Duplex vacuum oven: technical analysis, application advantages and industry development

In the process of modern industrial production and scientific research experiments, the requirements for material processing and sample drying are becoming more and more stringent. Ordinary environment, often due to oxygen, moisture and impurities in the air interference, it is difficult to meet the demand for high precision. Duplex vacuum oven by virtue of its unique vacuum environment design and duplex synergistic mode of operation, become the key equipment to solve such problems. xvacuum technology (jiangsu) co., ltd. by virtue of the deep accumulation of vacuum technology and the ability of sustained innovation, in the duplex vacuum oven R & D and manufacturing field of achievements, for the development of a number of industries to provide a strong support.

First, the working principle and structure composition of duplex vacuum oven

(A) the core working principle

The working principle of duplex vacuum oven is based on the physical properties of the vacuum environment and the law of heat transfer. In the conventional environment, the material surface and internal adsorption of water, gas and other impurities, due to intermolecular forces and external air pressure binding, difficult to quickly detach. In the vacuum environment, with the significant reduction in air pressure, the vapor pressure on the surface of the material is greater than the outside air pressure, so that the moisture and gas molecules get enough energy to break free from the bondage, accelerate the evaporation and escape. At the same time, duplex vacuum oven is equipped with a heating system, through heat conduction, heat radiation and other ways, to provide heat for the material, further enhance the activity of molecules, to speed up the drying and treatment process. The two stations can work independently or synergistically. When working independently, each station can set unique parameters of vacuum, temperature and processing time according to the characteristics and processing requirements of different samples to realize personalized processing; when working together, it can carry out efficient and continuous processing for large quantities of the same type of samples, which significantly improves work efficiency.

(ii) Structure and composition

Duplex vacuum oven is mainly composed of vacuum system, heating system, duplex chamber, control system and sealing device. The vacuum system is one of the core components of the equipment, usually including vacuum pump, vacuum piping, vacuum valves and vacuum measuring instruments. Vacuum pump as the core component, through the multi-stage pumping process, the cavity inside the gas pressure quickly down to the required level, the common combination of vacuum pumps, including rotary vane mechanical pumps and turbo molecular pumps, the former is used for rough pumping, quickly reduce the gas pressure, the latter is used for fine pumping, to achieve a high degree of vacuum; vacuum piping and valves are responsible for the transmission and control of the gas to ensure that the pumping process of the smoothness and the cavity of the sealing; vacuum measuring instrumentation The vacuum measuring instrument monitors the vacuum level in the chamber in real time, providing accurate data feedback for the operator. The heating system adopts high-precision heating elements, such as resistance wire, heating plate, etc., and is equipped with intelligent temperature sensors. The heating elements are evenly distributed inside the chamber to ensure uniform heat transfer; the temperature sensor can sense the temperature change in real time and feed back the data to the control system to realize the precise regulation of the temperature, and the precision of temperature control can reach ±1℃, which can satisfy the strict requirements of different processes on the temperature.

Duplex chamber is the key area for placing samples, each station is equipped with an independent sample tray and bracket, which is convenient for placing and removing samples. The chamber is made of high-strength, high-temperature resistant stainless steel, which has good corrosion resistance and thermal stability; meanwhile, the interior of the chamber is specially treated with a smooth surface, which is easy to clean and prevents the samples from being contaminated. The control system adopts advanced programmable logic controller (PLC) or computer control system, and the operator can intuitively set the parameters of vacuum degree, temperature and processing time through the human-machine interactive interface, such as touch screen or computer terminal. The control system can automatically coordinate the work of the vacuum system and the heating system to realize the automatic operation of the equipment; it also monitors, records and analyzes the data in the operation process in real time, and in the event of abnormalities, such as over-temperature and substandard vacuum, it will timely alarm and take corresponding protective measures to ensure the safety of the equipment and samples. Sealing device is the key to ensure the vacuum environment. The duplex vacuum oven adopts special vacuum sealing materials, such as fluorine rubber sealing ring, metal sealing gasket, etc., and combines with precise sealing structure design to ensure that the chamber can still maintain good sealing under high temperature and vacuum state, preventing the penetration of outside air.

Second, the application areas of duplex vacuum oven

(A) electronic and electrical industry

In the field of electronic and electrical manufacturing, duplex vacuum oven has a wide range of indispensable applications. Electronic components, such as chips, circuit boards, capacitors and resistors, etc., the cleanliness of the production environment and the degree of dryness is extremely high. In the process of chip manufacturing, vacuum drying is required before chip encapsulation to remove the moisture adsorbed on the surface and inside the chip. If moisture remains, in the subsequent high-temperature welding and use of the process, may lead to chip cracks, short circuits and other problems, seriously affecting the performance and service life of the chip. Dual-station vacuum oven can dry the chips quickly and thoroughly by precisely controlling the vacuum degree and temperature, while the two stations can handle different batches or different types of chips separately to improve production efficiency. For circuit boards, after soldering and assembly, vacuum drying is also required to remove flux residue and moisture to prevent short circuit, corrosion and other failures due to moisture during the use of circuit boards. Dual-station design allows the drying of circuit boards to realize batch operation to meet the needs of mass production.

(B) the development and production of new materials

R & D and production of new materials in the process, the material treatment process is extremely demanding. The duplex vacuum oven provides an ideal environment for the synthesis, drying and modification of new materials. In the preparation of nanomaterials, nanoparticles are highly susceptible to adsorption of moisture and impurities in the air, affecting their properties and stability. Through the vacuum drying treatment of the duplex vacuum oven, the moisture and impurities on the surface of nanoparticles can be effectively removed to maintain the properties of nanomaterials. The two stations can be used for the treatment of nanomaterials under different formulations or process conditions, which is convenient for researchers to carry out comparative experiments and speed up the R&D process. For new composite materials, in the process of molding and curing, it is necessary to remove the internal air bubbles and moisture under vacuum environment to improve the density and strength of the materials. Duplex vacuum oven can accurately control the change curve of temperature and vacuum according to the characteristics of composite materials to ensure the quality of composite materials. Meanwhile, its duplex design can meet the processing needs of composite material samples of different sizes and shapes.

(C) Aerospace field

The aerospace field requires high quality and reliability of components, and any small defects may lead to serious consequences. Duplex vacuum ovens are used for drying, heat treatment and vacuum encapsulation of aerospace components. For example, turbine blades for aircraft engines and seals for spacecraft need to be vacuum dried during the manufacturing process to remove internal moisture and gases and to prevent deformation and rupture under extreme environments such as high temperature and high pressure. The dual-station design enables the processing of these critical parts to be carried out simultaneously, improving production efficiency and shortening the manufacturing cycle. In the aging test of aerospace materials, the duplex vacuum oven can simulate the vacuum and temperature environment in space, carry out long-time aging experiments on materials, detect the performance changes of materials under extreme conditions, and provide an important basis for the selection and optimization of materials.

(D) scientific research experiment field

Scientific research experiments require high flexibility and accuracy of equipment. The duplex vacuum oven provides a flexible and diversified experimental platform for researchers. In chemical experiments, for some air-sensitive chemical reactions, they can be carried out in a vacuum environment to avoid reactants reacting with oxygen and moisture in the air and affecting the experimental results. The two stations can be set up with different reaction conditions, such as temperature, vacuum and reaction time, which is convenient for researchers to carry out comparative experiments and explore the effects of different conditions on the reaction. In biomedical research, the duplex vacuum oven can be used for drying and preserving biological samples. Biological samples, such as proteins and cells, are easy to deteriorate and inactivate in ordinary environment. Through vacuum drying treatment, the preservation time of the samples can be prolonged, while maintaining the biological activity of the samples. Two stations can handle different types of biological samples separately to improve the experimental efficiency.

III. Technical Advantages and Contributions of Principal Vacuum Technology (Jiangsu) Co.

(I) Technical innovation ability

Xinan Vacuum Technology (Jiangsu) Co., Ltd. has shown strong technical innovation strength in the research and development process of duplex vacuum oven. The company's R&D team has thoroughly researched multidisciplinary knowledge of vacuum technology, heat transfer principle and material science, and continuously explored new technologies and processes to improve the performance and quality of the equipment. In terms of vacuum system design, the pumping efficiency and vacuum stability are improved by optimizing the combination method of vacuum pumps and the layout of vacuum pipelines, so that the equipment can reach the required high vacuum in a shorter time; at the same time, a new type of vacuum sealing structure is developed, which further strengthens the sealing of the chamber and reduces the air leakage rate. In terms of heating system innovation, new heating materials and intelligent temperature control algorithm are adopted. The new heating material is characterized by high heating efficiency and long service life, which can heat the chamber quickly and evenly; the intelligent temperature control algorithm combined with advanced temperature sensors realizes precise control and fast response to the temperature, which can flexibly adjust the temperature change curve according to different process requirements to ensure that the samples get good processing results. In addition, the company also applies the Internet of Things technology to the duplex vacuum oven to realize the remote monitoring and data transmission of the equipment, and the operators can view the running status and processing data of the equipment in real time through cell phones, computers and other terminals, so as to facilitate timely adjustment of process parameters and handling of abnormal situations.

(II) Product customization service

Principal Vacuum Technology takes into full consideration of the diversified needs of different industries and customers for duplex vacuum ovens, and provides a full range of customized product solutions. The company's technical staff will deeply understand the customer's specific application scenarios, sample characteristics and special requirements, from the overall structural design of the equipment, functional module configuration to process parameter settings, personalized customization. For customers in the electronics industry, according to their processing needs for chips, circuit boards and other electronic components, customized high-precision temperature and vacuum control system, to ensure that the equipment can meet the stringent processing requirements of electronic components; for customers in scientific research institutions, according to their experimental needs, the design of a flexible layout of the workstation and adjustable sample tray, to facilitate the scientific researchers to carry out different types of experimental operations; for customers in the aerospace For aerospace customers, we customize chambers with high strength, high temperature resistance and high sealing, as well as safety protection systems in line with aerospace standards, to ensure the stable operation of the equipment under extreme conditions. Through customized services, the company is able to provide customers with the most suitable equipment to help them solve practical problems and improve their scientific research and production efficiency.

(III) Perfect after-sales service system

Principal Vacuum Technology attaches great importance to after-sales service and has established a perfect after-sales service system. The company has a professional after-sales service team, which can provide customers with all-round, one-stop service. In the stage of equipment installation and commissioning, technicians will go to the customer site for equipment installation and commissioning to ensure the normal operation of the equipment, and provide systematic training to the customer's operators to make them master the operation method of the equipment, daily maintenance and troubleshooting skills. In the process of equipment use, the after-sales service team regularly visits and maintains the equipment, finds and solves potential problems in time, and prolongs the service life of the equipment. When equipment failure occurs, the after-sales service team can quickly respond by remote diagnosis or send technicians to the scene for maintenance, greatly reducing equipment downtime, to protect the customer's production and experimental work smoothly. In addition, the company also provides customers with equipment upgrading services, according to the development of technology and changes in customer demand, the performance of the equipment to improve and expand the function, so that customers can always use the advanced, reliable equipment.

Fourth, duplex vacuum oven market status and development trend

(A) the current market situation

At present, with the rapid development of electronics, new materials, aerospace and other industries, the market demand for duplex vacuum oven shows a sustained growth trend. In the market, there are many suppliers of duplex vacuum oven, and the competition is relatively fierce. Some well-known international companies with its advanced technology, long brand history and perfect sales and service network, occupy a larger share of the high-end market, mainly serving the aerospace, high-end electronics and other industries that require very high equipment performance and precision. XVACUUM Technology (Jiangsu) Co., Ltd. as a representative of the rapid development of domestic enterprises in recent years, through continuous increase in R & D investment, improve product quality and technical level, in the domestic market has gradually gained a firm foothold, and began to expand to the international market. With in-depth understanding of the local market demand, high cost-effective and good customized services, domestic enterprises have won the recognition of many customers in the electronic and electrical appliances, new materials research and development and other industries, and the market share is gradually expanding.

(B) Development trend

Intelligent upgrade: In the future, duplex vacuum oven will develop in the direction of intelligence. The introduction of artificial intelligence, machine learning and other technologies, so that the equipment can automatically analyze and process data, according to the sample characteristics and process requirements, automatically optimize the vacuum, temperature and processing time and other parameters to achieve intelligent operation. At the same time, intelligent equipment can also realize intelligent diagnosis of faults and predictive maintenance, through the real-time monitoring and analysis of equipment operation data, find out in advance the potential faults of the equipment, and issue timely warnings to remind the operator to carry out maintenance and repair, reduce the failure rate of the equipment and maintenance costs.

High precision and high stability enhancement: With the continuous improvement of product quality requirements in various industries, the precision and stability of duplex vacuum oven has also put forward higher requirements. In the future, the equipment will adopt more advanced sensor technology, control algorithms and manufacturing processes to further improve the precision of vacuum and temperature control to ensure that the equipment maintains stable performance over a long period of time to meet the stringent requirements of aerospace, semiconductors and other high-end fields.

Multi-functional integration and modular design: In order to meet the diversified needs of customers, the duplex vacuum oven will integrate more functional modules, such as gas injection system, humidity control system, online detection system, etc., to realize the multi-purpose of one machine and provide customers with more comprehensive solutions. At the same time, the modularization design concept is adopted, so that the various functional modules of the equipment can be flexibly combined and replaced according to customer needs, which is convenient for equipment upgrading and maintenance and improves the versatility and adaptability of the equipment.

Green environmental protection and energy-saving design: In the background of increasing environmental protection awareness, duplex vacuum oven will pay more attention to green environmental protection and energy-saving design. Adopt energy-saving heating elements and vacuum pumps, optimize the energy management system of the equipment and reduce the energy consumption of the equipment; at the same time, reduce the noise and exhaust emissions generated during the operation of the equipment, adopt environmentally friendly sealing materials and surface treatment processes to achieve sustainable development.