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How to check Quality of Reinforcement Steel bars used for Construction Site?

Sep 8,2021

The quality and reinforcement test is a necessity to check the basic characteristics of the material that you are aiming to utilize in an application. The quality checks help to maintain the standard according to the needs and examine the type of material that is being used in the core procedures. The tests that might be carried out can contain examinations like bending test, tension testing, examining of the testing site, and the ability of the materials to withstand heat and weight in certain cases. The proper inspection of the steel is a crucial part of any steel-related application as it helps to introspect the shortcomings of the product to avoid any imperfections in the final product. The tests might vary depending on the grade of steel that is being used in an application, and it can rely on the conditions in which the test is taking place. Different manufacturers suggest various heat and tension tests be conducted with steel before using the raw material in the construction procedures to avoid the weakening of the foundation of any intended application. The intensity of the tests that are being conducted might vary depending on the conditions of the steel bar, the surroundings of the place where it's being performed, and the force that is applied in an application. Here are a few basic tests that are a must to conduct on various grades of steel Bend Test The bend test involves the bending of corrosion-resistant steel rebars under an applied pressure with 180° angle. The test is crucial to look out for any potential cracks that might be involved in weakening the steel rod is used as a foundational material in any application. After the first bending procedure has been done, the sample goes through the second phase of rebending, where it is treated under an angle of 135°. The sample can be kept in boiling water set up at 100 degrees temperature for nearly 30 minutes. After the cooling procedures take place, it's again bent to nearly 157.5°. Tension Test The tension tests are conducted on a steel bar to understand the behavior of the materials when a certain amount of force is applied during an application. Tension tests might be seen as the diverse parameters to comprehend the factors such as the tensile strength, yield strength, and the elasticity of the steel sample involved in an intended application. The metal-like steel goes through methods including pulling and applying a drastic amount of force to determine the nature of weight and elasticity it can go through during an application. Yield Strength Test The yield strength test can be described as a process in which the cross-section of a metal such as the stainless steel is determined; then, it's pulled with force to a point where there are any visible signs of change such as a change in shape, size or any notable characteristic. Chemical Analysis When we talk about the chemical analysis of a steel bar, then it's important to understand that the following testing measures might be important in some cases. It is used to determine the behavior of a metal in the presence of any kind of chemical and the reactions that might take place when the following materials are brought in contact for an application. The chemical analysis becomes mandatory if the metal is being treated in the presence of various chemical mixtures with the involvement of heat and other elements.  Mass Per Meter Run The test might involve a minimum of 4 sample bars are used to conduct the following tests. A nearly 1-meter-long portion of the steel is taken out of the reinforcement bundle to pass through the testing procedures. The length of each bar from four sides is recorded then each of them is weighed. Following the process, average weight is obtained (Out of 4-rod bars) to reach a conclusion. The process allows using the rods in other applications where it's important to have adequate knowledge about the total weight of the material involved. The measurement allows understanding the amount of rod that would be used in a procedure depending on a certain application. 

Types of Machinery Used in Coal Mining

Aug 6,2021

The process of coal mining is a complex task that involves multiple procedures to fulfill the given demand of a certain application. There are a number of tools and machinery involved in the process to achieve the prescribed targets that are expected to be fulfilled by a mining job. When we speak about coal mining, then it is essential that we know there are different types of coal mining, and each might need specialized tools that would become an apparatus to obtain the desired results. The equipment required for a mining job is widely available at different supplier networks, and there are also options where you can get a machine that is targeted to meet your specific mining requirements. Coal machinery qualifies as an industrial need, so the price point of these machines is relatively high, but they can be extremely useful in the case of extensive coal mining applications. If you need coal-related machinery, then you can always get in touch with a certified Indonesian coal supplier and fulfill your needs. Mining and Equipment   When we are thinking about different mining applications, then it's essential that we are aware of the types that might be required depending on the proposed outcome. Basically, there are two types of mining, namely surface mining and underground mining, each requiring a different set of machinery and tools to get the desired result. The thing that connects both types of mining is the type of equipment that is needed to obtain the required effect. The first part that goes into both kinds of mining is called extraction, and it involves a wide array of applications such as drilling, digging, and blasting. The term extraction can also be used to describe the removal process of certain materials from the mining site. The second step involves material handling that is a crucial factor because it includes assortment and load management that might be necessary to initiate a successful mining job. In many cases, it might also include the management of the waste that is left after several mining procedures. In the final step, there are requirements such as crushing, grinding, and refining, all of which are necessary to obtain the final product. Here are a few types of machinery used in coal mining   Hydraulic Mining Shovels The hydraulic mining shovels feature a shovel that is used to carry different raw materials from point A to point B. They feature either wheels or tracks and are capable of tackling different kinds of loads involved in a mining job. They have gotten effective with time and are an essential component of any mining-related application.   Large Mining Trucks There are different kinds of heavy-duty trucks that are used to carry different tools, equipment, and material within the premise of a mining site. These trucks are designed quite unconventional to facilitate the required usage. They feature extra-large wheels that make them capable of moving around the rough patches that might be present at a mining site. They come in several transmissions, including electric, which is designed to be environment friendly and energy-efficient.   Rotary Drill Rigs When it comes to the digging part of the mining process, the rotary drill rigs are of immense importance. They are utilized to dig different sizes of holes that are essential to carry out the extraction process in a coal mining job.   Grinder The grinders used in a coal mining application are responsible for the grinding and crushing of the raw material involved in different mining procedures. They are designed to be heavy-duty and can function around the clock in suitable conditions.   Scrapers The primary application of a scrapper is to get rid of the residue and the remaining raw material from a mining site once the coal mining procedures are over. They come in different capacities and are intended to withstand various degrees of the load depending on the required application.   Draglines The draglines are utilized to collect the mining material that is the outcome of the entire process. They feature a bucket that is supported by ropes and is responsible for carrying and managing the mining product in the required container. There are several scenarios where the capacity of each dragline might vary depending on the amount of mined material it can carry.      

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