The transport tank is a horizontal type of pressure vessel used to transport LPG in the oil and gas industry. LPG transport tank pressure vessels result in fatigue in the pressure vessel so fatigue…
This study aims to analyze the cost structure and level of technical efficiency and determine the relationship between the cost structure and the level of technical efficiency in the iron and steel…
This study aims to determine the effect of cutting parameters on screw geometry in the turning process. Data was collected using descriptive analysis techniques. The results showed that the differe…
Zat tanin merupakan salah satu jenis inhibitor yang dapat digunakan untuk menghambat laju korosi, salah satu jenis inhibitor alami yaitu teh. Inhibitor yang digunakan dalam penelitian ini ada dua j…
Corrosion is material damage due to electrochemical reactions between the material and its environment. This study used medium carbon steel A36 as a test specimen, mango Mangifera foetida leaves as…
Metode penelitian yang digunakan pada penelitian ini adalah metode eksperimen yang bertujuan untuk menguji pengaruh dari media pendingin Tubeless tire fluid terhadap laju korosi yang telah melalui …
Normalizing is the process of heating steel to the austenite phase, and cooling it in open air to 27°C. Thus causing the structure in the material to change initially due to loading. In this study…
Fatigue is a process of permanent progressive localized structural change in a material that occurs due to repeated stresses and strains below the acceptable stress limit for the material and at a …
This study discusses the fatigue resistance of leaf spring construction steel with repeated torsion loading. In this test, the leaf spring steel is stressed repeatedly in order to get the required …
This study aims to determine the highest value in steel materials low carbon using SMAW type welding machine, using the X junction, which distinguishes the use of ampere current variations (100 A, …
Corrosion is defined as a color change, quality degradation, destructive phenomenon of a material as a result of a chemical and electrochemical reduction-oxidation reaction between a material and v…
This study aims to determine the effect of variations in tempering temperature on the quenching process on the hardness level of ST 37 steel. The research method used is an experimental method. Spe…
Quenching merupakan salah satu proses untuk meningkatkan kualitas kekerasan produk baja khususnya pada permukaan baja, di suhu austenit. Tujuan penelitian ini untuk mengetahui apakah variasi tingka…
Penelitian ini menggunakan variabel pengalaman praktik industri (X1), prestasi akademik (X2) kesiapan kerja mahasiswa (Y), jenis penelitian asosiatif. Populasi penelitian adalah mahasiswa pendidika…
Quenching merupakan proses perlakuan panas agar meningkatnya kekerasan material dengan cara dipanaskan sampai temperatur austenite kemudian dididinginkan secara cepat dengan media pendingin. Peneli…
Quenching is a heat treatment process in which the metal is heated to the austenitic temperature by rapid cooling. This study aims to determine the effect of chromium compound cooling media on the …
Tujuan dari penelitian ini adalah untuk mengetahui kekuatan tarik dari pengaruh variasi media pendingin terhadap pengelasan SMAW dan GMAW pada baja St 37. Penelitian ini menggunakan metode eksperim…
This study aims to see the value of hardness and ductility of the metal tested by tensile testing, with variations in cooling media Quenching water and oil media heated to the same temperature up t…
In the welding process, the factors that affect the results of welding include the angle of the seam and the strong current used. This is because the greater the cross-sectional area of the weld jo…
Tujuan penelitian ini adalah mengetahui pengaruh quenching senyawa asam cuka pada kekerasan Baja ST-37 dengan menggunakan media pendingin asam cuka 20%, 30%, 40% dan 50%, aquades dan menggunakan uj…
This study aims to determine the comparison of the tensile strength of the AISI 1045 medium carbon steel joint after SMAW and GMAW welding using variations of V and X seams and 100A and 120A curren…
The use of holding time in annealing heat treatment can affects the toughness of a material, because holding the material at a predetermined holding time can produce homogeneous heating and the gra…
Pengelasan merupakan salah satu hal yang hampir tidak terpisahkan dalam dunia manufaktur karena hampir setiap tempat membutuhkan penyambungan. Penelitian ini bertujuan untuk mengetahui nilai kekera…
Heat treatment is a process of heating and cooling a metal in a solid state with the aim of changing the physical properties of the metal being heated. Induction heating is a metal heating techniqu…
The research about the effect of metal ratio influence Co/Mo to porosity and acidity of Co/Mo-Ti02 pillared montmorillonite catalyst had been done. Natural montmorillonite was modified with the pii…
Engineering and repair industrialization is a sign of technical progress. Welding has been one of the initiatives to improve the quality of the product being manufactured. The type of welding metho…
The objective of this research is to analyze the effect of industry concentration on the production efficiency of the basic iron and Steel industry m Indonesia. This research uses quantitative and …
Pasir besi merupakan logam yang paling banyak kedua di bumi. Pasir besi terbentuk selama berjuta tahun lamanya, sehingga kandungan yang terdapat di dalam pasir besi pun beragam, seperti mineral mag…