How to Use Forged Graphite Emulsion
As everyone knows, graphite emulsion has a very wide range of applications. This time, we’d like to introduce forging graphite emulsion, which is commonly used in die forging processes. So, how should it be used?
1. Before use, stir the emulsion thoroughly. After standing for a period of time, this product may develop a small amount of solid particles that have settled. However, after stirring, it will return to its original uniformly suspended state without any reduction in effectiveness.
2. Users can decide whether to dilute the stock solution and, if so, at what dilution ratio, based on their specific requirements or experience. The following ratios are provided for reference:
(1) For forgings with complex shapes that are difficult to demold, use a dilution ratio of 3-5 times for large-sized parts and a dilution ratio of 5-10 times for medium- and small-sized parts.
(2) For general forgings and precision-forged gears, dilute with water at a ratio of 5 to 15 times.
(3) The roll forging process can achieve a dilution factor of 20 to 30 times;
(4) For special process requirements, dilution is not necessary; it can be used directly.
3. To ensure an optimal coating effect, it is recommended to apply the coating using either an automatic or manual spray gun. Before use, dilute the graphite emulsion with tap water to a specified ratio, then fill it into the spray gun’s reservoir. Use compressed air at a pressure of 0.3–0.6 MPa to spray the mold in a fine mist. When the spray gun is left idle for an extended period, be sure to thoroughly flush out any residual graphite from the gun, piping, and nozzle to prevent graphite sedimentation from clogging the lines. Before resuming use, check that all components are unobstructed and shake the emulsion well to avoid sedimentation. The spray gun flow rate should be adjusted according to the requirements of the die forging process; typically, it ranges from 40 to 60 milliliters per second. For achieving a high-quality coating, it is best to avoid manual application methods, as such methods not only result in uneven coatings that impair lubrication and demolding performance but also lead to significant waste of the graphite emulsion.
4. After using graphite emulsion, be sure to seal it tightly and store it at room temperature. Do not expose it to direct sunlight. In winter, take care to keep it warm to prevent freezing.
The above is the usage method and precautions for graphite emulsion. In the forging industry, graphite emulsion is regarded as a new, highly efficient lubricant and mold-release agent currently produced domestically.