5 Reasons Why You Need to Clean Molds in Production

 Molds are one of the most common types of complex manufacturing tooling and the most crucial component of injection molding equipment. A lot of products made of metal, rubber, various plastics & other materials are obtained by pressing measuring blanks or injecting a dosed amount of molten raw materials into the inner space of a closed form - between a fixed matrix and a punch capable of making translational movement. To ensure the operability of injection molding equipment, a necessary service operation is the periodic cleaning of molds. According to the Mold manufacturers in China, it is done by adhering fragments of raw materials, carbon deposits, scale, and other deposits on internal surfaces.

Traditional Methods of Cleaning Molds

Contaminants on the walls of detachable injection molds and supply channels of molten raw materials are removed using solutions of active chemical liquids or mechanically. These methods are imperfect, since mechanical cleaning is hampered by the complex geometry of parts and the presence of hard-to-reach cavities in the mold, and the chemical method is dangerous for personnel and requires the disposal of large quantities of spent reagent. In addition, cleaning according to any of these methods is long in time and causes some harm to the molds, thinning the special protective coating of the working surfaces.

Cryo blasting is the Most Perfect Method of Cleaning Injection Molding Equipment

The widespread cleaning of molds with dry ice allows you to quickly and efficiently service machine parts without damaging them. Combining the humane impact of brittle dry ice granules with the effect of partial freezing and separation of contaminants by "micro explosions" of the released carbon dioxide, this method of purification is the best - both from a technical and economic point of view. The use of cryo-blasting technology to restore the required cleanliness of molds has at least 5 advantages over chemical and mechanical methods:

1. Ensuring high-quality products. Only cryo-blasting can provide the perfect quality of cleaning and completely remove carbon deposits, adhering particles of raw materials, and scale of the process fluid from the walls of the molds, which do not allow obtaining the necessary smoothness and cleanliness of the surface of the manufactured products.

2. Reduction of equipment downtime. Dry ice cleaning is extremely fast, so the mold is removed from the injection molding machine for a minimum time, which allows you to maintain a given schedule for the release of finished products.

3. Economic feasibility. Even taking into account the relatively high cost of the cryo-blasting procedure, this technology saves money due to less equipment downtime, no costs for wastewater treatment - as with the chemical method, and the release of personnel who were previously involved in long and laborious work to remove contaminants and carbon deposits by mechanical means.

4. Safety for the environment. After cleaning with dry ice, only fragments of contaminants that have fallen off the walls and extracted by a jet of granules from the internal channels of the mold remain to be removed. Solid carbon dioxide particles evaporate without leaving a trace.

5. Extending the service life of molds due to the absence of damage that is inevitable during mechanical and chemical cleaning. In addition, dry ice turns into a gas without moistening the surface & cannot cause corrosion damage to the metal.

Hope this article helps you to understand the benefits of using clean mold. If you want quality molding products, then connect with top Mold manufacturers in China. With them, you can find quality injection molds that you can use in any kind of manufacturing activity. Visit now!