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leadingcoating1
Sep 05, 2022
In Forum
furnace refers to the operation process in which the hot blast stove is cooled from the production hot state to normal temperature, and is an important link in the production of the hot blast stove. Different refractory materials and different shutdown methods apply different cooling furnace methods.MIM plastic-based adhesive, wax-based which type is better? When the blast furnace is in normal production, there is a cooling furnace when the inner masonry of the hot blast stove needs to be overhauled in the hot blast stove group.CuMnNi brazing filler metal vacuum brazing 40Cr steel and YG8 cemented carbide Shougang's cooling furnace experience is as follows: 1) Set the No. 1 hot blast stove to be repaired. During the last air supply, reduce the temperature of the top of the furnace to 1000-1050 °C, then change the furnace, close the air mixing valve after changing the furnace, and use the No. 1 hot blast stove for air mixing Furnace, its cold air valve is used as air temperature control valve, and it is not allowed to be fully closed;Vacuum heat treatment process of rolling die 2) During the mixing process of No. 1 furnace, the other two hot blast furnaces take turns supplying air. After 3 cycles, the air temperature is lowered to 200°C lower than the normal air temperature (the blast furnace load is correspondingly reduced), and No. 1 continues to be used for mixed air;Vacuum annealing process of TC4 alloy sheet 3) When the temperature of No. 1 furnace top drops to 250℃, stop working as a mixed-air furnace, close its cold and hot air valves, open the waste air valve and flue valve, and then start the combustion-supporting fan to continue to force the furnace to cool; 4) After the dome temperature drops from 250°C to 70°C, stop the combustion-supporting fan and complete the cooling of the furnace.
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leadingcoating1
Sep 02, 2022
In Forum
How the total heat exchanger works The working principle of the total heat exchanger is to filter and purify the outdoor fresh gas, and then send it into the room after heat exchange treatment. A high-efficiency, energy-saving and environmentally friendly high-tech product influenced by fresh air.Vacuum Heat Treatment Process of 38CrMoAI Steel The core device of the total heat exchanger is the total heat exchange core. The dirty air discharged from the room and the fresh air sent from the outside not only exchange temperature through the heat transfer plate, but also exchange humidity through the micropores on the plate, so as to achieve both ventilation and air exchange. The air also keeps the indoor temperature and humidity stable. This is the full heat exchange process. When the total heat exchanger operates during the cooling period in summer, the fresh air obtains the cooling capacity from the exhaust air, which reduces the temperature, and at the same time is dried by the exhaust air, which reduces the humidity of the fresh air; in winter, the fresh air obtains heat from the exhaust air, making the The temperature rises and is humidified by the exhaust air at the same time.Effect of Magnesium on Aluminum Alloy Vacuum Brazed Joints The total heat exchanger is mainly composed of a heat exchange system, a power system, a filter system, a control system, a noise reduction system and a box.Vacuum Heat Treatment of High Speed Straight Shank Twist Drill
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leadingcoating1
Aug 22, 2022
In Forum
Working principle of hot blast stove Hot blast stove is a thermal power machine. It has been widely used in my country in the late 1970s. It has become a replacement product of electric heat source and traditional steam power heat source in many industries. There are many varieties and series of hot blast stoves. Alternate Vacuum Brazing Process for Aluminum Alloy MaterialsThey are divided into two types: hand-fired and machine-fired by the way of adding coal, and coal, oil, and gas stoves by the type of fuel.Vacuum carburizing and quenching of thin-walled ring gears and arc gearsThe function of the blast furnace hot blast furnace is to heat the blast to the required temperature to improve the efficiency and efficiency of the blast furnace; it works according to the principle of "regenerative storage". The situation and solution of the scrapped vacuum furnaceThe gas is burned in the combustion chamber, and the high-temperature exhaust gas passes through the checkered bricks to store heat. When the checkered bricks are fully heated, the hot blast stove can be changed to air supply. At this time, all combustion valves are closed, and all air supply valves are opened. Checkered bricks are heated and sent out. When the blast furnace is equipped with 3-4 hot blast stoves, two or three are heated and one is supplied with air. When the blast furnace is replaced in turn, two are heated.Vacuum Brazing Process of Slide Valve Sub-assemblies
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leadingcoating1
Aug 19, 2022
In Forum
Energy saving measures of heating furnace Heating furnaces, various industrial furnaces, and boilers are all high-energy-consuming kilns that consume a lot of resources. When the heating furnace heats the ingot, the temperature is high, and the flue gas takes away a large amount of high-temperature heat, resulting in wasted waste and low heat utilization rate. Measures to save energy and reduce consumption include:MIM Process Equipment 1. Paint RLHY-2 black body radiation energy-saving paint on the inner wall of the heating furnace, increase the radiation rate of the refractory material of the heating furnace wall, and speed up the radiation heat transfer in the furnace. This product can achieve an energy saving rate of 10%~20%.Vacuum heat treatment process of automobile gearbox gears 2. The high emissivity barrel-shaped device is installed on the inner wall of the heating furnace, which also plays the role of improving the emissivity of the refractory material of the furnace wall, accelerating the radiation heat transfer in the furnace, and the energy saving rate of the product is 3%~6%. The disadvantage of this method is that The investment is too large and the cost recovery period is relatively long.Carbide vacuum brazing 3. The use of honeycomb ceramic regenerator can achieve the purpose of waste heat recovery, but the one-time investment is large, there are many switching mechanisms, and the maintenance cost is high; cause serious energy loss. The use of heat exchangers can make up for the shortcomings of honeycomb ceramics, and has less investment, no switching mechanism, and no maintenance.Selection of Quenching Cooling Medium
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leadingcoating1
Aug 18, 2022
In Forum
Learn about oil and gas boilers Oil-fired gas boilers refer to boilers that can use both oil and gas. A boiler that can only use oil is called an oil-fired boiler, and a boiler that can only use gas is called a gas-fired boiler.Alternate Vacuum Brazing Process for Aluminum Alloy MaterialsIf the boiler is equipped with an oil-fired gas dual-fuel burner, then the boiler is an oil-fired gas boiler. Oil-fired gas boiler is a relatively general concept. Oil-fired gas boilers are mainly divided into boiling water boilers, hot water boilers, steam boilers and heat transfer oil boilers. When purchasing, choose different oil-fired gas boilers according to their own purposes.The situation and solution of the scrapped vacuum furnace Oil-fired gas boilers are different from coal-fired boilers in that they require a burner to inject fuel into the boiler hearth, and use a fire chamber to burn without using a grate facility. Since no fuel ash is produced after the combustion of the oil-fired gas boiler, the oil-fired gas boiler does not need a slag discharge facility. If the oil and gas injected into the furnace are mixed with air within a certain range or extinguished, it is easy to explode. Therefore, oil-fired gas boilers need to use automated combustion and control systems. The oil-fired gas boiler has a compact structure. The small boiler body and its ventilation, water supply, control and auxiliary equipment are all set on a distribution box. The large and medium-sized boilers can also be assembled and shipped.MIM Process Equipment
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leadingcoating1
Aug 17, 2022
In Forum
Electric steam boiler The hot water or steam generated in the boiler can directly provide the thermal energy required for industrial production and people's life, and can also be converted into mechanical energy through a steam power device,Vacuum low pressure carburizing heat treatment process of 8620 steel or into electrical energy through a generator. Boilers that provide hot water are called hot water boilers, which are mainly used in life and also have a small amount of applications in industrial production. Boilers that generate steam are called steam boilers, often referred to as boilers, and are mostly used in thermal power plants, ships, locomotives, and industrial and mining enterprises.Vacuum Brazing Process Electric boiler is a kind of electric boiler that uses electricity as energy, converts electric energy into heat energy, heats the heat medium water or organic heat carrier (heat transfer oil) to certain parameters (temperature, pressure) through the heat exchange part of the boiler, and outputs the output with rated power. 9SiCr die steel vacuum heat treatmentQuality thermal mechanical equipment. Electric boilers can be divided into: KS-D electric water boilers, CLDR (CWDR) electric hot water boilers (including electric heating boilers and electric bathing boilers), LDR (WDR) electric steam boilers, etc. A steam boiler is a boiler that produces steam of specified parameters and quality.Vacuum oil quenching heat treatment
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leadingcoating1
Aug 16, 2022
In Forum
Centrifugal pump is composed of many parts. According to the working state of each part during operation, it can be roughly divided into three categories Type: rotating part, fixed part J4: and handover part. Taking the single-stage single suction horizontal centrifugal pump as an example, as shown in Fig. 2.4, the function, composition, structure and material of each part are introduced. 1 impeller (also known as working wheel) The drum is the main part of the water pump, and even the core part of the water pump. The centrifugal system relies on the high-speed rotation of the impeller Water is used to realize energy conversion. The N1 wheel rubber of the centrifugal pump is composed of two circular cover plates. There is a gap between the cover plates. 1: the bent blade will be two in front and back The two cover plates are connected together, and the space groove surrounded by the two adjacent blades and the front and rear cover plates is generally called the flow of water. (2) accumulated glaze The beam rib is used to rotate the pump impeller. It receives power from the prime mover (motor) and drives the impeller to rotate. Thus, the pump The shaft shall have sufficient torsional strength and rigidity, and its deflection shall not exceed the allowable value; The working speed cannot be close to resonance The critical speed of the phenomenon. Common materials of pump shaft are carbon steel and stainless steel. 3. Key The impeller and the pump rail are connected by keys. The chain is commonly known as the connecting piece of rotating parts. 3 in Fig. 2.4 is a centrifugal pump The usually used flat key can only transmit torque and cannot fix the axial position of the impeller. In large and medium-sized fruits, the leaf The axial position of the wheel is usually located by the shaft sleeve and the nut of the shaft sleeve. How to deal with power failure of electric ball valve? Liquid ring vacuum pump Liquid ring vacuum pump manufacturer
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leadingcoating1
Aug 16, 2022
In Forum
The glass melting furnace is a high-temperature energy-saving vertical resistance furnace specially used for glass melting in the glass industry. The main operation process is as follows: put a crucible (the one used in the glass industry) in the furnace, 9SiCr die steel vacuum heat treatmentthen put the prepared glass frit directly into the crucible from above, and then heat it with electricity, when the temperature rises to more than 1200 ℃, the glass When the frit is in a molten state, use a special crucible hook to open the flow hole at the bottom of the crucible, and the molten glass frit automatically flows into the container below.Vacuum Brazing of Ceramic Metals It adopts a double-layer shell structure, programmable 50-stage automatic heating, phase-shift triggering, thyristor control, and the furnace is made of alumina polycrystalline fiber material, which has the advantages of balanced temperature field, low surface temperature, fast temperature rise and fall rate, and energy saving. Unique furnace design, durable; Taiwan intelligent automatic temperature controller is a double-line LED display dial, mainly used for GWL-R temperature control, high temperature control accuracy (plus or minus 1 degree), sensitive response, programmable PID control , with deviation, over-temperature alarm and power-off protection, safe and reliable operation.Vacuum oil quenching heat treatment
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leadingcoating1
Aug 15, 2022
In Forum
Natural Gas Home Furnace The most commonly used home heating is a gas wall-mounted boiler, which heats water through the boiler and pressurizes the water pump to form a hot water cycle to complete the heating process. Gear drive shaft vacuum heat treatmentThere are three main types of gas-fired boilers on the market, casing-type gas-fired boilers, plate-replacement gas-fired boilers, and condensing gas-fired boilers. Although gas-fired boilers still emit exhaust gas, they are still a common heating method for some low-income families.Aluminum alloy vacuum brazing process Plate exchange boiler The difference from the casing boiler is that when using domestic water, the boiler is specially equipped with a heat exchange plate, which cuts off the heating water circuit through the switching of the electronic three-way valve in the boiler, so that the heated hot water forms a heat exchange in the boiler. CTS antenna vacuum brazingSmall cycle, through the plate heat exchange to domestic water. Therefore, in terms of constant water temperature, plate-exchange boilers have certain advantages, and their service life is longer than that of jacketed boilers.Vacuum heat treatment of 20CrMnTi steel
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leadingcoating1
Aug 12, 2022
In Forum
Electric heater wood type The heating plate is placed in a wooden box. There are wooden grids on the heating plate and the wooden box are fixed together. An adjustable temperature control switch is installed on the wooden box. One lead wire of the adjustable temperature control switch is connected to the live wire of the power supply. Vacuum Carburizing Process of 20CrMnTi SteelThe other lead wire is connected in series with the fuse and the quick-jump thermostat to the live wire position of the three-eye socket of the heating plate, the neutral position of the three-eye socket is connected to the neutral wire of the power supply, and the ground wire position is connected to the ground wire of the power supply. . There is no external electromagnetic radiation and static electricity when it is heated, and there will be no short-circuit accident when the surface encounters water. At the same time, it can emit far infrared rays to produce health care and physical therapy effects, and it can also achieve uniform and constant temperature heating.Vacuum carburizing and quenching process of 15CINi4MoA steel cross shaft
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leadingcoating1
Aug 10, 2022
In Forum
Oil-fired stoves are suspension-burning stoves that use heavy oil as fuel. It is generally composed of an oil burner, a noise port and a furnace cavity. The main components of an oil burner are the fuel nozzles and the register. The combustion process of oil is actually first atomized into small oil droplets, sprayed into the furnace cavity, and the oil droplets are heated and evaporated and diffused and burned.Silicon carbide mirror reaction sintering The intensified combustion process is achieved by intensifying the atomization, evaporation and mixing of oil and gas with air. Oil-fired furnaces produce very little soot, but heavy hydrocarbons or carbon are solids that are difficult to burn and often leave the furnace cavity unfinished, forming thick black smoke. The combustion temperature of oil is generally 1300-1500 ℃, and the amount of nitrogen oxides generated is much higher than that of coal-fired furnaces. Most of the sulfur in crude oil is concentrated in heavy oil, and oil-fired furnaces that use heavy oil as fuel should also pay attention to the prevention and control of SO2 pollution.Vacuum Brazing of Mechanical Blades Oil-fired furnaces are suspension-burning furnaces that use heavy oil as fuel. It is generally composed of an oil burner, a noise port and a furnace cavity.Vacuum heat treatment process of tool steel oil stove oil stove The main components of an oil burner are the fuel nozzles and the register. The combustion process of oil is actually first atomized into small oil droplets, sprayed into the furnace cavity, and the oil droplets are heated and evaporated and diffused and burned. The intensified combustion process is achieved by intensifying the atomization, evaporation and mixing of oil and gas with air. Oil-fired furnaces produce very little soot, however, heavy hydrocarbons or carbon are solids that are difficult to burn and often leave the furnace cavity unfinished, forming thick black smoke. The combustion temperature of oil is generally 1300-1500 ° C, and the amount of nitrogen oxides generated is much higher than that of coal-fired furnaces. Most of the sulfur in crude oil is concentrated in heavy oil, and oil-fired furnaces that use heavy oil as fuel should also pay attention to the prevention and control of SO2 pollution.H13 steel mold vacuum heat treatment
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