，Refining Steel With Pig Iron(GB/T717-1998)
Refining Steel With Pig Iron (GB/T717-1998)
Steel refining is a process of producing high-grade alloy and metal from pig iron. Pig iron refers to the iron ore that has been extracted from the earth and contains a high percentage of iron. Steel refining is one of the most important metalworking processes and dates back to ancient times. Steel refining is also known as smelting and is essential in producing steel products of different shapes and sizes. Pig iron is used in steel production as a result of its high iron content and solidity.
The first step in steel refining is the preparation of the pig iron. This is done by heating it in a furnace until it becomes liquid. The temperature needed varies depending on the type of pig iron used. The pig iron is then melted down and then cooled, forming a cake-like material. This is then milled into a powder or sold as a solid in the form of particles. The milled material is then ready to be used in steel refining.
The second step of steel refining is adding flux and slag. At this stage, the pig iron is heated further, allowing the pig iron to chemically react with the flux and slag materials, creating a fusing reaction that produces molten steel. The type of flux and slag used in this reaction can affect the grade, shape, and size of the finished product.
Once the steel has been produced, it is further refined. This involves the addition of carbon and other elements to further adjust the steels grade and characteristics. The process may also involve further manipulation to yield the desired shapes and sizes of steel.
Depending on the desired grade and use of the steel, different techniques are used in the refining process. Large-scale steel production typically involves multiple refining techniques, involving a combination of various fluxes and slags, with each step helping to purify and enhance the steel.
The standard for steel refining is an internationally-recognized set of rules called the GB/T717-1998. This standard applies to the production of pig iron and steel and is used as a basis for consistency, quality control, and uniformity in the production process of steel.
The GB/T717-1998 standard serves as a guideline for all steel refineries, steel manufacturers and producers, and the raw iron ore producers. In essence, the GB/T717-1998 standard serves as a benchmark and a set of guidelines that ensure the quality, safety, and consistency of steel production. Steel refineries and raw iron ore producers are required to abide by the procedures and regulations set forth in the GB/T717-1998 standard.
As such, the GB/T717-1998 standard is essential to the consistent production of high-grade steel products. The GB/T717-1998 standard ensures that the safety and quality of steel production are preserved and maintained. By following the guidelines in the GB/T717-1998 standard, steel production can be made more efficient and consistent. It also helps to reduce the risks of injuries and accidents from steel production, ensuring the safety and well-being of workers and the environment.
