Vermiculite..........where and what to buy? - Metallurgy and other ...
网页2019年11月4日 · Good idea. When I used to anneal 10XX steels I usually preheated the vermiculite, and then put the blade in there with a larger hot bar at the same time. Sandwich a file between two bars of 3/8 x 1 mild, heat to bright orange, then jam it in the preheated vermiculite. Buttery soft the next day! Probably had terrible grain growth, though.
Annealing in Vermiculite - Bladesmith's Forum Board
网页2007年11月1日 · Simple steels like the 10XX series and low alloys like W1 or 5160 can be successfully softened up in a bucket of vermiculite. The more the better. Most guys keep a 5-gallon bucket full for that purpose. You can get a longer and better anneal by putting the blade between two heavy-section bars in the vermiculite, being sure the blade and the ...
Propagation:Vermiculite vs perlite - Dave's Garden
网页2008年12月7日 · It seems to me that vermiculite (fine grade) is best for seeds and has the wonderful property of totally eliminating damping off without the need to spend time and energy in sterilising the compost. My method is - for non-crevice plants - basic mix 1 part each peat, vermicompost, fine vermiculite, sand. On this I put ½" of fine vermiculite.
Vermiculite - Beginners Place - Bladesmith's Forum Board
网页2010年3月17日 · The vinegar I use now takes a ridiculously long time, and I just want an acid that is faster and relatively cheap. Anyway, thanks a ton for any help! -Dan. Lowe's sell vermiculite - 3.5 cubic feet for $23. Works great. Ferric Acid (16 oz. PCB Etchant Solution) can be purchased at Radio Shack for $10.
Vermiculite versus Perlite? - Bladesmith's Forum Board
网页Posted April 3, 2007. Get a piece of 2" steel pipe, stainless, threaded on both ends. Weld one cap on. Place blades and small piece of paper in steel tube, screw on cap tight. Into heat treatment oven, for 10XX, go to 1600, let cool at 50 degree down to 1300, leave in furnace over night to cool.
Propagating Plants From Cuttings - Dave's Garden
网页2018年2月9日 · If you want to take cuttings, gather your materials beforehand. You’ll need sharp, sterile pruning scissors, shears, or a knife. If you plan to plant your cuttings right away, have containers filled with potting mix, vermiculite, or perlite on-hand. You may also be able to place the cuttings in water until they form roots.
4 Little Used Soil Amendments that Make a Big Difference - Dave's …
网页2022年8月20日 · We all know about compost, vermiculite and minerals such as lime and potassium, however there are some little-known options that you can use to improve the health and structure of your container and in-ground growing mediums that are available that will give your garden a great boost. Bat guano improves your soil
Can you Substitute Pearlite for Vermiculite? - Metallurgy and other ...
网页2005年7月7日 · I also think that the vermiculite would be the better insulator of the two. I have also often heard of light powders, like MgO (lime), ash, and even cement powder being used. Have aslo thought obout using refractory wool - I have seen a table that shows it is a way better insulator than pearlite and powdered MgO at least.
Organic Gardening:Vermiculite vs. Perlite - Dave's Garden
网页2012年7月12日 · Something like 15 times as much for 10% more money. Instead of buying Perlite OR Vermiculite, I now buy pine bark (mulch or nuggets). Adding plenty of those to a mix (like 2-10 parts bark per 1 part of peaty mix) makes it much more airy and MUCH cheaper. $4.20 for 2 cubic feet is something like 28 cents per gallon.
Homemade refractory cement - Bladesmith's Forum Board
网页2010年11月1日 · There was a big fuss a few years back when the vermiculite from one specific mine (now closed) in Montana was discovered to contain a high amount of friable asbestos fibers. There were no reports of asbestosis among folks who used it, but the people who live and work in the town around the mine …