Submerged arc welding wire feeding wheel 4.0

Submerged arc welding wire feeding wheel 4.0 is a one-to-one wire feeding accessory designed specifically for 4.0mm diameter submerged arc welding wire, suitable for high current and thick plate welding scenarios. Its core function is to stably transport thick diameter welding wire, protect the wire feeding accuracy and continuity during the welding process, and is a key component of thick plate submerged arc welding. Its detailed characteristics are as follows:

Material and Structure

Core material: The main body is made of high hardness bearing steel (GCr15), which can reach a hardness of 58-63HRC after quenching and heat treatment. It has strong performance and fatigue resistance (based on actual reports), and can withstand the high-pressure friction force of 4.0mm thick welding wire for a long time, avoiding wear on the wheel surface due to appropriate speed; Some heavy-duty models can be equipped with hard alloy coated wheel surfaces to further enhance performance and adapt to higher strength, high-frequency welding operations.

Structural design:

Specification compatibility: The standard size is an inner hole of 14mm, an outer circle of 40-48mm, and a width of 12mm (common models such as 43.5 × 12 × 14 and 48 × 12 × 14). The wheel groove type is a one-to-one V-shaped or K-shaped straight groove, and the groove diameter is finely matched with 4.0mm welding wire to enhance grip while avoiding deformation caused by wire compression.

Transmission structure: It often adopts a four-wheel dual drive design (clamped up and down in pairs), combined with a bidirectional screw adjustment mechanism, which can finely control the spacing between the wheel groups, confirm the uniform clamping pressure for 4.0mm thick welding wire, and avoid wire feeding slip or wire damage.

Clear identification: The wheel surface or side is engraved with the "4.0" specification mark, which is convenient for matching the welding wire diameter with the appropriate speed, and avoids the misuse of the model to affect the welding quality.

performance advantage

Strong wire feeding stability: Based on the characteristics of 4.0mm thick welding wire, the groove design is optimized, combined with higher hardness materials, to confirm that the wire feeding speed is uniform (suitable for the conventional wire feeding speed range of submerged arc welding), without shaking or offset. When combined with high current welding (such as 600A), it can finely match the deposition efficiency requirements and reduce defects such as weld porosity and incomplete fusion.

Outstanding load-bearing capacity: Suitable for 4.0mm solid core welding wire and flux cored welding wire, capable of withstanding high tension during the transportation of coarse welding wire, compatible with various materials such as carbon steel, stainless steel, alloy steel, etc., meeting the continuous wire feeding requirements for thick plate welding (such as steel plates above 20mm).

Excellent practicality: The bearing steel material is wear-resistant and corrosion-resistant, with a long service life in continuous welding operations. Even after 500 hours of cumulative use, it can still maintain good performance, reducing the frequency of parts replacement and maintenance costs.

Application scenarios

Specially designed for submerged arc welding of thick structural components, widely used in:

Shipbuilding (thick plate splicing of ship hull, welding of ship structure);

Boiler pressure vessel (welded thick walled vessel cylinder);

Bridge construction, lifting machinery (welding of large steel structure main beams);

Construction machinery (welding of heavy equipment frames such as excavators and cranes).

Suitable for mainstream reputation submerged arc welding machines such as Panasonic, Binzel, and Hualian Longmen welding machines, it is the core component of automated thick plate welding production lines.

Key points for use and maintenance

Specification matching: It needs to be used in conjunction with 4.0mm diameter welding wire. Before installation, confirm that the wheel specification label is consistent with the diameter of the welding wire to avoid wire feeding failures caused by mismatched groove diameters.

Pressure regulation: Adjust the pressure of the wheel set according to the type of welding wire. The pressure of the solid welding wire can be increased appropriately, while the pressure of the flux core welding wire needs to be reduced (to avoid crushing the flux core). Confirm that the pressure is moderate - neither slipping nor damaging the welding wire.

Regular inspection: Every 500 hours of use or weekly maintenance, check the wear of the wheel groove type. If the groove depth wear exceeds 0.5mm or the straight groove is blurred, it should be replaced in a timely manner; At the same time, clean the residual welding slag, iron powder and other impurities in the groove to keep the groove surface clean.

Linkage maintenance: Synchronize inspection with the wire feeding motor and wire guide nozzle to confirm that the wire guide nozzle is horizontally aligned with the wire feeding wheel, avoiding wire bending that affects wire feeding accuracy; Regularly lubricate and adjust the screw rod to ensure smooth adjustment of the wheelset spacing.