电焊机2024，Vol.54Issue(2)：122-125,131,5.DOI:10.7512/j.issn.1001-2303.2024.02.19
球磨时间对TiC高锰钢结硬质合金组织性能的影响
Effect of Milling Time on Microstructure and Properties of TiC High Manganese Steel Bonded Carbide
齐丁丁 1李恒 2张永生 2尼军杰2
作者信息
- 1. 无锡天山水泥有限公司,江苏 无锡 214111
- 2. 郑州机械研究所有限公司,河南 郑州 450001
- 折叠
摘要
Abstract
In this paper,the ball milling time in the production of steel-bonded cemented carbide was selected as the re-search object.The effects of ball milling time of 20 h,24 h and 28 h on the microstructure and properties of TiC high manga-nese steel-bonded cemented carbide were studied.The results show that the ball milling time increases from 20 h to more than 24 h and 28 h,the proportion of the particle size distribution of the mixture over 600 mesh increases from 44.51%to 80%and 83%,the particle size distribution is finer,the microstructure pores of the alloy decrease,and the bending strength increases from 833 MPa to 932 MPa and 1008 MPa.The more pores in the alloy lead to a decrease in density because the CO and CO2 gases produced in the redox reaction stage of the sintering process cannot be discharged from the sintered body in time.In actual production,by appropriately increasing the ball milling time,the microstructure of TiC high manganese steel bonded carbide can be improved,its performance can be improved,and higher quality products can be obtained.关键词
球磨时间/TiC高锰钢结硬质合金/微观组织/力学性能Key words
ball milling time/TiC high manganese steel bonded carbide/Mircostructure/performance分类
矿业与冶金引用本文复制引用
齐丁丁,李恒,张永生,尼军杰..球磨时间对TiC高锰钢结硬质合金组织性能的影响[J].电焊机,2024,54(2):122-125,131,5.
