公开(公告)号：US06508981B1

公开(公告)日：2003-01-21

申请号：US09865060

申请日：2001-05-24

Applicant: A. Renaud Perrin ,  Gene B. Burger ,  Gangjun Liao

Inventor： A. Renaud Perrin ,  Gene B. Burger ,  Gangjun Liao

IPC: C22C3704

CPC classification number: C22C37/04 ,  C22C33/08 ,  C22C37/10

Abstract: A nodular or compacted graphite iron contains up to 6% aluminum, with high strength and good ductility over a wide temperature range, combined with excellent hot oxidation resistance and improved thermal fatigue resistance compared to ductile and SiMo ductile irons. The iron alloy of the invention contains, in addition to iron, from about 1 to about 6% aluminum, from about 2 to about 4.5% silicon, carbon in an amount where the weight percent carbon plus ⅓ the weight percent of silicon is up to about 5.2%, greater than or equal to about 0.02% cerium and up to about 1.5% molybdenum. All percentages are based on the total weight of the composition. The compositions may further contain up to about 7% nickel by weight.

Abstract translation: 结节或压实的石墨铁含有高达6％的铝，在宽的温度范围内具有高强度和良好的延展性，与延性和SiMo延性铁相比，具有优异的耐热氧化性和改善的耐热疲劳性能。 除铁之外，本发明的铁合金还含有约1至约6％的铝，约2至约4.5％的硅，其中碳的重量百分比加上硅的重量百分比为1/3的量为 高达约5.2％，大于或等于约0.02％的铈和至多约1.5％的钼。 所有百分数都是基于组合物的总重量。 组合物还可含有高达约7重量％的镍。

公开(公告)号：US08454764B2

公开(公告)日：2013-06-04

申请号：US12919044

申请日：2008-02-25

Applicant: Robert Logan ,  Delin Li ,  Shuzhi Yu ,  Gangjun Liao

Inventor： Robert Logan ,  Delin Li ,  Shuzhi Yu ,  Gangjun Liao

IPC: C22C37/08 ,  C22C37/04 ,  F02B53/00

CPC classification number: C22C37/04 ,  C22C37/08 ,  C22C37/10

Abstract: A nodular graphite, heat-resistant cast iron composition for use in engine systems. The composition contains carbon 1.5-2.4 weight %, silicon 5.4-7.0 weight %, manganese 0.5-1.5 weight %, nickel 22.0-28.0 weight %, chromium 1.5-3.0 weight %, molybdenum 0.1-1.0 weight %, magnesium 0.03-0.1 weight %, and a balance weight % being substantially iron. The composition has an austenitic matrix. Additionally, the composition exhibits excellent oxidation resistance at high temperature and excellent mechanical properties at both room and high temperatures. Thus, the composition can be a lower cost substitute material for Ni-Resist D5S under thermocycling conditions experienced by exhaust gas accessories and housings such as engine exhaust manifolds, turbocharger housings, and catalytic converter housings.

Abstract translation: 用于发动机系统的结节状石墨，耐热铸铁组合物。 该组合物包含1.5-2.4重量％的碳，5.4-7.0重量％的硅，0.5-1.5重量％的锰，22.0-28.0重量％的镍，1.5-3.0重量％的铬，0.1-1.0重量％的钼，0.03-0.1重量％ ％，平衡重量％基本上为铁。 该组合物具有奥氏体基质。 此外，该组合物在高温下表现出优异的抗氧化性和在室温和高温下都具有优异的机械性能。 因此，组合物可以是由排气附件和诸如发动机排气歧管，涡轮增压器壳体和催化转化器壳体的壳体经历的热循环条件下的Ni-Resist D5S的较低成本替代材料。

公开(公告)号：US20080274005A1

公开(公告)日：2008-11-06

申请号：US11913596

申请日：2006-05-04

Applicant: Gangjun Liao ,  Delin Li ,  Gene B. Burger ,  Robert N. Logan

Inventor： Gangjun Liao ,  Delin Li ,  Gene B. Burger ,  Robert N. Logan

IPC: C22C37/10 ,  C22C37/00 ,  C22C37/06

CPC classification number: C22C37/10 ,  C21D5/00 ,  C22C33/08 ,  C22C37/04

Abstract: A nodular, compacted graphite or other hybrid or duplex graphite morphology cast high silicon iron is disclosed which contains up to 1.5% tungsten, up to 0.8% vanadium, and up to 1.2% niobium; and at least 60.0% iron, all percentages are based on the total weight of the composition. This cast iron exhibits high strength and good ductility over a wide temperature range compared to the conventional SiMo ductile iron. The compositions may further contain, up to 1.5% molybdenum and up to 1.0% chromium to offer improvements in material strength. The compositions may include 0.2 to 0.5% by weight aluminum and up to 1.2% chromium for further oxidation resistance and 0.5 to 5.0% nickel for corrosion resistance.

Abstract translation: 公开了一种结节状，压实的石墨或其他混合或双相石墨形态铸造的高硅铁，其含有高达1.5％的钨，至多0.8％的钒和至多1.2％的铌; 和至少60.0％的铁，所有百分比均基于组合物的总重量。 与传统的SiMo球墨铸铁相比，这种铸铁在宽的温度范围内表现出高强度和良好的延展性。 组合物还可含有至多1.5％的钼和至多1.0％的铬以提供材料强度的改善。 组合物可以包含0.2至0.5重量％的铝和至多1.2重量％的铬以用于进一步的抗氧化性，以及0.5-5.0％的镍用于耐腐蚀性。

公开(公告)号：US20110011070A1

公开(公告)日：2011-01-20

申请号：US12919044

申请日：2008-02-25

Applicant: Robert Logan ,  Delin Li ,  Shuzhi Yu ,  Gangjun Liao

Inventor： Robert Logan ,  Delin Li ,  Shuzhi Yu ,  Gangjun Liao

IPC: F01N13/16 ,  C22C37/08 ,  C22C37/10

CPC classification number: C22C37/04 ,  C22C37/08 ,  C22C37/10

Abstract: A nodular graphite, heat-resistant cast iron composition for use in engine systems. The composition contains carbon 1.5-2.4 weight %, silicon 5.4-7.0 weight %, manganese 0.5-1.5 weight %, nickel 22.0-28.0 weight %, chromium 1.5-3.0 weight %, molybdenum 0.1-1.0 weight %, magnesium 0.03-0.1 weight %, and a balance weight % being substantially iron. The composition has an austenitic matrix. Additionally, the composition exhibits excellent oxidation resistance at high temperature and excellent mechanical properties at both room and high temperatures. Thus, the composition can be a lower cost substitute material for Ni-Resist D5S under thermocycling conditions experienced by exhaust gas accessories and housings such as engine exhaust manifolds, turbocharger housings, and catalytic converter housings.

Abstract translation: 用于发动机系统的结节状石墨，耐热铸铁组合物。 该组合物包含1.5-2.4重量％的碳，5.4-7.0重量％的硅，0.5-1.5重量％的锰，22.0-28.0重量％的镍，1.5-3.0重量％的铬，0.1-1.0重量％的钼，0.03-0.1重量％ ％，平衡重量％基本上为铁。 该组合物具有奥氏体基质。 此外，该组合物在高温下表现出优异的抗氧化性和在室温和高温下都具有优异的机械性能。 因此，组合物可以是由排气附件和诸如发动机排气歧管，涡轮增压器壳体和催化转化器壳体的壳体经历的热循环条件下的Ni-Resist D5S的较低成本替代材料。