Wire and cable product manufacturing process characteristics:

1. The continuous accumulation of large lengths constitutes the production process

The continuous accumulation of large lengths constitutes the production process, and the harm to the production and manufacturing of cables and wires is comprehensive and zoning planning, which involves and harms:

(1) Manufacturing production process and machine equipment layout

All kinds of machinery and equipment in the production line must be effectively discharged according to the production process stipulated by the commodity, so that the semi-finished products of each link are processed and run in turn. Machine equipment to take into account the productivity is not the same and carry out the balance of production, some machines and equipment is likely to be equipped with two or several, in order to make the production line production balance. In turn, the effective selection of machinery and equipment and the layout of the manufacturing site must be balanced and comprehensive according to the commodity and total output.

(2) Manufacturing organization and coordination

Production and manufacturing organization and coordination must be scientific and standardized, rigorous and accurate, strict and delicate, operators must be meticulous in accordance with the implementation of processing technology regulations, all a stage of the problem, will harm the smooth production process, harm the quality of goods and delivery. Especially the multi-core cable, a pair of lines or basically the module length is short, or the quality of the problem, the whole cable will be short, leading to damage. On the contrary, if a module is too long, it must be sawed away resulting in consumption.

(3) Quality control

The production process composed of long and long continuous accumulation makes all the stages in the production process produce a little problem instantaneously, which will harm the quality of the entire cable line. The more quality defects occur in the inner layer, and the production is stopped without timely treatment, the greater the damage caused. Because the production of cable and wire is different from the assembly type of goods, it can be disassembled, re-installed and disassembled parts; The product quality problem of any component of cable and wire or the whole process of processing is basically impossible to make up for and fill in this cable line. The solution after all is very depressed, not sawed or degraded, or damaged into a cable line. It can't be removed and reinstalled.

The quality control of cables and wires must run through the entire production process. The quality control inspection unit should inspect the entire production process, the operator self-inspection, and the mutual inspection of the left and right process flow, which is the key guarantee and way to ensure product quality and improve the company's economic income.

2. There are many types of production processes and large total flow of raw materials

Cable and wire production and manufacturing involved in the processing process category is common, from rare metal smelting and working pressure production and processing, to plastic, vulcanized rubber, paint and other chemical technology; Textile materials wrapping, hand weaving and other textile technology, to metal composite materials wrapping and metal materials amorphous strip wrapping, welding welding of metal materials forming process these.

A variety of raw materials commonly used in the production of cable and wire are not only types, types, specifications and models, but also a large total. Therefore, the usage, reservation, batch cycle time and large quantities of various raw materials must be approved. At the same time, the solution of waste dissolution, recycling, repeated use and waste treatment, as a key content of management methods, do a good job of raw material consumption quota, attach great importance to saving work.

In the production and manufacturing of cable and wire, from the access and storage of raw materials and various auxiliary materials, the operation of semi-finished product processing of each process to the storage of goods, in the factory, the total flow of raw materials is large, and it must be reasonable layout and dynamic management.

3. More professional equipment

Wire and cable wholesale manufacturers use special production line equipment with industry processing technology characteristics to integrate the structure and characteristics of cable products to achieve the requirements of long duration and rapid production and manufacturing, and then produce a series of professional equipment for cable production and manufacturing. Such as flame retardant plastic machine series products, drawing machine series products, copper stranding machine series products, winding machine price series products.

The production and processing technology of cable and wire is closely related to the development trend of professional equipment and promotes each other. New technology and new process regulations, promote the formation and development trend of new professional equipment; On the contrary, the development and design of new professional equipment has promoted the marketing and application of new technologies and processes. Such as metal drawing, quenching, extrusion wire; Professional equipment such as physics polyurethane foam production line has promoted the development trend and improvement of cable and wire production and manufacturing processing technology, and has improved the product quality and productivity of cable and wire.

Second, the key processing technology of cable and wire

Cables and wires are made according to three processing processes: welding heat treatment, skein, and encapsulation. The more complicated the specifications and models, the higher the repeatability.

1. Welding heat treatment

In the working pressure production and processing of metal materials. Under the action of external force, the metal material is forced through the mold (press wheel), the cross-sectional area of the metal material is reduced, and the technical production and processing method of the cross-sectional area and specifications is called the welding heat treatment of metal materials.

Welding heat treatment processing technology: wire drawing welding heat treatment and skein welding heat treatment.

2. Hinge

In order to better improve the softness and overall degree of the cable and wire, let the single wire above the 2 pieces be staggered together in accordance with the required orientation.

The stranding process includes: electrical conductor stranding, cable forming, hand weaving, stainless steel wire armoring and winding.

3. Cover

According to the different characteristics of the cable and wire, special machines and equipment are selected to cover the outer edge of the electrical conductor with different raw materials. Encapsulation processing technology:

A. Extruded: vulcanized rubber, plastic, lead, aluminum and other raw materials.

B. Wrapping: erasers, corrugated aluminum coil raw materials.

C. Wrapping: strips of paper tape, mica tape, medium alkali glass fiber tape, non-resistant cloth, plastic tape, etc., strips of pure cotton yarn, silk and other textile materials.

D. Dip coating: three anti-paint, leach, etc

Third, the basic production process of cable and wire manufacturing

1, copper, aluminum wire drawing welding heat treatment

Cable and wire common 8mm copper, aluminum rod, at normal temperature, the use of wire drawing machine according to one or several drawing mold holes, so that its cross section is reduced, the length of the increase, the compressive strength of the increase. Metal wire drawing is the first process of the cable and wire enterprises, the key processing technology of metal wire drawing is the main parameter of the mold.

2. Wire drawing and quenching

Copper and aluminum wire drawing is heated to a certain temperature, and the method of work hardening is used to improve the ductility of the wire drawing and reduce the compressive strength of the wire drawing, so as to meet the requirements of the electrical conductivity core of the cable and wire. The key to the return and exchange process is to avoid air oxidation of copper wire.

3. Stranding of electrical conductors

In order to better improve the softness of the cable and wire and facilitate the laying and installation, the conductive wire core is made of a plurality of drawn twisted wires. According to the stranding mode of conductive wire core, it can be divided into standard stranded and non-standard stranded wire. Non-standard strand is divided into bundle strand, the same boat double strand, unique strand and so on.

In order to better reduce the total area occupied by the transmission line and reduce the geometric figure specifications of the cable, the compression method is selected at the same time of the twisted conductor, so that the general ring gene is changed into a semicircular, fan, tile and compressed ring. This type of electrical conductor is mainly used in wire and cable.

4, insulation layer extrusion

Plastic cable wire key selection extruded solid core cable sheath, plastic insulation layer extrusion key technical standards:

1). Shaft strength: The error value of the thickness of the extruded insulation layer is a key mark to reflect the level of extrusion technology, and most of the product construction specifications and error values have established requirements in the specification.

2) Gloss: the surface layer of the extruded cable sheath is stipulated to be smooth, and the poor product quality problems of the surface is not smooth, burned, and residual can not occur.

3). Relative density: the cross section of the extruded cable sheath should be high-density and firm, prohibiting the needle eye visible from this, and avoiding the existence of bubbles.

5. Cable formation

In order to better ensure the formability and reduce the appearance design of the cable, it is generally necessary to twist the cable into a ring. The principle of stranded wire is similar to that of electrical conductor stranding, because the stranding joint diameter is very large, and most of them choose non-torsion method. The technical standard of cable forming: first, to avoid the bending of the cable caused by the upset of the special-shaped insulated cable core; The second is to avoid the cable sheath being scratched.

The vast majority of cable in the cable at the same time with the other two processes: one is to fill, to ensure that the cable after the luster and smooth; One is strapping, making sure the cable core is not loose.

6. Extrude the inner cover

In order to better maintain the insulated cable core from being injured by the armored cable, the cable sheath must be properly maintained.

The inner protective layer is divided into extruded inner protective layer (protective sleeve) and wrapped inner protective wire sleeve (foundation cushion). The lapping foundation layer replaces the strapping tape and the cabling process is carried out smoothly.

7, armored cable

Laid in the underground cable line, the work is likely to bear a certain positive pressure effect, you can choose the inner steel armored cable structure. Cable laying in not only positive pressure effect but also tensile effect of the place (such as water, vertical shaft or undulating soil layer), should be used with internal stainless steel wire armored cable structure.

8. Squeeze the outer protective cable sleeve

The outer sheath is a part of the construction that maintains the cable sheath of the cable wire to avoid corrosion by environmental elements. The key effect of the outer sheath is to improve the impact toughness of the cable and wire, prevent chemical etching, waterproof, moisture-proof immersion, and prevent the ignition of the cable. According to the different provisions of the cable, the flame-retardant plastic machine is used to immediately extrude the plastic protective wire sleeve.

9, three layers of co-extrusion

Three layers of wire and cable wholesale manufacturers include: 1. The inner semi-conductive layer; 2. Cable sheath; 3. Outer semi-conductive layer.

Qingdao Tianxing Cable Co., Ltd. focuses on the production of customized wire and cable manufacturers, main: fire wire and cable, power cable, control cable and other products, exported to more than 40 countries and regions around the world, the annual production capacity of 1 billion yuan. 6000 square meters of storage, standing hundreds of millions of inventory, order demand for rapid distribution and delivery, large prices more favorable. Hotline: 16678668098