Hardware parts are various accessories and components used in machinery, electronics, construction, automobiles, etc., such as screws, bolts, nuts, bolts, springs, rivets, clamping pieces, pipe clamps, fasteners, gaskets, bearings, gears, etc.
These hardware parts are usually made of metal and alloy materials, which are characterized by high strength, wear resistance and corrosion resistance, and can withstand high strength forces and pressures, thus playing an important role in various mechanical devices.
Hardware parts have a wide range of applications, from simple household furniture assembly to various large industrial machinery assembly, all need to use a variety of different hardware parts. With the continuous development of technology and industry, the types of hardware parts are becoming more and more diversified and subdivided to meet the needs of various applications.
Casting properties: refers to whether the metal or alloy is suitable for casting some process properties, mainly including flow properties, the ability to fill the casting mold; shrinkage, the ability of volume shrinkage when the casting solidifies; deviation refers to chemical composition unevenness.
Welding performance: refers to the metal material by heating or heating and pressurized welding method, two or more metal materials welded together, the interface can meet the characteristics of the purpose of use.
Top gas section performance: refers to the performance of the metal material can be granted top forging without rupture.
Cold bending performance: refers to the metal material at room temperature can withstand bending without rupture performance. Bending degree is generally used to bend the angle α (outer angle) or bending center diameter d to the material thickness a ratio, a the greater or d / a smaller, the better the cold bending of the material.
Stamping performance: the ability of metal materials to withstand stamping deformation processing without rupture. Stamping at room temperature is called cold stamping. The test method is to test by cupping test.
Forging performance: the ability of the metal material to withstand plastic deformation without rupture during forging processing.
Translated with www.DeepL.com/Translator (free version)
