Study on Wear-resistant, Friction-reducing and Anti-adhesion Technologies for Agricultural Rotary Tiller Blade
- Vol. 53, Issue 12, Pages: 51-57(2023)
DOI: 10.7512/j.issn.1001-2303.2023.12.08
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孙志鹏,张雷,朱晨颖,等.农业旋耕刀具耐磨降阻减粘技术研究[J].电焊机,2023,53(12):51-57.
SUN Zhipeng, ZHANG Lei, ZHU Chenying, et al.Study on Wear-resistant, Friction-reducing and Anti-adhesion Technologies for Agricultural Rotary Tiller Blade[J].Electric Welding Machine, 2023, 53(12): 51-57.
针对旋耕刀降阻降耗、减粘脱附和耐磨延寿等性能需求,提出一种金刚石钎涂耐磨涂层制备方法,并与电弧熔覆耐磨焊丝涂层、等离子堆焊WC涂层进行对比研究。结果表明,金刚石钎涂层中金刚石分布均匀且与钎料结合良好,充分发挥了承载相作用,耐磨性明显优于电弧熔覆涂层和等离子堆焊涂层,磨损失重仅为0.056 2 g,且田间试验结果表明,金刚石钎涂旋耕刀可持续耕作2 500亩以上,为电弧熔覆旋耕刀和等离子堆焊旋耕刀使用寿命的4.12倍和3.13倍;田间试验结果表明,其旋耕作业扭矩为584.66 N·m,为电弧熔覆旋耕刀和等离子堆焊旋耕刀旋耕扭矩的79.1%和89.9%,其土壤粘附率为0.8%,为电弧熔覆旋耕刀和等离子堆焊旋耕刀土壤粘附率的53.3%和70.2%,表现出优异的降阻减粘性能。
In response to the performance requirements of reducing resistance and consumption, reducing adhesion and detachment, and improving wear resistance and durability of rotary tiller blades, a method for preparing diamond-coated wear-resistant coatings is proposed. The method is compared with arc-sprayed wear-resistant welding wire coatings and plasma-sprayed WC coatings. The results show that the diamond-coated wear-resistant coating has a uniform distribution of diamonds and good bonding with the solder, fully exerting the role of the load-bearing phase. It has significantly better wear resistance than the arc-sprayed and plasma-sprayed coatings, with a weight loss of only 0.056 2 g. Field tests also show that the diamond-coated rotary tiller can sustainably cultivate an area of over 2 500 acres, which is 4.12 times and 3.13 times longer than the lifespan of the arc-sprayed and plasma-sprayed rotary tillers, respectively. Furthermore, the torque during rotary tillage is 584.66 N·m, which is 79.1% and 89.9% of the torque of the arc-sprayed and plasma-sprayed rotary tillers, respectively. The soil adhesion rate is 0.8%, which is 53.3% and 70.2% of the soil adhesion rate of the arc-sprayed and plasma-sprayed rotary tillers, respectively, demonstrating outstanding resistance reduction and anti-adhesion performance.
旋耕刀钎涂金刚石耐磨降阻减粘
rotary tiller bladebrazing coatingdiamondwear resistancedrag reductionadhesion reduction
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