Getting Started
Safety First
Lead Information
Casting Equipment
Casting Tips
Special Instructions
Select from the following models
Troubleshooting
Warranty
Charts
|
Casting Problem Diagnosis Guide
| PROBLEM |
SOLUTION |
| Casting Incomplete |
1,2,3,4,5,6,7,11,12,or
13 |
| Flash Around Castings |
6,8 |
| Inserts Do Not Fit |
6 |
| Pull Pin Rod Difficult
to Remove |
9,10 |
| Castings Look Wrinkled |
1,2,3,4,7,12,or 13 |
- Allow lead to heat longer before using.
- Pre-heat mold by making
several castings without inserts.
- Pour a fine stream of lead directly
into the cavity gate. Do not flood the sprue or fail to pour directly
into the gate.
- Some electric units will not heat lead to maximum
temperature when completely full. Try with only 1/2 full.
- Spinner-jig
wire form and hook eye must be in the cavity center to fill properly.
- Wrong
insert - check specifications.
- Try a different lead alloy (see instructions).
Wheel weight or tire weight metal is the cause of many molding
problems.
- Foreign object on the surface of the mold prevents it
from closing tightly. Look for small specks of lead or other particles.
Remove by carefully scraping away with a knife. Just remove the
particle, not the surface of the mold.
- Oil pin lightly or smoke
with carbon soot before first use.
- Remove rod quickly before the
solidifying lead shrinks and grips the pin.
- Air trapped inside cavity.
This can occur with a new, very tight mold. Test by placing a small
piece of paper between the surfaces of the mold. A small corner
of an adhesive label or gummed paper, like the seal on an envelope
or corner of a postage stamp, will serve very well for this purpose
by temporarily adhering to the molds’ surface.
The paper will not allow the mold to close absolutely tight, and
this small gap will permit air to escape from the cavity. If complete
castings are obtained, leave the paper in place until the mold
is broken in (usually 100-200 castings) and then remove it.
- Lead
is not entering the cavity fast enough and lead is cooling too
soon. Clean pour spout on bottom pour furnace. Large cavities may
require ladle pouring to fill fast enough. Pour quickly.
- Smoke the
mold cavities by positioning them just above a candle’s
flame. A thin coat of black carbon soot will form which will help
the flow of molten lead into the cavities and also make it easier
to remove the cast lead parts
|
|