Hebei Fengchao Import and Export Co., Ltd. is one of the most reliable manufacturers and suppliers of graphitized carburizer 0-1mm in China. With a professional production team, we are able to meet the needs of the majority of our customers. If you're going to wholesale bulk graphitized carburizer 0-1mm made in China, welcome to get pricelist from our factory.
This 0-1mm graphitized carburizer undergoes crushing and screening with precisely controlled particle size distribution. Its well-developed graphite crystal structure enables carbon to diffuse uniformly within the molten metal bath and mitigates local carbon segregation. The fine particle grade suits rapid feeding operations in induction furnaces and delivers stable carbon recovery, helping foundries narrow the fluctuation range of molten iron composition during mass production.
This 0-1mm graphitized carburizer is treated by ultra-high-temperature graphitization and features a loose flaky graphite structure with relatively low nitrogen content. It dissolves rapidly after being charged into molten iron, with few insoluble solid particles remaining at the furnace bottom. Fine particles disperse freely in turbulent molten metal and shorten the overall carburizing time. Besides smelting nodular cast iron and gray cast iron, it is also applicable to the production of wear-resistant castings. It can effectively ease the recrystallization tendency of castings and restrain cementite precipitation inside castings.
This 0-1mm graphitized carburizer adopts low-ash calcined petroleum coke as raw material. Manufactured on dedicated crushing and sorting lines, it goes through raw material grading assay, ultra-high-temperature graphitization, temperature-controlled cooling, impact crushing, multi-layer screening and magnetic iron removal. Our technical team optimizes the cooling gradient process after graphitization to minimize brittle microcracks inside particles. The factory regularly conducts particle size distribution and elemental spectrum tests for each batch, and adjusts particle size curves according to customers' induction furnace melting tonnage. The company holds ISO9001 and ISO45001 management system certifications. Each shipment is inspected for fixed carbon, sulfur, nitrogen and particle size indicators, supplying stable-quality carbon additives for medium and large foundry enterprises.
Factory Tour
FAQ
Q: What problems will occur when the dust content of the 0-1mm fine-particle graphitized carburizer is excessively high?
A: Excessive dust tends to float heavily on the surface of molten iron. Part of the dust is burned and lost with furnace gas, resulting in fluctuating carbon recovery and making it difficult to control the carbon content of molten iron.
Q: Why is the magnetic iron removal process mandatory for this fine-grained graphitized carburizer?
A: Tiny iron scraps will be mixed in during crushing. If not removed by magnetic separation, iron impurities will remain inside the castings and form exogenous inclusion defects.
Q: Can the 0-1mm graphitized carburizer be directly charged into the furnace together with scrap steel at the initial charging stage?
A: It is not recommended. Due to its fine particle size, a large proportion will be oxidized and burned at the high temperature in the early melting stage. It is more suitable for feeding in the middle of melting.
Q: What impact will high moisture content of the carburizer exert on the nodulizing effect of nodular cast iron?
A: Excess moisture decomposes and releases hydrogen at high temperatures, easily causing hydrogen pinhole defects in castings and significantly reducing the graphite nodule grade of nodular cast iron.
Q: What hidden risks will humid warehouse conditions bring to bulk storage of the 0-1mm graphitized carburizer?
A: Fine powder readily absorbs moisture and agglomerates after dampness, making uniform spreading difficult during subsequent smelting feeding.
Q: When using the 0-1mm graphitized carburizer in medium-sized induction furnaces, what practical methods can further improve carbon absorption rate?
A: Appropriately extend the molten iron stirring time after feeding. Sufficient stirring facilitates full contact between particles and molten iron and promotes complete dissolution of the graphitized carburizer.
Hot Tags: graphitized carburizer 0-1mm, China graphitized carburizer 0-1mm manufacturers, suppliers, factory
