. Share this post Link to post Share on other sites
tee 0 Report post Posted July 14, 2003 adhoc, What about Hammond aluminium casing, would it be subject to similar rusting problem over long term ? Share this post Link to post Share on other sites
N@Z 0 Report post Posted July 14, 2003 OK adhoc, if I see that happen you'll be the first to know! Share this post Link to post Share on other sites
adhoc 0 Report post Posted July 14, 2003 (edited) aluminium does not rust, well, not 'rust' in the typical way we know it. iron does not react with water alone, nor oxygen alone. it reacts with both to form rust. for most applications, aluminium only reacts with oxygen. all aluminium objects have a layer of this oxide on it. but most aluminium objects we own are typically 'anodised' (remember your maglite torches?). this means that an electrolytic process is applied whereby the aluminium object is blasted with hot oxygen. this forms an extremely tough layer of aluminium oxide (over the comparatively soft aluminium metal) that is tough enough to withstand corrosion in most cases. the difference between anodising and letting a piece of aluminium react normally with the air is the thickness of the oxide layer. for anodising, it is much much much thicker. cubic zirconia, a form of aluminium oxide, is a material commonly used as faux-diamonds. IIRC, it not only approaches diamond in terms of hardness but also in terms of brilliance. your hammond case CAN be scratched, but that's about the worst that can happen. it will not continue to rust and eventually break apart into a powder like it would if it were made of iron and had it's protective covering scratched. Edited July 14, 2003 by adhoc Share this post Link to post Share on other sites
N@Z 0 Report post Posted July 14, 2003 Wow! You're like an encyclopedia man! Share this post Link to post Share on other sites
adhoc 0 Report post Posted July 14, 2003 (edited) i read up about all these things instead of revising my schoolwork.. hence my amazing results in school. go figure.. Edited July 14, 2003 by adhoc Share this post Link to post Share on other sites
N@Z 0 Report post Posted July 14, 2003 Sounds familiar! Imagine if we could all channel that energy into studies or work! Share this post Link to post Share on other sites
Blues 0 Report post Posted July 14, 2003 i read up about all these things instead of revising my schoolwork.. hence my amazing results in school. go figure.. wow hoc how many A1s did you score for ur Os man amazing!!! If I can borrow ur 'power' I think I become top student in my sch liao Share this post Link to post Share on other sites
ablaze 0 Report post Posted July 14, 2003 I got 8 A1s, 1 A2, and 1 C6..for higher chinese haha.. edit: good luck cookie Share this post Link to post Share on other sites
