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…
The transformation of chitin from snail shell to chitosan and the separation of cellulose acacia mangium wiild has been done. The transformation and separation product was characterized using FT-IR…
It has been done the examination characterization of ketapang seed oil (Terminalia catappa Linn.) results of purification with activated carbon.The research’s purpose are to define optimum condit…
The use of composite Fe3C>4-activated carbon of palm oil shell to adsorption purple dye procion of songket industrial wastewater reported in this researh. The purpose of this research is to determi…
Research about ability activated carbon had been done for the adsorption of copper metal ion. Parameter which investigated were variation of particle size 60, 80, 100 and 140 mesh, variation of con…
Mineral processing activities are activities to increase the value of minerals. One of the tools commonly used is the shaking table by using the principle of differences in density. The applied var…
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…
Pasir besi adalah endapan pasir yang didalamnya terdapat kandungan mineral seperti hematite, ilmenite, magnetite, dan limonite. Pasir besi umumnya berwarna abu-abu gelap dan hitam. Kadar pasir besi…
Pasir besi merupakan salah satu mineral logam yang banyak dimanfaatkan untuk kebutuhan sehari-hari manusia. Keberadaan mineral utama seperti magnetit, hematit, ilmenit, firit, limonit pada pasir be…
Pasir besi merupakan endapan pasir yang mengandung berbagai mineral di dalamnya, diantaranya adalah mineral hematit (Fe2O3) yang merupakan salah satu material yang digunakan dalam industri pembuata…
Pasir besi berada pada urutan ke empat terbanyak unsur yang membentuk bumi. Penyebaran pasir besi di Indonesia terdapat di Pulau Sumatera, Jawa, dan Sulawesi. Salah satu bahan galian tambang yang s…
in modern times like today, humans are increasingly spoiled with various tools that make work easeir. However, this iron based equipment often corrodes, resulting in losses both in terms of user sa…
This research will use gray cast iron as a welding specimen using SMAW. Before being welded, the specimen was made of a single V seam. The electrode used was ENi-Cl. Cast iron is a mixture of iron …
This study aims to determine the effect of bone marrow fluid on scaffold to fluid flow characteristics and scaffold permeability. The main contribution of this research is obtaining the optimum per…
In an industrial world that continues to grow rapidly as it is today, there is no denying the use of gray cast iron is very widely used because it is a very important material in the manufacture of…
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…
This article represent a study of conceming industrial performance analysis Bar and Fence of exist in the Palembang city. To see the performance created at this industry is studied by through added…