PERBANDINGAN NILAI KEKERASAN DAN STRUKTUR MIKRO MATERIAL PISTON SEPEDA MOTOR 4 TAK ORIGINAL DAN IMITASI

Bina Teknika Pub Date : 2020-04-17 DOI:10.54378/bt.v15i2.1271

Media Nofri

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Abstract

The function of the piston is to accept the pressure from the combustion of the gas mixture and continue the pressure to pass through the connecting rod. The use of aluminum as a piston material is inseparable from its properties and is very suitable for pistons. n this study three piston materials were tested, namely piston A (Original), B (Imitation 1) and C (Imitation 2) with Aluminum material which also contained Silicon (AlSi). The tests carried out included testing the chemical composition, microstructure photographed from various position and hardness by the Vickers method. The results of these tests obtained varying hardness values with an average piston A value of 129 HV, piston B an average of 148.2 HV, piston C an average of 135.2 HV. The results of the microstructure test on piston C have srinkage casting defects and porosity defects while piston A and B have no defects. Whereas in testing the chemical composition of the value contained in the piston piston A has Al 81.7% and Si 14.0%, piston B Al 82.2% and Si 14.3%, piston C Al 83.5% and The 13.2%. From the results of the chemical composition test, the hardness value and microstructure of the three materials can be said to have almost the same value

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暴力价值比较和活塞材料微结构摩托车4不是原创和仿制品

活塞的作用是接受气体混合物燃烧产生的压力，并将压力继续通过连杆。使用铝作为活塞材料与其性能是分不开的，非常适合用于活塞。在本研究中测试了三种活塞材料，即活塞A (Original)， B (Imitation 1)和C (Imitation 2)，使用铝材料也含有硅(AlSi)。所进行的测试包括测试化学成分，从不同位置拍摄的显微组织和维氏硬度。这些试验的结果得到了不同的硬度值，活塞A的平均值为129 HV，活塞B的平均值为148.2 HV，活塞C的平均值为135.2 HV。结果表明，活塞C存在挤压铸造缺陷和气孔缺陷，而活塞A和活塞B没有缺陷。而在测试中所含活塞的化学成分值，活塞A的Al为81.7%，Si为14.0%，活塞B的Al为82.2%，Si为14.3%，活塞C的Al为83.5%，Si为13.2%。从化学成分试验的结果来看，三种材料的硬度值和显微组织可以说具有几乎相同的值

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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