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Unshaped refractory refractory clay composition and classification

Date:2018-03-01 15:15 From:Zhengzhou Sunrise Refractory Author:admin
Refractory mud is made of powdery materials and binding agents for the modulation of mud with amorphous refractory materials. Powdered material with a sintered clinker or other volume of a variety of fire-resistant materials made of stability.
 
Manufacture of refractory mud powder can choose to use abundant sintered clinker and other volume of a stable variety of refractory materials. The particle size of the powder material according to the requirements of the application, the ultimate particle size is generally less than 1mm, some less than 0.5mm or finer. Reasonable particle composition to ensure that the construction of mud has a great influence on the performance, the same binding agent and admixture. In general, the binder used for refractory mud has a great influence on the construction function of the mud, and the same applies to the binder and admixture. The general level of fire-resistant mud used to combine clay. But with the chemical bonding agent has been more widely used. In refractory mud to participate in a variety of additives can improve the construction of fire-resistant mud, such as water-holding agent to extend the water-loss time, to ensure the construction quality; Participate in plasticizers, in the case of smaller participation, increase the plasticity of the mud ; Participate in dispersants to improve the mobility of mud and so on.
 
Refractory mud according to its cohesive hardening characteristics can be divided into hydraulic, thermosetting, gas-hard fire-resistant mud. Hydraulic refractory mud is cement as a binding agent, can be used at room temperature or may be with water or water vapor often touch place. Hot-hard refractory mud commonly used phosphoric acid or phosphate and other hot-hard binder made. In addition to hardening of such mud in a variety of temperatures have higher strength, shrinkage, tight joints, corrosion resistance. Gas-resistant refractory mortar sodium silicate commonly used gas-rigid binder, this mud can make the brick joints tight.
 
According to the refractory powder used in different materials, commonly used refractory mud can be divided into: clay, siliceous, high-aluminum, magnesium, thermal insulation material. Refractory mud is primarily used as a touch and exterior coating for refractory masonry. When used as a joint material, the quality of the masonry life has a great impact. It can adjust the size of the brick error and irregular shape, the masonry regular and load balanced. Masonry can also make a strong and tight overall, to resist the damage of external forces and to avoid the masonry, melt immersion.
 
Summary: Almost all refractory materials can be used to make the powder used to manufacture refractory mud. To refractory clinker powder plus a suitable amount of plastic clay as a binder and plasticizer made of general fire-resistant mud, its low temperature at room temperature, high temperature ceramic composition to form a combination of high strength. With hydraulic, pneumatic or thermosetting combination of information as a binder known as chemical-bonded refractory mud, below the composition of the ceramic bonding temperature occurs before the chemical reaction and hardening.
 
The particle size of refractory mud varies according to the application requirements. The ultimate particle size is generally less than 1mm, and some less than 0.5mm or finer.
 
Selection of refractory mud material, masonry refractory products should be considered together. Refractory mortar except for making joints, but also can be used to change the law or spray method for lining maintenance coating.

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