Rubber is a very versatile material that is widely used in mechanical design.
**Features** Rubber, also known as elastomer, is a general term for materials that exhibit significant elasticity at room temperature. When a force is applied to the material, it deforms slightly, and when the force is removed, it returns to its original shape. This is elasticity. The range of elasticity is about 1-2% for metals and around 10% for plastics compared to the original length of the material, but rubber can reach several hundred percent. When a force beyond the elastic range is applied, the material undergoes plastic deformation and eventually breaks. The elasticity of rubber is due to the long, linear, soft, and coiled nature of rubber molecules. When a force is applied, the coiled molecules are stretched. If more force is applied, the molecules shift relative to each other, and they can no longer return to their original length even after the force is removed. This is plastic deformation. To prevent the molecules from shifting too much, they are slightly bonded together. This process is called vulcanization or cross-linking. Cross-linking is performed using vulcanizing agents and cross-linking agents, as explained in the section on 4-4 rubber chemicals. If cross-linking is excessive, the material becomes similar to thermosetting plastics, resulting in a hard, plastic-like material.
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**Types of Rubber** 〇 Fluoroelastomer (FKM) - Excellent chemical resistance - Excellent oil resistance - Excellent heat resistance - Excellent weather resistance - Poor cold resistance - Very expensive 〇 Silicone Rubber (Q) - Excellent heat and cold resistance - Excellent electrical insulation - Suitable for food and medical use - Translucent with an aesthetically pleasing impression - Soft and moist touch - Excellent weather resistance but may yellow slightly over time - Poor oil resistance - Low mechanical strength, prone to tearing - Poor adhesion 〇 Neoprene Rubber (CR) - Excellent weather resistance - Fairly good heat resistance - Excellent flame resistance - Relatively inexpensive - Poor cold resistance - Fairly poor electrical insulation Nitrile Rubber (NBR) - Good oil resistance - Good heat resistance - Relatively inexpensive - Poor weather resistance - Poor cold resistance 〇 Ethylene Propylene Rubber (EPDM) - Excellent water resistance - Excellent heat resistance - Excellent cold resistance - Excellent weather resistance - Excellent electrical insulation - Relatively inexpensive - Poor oil resistance
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Rubber has properties such as elasticity, durability, and abrasion resistance, and is used in various applications such as packing and clamps in our company.
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Company information
Production of shims and mounting plates made of iron, stainless steel, brass, etc. through laser processing. We can manufacture from CAD data as well as from Illustrator data. Additionally, we can also produce from physical samples, handwritten notes on paper, or image data. Production of packing and gaskets using various rubber materials. Production of packing and gaskets from various joint sheet materials. Furthermore, with a milling machine attached to a cutting plotter, secondary processing such as machining after cutting is also possible. Please feel free to contact us if you have any requests.