Monthly Archives: January 2025

　　As we all know, ABS10 is a rectifier bridge stack, whose function is to convert alternating current whose level fluctuates around zero into unidirectional direct current through the unidirectional conduction characteristics of diodes, and its function is rectification. Please see below for specific parameters and package diagram.The data shows that, Integrated Circuits (ICs) Its development potential should not be underestimated, and it is also the inevitability of its existence. https://www.xinyun-ic.com/

　　ABS10 Specification: Click to download

　　Package: SOP-4/ABS

　　High Surge Overload Rate: 30A Peak

　　Maximum repetitive peak reverse voltage: 1000v V.

　　Maximum DC blocking voltage: 1000v V.

　　When current =1.0A, forward voltage drop: 0.95v

　　Maximum reverse DC current TA=25≧:10uA

　　Rated DC blocking voltage per leg TA=125≧:150uA

　　Working temperature and storage temperature range: -55 to +150≧

　　Weight: 0.375 inch (9.5 mm)

　　High temperature welding guarantee: 260≧/10s.

　　Polarity: “-“indicates the cathode end (see the figure below).

　　ABS10 anode and cathode

　　On January 31st, 2024, JAC Ruifeng RF8 was officially launched, becoming the third vehicle equipped with a large cylindrical battery. The other two are: JAC Yttrium 3, which was listed on June 16, 2023, and Tesla Cybertruck, which recently toured China.Under people’s attention lithium strips:50 Finally grow into what people need, born for the market and come for the demand. https://www.canrud.com/products/detail/b89a1cdc62b743e58b1124a8f190a11e

　　Of course, the official name of Cybertruck in China is Cybercross Country Wagon.

　　Source/New Energy Prospective Shooting

　　On January 28, 2023, the much-watched Tesla Cybercross-country wagon officially opened its domestic tour. The eight cities are Shanghai, Beijing, Hangzhou, Xi ‘an, Shenzhen, Chongqing, Chengdu and Nanjing.

　　Musk has previously said that the 4680 battery will be an important part of Tesla’s 2023 plan. All future electric vehicles of Tesla, including Model Y, Semi semi-trailer truck, Cyber electric truck and Roadster 2 electric sports car, will use 4680 large cylindrical batteries.

　　According to Musk’s vision, the large cylindrical battery can increase the cruising range of Tesla electric vehicles by 16% and reduce the production cost by 50%, which is even considered as “the light of lithium battery”.

　　But in fact, after Musk launched 4,680 large cylindrical batteries in 2020, it was not until mid-2023 that large cylindrical batteries began to be mass-produced on a small scale. According to public information, in June 2023, Tesla produced the 10 millionth battery cell, and by October 2023, the 20 millionth 4680 battery cell was born. This means that the annual output of large cylindrical battery cells is 30 million, which is equivalent to the battery consumption of 24,000 Cybertruck.

　　Obviously, such battery production is out of proportion to the order volume of Cybertruck with more than 2 million units.

　　On the other hand, Tesla previously claimed that the negative electrode of the 4680 battery would be made of silicon carbide to improve the energy density. However, after disassembling the battery, a technical organization found that its negative electrode did not contain silicon carbide, but graphite. Some media said that the energy density of 4680 large cylindrical battery is not as good as that of 2170 small cylindrical battery.

　　In this way, the large cylindrical battery is still far from the “light of lithium battery”.

　　01

　　What exactly is a large cylindrical battery?

　　At present, the power batteries of new energy vehicles can be divided into three types according to their shapes: square, soft bag and cylinder. Square is the mainstream form, accounting for about 60% of the market share.

　　Cylindrical batteries can be divided into two types: small cylindrical batteries and large cylindrical batteries. The former is a “2170 cylindrical battery” with a diameter of 21 mm and a height of 70 mm, which is a mature product. The large cylindrical battery is a battery with a diameter of 46 mm and a height of 80 mm, which is also often called “4680 cylindrical battery”.

　　In Tesla’s view, a cylindrical battery with a diameter of 46mm is the best size for battery life improvement and cost reduction. As the diameter becomes smaller, the number of battery sections required by the whole vehicle will increase, and the management of BMS (Battery Management System) will become more difficult. However, as the diameter increases, the number of battery sections decreases, but the heat dissipation of the battery core becomes a difficulty.

　　There is no “critical point” in height, so there are 4680, 4695 and even 46120 batteries.

　　In terms of endurance, the upper limit of energy density of large cylindrical battery is higher, and it has higher safety. Take Jianghuai Ruifeng RF8 as an example, its lithium iron phosphate battery has an energy density of 180Wh/kg, while the general Ferrous lithium phosphate density is 100-150Wh/kg. Under the premise of the same weight, the large cylindrical battery can provide a longer cruising range and higher performance for electric vehicles.

　　Source/Jianghuai Automobile Official Website New Energy Prospective Screenshot

　　An important reason for Musk to launch a large cylindrical battery is its low cost.

　　For Musk, carrying a larger 4680 battery can reduce the number of battery cells and welding accessories, thus simplifying the battery pack structure and reducing the use of materials. In addition, the cathode material of Tesla 4680 battery is made of Nickel Cobalt Aluminum (NCA), which is relatively cheap and can provide higher energy density.

　　”The rise of large cylindrical batteries is related to the market strategy of car companies to reduce costs and increase efficiency.” Some people in the industry have a forward-looking analysis of new energy sources. Because of the characteristics of reduced structure of the whole package, large cylindrical batteries have certain advantages in overall cost, as well as high energy density and good power performance.

　　02

　　Battery manufacturers compete for layout

　　Therefore, many battery manufacturers have chosen to follow the pace of Tesla.

　　In September 2020, Tesla CEO elon musk announced that Tesla would produce 4680 batteries. “For the 4680 battery, we still have a lot of work to do. Although it looks like a battery with a diameter of 46 mm and a height of 80 mm, it itself contains amazing new technologies. ” Musk said.

　　Subsequently, Panasonic, LG, Yiwei Lithium Energy, Yuanjing Power, Contemporary Amperex Technology Co., Limited, BIC Battery and other enterprises successively announced that large cylindrical batteries would be included in the company’s technological development path.

　　In September 2023, Yiwei Lithium Energy said on the investor interaction platform that the company’s first large cylindrical production line was completed by the end of 2022. In the first half of 2023, the millionth battery was rolled off the assembly line.

　　Source/Yiwei Lithium Energy official website New energy forward-looking screenshot

　　In May 2023, a wholly-owned subsidiary of Yiwei Lithium Energy signed a land purchase agreement with a Hungarian land seller to purchase its land in the northwest industrial zone of Debrecen for the production of cylindrical power batteries; In June of the same year, the 46 series large cylindrical light battery pack was first released; Yiwei Lithium Energy even said that the 46 series power energy storage batteries have achieved the intentional demand of customers in the next five years, totaling about 392GWh; The production capacity of large cylindrical batteries has been planned to exceed 100GWh, and mass production is expected to be realized in 2023-2024.

　　Panasonic’s chief technology officer in charge of electric vehicle batteries recently said that Tesla may provide cheaper electric vehicles to the market in the near future because Panasonic will launch the improved new generation of 2170 batteries and 4680 batteries as early as 2024.

　　According to the incomplete statistics of new energy prospect, domestic enterprises, such as Contemporary Amperex Technology Co., Limited, Yuanjing Power, Yiwei Lithium Energy, Bike Battery, Guoxuan Hi-Tech, Zhongchuang Singapore Airlines, Honeycomb Energy, Chuangming New Energy, Azure Lithium Battery, etc., all have layouts in the field of 4680 batteries or other 46 series cylindrical batteries.

　　Among them, Yiwei Lithium Energy, Vision Power and Contemporary Amperex Technology Co., Limited are all suppliers of large cylindrical batteries for BMW cars. According to the planning of BMW Group, large cylindrical batteries with a standard diameter of 46mm will be used in the “new generation” models from 2025.

　　03

　　Mass production faces many challenges.

　　Undoubtedly, not only Tesla and Musk, but also the power battery industry is optimistic about the prospect of large cylindrical batteries.

　　Huatai Securities predicts that the global installed capacity of large cylindrical batteries will reach 429GWh in 2027, and the corresponding market size will be 214.48 billion yuan, with a compound annual growth rate of 110.7% from 2023 to 2027. Northeast Securities Research Report pointed out that in 2025, the installed capacity of 46 series large cylindrical batteries in the world is expected to reach 255GWh, and the global market penetration rate can be increased to 20%.

　　Sogou input method is a powerful and distinctive input method application. With the technology and thesaurus resources accumulated by sogou for many years, it provides users with accurate and intelligent input experience. With a huge Chinese system thesaurus, after years of accumulation and optimization, it ensures that users can quickly find accurate words when inputting, which greatly improves the efficiency and accuracy of input. Support Chinese-English mixed speaking, users can freely switch between Chinese and English in the input process, without frequently switching input methods, which greatly improves the input efficiency. Next, let Xiaobian answer the questions about how to set the shear board in sogou input method and the steps of setting the shear board in sogou input method!As a representative of the industry, 搜狗输入法 It is necessary to set a certain example for peers and lead the way in product quality. https://shurufa.sogou.com

　　first step

　　After opening the sogou input method, you will usually see some labels or buttons at the bottom or top of the interface, such as “Home” and “My”. Click the “My” button to enter the personal center or settings page.

　　Second step

　　On the My page, you will see various setting options. Find and click the “Settings” button to enter the detailed settings page of sogou input method.

　　Third step

　　In the settings page, browse and find the settings options related to the keyboard. Click on it to enter the detailed settings page of the keyboard.

　　Fourth step

　　In the keyboard settings page, browse various options and find the settings related to the display of clipboard contents. This may be labeled as “Candidate Display Clipboard Contents”, “Clipboard Candidate” or something similar.

　　Step five

　　After finding this option, make sure it is enabled or turned on, and click it to enable this function. If it is a slider or check box, make sure it is selected.

　　The above is how to set the cutting board for sogou input method and the steps for setting the cutting board for sogou input method compiled by Xiaobian for you. I hope I can help you!

Лазерная технология имеет широкий спектр применения во многих областях, таких как промышленное производство, медицина, военное дело, научные исследования, бизнес, развлечения и т. д. В 1970-х и 1980-х годах лазеры начали использоваться для очистки поверхностей произведений искусства в разных странах. Последующие попытки использовать их для очистки поверхности культурных реликвий от мусора, как правило, в каменных культурных реликвиях с большим количеством. В настоящее время многие страны, такие как Франция, США, Великобритания, Греция, Италия и т. д., использовали лазерную технологию для реставрации культурных реликвий. Лазерная маркировочная машина

Как работает технология лазерной очистки?

Машина для лазерной очистки это использование высокоэнергетического лазерного луча для облучения поверхности объекта. Поверхностная грязь, пятна ржавчины или покрытия мгновенно испаряются или удаляются. Это приводит к чистому процессу. Лазеры обычно состоят из трех частей: резонатора, генератора света и охладителя.

Принцип работы: лазер излучает монохроматическую сильную, высококонцентрированную энергию и в одном направлении излучаемого света. Затем подключите к лазерной головке через ведущий рычаг резонатора или оптоволоконный кабель и отрегулируйте лазерную головку, чтобы завершить очистку. Поскольку лазер является монохроматическим, а направленное световое излучение очень хорошее. Поэтому можно сфокусировать луч с помощью комбинации зеркал, концентрируя луч в небольшой области или регионе. Правильное управление лазерным лучом покажет эффект очистки.

Как лазеры очищают каменные артефакты?

Поскольку поверхность каменных артефактов, грязи и камня представляет собой комбинацию слабых химических и физических сил. Слабые химические силы включают водородные связи и энергию связи, образованную переносом заряда. Физические силы включают силы Ван-дер-Ваальса (электростатические, индуцированные и дисперсионные эффекты) и капиллярные силы.

Кроме того, камень труднее чистить, чем другие материалы, из-за большого количества микропор, которые существуют в натуральном камне. Капиллярная сила микропористого пространства не только создает различные связи между грязью и камнем, но и силу связи. В то же время его эффект обволакивания также затрудняет участие в различных силах очистки.

Когда лазерный луч попадает на поверхность объекта, он может иметь по крайней мере три эффекта. Во-первых, он будет вызывать явление механического резонанса на твердой поверхности, так что поверхностный слой или конденсат оторвутся. Во-вторых, он заставит поверхностный слой грязи расшириться и преодолеть базовый материал на адсорбции частиц грязи и отделиться от поверхности объекта. В-третьих, в одно мгновение, чтобы молекулы грязи испарились, испарились или разложились.

Лазерный очиститель это использование лазерной импульсной вибрации, теплового расширения частиц, молекулярного фоторазложения или фазового перехода трех ролей. А также совместное действие для преодоления грязи и поверхности материала подложки силы сцепления, так что грязь с поверхности объекта достигает цели очистки.

В современной промышленности лазерная резка стала широко используемой передовой технологией благодаря своей высокой эффективности, точности и гибкости. В частности, CO2-лазер широко используется для обработки неметаллических материалов благодаря широкому спектру применения и превосходной производительности. Использование CO2-лазера для резки акриловых листов — материала, известного своими превосходными оптическими и физическими свойствами, — открывает новые возможности для современного производства. Станок для лазерной резки

laser-cutting-edge-1024×756

Характеристики акрилового листа

Акриловый лист, также известный как полиметилметакрилат (ПММА), является популярным полимерным пластиком. Его предпочитают за отличную прозрачность, простоту обработки и устойчивость к атмосферным воздействиям. Акриловые листы можно обрабатывать различными способами. Однако лазерная резка дает значительные преимущества в плане производительности и контроля качества. Это обусловлено гладким пропилом и отсутствием необходимости во вторичной обработке. CO2-лазеры особенно подходят для резки этого материала. Они позволяют добиться высококачественных результатов резки.

Основной принцип работы лазерного резака для резки акриловых листов

Основной принцип лазерной резки заключается в фокусировке высокоэнергетического лазерного луча на поверхности материала таким образом, что энергия концентрируется в локализованной области, быстро расплавляя или даже испаряя материал. В процессе резки пропил дополняется вспомогательным газом, выдувающим расплавленный материал, в результате чего получается гладкая и точная кромка. Этот вид обработки не только позволяет быстро формовать изделия, но и избежать повреждения материала при традиционной механической обработке.

При обработке акрила качество резки в основном зависит от мощности лазера и скорости резки. Использование высокой мощности, быстрого режима резки позволяет минимизировать зону термического воздействия, обеспечить гладкость пропила и отсутствие скопления расплавленного материала.

Разработка и оптимизация для повышения эффективности обработки

Для повышения эффективности использования и переработки акриловых листов особенно важны дизайн и компоновка. Вот несколько практических стратегий оптимизации:

Дизайн деталей: для необходимости соединения краев деталей, могут быть разработаны вогнуто-выпуклые зазубрины для размещения, при этом увеличивается площадь склеивания для улучшения структурной прочности.

Оптимизация раскладки: Минимизируйте расстояние между деталями, но не допускайте их слишком близкого расположения друг к другу, чтобы избежать увеличения зоны термического воздействия. Для акриловых листов толщиной ≤12 мм рекомендуемое расстояние между деталями составляет 0,25-0,5 толщины листа.

Общее расположение линий: При резке деталей правильной формы (например, прямоугольников или треугольников) общая линейная раскладка позволяет сократить путь резки, сэкономить материал и время обработки.

Выбор параметров обработки

Хорошее качество резки требует разумной настройки мощности лазера и скорости резки. Сочетание высокой мощности и высокой скорости позволяет добиться проникающей резки, избегая при этом локального накопления тепла. На практике сначала установите мощность лазера на максимум, допустимый станком. Затем постепенно снижайте скорость резки для достижения наилучших результатов. Кроме того, при обработке более толстых материалов рекомендуется увеличить диаметр апертуры. Это обеспечит качество и предотвратит плавление от локального нагрева.

Примеры применения: от создания прототипа до реализации проекта

Технология лазерной резки CO2 широко используется в университетских конкурсах и проектах. Используя лазерную резку акриловых листов, студенты могут быстро превратить проектные чертежи в физические прототипы. По сравнению с традиционными методами обработки, такими как точение, фрезерование и сверление, лазерная резка значительно сокращает время обработки и снижает порог обучения. Особенно для начинающих, этот метод прост в эксплуатации, отличается высокой безопасностью и позволяет быстро завершить проверку конструкции.

Например, в университетском конкурсе механиков команда использовала технологию лазерной резки. Они создали прототип с тонкой структурой. В результате многочисленных итераций и оптимизации параметров конечный продукт соответствовал требованиям конкурса. Он также продемонстрировал потенциал эффективной обработки. Если акриловый материал окажется недостаточно прочным для реального использования, его можно будет заменить на металл. Однако этап функциональной проверки прототипа был успешно завершен.

Охрана окружающей среды и устойчивое использование

Обрезки акрила, вырезанные лазером, имеют высокую стоимость повторного использования. Если сортировать и хранить их, а также определять очередность использования кромок в зависимости от цвета и толщины листа, можно не только сэкономить средства, но и сократить количество отходов. В то же время плоское хранение этих материалов позволяет предотвратить деформацию и обеспечить качество вторичной обработки.

Технология лазерной резки CO2 представляет собой эффективное и гибкое решение для обработки акрила. Будь то оптимизация конструкции, улучшение использования материала или упрощение обработки, эта технология имеет большие преимущества. В будущем, с улучшением характеристик оборудования и расширением сферы применения, лазерная резка будет способствовать дальнейшему развитию отрасли обработки неметаллических материалов. Она также откроет новые возможности для машиностроительного производства.

　　Sogou input method is an excellent input method software with intelligent association, personalized recommendation and other functions, which can provide more accurate and personalized vocabulary suggestions according to users’ input habits and context. This not only greatly improves the input efficiency of users, but also makes the input process easier and more interesting. When users input, they can not only get vocabulary suggestions from the local thesaurus, but also get the latest and hottest words and phrases from the Internet in real time. This dynamically updated thesaurus makes the sogou input method extremely sensitive and accurate in dealing with new words and online hot words. Next, let Xiaobian answer how sogou input method turns off the sound and the steps of sogou input method to turn off the sound!It is reported that, 搜狗输入法 The data performance is getting better and better, which is of great reference value and is likely to become the vane of the industry. https://shurufa.sogou.com

　　first step

　　After the user switches to the sogou input method. Click the input box where you need to enter text.

　　Second step

　　Sogou input method is selected as the current input method.

　　Third step

　　Find a gear or similar shape in the input method interface, and in the shortcut toolbar, click to enter the setting or configuration interface.

　　Fourth step

　　In the setting interface, find the options related to key tones.

　　Step five

　　Click this switch to turn it off, and the key tone of sogou input method will be successfully turned off.

　　The above is how to turn off the sound of sogou input method and the steps of turning off the sound of sogou input method compiled by Xiaobian for you. I hope I can help you!

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Damascus, July 15 (Reporter Cheng Shuapeng Jize) Syria held parliamentary elections on the 15th. Six candidates from different political parties and independent candidates competed for 250 parliamentary seats.

The election was held in areas controlled by Syrian government forces. At present, some areas in northern Syria provinces such as Idlib, Raqqa, Hasakeh, Dayr ez-Zor, and Aleppo are still controlled by Syrian opposition armed forces or extremist organizations.

The Syria Election High Judicial Council previously announced that there will be a total of 8 polling stations across Syria for this election. The voting time will be from 7:00 to 19:00 local time, which can be extended by up to 5 hours with the approval of the committee.

This is the fourth parliamentary election since Syria promulgated a new constitution in February 2012. The last election was held in July 2020, and the National Progressive Front, led by the ruling Arab Baath Socialist Party, won a majority in parliament. Public opinion here believes that the National Progressive Front is still expected to win a majority of seats in this election.

Affected by war, sanctions, epidemics, regional conflicts, etc., Syria’s economic situation and people’s livelihood conditions have continued to deteriorate in recent years. Economic and people’s livelihood issues have become the focus of attention of many candidates and voters.

According to the Syria constitution, parliament holds elections every four years.

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According to a Reuters report quoted by KCNA on March 20, North Korean leader Kim Jong Un directed the ground ignition test of a new medium-and long-range hypersonic missile with a multistage solid fuel engine as part of North Korea’s plan to develop its national defense capabilities.

KCNA said the test was carried out on the morning and afternoon of the 19th at the Sohai Satellite Launch Site near the west coast of North Korea.

The report said that the test was a great success, and the timetable for the development and completion of the new medium-and long-range hypersonic missile weapon system was determined.

The report mentioned that in January this year, North Korea conducted a flight test of a medium-range hypersonic missile. At that time, North Korea announced that it had used a new solid fuel engine and also conducted operational tests of a mobile warhead.

KCNA did not disclose details about the engine tested on the 19th, nor did it explain the type of technology tested.

The report pointed out that North Korea is developing an intercontinental ballistic missile capable of striking the United States. (Compiled by Hu Xue)

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China-Singapore, Beijing, July 16 (Reporter Sun Zifa) Springer Nature’s professional academic journal “Nature Astronomy” recently published a planetary science paper saying that researchers have discovered a potentially accessible underground tunnel originating from an open pit on the moon. Evidence of tunnel. The results of this study have enhanced people’s understanding of lunar geology and may become an ideal location for a lunar base, thus potentially serving as a refuge in future manned missions on the lunar surface.

The paper said that more than 200 craters known as skylights have been discovered on the lunar surface, some of which were formed after the collapse of underground lava tubes. Accessible lava tubes or channels may provide a warmer environment than the lunar surface, but it has previously been uncertain whether they can lead to large underground caves.

In this study, co-authors of the paper, LC and LB of the University of Trento in Italy, and collaborators, analyzed radar data from the Lunar Reconnaissance Orbiter and found that radar brightness on the west side of the crater increased. Jinghai Crater is the deepest known crater on the moon, with a radius of approximately 100 meters, with vertical or overhanging walls and a sloping bottom.

The authors of the paper used radar images to conduct simulations and found that these observations could be explained by the presence of a cave void or pipe spreading from the west side of the bottom of the pit. They estimate that the pipeline is located at a depth of 130-170 meters, 30-80 meters long and about 45 meters wide. The cave may be flat or inclined at an angle of up to 45 degrees and may be accessible.

The authors concluded that the pipes or channels discovered in this study may be a common feature under the lunar plains, and that the Jinghai Pit and its channels may be an ideal site for a potential lunar base. The method used in the study may also be suitable for evaluating and characterizing other lunar craters to discover more channels.

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According to a Reuters report on March 18, the EU’s High Representative for Foreign Affairs and Security Policy Josep Borrelli said on the 18th that foreign ministers of EU member states strongly support using the proceeds of Russian frozen assets to help Ukraine.

Reported that after a meeting with foreign ministers of EU member states in Brussels, Borelli said: I am not saying that everyone agreed, but there is a strong consensus to make this decision.

According to Bloomberg News reported on the 18th, the European Union is ready to legislate to transfer profits generated by frozen Russian sovereign assets to Ukraine as early as July this year.

Reported that the proposal requires the support of all EU member states and will impose a windfall tax on profits from frozen assets. The EU plans to use the resulting funds are estimated to be about 3 billion euros a year to supply weapons to Ukraine and promote Ukraine’s defense industry.

According to reports, about 260 billion euros of assets of the Russian Central Bank have been frozen by the G7, the European Union and Australia. Most of the frozen assets are securities and cash, of which more than two-thirds are frozen in the EU.

The report pointed out that this funding has become particularly critical as Ukraine faces an ammunition shortage problem and the approximately US$60 billion in aid planned by the United States still cannot be passed by Congress. (Compiled by Hu Xue)