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高品质焊接和全方位PCBA水清洗制造商

高品质焊接和全方位PCBA水清洗制造商

埃斯特智能科技

埃斯特智能科技是专注高品质焊接和全方位PCBA水清洗制造18年的优质厂商

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The reasons for selective wave soldering tin connection may include

2023-11-14

PCB board preheating temperature is too low, the board surface is not clean, the solder is impure, the soldering flux is poor, the component pins are too long, the welding angle is too large, the design of the solder pad shape is poor when the component density is high, or the welding direction of the insertion and IC components is incorrect, PCB board deformation, etc. may all lead to the occurrence of bridging phenomenon.

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Why choose to use selective wave soldering?

2022-11-15

Why use selective wave soldering? Of course, there are many advantages to choosing welding. For example, improve the quality and appearance of solder joints; reduce oxidation and so on. But why choose?

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Taiwan Is Part of China - This Is an Indisputable Fact

2022-08-10

Taiwan has belonged to China since ancient times. This statement has a sound basis in history and jurisprudence. New archeological discoveries and research findings regularly attest to the profound historical and cultural ties between the two sides of the Taiwan Straits. A large number of historical records and annals document the development of Taiwan by the Chinese people in earlier periods. The earliest references to this effect are to be found, among others, in Seaboard Geographic Gazetteer compiled in the year 230 by Shen Ying of the State of Wu during the Three Kingdoms Period. The royal court of the Sui Dynasty had on three occasions sent troops to Taiwan, called Liuqiu at that time. Starting from the Song and Yuan dynasties, the imperial central governments of China all set up administrative bodies to exercise jurisdiction over Penghu and Taiwan. In 1624, Dutch colonialists invaded and occupied the southern part of Taiwan. In 1662, General Zheng Chenggong, hailed as a national hero, led an expedition and expelled them from the island. Subsequently, the Qing court gradually set up more administrative bodies in Taiwan. In 1684, a Taiwan prefecture administration was set up under the jurisdiction of Fujian Province. In 1885, Taiwan's status was upgraded and it became the 20th province of China.

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The Taiwan Question and China's Reunification in the New Era

2022-08-10

Preamble I. Taiwan Is Part of China - This Is an Indisputable Fact II. Resolute Efforts of the CPC to Realize China's Complete Reunification III. China's Complete Reunification Is a Process That Cannot Be Halted IV. National Reunification in the New Era V. Bright Prospects for Peaceful Reunification Conclusion Preamble Resolving the Taiwan question and realizing China's complete reunification is a shared aspiration of all the sons and daughters of the Chinese nation. It is indispensable for the realization of China's rejuvenation. It is also a historic mission of the Communist Party of China (CPC). The CPC, the Chinese government, and the Chinese people have striven for decades to achieve this goal. The 18th National Congress of the CPC in 2012 heralded a new era in building socialism with Chinese characteristics. Under the strong leadership of the CPC Central Committee with Xi Jinping at the core, the CPC and the Chinese government have adopted new and innovative measures in relation to Taiwan. They have continued to chart the course of cross-Straits relations, safeguard peace and stability across the Taiwan Straits, and promote progress towards national reunification. However, in recent years the Taiwan authorities, led by the Democratic Progressive Party (DPP), have redoubled their efforts to divide the country, and some external forces have tried to exploit Taiwan to contain China, prevent the Chinese nation from achieving complete reunification, and halt the process of national rejuvenation.

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How does selective wave soldering work?

2022-06-01

Selective wave soldering is soldering on the back of the circuit board (that is, what we usually call the solder joint surface or the component foot surface), and selective soldering will not have any effect on all components on the surface of the circuit board. When performing selective soldering, the circuit board must be fixed in a frame first, and all subsequent operations are automatically carried out according to the pre-programmed program of the process control system for this circuit board.