Plastic manufacturing is a dynamic industry. With the constant evolution of technology, new materials and methods are being developed to make products easier to use. As our daily lives revolve around plastic, this industry continues to thrive. Here are some of the major technologies that make plastics useful. Some of these processes are extrusion molding, compression molding, and jetting binder. Find out which one is right for your business.
The process of compression molding in plastic manufacturing is a highly versatile process that offers a wide range of material properties. In many cases, the process produces composite parts of varying complexities that have similar mechanical and strength properties to metal parts. Compression-molded parts also offer anti-corrosive properties and require minimal post-fabrication machining. These benefits make compression molding an excellent choice for composite materials. To learn more about the benefits of compression molding, read the following.
The process involves forming a molded part from a thermoplastic material. Typical thermoplastic materials include polyurethane and Bakelite, which are common in mass production applications. Glass fiber mat and long fiber reinforced thermoplastics are leading technologies used in automotive applications. Compression molding requires explicit material and energy measurements, and the mold design is essential for adequately shaping the shot. In addition, a high-quality compression mold requires a rapid cooling process.
When the plastic material is molten, it is forced through a die to create a finished product. The die has been carefully designed to produce the exact shape of the finished product. The newly formed tube is then cooled with the help of a water bath or powerful fans. Although plastic is an excellent insulator, the process takes a long time. Once the process is complete, the finished product is extracted from the machine.
The process of extrusion molding allows for detailed features and complex geometry. The method also enables the use of multiple plastic types at once. Extrusion molding creates products in long cross-section shapes and forces the material through a die. Once cooled, the finished product is cut and sent on for additional processing. It is one of the most popular plastic manufacturing processes. The advantages of this process are many. Extrusion molding is a versatile and effective method for forming two-dimensional shapes.
The Binder Jetting process is a form of additive manufacturing that can be used to produce a variety of parts, from simple to complex. Binder jetting is commonly used in giant sand casting patterns and has several key benefits over other advanced 3D printing techniques. The printer has two tanks: one contains the powdered printing material, while the other includes the infiltrating agent. A leveling roller spreads the first layer of powder over the platform while the print head sprays the binding agent in 80 mm or larger droplets. Layer after layer, the binder jetting process forms the part or object, if necessary, in color.
A Binder Jetting process begins by spreading a thin layer of powder over a build platform. Then, a carriage equipped with inkjet nozzles selectively deposits a binding agent over the powder bed. The build platform moves downward when the layer is complete, and the blade recoats the part’s surface. This process is repeated until the piece is finished. Finally, the powder coats the printed part, encasing it. After the piece has been cured, it is removed from the powder bed and cleaned.
One of the most common open-molding processes for plastics is spray-up. This process applies resin and reinforcements to a mold using a spray gun. The resin and reinforcements can be separately sprayed or combined as a stream from a chopper gun. The spray-up is then compacted by workers, who add foam or wood to the laminate. To form a sandwich construction, a secondary spray-up layer is added to imbed a core between two layers of laminates.
Spray-up molding processes use a combination of a chopper and spray gun to deposit reinforcement into the mold. Typically, each ply is pre-impregnated with a small amount of resin. In some cases, this process uses a wet lay-up, where the resin is applied after each ply is laid into the mold. The resin is then evenly distributed on the surface of the part. This technique produces parts with simple geometries and smooth surfaces.
Compounding also called blending, combines different types of plastic to make a new material. This mixture is then molded into a specific shape. The process allows for various plastics to be combined and manipulated using a wide variety of shaping tools. This type of plastic fabrication is also advantageous for the environment as it helps reduce the waste of plastic materials. The following are some of the benefits of compounding plastic fabrication.
Die-cutting is a type of plastic fabrication that uses specialized machines to convert raw material into a shaped product. The process is popular among manufacturers due to its speed, replicability, and sturdiness. The advantages of die-cutting plastic are numerous.