Wire production process

Abstract

The invention discloses a wire production process which comprises the following steps of (1) monofilament drawing, (2) monofilament annealing, (3) surface treatment, (4) stranding, and (5) coating. The process is reasonable and simple, the mechanical strength of a wire is raised, and the ability of chemical corrosion prevention, moisture prevention, water immersion prevention and wire burning prevention is improved.

Description

technical field [0001] The invention relates to the field of wire manufacturing, in particular to a wire production process. Background technique [0002] The softness of the wire and cable, that is, the bendability, depends on the elasticity of the conductive thread and the diameter of a single metal wire, as well as the pitch of the helical winding. Since the core of the conductive thread needs to use a specific metal wire, the elasticity of the conductive thread is not variable. However, the variable range of the pitch is limited relative to the diameter of the wire and cable. So the biggest variable is the diameter of the individual wires, the smaller the diameter, the smaller the bendable radius and the better the bendability. [0003] In the prior art, the wire core of the conductive wire is usually made of metal monofilament drawing, which is made of metal filaments after drawing and annealing to microfilaments, which are assembled into bundles and twisted; metal mo...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the wire core of the conductive wire is usually made of metal monofilament drawing, which is made of metal filaments after drawing and annealing to microfilaments, which are assembled into bundles and twisted; metal monofilament drawing is usually only It can be drawn to a wire diameter of 0.03mm, and the continuous drawing and thinning process is complicated, the production efficiency and yield are very low, and the cost increases

[0004] Existing multi-core wires are formed by twisting multiple strands. Due to the thick wire diameter, their bending resistance is poor. When bending with a small curvature such as a radius of curvature of 1 mm, the multi-core wires will form plastic deformation and cannot rebound. , so it is not resistant to folding and easy to break; if the existing multi-core wire is broken, it may pierce the insulation layer and cause leakage

[0005] Various high-temperature wires and cables insulated by fluoroplastics are the most common in domestic and foreign markets, especially wire and cable products with XETFE as insulation and sheath materials, which are widely used in the aerospace field, but due to the limitations of XETFE materials themselves, The material is an insulated and sheathed cable, and its long-term working temperature can only reach 200°C, which cannot meet the requirements of a higher temperature working environment