Wear resistant surface treatment of pulverizer blades

Niranatlumpong, Panadda; Sukhonket, C.; Nakngoenthong, Jiradech

doi:10.1016/j.wear.2012.11.078

Cited by 8 publications

(4 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The speed of the knife point is higher than other parts of the knife, because it is far from the rotating shaft. Therefore, the knife point is more susceptible to wear than other parts of the knife, which decreases the cutting performance of the knife point [27,28]. The self-grinding knife and 65 Mn steel knife were assembled on one rotating shaft.…”

Section: Field Experiments On a Laser Cladding Self-sharpening Cuttermentioning

confidence: 99%

Self-Grinding Silage Knife Strengthened with Ni–WC Alloy Prepared by Laser Cladding

Song

et al. 2021

Applied Sciences

View full text Add to dashboard Cite

The working environment of agricultural cutting tools is poor, and the operational quality and efficiency are reduced after they become blunt. This study aimed to develop a high wear-resistant agriculture knife with a long life. A Ni–WC alloy, wear-resistant layer was prepared using laser cladding technology on one side of the cutting edge of a 65 Mn silage knife. A self-grinding edge was formed when the cladded knife was used, which improved the cutting quality and service life of the knife. The microstructure, phase, composition, and hardness distribution of the cladding layer were detected and analyzed. The impact toughness and wear resistance of the laser-cladded samples were analyzed, and the cladded knife was tested in the field. The results show that a cladded layer with a dense microstructure formed metallurgical bonds with the substrate. The microhardness was uniform across the cladded layer, and the average hardness of the micro Vickers was approximately 1000 HV(0.2), which was approximately three times the hardness of the substrate. The impact toughness and wear resistance of the coated knife were obviously higher than those of uncoated knives. The field tests showed that compared with a conventional 65 Mn knife, the self-grinding knife with laser cladding could maintain its sharp cutting shape after operation for 76 h, which greatly extended the service life of the knife. This study improved the service life of an agricultural cutting tool, which enhanced the cutting performance and efficiency at the same time.

show abstract

Section: Field Experiments On a Laser Cladding Self-sharpening Cuttermentioning

confidence: 99%

Self-Grinding Silage Knife Strengthened with Ni–WC Alloy Prepared by Laser Cladding

Song

et al. 2021

Applied Sciences

View full text Add to dashboard Cite

show abstract

“…However, the error for the conversion into volume loss made by neglecting these amounts of W 2 C has been estimated to be smaller than the error of the measurement. The density of electrolytic hard chromium was assumed to be ρ EHC = 7.2 g/cm 3 [44].…”

Section: Accepted Manuscriptmentioning

confidence: 99%

Tribology of HVOF- and HVAF-sprayed WC–10Co4Cr hardmetal coatings: A comparative assessment

Bolelli

Berger

Börner

et al. 2015

Surface and Coatings Technology

170

View full text Add to dashboard Cite

show abstract

“…Coatings have attracted considerable interest in the agricultural engineering community due to the wedge angle, tip stability and resistance to wear in the stalk cutting process of blades [4]. Many research results have indicated that coated blades could achieve selfsharpening characteristics in the cutting process, and that their harvesting efficiency was significantly increased compared with uncoated blades [5].…”

Section: Introductionmentioning

confidence: 99%

Study on Low-Damage Cutting of Alfalfa Stalks by Self-Sharpening Blades of Gradient Material with Carbon-Nitron-Boronized Heat-Treatment

Bai

Ren

et al. 2022

Coatings

View full text Add to dashboard Cite

The work aims to realize low-damage cutting of Alfalfa stalk. The self-sharpening blades of gradient material were prepared by 40 Cr steel, then heat-treating the flank surface by carbon-nitron-boronized with a rare elements catalysis technique. The biological characteristics of Alfalfa incision self-healing and regeneration process were analyzed in order to compare the cutting effects of different blades. After treatment with carbon-nitron-boronized with rare elements catalysis, the flank surface and tip point of blades were coated by boride layer and carbonitriding layer. The composition, microstructure and properties of the carbon-nitron-boronized layer demonstrated a gradient distribution state, and had good wear resistance. A kinetic model for the formation of the carbon-nitron-boronized layer was proposed. The initial stage of heat-treatment was mainly a carbonitriding process. When continuous and compact boride was formed on the surface, it was mainly boridized. The results of field experiment indicated that compared with the commercial blades, the self-sharpening blades have excellent properties as wear resistance and long service life. In addition, the cut damage caused by the self-sharpening blades was less, the self-healing and regeneration process of Alfalfa stalk was normal, and the regeneration duration was greatly shortened. The blades with carbon-nitron-boronized heat-treatment could form the self-sharpening characteristics, always maintaining the cutting sharpness, and realized the low-damage cutting of Alfalfa stalk.

show abstract

Wear resistant surface treatment of pulverizer blades

Cited by 8 publications

References 4 publications

Self-Grinding Silage Knife Strengthened with Ni–WC Alloy Prepared by Laser Cladding

Self-Grinding Silage Knife Strengthened with Ni–WC Alloy Prepared by Laser Cladding

Tribology of HVOF- and HVAF-sprayed WC–10Co4Cr hardmetal coatings: A comparative assessment

Study on Low-Damage Cutting of Alfalfa Stalks by Self-Sharpening Blades of Gradient Material with Carbon-Nitron-Boronized Heat-Treatment

Contact Info

Product

Resources

About