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2021-05-08

How Many Types of Oxygen Generators?

Principle of molecular sieve Molecular sieve oxygen generator is an advanced gas separation technology that uses physical technology to directly extract oxygen from the air. It is ready for use, fresh and natural, and the maximum oxygen generation pressure is 0.2~0.3MPa (that is, 2~3 kg). There are dangers such as high pressure and explosion. It is an oxygen production method with international and national standards. Principle of polymer oxygen-enriched membrane This kind of oxygen generator adopts membrane oxygen production method. Through membrane filtration of nitrogen molecules in the air, the oxygen concentration of the outlet reaches 30%. It has the advantages of small volume and low power consumption. However, the oxygen produced by this type of oxygen generator is 30% oxygen, which can be used for long-term oxygen therapy and health care. However, the first aid required under severe hypoxia can only use medical high-concentration oxygen. So it is not suitable for home use.
2021-05-08

Operation Method of Oxygen Generator

1. Install the main engine as a floor type or install a rack to hang it on the wall outside, and install a filter; 2. Nail the oxygen supply gusset on the wall or support as needed, and then hang the oxygen supply; 3. Connect the oxygen supply port with the oxygen supply tube, and connect the 12V power supply line of the oxygen supply to the 12V power supply line of the host. If multiple oxygen supplies are connected in series, you only need to add a three-way joint and fix the pipeline with a wire buckle; 4. Plug the 220V power cord of the host into the wall socket, and the red light of the oxygen supply will be on; 5. Please add pure water to the designated position in the humidification cup. Then install it on the oxygen outlet of the oxygen supply; 6. Please put the oxygen delivery tube on the oxygen outlet of the humidification cup; 7.Press the oxygen supply start button, the green indicator light will be on, and the oxygen generator will start to work;. 8. According to the doctor's advice, adjust the flow to the desired position; 9. Hang the nasal cannula or wear the mask to inhale oxygen according to the packaging instructions of the oxygen mask or nasal suction tube.
2021-04-30

What Is The Use of A Medical Oxygen Generator?

The Use of A Medical Oxygen Generator 1.Medical function: By supplying oxygen to patients, it can cooperate with the treatment of cardiovascular, cerebrovascular, respiratory system, etc. Chronic obstructive pneumonia and other diseases, as well as gas poisoning and other severe hypoxia symptoms. 2.Health care function: Improve the oxygen supply status of the body by supplying oxygen to achieve the purpose of oxygen supplement and health care. Suitable for middle-aged and elderly people, people with poor physical fitness, pregnant women, college entrance examination students and other people with varying degrees of hypoxia. It can also be used to eliminate fatigue and restore physical functions after heavy physical or mental exhaustion. 3.The oxygen generator is suitable for small and medium hospitals, clinics, health stations, etc. in cities, villages, remote areas, mountainous areas, plateaus, etc. It is also suitable for nursing homes, home oxygen therapy, sports training centers, plateau military stations and other oxygen use places. How to Choose A Medical Oxygen Generator? 1.Product performance. Whether the oxygen generator has a cumulative timing function, it can provide an objective and accurate basis for future maintenance and services. Whether the oxygen concentration can still meet the standard (93% 3%) under 24-hour uninterrupted working conditions. We must pay attention to the performance of the new machine, and more importantly, whether the long-term oxygen concentration is stable and long-term operation is reliable during use. 2.service system. Oxygen is a cardiopulmonary medicine. Oxygen therapy is an important medica
2021-04-30

The Working Principle of Medical Oxygen Generator

The medical oxygen generator is a kind of medical equipment that extracts oxygen from the air by using techniques such as pressure swing adsorption. It is suitable for oxygen therapy and health care in medical institutions and families. The principle of using the oxygen generator is called the medical molecular sieve pressure swing adsorption PSA oxygen generation system. It uses molecular sieve as the adsorbent and uses pressure swing adsorption (PSA) to use ambient air as the raw material at room temperature and low pressure . Under the conditions, the adsorption capacity of nitrogen (adsorbent) in the air is increased when the molecular sieve is pressurized, and the adsorption capacity of the nitrogen in the air is reduced when the pressure is reduced, forming a rapid cycle process of pressure adsorption and decompression desorption, so The oxygen and nitrogen in the air can be separated, and the carbon dioxide, gaseous acid and other gaseous oxides in the air are all substances with strong molecular polarity, which are difficult to pass through the molecular sieve, so that the purity of the oxygen produced can reach 93%. v/v above). According to the principle of pressure swing adsorption, zeolite molecular sieves are used as adsorbents. Due to the selective adsorption characteristics of zeolite molecular sieves, nitrogen is largely adsorbed by zeolite molecular sieves, oxygen is enriched in the gas phase, and nitrogen and oxygen separation is achieved under the action of pressure swing adsorption. Two adsorption tower processes are adopted, one for adsorption and oxygen production, a
2021-04-22

Cleaning Process of PCBA Cleaning Machine

In the production process of PCBA cleaning machine, it is very important to obtain information about potential pollution sources. At the same time, we need to understand the cleaning capacity of the cleaning equipment and ensure that the process is within the controllable range. Hazardous pollutants can usually be divided into two categories: ionic pollution and non-ionic pollution. The monitored process can better ensure the cleanliness and reliability of the product. We have carried out actual research on this. Cleaning is one of the processes of PCBA electronic assembly. With the continuous improvement of assembly density and complexity, it has once again become the focus in the production of high-reliability products such as military and aerospace, and has attracted more and more attention from the industry. According to the different cleaning media, cleaning techniques include solvent cleaning, water cleaning and semi-aqueous cleaning. Water cleaning can be divided into saponification method and water purification method. In the manufacturing process of PCBA cleaning machine, soldering, solder, solder wire, etc. are used for soldering. The function of the flux in soldering is to remove the oxide on the soldering surface of the PCB board to make the metal surface reach the necessary cleanliness. The main components of the flux are organic acids, resins and other components. ROC is one of the leading manufacturers of SMT cleaning machines in China, mainly producing SMT Nozzle Cleaner, PCBA Cleaning Machine, PCB Cleaning Machine, SMT stencil cleaning machine, Jigs cleaning machine, Camera modules cleaning machine, Wafer Cleaner Machine, etc.
2021-04-22

Advantages of SMT Cleaning Equipment

SMT cleaning equipment includes nozzle cleaning, steel plate cleaning and carrier cleaning equipment. SMT cleaning equipment can make the machine cleaner and more effective. However, the cost of solvent is also invested, and water washing can be used to reduce the cost of rinsing. Ultrasonic washing is also a way to clean the machine. Different cleaning items should be cleaned according to their actual conditions. SMT cleaning equipment has the following advantages 1. Fully automatic operation, enabling the operator to do other tasks while using the machine, effectively saving time and cost. 2. The cleaning fluid is sprayed from the rotating nozzle. The unique design can better protect the machine. Compared with manual cleaning, SMT cleaning equipment can avoid excessive wear and extend the life of the template. 3. Compressed air is completely used as energy source, no electricity is needed, and there is no fire hazard; 4. Humanized design, high degree of automation, one-button operation, easy cleaning. 5. This machine completely uses compressed air as energy, does not use electricity, does not have any fire hazards, and has good safety performance. ROC is one of the leading manufuturer of SMT Cleaning Machinery, can supply PCBA Cleaning Machine, PCB Cleaning Machine, SMT Nozzle Cleaning Machine, SMT stencil cleaning machine, Jigs cleaning machine, Camera modules cleaning machine, Wafer Cleaner Machine, etc. If you have any questions about SMT cleaning, please contact us, we will give you professional advice.
2021-03-10

What are the Skills in SMT Cleaner Machine Patch Processing?

The main recommendation for disassembly of high pin density components in SMT patch processing is to use a hot air gun to clamp the components with tweezers, blow all the pins back and forth with the hot air gun, and lift the components when they are melted. If you need to disassemble the parts, do not blow to the center of the parts, and the time should be as short as possible. And clean the gasket with a soldering iron after removing the parts. For SMT cleaner machine components with a small number of pins, such as resistors, capacitors, bipolars and triodes, first tin plating on a pad on the PCB board, and then use tweezers to clamp the component in the mounting position with your left hand and fix it on the circuit On the board, use the right hand to solder the pins on the pads to the pads sold. The tweezers in the left hand can be loosened, and the remaining feet can be soldered with tin wires. This kind of part is also easy to disassemble, as long as both ends of the part and the soldering iron are heated at the same time, and the tin is melted and lifted slightly to disassemble. Other business products of our company: Wave-soldering, Reflow Oven, PCB/PCBA Separators, Smt Cleaning Machine, PCB Separator, Mounting Pick Machine. Please feel free to contact us.
2021-01-16

SMT Welding Technology and Reflow Machine Introduction

Welding technology plays an extremely important role in the assembly of electronic products. General welding is divided into two categories: one is mainly applied to the welding of through-hole plug-type electronic components and printed boards - wave soldering, the so-called wave soldering (wavesoldering) is to melt the solder, the electric The pump or electromagnetic pump sprays the solder wave peaks required by the design to allow the printed boards pre-equipped with electronic components to pass through the solder peaks to achieve the mechanical and electrical connection between the component terminals or the leads and the PCB pads. Brazing; the other is mainly used for surface-mount components and printed board reflow soldering (reflowsoldering), also known as reflow soldering, the so-called reflow is re-melted by pre-distribution to the PCB pad The paste solder on the solder paste realizes the soldering of the surface-mount components or the mechanical and electrical connection between the leads and the printed circuit board pad, thereby realizing the circuit function with certain reliability. With the large-scale use of surface mount components in electronic products, reflow soldering technology has become a major process technology in surface mount technology. Its main process features are: the surface of the metal to be welded is cleaned (removed oxide) with a flux to make it have good wettability to the solder; the molten solder is supplied to moisten the metal surface; and the intermetallic compound is formed between the solder and the weld metal In addition, micro-welding can be realized. Reflow soldering is a group or point-by-point soldering process in which a proper amount and appropriate form of solder are applied to the soldered area (pad) of the PCB in advance, and then the surface mounted components are placed and the solder is reflowed by the external heat source to meet the soldering requirements. Reflow soldering has the followin
2021-01-08

How to Take Anti-static Measures for PCBA Processing?

The harm of static electricity to PCBA products When processing PCBA, processing personnel will strictly follow the bill of materials, PCB silk screen and outsourcing processing requirements to insert or mount components. However, electronic components often generate more or less static electricity without paying attention. These static electricity will emit electromagnetic pulses during discharge, which will cause errors in computer calculations. In severe cases, they will also cause damage to devices and circuits. Only by taking anti-static measures can the machine and components be protected. How should anti-static measures be taken during PCBA processing? Anti-static measures for PCBA processing 1. All personnel who come into contact with components and products wear anti-static clothes, anti-static bracelets, and anti-static shoes. 2. The anti-static system must have a reliable grounding device. The anti-static ground wire must not be connected to the power neutral wire or shared with the lightning protection ground wire. 3. All components are treated as electrostatic sensitive devices. 4. During the operation, use an anti-static work surface, and use anti-static containers for components and semi-finished products. 5. The welding equipment is grounded reliably, and the electric soldering iron is of anti-static type, which must be tested before use. 6. Warehouse management personnel should wear anti-static gloves when sending materials and IQC inspections, use meters to be grounded reliably, and anti-static rubber pads on the work surface. 7. Periodically inspect the above-mentioned anti-static tools, settings and materials to confirm that they are in the
2020-12-26

SMT Production Line Placement Machine Excellent Combination Scheme

SMT equipment: the choice of placement machine is the key The general SMT production process includes solder paste printing, patch and reflow three steps, so to form a complete SMT production line, it must include the equipment to implement the above process steps: printing machine, paste Tablet and reflow ovens. In particular, placement machines often account for more than 70% of the entire production line investment, so the choice of placement machines is the key. SMT machine manufacturers currently produce a large number of SMT machine manufacturers, the structure is also different, but according to the scale and speed can be roughly divided into large-scale high-speed machine (commonly known as "high-end machine") and medium-sized medium-speed machine (commonly known as "middle-range machine") There are other small placement machines and semi-automatic/manual placement machines. The price of a mainframe is generally 3 to 4 times that of a medium-sized machine. Manufacturers of large-scale high-speed placement machines mainly include Panasonic, ASM, Fuji, Yamaha, JUKI, Assembleon, etc. Manufacturers of medium-sized medium-speed placement machines mainly include Hanhua, Mirae, Mydata, Walasse, and Woody. Regardless of mainframe manufacturers or medium-sized machine manufacturers, the recommended SMT production line is generally composed of two placement machines: a chip chip placement machine (commonly known as high-speed placement machine) and an IC component patch Machine (commonly known as high-precision mounter) When buying a new placement machine, you first need to specify the following questions: How many different types of components can be used to produce the circuit board? How many different types of components will be used? What kinds of components will be used? What kinds of components will be used? How much is there to change? What is the average number of components per panel? How many boards can be produced per ho
2020-12-12

SMT Equipment Market Report 2020

The SMT equipment market will reach US$2.7 billion by 2027-SMT equipment market report 2020 Although the outbreak of the new crown virus has affected the global economy, driven by a revised compounded annual growth rate (CAGR) of 5.7%, the SMT equipment market will still grow by US$1.8 billion. High-Speed Placement Equipment, one of the segments analyzed and sized in this study, is forecast to grow at over 6.5% and reach a market size of US$2.7 Billion by the end of the analysis period. An unusual period in history, the coronavirus pandemic has unleashed a series of unprecedented events affecting every industry. The High-Speed Placement Equipment market will be reset to a new normal which going forward in a post COVID-19 era will be continuously redefined and redesigned. Staying on top of trends and accurate analysis is paramount now more than ever to manage uncertainty, change and continuously adapt to new and evolving market conditions. As part of the new emerging geographic scenario, the United States is forecast to readjust to a 6.9% CAGR. Within Europe, the region worst hit by the pandemic, Germany will add over US$79.5 Million to the region's size over the next 7 to 8 years. In addition, over US$79.5 Million worth of projected demand in the region will come from Rest of the European markets. In Japan, the High-Speed Placement Equipment segment will reach a market size of US$202.6 Million by the close of the analysis period. Blamed for the pandemic, significant political and economic challenges confront China. Amid the growing push for decoupling and economic distancing, the changing relationship between China and the rest of the world will influence competition and opportunities in the Surface Mount Technology (SMT) Equipment market. Against this backdrop and the changing geopolitical, business and consumer sentiments, the world's second largest economy will grow at 6% over the next couple of years and add ap
2020-11-28

What is a SMT Machine?

SMT is the abbreviation of Surface Mounted Technology, which is currently the most popular technology and process in the electronics assembly industry. SMT machines refer to machines and equipment used in SMT processing. The most basic equipment includes: automatic printing machine, placement machine, and multi-temperature zone reflow soldering. The internal circuit boards of all kinds of digital home appliances and other electronic products that are common in our daily life are realized by this technology. The electronic components are mounted on the circuit light board through the placement machine in the smt device, and then the reflow oven is soldered. Eventually becoming a motherboard, smt plays a huge role in today's electronics industry. The main advantages of SMT over the older through-hole technique are: Much higher component density (components per unit area) and many more connections per component. Higher density of connections because holes do not block routing space on inner or back-side layers. Components can be placed on both sides of the circuit board. Small errors in component placement are corrected automatically as the surface tension of molten solder pulls components into alignment with solder pads. Better mechanical performance under shake and vibration conditions. Lower resistance and inductance at the connection; consequently, fewer unwanted RF signal effects and better and more predictable high-frequency performance. Fewer holes need to be drilled. Lower initial cost and time of setting up for production. Simpler and faster automated assembly. Som

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