Jump to content
Da big tuna

Mold Pouring Problem( Jig Collar Incomplete)

Recommended Posts

Everyone try to take a crack at this. I have looked through the forums but cant get a good read on my problem. I am pouring the flipping jig mold by do- it. I have the proper size hook and base mold pin. I use a lee IV production pot and I have it on the setting 4. I can't seem to get the collars to pour on the jig. I sooted up the mold real good with a candle and It is pretty good lead i'm using. Any one care to make a diagnosis ?

Thank you for any help

Link to comment
Share on other sites

I'm going to say that #4 on a Lee IV bottom pour pot is not hot enough. You have to keep it on at least #7. If it's really cold out in my garage I put it on #8. I think what's happening is that your lead is cooling way too fast before it gets into the mold. Also at #4, your mold is probably not hot enough to let the lead flow. Crank it up and watch your troubles disappear. That's my suggestion. Let's hear what the rest of you guys have to say.

Link to comment
Share on other sites

I'm going to say that #4 on a Lee IV bottom pour pot is not hot enough. You have to keep it on at least #7. If it's really cold out in my garage I put it on #8. I think what's happening is that your lead is cooling way too fast before it gets into the mold. Also at #4, your mold is probably not hot enough to let the lead flow. Crank it up and watch your troubles disappear. That's my suggestion. Let's hear what the rest of you guys have to say.

+1 :yay:

Link to comment
Share on other sites

check your spout, it might be clogged up and not pouring enough. I ran into that just the other day with similiar problems as your explaining.

+2 on the others thoughts. Also, Gloomisman brings up a good point. This has happened to me on more than one occasion. I use remelted and skimmed tire weights a lot. A few times, some impurity has made it down into the spout and it reduces the lead flow to a small twisted stream. Always when this happens I get a faulty pour down to the collar. If this is the problem, higher heat and getting the mold really hot doesn't help. you will still get the incomplete pours. Only a good thorough cleaning of the lead pot and spout will take care of this.

John

Edited by JBlaze
Link to comment
Share on other sites

The higher I go with the heat the lead runs out the spout like crazy. Someone else had this problem and I dont know if he got it fixed . I run pretty good lead but I dont flux and never had. Never had a problem but Im thinking the heat is it . As soon as I can get back at it Ill let you know. Isn't this fun .

Edited by Da big tuna
Link to comment
Share on other sites

Everyone try to take a crack at this. I have looked through the forums but cant get a good read on my problem. I am pouring the flipping jig mold by do- it. I have the proper size hook and base mold pin. I use a lee IV production pot and I have it on the setting 4. I can't seem to get the collars to pour on the jig. I sooted up the mold real good with a candle and It is pretty good lead i'm using. Any one care to make a diagnosis ?

Thank you for any help

I'd try less lead in the pot; this will allow the lead to heat faster and that setting its way to low. I run mine at 9 in the winter. I always pour lead on the sides of do-it molds. It helps heat up your molds faster. It the come out bad take needle nose and dip them back in the pot. Good luck!!! B)

Link to comment
Share on other sites

The higher I go with the heat the lead runs out the spout like crazy. Someone else had this problem and I dont know if he got it fixed . I run pretty good lead but I dont flux and never had. Never had a problem but Im thinking the heat is it . As soon as I can get back at it Ill let you know. Isn't this fun .

"FLUX' !!!!!!!

Read past posts on fluxing some really good stuff.

It really sounds like you have some bad stuff in this batch of lead that is stopping it up.

Again "FLUX" if its just sitting in the pot you could get some type of corrosive action.

2 cents worth

Good Luck and let us know when U get it fixed.

JSC

Edited by JSC
Link to comment
Share on other sites

Don't know if this is relevant or not, but I've been hand-pouring tin jigs using thru-wire forms, and I was having a somewhat similar problem: there were holes in the tin where the form was showing through. I started heating the forms before I put them in the mold and the problem went away. I suppose you could try the same with your hooks. I use a Hot Pot 2, so it was a simple matter of putting the forms on the metal stand that holds the ladle and letting them heat up while the tin was melting.

Link to comment
Share on other sites

Okay here's a update:

I cranked the heat on the pot and still the same problem. I had a few jig that were bad so I melted the lead off the hook and put the hook in the mold and poured it again. It turned out perfect. So then I lit a candle and ran the hook over the candle for like 5 seconds and put in in the mold. Perfect again. So I solved the problem by sooting the hook first . Any comments? I solved my problem but I don't no why or how. Anyone care to comment?

Link to comment
Share on other sites

Okay here's a update:

I cranked the heat on the pot and still the same problem. I had a few jig that were bad so I melted the lead off the hook and put the hook in the mold and poured it again. It turned out perfect. So then I lit a candle and ran the hook over the candle for like 5 seconds and put in in the mold. Perfect again. So I solved the problem by sooting the hook first . Any comments? I solved my problem but I don't no why or how. Anyone care to comment?

I think what you are experiencing by doing that is you are heating the hook. By heating the hook, and putting it in the mold, you are now allowing the lead to flow around the entire hot hook. There are no cold spots in the mold. The process you found is common, especially on cold days and is used especially on bigger hooks. I put all my hooks in the winter time, on a black tray, and put a 100 watt light bulb over the hooks to keep them warm. Many guys put them on a hot plate to keep them warm, you can also lay them on top of the flat part of the pot to keep them warm. As far as sooting hooks and molds, I personally do not do this. I do not believe this helps, however that is the way that I do things. If it works for you then by all means keep doing it. You will find that as you pour more and more, there is no one way to do things. You will find that what works for you may or may not work for someone else. Also remember that all of the help you get here are only guidelines. We are all guessing at what a problem is we are not there with you to see what you are actually doing or what is happening. Some info will work some of it won't. However like you posted, please always give everybody feedback, so we can all learn from the newbies toall of us seasoned(stubborn) pros.

Link to comment
Share on other sites

Okay here's a update:

I cranked the heat on the pot and still the same problem. I had a few jig that were bad so I melted the lead off the hook and put the hook in the mold and poured it again. It turned out perfect. So then I lit a candle and ran the hook over the candle for like 5 seconds and put in in the mold. Perfect again. So I solved the problem by sooting the hook first . Any comments? I solved my problem but I don't no why or how. Anyone care to comment?

I doubt it was the soot - next time, just heat up the hook in a way that doesn't produce soot and see what happens. I suspect you've been using cold hooks and the metal has been cooling and "grabbing" before it has a chance to reach the collar. The closer you can get the temperature of your mold and inserts to the temperature of the metal, the more time the metal will have to fill the mold before it solidifies.

Link to comment
Share on other sites

Everyone try to take a crack at this. I have looked through the forums but cant get a good read on my problem. I am pouring the flipping jig mold by do- it. I have the proper size hook and base mold pin. I use a lee IV production pot and I have it on the setting 4. I can't seem to get the collars to pour on the jig. I sooted up the mold real good with a candle and It is pretty good lead i'm using. Any one care to make a diagnosis ?

Thank you for any help

Hi,

I had the same problem. I found the the lee pot(i got the 420) does not get the lead hot enough when filled up with lead it will perform a bit better with around 3" in it.Then it can get hot enough. I basically use my pot as a pre heater for the lead. I ladle pour everything now heating it with a propane torch. hotter lead pours so much nicer,its bright, clean and shows great detail on molds with scales and lines. the other possible problem is you are not filling the mold fast enough, adjust the flow for a faster pour the lead is cooling a bit before it is filling the collars. I almost positive heat is the problem.... get a ladle and give it a try (Hotter is better) it may save you some frustration and save you some time remelting the bad ones.

hope this helps...

Chaotic baits

Link to comment
Share on other sites

Cadman as usual nailed this one. on tough to pour molds you have to keep everything hot before you pour......hotter lead, hot molds, and warmed hooks.

I keep my lee pot on 7 or 8 depending on how cold the shop is that day, and when pouring some molds even 9. I set the mold on top of the pot while the lead is heating, and I hang the hooks on a wire that I have suspended next to the side of the pot.......keeps them hot but not so hot I can't handle them.

I also SLIGHTLY enlarged the spout to allow the lead to flow a little faster........that was a big factor in a couple of my molds that can be a pain at times. I don't remember what the size of the bit was, but it was only 1.64 or 1/32 bigger than the spout was.

Edited by clamboni
Link to comment
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.
Note: Your post will require moderator approval before it will be visible.

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.

Loading...


×
×
  • Create New...
Top