Study on Surface Modification of Feed Bulking Machine Extuding Screw

Bao Chen Ren; Ya Hui Wang; Wen Bin Wu

doi:10.4028/www.scientific.net/AMR.148-149.475

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 148-149Study on Surface Modification of Feed Bulking...

Study on Surface Modification of Feed Bulking Machine Extuding Screw

Abstract:

Ionitrriding and plasma arc surface quenching are seprately used to harden screw surface for settling the wearing problem of bulking machine extruding screw during the feed production process in the paper.The results indicate that surface hardness is incresed 1～2times and the depth of harden layer is about 0.15～0.3 millimeter by ionitrding,but plasma arc surface quenching can improve the surface hardness of screw 2～3times, and the depth of harden layer is about 0.2～0.45 millimeter. Metallurgical structure of harden layer is also analysed and discussed.

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Periodical:

Advanced Materials Research (Volumes 148-149)

Pages:

475-478

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.148-149.475

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Online since:

October 2010

Authors:

Bao Chen Ren, Ya Hui Wang, Wen Bin Wu

Keywords:

Bulking Machine, Extruding Screw, Ionitriding, Plasma Arc Surface Quenching, Surface Modification

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References

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