Vacuum furnaces are widely used in various fields

Vacuum Heat Treatment Furnace Introduction

Vacuum heat treatment is an advanced process that relies on a closed vacuum environment to optimize the internal structure of metal materials by precisely controlling temperature, pressure and gas composition. Its core value lies in using the low pressure characteristics of vacuum to completely block the contact between materials and air, eliminating quality problems that are difficult to avoid in traditional heat treatments such as oxidation and decarburization from the source, and at the same time using gradient temperature control technology to achieve directional improvement of material properties, providing customized solutions for the special needs of different industries.

Application of vacuum heat treatment furnace in electronics industry

In the electronics industry, vacuum heat treatment provides reliable protection for precision electronic components. In the production of lead frames for semiconductor packaging, copper alloy strips are placed in a vacuum annealing furnace, kept at 450°C and 10-⁴Pa for 3 hours, and slowly cooled to room temperature. The conductivity of the treated copper strips increased by 5%, the yield strength decreased by 10%, and it was easier to perform subsequent precision stamping. There were no oxidation stains on the surface, which ensured a good electrical connection between the lead frame and the chip. In addition, vacuum heat treatment can effectively reduce the internal stress of the material and improve product stability. In the manufacture of optical components, the transmittance and anti-reflection properties of the lenses treated with this technology are significantly enhanced, and the service life is extended by 30%, which greatly improves the overall performance of the optical instrument.

Application of vacuum heat treatment furnace in medical field

In the field of medical devices, vacuum heat treatment plays an important role in improving product safety and performance. The stainless steel scissors used in surgical instruments are vacuum bright annealed, kept at 800°C, 10⁻³Pa vacuum environment for 1.5 hours, and slowly cooled, which not only maintains the mirror finish of the surface, but also eliminates internal stress, significantly improving the elasticity and corrosion resistance of the scissors. Tests in a simulated body fluid environment reduced the corrosion rate by 60%, avoiding the precipitation of metal ions caused by corrosion during use and improving biocompatibility.

Application of vacuum heat treatment furnace in new energy equipment

In the field of new energy equipment manufacturing, the application of vacuum heat treatment technology has solved many problems. In the production of the main shaft of wind power equipment, the 42CrMo alloy steel used in the main shaft must have extremely high comprehensive mechanical properties. When using vacuum conditioning treatment, the main shaft is heated to 860℃ under a vacuum degree of 10⁻³Pa, kept warm for 4 hours, cooled to 300℃ at a rate of 15℃/s, and then tempered at high temperature. The tensile strength of the treated main shaft reaches more than 1000MPa, the impact toughness is increased to 80J/cm², and the performance deviation along the length of the main shaft is controlled within 5%.

Application of vacuum heat treatment furnace in shipbuilding industry

In the shipbuilding industry, vacuum heat treatment provides strong support for improving the corrosion resistance of marine equipment. The copper alloy castings of ship propellers are susceptible to corrosion in seawater environments. The vacuum degassing heat treatment process is used to place the castings in a 10⁻⁴Pa vacuum furnace, heat them to 700℃ and keep them warm for 6 hours, which can effectively remove hydrogen and oxygen impurities inside the material. After testing, the treated propeller was immersed in a simulated seawater environment for 1000 hours, and the corrosion rate was reduced by 60%, the surface finish was maintained well, the attachment of marine organisms was reduced, and the navigation efficiency of the ship was improved.

Application of vacuum heat treatment furnace in rail transportation

In the field of rail transportation, vacuum heat treatment makes key components more resistant to wear and impact. The wheelset axle box bearings of high-speed railways are treated with vacuum nitriding. In a vacuum environment of 520℃ and 10⁻²Pa, a mixed gas of ammonia and nitrogen is introduced and kept warm for 8 hours. A 50μm thick nitriding layer is formed on the surface of the treated bearing roller, the hardness reaches HV1000, and the friction coefficient is reduced by 20%.

Vacuum Heat Treatment Furnace