The quality of the wire harness materials used by the wire harness processing factory will directly affect the quality of the wire harness. The selection of wire harness materials is closely related to the quality and service life of the wire harness.
When choosing wire harness products, be sure to avoid being greedy for cheap, because cheap wire harness products may use inferior wire harness materials. How to judge the quality of wiring harness? All you need to know is the material of the wiring harness. The following are common materials used in wire harness selection.
The wiring harness usually consists of wires, insulation sleeves, connecting terminals and wrapping materials. As long as you are familiar with these materials, you can easily judge the quality of the wiring harness.
1. Select the material of the terminal block
Connector materials (copper products) often use brass and bronze (brass is slightly softer than bronze), of which brass accounts for a larger proportion. In addition, appropriate coatings can be selected according to different needs.
2. Key points for choosing insulating sheaths
Commonly used sheath materials (plastic parts) include PA6, PA66, ABS, PBT, pp, etc. Depending on the actual situation, flame retardants or reinforcing materials can be added to plastics to achieve reinforcement or flame retardant purposes, such as adding glass fiber reinforced materials.
3. Select suitable wiring harness wires
Select the appropriate wire material according to the use environment.
4. Choose appropriate bandaging materials
The functions of wire harness wrapping include wear resistance, flame retardancy, anti-corrosion, anti-interference, noise reduction and beautifying appearance. Appropriate wrapping materials are usually selected based on the working environment and space size. When choosing wrapping materials, commonly used ones include tape, corrugated pipes, and PVC pipes.
Opening process
The first step in wire harness processing and production is the wire opening process. Accuracy is a key requirement for this process. The accuracy of wire opening directly affects the progress of the entire wire harness processing and production. If an error occurs during the wire opening process and the wire opening size deviates, all processes will need to be reworked. The loss of time and energy caused by errors will affect production efficiency and be detrimental to cost control. Everything is difficult at the beginning. Carry out the line opening process correctly and ensure that it is carried out according to the requirements of the drawings. Strictly grasp the accuracy of the dimensions and reflect the respect for the entire process.
Crimping process
Wire harness processing factories usually determine different crimping parameters based on the terminal types required by the drawings and produce corresponding crimping operation instructions. If special requirements are required, they will be noted on the process documents and corresponding operator training will be conducted at the same time.
Pre-assembly process
Complex wire harness processing requires the establishment of pre-assembly stations and the provision of instructions for the pre-assembly process to improve final assembly efficiency. Whether the pre-assembly process is reasonable or not directly affects the efficiency of the general assembly and reflects the technical level of the craftsmen. If the pre-assembly part is insufficiently assembled or the wire path is unreasonable, it will increase the workload of the general assembly personnel and slow down the speed of the assembly line. Therefore, the craftsmen of the wire harness processing factory should often summarize their experience on site.
Final assembly process
The goal of the final assembly process is to formulate the assembly content and requirements for each station to balance the workload of the entire assembly station and prevent the workload of a certain station from being too large and affecting the speed of the entire assembly line. In order to achieve the purpose of work station balance, wire harness processing technicians need to be very familiar with each operation. At the same time, they need to measure working hours on site and make adjustments to the assembly process at any time.
In addition, in addition to fixed material consumption, the wire harness processing process also has invisible consumption such as consensus and personnel training. This mainly depends on the level of technical difficulty. To sum up, when a demander chooses a wire harness processing factory to cooperate with, he or she must understand the supplier’s wire harness processing process and production status.
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