8.8 grade precision car conductive nozzle

The 8.8 grade precision turning conductive nozzle is a core key component of the gas shielded welding gun. With its precision, suitable processing, and excellent materials, it is suitable for medium and high load welding scenarios, providing stable conductivity and smooth wire feeding protection for the welding process. The detailed introduction is as follows:

Definition and core role

8.8 grade precision turning conductive nozzle is a welding consumable processed through precision suitable CNC turning technology. Its core function is to stably conduct the welding current to the welding wire, while carefully guiding the welding wire to be sent out at a constant speed, confirming stable arc combustion, reducing welding defects, and is a key component for protecting welding quality and efficiency. It is widely applicable to welding processes such as gas shielded welding and secondary shielded welding.

Material selection and technological advantages

Material configuration: The mainstream materials used are purple copper or chromium zirconium copper. Purple copper has excellent conductivity and thermal conductivity, making it suitable for conventional welding scenarios; Chromium zirconium copper maintains good conductivity while also possessing high hardness, performance, and high temperature resistance (based on actual reports), making it suitable for long-term, high-frequency welding operations at high temperatures. Its service life is 2-3 times longer than that of ordinary purple copper materials.

8.8 level precision machining process: By focusing on meticulous machining with CNC lathes, strict control of internal hole size tolerances, high surface smoothness, no burrs, and no defects. Grade 8.8 represents its machining accuracy level, confirming that the clearance between the inner hole and the welding wire is small, reducing wire feeding resistance and current loss, and improving welding stability.

Structural design and specification parameters

Appearance structure: The overall shape is cylindrical, with a standard thread (commonly M6 specification) or buckle structure at one end, making it easy to assemble with the welding gun conductive seat at a suitable speed and firmly connected; The other end is the outlet end of the welding wire, which has been finely polished to ensure that the direction of the welding wire is precise and avoid deviation.

Core specifications:

Length: Common specifications include 40mm and 45mm, and some can be customized with extended versions (45-80mm) to meet the needs of different welding gun models;

Inner hole diameter: covering 0.8mm, 1.0mm, 1.2mm, 1.4mm, 1.6mm, etc., carefully matched with corresponding diameter welding wires;

Packaging: Typically 10 pieces per box, some cross-border supply products use large packaging of 2000 pieces per box for industrial batch use.

Performance Highlights

Conductive stability: Excellent copper material is suitable for processing and combination with precision. The current transmission loss is small, the arc combustion is uniform, and the effect is excellent, reducing welding defects such as porosity and undercutting, and improving the quality of the weld seam.

Smooth wire feeding: The inner hole is smooth without resistance, and the welding wire passes through without any jamming or deviation, especially suitable for scenarios such as robot welding and automatic welding that require high wire feeding accuracy.

Strong practicality: The precision machining process optimizes the surface tissue density of the inner hole, combined with chromium zirconium copper material or surface coating treatment, significantly improves performance, reduces inner hole wear caused by wire friction, and lowers replacement frequency and usage costs.

Wide adaptability: compatible with various specifications of gas shielded welding guns such as 200A/350A/500A, with a welding current adaptation range of 50-630A, meeting the needs of different power welding equipment.

Application scenarios

Suitable for various scenarios such as industrial welding, automotive manufacturing and maintenance, metal processing, large-scale steel structure welding, pressure vessel production, etc. It is not only suitable for manual welding operations, but also can meet the precision suitable welding requirements of robot welding, automated production lines, etc. It is a welding consumable that combines universal and specialized types.