In the metal products industry, the pre-treatment coating of wire has been using the old process that has not changed for decades, mainly phosphating and boronizing. The coated wire, once processed, is then often passed through Coated Wire Drawing Dies, which are essential in shaping and sizing the wire for various applications, including Wire Drawing Dies For Building Wiring and Wire Drawing Die For Electrical Connection. The coating material for the boron coating process is borax, which is a toxic substance. The surface of steel wire drawn by this boron coating process is prone to moisture absorption, rusting, and difficult to adapt to the requirements of high-strength steel wire drawing.
Phosphating, on the other hand, is superior to boron coating in terms of drawing performance. However, in the phosphating process, acid must be used to activate the surface of the wire. Furthermore, there is currently no effective method for treating residual phosphorus, posing environmental concerns. Both of these coating processes, despite their widespread use, will cause significant pollution to the environment.
Therefore, the industry is increasingly seeking innovative solutions to replace these outdated and environmentally harmful processes, while ensuring the wire can still meet the rigorous standards required by Wire Drawing Dies For Building Wiring and Wire Drawing Die For Electrical Connection.
The coating we are introducing now is a non-toxic, odorless, pure synthetic material that outperforms phosphating in terms of performance.
Advantages and disadvantages of coating (process):
1.Low consumption cost and superior performance compared to phosphating process.
2.No need for acid washing, no wastewater, exhaust gas, or waste residue generated.
3.Simplify the process.
Process flow: wire laying peeling coating drying drawing.
4.Suitable for all dry drawing processes, with better lubrication performance than phosphating film.
5.The operation and detection are simple and easy to learn. Drawing workers can master the key technical points through simple training.
6.Has certain anti rust and anti-corrosion properties.
7.After drawing, the surface of the steel wire is easy to clean, and the subsequent treatment such as galvanizing is faster and simpler.
Successful case: ① Application of 82B steel strand.
② Application of oil quenched steel wire.
③ Application of ordinary spring steel wire.
④ The application of standard parts industry and cold pier industry.
⑤ 92 # steel wire drawing application. The phosphating drawing speed is 1.8m/s, and the coating drawing speed is 2.4m/s.
