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Fastening

Fasteners generally refer to the intermediate connecting parts that connect two components, and are commonly used in construction projects for external diameter Φ The fixation of the 48mm steel pipe scaffold is divided into right angle fasteners (cross fasteners and directional fasteners), rotating fasteners (movable fasteners and universal fasteners), and docking fasteners (straight type fasteners and direct fasteners).

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National standard cast fasteners

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product description

Fasteners generally refer to the intermediate connecting parts that connect two components, and are commonly used in construction projects for external diameter Φ The fixation of the 48mm steel pipe scaffold is divided into right angle fasteners (cross fasteners and directional fasteners), rotating fasteners (movable fasteners and universal fasteners), and docking fasteners (straight type fasteners and direct fasteners).

The fastener is the intermediate connecting part between the steel rail and the sleeper. Its function is to fix the steel rail on the sleeper, maintain the gauge and prevent the longitudinal and transverse movement of the steel rail relative to the sleeper. On the track of concrete sleepers, due to the poor elasticity of concrete sleepers, the fasteners still need to provide sufficient elasticity. To this end, fasteners must have sufficient strength, durability, and a certain degree of elasticity, and effectively maintain a reliable connection between the steel rail and the sleeper. In addition, it is also required that the fastening system has fewer parts, is easy to install, and is easy to disassemble.

There are various types of fasteners, mainly including new types of fasteners, steel pipe scaffolding fasteners, cast steel fasteners, T-shaped construction fasteners, concrete sleeper fasteners, wooden sleeper fasteners, steel rail fasteners, Foslow fasteners, malleable steel fasteners, scaffolding fasteners, railway fasteners, steel plate stamping fasteners, docking fasteners, rotating fasteners, and right angle fasteners.

Steel fasteners are generally divided into cast steel fasteners, steel plate stamping, and hydraulic fasteners. The production process of cast steel fasteners is roughly the same as that of cast iron, while steel plate stamping and hydraulic fasteners are made by pressing 3.5-5mm steel plates through stamping and hydraulic technology. Steel fasteners have superior performance in various aspects, such as fracture resistance, slip resistance, deformation resistance, detachment resistance, rust resistance, etc. At present, the largest manufacturer of cast iron fasteners in China is concentrated in the Cangzhou region of Hebei, with a market share of about 80%; The market share of steel fasteners is approximately 5-10%, and the main manufacturers are distributed in Hebei, Chongqing, Xinjiang, and other places.

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