What Is Jewelry Casting?
Casting wax, high and medium temperature precision casting pellets, bead-like, high hardness, small linear shrinkage, good toughness, good stability, can be used repeatedly. In addition, there are supporting products such as water-soluble casting wax, repairing wax, and bonding wax; model wax is used as a casting material for artwork casting and precision machine tool processing. Of course, bead casting wax is commonly used for jewelry casting.
Foundry wax
- Melting temperature: 105 110
- Keeping temperature: 55 60
- Injection temperature paste: 55 60
- Injection temperature liquid state: 63 68
- Injection pressure: 20 30kg / c
- Mold temperature: 20 25
- The colors of wax are usually dark red, pink, plum red, lake green, light green, dark blue, light blue, and royal blue. The most commonly seen on the market is light blue (of course, the color itself does not affect the period function, but only the visual effect ,Personal preferences)
- In order to better use wax materials, we have the following suggestions:
- A. About liquidity:
- 1. Increasing the wax injection pressure can eliminate the ripples and streamlines on the surface of the wax.
- 2. Bubble problems may occur during wax injection or when the wax is conveyed into the wax mold, the flow velocity is too fast to generate turbulence and bubbles. This phenomenon can be solved by reducing the conveying speed and increasing the diameter of the wax injection.
- B. Relevant linear shrinkage often depends on wax injection temperature and pressure, intermittent and mold temperature, so reduce linear shrinkage:
- 1. Increase wax injection pressure.
- 2. Check whether the mold reaches the required temperature.
- 3 Increase the cycle waxing time.
- 4 Increase the diameter of the wax injection port of the mold.
- The domestic foundry wax is usually bead-shaped, of course, there are other, such as FREEMAN in the United States, in the form of flakes, this wax is currently high in the market, so domestic producers generally use bead-shaped because of its The price is moderate and the performance is good. The following are the product numbers and specifications:
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LL-S662 | Lulin brand 662 wax beads | 25Kg / bag | Suitable for all silica sol process castings |
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