Archive for the ‘Chemistry’ Category
Strongest alloy for casting?
lol wut asked:
if you wanted to manufacture cast metal tools with the highest strength and heat/corrosion resistance, what metal or alloy would you use?
Bronze Metal Casting
if you wanted to manufacture cast metal tools with the highest strength and heat/corrosion resistance, what metal or alloy would you use?
Bronze Metal Casting
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Smelting and casting wood\’s metal?
Professional Eschatologist asked:
I have a crap ton of wood’s metal that I want to divy up and sell. However, whenever I melt it, some of it turns to black sludge, which is hard to seperate from the metal itself. How can I stop this?
Home Metal Casting
I have a crap ton of wood’s metal that I want to divy up and sell. However, whenever I melt it, some of it turns to black sludge, which is hard to seperate from the metal itself. How can I stop this?
Home Metal Casting
Chemical (acid?) to soften a niche or concrete so hard to break?
dalton asked:
I’ve seen a round concrete with more or less 4 meters in diameter and about 18 inches thick broken into 3 from a foot of a mountain. Visible from one piece are 7 empty casts probably from gold bars and 2 empty cast contained probably metal box measuring 6 x 6 x 12 inches. We thought a chemical was used to break the concrete.
Now, a friend found a niche down a river. It appeared after an erosion due to a flood. It’s so hard to break. Anyone here knows what kind of chem is that used to soften concrete?
Bronze Metal Casting
I’ve seen a round concrete with more or less 4 meters in diameter and about 18 inches thick broken into 3 from a foot of a mountain. Visible from one piece are 7 empty casts probably from gold bars and 2 empty cast contained probably metal box measuring 6 x 6 x 12 inches. We thought a chemical was used to break the concrete.
Now, a friend found a niche down a river. It appeared after an erosion due to a flood. It’s so hard to break. Anyone here knows what kind of chem is that used to soften concrete?
Bronze Metal Casting
When people refer to \”Blacking Iron\” what is the procedure?
Bluebird asked:
I have some old cast iron I want to get the rust off of and make the metal black, rust free.
Metal Casting Basics
I have some old cast iron I want to get the rust off of and make the metal black, rust free.
Metal Casting Basics
substance which solidifies, when solid, has hight thermal conductivity and can withstand high pressure force?
cndags asked:
is there any substance or composition that i can use to substitute to our steel mould making process to avoid machining steel to make rubber vulcanization moulds? instead, i could make these moulds in the for of casting them to produce te mould? i would like to find any substitiute for metal, which has high thermal conductivity and can withstand the pressure for vulcanization without breaking. this would help me produce custom made moulds for custom jobs, instead of spending time in machining steel to make a mould for a part… i was thinking something like, having it in liquid form like cement, then just pour it into a part, to produce a negative/ cavity… then when it solidifies, i just pull out the part… then use the mould to produce or vulcanize a almost replica part… or at least, lessen the machining for it… that would make our product development faster…. any help guys? need high thermal conductivity or at least same as steel… that’s the most important factor….
Metal Casting Blog
is there any substance or composition that i can use to substitute to our steel mould making process to avoid machining steel to make rubber vulcanization moulds? instead, i could make these moulds in the for of casting them to produce te mould? i would like to find any substitiute for metal, which has high thermal conductivity and can withstand the pressure for vulcanization without breaking. this would help me produce custom made moulds for custom jobs, instead of spending time in machining steel to make a mould for a part… i was thinking something like, having it in liquid form like cement, then just pour it into a part, to produce a negative/ cavity… then when it solidifies, i just pull out the part… then use the mould to produce or vulcanize a almost replica part… or at least, lessen the machining for it… that would make our product development faster…. any help guys? need high thermal conductivity or at least same as steel… that’s the most important factor….
Metal Casting Blog
Chemical (acid?) to soften a niche or concrete so hard to break?
dalton asked:
I’ve seen a round concrete with more or less 4 meters in diameter and about 18 inches thick broken into 3 from a foot of a mountain. Visible from one piece are 7 empty casts probably from gold bars and 2 empty cast contained probably metal box measuring 6 x 6 x 12 inches. We thought a chemical was used to break the concrete.
Now, a friend found a niche down a river. It appeared after an erosion due to a flood. It’s so hard to break. Anyone here knows what kind of chem is that used to soften concrete?
Metal Casting DIY
I’ve seen a round concrete with more or less 4 meters in diameter and about 18 inches thick broken into 3 from a foot of a mountain. Visible from one piece are 7 empty casts probably from gold bars and 2 empty cast contained probably metal box measuring 6 x 6 x 12 inches. We thought a chemical was used to break the concrete.
Now, a friend found a niche down a river. It appeared after an erosion due to a flood. It’s so hard to break. Anyone here knows what kind of chem is that used to soften concrete?
Metal Casting DIY
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