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This post was last edited by Huatu Metallurgy on 2019-6-13 at 11:07. Nowadays, an increasing number of steel mills and foundries are using carbonizers in their manufacturing processes, which has led to chaos in the carbonizer market – with product quality varying greatly. Finding high-quality carbonizers has become the biggest challenge for purchasing companies. This article explains how to identify good carbonizers, hoping that companies looking to purchase them can use these methods to find superior products! When manufacturing castings, the choice of carbonizer is important, but the method of use and the proportion used are also crucial. https://bbs.hcbbs.com/forum.php?mod=image&aid=1913083&size=300x300&key=857ff9422d0cd4cc&nocache=yes&type=fixnone 1. Generally, when using carbonizers, it is important to choose the appropriate particle size based on the size of the furnace; particle sizes of 1-5 mm are commonly used. 2. When using a carbonizer in cupola melting, it is necessary to minimize the amount of pig iron used as feedstock; at the same time, the feedstock must be free of oil and rust in order for the carbonizer to ensure a high carbon equivalent and to allow for an increased use of scrap metal. 3. A graphitized carburizer, that is, a graphitized carbon source, must be selected in order to exhibit graphitization effects. In this way, under high-temperature melting conditions, carburization can be used to achieve good activity; the morphology of graphite is reflected in the castings, which helps to improve mechanical properties, reduce shrinkage tendencies, and enhance workability. 4. Usage: Generally, it is added together with other furnace charges; starting from the second batch, the carbon-enhancing agent contained in plastic bags is placed on the surface of the remaining molten iron, which amounts to 20–40 kilograms. Generally, the amount of carbonizer required is 4 kilograms per 100 kilograms of scrap steel added; this ratio is considered appropriate for using carbonizer. Reputable carbonizer manufacturers generally have strict quality management systems and scientific, rational management protocols. A company that operates in a standardized manner must possess professional and large-scale production capabilities. The development of carbonizer products is guided by market demands, with an emphasis on adapting to changes in the market, meeting customer needs, fostering innovation, and being proactive in seeking new opportunities. Judging the quality of carbonizers indirectly by looking at the scale of the manufacturers is also one of the ways to determine their quality. Generally, a reputable carbonizer manufacturer invests heavily in terms of scale and equipment; in a competitive market, such a manufacturer has withstood various tests, and thus its carbonizer products are of higher quality. Here are some effective tips for assessing the quality of carbonizers! To find good carbonizers, it’s necessary to have certain product knowledge and selection skills. First, we need to assess the quality of the carbonizer product – generally, good carbonizers have a darker color and greater brightness. Additionally, their particle size should be uniform. To determine whether the carbonizer meets our production requirements, we can request samples to be sent back to the factory for testing to check if the content indicators are within standard ranges. Those without testing facilities can also try using the carbonizer on a trial basis, and only after confirming that it suits the production needs should bulk purchases be made. Be sure not to overlook the certification certificates for carbon additives. Manufacturers of such additives usually have their products undergo authoritative third-party certification; once the approval process is completed, the third-party certification body issues a certificate. These third-party organizations are highly reputable and will not issue fake test results indicating the content of carbon additives in exchange for payment. Therefore, it is essential not to ignore the certification certificates for carbon additives, as they serve as an important indicator of their quality. By following these tips, one can generally find good quality carbonizing agents, avoiding the purchase of inferior ones that do not meet production requirements and thus preventing various losses in production; this helps to produce high-quality products and improves the efficiency of manufacturers! Below are several examples of high-quality carbonizing agents for your reference and use in making judgments