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      Vacuum furnace
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      Taicang Huarui Vacuum Furnace Co., Ltd
      Address: No.1, Nanzhuan Road, Shuangfeng town, Taicang City
      Contact person: Zheng Xinghua
      Mobile: 13285178098
      Contact: Guan Zhanlong
      Mobile: 18606226806
      Contact person: Zheng Shuai
      Mobile: 13285179528
      Tel: 0512-88826556
      Fax: 0512-53630028
      Email: 1306769879@qq.com
      National Service Hotline:
      0512-53630028
      Website: www.emilyhammann.com

      Heat treatment skill of vacuum furnace

      Release date: 2019-09-06 00:00 source: http://www.emilyhammann.com Click:

      Vacuum heat treatment is the inductive technology combining vacuum technology and heat treatment, which means that the whole and part of the heat treatment process are carried out in vacuum. China divides vacuum into low, medium, high and ultra-high vacuum.
      Vacuum furnace and medium frequency electric furnace have a good development prospect in the field of hot working. They are used for induction heating of diathermy, rolling, forging, bending, heat treatment (quenching), welding and other processes. So what are the heat treatment skills of vacuum furnace and medium frequency electric furnace?
      1. When titanium alloy is treated in vacuum furnace, nitrogen should not be used as cooling gas, because titanium and nitrogen react at high temperature to form golden titanium nitride.
      2. The movable connection part of the vacuum furnace is sealed with O-ring, and this part is cooled by water.
      3. When the workpiece is quenched in vacuum, vacuum quenching oil shall be used, which has low saturated vapor pressure.
      4. The maintenance of the vacuum furnace shall be in the state of vacuum or pure nitrogen filling to avoid air absorption and moisture absorption when not in use.
      5. The pressure rise rate of domestic vacuum furnace shall not be greater than 1.33pa/h, and that of some foreign enterprises shall be 0.67pa/h
      6. Vacuum heating is mainly based on radiation, and the distance between workpieces in the furnace shall be adhered to.
      7. During the heating process, the workpiece and furnace materials will be deflated to reduce the vacuum.
      8. The heating temperature of vacuum tempering, vacuum annealing, vacuum solution treatment and vacuum aging is generally the same as that of conventional treatment.
      9. The vacuum tempering furnace shall be equipped with quick cooling device. The pressure of cooling water shall be greater than 0.2MPa, and the flow shall be adjustable.
      10. Cooling gas: generally, 99.995% pure nitrogen is used for steel, 99.999% nitrogen or argon is used for superalloy and 99.995% argon is used for titanium alloy.
      11. Temperature rise: after the workpiece is put in, it can be heated only when it is pre pumped to 6.67pa.

      Related tags: 真空炉,真空气淬炉,真空油淬炉

      National Hotline

      0512-53630028
      Address: No.1, Nanzhuan Road, Shuangfeng
      town, Taicang, Suzhou, Jiangsu
      Email: 1306769879@qq.com

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