Silicone Parts Manufacturer

How a Silicone Parts Manufacturer Fabricates Silicone Parts

Silicone manufacturing is a precision process, and there are several key steps in the fabrication of silicone parts. When working with a Silicone Parts Manufacturer, it’s important to be familiar with these stages.

Custom manufacturer of molded, extruded and liquid injection molded (LIM) silicone rubber products for the cleanroom, medical, biomedical, automotive, aerospace, electronics, dental and department of defense industries. Prototype and low to high volume production runs available.

Custom Injection Molding

Custom injection molding is one of the most cost-effective methods for producing high-quality silicone parts. The process allows for fast production times and can produce thousands of parts per hour depending on part complexity and mold cavitation. Silicone injection molded parts offer excellent thermal, chemical and electrical resistance and have low compression set.

Getting ready for injection molded parts begins with the initial product design. This can be a sketch on a napkin or a detailed CAD drawing. The initial design must take into account a range of factors, including the dimensions of the part, its functional purpose and quality requirements.

The design must also consider the mechanical properties of the part and its environment. For example, the Wall – Mounted Lithium Battery design should allow for ribs or gussets to add strength. It is best to work with a supplier that offers engineering and product development services so that the initial design is optimal for manufacturing.

Once a final design has been approved, it can be built in an injection molding tool. It is important to work with an experienced provider of injection molding services to ensure that the initial design meets all of the required specifications. Experienced providers will be able to better facilitate the injection molding process, mitigate issues like flash and create the highest quality silicone parts.

Custom Extrusion

Custom extrusions are an effective way to create a variety of shapes, sizes and lengths with close tolerances. The process involves pushing uncured raw material through a designed heated die that shapes the product into a uniform cross-sectional profile. Then, the raw material is washed and cooled before cutting to meet specification.

Most extruders have in-house painting and anodizing capabilities or established finishing service relationships that allow them to provide finished and fabricated components. They can also imprint text, logos and graphics on one or both sides. They serve automotive, construction, electronics, food processing, military and transportation industries.

Extruded silicone is available in a wide range of thicknesses and opacities. Custom fabricated sizes, shapes and colors are often available. Various processing methods can be used, including steam autoclave, salt bath, hot air vulcanization (HAV) and pole curing.

Manufacturer of custom-molded and extruded rubber, elastomer, plastic and silicone tubing and profiles. Services include engineering, design and product development, cleanroom assembly and tooling construction. Liquid injection molding services for medical, automotive, consumer products and government safety and security industries are offered as well.

Custom Casting

The final step of production after the 3D printed master pattern is created is to cast a mold from liquid silicone. The resulting mold can be poured with various urethane and other casting resin materials to produce a finished part.

Casting allows for greater flexibility of shape and size than injection molding. This is useful for creating elongated parts such as bellows or diaphragms that must maintain a flexible structure that will not break under strain. Additionally, casting can be used for creating a solid sleeve around a metal component to protect it from chemicals or water.

Vacuum casting works better than injection molding for elongated parts because it can tolerate variable wall thickness without distortion. This is because the injected liquid does not experience the same heating-cooling cycle as the cast material, allowing for significantly more undercuts and complex geometries.

Liquid silicone rubber can be molded to a wide variety of durometers. This can be measured using a Shore scale which ranges from 00 for very soft or stretchy materials to 70 for hard, rigid materials. This makes it possible to create a wide variety of products that are both soft and durable, such as squeegees or golf club grips.

Casting also allows for the use of cores to create openings or cavities that cannot be formed by the mold pattern alone. This is especially useful for creating bladders or inflation bulbs that require a hollow internal space to hold a lower density material.

Custom Fabrication

Custom fabrication companies offer a variety of services that combine to create finished products. They usually start with metal, which comes in two forms: sheet and structural. Sheet metal is flat metal stock that comes in rectangular sheets or in rolls of various sizes and thicknesses. Structural metal is metal stock that has already been formed into a shape, such as angles, channels, pipes and hollow structural shapes (HSS) with circular cross-sections.

The fabricator may also offer a variety of secondary services, such as machining, cutting, knurling and drilling. Some offer assembly, packaging and kanban or JIT delivery services. The company may also offer laser or rotary die and water jet cutting to produce a wide variety of 2D and 3D parts.

A specialty fabricator makes parts out of Liquid Silicone Rubber (LSR). LSR is a two-component lifepo4 battery silicone elastomer used to make injection molded components that require high thermal stability, good rubber-like properties and resistance to aging. The fabricator can cut the LSR into a wide range of shapes.

A custom fabricator can also offer compression, transfer and overmolding services for silicone, fluorosilicone, neoprene, natural rubber, Viton(r), SBR and Buna-N. The company can manufacture gaskets, novelty products, seals and stoppers to serve aerospace, automotive, construction, electrical, food or beverage processing industries. The company can provide a rapid turnaround to support prototype and low to medium production runs.