Ceramic lining material for improving heat shock properties of hydraulic steel pipes

Abstract

The invention discloses a ceramic lining material for improving heat shock properties of hydraulic steel pipes. The ceramic lining material comprises, by weight, 54-56 parts of pure aluminum powder, 159-162 parts of iron oxide red, 18-19 parts of cobalt nitrate, 18-19 parts of nickel chloride, 37-38 parts of tetraethoxysilane, 74-76 parts of absolute ethyl alcohol, 10-11.5 parts of nanometer Y-ZrO2 powder, 8.5-9.5 parts of sodium tetraborate, 3-4 parts of manganese dioxide, 3-4 parts of cordierite powder, 3-4 parts of cobalt chromate, 4-5 parts of bauxite, 1-1.2 parts of sodium triphosphate, 2-3 parts of nanometer boron fibers and an appropriate quantity of deionized water. The ceramic lining material has the advantages that components such as the cordierite powder, the cobalt chromate and the bauxite are further added into raw materials for the ceramic lining material, accordingly, the toughness and the heat shock properties of materials can be obviously improved, and the ceramic lining material with low porosity can be obtained; the hydraulic steel pipes made of the ceramic lining material are long in service life, and accordingly the maintenance cycle of equipment can be prolonged; processes are simple, and accordingly popularization and application can be facilitated.

Description

technical field [0001] The invention relates to the technical field of ceramics, in particular to a ceramic lining material for improving thermal shock resistance of hydraulic steel pipes. Background technique [0002] There are many types of pipelines used in the hydraulic system. According to the working pressure and installation position of the hydraulic system, steel pipes, copper pipes, rubber pipes, nylon pipes and plastic pipes are selected. Once these pipelines are damaged and leak oil, they will pollute the environment, affect the normal function of the system, or endanger safety. The present invention uses hydraulic steel pipes as the research object. When the hydraulic system is working, the hydraulic pipeline has to bear high pressure, coupled with the combined effect of alternating stress caused by pressure instability, vibration stress caused by equipment vibration, assembly stress, etc. , Corrosion points or damages produce stress concentration, and the pipel...

AI Technical Summary

Problems solved by technology

However, due to the intense self-propagating reaction, the heat loss during the reaction process is large, and the thickness of the inner wall of the steel pipe is limited by melting, resulting in limited bonding strength and certain pores in the metallurgical bonding part, which affects the heat resistance, corrosion resistance, and Abrasion resistance has a certain influence. Under some high-impact working conditions, the ceramic coating will fall off, which will affect the service life and safety factor of the oil pipe. It needs to be improved on the basis of the original text.