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Bina Teknika
ISSN : 16938550     EISSN : 26571374     DOI : -
Core Subject : Engineering,
Bina Teknika pertama publikasi tahun 2007, dengan registrasi ISSN dari LIPI Indonesia. Jurnal ini dimaksudkan sebagai media kajian ilmiah hasil penelitian, pemikiran dan kajian analisis-kritis mengenai isu Keteknikan, baik secara nasional maupun internasional. Artikel ilmiah dimaksud berupa kajian teori (theoritical review) dan kajian empiris dari ilmu terkait, yang dapat dipertanggungjawabkan serta disebarluaskan secara nasional maupun internasional. Bina Teknika menerima artikel ilmiah dengan area penelitian pada: 1. Teknik Mesin 2. Teknik Perkapalan 3. Teknik Industri 4. Teknik Elektro Dengan artikel yang memiliki sitasi primer dan tidak pernah dipublikasikan secara online atau versi cetak sebelumnya. Bina Teknika sebagai bagian dari semangat menyebarluaskan ilmu pengetahuan hasil dari penelitian dan pemikiran untuk pengabdian pada Masyarakat luas, situs Bina Teknika menyediakan artikel-artikel jurnal untuk diunduh secara gratis. Jurnal Bina Teknika adalah jurnal ilmiah nasional yang merupakan sumber referensi akademisi. Dengan jadwal terbit 2 (dua) kali setahun, yaitu Juni dan Desember.
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Articles 238 Documents
PERBANDINGAN KEKERASAN DAN STRUKTUR MIKRO PEGAS DAUN YANG MENGALAMI PROSES HEAT TREATMENT Saputra, Rudi; Tyastomo, Estu
Bina Teknika Vol 12, No 2 (2016): Bina Teknika
Publisher : Fakultas Teknik UPN "Veteran" Jakarta

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Abstract

Leaf spring is a component that functions to receive dynamic load and provide comfort in driving. Leaf springs are commonly used small public service vehicles and small commercial vehicles are deteriorated mechanical properties prior to the age limit of leaf springs. To restore the mechanical properties of the spring there will be a heat treatment that includes heat treatment of cooling (quenching) .From Hardness Vickers hardness test results on steel leaf springs are associated with an increase of hardness, on the condition of normal leaf spring steel without heat treatment hardness obtained average price of 325 , on the condition of the leaf spring steel with heat treatment at a temperature of 8000C with cooling oil obtained average price of 380, on the condition of the leaf spring steel with heat treatment at a temperature of 8000C with air cooling average price obtained - average of 339, from the test results of metallographic condition microstructure on the leaf spring normally with no warm-up run into the matrix pearlitic and at the side there sulfide / impurities formed by sulfur, the results of tests metallographic condition of microstructure on the leaf spring that is experiencing warming with quenching oil in the form of a matrix martensitic and at the edges of experience decarburization , austenitic microstructure form, the results of tests metallographic condition of microstructure on the leaf spring is warming by cooling the air in the form of a matrix perlitic middle and at the edges of experience decarburization micro-structure in the form of ferrite-pearlite.
ANALISIS KARAKTERISTIK UNJUK KERJA KONDENSOR PADA SISTEM PENDINGIN (AIR CONDITIONING) YANG MENGGUNAKAN FREON R-134 a BERDASARKAN PADA VARIASI PUTARAN KIPAS PENDINGIN Siagian, Saut
Bina Teknika Vol 11, No 2 (2015): Bina Teknika
Publisher : Fakultas Teknik UPN "Veteran" Jakarta

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Abstract

Air conditioning in the room is used to regulate humidity, heating and cooling the air in the room. This conditioning aims to provide comfort, so as to reducing fatigue. To get the air temperature corresponding to the desired lot alternative that can be applied, such as by increasing the heat transfer coefficient condensation and by adding the speed of cooling air in the condenser that will obtained coefficient greater performance. The method used in this study was experiments using the equipment of the machine refrigeration air conditioning system in the energy Conversion Laboratory designed by students of the faculty of Engineering , recorded data such as temperature, pressure and the pressure difference in the compressor. To make variations in condenser fan shaft rotation is done by making several changes to the motor frequency power move. Variations condenser fan rotation electric motor used is 50 rpm up to 120 rpm. The registration data such as pressure and temperature subsequently plotted on P-h chart for the refrigerant R-134a. Based on the discussion and the calculation of the data obtained, it can be a number of conclusions and performance characteristics of the cooling system, greater the flow rate air to cool the condenser then the coefficient of achievement is increasing. Because the rate of large heat release will impact on condenser temperatures are getting lower, so can achieve lower temperatures again in evaporator output. So the compressor work more light on the variation rate of heat release most.
ANALISIS PERBANDINGAN KEKERASAN PERMUKAAN POROS AXLE SHAFT JENIS MATERIAL S-43 YANG DILAKUKAN DENGAN PROSES INDUKSI HARDENING PADA MESIN 12-9 B “KORA NETUREN” Sumiyanto, Sumiyanto
Bina Teknika Vol 14, No 1 (2018): Bina Teknika
Publisher : Fakultas Teknik UPN "Veteran" Jakarta

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Abstract

Hardening process is the process of hardening in a material heated above the critical temperature and then cooled quickly (quenched) to reach room temperature in order to improve hardness and strength of a material. Hardening process carried out on all the tools and some equipment or machine parts that have a major benefit is to obtain a higher hardness.This research was conducted on 447 SNCM alloy steel which is a medium carbon steel grade that is equal to 0:30 to 0:38%. This type of steel can be hardened by heat treatment process that is by heating the steel at a temperature of 500oC, for 1 hour as the preheating temperature (preheated). Then proceed to the process of hardening, namely austenising temperature with 900oC with holding time 2 hours and cooled with oil and then water in tempering with holding time 1 hour at 300oC, 400oC and 500oC.From research result obtained using the Vickers hardness values that increase occurred in materials that undergo a process of hardening at 900oC cooling using water media, whereas the lowest hardness value occurs in the original material.
PEMILIHAN SUBKONTRAKTOR PT X DENGAN METODE ANALYTICAL HIERARCHY PROCESS Rio Patria, Lilik Zulaihah; Patria, Rio
Bina Teknika Vol 12, No 1 (2016): Bina Teknika
Publisher : Fakultas Teknik UPN "Veteran" Jakarta

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Abstract

PT. X is a company engaged in the field of engineering services procurement and construction (EPC), whose scope of work is the provision which has activities such as selecting subcontractors and evaluate the performance of subcontractors and building maintaining relationship with subcontractors. The selection of subcontractors has been less effective, because the show just based on the lowest offer and mere instinct of managers. So that when the project goes arises the problem stems from a subcontractor who is not taken into account before. This research helps decision maker in making the decision to choose a subcontractor in the project Based Oil Flushing (BOF) by integrating Analytical Hierarchy Process (AHP) method. AHP is used to determine the weight of the priority with seven aspect of the three first priorities of quality aspects, financial aspects, and aspects of the company’s reputation, and is also used to determine the weight AHP priorities of the twenty-three criteria with three first priority the offer price, quality assurance, and work experience. Of the four subcontractors research result into the most optimal subcontractor, chosen in accordance with the value of the achievement of targets is limited to the smallest deviation from other subcontractors.
STUDI KOMPUTASI ALIRAN PEMANAS PADA INKUBATOR TELUR BERKAPASITAS 400 TELUR DENGAN MENGGUNAKAN SUMBER PANAS BUMI BERENTALPI RENDAH Hendrarsakti, Jooned; Fachri, Muhammad Faisal; Lukmana, Muhammad Arifudin
Bina Teknika Vol 13, No 1 (2017): Bina Teknika
Publisher : Fakultas Teknik UPN "Veteran" Jakarta

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Abstract

This study aims to analyze the possibility of using geothermal energy as an alternative energy source for the egg incubator hatchery with capacity of 400 eggs. Geothermal resource used in the process of retrofitting has a temperature of 70°C with a maximum flow of 2 liters/s in accordance with the data of geothermal resources at Tangeung - Cibugur, Cianjur regency.Based on the results of the feasibility studies that have been done, the source of geothermal energy can be used for heating egg incubator in order to reach adequate incubation conditions (temperature 36 to 38.5 ° C and a relative humidity of 50-60%). In the process of retrofitting, the design of the incubator used is forced draft incubator. Its components are heat exchanger, fans, and a water tray. The type of heat exchanger that used is cross flow, one fluid mixed, one fluid unmixed. It uses a staggered arrangement of copper pipe as a heat exchange surface.Incubator with geothermal energy is well used by using 5 fans with volume flow rate 0,0094 – 0,0141 m3/s on the condition of the inlet air temperature is 23-27°C and a minimum pipe temperature is 65°C.
STUDI PERFORMANSI ECONOMIZER JENIS ALIRAN SILANG UNTUK PROSES DEGREASING DI PT. X PLANT KARAWANG Komarudin, Komarudin; Rahmaputra, Reza
Bina Teknika Vol 14, No 2 (2018): Bina Teknika
Publisher : Fakultas Teknik UPN "Veteran" Jakarta

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Abstract

Economizer is Heat Exchanger with Crossflow type that have function as reheater the  water to degreasing process. System of Economizer had operated continuously for 7 years. So from this condition Effectiveness and Temperature possibility Can’t achieve the Requirement. Degreasing Process is a part of Painting process in Vehicle manufacturing that have function to degrease the oil, dust and etc.  A decrease in the effectiveness of this, we need recalculation and compare  with design condition to get better effectiveness. Analysis will be refer to fluid flow, overall heat transfer coefficient (U), and Efffectiveness of Economizer it self. Based on result of Calculation and Experiment, the flow of fluid is turbulent flow with Reynold number 12002.14 (Max Condition). Overall heat transfer coefficient (U) is 16.18 W/mK, while the design condition is 48 W/m.K also for Effectiveness is 32.16% and the design condition is 50%. This calculation Proved decreasing of that the performance of economizer. It is caused by scaling of the inner pipe with ratio 2.26%. Scaling will be reduce thermal conductivity of the pipe and also gradient of Temperature.
PLANNING COST PRODUCTION PATROL BOAT TYPE V21 FIBER GLASS Hatuwe, M Rusdy; Marasabessy, Amir; Prayitno, Sugeng
Bina Teknika Vol 13, No 2 (2017): Bina Teknika
Publisher : Fakultas Teknik UPN "Veteran" Jakarta

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Abstract

Development of fleet of patrol boats by the Ministry of Sea Transportation as an effort to supervise Indonesian territorial waters, especially in remote areas to prevent illegal fishing by neighboring fishing vessels where from October 2014 to 1 April 2017 there are 317 fishing vessels of neighboring countries that have been drowned, with details of Vietnam 142 vessels, Philippines 76 ships, Thailand 21 ships, Malaysia 49 ships, Indonesia 21 ships, Papua New Guinea 2 ships, China 1 ship, Belize 1 vessel and no country 4 ships Production cost planning needs to be carefully scrutinized, if the production cost budget is too big ship production Not economical otherwise if too small can affect the quality of ship production. The objective of the research is to make a budget production plan of V21 patrol boat type of fiber glass material, where the material and equipment of ship component is marine use with the price referring to current rupiah exchange rate, so it is expected to be guaranteed economic value and ship production quality. The method used in production cost planning is the unit price survey of materials and equipment / equipment of ship components with reference to general arrangement design drawings, mindset section and technical specifications. Based on the result of research, production cost of ship patrol vessel type V21 fiber glass Rp.554.720.000, - while the cost of making molded and hull and deck unit Rp.174.220.000, -
MENINGKATKAN KAPASITAS PRODUKSI SEMI TRAILER SIDE TIPPER TIPE 74 DENGAN MENGGUNAKAN METODE LINE BALANCING DI PT. XYZ Ahyadi, Harwan; Prahara, Rahayu Budi
Bina Teknika Vol 12, No 1 (2016): Bina Teknika
Publisher : Fakultas Teknik UPN "Veteran" Jakarta

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Abstract

Perkembangan industri otomotif dalam hal ini alat berat yaitu sebagai sarana logistic untuk sarana angkut hasil pertambangan dewasa ini sangat tinggi dan bersaing, terutama penggunaan mobil-mobil yang bermuatan besar dalam hal ini Semi Trailer Side Tipper tipe 74 sebagai alat transportasi darat. Tingginya permintaan dari sebesar 20 unit perbulan menjadi 32 unit perbulan yang dipengaruhi oleh harga terjangkau dan kesesuaian dengan minat masyarakat Indonesia, membuat pihak pengelola harus meningkatkan efisiensi dari beberapa aspek untuk tetap meningkatkan kualitas.Demikian pula yang terjadi pada PT. XYZ sebagai salah satu perusahaan pengadaan atau pembuatan Semi Trailer Side Tipper tipe 74. Hal ini juga berdampak pada line efficiency jalur perakaitan Semi Trailer Side Tipper tipe 74 nilai Efisiensi line 24,88 %, Idle Time 14,49 jam, Balance delay 6 %, Smoothest Indeks 8,61, Takt Time 14,67 jam/unit. Metode yang digunakan untuk meningkatkan line efficiency dan menurunkan idle time, Balance Delay, Smoothest Indeks, Takt Time yaitu metode penyeimbangan lintasan atau line balancing. Hasil yang diperoleh dari aktivitas line balancing pada jalur produksi Semi Trailer Side Tipper tipe 74 adalah jumlah stasiun kerja menurun dari 16 stasiun kerja menjadi 15 stasiun kerja, efficiency line meningkat dari 75,12 % menjadi 80,81%, idle time ratio menurun dari 14,49 jam menjadi 8,90 jam, Balance Delay menurun dari 6% menjadi 5,89% dan Smoothest Indeks meurun dari 8,61 menjadi 6,71. Peningkatan efisiensi pada jalur Semi Trailer Side Tipper tipe 74 berimbas pada kebutuhan operator produksi yang bertambah dari 41 operator menjadi 43 operator. Dengan menurunnya kebutuhan produksi 20 unit perbulan menjadi 32 unit perbulan serta pengurangan stasiun kerja di kurangi dengan penambahan 2 orang operator maka perusahaan mendapat keuntungan kotor sebesar Rp 132.838.460,- per bulan atau Rp 1.594.061.520,- per tahun.
ANALISA PENGARUH SUHU DAN WAKTU PEMANASAN PADA NYLON FILM TERHADAP MAMPU BENTUK ZIPPER Faizal, Mohamad; Wahyudi, Fahmi
Bina Teknika Vol 13, No 1 (2017): Bina Teknika
Publisher : Fakultas Teknik UPN "Veteran" Jakarta

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Abstract

Ultrasonic Welding has been used to join the thermoplastic material of about 35 years. Now, Ultrasonic Welding has been widely used not only for the thermoplastic material, but also can be used for all kinds of industries, one of which is the textile industry. Ultrasonic Welding has many advantages economically and efficiency. In its use of the zipper industry, Ultrasonic Welding used to join between components to the surface of the film nylon zipper. However, the wrong calculation of the temperature and the length of time could caused the strength of nylon films was reduced to cause permanent damage. This study aims to determine the temperature and duration of heating time. Ultrasonic Welding is used Branson type with power supply 40 kHz / 60 W with a maximum current of 3A. Booster type used is standard series M8 x 1:25 Horn 40 kHz with titanium material. Converter used CH30 with a maximum continuous use at 60 W. attachment method used is butt joint with a gap between the horn surface is ¼ inch zipper.Thermoplastic material in this case used nylon 66.
ANALISIS PERAN MAINTENANCE PADA PROSES CATHODIC ELECTRO DEPOSITION (CED) Maulana, Mahdi; Cholis, Nur
Bina Teknika Vol 14, No 2 (2018): Bina Teknika
Publisher : Fakultas Teknik UPN "Veteran" Jakarta

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Abstract

Cathodic Electro Deposition atau CED adalah proses pelapisan sebuah objek yang memiliki permukaan konduktif terhadap listrik menggunakan material organik. Permukaan konduktif tersebut dihubungkan dengan arus listrik sebagai katoda, sedangkan pelapisan menggunakan cat bermuatan positif berupa medium air bermuatan listrik. Objek Cathodic Electro Deposition (CED) berupa logam, mudah bermuatan listrik. Material organik yang digunakan terkandung dalam cat atau dapat disertakan melalui tahapan proses. Cathodic Electro Deposition (CED) digunakan pada pelapisan komponen kendaraan. Electro-deposition sebagai cara praktis dalam mengecat telah dikembangkan dalam industri otomotif selama akhir 1950 dan awal 1960 untuk mengecat mobil dan bagian–bagian mobil. Material yang terbawa air yang digunakan dalam sistem awal semua jenis resin anodik berdasarkan exsisting air ditanggung teknologi cat primer. Teknologi ini bukan merupakan hal langka di dunia industri. Kata kunci: Kemajuan teknologi, efisiensi, and Cathodic Electro Deposition (CED)

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