What Is an Investment Mold?
When you hear people talk about an investment mold, they’re usually talking about the expendable ceramic mold used in the investa verŝado or perdita-vaksa fandado procezo. In simple terms, we build a precise wax copy of your part, surround it with a high‑performance ceramic shell, then melt the wax out and pour metal into the empty cavity.
Definition of an Investment Mold
An investment mold is a one-time-use ceramic shell that captures the exact shape of a wax pattern. It is:
- Built around a vaxŝablono (or a cluster of wax patterns)
- Made from refractory ceramic materials designed to handle high temperatures
- Destroyed at the end of the process to release the finished casting
Because the mold is broken away, we call it an expendable mold, not a reusable one like a die casting or permanent mold tool.
What “Investment” Means in Lost-Wax Casting
The word “investment” comes from the idea of “investing” the wax pattern in ceramic—in other words, completely surrounding it with a carefully engineered ceramic shell investment mold. We’re not talking about financial investing; we’re talking about:
- Coating the wax with keramika ŝmiraĵo
- Applying stucco sand on the outside
- Repeating layers until we have a strong, precise mold
This ceramic “investment” is what gives cURL Too many subrequests. its accuracy and detail.
How Investment Molds Differ from Sand and Permanent Molds
If you’re comparing processes, the investment casting mold cURL Too many subrequests.
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- Control ceramic shell permeability so gases escape without causing defects
When we engineer the shell materials, layer thickness, and firing cycle correctly, the result is a high-precision investment mold that gives you clean, accurate castings with a finish that often needs little more than light machining or polishing.