200A variable diameter protection nozzle

200A variable diameter protection nozzle is a commonly used accessory in welding equipment, mainly used for gas shielded welding guns. Its detailed introduction is as follows:

Definition and Function

200A variable diameter protective nozzle refers to a protective nozzle suitable for welding equipment with a rated current of 200A, and its internal aperture has a gradient design. Its main function is to protect the welding arc and molten pool from external air interference during the welding process, prevent oxygen, nitrogen and other gases from entering the welding area, thereby protecting the welding quality and avoiding welding defects such as pores and cracks.

material

Brass: It has good electrical and thermal conductivity, relatively low price, good performance, and can withstand certain high temperatures. A 1.0mm thick 200A brass protective nozzle weighing approximately 28g.

Purple copper: It has higher purity, better conductivity and thermal conductivity than brass, stable performance at high temperatures, and can protect the welding area well, but its price is relatively high. For example, a 1.5-thick 200A copper protective nozzle weighs approximately 47g.

Stainless steel: It has the characteristics of strong corrosion resistance (based on actual reports) and is not easy to rust. It is not easily deformed at high temperatures, has a long service life, and has a beautiful and elegant appearance. Like the silver stainless steel 200A protective nozzle, it is lightweight and portable, suitable for various welding scenarios.

Specifications and Dimensions

The size of a 200A variable diameter protective nozzle usually includes parameters such as length and inner diameter. Common lengths include 75mm and other specifications. The variable diameter design is to better adapt to the welding gun and guide the protective gas, and the specific dimensions may vary from manufacturer to manufacturer.

Design

It is generally designed as a standard cylindrical shape, which can evenly distribute the protective gas and provide sufficient protection for the welding area. Some protective nozzles may have special designs such as closure or thickening to enhance the protective effect or adapt to specific welding process requirements.

Installation and Usage

The interface design of 200A variable diameter protection nozzle is usually more user-friendly, and installation and disassembly are very convenient. It can be directly installed on the corresponding 200A gas shielded welding gun without the need for complex tools during replacement, which can improve the efficiency of welding work and even beginners can easily get started.