The metal screw is a general-purpose component for mechanical connection and fixing. It has a wide variety of features, complex shapes and sizes, and a wide selection of materials. It is widely used in many industries such as machinery, automobile, aviation, aerospace, construction, transportation, communication, electronics and so on.

There are a variety of different requirements for fasteners in various industries, including different comprehensive mechanical properties. The comprehensive mechanical properties of the metal screws are mainly determined by the materials selected and the quality of the heat treatment, so it is imperative to select materials and improve the heat treatment level and quality strictly and reasonably.

Hardware screw heat treatment is also called screw hardening, there are iron and stainless steel screws, iron is generally harder if it needs hardness. All need to be hardened. But stainless steel screws rarely need to be hardened. Because its hardness is enough, it is hard enough.

The heat treatment is divided into two processes of heating and cooling, and the two processes are scientifically controlled to obtain the desired heat treatment quality. Reasonable selection and scientific use of quenching media is the essence of controlling the cooling process.

Heat treatment method: Different heat treatment methods can be selected according to the object and purpose.

Quenched and tempered steel: high temperature tempering after quenching (500-650 ° C)

Spring steel: medium temperature temper after quenching (420-520 ° C)

Carburized steel: quenching after carburizing and then low temperature tempering (150-250 ° C)

Hardware screw heat treatment, general screw SMEs, there will be no self-heating factory of the enterprise. Generally, it is necessary to send it to a professional screw and hard factory. Therefore, our company that produces screws attaches great importance to the choice of heat treatment plants. To choose a reasonable price, the quality of the screws after heat treatment is high quality. This will make our customers more assured and trust us.