Equipment Overview
The vacuum hardening furnace is a heat treatment equipment for metal materials, whose main function is to heat the metal material in a vacuum environment to quickly cool it after reaching a certain temperature,
Thereby changing the microstructure of metal materials through chemical reactions, improving their hardness, wear resistance, corrosion resistance, and other properties.
Vacuum hardening furnace Body structure
Its furnace body adopts a horizontal placement and a single-door design. A cylinder is installed on the side of this door for automatic locking. This design structure is currently the most common and convenient to use
The internal material of the furnace body is SS316L with a thickness of 10mm, and the external material is SS304 with a thickness of 8mm. Water cooling pipes are installed in the middle of these two materials. When the vacuum hardening furnace needs to cool down, these pipes can use circulating cooling water to cool down quickly
A nitrogen delivery pipe is installed inside the vacuum furnace. Some hardening processes require the use of nitrogen, and the valve will automatically open when it meets the requirements
The appearance color of the furnace body can be customized, usually using gray-white with other bright colors as embellishments. This type of paint can withstand high temperatures
Vacuum hardening furnace data
| No. | ITEM | DATA |
| 1 | Maximum temperature | 2200℃ |
| 2 | Door opening type | Side opening |
| 3 | Extreme vacuum degree | 5*10-4 |
| 4 | Furnace cavity size | 90*60*60cm |
| 5 | Brand | Changheng |
| 6 | Production location | China |
| 7 | Power supply | 380v/50Hz |
vacuum hardening furnace process
1, Preprocessing:
Before vacuum hardening, metals need to undergo pre-treatment, such as machining into the designed shape, cleaning the surface of oil stains, etc
2, Process settings:
Place the metal material into the vacuum furnace and close the furnace door. Set the entire vacuum hardening process on the touch screen
3, Heating and vacuuming
Heating and vacuuming are carried out simultaneously, usually with multiple steps. For example, when the temperature reaches 300 ℃, what is the required vacuum pressure
4, heat insulation
When the temperature and vacuum pressure reach the set values, the metal material needs to be kept in a vacuum environment for a period of time. The length of time depends on the properties of the material and the process requirements.
5, sclerosis:
After the insulation is completed, the metal material is rapidly cooled to achieve the required hardness. There are two ways to achieve this hardening process, such as nitrogen cooling and cooling
6, cooling
After the metal parts have hardened, the cooling water starts running to cool the vacuum-hardening furnace.
Cool the temperature to the set value and maintain it for some time, remove the metal material, and complete the entire hardening process
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