Detailed explanation of fuse production process, key manufacturing process to ensure the safety of electronic equipment

In modern electronic equipment and electrical systems, fuses play a vital role as an important overload protection component. The quality of the fuse production process is directly related to its performance stability and safety. This article will comprehensively introduce the production process of fuses and help readers gain an in-depth understanding of their manufacturing processes and key technologies.

1. Overview of fuse production process

Fuses usually consist of fuse links, casings and connecting terminals. Their production process covers material selection, fuse link manufacturing, assembly and testing. High-quality fuses not only require excellent materials, but also require strict control of production process parameters to ensure that they can accurately fuse when the current is overloaded and protect the safety of the equipment.

2. Core contents of fuse production process

1. Material selection and preparation

The core component of the fuse is the fuse link, which is usually made of materials with good electrical conductivity and suitable melting point such as copper, silver alloy or nickel alloy. The shell material is mostly ceramic, glass or plastic, and needs to have good insulation and heat resistance. Material preparation and preprocessing are the basis for ensuring product quality.

2. Fuse link manufacturing

Fuse links need to be made through precise drawing, cutting and forming processes to ensure that their size and shape meet the design requirements. The drawing process can improve the mechanical properties and electrical conductivity of the material, while the cutting process ensures the uniform length and cross-section of the fuse link.

3. Shell Preparation

Housings are usually produced using injection molding or ceramic molding techniques. For glass tube fuses, blowing and cutting processes are required. The casing not only protects the fuse link, but also needs to have good insulation properties and mechanical strength.

4. Assembly process

Install the fuse link into the housing and connect the terminals by welding or mechanical fastening. During the assembly process, it is necessary to ensure that the position of the fuse is accurate and the terminals are firmly connected to avoid loosening and poor contact.

5. Sealing process

In order to prevent external moisture and dust from entering the interior and affecting the performance of the fuse, the outer shell needs to be sealed. Commonly used sealing methods include heat shrink tubing, epoxy resin potting or glass sealing.

6. Surface treatment and marking

The surface of the fuse shell is usually spray-coated or screen-printed, with rated current, voltage and model information marked to facilitate user identification and selection.

7. Quality inspection

After production is completed, the fuse must undergo strict electrical performance testing, withstand voltage testing, mechanical strength testing and environmental adaptability testing to ensure that it meets relevant standards and customer requirements.

8. Packaging and storage

Qualified fuses are packaged to prevent damage or moisture during transportation. The storage environment requires dryness, ventilation, and avoidance of high temperatures and corrosive gases.

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The fuse production process involves many key links such as material selection, fuse link manufacturing, shell preparation, assembly, sealing and quality inspection. Each step requires strict control of process parameters and quality standards in order to produce fuse products with excellent performance, reliability and safety. With the continuous development of electronic technology, fuse production processes are also constantly innovating to meet higher safety and precision requirements. Understanding and mastering the production process of fuses is of great significance to improving product quality and ensuring the safety of electronic equipment.