ceramic fiber blanket
Ceramic fiber blanket is a blanket like material which is made of ceramic like fibers and formed by Acupuncture with certain strength. Ceramic fiber needle punched blanket is a kind of fire-resistant and thermal insulation material, which is mainly used in high-temperature industrial kilns and high-temperature pipelines.
Selection of insulation materials for corrosion prevention
The metal furnace wall of industrial furnace is often forced to be replaced due to serious corrosion. In addition to prevention from the selection of metal furnace wall, the selection of thermal insulation materials is also very important! Corrosion under insulation (Cui) of carbon steel may occur under all insulation materials. These types of insulation are only one factor in preventing corrosion. The factors that can affect Cui are as follows:
1. The content of soluble salts in thermal insulation materials, such as chlorine, sulfate and acid materials. These substances will have a certain impact on corrosion and its process.
2. Water rate, water vapor permeability and moisture absorption are also important factors affecting Cui of thermal insulation materials.
3, the residual hydrogen chloride and other harmful substances in the production process of foam materials cause a certain degree of corrosion to metals.
4. Since the metal will have Cui only in the humid environment, the corrosion risk to the equipment will be greatly reduced by minimizing the water content in the thermal insulation materials or discharging the water as soon as possible.
If appropriate thermal insulation materials are selected, the corrosion can be effectively reduced.