Hey guys this is Jason with Mount Baker Foundry and today we're gonna be making
a video showing you how we pour our high chrome hammers for our hammer mills at
Mount Baker Mining an Metals. And we'll start off showing you the actual pouring
of the metal and then at the end of the video I'll talk a little bit about the
patterns and the material we use and I'll show you a shakeout and what the hammers
look like and how we get them cleaned up and and then a barrel of our finished
product. So take a look at how we pour our hammers and then I'll show you and
explain a little bit more in detail about how the whole process works.
And here's a look at our pattern here for our hammers, you got three on a board
there. And we've just pulled the pattern out of the drag here, you see we used the
sand cores to keep the metal out of the hole where the shaft goes or the pins
and we pour metal down here in the sprue and it feeds through these gates right
into the hammer pattern and fills the box up with that white iron we used for
our hammers. For our steel we just take steel scraps out of the shop at Mount
Baker Mining and Metals, old skeletons off our prop table and other material that this
scrap and we melt it down with our Faro chrome and we can turn it into hammers
turn into something useful. Here's the material that we mix with our scrap
steel to get our chrome content. This is a ferro-chrome, it's about 68 percent
chrome and about 8 percent carbon. And we mix this 30 pounds for every 70
pounds of scrap steel and that ends up getting us our 20% chrome content with
about 2.5 percent carbon and it makes the Hammers really really
abrasion resistant.
And here's the last of our scrap steel and ferro-chrome going into the pot. We
have about 500 pounds here, and once that gets all molten and ready to pour, we
pour it into the ladle then we come over to our boxes here and we pour them into
our box. So we can do it about 15 boxes at a time and three hammers to a box so you
get about 45 pounds or 45 hammers per box. So we're taking one of our boxes after
our pour here and we're doing our shakeout.
there's our hammers. Other man: they're still a little warm! Yeah they're still warm. It's a little early but I wanted
to get them on video so... And they'll clean up when they cool down the sand
will all knock off them. So here's a batch of hammers report after we've
knocked the gates and sprues off, so now we just have the hammers. They're still
covered in sand so we got to clean those up. Over here is no little pile from a
previous pour we got to clean up. But then bring them over this belt sander
here and work down the rough spots on them and then we end up with it with a
finished hammer. Looks like that they go right in our hammer mills. So hope you
guys enjoyed the video on how to pour white iron hammers. If you have any questions
or comments please let us know, our information is in the description below.
So thanks for watching and we'll see you on the next video.