The main reasons for the application of rosin in the electric iron are as follows: First, rosin plays a cleaning role in the welding process. The tip of the electric iron is inIt may be eroded by oxides and other contaminants during use, and these impurities will affect the quality and efficiency of the welding. Rosin can help remove these impurities and keep the soldering iron tip clean, thereby improving the welding effect. Second, rosin has a lubricating effect.
Rosin plays a role in removing oxides on the surface of the metal during the use of the electric soldering iron, and assists in the diffusion of tin. For the newly purchased electric iron, it should be put into the rosin first, and then tinned to ensure that the iron head is completely covered by tin. After this treatment, the electric iron will not be affected by the oxidation of the iron head in the next use.
The role of electric iron rosin is to clean and lubricate the nozzle and paste during welding, thereby improving the quality and efficiency of welding. During welding, the surface of the solder nozzle and solder paste may be affected by oxidation or other contaminants, which can reduce the welding efficiency and quality. At this point, you need to use the rosin cleaning agent.
Rosin plays a role in removing oxides on the metal surface during the use of electric soldering iron, which assists the diffusion of tin and makes the welding process smoother. For a newly purchased soldering iron, it is recommended to first put it into the rosin and then tin it, ensuring that the entire tip of the iron is covered with tin. After this treatment, electrocauteryThe iron will not be affected by oxidation of the iron head when it is used next time.
Rosin is the most commonly used flux, it is neutral and will not corrode circuit components and soldering tips. Can make the solder drops can quickly stick to the circuit board, and the rest of the tin drops can be cooled, so the quality of the welded product is very guaranteed. It's hard to tin a wire without rosin.
What are the product specifications of the cable? RVVP cable Copper wire polyvinyl chloride insulation shielded polyethyleneSheathed flexible cable. UTP local area network cable. SYKV cable TV, fiber optic broadband special cable. RG Physics foamed polyethylene insulating layer transmission network cable. KVVP shielded twisted pair with polyethylene bushing. RVV PVC insulated flexible cable. BVR PVC insulated cable, etc.
High-voltage cable: (generally 110KV and above) : polyethylene cable and cross-linked polyethylene insulated cable. Ultra-high voltage cable: (275 ~ 800 kV). Uhv cable: (1000 kV and above). The above is the relevant content of cable specifications and models.Hope to be helpful to everyone! Tuba rabbit decoration network, material quality, process standardization, unified management, built later security services, let you rest assured, worry.
There are many kinds of cable specifications, common specifications include: classification by section size: cable according to section size can be divided into a variety of specifications, such as 1 square mm, 5 square mm, 5 square mm, 4 square mm and so on. This is one of the basic specifications of the cable, and the cable with different section sizes is suitable for different current bearing requirements. Explanation: The size of the section of the cable is directly related to its ability to carry current.
On the marketCommon wire specifications according to the size of the conductor cross-sectional area, mainly including 5 square millimeters, 5 square millimeters, 4 square millimeters, 6 square millimeters and 10 square millimeters. The specifications of the wire determine the current and voltage it can withstand. Under normal circumstances, the larger the size of the wire, the stronger its carrying capacity. For less powerful electrical equipment such as lighting fixtures, 5 square millimeters of wire is usually sufficient.
The points of attention when using electric soldering iron are safe operation, heat control, and stable supportProtective measures, reasonable use of solder, control of use time, ventilation environment, etc. Safe operation Before using the soldering iron, ensure that the work area is dry and clean, and keep flammable materials away from the work area. At the same time, ensure that the power cord, socket and switch of the electric iron are in good condition to avoid the risk of electrical failure and electric shock.
When using the soldering iron, keep the components and the soldering iron head clean. Before welding, ensure that all parts and joints are free of impurities. Clean the tip of the soldering iron with a damp rag, warm water and detergent to remove impurities and oxide film. When the temperature of the iron is suitable, the iron tip can be wiped with a wet sponge. Periodic clearanceExcess solder on the soldering iron head, keep the soldering iron head in the tinned state to prevent the solder from falling off.
The use of electric iron should pay attention to the matters are: keep the components clean, keep the iron head clean, correct welding, finishing after completion, regularly replace the iron and so on. Keep the components clean First of all before welding to ensure that all parts and connections are clean, when you are ready to weld components on the circuit board with a clean rag, in warm water and decontamination powder to remove impurities and oxide film on the surface of the circuit board, and then dry it.
Before using the electric iron, check whether the voltage used is consistent with the nominal voltage of the electric iron. Spot soldering ironIt should be grounded. After the electric soldering iron is energized, it can not be arbitrarily knocked, disassembled and installed. The soldering iron should be kept dry and should not be used in an excessively wet or rainy environment. Turn off the power when removing the soldering tip. After turning off the power supply, use the waste heat to put a layer of tin on the iron head to protect the iron head.
Care should be taken to keep the components and tip clean when using the soldering iron. This is an important note in the use of electric iron. Before welding, it is necessary to ensure that all parts and joints are clean. Clean the tip of the iron with a clean rag, warm water and detergent to remove impurities and oxide film. When the welding tool is raised to oneFamiliar with welding methods, welding tools and welding material selection. And understand the development of electronic welding technology in industrial production, welding process and assembly machine production process. Students are required to master the assembly, welding and debugging of the radio. Basic operating skills, and the production, installation, commissioning and testing of actual products.
Through two weeks of electronic practice, I have a certain perceptual and rational understanding of electronic components and radio installation and debugging, laying a good foundation for the future study of electronic technology courses. At the same time, the internship made me acquire the actual production knowledge and assembly skills of chargers and radiosIt has raised my ability to combine theory with practice, improved my ability to analyze and solve problems, and enhanced my ability to work independently.
This week, our class had a week-long electronic technology practice, the practice task is to make a radio, in fact, is a simple assembly! At the beginning, I didn't know exactly what to do in the electronic craft internship, thinking that it would be like the old metalworking internship. Later I learned that I made a radio by myself, and the works I did could be taken back.
This practical training let me learn welding knowledge, but also personally made the charger and the receiverThe sound machine. It's totally different to use a radio you made yourself. However, while I was happy, I also felt a little sad, because I did not fully grasp the circuit design and original selection. This prompted me to reflect that I needed to improve myself and master more skills.
The first: Electronic process practice report (2016 recommended) Internship content: (1) learning to identify simple electronic components and electronic circuits; (2) Learn and master the working principle of the radio; (3) Weld components according to drawings, assemble a radio, and master its debugging method. Internship equipment introduction: (1) Electric soldering iron: due to the welding of the yuanThere are many pieces, so the use of external heat soldering iron, the power is 30w, the soldering iron head is made of copper.