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1.发明授权
公开(公告)号：US5993572A
公开(公告)日：1999-11-30
申请号：US728435
申请日：1996-10-09
CPC分类号： C22C1/005
摘要： In a thixocasting process, the following steps are used: a step of subjecting, to a heating treatment, an Al-Si based alloy material having a hypo eutectic crystal composition and a characteristic that a first angled endothermic section appearing due to the melting of a eutectic crystal and a second angled endothermic section appearing due to the melting of a component having a melting point higher than a eutectic point exist in a differential calorimetric curve, thereby preparing a semi-molten Al-Si based alloy material having solid and liquid phases coexisting therein; a step of pouring the semi-molten Al-Si based alloy material into a cavity in a casting mold under pressure; and a step of solidifying the semi-molten Al-Si based alloy material under pressure. When the temperature of a rise-start point in the first angled endothermic section is represented by T.sub.1, and the temperature of a drop-end point the first angled endothermic sections is represented by T.sub.2, the casting temperature T for the semi-molten Al-Si based alloy material is set in a range of T.sub.1 .ltoreq.T.ltoreq.T.sub.2. Thus, the fine precipitation of a primary crystal Si phase can be realized to provide an increase in strength of an aluminum alloy cast product.
摘要翻译： 在触媒处理中，使用以下步骤：对具有低共晶组成的Al-Si系合金材料进行加热处理的步骤，以及由于熔融而形成的第一成角度的吸热部 由于熔点高于共晶点的熔点高于共晶点而出现的共晶晶体和第二倾斜的吸热部分存在于差示热量曲线中，从而制备具有固相和液相的半熔融Al-Si基合金材料共存 其中 将半熔融的Al-Si基合金材料在压力下浇注到铸模中的空腔中的步骤; 以及在压力下使半熔融Al-Si系合金材料凝固的工序。 当第一倾斜吸热部分中的起始点的温度由T1表示，并且下降端点的温度将第一倾斜吸热部分表示为T2时，半熔融Al- Si基合金材料设定在T1
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2.发明授权Alloy material for thixocasting, process for preparing semi-molten alloy material for thixocasting and thixocasting process 失效用于触媒的合金材料，用于制备用于触变和触变过程的半熔融合金材料的方法
公开(公告)号：US5849115A
公开(公告)日：1998-12-15
申请号：US861265
申请日：1997-05-21
CPC分类号： C22C1/005 , G01N33/20 , Y10S164/90
摘要： A differential thermal analysis thermograph for a thixocasting aluminum alloy material is such that, a relationship, E.sub.1 >E.sub.2, is established between a peak value E.sub.1 of a first angled endothermic section generated by eutectic melting and a peak value E.sub.2 of a second angled endothermic section generated by melting of an element having a melting point higher than the eutectic point. Thus, a liquid phase produced by the eutectic melting has a large latent heat due to the fact that the peak value E.sub.1 of the first angled endothermic section is larger than the peak value E.sub.2 of the second angled endothermic section in a semi-molten eutectic aluminum alloy material derived from the thixocasting aluminum alloy material. As a result, in a solidification step of the thixocasting process, a liquid phase produced by the eutectic melting is sufficiently fed around a solid phase in response to the solidification and shrinkage of the solid phase, and then solidified. Thus, it is possible to produce a casting free from defects such as voids on the order of a micron.
摘要翻译： 用于触媒铝合金材料的差示热分析热成像仪是这样的，即通过由共晶熔融产生的第一倾斜吸热部分的峰值E1与第二成角度吸热部分的峰值E2之间建立关系E1> E2 通过熔点高于共晶点的熔点而产生。 因此，由于第一成角度吸热部的峰值E1大于半熔融共晶铝中的第二倾斜吸热部的峰值E2，所以由共晶熔融产生的液相具有大的潜热 衍生自thixocasting铝合金材料的合金材料。 结果，在固化步骤中，通过共晶熔融产生的液相，以固相的固相和收缩为固相充分地进料，然后固化。 因此，可以生产没有诸如微米级的空隙的缺陷的铸件。
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公开(公告)号：US6053997A
公开(公告)日：2000-04-25
申请号：US956188
申请日：1997-10-22
CPC分类号： B22D17/007 , C22C1/005 , C22C21/02 , C22C21/14 , Y10S164/90
摘要： In carrying out of a thixocasting process, a material in a semi-molten state is produced by heating an aluminum alloy material which has a thermal characteristic that a first angled endothermic section generated by the melting of a eutectic crystal and a second angled endothermic section generated by the melting of a component having a melting point higher than an eutectic point exist in a differential calorimetric curve. A start point of a primary pressing stage is established at a point when the temperature T of the material is in a range of T.sub.1
摘要翻译： 在进行触媒处理的过程中，通过加热铝合金材料来制造半熔融状态的材料，所述铝合金材料具有通过共晶晶体熔化产生的第一倾斜的吸热部分和产生的第二成角度的吸热部分的热特性 通过熔点高于共晶点的组分的熔融存在于差示量热曲线中。 在材料的温度T在第一角度吸热中的起始点的温度T1之间的关系中，在T1
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公开(公告)号：US5787961A
公开(公告)日：1998-08-04
申请号：US543196
申请日：1995-10-13
CPC分类号： B22D17/007 , C22C1/005 , C22C21/02 , C22C21/14 , Y10S164/90
摘要： In carrying out of a thixocasting process, a material in a semi-molten state is produced by heating an aluminum alloy material which has a thermal characteristic that a first angled endothermic section generated by the melting of a eutectic crystal and a second angled endothermic section generated by the melting of a component having a melting point higher than a eutectic point exist in a differential calorimetric curve. A start point of a primary pressing stage is established at a point when the temperature T of the material is in a range of T.sub.1
摘要翻译： 在进行触媒处理的过程中，通过加热铝合金材料来制造半熔融状态的材料，所述铝合金材料具有通过共晶晶体熔化产生的第一倾斜的吸热部分和产生的第二成角度的吸热部分的热特性 通过熔点高于共晶点的组分的熔融存在于差示量热曲线中。 在材料的温度T在第一角度吸热中的起始点的温度T1之间的关系中，在T1
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5.发明授权Casting material for thixocasting, method for preparing partially solidified casting material for thixocasting, thixo-casting method, iron-base cast, and method for heat-treating iron-base cast 有权用于触媒的铸造材料，用于制备部分固化的用于触媒的铸造材料的方法，触变铸造法，铁基铸造和铁基铸造的热处理方法
公开(公告)号：US6136101A
公开(公告)日：2000-10-24
申请号：US77169
申请日：1998-11-09
CPC分类号： C22C38/02 , B22D17/007 , C21D1/32 , C21D5/00 , C22C37/04 , C22C37/10 , C21D2211/006
摘要： A thixocast casting material is formed of an Fe--C--Si based alloy in which an angle endothermic section due to the melting of a eutectic crystal exists in a latent heat distribution curve and has a eutectic crystal amount Ec in a range of 10% by weight
摘要翻译： PCT No.PCT / JP97 / 03058 Sec。 371日期：1998年11月9日 102（e）日期1998年11月9日PCT 1997年9月2日PCT公布。 第WO98 / 10111号公报 日期：1998年3月12日一种触变铸造材料由Fe-C-Si基合金形成，其中由于共晶晶体的熔化而导致的角度吸热部分存在于潜热分布曲线中，并且具有共晶晶体量Ec 范围为10重量％
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6.发明授权Thixocast casting material, process for preparing thixocasting semi-molten casting material, thixocast process, fe-based cast product, and process for thermally treating fe-based cast product 有权Thixocast铸造材料，制备触媒半熔融铸造材料的方法，thixocast工艺，fe基铸造产品和用于热处理基于Fe的铸造产品的方法公开(公告)号：US06527878B1
公开(公告)日：2003-03-04
申请号：US09669219
申请日：2000-09-25
IPC分类号： C21D500
CPC分类号： C22C38/02 , B22D17/007 , C21D1/32 , C21D5/00 , C21D2211/006 , C22C37/04 , C22C37/10
摘要： A thixocast casting material is formed of an Fe—C—Si based alloy in which an angle endothermic section due to the melting of a eutectic crystal exists in a latent heat distribution curve and has a eutectic crystal amount Ec in a range of 10% by weight
摘要翻译： 触变材料铸造材料由Fe-C-Si基合金形成，其中由于共晶晶体的熔化导致的角度吸热部分存在于潜热分布曲线中，并且具有10％的共晶晶体量Ec在10％的范围内 重量
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公开(公告)号：US5803154A
公开(公告)日：1998-09-08
申请号：US766031
申请日：1996-12-16
申请人： Takeshi Sugawara , Nobuhiro Saito
发明人： Takeshi Sugawara , Nobuhiro Saito
CPC分类号： B22D17/007 , Y10S164/90
摘要： In a thixocasting process, a casting material is subjected to a heating treatment to prepare a semi-molten casting material having solid and liquid phases coexisting therein, and then, the semi-molten casting material is poured into a cavity under a pressure. A through-hole for applying a constricting effect to the material is provided in a flow path for the semi-molten casting material leading to the cavity in a casting mold. A material deforming pressure P.sub.1 immediately before the semi-molten casting material flows into the through-hole is used as a parameter. For example, the material deforming pressure P.sub.1 is equal to or lower than 6.7 MPa, it is determined that the material is satisfactorily filled in the cavity.
摘要翻译： 在触媒处理中，对铸造材料进行加热处理以制备其中固相和液相共存的半熔融铸造材料，然后将半熔融铸造材料在压力下倒入空腔中。 在用于铸造模具中的空腔的半熔融铸造材料的流动路径中设置用于对材料施加收缩效果的通孔。 将半熔融铸造材料流入通孔之前的材料变形压力P1用作参数。 例如，材料变形压力P1等于或低于6.7MPa，则确定材料令人满意地填充在空腔中。
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公开(公告)号：US06237522B1
公开(公告)日：2001-05-29
申请号：US09527133
申请日：2000-03-16
申请人： Kanji Kiyohara , Mitsuhiro Yazaki , Takehiro Nakashima , Haruyoshi Maruyama , Hisashi Fujii , Takeshi Sugawara
发明人： Kanji Kiyohara , Mitsuhiro Yazaki , Takehiro Nakashima , Haruyoshi Maruyama , Hisashi Fujii , Takeshi Sugawara
IPC分类号： B63B132
CPC分类号： B63B1/042
摘要： A bottom structure of a personal watercraft enhances the running performance of a personal watercraft. A concavo-convex face (21) having very small concave or convex portions for drawing air from an outside of a watercraft is formed on a water contact face (S) in a bottom surface (20) of the personal watercraft during planing. The air is drawn by the concavo-convex face (21), thereby separating a water flow from the bottom surface (20). Consequently, frictional resistance to the water in the bottom surface (20) can be reduced.
摘要翻译： 个人船只的底部结构增强了个人船只的运行性能。 在刨削期间，在个人船舶的底面（20）中的水接触面（S）上形成有用于从船舶外部抽出空气的非常小的凹凸部的凹凸面（21）。 空气由凹凸面（21）拉出，从而将水流从底面（20）分离。 因此，可以减小对底面（20）中的水的摩擦阻力。
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公开(公告)号：US4424953A
公开(公告)日：1984-01-10
申请号：US473717
申请日：1983-03-08
IPC分类号： B22F7/06 , C22C33/02 , C22C38/00 , C22C38/32 , F01L3/02 , F01L3/22 , F02B1/04 , F16K1/42 , F16K17/04 , F16K17/42
CPC分类号： F01L3/02 , B22F7/06 , C22C33/0242 , F01L3/22 , F02B1/04 , Y10T29/49409
摘要： The present invention relates to a dual-layer sintered valve seat ring having high stiffness and strength. The features of such ring are: fusion infiltration of Cu into the pores of a ferrous sintered body; hard alloy particles dispersed in the matrix of the valve seat body; the composition of the base and the ferrous sintered body; high density; and, diffusion of an alloying element of the hard particles around them and into the matrix.
摘要翻译： 本发明涉及一种具有高硬度和强度的双层烧结阀座圈。 这种环的特征是：Cu向铁质烧结体的孔中的熔融渗透; 硬质合金颗粒分散在阀座体的基体中; 基体和铁质烧结体的组成; 高密度; 以及硬颗粒的合金元素在其周围的扩散进入基体。
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10.发明授权Process for producing Fe-based member having high young's modulus, and Fe-based member having high young's modulus and high toughness 失效具有高杨氏模量的Fe基部件的制造方法和具有高的模量和高韧性的Fe基部件公开(公告)号：US06537397B1
公开(公告)日：2003-03-25
申请号：US09376051
申请日：1999-08-17
申请人： Takeshi Sugawara
发明人： Takeshi Sugawara
IPC分类号： C21D602
摘要： In producing an Fe-based member, an Fe-based material comprising 0.6% by weight≦carbon (C)≦1.0% by weight silicon (Si)
摘要翻译： 在制造铁基构件时，含有0.6重量％<=碳（C）<= 1.0重量％的铁基材料（Si）<2.2重量％0.9重量％<=锰（Mn） <= 1.7重量％0.5重量％<=镍（Ni）<= 1.5重量％，余量为包含不可避免的杂质的铁（Fe）在第一步骤进行加热温度的热处理 T1设置在TS
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