公开(公告)号：US06419770B1

公开(公告)日：2002-07-16

申请号：US09541058

申请日：2000-03-31

申请人： Shu Miyashita ,  Masami Tanaka ,  Saburo Sugiura ,  Yoshitaka Nishizawa

发明人： Shu Miyashita ,  Masami Tanaka ,  Saburo Sugiura ,  Yoshitaka Nishizawa

IPC分类号： C21D702

CPC分类号： C21D8/005 ,  C21D2241/02

摘要： The high carbon stainless steel containing more than 0.5 mass % carbon and more than 8 mass % chromium, or the tool steel containing more than 0.5 mass % carbon and more than 0.5 mass % at least one of carbide producing metal elements including chromium, molybdenum, tungsten, vanadium, niobium and titanium is processed by cold-warm working such as forging at a temperature of less than 800 ° C. to make more than 10% plastic deformation to an extent that cracks and voids are formed in the crystallized first stage carbide and, further, processed by a Hot Isostatic Pressing treatment so that the cracks and voids may be cured.

摘要翻译： 含有超过0.5质量％的碳和大于8质量％的铬的高碳不锈钢或者含有大于0.5质量％的碳和大于0.5质量％的工具钢，包括铬，钼， 钨，钒，铌和钛通过冷温加工进行加工，例如在低于800℃的温度下锻造以使10％以上的塑性变形达到在结晶的第一级碳化物中形成裂纹和空隙的程度 并进一步通过热等静压处理进行处理，使得裂纹和空隙可以固化。

公开(公告)号：US20060137423A1

公开(公告)日：2006-06-29

申请号：US11305040

申请日：2005-12-19

申请人： Shu Miyashita ,  Masami Tanaka ,  Toshihiro Imai ,  Hirofumi Muranaka

发明人： Shu Miyashita ,  Masami Tanaka ,  Toshihiro Imai ,  Hirofumi Muranaka

IPC分类号： B21K1/14

CPC分类号： F02M61/168 ,  B21K3/00

摘要： A high-pressure piping part includes a body structure forged in a closed space. The body structure is formed to include a main body portion formed by forward extrusion and side arm portions formed by side extrusion. The main body portion has therein a fiber flow formed along a passage, and the side arm portion has therein a fiber flow formed along the passage. Therefore, the direction in which stress is applied to the passage of the body structure by an internal pressure is approximately perpendicular to the directions of the fiber flows, thereby improving the degree of allowance of the resistance to pressure of the body structure for an injector.

摘要翻译： 高压管道部分包括锻造在封闭空间中的主体结构。 主体结构形成为包括通过向前挤压形成的主体部分和通过侧向挤压形成的侧臂部分。 主体部分具有沿着通道形成的纤维流，并且侧臂部分中具有沿着通道形成的纤维流。 因此，通过内部压力对身体结构的通过施加应力的方向大致垂直于纤维流动的方向，从而提高了喷射器的主体结构的耐压力的容许度。

公开(公告)号：US07219524B2

公开(公告)日：2007-05-22

申请号：US11305040

申请日：2005-12-19

申请人： Shu Miyashita ,  Masami Tanaka ,  Toshihiro Imai ,  Hirofumi Muranaka

发明人： Shu Miyashita ,  Masami Tanaka ,  Toshihiro Imai ,  Hirofumi Muranaka

IPC分类号： B21D28/00

CPC分类号： F02M61/168 ,  B21K3/00

摘要： A high-pressure piping part includes a body structure forged in a closed space. The body structure is formed to include a main body portion formed by forward extrusion and side arm portions formed by side extrusion. The main body portion has therein a fiber flow formed along a passage, and the side arm portion has therein a fiber flow formed along the passage. Therefore, the direction in which stress is applied to the passage of the body structure by an internal pressure is approximately perpendicular to the directions of the fiber flows, thereby improving the degree of allowance of the resistance to pressure of the body structure for an injector.

摘要翻译： 高压管道部分包括锻造在封闭空间中的主体结构。 主体结构形成为包括通过向前挤压形成的主体部分和通过侧向挤压形成的侧臂部分。 主体部分具有沿着通道形成的纤维流，并且侧臂部分中具有沿着通道形成的纤维流。 因此，通过内部压力对身体结构的通过施加应力的方向大致垂直于纤维流动的方向，从而提高了喷射器的主体结构的耐压力的容许度。