消失模铸造高炉溜槽衬板

杨勇勤; 陈启超

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消失模铸造高炉溜槽衬板
Guttering Back Board for Blast Furnace in Lost Foam Casting
2007年第12期页码：952-953
纸质出版日期： 2007 ，
DOI：

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[1]杨勇勤,陈启超.消失模铸造高炉溜槽衬板[J].特种铸造及有色合金,2007(12):952-953+900.

Yang Yongqin1, Chen Qichao2. Guttering Back Board for Blast Furnace in Lost Foam Casting[J]. Special Casting & Nonferrous Alloys, 2007,(12):952-953.
[1]杨勇勤,陈启超.消失模铸造高炉溜槽衬板[J].特种铸造及有色合金,2007(12):952-953+900. DOI：

Yang Yongqin1, Chen Qichao2. Guttering Back Board for Blast Furnace in Lost Foam Casting[J]. Special Casting & Nonferrous Alloys, 2007,(12):952-953. DOI：

摘要

根据溜槽衬板的工况条件

提出了在高铬耐磨合金材料上镶铸硬质合金的新方法。将硬质合金预埋于EPS模型内

再进行浇注

从而得到综合性能优良的复合材料。在母体材料中添加了Cr、Mo、W、V等合金元素及合适的成分

得到显微组织硬度很高的M7C3型碳化物

因而材料具有很高的耐磨性;碳化物呈弥散分布

材料的冲击韧度也较高;由于硬质合金的加入

使衬板的红硬性得到明显提高。采用消失模铸造

溜槽衬板的使用寿命大大提高。

Abstract

A new method to cast-in hard alloy on high Cr wear resistant alloy was adopted according to the operating condition of guttering back board.The composites with excellent comprehensive properties can be fabricated by embedding the hard alloy into EPS pattern to pour.The composites exhibit high wear resistance due to the addition of Cr

V into the based alloy and proper composition resulting in the creation of M7C3 carbides with high micro-hardness.In addition

the high impacting roughness can be observed due to the dispersive distribution of carbides in the composites.The hard alloy can greatly improve the red hardness of the back board.The molding

gating system and smelting of back board in lost foam casting were described.Practical trial-use verified that the service life of back board can be greatly improved.