Custom thermoformed plastic parts manufacturer in China: History and Development of Compression Molding – The origins of compression molding trace back to the early 20th century, coinciding with the development of thermosetting plastics like Bakelite. Initially, it provided a practical way to mass-produce plastic components for electrical insulators, handles, and decorative items. Over time, as synthetic polymers advanced, compression molding adapted to accommodate reinforced composites, such as glass- and carbon-fiber materials. These innovations expanded its applications to aerospace and automotive industries, where lightweight yet strong parts are crucial. By the 1950s, the process became a cornerstone for manufacturing fiber-reinforced plastics, particularly for high-performance structural components. Modern developments, including computer-controlled presses and precision mold design, have significantly enhanced consistency and efficiency. Today, compression molding remains one of the most reliable methods for producing composite and thermoset parts, balancing tradition with innovation to meet contemporary industrial demands. Discover even more information at custom thermoformed plastic parts.
Our team of mold experts will write precision machining programs according to the design of the product, and have a very efficient and fast response. All accessories are provided by excellent suppliers, and the material report and physical performance report can transparently confirm that the mold has high-quality manufacturing capabilities. Reliable DFM is the key to our project. Because all processes are completed under our supervision, the DMF report is very credible and reliable. Relying on the uninterrupted sampling and testing by quality inspectors, the results of the first batch of samples will be quickly obtained, and the change trajectory of the product under different parameters will be recorded in detail. In order to inform you of the actual operation manual. Finally, we will send you all the test samples, and you will understand our test content, because you believe in Mulan Group, so you need to understand these processes more than we do.
Injection Stretch Blow Molding in the Beverage Industry – Injection stretch blow molding (ISBM) is the process of choice for making PET bottles, particularly in the beverage industry. The method begins by injection molding a preform, which is then reheated, stretched longitudinally, and blown into its final shape within a mold. The stretching aligns the polymer chains, greatly enhancing the material’s strength, clarity, and gas barrier properties. This makes ISBM bottles ideal for carbonated drinks, juices, and water. The process is divided into single-stage (integrated) and two-stage (separate preform and blow processes) systems, offering flexibility depending on production needs. ISBM’s ability to create lightweight yet durable bottles has driven its dominance in global packaging. Ongoing innovations, such as energy-efficient reheating systems and recyclable PET variants, are helping manufacturers reduce costs and environmental impact while maintaining the quality and performance consumers expect.
Compression molding parts are suitable for almost all industries. They can not only meet the size standards of complex structures, but also apply to high-temperature components, and meet the corrosion resistance of fuel, chemical, natural gas and other industries, as well as the resistance of equipment operation and mechanical parts. Grinding performance. Mulan Group has focused on the R&D and manufacturing of compression molding parts for more than 10 years, and has continuously accumulated manufacturing experience and expertise. Including: daily necessities such as silicone cleaning brush, tap descaling ball, headwear and so on.
Plastic overmolding metal: We use CNC machining/metal casting/sheet metal bending/sheet metal stamping on metal materials to pre-mold the designed substrate, and then wrap the plastic around the metal substrate at one time through overmolding, such as: pipe connectors , Electronic components, etc. Rubber overmolding metal: We use CNC machining/metal casting/sheet metal bending/sheet metal stamping on metal materials to pre-mold the designed substrate, and then wrap the rubber material on the surface of the metal substrate through overmolding to present a soft rubber layer. Such as fitness equipment, medical supplies, hammer handles, children’s toys, etc.
In the production process, it is difficult to completely fill the mold, and there are certain technical requirements. After the curing stage is over, different products have different stiffness, which has an impact on product performance. For products with high dimensional accuracy requirements (especially for multi-cavity molds), the process is somewhat short. The flash of the final product is thicker, and the workload of removing the flash is large. The shortcomings of compression molding are that the mold manufacturing is complicated, the investment is relatively large, and coupled with the limitation of the press, it is most suitable for mass production of small and medium composite materials.