Analisa Kegagalan Upper Hill Wearing Ring Tyre Pada Rotary Kiln Unit 2 Pada Pt.Semen Indonesia

Prasetya, Panji Akbar (2016) Analisa Kegagalan Upper Hill Wearing Ring Tyre Pada Rotary Kiln Unit 2 Pada Pt.Semen Indonesia. Undergraduate thesis, Institut Teknologi Sepuluh Nopember Surabaya.

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Abstract

Wearing ring merupakan komponen yang memiliki kontak langsung dengan shell kiln dan berfungsi untuk melindungi tyre ring dari kerusakan yang terjadi sehingga mengganggu aktivitas produksi. Kerusakan berupa fatigue dikarenakan terkena beban cyclic, tegangan axial dan shear stress yang terus menerus menyebabkan wearing ring mengalami kegagalan. Wearing ring menggunakan material ASTM A36. Pada pengujian OES didapatkan hasil komposisi kimia yang sesuai dengan standar yaitu kadar karbon sebesar 0,21% dan unsur Fe sebesar 97,7%. Pada pengujian kekerasan dilakukan pada 2 daerah menggunakan metode brinell didapatkan hasil rata-rata yaitu jauh patahan sebesar 133 BHN dan dekat patahan 139,8 BHN dan sesuai standar yaitu 110-149 BHN. Pada pengujian metallografi didapatkan hasil berupa fasa yang terbentuk adalah ferit-perlit. Hasil perhitungan pada penelitian wearing ring tyre ini didapatkan tegangan geser yang bekerja sebesar 191,46 MPa dari yang diizikan yaitu sebesar 400 MPa dengan torsi sebesar 47,4 Nm. Dan ini disebabkan oleh kesalahan pemasangan stopper yang berlebih sehingga wearing ring putus yang dibuktikan juga pada simulasi menggunakan solidwork. ============================================================ Wearing Ring is a component that has direct contact with the kiln shell and serves to protect Tyre Ring of the damage that occurred, disrupting production. Damage in the form of fatigue due struck a cyclic load, axial tension and shear stress continue to cause wear ring failure. Wearing the ring using the material ASTM A36. On the OES testing showed that the chemical composition according to the standards that the carbon content of 0.21% .and at 97.7% Fe element. In hardness testing performed on 2 areas that is far from the fracture and fracture the close of each 6 points Brinell indentation method showed an average that is far fracture by 133 BHN and near fault 139.8 BHN and standards compliant is 110-149 BHN. In metallografi test results obtained in the form of a phase that is formed is a ferrite-pearlite. The calculation in the study was obtained tire wear ring shear working of 191.46 MPa from which denied entry amounting to 400 MPa with a torque of 47.4 Nm. And this is caused by faulty installation of excess stopper so that the wear ring broke evidenced also in the simulation using solidwork..

Item Type: Thesis (Undergraduate)
Additional Information: RSMt 620.112 Pra a-1
Uncontrolled Keywords: rotary kiln, wearing ring, ASTM A36, tyre
Subjects: T Technology > TJ Mechanical engineering and machinery > TJ174 Maintenance and repair of machinery
Divisions: Faculty of Industrial Technology > Material & Metallurgical Engineering > 28201-(S1) Undergraduate Thesis
Depositing User: EKO BUDI RAHARJO
Date Deposited: 18 Dec 2019 07:37
Last Modified: 18 Dec 2019 07:37
URI: http://repository.its.ac.id/id/eprint/72436

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