Power Tool Rotor Shaft Shaft BMC Composite Material

The power tool insulation process is the key technology of the power tool, and the rotor shaft insulation technology is one of the important processes of the power tool manufacturing. It plays a decisive role in ensuring personal safety for hand-held double-insulated power tools. BMC composite material, a new material with great application value and vitality, plays an increasingly important role in the field of insulating shafts of power tools.

BMC composites are new thermosetting materials that were developed in the early 1970s. In the United States, it is called bulk molding compound (BMC), in England and Europe it is called bulk molding compound (DMC), and in Japan it is called premix (PMC). BMC composite material is made of high-activity unsaturated polyester resin or its modified resin as a matrix, and is pre-mixed with low-shrinkage resin, chopped glass fiber, inorganic filler and modifier, release agent, pigment, etc. Molding plastics. Because it has the basic characteristics of thermosetting plastics, but also has the advantages of enhancing engineering plastics. In particular, BMC's tensile strength, impact strength, heat resistance, dimensional stability, insulation, leakage resistance, arc resistance, rigidity, flame retardancy, abrasion resistance, chemical resistance, physical properties, and low expansion coefficient, Very low shrinkage, processability, free coloring, etc. are irreplaceable for other raw materials. It is therefore an ideal material for the production of electric tool rotor shafts.