Introduction and principle of plate heat exchange Plate heat exchanger is an important device for large air conditioning system exhaust energy recovery, high temperature flue gas waste heat recovery and computer CPU heat dissipation. The structure has a vacuum liquid filling head and a core body. The vacuum liquid filling head is arranged on both sides of the vacuum liquid filling channel, and one side of the vacuum liquid filling head is provided with a connecting pipe. The core body consists of the vacuum liquid filling channel and several plate fin channels. It is formed by overlapping at intervals.Vacuum heat treatment process of 40Cr steel The vacuum filling channel is provided with partitions up and down, seals are provided on both sides, and fins can be arranged in the channel. The plate-fin channel is provided with partitions up and down, seals are arranged on both sides, and fins are arranged in the channel. Each plate-fin channel is divided into two parallel hot medium channels and cold medium channels by a strip.30CrMnSiA vacuum heat treatment process After assembly, the whole is horizontally inclined or vertically arranged. It is composed of stamped and formed concave and convex stainless steel plates. The concave-convex pattern between the two adjacent plates forms a 180-degree relative combination, so the concave-convex ridge lines between the two plates of the plate heat exchanger form staggered contact points.Atmospheric carburizing and low pressure vacuum carburizing of gears

Energy-saving technology of industrial kilns In industrial production, the heat generated by the combustion of fuel is used, or the electrical energy is converted into heat energy, so as to buy thermal equipment for various processing processes such as smelting, heating, drying, sintering, cracking and distillation of workpieces or materials. It is called an industrial furnace.Pollution causes of precision alloy vacuum furnace Industrial kiln is mainly composed of furnace lining, furnace frame, heating device (such as combustion device, electric heating element), preheater, furnace pipeline, smoke exhaust system, furnace machinery and other parts.Design of Heating Chamber of High Temperature Vacuum Brazing Furnace At present, industrial furnaces are widely used in all walks of life in the national economy, such as metallurgy, building materials, chemicals, light industry, food and ceramics. It has many varieties, high energy consumption and great influence, and is the key equipment for industrial heating. The development of its heating technology and the adoption of high-efficiency energy-saving technology have a great impact on improving product quality, reducing production costs, rationally utilizing energy, improving labor conditions, and realizing civilized production.Vacuum Brazing of Silicon Nitride Ceramics and 45 Steel

Introduction to Mechanical Filters Mechanical filters are generally used in the pretreatment process of water treatment projects, mainly to remove mechanical impurities, colloids, microorganisms, organic matter and active chlorine. Shell materials generally include PE, steel lining, steel spray and steel epoxy anti-corrosion, stainless steel and glass fiber reinforced plastic. According to different process needs, the filter media generally include quartz sand, activated carbon, manganese sand, anthracite and so on. According to the water inlet method, it can be divided into single-flow filter and double-flow filter, which can be used in combination or alone according to the actual situation.Design of Heating Chamber of High Temperature Vacuum Brazing Furnace The single-flow mechanical filter has simple piping and smooth operation. The filtration flow rate is generally 4-50m/h, and the operation period is generally 8 hours. The upper and lower ends of the double-flow mechanical filter are provided with water inlet devices, and the middle part is provided with a water outlet device. The advantages are that the amount of filtered water is large, the decontamination ability is high, and the operation period is long, generally 20 hours.Pollution causes of precision alloy vacuum furnace Mechanical filtration is widely used in the water treatment process, mainly used for water treatment to remove turbidity, reverse osmosis, and the pre-treatment of ion exchange softening and desalination systems, and can also be used for surface water and groundwater to remove sediment. The inlet water turbidity is required to be less than 20 degrees, and the effluent turbidity can reach below 3 degrees. The double-layer filter material is: the upper layer of anthracite is 400mm/1.2～2.5mm; the lower layer of quartz sand is 800mm/0.5～1.2mm.Vacuum Brazing of Silicon Nitride Ceramics and 45 Steel

The inner liner of the tubular electric furnace is made of the lightest high-temperature resistant fiber material in the world. It is composed of two semi-circular furnace bodies. It is easy to open and can be used as a vertical or horizontal type. Or the furnace body can be installed on other work surfaces as required, or it can be integrated with the controller system GWL, and the control system adopts LTDE technology programmable intelligent instrument. Vacuum heat treatment of corrugated spring bayonet connector It has up to 30 sections of heating program function, and can correct the slope and PID function. Just open the power setting program, the machine will work automatically, and it will automatically shut down after work. The instrument is easy to operate, has fast heating speed, adjustable heating speed, light appearance, and its weight is one-fifth of that of ordinary high temperature furnaces.Analysis of carbon content on the surface of carburized parts Normal operation: Turn on the power and press the ↑ key for two seconds to make STOP appear in the SV window. Setting steps: Press the ← key PV to display C01. Press ←↑↓ to set the desired temperature. Press SET key, PV displays t01. Press ←↑↓ to set -1. Wait until you return to the menu (SV shows STOP). Press the ↓ key again for two seconds, the SV will display RUN. At this point, the PV shows a rise in temperature. The SV window HOLD and the set temperature are displayed alternately.Application of low pressure vacuum carburizing

Chain furnace knowledge The chain furnace is a fire-bed furnace with a wide range of applications, with a history of more than 100 years. At present, the capacity of domestic chain furnaces is 240t/h, and our company has achieved 160t/h hot water boilers.Vacuum heat treatment process of 40Cr steel The chain furnace is a typical front-fed fuel boiler, and the grate moves slowly from front to back like a belt conveyor. The fuel descends from the coal hopper and falls on the grate, and travels with the grate. Air is introduced from below the grate from bottom to top, intersecting the direction of fuel supply. When the fuel passes through the coal gate, it is scraped to a certain thickness and then enters the furnace. After the fuel is radiantly heated in the furnace, it enters the combustion stage. 1. Chain belt grate: The shape of the grate pieces is like a link, and the whole grate itself is a wide annular chain belt formed by these "links" in series, and the chain belt is surrounded by the sprocket and supported on the front and rear axles.30CrMnSiA vacuum heat treatment process 2. Beam type grate: The rigid beam is used as the support and series structure of the grate piece. The beam grate is very convenient to replace the grate pieces during operation, and the grate surface is relatively flat, which is extremely durable. The width and length of this grate can be made very large.Atmospheric carburizing and low pressure vacuum carburizing of gears

Introduction of VOD Ladle Refining Furnace Technology VOD type vacuum refining equipment is one of the most widely used out-of-furnace refining equipment in the world. It has many advantages such as simple equipment, low investment, low cost, many types of refined steel, high quality and convenient operation, so it has become an essential refining method for special steel plants.Application of Pressureless Sintering of Silicon Carbide Ceramics VOD ladle refining furnace has many functions such as vacuum degassing, oxygen blowing decarburization, vacuum feeding, argon blowing stirring, non-vacuum temperature measurement and sampling, wire feeding and so on. It can refine bearing steel, alloy structural steel, spring steel, high-quality carbon steel and ultra-low carbon stainless steel. Influence of Reaction Sintering Process on Properties of Silicon Carbide Ceramics Because of its strong vacuum degassing ability, it can ensure that the content of hydrogen, oxygen, nitrogen and carbon in the steel reaches the lowest level, and accurately adjust the composition of molten steel, so that the inclusions can be fully floated, and the cleanliness of the steel can be effectively improved. Because it refines many types of steel and high quality, it can more flexibly adapt to the needs of market competition for users, and can refine the steel types required by the market in time, thereby increasing the economic benefits of the enterprise.Pollution causes of precision alloy vacuum furnace

PLC Control of Industrial Boiler The boiler is one of the important equipments in power plants and other industrial enterprises. Its function is to convert the energy stored in the fuel into heat energy through combustion, and transport it to various equipment in the form of steam or hot water. At present, most of the industrial boilers in our country are controlled manually, or are regulated by a simple instrument and a single-loop system, which wastes a lot of fuel. Vacuum Heat Treatment of Cr12MoV Steel Ceramic Die As a whole, the industrial boiler has many controlled and controlled variables and many disturbance factors, and there is obviously a complex relationship between many parameters. For the complex system of industrial boiler, because the internal energy conversion principle is too complicated, it is difficult to achieve the ideal control effect by conventional control in the past. Therefore, the intelligent control method can obtain better control effect.Analysis of Defects in Vacuum Brazing of Aviation Aluminum Alloy Chassis As an important power equipment, the task of the boiler is to supply qualified steam and make the boiler evaporation meet the requirements. For this reason, the main parameters of the production process must be strictly controlled. Boiler equipment is also a complex control object. The main input variables are load, boiler feed water, fuel amount, desuperheating water, supply air and induced air, etc. The main output variables are drum water level, steam pressure, superheated steam temperature, furnace negative pressure, excess Air, flue gas oxygen content, etc.Analysis of Defects in Vacuum Brazing of Aviation Aluminum Alloy Chassis These variables are related to each other. For example, changes in steam load will inevitably cause changes in drum water level, steam pressure and superheated steam temperature. Therefore, boiler equipment is a multi-input, multi-output and interrelated control object.

The purpose of the fan safety monitoring and management is to automatically detect the changes of vibration, oil temperature and oil level, and display and record them.Vacuum Brazing of Cemented Carbide and Martensitic Stainless Steel At the same time, the fan whose detection value exceeds the limit will be alarmed and stopped, so as to achieve the safe and stable operation of the fan. The purpose of reducing or even eliminating the occurrence of fan damage accidents. According to the actual situation of on-site management, the three parameters of "fan vibration", "lubricating oil temperature" and "gearbox oil level" are determined to be the most important operating parameters to ensure the safety of the fan. A total of 15 design parameters such as "measurement range", "measurement accuracy" and "inspection time" have been determined for R&D and production.Application of Pressureless Sintering of Silicon Carbide Ceramics The system uses multi-parameter combined probe technology, digital command coding technology and computer network management technology. The three-parameter combination probe is installed on the fixed seat of the berth ruler of the fan gear box, and its probe rod is directly inserted into the lubricating oil, which directly converts the oil temperature, berth and equipment vibration values in the gear box into electrical signals, and transmits them to the remote control room. Fan safety monitor. Each safety monitor can be connected with 8 combined probes with a four-core cable to monitor the operating parameters of 8 fans in real time, and complete digital display at the same time. Over-limit alarm, over-limit shutdown and other multi-phase functions. After many tests and modification designs, it has been successfully applied to the equipment production site, and various parameters have reached the predetermined design requirements.Influence of Reaction Sintering Process on Properties of Silicon Carbide Ceramics