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Flare nut in operation

The primary indicators of our civilization are systems: water supply, conditioning, gas, hydraulic. Despite its ugly form, these are complex multicomponent systems. People working in technical areas know how important small elements are, which is used for joining two parts - a union nut, coupling or fitting. Without these parts, it would be impossible either to create units, or cars, or to conduct communication systems in homes.

The nut has a simple structure

The simplest in its design and manufacture is the nut, which is used for axial and radial mounting. So what is the union nut and how did you deserve your celebrity? The main function of the union nut - connecting, is performed by the method of winding, soldering or sealing. It is a ring or a hollow rod with a rolled thread in the inner cavity, and the outer part can be of different types, but they all have faces for grasping the tool.

Made according to GOST

All kinds of nuts are made strictly according to GOST, that is, all the proportions of sizes are worked out, the material of manufacture is provided. Such products fully meet all test requirements, strength characteristics and fit the purpose. Modern nakidnye nuts are very functional: for manufacturing new materials are used, new forms are given, alloying elements in alloys are used. Nuts with a protective function have already appeared, which can be used on very critical parts or systems.

The union nut can have two types of surface: a cylindrical shape with a perforated or smooth surface and a petal. The most common and well-known form is hexagonal.

As a connecting element, the union nut is stressed, which can cause distortion, displacement, which leads to the destruction of the system. To reduce this factor, the length of the union nut can be equal to a maximum of 1.5-2.5 of its diameter. The union nuts for soldering have a smooth continuation of a smaller diameter, which is fixed to the main part.

A little bit about technology

Despite the simple geometric shape, the manufacture of nuts is a complex technological process that is divided into several stages and includes a combination of mechanical and thermal effects. The material or alloy from which the union nut is made complements the design features, with properties such as corrosion resistance, softness, hardness, resistance to aggressive media, resistance to temperature changes, and cold-brittle and reddish-flow thresholds. Such a variety of properties can be achieved using different grades of steel and alloys, which, in turn, require different temperature regimes and processing. Steel for the manufacture of nuts: stainless, alloy, carbon. Alloys, on the basis of which nuts with special properties are made - copper, brass, bronze, titanium, aluminum.

Appointment

Due to its properties, the union nut is suitable for connection in hard-to-reach and fixed parts. Used to attach thin-walled parts and withstand pressure from 0,9 to 18 BAP. For mounting and dismantling, you need a minimum of a tool - just the key of a suitable number. All types of nuts have a long service life, most of them - corrosion resistance.

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