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GBT1683 Compression Set of Vulcanized Rubber

Product Describe

Vulcanized Rubber Compression Deformation Apparatus

1. The compression plates consist of a pair of parallel, flat, high-gloss steel plates, between which the specimen is compressed. The surface roughness Ra of the compression plates shall not exceed 1.6 μm.
1. The compression plates shall have: sufficient rigidity to ensure that they do not deform under compression; steel plates are recommended. They shall also be large enough in size to ensure that, when the specimen is compressed between the two plates, the entire specimen remains entirely within the area covered by the compression plates.
2. The limiter provides the corresponding compression ratio.
3. The shape and dimensions of the restrictor should be designed to avoid contact with the compressed specimen. The recommended heights for the restrictor are (8 ± 0.02) mm, (7 + 0.02) mm, or (6 ± 0.02) mm; the selection of the restrictor height should meet the requirements for the specimen compression ratio.
4. A fastener is a threaded device consisting of a bolt and a nut.
6. Dimensions: The specimen is cylindrical, with a diameter of (10 ± 0.2) mm and a height of (10 ± 0.2) mm. The height difference among specimens within the same group shall not exceed 0.05 mm.

7. Preparation of Specimens: The specimens shall be directly vulcanized using molds. Their surfaces must be smooth and mutually perpendicular and parallel. The specimens should be free of bubbles, impurities, or damage. Alternatively, specimens may be cut from vulcanized rubber sheets meeting the thickness requirements specified in 5.1 using a circular cutter with an inner diameter of (10.2 ± 0.02) mm. During the cutting process, the blade of the cutter may be lubricated with a neutral soap solution, and the cutter should be advanced slowly to minimize any taper in diameter.

Samples prepared using the different methods mentioned above may yield varying test results, making the test results incomparable.

Company Profile

Hebei Yinfeng Experimental Instrument Co., Ltd. is a high-tech enterprise dedicated to the research and development, production, and sales of experimental instruments. The company is headquartered in Hebei Province, relying on the strong industrial foundation and technological innovation resources in the Beijing Tianjin Hebei region. It is committed to providing high-precision and high reliability testing equipment and solutions for material testing, engineering quality control, scientific research experiments and other fields.

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GBT1683 Compression Set of Vulcanized Rubber

1. Compression Deformation Apparatus for Vulcanized Rubber: The compression plates consist of a pair of parallel, flat, high-gloss steel plates between which the specimen is compressed. The surface roughness Ra of the compression plates shall not exceed 1.6 μm. The compression plates shall possess sufficient rigidity to ensure that they do not deform under pressure; steel plates are recommended. The plates shall also be large enough in size to ensure that, when the specimen is compressed between them, the entire specimen remains entirely within the area defined by the compression plates. A restrictor is provided to control the degree of compression. The shape and dimensions of the restrictor shall be designed so as to avoid any contact with the compressed specimen. The recommended heights of the restrictor are (8 ± 0.02) mm, (7 ± 0.02) mm, or (6 ± 0.02) mm; the selection of the restrictor height shall meet the requirements for the desired compression ratio of the specimen. The fastening device consists of a screw assembly comprising bolts and nuts. 6. Dimensions: The specimen is cylindrical, with a diameter of (10 ± 0.2) mm and a height of (10 ± 0.2) mm. The height difference among specimens within the same batch shall not exceed 0.05 mm. 7. Preparation of Specimens: The specimens shall be directly vulcanized using molds, and their surfaces shall be smooth, mutually perpendicular, and parallel. The specimens shall be free from bubbles, impurities, or damage. Alternatively, specimens may be cut from vulcanized rubber sheets meeting the thickness requirements specified in Section 5.1 using a circular cutter with an inner diameter of (10.2 ± 0.02) mm. During cutting, the blade of the cutter may be lubricated with a neutral soap solution, and the cutting process should be carried out slowly to minimize tapering of the diameter. Specimens prepared by the above-mentioned different methods may yield varying test results, and such results cannot be compared.

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