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At the end of January, Tesla CEO Elon Musk told investors that the company would launch a "profit-oriented driverless taxi service" in Austin, Texas, by June this year. Tesla has few regulatory restrictions in Texas, raising questions about the safety and legal risks it will take by deploying unproven driverless technology on public roads. Tesla has long blamed customers for accidents involving driver-assistance systems Autopilot and "full Autopilot" (FSD), and has reminded Tesla owners to be ready to take over the vehicle when the system is activated. Now Musk has promised to launch true driverless taxis, a move that legal experts say would make Tesla fully liable in the event of a traffic accident. For a decade, Musk has promised to launch a fully self-driving Tesla car, but has never been able to deliver. Those promises have become more frequent and the timeline tighter in recent months as Musk has shifted Tesla's focus from selling affordable electric cars to developing and deploying self-driving vehicles. However, Musk's vague rhetoric has left investors wondering when Tesla will actually launch fully autonomous driving technology, how big and what the business model will be. To date, Tesla has never demonstrated this technology on public roads. Tesla and Musk did not respond to requests for comment. Current Texas law does not prohibit Tesla from launching a driverless taxi service. The hands-off approach to regulation is in line with Musk's growing opposition to government intervention as an adviser to US President Donald Trump. Under Texas law, self-driving companies are free to operate on public roads as long as they are registered and insured like human-driven cars, but they must be equipped with technology that can record data on any potential accidents. There is no state agency that licenses or regulates driverless taxi services, and state law prohibits cities and counties from setting their own regulations for driverless cars. Texas Senator Kelly Hancock is the sponsor of the Texas Autonomous Driving Act of 2017. He said the Texas legislature wanted to promote the industry in a competitive market and avoid creating barriers with too many restrictions. "As a conservative, I want to minimize government intervention," he said. "We can't kill an industry by having different regulations in every place." In contrast, California has strict regulations on the operation of self-driving cars, and Musk moved Tesla's headquarters from California to Austin, Texas, in late 2021. So far, only two companies have been approved to operate paid driverless taxi services in California: General Motors' Cruise and Alphabet's Waymo. Both companies completed millions of miles of testing under strict supervision before they were allowed to carry passengers. Cruise has suspended its driverless taxis. In an earnings call held on January 29, Musk said he expected to release an "unsupervised" version of the FSD system in California this year. However, two California agencies that oversee the industry say Tesla has not applied for the permits required to operate driverless cars or carry passengers, and has not submitted test data to the state since 2019. California does not specify how much testing self-driving technology must undergo before it is approved, but other companies that have gone through the process have completed millions of miles of self-driving car testing under state supervision. State records show that since 2016, Tesla has submitted just 562 miles for testing. Musk's challenge Mr Musk announced his latest plans for driverless taxis on the same day that Tesla reported disappointing earnings that failed to meet analysts' expectations. This follows news that Tesla suffered its first sales decline in 2024. Still, Tesla shares rose 3% the next day. Musk has promised that Tesla will launch a "driverless taxi service" in Austin in June. Musk said he expects to roll out an "unsupervised" version of the FSD system later this year in California and "many areas across the United States." But he did not explain whether that meant a driverless taxi service, a feature that Tesla owners could buy, or some other service. Musk did say that the "unsupervised" version of the FSD system would be able to drive "without a human driver." Musk did not say how many cars would be deployed, how customers would use them or whether the service would be open to everyone. Brian Mulberry, client portfolio manager at Zacks Investment Management, a Tesla investor, said the rhetoric often leaves investors guessing about exactly what Tesla will launch and when it will be delivered. "That's the challenge for Musk: you're sort of playing divination with tea leaves, trying to figure out from a few words what's going to happen," he said. Musan also said he's not particularly worried about the promises and timelines Musk has made this year, as long as Tesla can show progress: "I think the blueprint is there." Bryant Walker Smith, a law professor at the University of South Carolina who studies autonomous driving, said Texas does not require "pre-approval" before Tesla can deploy driverless cars. However, after Tesla's Cybercab demonstration at a Los Angeles movie studio in October failed to live up to expectations, Smith expressed doubt that Tesla would deploy self-driving technology on a large scale in Texas or elsewhere. "Tesla is not going to make all its vehicles autonomous overnight in any environment," he said. According to Smith, Tesla is more likely to try a small scale test of the technology in an area of Austin, Texas, perhaps in good weather or through manual remote control to avoid crashes. "There should be many ways to operate," he said. "We have no power." Adam Hammons, a spokesman for the Texas Department of Transportation, said the state allows self-driving cars to be tested and operated on public roads "as long as they meet the same safety and insurance requirements as other vehicles." The proliferation of driverless cars on Austin's streets over the past two years has raised concerns among residents and authorities after a series of near-fatal accidents involving pedestrians, cyclists and other vehicles. In 2023, more than 20 Cruise driverless taxis caused a traffic jam near the University of Texas campus when the vehicles failed to meet and blocked an entire street. Gm declined to comment. Since July 2023, the city of Austin has received 78 formal complaints from law enforcement, first responders and residents. City officials said the complaints may not have fully documented all incidents involving the vehicles. A resident complaint in December said a Waymo vehicle blocked a lane for half an hour, causing "at least three incidents." "I cannot believe that you would allow potentially lethal technology to be tested on the citizens of this city," the complaint added. A Waymo spokesperson said the company has been working with local leaders and first responders to "earn the trust of the Austin community" and is constantly working to improve service. A spokesman for the Austin Department of Transportation and Public Works said police have also run into difficulties, with driverless cars unable to recognize traffic officers' command gestures and the city unable to issue tickets to the cars. Recently, the city proposed a way for police officers to file a complaint in municipal court when they spot a traffic violation. The spokeswoman said Tesla contacted Austin officials in May, and city officials provided information about local fire and police procedures, maps of areas around schools and school districts, and traffic rules during special events. Austin City Council member Zo Qadri is frustrated with the city government's inability to set rules against "private companies occupying public roads for testing," especially in downtown areas where driverless taxis are common. "The bottom line is we have no power.

"Precise installation, efficient production - DIP solution for insert machine to help upgrade intelligent manufacturing!" "Designed for the electronics manufacturing industry to improve efficiency, reduce costs and ensure quality!" In the field of electronic manufacturing, the precision and efficiency of the insertion process directly affect the product quality and production cost. DIP solution, to provide you with intelligent, high-precision insert equipment and technology, help enterprises to achieve efficient production and quality upgrade! Why choose our DIP solution?  High-precision mounting: Advanced visual positioning and motion control technology is adopted to ensure the mounting accuracy of components up to ±0.02mm. Efficient production: Support multi-varieties, small batch flexible production, mounting speed up to XX points/hour, greatly improve production capacity.  Intelligent inspection: Integrated AOI (Automatic Optical inspection) function, real-time monitoring of mounting quality, reduce defective rate.  Easy operation: humanized operation interface, support one-click wire change, reduce manual operation difficulty and training cost.  Stable and reliable: using high-quality core components, high equipment stability, reduce downtime maintenance time. Applicable industry: Consumer electronics manufacturing Automotive electronics production Industrial control equipment Communication equipment manufacturing Medical electronic equipment Customer testimonies: "Since the introduction of the DIP solution, our productivity has increased by 40% and the defect rate has decreased by 60%!" -- Production manager of a well-known electronic manufacturing enterprise "The equipment is simple to operate and easy to maintain, which really helps us achieve cost reduction and efficiency increase!" -- Technical Director of an automotive electronics supplier Call to action: Consult now and get a customized solution for free! Contact us at :+86-13662679656 Visit https://www.smtmachine-spareparts.com  For more information, please contact :liyi@gs-smt.com Slogan: "Insert machine DIP solution - make every component accurate, make every product flawless!"

First, stable performance Samsung chip machine has a great guarantee in terms of performance in the use and work project, and it has achieved good optimization in terms of efficiency and time when working, and has also achieved stability protection. In terms of problems, there are fewer errors and problems, they rarely occur, or they can be solved quickly once they occur. This is an advantage that other SMT machines lack. It is also a prominent feature of Samsung chip machine. Second, the equipment is tough In terms of the performance of the equipment, Samsung chip mounters have high guaranteed quality, both in terms of hardware basis and software. Compared with other brands of chip mounters, the use time of the equipment is relatively long, and the consumption of the use is relatively small. Therefore, the problems caused by the maintenance work in the later stage of the product are relatively less, which is the basic advantage of the equipment. It is also a more important aspect, because the performance of the equipment is to ensure all work. Third, price advantage Although Samsung chip mounters have advantages compared with other brands in quality and work efficiency, they will not be higher than them in price, but have a very affordable price and are willing to be accepted by people, which is an important aspect to ensure that Samsung chip mounters are prominent in the market competitiveness, and it is also an aspect that we often value when choosing chip mounters. Fourth, after-sales service Mechanical equipment is generally used for a long time, and there will be more or less some problems in the process of use, these problems and problems in the Samsung chip machine has been a good solution.

Dear customers and friends, We are pleased to announce the arrival of our new 2023 JUKI JUKI RS-1R units, feeders, multi-function trays and accessories. If you have any questions, please feel free to contact our customer service team, we will be happy to serve you. Buy it now! Make Yamaha a weapon in your production and enjoy a quality experience just like before! If the part number is not listed on our website, please email: liyi@gs-smt.com We will give you a quote as soon as possible!

Riyadh, 9 February 2025 - Alat Enat, an innovative company committed to transforming global industries by creating a world-class manufacturing hub in Saudi Arabia, and global technology leader Lenovo Group today held a groundbreaking ceremony for a new manufacturing base in Riyadh. Located within the Riyadh Complex campus operated by the Saudi Special Integrated Logistics Zone (SILZ), the new facility will cover an area of 200,000 square meters and will be designed, built and operated with a high standard of sustainability, with an expected annual production capacity of millions of "made in Saudi Arabia" laptops, desktops and servers. After obtaining shareholder and regulatory approval, the two parties announced on January 8 the completion of the three-year US $2 billion non-interest-bearing convertible bond investment and the strategic cooperation agreement announced in May 2024. This important development marks a solid step forward in the strategic cooperation between the two parties, and Lenovo's growth in Saudi Arabia and the Middle East region is expected to accelerate again. Amit Midha, CEO of Alat Enet, attended the ceremony with Yang Yuanqing, CEO of Lenovo Group. Yang Yuanqing (sixth from left), CEO of Lenovo Group, and Amit Midha (fifth from left), CEO of Alat Enat, lay the foundation stone of the new plant in Riyadh According to the plan, the new plant is expected to start production in 2026 and will be located in the Saudi Special Integrated Logistics Zone (SILZ), just a 15-minute drive from Riyadh International Airport. When completed, the plant will become an integral part of Lenovo's global manufacturing network with manufacturing sites in more than 30 markets, including China, Argentina, Brazil, Germany, Hungary, India, Japan, Mexico and the United States. At the same time, the new facility will enhance the resilience and flexibility of its global supply chain, while providing more agile service to customers in the Middle East and Africa region. Lenovo Group has been praised for its excellence in global supply chain operations and has been ranked among the top supply chains in various industries around the world - ranked 10th in Gartner's Global Supply Chain Top 25 list. The new facility in Riyadh will further expand Lenovo's presence in the region, bringing industry-leading products, services and solutions to the local market more quickly, and taking full advantage of the high growth opportunities in the information technology and enterprise services industry in the Middle East and Africa. This strong strategic partnership and investment will help Lenovo further strengthen its global presence and fully grasp the huge growth opportunities in Saudi Arabia and the Middle East - Africa region. We are very pleased to form a long-term strategic partnership with Alat Enat, and with our leading global supply chain and innovation capabilities, Lenovo will help Saudi Arabia achieve its Vision 2030 of economic diversification, industrial development, technological innovation and job growth." -- Yang Yuanqing, Chairman and CEO of Lenovo Group We are very proud to be a strategic investor in Lenovo Group and work with them to help them continue to maintain their leading position in the global technology industry. Alat and Lenovo have also entered into a business development and expansion agreement to leverage Alat's extensive local network and rich market insights. With the establishment of Lenovo's regional headquarters in Riyadh and a world-class manufacturing base in Saudi Arabia powered by clean energy, we look forward to seeing Lenovo further unlock its potential in the Middle East and Africa region." -- Amit MidhaAlat, CEO of Ennett On the same day, Yang Yuanqing also attended LEAP 2025, the largest science and technology event in the Middle East, in Riyadh. Yang Yuanqing said at the opening ceremony, "Lenovo Group will also set up its regional headquarters for the Middle East and Africa in Riyadh and establish a new flagship retail store to be closer to local customers." We are proud to embark on a new chapter of growth, innovation and collaboration, and look forward to working with all parties to build a smarter future." Yang Yuanqing attended LEAP 2025, the largest technology event in the Middle East, held in Riyadh The Middle East and Africa market is becoming a competitive hot spot for global IT companies, and Saudi Arabia is the economic and technological hub of the Middle East region. This year's LEAP 2025 has attracted many of the world's leading technology companies, including Lenovo Group, to participate in the exhibition, and the Middle East craze continues to heat up. Yang Yuanqing attended LEAP 2025, the largest technology event in the Middle East, held in Riyadh The investment of Lenovo Group and Alat Enat in Saudi Arabia will greatly contribute to the achievement of Saudi Arabia's economic goals and is highly aligned with the strategic plan of Saudi Arabia's Public Investment Fund (PIF) and Saudi Arabia's Vision 2030. The partnership is expected to create up to 15,000 direct jobs and 45,000 indirect jobs, laying a solid foundation for sustainable growth and national development in Saudi Arabia. By 2030, the cooperation between the two sides is expected to contribute $10 billion to Saudi Arabia's non-oil GDP. The Lenovo investment is one of Alat Enat's many investment plans through 2030, aiming to build on Saudi Arabia's rapid development momentum in the technology sector and enhance the kingdom's capabilities in this field. Alat Enat will also further empower private enterprises and optimize the business environment through its own business systems and partnerships with leading global technology manufacturers. Today, Alat is focusing on building innovation and manufacturing capabilities in nine business segments, including semiconductors, smart devices, smart buildings, smart appliances, smart healthcare, electrification, advanced industries, next generation and AI infrastructure. The company will produce 34 product categories in these nine areas and has hired top global industry experts to lead each business segment.

IPC APEX EXPO 2019 Closed Premier Electronics Industry Conference and Exhibition Dates: Saturday, January 26, 2019 - Thursday, January 31, 2019 Venue: San Diego Convention Center, San Diego CA, United States

As DeepSeek continues to be popular, people are not satisfied with the use of DeepSeek on the web and APP side, and try to localize DeepSeek. Localisation involves installing DeepSeek's large AI models on local computers, without relying on networks or cloud services. Reporters searched video websites and found that many users uploaded tutorials on how to deploy DeepSeek to local computers, and many videos were viewed more than 1 million times. DeepSeek sparks local deployment boom   Teaching people to deploy DeepSeek has also become a business. Through searching for "DeepSeek local deployment" on the e-commerce platform, the reporter found that many shops have opened up DeepSeek local deployment business, and the unit price of these services ranges from a few dollars to dozens of dollars, and some of these services have recently been purchased by 1,000 people.   An AI enthusiast who has tried to deploy told reporters that the response speed of the network side is slow, and when the traffic is too large, there is often "the server is busy, please try again later." In order to get a better experience, he tried to use DeepSeek for local deployment. It is understood that local deployment does not need to master deep programming knowledge, through the tutorial step by step, you can deploy successfully. Zhang Yi, chief analyst at IIMedia Consulting, told reporters: "Local deployment supports individuals to make some customized modifications to DeepSeek according to their needs, which is also one of the driving forces." Zhang Yi added that personal data in the local deployment does not go to the cloud, which can meet the privacy needs. DeepSeek published models with varying numbers of parameters, from as small as 1 billion parameters to as large as 671 billion parameters, and the larger the parameters, the greater the computational resources required. Due to the limited computing resources of devices such as personal computers and mobile phones, the 671 billion parameter DeepSeek model often cannot be deployed locally. "A typical laptop can only deploy a billion-parameter version, but a PC with a good GPU or high memory (say 32GB) can run a 7-billion-parameter version of DeepSeek." The AI technology enthusiasts told reporters. In terms of the effect of local deployment, the smaller the version of parameters, the worse the answer quality of the large model. "I tried the 7 billion parameter version of DeepSeek deployed locally, and it ran smoothly, but the answer quality was much worse than the cloud version, and the effect of the smaller parameter version was even worse." The above AI enthusiasts said. Under the heat of DeepSeek's local deployment, AI PCS that specifically add NPU to PCS are expected to usher in sales growth. It is understood that Huawei, Lenovo and other computer brands have launched AI PC, this new PC is equipped with specialized processing of local deployment of AI large model computing processor chips, these processor chips are provided by Intel, AMD, Qualcomm and other chip factories. These AI PCS can be deployed locally and run smoothly tens of billions of parameters of the AI large model, such as this CES 2025, AMD launched Ryzen AI max series processors, saying that the computer can run 70 billion parameters of the AI large model. However, the AI PC equipped with the processor chip is expensive, and it is understood that the price of an Asus game book is nearly 15,000 yuan. In addition, some people have questioned that spending a lot of money to buy AI PCS, carry out local deployment of AI large models, and achieve functions that are highly overlapping with cloud AI large models, AI PC is just a gimmick of manufacturers. Enterprises try to deploy DeepSeek locally In addition to individuals opening DeepSeek local deployment, enterprises are also beginning to try. On the first day of the working day of the Year of the Snake, Wang Jiahui, the founder of Timwei Ao, released a wechat circle of friends: "DeepSeek large model local computer deployment experience success, import coal mine knowledge safety database for questions and answers, the next step is to combine it with industrial field operations." Timviao is a company that provides industrial management solutions for the mining industry, oil industry and other industries, using AR glasses and AI software to provide real-time observation and guidance for the maintenance, quality inspection and troubleshooting of industrial field personnel. Wang Jiahui told reporters that only Tongyi Qian ask AI large model to create a local knowledge base question and answer, in view of DeepSeek better reasoning ability, he is considering DeepSeek and business deep integration. "On the basis of DeepSeek, we fine-tune specific parameters or secondary develop them to fit IT systems and implement new functions based on the needs and data of specific industrial scenarios." "Our goal is to deploy DeepSeek locally and interact with cameras in the field to better identify dangerous operations on site, and to implement functions such as hidden danger detection and product quality inspection," Wang told reporters. He believes that whether industrial customers adopt on-premises deployment depends mainly on the confidentiality of the data. "Some state-owned enterprises, military and medical equipment companies often ask us to implement local deployment solutions because they have high requirements for data security." He further added: "Non-secret scenarios can use cloud access solutions, although there will be operational delays, but the impact is small, and the solution price is lower." For on-premises deployments, these customers require servers equipped with 4-card or 8-card Gpus to implement DeepSeek local inference services. "My customers generally choose Nvidia's consumer graphics cards to configure their servers, such as the 4090, for better value for money." "If customers have domestic configuration requirements, we will buy more expensive domestic GPU graphics cards," Wang said. In addition to industry, more and more enterprises are starting to deploy DeepSeek locally. Sinolink Securities said that DeepSeek can be applied to information retrieval, document processing, industry research, market research and other scenarios. In addition, enterprises in the medical industry, network security and other industries have also recently deployed DeepSeek locally, including Wanda Information and Qihoo 360. Zhang Yi told reporters that as enterprises expand their requirements for localized deployment, the demand for domestic reasoning computing power will increase, and the United States bans high-end chips, domestic chip computing power companies will usher in greater opportunities. AI applications will explode Qualcomm CEO Cristiano Amon said that DeepSeek-R1 is a turning point for the AI industry, AI reasoning will migrate to the end side, AI will become smaller, more efficient, and more customized, and AI large models and AI applications based on specific scenarios will appear. China Aviation Securities Research report believes that DeepSeek-R1 shows that the end-to-end AI deployment will become more inclusive, and the era of all things intelligent will accelerate. Open source will entice more developers to build apps on top of DeepSeek. Domestic GPU cards such as Huawei Centeng, Moore Thread, Bishi Technology, and Daywise Core have been adapted to DeepSeek; Tencent Cloud, Alibaba Cloud, mobile cloud, Huawei Cloud and other cloud manufacturers also completed the adaptation with DeepSeek. The adaptation optimization of domestic computing power is expected to further reduce the cost of inference side. As the domestic app payment habit is not yet fully mature, the commercialization of AI applications may be hindered. Meng Can, chief of National Finance Computer, believes that the United States has a 10-year or even 20-year basis for application payment, which is helpful for the commercialization of AI applications, while the domestic market will be slow due to the lack of such a foundation. However, the country is constantly catching up, and the time schedule is expected to be reduced to less than half a year.

What is the difference between lead-free reflow soldering and leaded soldering? First of all, we should understand that the whole process of lead-free welding is longer than that of lead welding, and the welding temperature required is also higher, mainly because the melting point of lead-free solder is generally higher than the melting point of lead solder, and the wettability will be worse. So, what do you need to pay attention to in the lead-free reflow welding process? Before the lead-free reflow welding begins, we first need to choose the right welding material, because in terms of its welding process, the selection of lead-free solder, solder paste, flux and other materials is particularly important and quite difficult. In the selection process of these materials, we need to take into account the type of welding components, the type of circuit board and its surface coating status, which are generally selected by experience. After selecting the welding material, we also need to choose the welding method, which generally needs to be selected according to the specific situation, such as in terms of component type, reflow welding method can be used for some surface mounted components, and wave soldering or spray welding can be selected for through hole inserted components. Here we also roughly introduce several common welding applications, for wave soldering, it is mainly suitable for some of the whole board through the hole insert components suitable for welding, dip welding method is more suitable for some of the whole board is relatively small, or there are parts of the board through the hole insert components when welding, Spray welding is more common in the welding of individual components on some plates or a small number of through-hole inserts. After the welding method is selected, the type of welding process is determined, at this time, we only need to select the equipment according to the welding process and the related process control wants to check together. In addition, the manufacturer of lead-free reflow welding also needs to continuously improve the lead-free welding process, so that the product can achieve higher requirements in quality and pass rate. For any lead-free welding process, changing its welding materials and updating equipment can effectively improve its welding performance.

Reflow daily maintenance content: (1) Check whether there is grease in the transmission chain, and add grease in time if necessary. (2) Check that there is no running edge in the transport network, and notify HB in time if there is running edge. (3) Check the reflow furnace inlet mesh belt drive wheel is not shifted, if there is a shift can be adjusted by loosening the screw - adjusting - locking the screw step. (4) Check whether the net belt drive roller at the outlet of reflow furnace is loose, if it is loose, it can be adjusted according to the steps of loosening the screws - adjusting - locking screws. (5) Check whether the high temperature oil in the oil cup is appropriate, the oil surface should be 5mm from the mouth of the cup, if necessary, add high temperature oil in time. Reflow maintenance content: (1) Check the surface of the transport network belt for dirt adhesion, if there is loot adhesion in time with alcohol scrub. (2) Check the guide rail chain groove for foreign bodies, if there are foreign bodies in time to remove the chain with alcohol scrub. (3) Check whether the bearings of the driven gear of the transport chain are flexible, and add lubricating oil in time when necessary. (5) Check whether there is grease on the surface of the lead rod of the head component and no foreign matter, wipe it clean in time when necessary, and add grease. (6) Check whether there is FLUX and dust on the rectifier plate in each area of the furnace, and clean it with alcohol in time if there is dust. (7) Check whether the lifting motor of the furnace lifting system is running without vibration and noise, if there is vibration or noise, it should be replaced in time (8) Check whether the filter of the exhaust device is blocked, if there is blockage, alcohol should be used to clean. (9) Check whether there is FLUX adsorption on the rectifier plate in the cooling area of the cooling system. If there is FLUX, it should be cleaned with alcohol in time. (10) Check that the surface of the photoelectric switch at the transport entrance has dust-free accumulation. If there is dust accumulation, it should be wiped clean with a soft dry rag in time. (11) Check whether the surface of the PC and UPS is clean. If there is dust accumulation, it should be wiped with a soft dry cloth in time. Monthly maintenance contents of reflow welding: (1) Check whether there is vibration and noise in the transportation process, and notify HB in time if necessary. (2) Check whether the transport motor fixing screw is loose, if it is loose, lock the screw. (3) Check whether the tension of the transmission chain is appropriate, and adjust the motor positioning screw in time if necessary. (4) Check whether there is coke and black powder on the transport chain, if there is, it should be removed in time and cleaned with diesel oil. (5) Check the positioning of the synchronous shaft of the width adjustment in the track of the active end, and whether the fixed block is loose. If it is loose, it should be locked in time. (6) Check whether the hot air motor positioning screw is loose, if loose, it should be locked in time. (7) Check whether there is dust and foreign matter in the control box of the electrical system. If there is foreign matter, blow out dust and foreign matter with the same pressure air after power off.

Reflow welding system is to extract high temperature air containing a lot of flux from the preheating zone, reflow zone and cooling zone, after external cooling system, the clean gas is sent back to the furnace. Notes for lead-free reflow curve setting 1, increase the preheating temperature In lead-free reflow welding, the preheating zone temperature of the reflow furnace should be higher than that of the preheating temperature of the tin/lead alloy reflow. It is usually about 30 ° C high, and the purpose of increasing the temperature of the preheating zone at 170 ° C-190 ° C (the traditional preheating temperature is generally 140 ° C-160 ° C) is to reduce the peak temperature to reduce the temperature difference between components. 2. Extend the preheating time Appropriate extension of the preheating time, preheating too fast on the one hand will cause thermal shock, is not conducive to reducing the temperature difference between the components in the formation of peak reflow temperature. Therefore, the preheating time of the preheating is properly extended, so that the temperature of the component to be welded smoothly rises to the predetermined preheating temperature. 3, extend the trapezoidal temperature curve of the reflow zone Extended trapezoidal temperature curve in the recirculation zone. While controlling the maximum reflow temperature, increase the temperature curve width of the reflow area, extend the peak time of small heat capacity components, so that the components with large and small heat capacity can reach the required reflux temperature, and avoid overheating of small components. 4, adjust the consistency of the temperature curve When testing and adjusting the temperature curve, although the temperature curve of each test point has a certain dispersion, it is impossible to be completely consistent, but it should be carefully adjusted to make the temperature curve of each test point as consistent as possible.

In the reflow welding process, welding large heat-absorbing PCB products (especially with metal fixtures), the cooling process has a great impact on the welding quality, but also a process that requires very high temperature control ability, if the cooling speed is too slow during the cooling process, it will lead to low solder joint strength, high outlet temperature, and even in a semi-molten state. Affect the next process of online equipment, such as the use of online AOI. Haobao Reflow adopts unique structural design and cooling technology to achieve fast cooling process, ensuring high cooling slope and low exit temperature of PCB products

The reflow furnace is the equipment with the largest power consumption in SMT. After expert testing, the energy consumption of the existing reflow furnace for work (heating PCB) is not very high, not exceeding 40% of the total energy consumption; Where did the other 60% go? The main energy consumption is analyzed as follows: 1--> Body absorbs heat energy. 2--> Shell radiates heat. 3--> Heat energy taken away by cooling zone and exhaust gas. 4--> Power consumption of reflux fan, transmission network chain and control system. 5--> The heat convection imbalance in the temperature zone causes the heat lost from the inlet or outlet of the plate. Energy-saving technologies for reflow furnaces include: 1. Use high temperature resistant ceramic fiber cotton to strengthen heat insulation of furnace. 2. Adjust the airflow balance according to the temperature difference in the temperature zone. 3. Install the energy-saving control system to automatically adjust the operating parameters according to the predetermined time of multiple stages during standby. 4. Install a speed regulating device to control the speed of the reflux fan, and automatically adjust the speed for about 10 minutes on standby. The running speed of the motor will be reduced or stopped according to the actual situation, which will minimize the consumption and improve the power factor of the motor. 5. Install the electric air valve to automatically control the opening and closing according to the working condition.