Vacuum carburizing is a heat treatment process that creates directed diffusion of carbon atoms into a metal surface by heating a carbonaceous material such as coal or carbon monoxide. This creates surface hardening of the surface.
Characteristics :
| Maximum temperature in the working chamber, °C | 1300 |
| Temperature uniformity, °C | ±5 |
| Leakage rate (in a cold empty vacuum furnace), Pa/h | 0.5 |
| Ultimate vacuum, Pa (in a cold empty furnace) | 2×10 -3 |
| Working area, (WxHxD), mm | from 250x250x400 to 800x800x1200 |
| Maximum mass of a load at a time, kg | 1200 |
Description:
Depending on the duration and temperature of heating, the carbon content in the surface layer also changes. With an increase in exposure and carburizing temperature, as a rule, there is an increase in the depth of the carburized layer. When the steel is rapidly cooled (quenched) in carburized parts, the high carbon surface layers are hardened by the transformation of austenite to martensite, while their core remains soft and tough, with a ferritic and/or pearlitic structure.
The vacuum carburizing process can be characterized as follows: it is mainly applicable to low carbon steel products. Vacuum carburizing makes it possible to obtain a high concentration of carbon in the surface layers, and also provides high hardness and strength of the surface of products after hardening. The core of the processed products retains its plasticity and toughness. The maximum depth of the cemented layer is up to 6.5 mm. In some cases, the vacuum carburizing process can also be used to restore the carbon content of previously decarburized surface layers of materials.
Design features and equipment:
Note:
Characteristics are indicated for standard models, we offer furnaces with non-standard dimensions, an increased working area according to the technical specifications of the customer.
