The types of material that can be formed using this process include metal borides, silicides, carbides, nitrides, sulphides, aluminides and oxides.
This reaction generates temperatures above the melting point of alumina and is used in the thermit welding process for joining railway lines.
Several other terminologies - such as combustion synthesis, gasless combustion or self-propagating exothermic reaction - are used to describe the process.
The combination of high rigidity of ceramic and high elasticity of steel gives the pipe unmatchable features as an abrasion resistant, heat resistant and corrosion resistant material for use in the fields of power generation, metallurgy, mining, and chemical industry etc.. It has many advantages over steel pipes, cast stone pipes, and steel-plastic compound pipes.
Ceramic Lined Steel Pipe and Elbow
1.1 The Manufacturing Process of Ceramic Lined Steel Pipe and Elbows:
Ceramic (Corundum: a-Al2O3) lined abrasion resistant straight pipe and fittings are lined with highly abrasion resistant ceramic by SHS -------Self-propagating High-temperature Synthetic process.
The composite pipe is composed of three layers: ceramic, intermediate, and steel layers. The ceramic layer is formed by molten alumina at a temperature above 2500 degree.
The molten alumina produced from the reaction Fe2O3+2Al=2Fe+Al2O3 spreads on the inside wall of the steel pipe under the influence of a centrifugal force, then solidifies, so the ceramic layer has high density and smooth surface and bonds to the steel pipe. They are widely used to convey highly abrasive material such as fly ash and any other fine powder material in mine, thermo power generating, coal processing plant, metallurgy, construction, etc. The service life is 10 to 20 times longer than normal steel pipe.
Delivery Time: According to Your Requirement ASAP
自蔓延高温合成技术（self-propagating high-temperaturesyctthesis f 5f}5] technology）又称燃烧合成技术。依靠化学反应合身放热来制备材料的新技术。
即外加能源(电热或激光等)触发点火剂燃烧，进而引发反应物料(气相一固相，固相-固相、液和一同相等)自发高速反应、放出热髦，反应由局部以燃烧波的形式自动蔓延整个体系，最后获得新的合成材料的技术。反应物可以是元素粉末相互直接棍合或元素粉末与气体，也可用金属氧化物和还原剂及非金属粉末的混合物反应生成热能维持反应持续进行、反应产物必须是稳定的化合物、.该技术具有产物纯度高、设备简单、能耗低‘生产灵活等优点，缺点是工艺参数控制要求较严。已用此法制备出数百种化合物，像各种金属的氮化物、碳化物、硼化物、硅化物、氧化物、氢化物等。S}-IS技术已发展成SH5制粉技术、SHS烧结技术、5H5致密化技术、5HS熔铸技术、5H5焊接技术、SHS涂层技术等。