Production Technology of High Strength Phenolic Resin Casting Coating Sand
High strength Phenolic Resin Casting Coating Sand has been widely used in precision casting. Because of its high strength and high temperature resistance, it is more suitable for the production and manufacturing of parts with complex shapes and sizes.
High strength Phenolic Resin Casting Coating Sand is a kind of sand that consists of Phenolic Resin, special inorganic filler, dispersing agent, additive, extender and other raw materials. It has the advantages of high strength and heat resistance, which can be applied to the manufacture of precision casting and other production processes.
Phenolic resin is an important raw material for making high strength Phenolic Resin Casting Coating Sand. It is a kind of condensation resin obtained by condensing phenol and formaldehyde in an alkaline medium. It is used for binding and enhancing the mechanical properties of sand. It also can linking sand particles which increase the strength of sand.
The special inorganic filler is a mineral-based compound that can act as a binder and strengthen the sand. Its purpose is to reduce the shrinkage during the curing process, making it more heat resistant.
The dispersion agent is an important additive that can prevent the aggregation of sand particles and improve its workability. Additives such as silicone oil and wax can also be used to improve the gloss and surface quality of finished products. Extender is used to reduce the cost of making sand, and also increase the flexibility of sand for mould-making.
In the production process of High strength Phenolic Resin Casting Coating Sand, the raw materials should be accurately weighed and placed in a mixer. After the raw materials are evenly distributed, they should be kneaded by the mixer. The kneading time depends on the type of Phenolic Resin used. The kneaded material is then wrapped with plastic film and placed in a humidified curing oven until the curing process is completed. The cured material is off-flaked, screened and classed according to its size grade.
The entire production process of High strength Phenolic Resin Casting Coating Sand requires strictly controlled parameters. The temperature, humidity and viscosity of the mixture should be adjusted carefully according to the formulation of the material. All of the materials used in the production process should be kept strictly clean and dry, and should be stored properly to ensure the quality of the final product.
High strength Phenolic Resin Casting Coating Sand is widely used in the production of precision castings. Its advantages of high temperature resistance, low steam permeability and high strength make it an ideal choice for producing high-precision castings. Its use in precision casting and other related industries has been increasing steadily in recent years, further cementing its important role in the world production of industrial parts.
