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Since its establishment, Kunhong Technology has always focused on innovation and manufacturing in the fields of vacuum and metal pressure vessels. It has achieved remarkable results in the research and development of vacuum application equipment, vacuum acquisition equipment, non-standard vacuum equipment, and pressure vessel products.
Why choose us
Solution
We are committed to providing high-performance and high-quality solutions. From design to production, Kunhong Technology strictly controls every aspect and provides customers with diverse and personalized products to meet different needs, winning high recognition from users.
Widely used
Our products are widely used in aerospace, new energy vehicles, power, metallurgy, petrochemical, shipbuilding, military and other high-end fields, providing strong support for the development of related industries.
Customer Service
Our customer service team is committed to providing exceptional support and addressing any concerns promptly. We prioritize clear communication and proactive problem-solving to ensure a seamless experience for every client.
User-friendly design
Benefit from easy operation and maintenance that increases user-friendliness and reduces downtime.
Energy efficiency
Maximize energy efficiency with advanced insulation and cold wall construction that minimizes surface loss.
Fast heating and cooling
Fast heating and cooling of small and large batches, shortening cycle times, improving process efficiency and throughput.
Precise process control
Perform accurate process cycles by using both furnace and batch thermocouples for precise temperature control.
Low maintenance costsbenefit from the optimized furnace design based on years of experience to ensure low maintenance costs combined with efficient performance.
Full conformity
Compliance with applicable international standards such as cqi-9, nadca, nadcap, ams 2750, etc.
The heating elements of vacuum furnaces are divided into metals and nonmetals.
Metal heating elements are usually divided into two types: one is precious metals, such as molybdenum, platinum, tungsten, tantalum, etc., and the other is general metals, such as nickel-chromium heat-resistant alloy, iron-chromium aluminum alloy, molybdenum-tungsten alloy, etc.
Non-metallic heating elements include two kinds of graphite and compound. The compounds are silicon carbide, molybdenum silicide, molybdenum oxide two and so on. Silicon carbide is easy to bond and decompose at high temperature, while two molybdenum oxide softens at 1300 degrees. Only graphite has the characteristics of good machinability, high temperature resistance, good resistance to quench and heat, good plasticity, large radiation area, good resistance to thermal shock and so on, so it is suitable for making heating elements.
Vacuum furnace chamber
The vacuum furnace chamber is mainly divided into a stainless steel chamber, ceramic fiber chamber, molybdenum foil chamber, and graphite chamber. The maximum temperature ranges from 750°C to 2200°C.
Vacuum furnace heating elements
Vacuum furnace heating elements are mainly divided into resistance wire, silicon carbon rod, molybdenum wire and rod, silicon molybdenum rod, graphite, induction coil, etc. The maximum temperature ranges from 750℃ to 2200℃.
Temperature control system
The temperature control system of the vacuum furnace is mainly composed of thermocouples (temperature measurement) and temperature controllers (temperature control). It is mainly divided into PID programmable control, touch screen control, and PLC fully automatic control.
Vacuum System
The vacuum system consists of vacuum valves, mechanical pumps, diffusion pumps and Roots pumps according to the required vacuum level. The maximum vacuum level is generally 7×10-3 Pa.
Water cooling system
According to the size of the furnace chamber, a matching water cooling system is required to ensure that the vacuum furnace can work properly.
Sealed furnace shell
The furnace shell casing must be well sealed to ensure that the designed vacuum level can be achieved.
Common types of vacuum furnaces
Resistance heating furnaces: These use electrical resistance heating elements to generate heat.
Induction heating furnaces: These use induction to generate heat in the material.
Radiation heating furnaces: These use radiation from heating elements or plasma to heat the material.
Chamber design
Vacuum furnaces can be classified based on the design of the vacuum chamber. Some common types of vacuum furnaces are
Vertical vacuum furnaces
The material is loaded into the furnace on a vertical plane.
Horizontal vacuum furnaces
The material is loaded into the furnace on a horizontal plane.
Bottom-loading vacuum furnaces
The material is loaded into the furnace from the bottom.
Producing high-strength, corrosion-resistant components capable of withstanding extreme mechanical stresses and temperatures.
Hardening gears, bearings, and other parts exposed to high loads to ensure strength and durability.
Treating implants and surgical instruments that require flawless surfaces and high biocompatibility.
Manufacturing precision tools for machining metals and other materials, ensuring the necessary hardness and surface quality.
As one of the leading vacuum furnace manufacturers in China, we warmly welcome you to wholesale high-grade vacuum furnace made in China here from our factory. All customized products are with high quality and low price.
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