Copper is a versatile and important material in various industries. It is a soft, malleable, and ductile metal that is a good conductor of electricity and heat. Copper has been used by humans for thousands of years, and it still plays a critical role in modern society.
One of the main advantages of copper is its excellent electrical conductivity. It is used extensively in electrical and electronics applications, such as wiring, power transmission, and printed circuit boards. Its thermal conductivity is also very high, making it suitable for heat exchangers and cooling systems.
Copper is also important in the construction industry. Its corrosion resistance, durability, and aesthetic appeal make it an ideal material for roofing, gutters, and plumbing systems. Copper is also used in architectural features such as decorative panels, wall cladding, and sculptures.
Copper is also an essential material in the manufacturing of various products. Its mechanical properties and workability make it ideal for manufacturing pipes, tubes, wires, and other hardware components. Copper alloys, such as brass and bronze, are used to make a wide range of products, including musical instruments, jewelry, and coins.
Moreover, copper is an environmentally friendly material. It is completely recyclable, and recycled copper can be used to manufacture new products without any loss of quality. Recycling copper also saves energy and reduces the need for mining, thereby conserving natural resources and reducing greenhouse gas emissions.
In conclusion, copper is a versatile material with many advantages. Its excellent electrical and thermal conductivity, durability, workability, and recyclability make it an essential material in various industries.
Signed Xi'an Xiwu Er Electronic Information Group Co., Ltd., LC-80 high and low temperature test chamber
Xi'an Xiwu Er Electronic Information Group Co., Ltd. is a professional manufacturer of large-scale state-owned large-scale electronic components. It mainly produces nearly one thousand kinds of specifications and models of inductor components, sensitive components, ceramic capacitors and electronic special equipment. The main products include:
※Zinc oxide varistor for overvoltage protection and various lightning protection devices (SPD);
※ PTC thermistor and sensor for overheating and over-current protection degaussing;
※ceramic capacitor;
※Color, black-and-white TV and monitor with flyback transformer;
Its leading products, zinc oxide varistor and display and color TV sets, are the leading domestic production scale. The company has the largest production line of zinc oxide varistor in China. The main equipments are imported from Japan, the United States, Switzerland, Belgium, Taiwan and other countries. The production technology has reached the international advanced level, and has a complete lightning detection equipment: 120KA 8/20 Lightning impulse device, phase-tracking combined wave lightning generator, 2ms square wave impact generator.
In 1994, the company took the lead in obtaining the ISO9002 quality system certificate issued by the DNV certification body in the same industry in China. Has obtained ISO9001 certification and ISO14001 environmental quality system certification. The main products have passed the US UL, Canadian CSA, German VDE and TUV certification, as well as China CCEE, CQC and other certifications, and have won 27 ministry, provincial and municipal quality product awards and provincial and municipal brand-name product honors, not only in the domestic market. It also exports to the United States, Japan, Italy, Germany, Singapore, South Korea, India, Indonesia, South Africa, Iran, Hong Kong and other countries or regions.
The company has strong technical strength and a total of more than 600 professional and technical personnel, including hundreds of senior engineers and engineers, specializing in scientific research, development, technical services, etc., and can design and develop products according to the special requirements of users.
Talent advantage:
The company has 5 master's degree technical and management talents, and a large number of middle and senior technical personnel and management personnel, making significant contributions to the company's management and technology. Twelve comrades have been rated as outstanding experts at the municipal level and above, and they are in a leading position in their respective fields.
Technical content:
The company is a municipal high-tech enterprise, with a provincial-level technical center. It has nearly 20 years of development and manufacturing technology and experience in leading product flyback transformers and varistors. It has 5 patented technologies and 4 national key new products. , is a well-known enterprise in the same industry in China.
Management modernization:
Through continuous development and growth, the company has formed a unique management system, which is the fundamental guarantee for the continuous development of enterprises under the state-owned system. The company was first certified in the Northwest region with ISO9000, and promoted more advanced ERP management tools in the same industry to standardize and improve corporate management and market resilience.
Quality assurance system:
The company first passed the ISO9002 certificate audited by DNV in 1994, and successfully changed the version in 2000, and obtained the ISO9001 certificate. The quality assurance system has been continuously consolidated and improved over the years, which has greatly improved the quality assurance. At the same time, it also successfully passed the ISO14001 environmental quality certification.
Advanced and reliable testing methods:
Our company is a secondary measurement unit, independent development, measurement unit. The company has two specialized test laboratories, with domestic advanced testing equipment, scientific testing methods, and accurate monitoring of product reliability and consistency.
Excellent quality:
Continuous technological transformation, product development, technological innovation, and quality improvement work make the main technical indicators of the products and the reliability of their performances at the domestic and international leading level. The main performance indicators are the same as those of internationally renowned companies such as Panasonic and Siemens. Excellent quality for GE, LG and other companies supporting services.
Market size:
The company's process equipment is in the leading position in the world and is now the largest production base of sensitive devices in China.
Manufacturing capacity:
The company's leading product varistor is currently the largest production line in China. The annual production capacity is only 500 million, and the annual production capacity of flyback transformer is 6 million.
In 1976, Xi'an Radio 2 Factory was established. Specialized in the production of various transformers, coils and other components for the original Xi'an Radio 1 plant, and later developed the Yellow River Plant, Chengdu Radio Third Factory and other users.
In 1985, it introduced the process technology of an integrated flyback transformer production line with an annual output of 500,000 color and black-and-white TV sets and five specifications. It has been selling well for 20 consecutive years, supporting the sustained and rapid development of the company.
In 1989, he jointly developed the zinc oxide varistor project with the Insulation Research Laboratory of Xi'an Jiaotong University.
In 1991, the production line of varistor with the largest production scale and annual output of 12 million was built. And for the first time, it has obtained UL certification and CUL certification.
In 1992, he became the vice chairman unit of the Sensitive Components and Sensors Branch of the National Electronic Components Industry Association, and the deputy director of the Voltage Sensitive Society. In the same year, a thermal laboratory was set up to conduct basic research on thermal products.
In 1994, the first West of the West No. 2 Plant passed the ISO9001 certification.
In 1996, the domestic industry's varistor production ranked first. In the same year, a series of thermistor pilot production lines were built to produce various types of thermistors (degaussing \\ overcurrent \\ delay, etc.).
In 1997, the first domestic development of lightning protection components (SPD), the merger of high-voltage ceramic capacitor factory established high-voltage capacitor company.
In 1998, SPD products obtained the production and sales license of the Ministry of Public Security.
In 2000, varistor and heat were listed as national debt support technical reform projects by the State Economic and Trade Commission, with an investment of 60 million yuan to import advanced key equipment from South Korea, Germany, Taiwan, etc., and to introduce relevant software technology from Japan.
In 2002, it signed a technology transfer and OEM processing agreement with Hokuriku.
In 2004, it was certified by CQC and SGS.
In 2005, the SPD semi-automatic assembly line was built, and two PTC assembly lines and ceramic capacitor semi-automatic production lines were built.
In 2006, it obtained ISO 14001 certification, and the SPD chip passed UL certification.
In 2007, it obtained TUV certification for SPD products.
In 2008, thermal products obtained VDE certification.
In 2009, it obtained ISO 14001 certification and OHSAS 18000 certification. At the same time, it invested in the testing center and put it into construction according to the national testing and testing center standards. 
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