product news/產品新聞
Preventing Flake Graphite Formation in High Volume CGI Blocks
阻止大批量蠕墨铸铁缸体生产中片状石墨形成 As automakers seek ever greater fuel economy, engine
performance and durability, compacted graphite iron (CGI) engine blocks are becoming increasingly popular. CGI allows metalcasters to produce a more compact block with thinner walls, without sacrificing stability or strength, at a weight comparable to aluminum. Tupy, a cast iron cylinder block and head producer head-
quartered in Brazil, recently received an order for a new high volume CGI passenger vehicle cylinder block to be produced at its North American base in Saltillo, Mexico. Following the start of production this year, the order calls for a ramp- up to more than 300,000 cylinder blocks per year, reportedly making the new program the highest volume CGI cylinder block in the world. Te challenge to producing CGI blocks lies in the forma- tion of flake graphite, resulting in a reported 25% to 40%
随 着汽车制造商追求更好的燃油经济性、发动机性 能以及稳定性，蠕墨铸铁（CGI）发动机缸体变得越来 越流行。CGI允许铸造厂在
不牺牲稳定性和力学性能的前提下，利用更薄的壁厚即 可以生产出结构更致密的缸体，质量和铝差不多轻。 Tupy是一家总部位于巴西的铸铁缸体和缸盖生产 商，他们最近接到了一个新的大批量轿车缸体的订单， 将在其位于墨西哥萨尔提略的北美基地生产。随着今年 的生产开始，订单要求的产量高达每年30万个缸体， 这可能是见诸报道的世界上蠕墨铸铁缸体批量最大的项 目。
制造CGI缸体的挑战在于片状石墨的形成，会导致机
The core shop at Tupy’s North American base in Saltillo, Mexico, is highly automated.
Tupy在墨西哥的北美基地高度自动化制芯工厂 May 2013
FOUNDRY-PLANET.COM | MODERN CASTING | CHINA FOUNDRY ASSOCIATION | 51
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