product news/產ռ新聞


Furnace Retrofit Boosts Melting Capacity for Alabama Iron Caster Two coreless induction furnaces at the Grede Holdings


LLC facility in Brewton, Ala., recently turned 40 years old. But thanks to a recent project between Grede and ABP Induction Systems, North Brunswick, N.J., the pair is hardly showing any signs of age. A retrofitting operation in 2014 has boosted overall output, while keeping downtime service interruptions at a minimum. Following the 2010 merger between Citation Corp. and


Grede, the Brewton facility began working with new iron alloys on its two vertically parted molding lines. Te two nine-ton furnaces were dedicated to a single molding line, but struggled to keep up with increased demand for a new ductile iron alloy. Kenny Roley, foundry manager, Grede-Brewton, initially explored the possibility of installing new furnaces, but spatial requirements, investment limitations and production demands made that option a difficult proposition. Grede-Brewton contacted ABP Induction to discuss pos-


sible incremental improvements for its melting operations. “Many metalcasters are not aware of how dramatically


productivity can be improved with an existing older fur- nace,” said Daniel Green, technical director, ABP Induction. “Te cost of retrofitting an older system is much less than installing a new furnace, primarily because the foundation, decking structure, and furnace body can be saved.” ABP and Grede-Brewton agreed on a plan to retrofit the first of the 9-ton furnaces in 2014, making improvements to all aspects of the melting system, including: • Upgraded 5,000 KW, 180 Hz power supply.


• New water cooling system utilizing a triplex pump-stand with back- up pump.


• Power supply loop with de-inonizer system.


• Increased insulation spacing between turns for greater resistance to arcing between turns.


• New coils to accommo- date the higher power level that were built with a larger copper profile to increase strength and rigidity.


阿拉巴马州铸造Գ改造电炉提升熔炼ৗ力 Ֆ无ਯ感应 ङ՛Ҹ股控KJKX-ङ顿鲁٢州马巴拉阿


٢北州西泽新չ՛ҸKJKX-过通Ѹ，年 炉ङ炉龄已有 Ѱ瑞ұङ'(6感应系统Ҹ՛近期合ҁङ改造项ऩ，这 年ङ改造措 。龄炉ङ长此ײ有ӟЉर本ׂ炉应感Ֆ 。ش最ӱӗ间时机Ҡر，时գ，ਈфѽ整д高提已施 顿鲁٢，ե并Ӄ֝集TUOZGZO)Њ՛ҸKJKX-年 ֨


Ֆ 这。ў铁铸ф生ি型ӣफָ条 ङ铸造Դ已开始用 吨ङ熔炼炉О 条造型ি供应铁液，Ѹ是ё难љ满足球 造铸顿鲁٢՛ҸKJKX-。求需ф生ङ长增ञ日ў铁铸墨 Դङ铸造经理1KTT_ 8URK_最үू९д安装新熔炼炉ङ Օਈ性，Ѹ是Չӱ空间、投资չфਈङ限Ӳ，安装新熔 炼炉ङ抉择难љ实施。


д得Ո՛Ҹ统系应感6('ЊԴ造铸顿鲁٢՛ҸKJKX- 。造改ङ式进渐੧进וગ炼熔ث讨探，系联 熔旧ङ有现造改过通，ӱજ意有没都Դ造铸ך很Ȕ


炼炉就Օљ显ੋ提高生ф率，ȕ'(6感应系统Ҹ՛技术 总ड*GTOKR -XKKTપ：Ȕ改造旧系统ङ成本比安装一Ֆ 构ৈङՖ平炉、ׂ֪וગО֜是要П，ך得Ѻ要וગ新 չ炉ѽ本૯都Օљ得ӱґऊ。ȕ Դ造铸顿鲁٢KJKX-չ՛Ҹ统系应感6('，年


熔ث，造改੧进炉炼熔ङ吨 Ֆ一আث，ઑ协ҁ合成达 炼系统进੧дҶ面ङ升 级，包括： О级升率功源电رș 1=


.`ͺ 泵 ङ泵用וխ包装安ș


新型Ӓ却系统ͺ 子ख़Ծ加增૨֛电供ș


系统ͺ ș增加匝间ङ্缘空 间，增强匝间抗电弧ङਈ 力ͺ 面截ם较用֥҅ি新ș Ӫչچ强加增，管铜ङ 。率功ङ高更应适љ，چ 年 ֨造改п这


月工ԴҠ工期间完成。通 部ғ维Դ造铸顿鲁٢Њ过 门ङ沟通，'(6感应系统


The power supply inverter was installed to allow for easy ac- cess for maintenance.


加更护维҅֘频Պ源电装安 便ӯ。


March 2016 FOUNDRY-PLANET.COM | MODERN CASTING | CHINA FOUNDRY ASSOCIATION | 65


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