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Other Languages / What are the requirements for building a holding furnace

« on: August 03, 2022, 09:12:27 AM »

In the molten pool part of the furnace body, a 5 mm insulating asbestos plate is lined between the steel plate and the refractory material. https://www.vacfurnace.com/technology-frontiers/the-function-and-the-production-of-ceramic-bulletproof-vest/The molten pool is made of ordinary clay refractory bricks to form a rectangle. https://www.vacfurnace.com/technology-frontiers/casting-vacuum-heat-treatment-process/Clay bricks with a square inner circle are prepared to be embedded in the graphite base. The upper part of the front wall should only be built with 130 mm thick clay bricks and asbestos boards, because graphite plug rods need to be installed here. If the front wall is too thick, the graphite base will grow. https://www.vacfurnace.com/technology-frontiers/copper-wire-workshop-design-and-vacuum-heat-treatment/which affects the premature drop of the liquid metal temperature during drawing. Practice has proved that the front wall is too thick to be unfavorable for drawing. The side walls and rear walls on both sides can be built with 130 mm thick refractory bricks. The gap between the bricks and the furnace shell Filled with quartz sand, the bottom of the molten pool can be built with refractory bricks of about 200 mm and cushioned with quartz sand, which should be adjusted according to the height of the installation of the crystallizer, and the bottom of the molten pool can be appropriately built thicker.https://www.vacfurnace.com/technology-frontiers/vacuum-heat-treatment-furnace-for-molds/

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Other Languages / the transparent electric furnace

« on: August 02, 2022, 05:41:37 AM »

The transparent electric furnace (transParentfurnace) https://www.vacfurnace.com/technology-frontiers/gear-vacuum-heat-treatment-process/uses the infrared reflective layer to reflect the radiation of the heat energy of the heating body to keep warm. https://www.vacfurnace.com/technology-frontiers/high-corrosion-resistance-aluminum-alloy-brazing-sheet-and-its-vacuum-heat-treatment-process-news/At the same time, the reflective layer can transmit visible light and be transparent. It abandons the traditional thermal insulation materials, and has the advantages of simple manufacturing process, small size, light weight, and high electric heating efficiency. Due to the special structure of the furnace body, the heat capacity is small, the heating up is fast, and the cooling performance is good. https://www.vacfurnace.com/technology-frontiers/vacuum-heat-treatment-of-cast-steel-valve-seats/The most striking thing is that the furnace body is transparent, and the workpiece in the furnace can be directly observed during use. The equipment has a wide range of uses in scientific research and production in the fields of electronics and metallurgy.

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Other Languages / What does the aging furnace do?

« on: July 29, 2022, 09:07:08 AM »

If the workpiece is heated to a higher temperature and the aging treatment is carried out in a short time, it is called artificial aging treatment. If the workpiece is stored at room temperature or under natural conditions for a long time, the aging phenomenon occurs, which is called natural aging. https://www.vacfurnace.com/technology-frontiers/aerospace-materials-and-vacuum-heat-treatment/Aging treatment. The purpose of aging treatment is to eliminate the internal stress of the workpiece, stabilize the structure and size, improve mechanical properties, etc. https://www.vacfurnace.com/technology-frontiers/gear-processing-technology-and-vacuum-heat-treatment/Aluminum aging found that the hardness of this alloy after quenching is not high, but after being placed at room temperature for a period of time, the hardness will increase significantly. The phenomenon came to be known as precipitation hardening. https://www.vacfurnace.com/technology-frontiers/vacuum-heat-treatment-of-ld-steel-hexagonal-cold-heading-die/

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Other Languages / Failure Analysis of Industrial Furnace

« on: July 28, 2022, 10:00:51 AM »

Each reversing valve is equipped with a pneumatic triple, which should be regularly refueled, slag cleaned, and drained. When refueling, first close the front hand valve of the pneumatic triple piece, and then remove the oil cup to add oil. https://www.vacfurnace.com/technology-frontiers/copper-wire-workshop-design-and-vacuum-heat-treatment/The oil volume of the oil cup should not exceed the full scale. The oil is the atomized oil specified by the pneumatic triplet, and can also be replaced by 32# turbine hydraulic oil. The atomization speed of the oil should be adjusted to 3 to 5 days to atomize a cup of oil. When refueling, if necessary, slag removal and drainage can be carried out together. If the pneumatic triplet does not atomize oil, the triplet should be repaired or replaced in time.https://www.vacfurnace.com/technology-frontiers/the-function-and-the-production-of-ceramic-bulletproof-vest/
When the reversing system fails and alarms, find out the fault point according to the alarm indicator displayed on the control cabinet, and carry out timely treatment after on-site inspection and confirmation to restore the normal operation of the reversing valve. If the air pipe bursts or falls off, close the compressed air supply valve of the reversing valve and replace the corresponding air pipe immediately. If the limit switch is loose and cannot contact the circular iron sheet on the valve stem, the rotation angle of the limit switch can be adjusted immediately to ensure the normal contact between the reversing valve plate and the limit switch contact wheel when it is at the front and rear limit positions. https://www.vacfurnace.com/technology-frontiers/casting-vacuum-heat-treatment-process/If it does not belong to the above 1), 2) https://www.vacfurnace.com/technology-frontiers/vacuum-heat-treatment-furnace-for-molds/

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Other Languages / Introduction of induction furnace

« on: July 27, 2022, 08:55:50 AM »

Induction furnace is an electric furnace that uses the induction electrothermal effect of materials to heat or melt materials. The main components of the induction furnace are the inductor, the furnace body, the power supply, the capacitor and the control system.https://www.vacfurnace.com/technology-frontiers/vacuum-brazing-technology-of-static-guide-vane-ring/
The main components of the induction furnace are the inductor, the furnace body, the power supply, the capacitor and the control system.
Under the action of the alternating electromagnetic field in the induction furnace, eddy current is generated inside the material to achieve the effect of heating or melting. Under the stirring action of this alternating magnetic field, the composition and temperature of the material in the furnace are relatively uniform, the forging heating temperature can reach 1250 ℃, and the melting temperature can reach 1650 ℃.https://www.vacfurnace.com/technology-frontiers/die-steel-vacuum-heat-treatment-news/
In addition to heating or smelting in the atmosphere, the induction furnace can also be heated or smelted in a vacuum and a protective atmosphere such as argon and neon to meet the requirements of special quality. Induction furnaces have outstanding advantages in diathermy or melting soft magnetic alloys, high resistance alloys, platinum group alloys, heat-resistant, corrosion-resistant, wear-resistant alloys and pure metals. Induction furnaces are usually divided into induction heating furnaces and melting furnaces.https://www.vacfurnace.com/technology-frontiers/surgical-instruments-stainless-steel-vacuum-heat-treatment/