The Basic Concept and Technical Qualification of Bakelite Injection Molding

Due to the superior insulating properties of bakelite, its injection molding applications are widespread, including kitchen utensils, electromechanical accessories, and precision-injected products such as laptops, mobile phones, and automotive components. The materials used for bakelite injection molding require melting and plasticization at specific temperatures to achieve optimal melt flow and injection performance. Injection-grade bakelite powder exhibits excellent barrel thermal stability, maintaining its condition in the barrel for over 10 minutes at 120°C, and demonstrating suitable melt flow between 85-100°C with a barrel temperature preservation time of up to 20 minutes.

Key elements in the process include temperature (material temperature, cylinder temperature, mold temperature, drying temperature, oil temperature, ambient temperature), pressure (injection pressure, holding pressure, back pressure, ejection pressure, mold opening pressure, locking pressure), time (injection time, cooling time, drying time, calculation delay time), speed (ejection speed, retraction speed, mold opening/closing speed, ejection speed), and quantity (measurement, ejection volume, mold opening volume). These elements are interconnected and must be meticulously monitored and controlled considering factors such as product shape and mold structure to ensure optimal injection conditions.

Beyond production technology supervision, presenting high-quality products to customers also requires stringent qualifications, such as certifications. Dongguan Dowell Casting Products Co., Ltd. holds over 20 patents and completed the IATF certification in June 2020 for automotive component manufacturing. This technical standard applies to the entire automotive industry's supply chain for parts and services, including OEMs. In April 2002, Ford, General Motors, and Chrysler implemented a unified quality system specification for their suppliers, known as IATF 16949. Without this certification, suppliers cannot qualify as vendors for major automotive brands, underscoring the importance of IATF certification as a marker of qualified supplier status.