GottMitUns

Do you call this clinker?

Recommended Posts

I built and ran a side draft forge this week burning construction scrap in Nicaragua.  I am used to burning charcoal and expected to have to burn a lot more wood than charcoal by volume but I didn't expect this.

IMG_1977.thumb.JPG.73eab0b2c98cce77f1598

 

 IMG_1978.MOV

I had to rake out about a baseball size chunk of this stuff every hour to keep the tweir pipe open.

the construction scraps were growing tree 2-3 weeks before and all of it was coated with a thin layer of mud/dirt

Every so often I would get some on the steel I was working and it acted like hot glass.

So is it clinker, or is that term only for coal and coke?

Share this post


Link to post
Share on other sites

Sure looks like clinker to me.  Gotta say, that's the first time of heard of this problem being associated with something other than coal, not that that's saying a whole lot.  Did you have a hard time forge welding in that fire?  Clinker will cause that problem as well.

Share this post


Link to post
Share on other sites

Sure is, clinker is melted dirt and scale that collects at the bottom of the fire unless it sticks to the work. Any fire that gets hot enough to fuse silica will make clinker given a chance, just try putting a SMALL dirt clod in a gas forge sometime.

Frosty The Lucky.

Share this post


Link to post
Share on other sites

I dont usually burn wood directly in the forge, i make a fire a suitable distance away and use a long handled posthole shovel to sneak fresh coals from underneath the burning timber. it works fine if you dont get distracted and turn them to ash.

Share this post


Link to post
Share on other sites

I dont usually burn wood directly in the forge, i make a fire a suitable distance away and use a long handled posthole shovel to sneak fresh coals from underneath the burning timber. it works fine if you dont get distracted and turn them to ash.

Do you get distracted by the chops(lunch) on the rack above the fire? If so it's understandable.:D

Share this post


Link to post
Share on other sites

Thanks Guys, I wanted to make sure I had my terms right! We never had a chance to forge weld anything on this trip but I talked them thru the basics of it.

Share this post


Link to post
Share on other sites

You're probably scooping up some dirt along with the hardwood coals and that could contribute to forming clinkers with charcoal.

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.