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  • 2310-2020
    What is a screw

    What is a screw

    Screw is a combination of simple machines—it is, in essence, an inclined plane wrapped around a central shaft, but the inclined plane (thread) also comes to a sharp edge around the outside, which acts a wedge as it pushes into the fastened material, and the shaft and helix also form a wedge in the form of the point. Some screw threads are designed to mate with a complementary thread, known as a female thread (internal thread), often in the form of a nut, or object that has the internal thread formed into it. Other screw threads are designed to cut a helical groove in a softer material as the screw is inserted. The most common uses of screws are to hold objects together and to position objects.

  • 1210-2020
    Fastener surface treatment process

    Fastener surface treatment process

    For the surface treatment of fasteners, people generally pay attention to aesthetics and anti-corrosion, but the main function of fasteners is to fasten parts, and surface treatment also has a great influence on the fastening performance of fasteners, so choose the surface When handling, the factor of fastening performance should also be considered, that is, the consistency of installation torque-pre-tightening force.

  • 2108-2020
    The development status of titanium alloy for aviation fastener is introduced

    The development status of titanium alloy for aviation fastener is introduced

    Titanium alloy fasteners are widely used in aerospace because of their low density, high specific strength and corrosion resistance. The development status of titanium alloy materials for aviation fasteners is reviewed. Combined with the development of titanium alloy for fasteners, the application status of titanium alloy for fasteners at home and abroad is introduced, and the performance characteristics of titanium alloy materials for fasteners are compared and analyzed. At the same time, combined with the requirements of advanced aircraft for high-performance fasteners, several high-strength and toughness titanium alloy materials for fasteners and their fastener processing technology are introduced.

  • 0108-2020
    Concept of high temperature and high pressure fastener

    Concept of high temperature and high pressure fastener

    Brief introduction of several common standards for high temperature and high pressure fasteners

  • 2907-2020
    Analysis of bolt fracture causes

    Analysis of bolt fracture causes

    Generally, we analyze bolt fracture from the following four aspects: First, the quality of bolts Second, the pre tightening torque of bolts Third, the strength of the bolt Fourth, the fatigue strength of bolts

  • 0605-2020
    Specification of fastener basic knowledge

    Specification of fastener basic knowledge

    Fastener is a kind of mechanical part which is widely used for fastening connection. It is widely used in various machinery, equipment, vehicles, ships, railways, bridges, buildings, structures, tools, instruments, chemicals, instruments and supplies. It is the most widely used mechanical foundation. It is characterized by a wide variety of specifications, different performance uses, and standardization, seriation, generalization of the degree is also very high. Therefore, some people also call a kind of fastener with existing national standards as standard fastener, or referred to as standard fastener for short.

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