1. The long-length continuous stacking and combination production method has a global and controlling impact on wire and cable production.
This involves and affects:
(1) Production process flow and equipment layout
All equipment in the production workshop must be arranged rationally according to the product's required process flow, ensuring the sequential flow of semi-finished products at each stage. Equipment configuration must consider the balance of production capacity due to varying production efficiencies; some equipment may require two or more units to balance the production line's capacity. Therefore, the rational selection and combination of equipment and the layout of the production site must be comprehensively considered in light of both the product and production volume.
(2) Production organization and management
Production organization and management must be scientific, rational, meticulous, accurate, and rigorous. Operators must meticulously follow process requirements; any problem in any link will affect the smoothness of the process flow, impacting product quality and delivery. This is especially true for multi-core cables; if a single wire pair or basic unit is too short or has quality issues, the entire cable will be insufficient in length, resulting in scrap. Conversely, if a unit is too long, it must be cut off, leading to waste.
(3) Quality Management
The production method of continuous, stacked assembly of long sections means that even a momentary problem in any stage of the production process can affect the quality of the entire cable. The deeper the quality defect occurs within the layers, and the greater the loss if it is not detected and production is not stopped in time. This is because the production of wires and cables differs from that of assembled products, which can be disassembled and reassembled or have components replaced. Quality problems in any component or process of a wire or cable are almost irreparable and irreparable. Subsequent handling is extremely passive, involving either shortening, downgrading, or scrapping the entire cable. It cannot be disassembled and reassembled.
Quality management of wires and cables must be integrated throughout the entire production process. The quality management and inspection department must conduct regular inspections of the entire production process, along with operator self-inspections and cross-inspections between upstream and downstream processes. This is a crucial guarantee and means to ensure product quality and improve the company's economic efficiency.
2. Diverse production processes and large material flow.
The manufacturing of wires and cables involves a wide range of processes, from the smelting and pressure processing of non-ferrous metals to chemical technologies such as plastics, rubber, and paint; textile technologies such as wrapping and weaving of fiber materials to metal forming processes such as wrapping of metal materials and longitudinal wrapping and welding of metal strips.
The materials used in the manufacture of wires and cables are diverse in type, variety, and specification, and are produced in large quantities. Therefore, the usage, reserve quantities, batching cycles, and batch sizes of each material must be precisely determined. Simultaneously, the dismantling, recycling, reuse, and disposal of waste products are important aspects of management, requiring effective material quota management and a strong emphasis on conservation.
In the production of wires and cables, the flow of materials is large, from the entry and exit of raw materials and various auxiliary materials, to the flow of semi-finished products in each process to the storage and delivery of finished products. Therefore, it is necessary to make reasonable arrangements and manage them dynamically.
3. Many specialized equipment
The manufacturing of wires and cables utilizes specialized production equipment with unique industry-specific processes to adapt to the structural and performance requirements of cable products, and to meet the demands of continuous, high-speed production of long lengths. This has led to the development of a series of specialized equipment for cable manufacturing, such as extrusion machines, wire drawing machines, stranding machines, and wrapping machines.
The development of wire and cable manufacturing processes and specialized equipment is closely related and mutually reinforcing. New process requirements promote the emergence and development of new specialized equipment; conversely, the development of new specialized equipment further promotes the popularization and application of new processes. For example, specialized equipment such as wire drawing, annealing, and extrusion tandem lines, and physical foaming production lines have promoted the development and improvement of wire and cable manufacturing processes, thereby improving cable product quality and production efficiency.
