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为寻找在目前的炉顶温度(～500℃),以及将来更高的炉顶温度(～600℃)的高炉料钟工况条件下能长期工作的堆焊材料,本文对新型堆焊材料进行了研制。堆焊合金成分的选择目前有关高炉料钟磨损机理的研究还不多,其原因是高炉料钟磨损现象是极其复杂的,且受着各种因素的影响。然而,从高炉料钟的使用条件及磨损面的分析可知,高炉料钟的磨损,是由高温下高压气流的冲刷、矿料的磨粒磨损,以及开关料钟时与料斗之间的金属间磨损所决定。对于这样的磨损类型,按目前的磨损理论,堆焊材料的高温硬度是必要的,但也与堆焊材料的组织特性有关。即在一定的高温硬度下,堆焊金属应具有均匀分布的高硬度的
In order to find out the surfacing material which can work for a long time under the condition of the current roof temperature (~ 500 ℃) and the future higher roof temperature (~ 600 ℃), the new surfacing material Developed. The choice of surfacing alloy composition At present, there are not many studies on the wear mechanism of blast furnace clocks. The reason is that blast furnace clocks wear is extremely complicated and affected by various factors. However, from the use of blast furnace clock conditions and wear surface analysis shows that blast furnace bell wear, high pressure air flow by erosion at high temperatures, abrasive abrasive wear and tear, and switch the material when the hopper between the metal bell Worn decision. For such wear types, the current wear-out theory suggests that the high temperature hardness of the build-up material is necessary, but also related to the texture properties of the build-up material. That is, at a certain high temperature hardness, surfacing metal should have a uniform distribution of high hardness