INDUSTRY NEWS/行業新聞 Siempelkamp Giesserei Makes Ring Gears for Piet van der Wegen
Siempelkamp铸造公司为Piet van der Wegen公司生产齿轮环 For many years, Siempelkamp Giesserei, Krefeld, Ger-
many, has delivered high quality and demanding ring gear segments to Piet van der Wegen BV in Tilburg, Netherlands. Te metal casting supplier manufactures 90 and 180-degree cast component segments that are screwed together via flange constructions to complete one 360-degree component. Siempelkamp casts these segments in high-alloyed ductile cast iron materials that meet the highest strength require- ments. One of the important prerequisites of the ring gear sprockets is good wear resistance. “Our cooperation is based on a high degree of trust and
characterized by highest technical demands,” said Dirk Howe, sales manager, Siempelkamp. “Te raw castings of these giant components must be 100% error-free. And in spite of the metallographic matrix, they need to feature homogeneity and sufficient hardness. Deviations would have fatal consequences within machining. We endeavor to elimi- nate this risk always in advance.” Te casting process is very complex with respect to mold
technology. After determining the correct metallurgy, a high-temperature annealing takes place. Te gear wheels have diameters of up to 16.5 m and raw casting weights of up to 180 tons. Following the trend towards bigger and bigger mills with gear rim drives in the field of mining,
P.van der Wegen Gears recently invested in a new manufactur- ing site and is now able to machine ring gears of up to 22 m in diameter, which is unique in the world. Siempelkamp is equipped to meet the challenge of incoming orders for ever- bigger designed cast components for the milling industry. Besides their
good business rela- tionship, Piet van der Wegen Gears BV, Netherlands, and Siempelkamp Giesserei, have much in common: both are looking back on more than 130 years of com- pany history, both are family-owned since their founda- tion and also both are world market leaders in their business areas. ■
多年以来，德国克雷菲尔德的Siempelkamp铸造 公司为荷兰蒂尔堡的Piet van der Wegen公司提供了 高质量的齿轮环。Siempelkamp铸造公司生产的90和 180度的铸件通过法兰连接在一起，成为360度的环形 铸件。Siempelkamp公司生产的高合金球墨铸铁件， 可满足最高强度的要求。齿轮环的链轮齿最重要的特性 是具有良好的耐磨性能。
“我们的合作是建立在高度信任的基础上，特点是技 术要求高，”Siempelkamp公司销售经理Dirk Howe 说，“这些大组件的原始铸件必须100%无误差，考虑 到其金相组织，铸件需具备相同的力学性能和足够的硬 度。然而，出现偏差可能在机加工过程中导致严重的后 果。我们要努力预先规避这些风险。” 铸造成型技术非常复杂。在确定了正确的熔炼工艺 后，需要进行高温退火。齿轮的直径可达16.5米，原始 铸件重达180吨。随着采矿业所使用的齿轮传动设备越 来越大，
P.van der Wegen齿轮公司最近投资新建了新 的生产基地，能够加工直径达22米的齿轮环，这是世界 上独一无二的。Siempelkamp公司已具备满足铣削设 备行业对于越来越大的铸件订单的要求。 除保持着良好的业务关系外，Piet van der Wegen 齿轮公司和
Siempelkamp铸 造公司有很多共 同点：二者皆已 有130多年的发展 历史，都是从家 族企业成长起来 的，二者都是其 所在行业的国际 市场领导者。 ■
A 180-degree ring gear half is trans- ported after fettling.
一个180度旋转的 环形齿轮经清理后 进行装运。
September 2014
FOUNDRY-PLANET.COM | MODERN CASTING | CHINA FOUNDRY ASSOCIATION | 41
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40 |
Page 41 |
Page 42 |
Page 43 |
Page 44 |
Page 45 |
Page 46 |
Page 47 |
Page 48 |
Page 49 |
Page 50 |
Page 51 |
Page 52 |
Page 53 |
Page 54 |
Page 55 |
Page 56 |
Page 57 |
Page 58 |
Page 59 |
Page 60 |
Page 61 |
Page 62 |
Page 63 |
Page 64 |
Page 65 |
Page 66 |
Page 67 |
Page 68 |
Page 69 |
Page 70 |
Page 71 |
Page 72 |
Page 73 |
Page 74 |
Page 75 |
Page 76 |
Page 77 |
Page 78 |
Page 79 |
Page 80 |
Page 81 |
Page 82