Gester Instruments | Professional Textile, Footwear and PPE Testing Equipments Manufacturers Since 1997
The conditions of textile abrasive wear and its different forms
The abrasive wear of textiles is caused by the following different conditions: The friction between textile materials, such as rubbing the jacket or coat lining on the shirt, and the friction between the trouser pocket and the trouser fabric. The friction between the textile material and external objects, for example, the friction between the pants and the seat, the friction between the yarn and the needle, etc. Friction or grit between the fiber and dust will cause the fiber to be cut. This is a very slow process and may be observed on hanging flags or swimsuits due to uncleared sand. Friction between fabric components. Flexure, stretching and bending of the fibers during use can cause the fibers to slip, rub against each other and break. There are three different forms of abrasive wear: micro-cutting, wedge-shaped and plow-shaped; during the operation of the system, there may be a transition from one mode to another, and the modes can work at the same time. In plowing mode, a shallow groove is formed, which requires repeated loading to form wear particles. In wedge processing, wedge-shaped wear fragments are formed. In the micro-cutting mode, long and curly ribbon-shaped particles are produced. The shape, hardness, load and shear strength of the contact interface determine the abrasive wear state. The abrasion coefficient of the metal is in a range that depends on the conditions, and is larger than the abrasion of the adhesive. Therefore, the grinding mode is mainly severe wear.
The Heat Contact Machine GT-C101 is a specialized testing instrument designed for evaluating the heat resistance and thermal protective performance of gloves, protective clothing, and other heat-resistant materials used in high-temperature environments. In industries such as smelting, casting, welding, and glass manufacturing, workers are frequently exposed to intense heat, making accurate testing of contact heat resistance essential for ensuring safety and compliance.
GT-C101 simulates real working conditions by measuring heat transfer delay and thermal transmission under instant contact with high-temperature surfaces. Fully compliant with EN 407, EN 702, and ISO 12127-1 standards, this machine provides precise, repeatable data for manufacturers, laboratories, and research institutions. With high-temperature capability up to 500°C, advanced calorimetry, digital monitoring, and adjustable contact speed, the Heat Contact Machine GT-C101 is an indispensable tool for developing and certifying next-generation PPE and heat-insulation materials.
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