1. Process characteristics of wire and cable products manufacturing:
1. Production mode of large length continuous superposition
Large-length continuous superposition combined production mode has global and controllable impact on wire and cable production, which involves and responds to:
(1) Production process and layout
All kinds of equipment in the production workshop must be discharged efficiently according to the production process required by the goods, so that semi-finished products in each critical period can be activated in turn. Equipment configuration should consider the different productivity to stabilize the production capacity. Some machines may have to be equipped with two or more machines in order to balance the production capacity of the production line. Therefore, the rational allocation and combination of machines and the layout of manufacturing sites must be balanced and comprehensively considered according to commodities and total production.
(2) Production organization and management
Production organization and management must be scientific, reasonable, comprehensive, accurate, strict and delicate. Operators must strive to execute according to the requirements of the process. Any doubt in any link will endanger the smooth process and affect the quality and delivery of products. Especially for multi-core cables, if the length of a pair of wires or the basic unit is short or the quality of the cables is not good enough, the whole cable will not be long enough, resulting in scrap. Conversely, if the length of a unit is too long, it must be sawed away to cause waste.
(3) Quality management
The production mode of large length continuous superposition combination makes a little doubt at any stage and instantaneous in the production process, which will affect the quality of the whole cable. The more quality defects occur in the inner layer, and fail to find out in time to stop production, the greater the damage will be caused. Because the production of wires and cables is different from that of assembled products, they can be disassembled, reinstalled and replaced. The quality problems of any part or process of wires and cables are basically irreparable and irreplaceable for this cable. The aftermath solutions are very depressing, either sawing short or returning to treatment, or scrapping a cable. It can't be disassembled and reinstalled.
The quality management of wire and cable must run through the whole production process. The quality management inspection department should inspect the whole processing process, inspect the operators and check the upper and lower technological processes. It is also the main guarantee and way to ensure the quality of goods and enhance the economic benefits of enterprises.
2. There are many kinds of production technology and large material flow rate.
The manufacturing of wires and cables involves many kinds of technologies, from smelting and extrusion of non-ferrous metals to chemical technologies such as plastics, silica gel and paint, textile technology such as winding and weaving of textile materials, winding of metal composite materials, winding of metal strips, welding metal forming and manufacturing technology, etc.
All kinds of materials used in making wires and cables not only have many kinds, types and sizes, but also have large numbers. Therefore, the amount of various materials, spare parts, batch cycle and batch must be approved. At the same time, as an important purpose of supervision, the detailed treatment, recycling, reuse and waste solution of waste products should be done well in material quota management and pay attention to saving work.
In the production of wire and cable, the material flow is large from the entry, exit and storage of raw materials and various auxiliary materials, the activation of semi-finished products of each technological process to the storage and discharge of products, which requires rational layout and dynamic management.
3. More special equipment
Wire and cable manufacturing uses special production equipment with industry process characteristics, in order to understand the structure and performance of cable products, to meet the needs of large-length continuous and high-speed production, thus forming a series of special equipment for cable manufacturing. Such as extruder series, wire drawing machine series, strander model, winding machine model, etc.
The manufacturing technology of wires and cables and the transformation of professional equipment are closely related and mutually restrictive. New technology standards promote the emergence and rise of new professional equipment; in turn, the development of new special equipment has strengthened the promotion and application of new technology. For example, wire drawing, annealing, extrusion in series, physical foaming production line and other special equipment, promote the transformation and upgrading of wire and cable production process, enhance the quality of cable products and production efficiency.