Electric melting furnaces are mainly categorized into three types based on their heating methods: First, **Induction Electric Melting Furnaces**, which generate eddy currents in metal materials through high-frequency/medium-frequency electromagnetic fields to produce heat. They feature high heating efficiency (up to 70%-90%) and fast temperature rise, making them suitable for smelting ferrous metals, copper, aluminum, and other non-ferrous metals. Second, **Resistance Electric Melting Furnaces**, which rely on heating elements such as resistance wires and silicon carbide rods to generate heat. They offer high temperature control precision (with an error margin of ±1℃) and are mostly used for melting and sintering non-metallic materials like glass and ceramics. Third, **Arc Electric Melting Furnaces**, which generate ultra-high temperatures (over 2000℃) through arcs between electrodes and materials, applicable for smelting large-scale steel or special alloys.

In terms of application scenarios, electric melting furnaces cover both industrial and scientific research fields: Industrially, they are used for metal alloy preparation, glassware production, and ceramic green body firing; in scientific research, small-sized electric melting furnaces can simulate high-temperature environments to support research on material properties.

Compared with fuel-fired furnaces, electric melting furnaces produce no exhaust gas, enable precise temperature regulation, and reduce heat loss. They not only meet the requirements of green industry but also improve the stability of product quality, making them one of the mainstream devices in the current high-temperature processing field. Moreover, they are further developing toward intelligence and miniaturization.

Qinhuangdao Xingao Glass Technology Co., Ltd. was established in 2016 with a registered capital of 3 million yuan. Specializing in the research and development of new glass melting technologies and the manufacturing of equipment, we can provide users with services such as the design, production and installation of glass electric melting

furnaces, electric fluxing, electric heating, melting furnace bubbling devices, and automatic batching systems.

The company has 30 employees, including 3 senior engineers, 4 engineers and 5 technicians. They are composed of professionals in glass furnaces, glass technology, glass machinery, automatic control and other fields. The company has strong technical strength and rich professional experience.

Qinhuangdao is renowned as the "Glass City of China", and Yaohua Group is even hailed as the cradle of China's glass industry. Relying on the resource advantages of the local national-level design institute and the glass city, the company adheres to independent innovation and promotes technological upgrading.

The company was certified with ISO9001 for quality, environment and occupational health in 2018. In 2025, it was approved as a technology-based enterprise and holds five glass technology patents.

The company adheres to the concept of "technological leadership and customer first", and has won market trust with first-class products and quality services.