We will introduce the molding process of rubber products called compression molding.
SK selects materials according to their intended use and provides total support from rubber and resin mold design → mold manufacturing → product molding → inspection → delivery, delivering quality products and reliable services to our customers. Here, we will introduce the molding process of rubber products known as "compression molding" within the realm of rubber, plastic resin, and metal processing. SK - Regarding rubber processing technology -
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basic information
First, rubber materials and curing agents are thoroughly mixed multiple times using a roller mill. If pigments are to be added, the required amount is added at this stage to adjust the color. The materials mixed on the roller mill are then shaped to the thickness suitable for each product. The sheet-like material is cut according to the size and structure of the mold. The mold is set in a press machine, and the previously cut rubber material is loaded into it. Heat and pressure are applied to the mold (pressing). This process shapes the clay-like rubber material. The products taken out of the mold have excess material that forms thin flash. After that, each piece is carefully finished by removing the flash, making it nearly complete. In the case of silicone rubber, a "secondary curing" process is performed in this oven, where additional heat is applied. This process reduces the low molecular siloxanes contained in the silicone rubber, resulting in high-quality silicone rubber products. The finished products are checked for compliance with the specified dimensions using measuring instruments. Finally, a complete inspection is conducted, and only the good products are delivered to the customer. At SK, we take great care and attention to detail in delivering our products to customers with confidence.
Applications/Examples of results
SK has the following production achievements. Production can be tailored to your budget, quantity, and other preferences, with options for domestic and overseas production. Industrial and household silicone rubber, rubber resin, plastic resin, metal processing, and molding of sponge materials. Antibacterial processing of silicone rubber, production of medical silicone rubber products, and novelty goods production. Molding of fluororubber sponge, slicing of industrial rubber products, and gasket production. ■ Design and production of various rubber and resin molded products from mold design. Industrial prototypes (test mold production), mold design and production, processing without molds (cutting, water jet processing, etc.). Casting (cast molding), rubber mold production (food-grade rubber molds and general molds), dip molding. ■ Sale and processing of rubber raw materials. Silicone rubber, fluororubber, lubricants, silicone oil, fluororubber paint, adhesives (we also accept processing such as bonding and coating).
Detailed information
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Rubber Molding Method First, the rubber material and curing agent are thoroughly mixed several times using a roller machine. If pigments are to be added, the required amount is added at this stage to adjust the color.
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Silicone mold manufacturing The material kneaded with a roll machine is adjusted to the thickness suitable for each product. The sheet-like material is then cut to match the size and structure of the mold.
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SK Rubber Processing Cutting Process Part 2 Silicone Rubber Processed Product Cutting Process
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SK rubber mold forming (press method) Heat and pressure are applied to the mold (pressing). This process shapes the clay-like rubber material. The products removed from the mold have excess material that forms thin burrs. After that, a careful finishing process is performed to remove the burrs, and the product is nearly complete.
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Secondary vulcanization of silicone rubber involves applying additional heat in this furnace. This process reduces the low molecular siloxanes contained in the silicone rubber, resulting in high-quality silicone rubber products.
Company information
For inquiries, please contact SK Corporation directly. We provide total support from mold design to product manufacturing for robot development materials, IoT device materials, VR, and medical molded products. 【SK's Strengths】 In response to customer requests, we manufacture products with the shortest delivery times and at low prices through our unique manufacturing network, from mold design to mold production (prototype and mass production) → product manufacturing → inspection → delivery. In the case of medical development products, we support the manufacturing of products that ensure safety for customers, patients, and medical professionals using medical-grade materials and materials that have passed biocompatibility tests. Production bases: Overseas and domestic (nationwide, mainly in the Kanto region). For information on lsoration-related products, standard products such as scientific instruments, safety protective equipment, and experimental materials, please also visit the SK_WEB site (search for "Scientific and Safety Protection Comprehensive SK").
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