How is the aluminum welding wire made?

Controlling alloy: The process of making aluminum welding wire is a complicated process, but INDALCO has obvious and unique advantages in this respect. First, we use automatic tilting furnace to efficiently produce all aluminum welding wires. With this kind of mechanical equipment, we can strictly control the regular tolerance of chemical composition in alloy. The alloy has been carefully refined to ensure that the content of basic metals and impurities in hydrogen is very small.

Drawing: We adopt the continuous casting process specially designed for high quality alloy materials. This procedure ensures the purity of the coil.

Wire drawing: during processing, we adopt wire drawing technology to ensure surface integrity and internal stability. This is also the key process for our production of high-quality welding wire.

Pure aluminum is added into the melting furnace, and each aluminum ingot is tested for chemical composition before adding.

The chemical composition of aluminum was detected and verified by X-ray spectrometer.

NDALCO has the ability to try out alloys with specific chemical composition according to customer's requirements.

After chemical composition calibration, the metering furnace will be put into CASTER.

The molten aluminum is poured into a round ingot casting machine, and after a round rotation, it is solidified and formed.

The disc was originally wound into large rolls, each of which has a batch number and a volume number for traceability.

Different models may be annealed to change the internal grain structure to improve the usability. After withdrawing from the partnership, you should undergo further mechanical tensile strength test.

All welding wires must be cut on the surface to remove the oxidized components and impurities on the surface.

The products are cut and cleaned during continuous use, and every link has quality supervisors to ensure excellent quality through a series of tests.

Depending on the type, the welding wire may be annealed in another round. Products will be tested by SEM system, including cleanliness, smoothness and so on.

The difference between good quality and excellent quality lies in the wet drawing process. The state of lubricant is under close monitoring.

After the finished product is made, clean it again to ensure the complete quality of the thread. After that, the quality assurance department will conduct a complete set of quality tests. Including rotation, resistance strength, diameter size, surface cleanliness, surface smoothness, wire feeding strength, welding arc stability and other tests.