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Heavy Yttrium on chromium alloy white cast iron and properties of

Casting process for the growth of more than casting out rows, each two-story buried in sand box mold, high efficiency; by pouring system feeding, feeding effect; casting surface quality improved significantly. Keywords: EPC; hood; more than casting CLC: TG249.5 Document code: B Article ID :1003-8345 (2006) 05-0036-03UsingEPCProcesstoProduceaFluctuationAirNoz ~ eCastingLIWei,[link widoczny dla zalogowanych], ZHANGSheng-yun (TonglingGeneralNonferrousMetallurgicalMachineryw0rks.Tongling244022. China) Abstract: EPCprocesswasadoptedforproductionofanheatresistantcastironairnozzleforfluctuationburningfurnace. TheRTSi-5.5gradeheatresistantcastironwasmeltedinamedium-frequencyinductionfurnace. Thereweretwolayersofcastingsinamould, andcastingsineverylayerwerearrangedhorizontallyinalongrow. Thereforethepmductivityisquitehigh. Gatingsystemwastakenasthecommonfeederofcastings, andgoodfeedingeffectwasobtained. Byusingthisprocess, thesurfacequalityofcastingswasobviouslyimproved. Keywords: EPCprocess; airnozzle; multiplecastingspermould Received: 20O6 a o7-27 wind (jet) is a sintering plant, J boiling furnace bottom device, furnace Author: ~, (1962 a), male, Guichi, college, engineers,[link widoczny dla zalogowanych], and research within the material by the wind to blow boiling and sintering temperature higher than the research direction of casting and wear-resistant materials, e-mail: jc-liwei @ tlys. an. Above 800 ��, the more severe operating conditions. Roaster election in gold after only YFB modifier alloy composition and properties shown in Table 5. Through the modification of casting hardness and impact toughness in the state of cast and heat treatment have been improved. The casting cost savings from 3000 to 3800 yuan per ton. The service life of castings installed increased by 7% to 10%,[link widoczny dla zalogowanych], the average had increased by 8% ore capacity to 12%. Achieved remarkable economic benefits. Table 5 alloy composition and hardness, impact toughness Tab. 5Alloyscomposition, hardnessandimpacttoughness4 Conclusion modifier in the properties of heavy rare earth elements yttrium, because of their decision. The variable 36I Modern Cast Iron 2006 / 5 is better than the quality of light rare earth cerium. Modifier of low, high chrome alloy white iron Mc, Mc excellent shape carbides refine, refine the primary A, strengthen the matrix structure to improve the hardness and impact toughness and other mechanical properties. Manufacturers of application example shows that using the modifier can reduce the Mo, Ni, Cu addition amount of alloying elements such as,[link widoczny dla zalogowanych], achieve good economic returns. References resistant ��1] Zhou Jiyang. ��Color Metallography of cast iron M]. Beijing: Mechanical Industry Press :216-217. ��2�� Qin Zirui. Re-B on the low alloy white cast iron of the modification effect of E1 ��J1. China Foundry Machinery & Technology, 1998,[link widoczny dla zalogowanych], (1): 14. ��31 ~ 2 rich. Ball of white cast iron carbides ��JI. Modern Cast Iron, 1995, (3) :28-32. [4J Guo Erjun. LREE recession on the properties of ductile iron resistance ��J1. Chinese Rare Earth Society, 2003, (2) :43-47. ��5] Shengda, Guo Cheng will. Rare-earth iron [M]. Beijing: Metallurgical Industry Press :55-56.

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