厚壁离心管坯铸型涂层厚度的确定及其涂层气隙综合传热系数的计算

详细信息

Determination of Coating Thickness of Centrifugal Casting Mould for Heavy-wall Shell and Calculation of Composite Heat-transfer Coefficient of Coating Air Gap

摘要: 采用实验与线性插值、模拟相结合的方法确定了涂层的导热系数、涂层气隙的综合传热系数。分析了涂层厚度对厚壁管坯横截面温度梯度的影响,并结合实际对不同工艺参数下管坯横截面的温度梯度进行了分析,确定了不同壁厚管坯的涂层厚度范围。
- 离心铸造 /
- 管坯 /
- 涂层厚度 /
- 导热系数 /
- 综合传热系数 /
- 温度梯度
Abstract: The heat conductivity factor of the coating and the composite heat-transfer coefficient of the coating air gap are determined by means of relevant practice and linear interpolation together with simulation.Influence by the coating thickness on the cross section temperature gradient of the heavy-wall shell is analyzed.Also analyzed are the cross section temperature gradients of the shell with different technological parameters on the basis of actual operation status,resulting in determination of the coating thickness ranges for shells with different wall thicknesses.
- Centrifugal casting /
- Shell /
- Coating thickness /
- Heat conductivity factor /
- Composite heat-transfer coefficient /
- Temperature gradient