The MS series vacuum welding furnace is a professional industrial-grade vacuum welding furnace tailored for high-reliability welding processes. Why Choose a Vacuum Welding Furnace? At present, the mainstream welding processes in the industry use tools and equipment such as soldering irons, wave soldering machines and reflow ovens, which have been upgraded to nitrogen-protected lead-free reflow ovens with the addition of nitrogen protection. However, for welding fields with stringent requirements (e.g., military products and industrial high-reliability products), even nitrogen protection fails to meet the required product reliability standards. Applications demanding ultra-high circuit welding reliability—such as material testing, chip packaging, power equipment, automotive products, train control systems, aerospace and aviation systems—require the elimination or minimization of voids and oxidation in welding materials. The vacuum welding furnace is the ideal solution for effectively reducing void rates and oxidation of solder pads or component pins. Achieving high-quality welding necessitates the use of a vacuum welding furnace, a cutting-edge technological innovation by SMT welding experts in Germany, Japan, the United States and other developed countries. Industry & Application Fields Ideal for: R&D, process development and production with low to high capacity; the optimal choice for high-end R&D and manufacturing in military enterprises, research institutes, universities, aerospace and aviation fields. Core Applications: Defect-free welding and high-quality flux-free welding of chip-substrate and package lid-baseplate assemblies, applicable to IGBT packaging, solder paste processes, laser diode packaging, hybrid integrated circuit packaging, package lid sealing, MEMS packaging and vacuum packaging. Vacuum welding furnaces have become essential equipment for high-end manufacturing in the military, aerospace and aviation industries of developed countries in Europe and America, and are widely used in chip packaging and electronic welding fields. Core Performance & Features Welding in a true high-vacuum environment: Ultimate vacuum degree ≤5Pa (optional turbomolecular pump for vacuum up to 10⁻⁴Pa); operating vacuum: 10–15Pa. Realizes flux-free welding for high-purity and high-reliability solder joints. Equipped with an industrial-grade computer and professional software control system for an intuitive and seamless operating experience. Industry-leading 40-segment programmable temperature control system for customizing optimal welding process curves. Adopts circulating water cooling technology for rapid and uniform temperature reduction. Configured with two sets of in-situ temperature measurement systems for precise detection of temperature uniformity in the welding area; temperature control accuracy ≤±1℃, temperature uniformity ≤±2% within the effective working area. Compatible with multiple atmosphere environments: formic acid, nitrogen, and optional hydrogen-nitrogen mixed gas (95% nitrogen), meeting the requirements of various welding processes. Maximum working temperature of 450℃ (higher temperature optional), satisfying all soft soldering process requirements. An observation window is installed on the furnace chamber top cover for real-time process monitoring. Calibration-free design eliminates additional calibration costs during long-term operation. Standard Configuration Vacuum welding furnace × 1 unit Temperature control system × 1 set Temperature measurement system × 2 sets Vacuum system × 1 set Top heating system × 1 set Alloy heating platform × 1 set Water cooling system (including industrial water chiller) × 1 set Nitrogen atmosphere protection system × 1 set Formic acid atmosphere system × 1 set Vacuum welding furnace control software system × 1 set Industrial computer × 1 unit Heating tube (spare parts) × 3 pcs Cooling air pipe (spare parts) × 2 pcs Optional Configuration Corrosion-resistant diaphragm pump (vacuum up to 10mbar) Rotary vane pump (for vacuum up to 10⁻³mbar) Turbomolecular pump system (for vacuum up to 10⁻⁶mbar) Mechanical dry pump Component fixture 110V power supply system Hydrogen gas system Premium Performance & Reliability The main electrical components and temperature control design adopt advanced industrial-level configurations with excellent temperature uniformity, making the furnace suitable for the soldering of CSP and BGA components. The furnace liner features an energy-saving design with a heat-insulating and airtight structure, ensuring superior thermal insulation and low power consumption. The average power consumption of reflow ovens in the industry is 15 kW/h, while this furnace only consumes 8.5 kW/h on average, achieving a 40% energy reduction. Calculated based on 24-hour daily operation, it can save more than 50,000 RMB in energy costs annually. The self-developed software system is stable, reliable and powerful, enabling real-time online temperature measurement and monitoring of workpieces, real-time data analysis, as well as data storage and printing functions. Each temperature zone adopts forced independent circulation and independent PID control, with separate upper and lower heating methods, ensuring accurate and uniform temperature in the large heat capacity furnace chamber. Rapid temperature rise: The warm-up time from room temperature to operating temperature is ≤20 minutes, greatly improving production efficiency. Imported high-temperature and high-speed motors ensure stable air supply with low vibration and low noise; aluminum alloy guide rails undergo high-temperature processing to prevent deformation during long-term operation. The furnace is equipped with a power-off protection function, with a built-in computer and transmission UPS to ensure the normal output of workpieces after power failure and avoid damage. The furnace liner is made of stainless steel, featuring corrosion resistance and no slag falling, effectively protecting the cleanliness of workpieces during the soldering process. It supports automatic real-time monitoring and display of equipment working status for easy operation and maintenance. Custom-designed wind wheels ensure stable air speed; the hot air speed of the furnace body is frequency-converted and adjustable, with controllable thermal shock degree. Efficient forced air cooling: Adopts a pressurized forced air cooling structure with an extended cooling zone for excellent cooling effect. Circulating water cooling: Cooled by an external industrial water chiller for uniform and rapid cooling; the cooling water temperature is adjustable, and the cooling zone temperature is displayed in real time. Equipped with a nitrogen flow meter for real-time nitrogen flow monitoring and an oxygen analyzer for real-time oxygen content detection; the software automatically records oxygen concentration changes for full process traceability. A dedicated water cooling module is added to the furnace chamber seals to reduce operating temperature, extend service life, ensure excellent sealing performance and lower replacement frequency. 
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