博文

目前显示的是 二月, 2019的博文

How to deal with the deep decarbonization of vacuum furnace

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Deep decarburization of vacuum furnace after disposal ultimately will be based on the disposal of oxygen to the resolution of molten steel in the abundance of content is still high, so that more than three hundred, they should increase the air flow under this situation, to promote the whole air traffic in 150 cubic meters per hour, and opened the booster pump, the whole vacuum to around 1 milli mpa, guarantee the circulation of misery time nine minutes, then, can effectively reduce them to 15 mm around, just water abundance of oxygen content is low, also can choose separation with carbon content and oxygen content. With the decrease of the carbon content in the molten steel, the decarbonization rate becomes slow, and the carbon diffusion becomes a restricted link. In order to continue to stop the decarbonization, other measures must be taken. At this point, according to the light disposal after the oxygen content to determine the resolution. First, when the abundant oxygen content

Vacuum sintering furnace basics

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Vacuum sintering furnace brazing: in a vacuum state, a liquid metal having a lower melting point than the base metal is used to fill the metal gap of the substrate by capillary suction between the two workpieces to form a firm bond. Annealing in a vacuum sintering furnace: Eliminating the reduction of tissue inhomogeneity and removing internal stress improves its plasticity. Tempering in a vacuum sintering furnace: Eliminating internal stresses during machining. Vacuum quenching: (gas quenching, oil quenching) rapid cooling after heating to harden the material. Vacuum carburization: Carburization is carried out in a vacuum carburizing atmosphere under vacuum heating. Vacuum ion carburizing: A new vacuum chemical heat treatment for hardening metal surfaces. Vacuum chemical heat treatment: vacuum carbonitriding, vacuum boronizing and other processes (improvement). Vacuum glow ion nitridation: Generally, ion nitridation is performed under a high voltage DC electric field

Vacuum sintering furnace working process

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Vacuum sintering furnace working process

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What is the scope of application of vacuum atmosphere furnace

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The vacuum atmosphere furnace forms a vacuum environment with negative pressure inside the closed furnace body and fills the body with thermal media water. The water is heated by combustion or other means, and then evaporates and condenses to the heat exchanger. The water to be heated is then heated by the heat exchanger. Vacuum atmosphere furnace is used for heating equipment in the vacuum environment, mainly used for ceramic firing, vacuum refining, electric vacuum parts degassing, annealing, brazing of metal pieces, and ceramic - metal sealing. The furnace body is divided into upper and lower parts. The upper part is a vacuum chamber (negative pressure steam chamber), in which a tubular steam-water heat exchanger is installed to heat the circulating water flowing through the heat exchanger. Operating principle: when the vacuum hot water boiler is in operation, the heat medium water in the furnace body under the vacuum negative pressure absorbs the heat energy released by fuel com

What are the advantages of vacuum furnace?

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Vacuum furnaces are definitely an indispensable equipment in today's precision equipment. Relatively speaking, they will choose some different combinations according to the principle of mechanics. In fact, his advantages are still very extensive. . The vacuum furnace can select the appropriate steel plate according to the principle of mechanics, and it can be fully pressed according to the scientific combination. The overall appearance is very strong, and it is particularly strong and durable. It also has certain reliability, and the entire surface is sprayed. The anti-corrosion effect is relatively large, and from the appearance point of view, the whole is beautiful and generous. The whole vacuum furnace has some high-quality steel plates processed by the bending machine. The surface is continuously sprayed, and the surgery, more or less, will not touch. Before, a series of air will be formed, which can effectively and completely insulate. The layer is convected to effectively

Bell type furnace

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Vacuum brazing furnace heat resistant material? Do you understand?

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Vacuum brazing furnace heat-resistant materials are mainly used for heating components of vacuum brazing furnaces. What are the heat-resistant materials of vacuum brazing furnaces? 1. Thermosetting resin Thermosetting resins are phenolic resins, polyimides, epoxies, silicone resins, etc., and these materials are not thermoplastic, so they can be used at high temperatures for a long period of time. Such materials are the best in the heat-resistant materials of vacuum brazing furnaces. In general, epoxy resins can be used at temperatures above 200 degrees Celsius, while other materials can be used at temperatures above 300 degrees Celsius for long periods of time, especially aldehyde phenol resins, which are a high temperature resistant and ablation resistant material in the space shuttle. More used on it. 2. Special engineering plastics This material has a high melting point, a high thermal decomposition temperature, and the strength and rigidity of these materials are also

How to solve the problem of vacuum gas quenching furnace failure?

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1. The low temperature of the vacuum gas quenching furnace can not reach the test index, then you have to observe the change of temperature, the temperature is very slow, or the temperature has a rising trend after the temperature reaches a certain value. The former should check the vacuum atmosphere. Whether the furnace is dried before the furnace is tested at low temperature, the studio is kept dry, and then the test sample is put into the working chamber and then tested. The test sample in the working chamber is placed too much, so that the wind in the working chamber cannot be fully circulated. After excluding the above reasons, it is necessary to consider whether it is a fault in the refrigeration system, so it is necessary to ask the professional of the manufacturer for maintenance. 2. In the high temperature test of the vacuum gas quenching furnace, if the temperature change does not reach the test temperature value, the electrical system can be inspected and the faults can

Vacuum heat treatment working principle

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Plasma Arc Melting Furnace

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Difference between atmosphere furnace and vacuum furnace

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The difference between atmosphere furnace and vacuum furnace, vacuum thermal disposal skills, namely, the comprehensive skills of vacuum skills and thermal disposal skills, are all and part of the thermal disposal process in the vacuum form. China divides vacuum into four types: low, medium, high and ultra-high vacuum. At present, the vacuum degree of most vacuum heat treatment intermediate frequency furnaces is 1.33~1.33 x 10-3pa. The difference between the atmosphere furnace and the vacuum furnace is that the vacuum thermal treatment can simply complete all the thermal treatment processes, such as quenching, annealing, tempering, carburizing, nitriding, gas quenching, oil quenching, nitrite quenching, water quenching, etc. in the quenching process, can also be vacuum brazing, sintering, appearance disposal. The difference between the atmosphere furnace and the vacuum furnace is that the vacuum heat treatment furnace has high thermal efficiency, which can achieve rapid leveling and

How to Maintain Vacuum Furnace

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Vacuum Furnace Manufacturer: How to Maintain Vacuum Furnace Nowadays, many industries will use vacuum furnaces in the products of vacuum furnaces manufacturers. How to maintain them when using vacuum furnaces? Below the high temperature vacuum furnace small braiding you to learn about it. 1. For valves and other accessories, installation instructions should be maintained. High temperature vacuum furnace. 2. If maintenance is to be carried out, the vacuum furnace will be cut off to ensure the safety of operators. 3. Clean the appearance of the vacuum furnace equipment of the vacuum furnace manufacturer and keep it clean. 4. Check circulation water flow. If there is no flow, add water pipes and so on. 5. Dust exists in the vacuum furnace equipment of the vacuum furnace manufacturer, which should be rubbed with alcohol. 6. Regular refueling of transmission parts of vacuum furnace. High temperature vacuum furnace. 7. When disassembling and assembling sealed parts, it is necessary to cle