Manufacturing method for large format silicon carbide bamboo ceramic plate

Abstract

The invention discloses a manufacturing method for a large format silicon carbide bamboo ceramic plate. The method comprises the following steps of high strength bamboo chip preparation, bamboo powdered carbon preparation, mixed pulp preparation through blending, slab pavement, and pressing of the large format silicon carbide bamboo ceramic plate. The manufacturing method for the large format silicon carbide bamboo ceramic plate is simple in preparation process, a special device is not necessary, preparation cost is low, the ceramic plate with the size and specification of 2440mm*1220mm can be prepared, the prepared large format silicon carbide bamboo ceramic plate has good physical properties, the density of ceramic plate is not less than 0.95g / cm<3>, Vickers hardness is not less than 7kg / m<2>, static bending intensity is not less than 70MPa, and elasticity modulus is not less than 5000MPa.

Description

technical field [0001] The invention belongs to the field of bamboo composite materials, and in particular relates to a method for manufacturing a large-scale silicon carbide bamboo ceramic plate. Background technique [0002] A new type of porous carbon material made by impregnating wood or waste wood in thermosetting resin, and then roasting and carbonizing in a vacuum high-temperature furnace, called carbon wood ceramics, has become a research hotspot in recent years, but the raw materials for developing wood ceramics are all For wood, there are very few reports of bamboo. And my country's timber resources are extremely poor, but bamboo resources are very rich. Therefore, researching and developing bamboo ceramics and giving full play to the role of "replacing wood with bamboo" is of great significance for saving timber resources and alleviating the tension between supply and demand of timber. [0003] At present, the concept of wood ceramics has been extended, and sili...

AI Technical Summary

Problems solved by technology

At present, there are some disadvantages in the preparation methods of silicon carbide wood ceramics: first, silicon carbide is almost always treated by pressurizing or vacuumizing in a closed container, and the operation process is complicated and low in efficiency; second, silicon carbide wood ceramics The sintering is carried out in a vacuum sintering furnace or a sintering furnace protected by an inert gas, so that the size of the wood ceramics produced is small; at the same time, due to the sintering in a sealed condition, the operation process is complicated and the large-scale industrial production is difficult. The third is that the obtained wood ceramics have poor density uniformity and low strength, so it is difficult to popularize and apply

Therefore, the process technology of silicon carbide wood ceramics is obviously not suitable for making silicon carbide bamboo ceramics