公开(公告)号：US3674472A

公开(公告)日：1972-07-04

申请号：US3674472D

申请日：1969-06-06

申请人： TOYODA CHUO KENKYUSHO KK

发明人： KIMURA TAKASHI ,  MAJIMA AZUSA ,  HAMAMOTO HIROSHI ,  AWANO YOJI

IPC分类号： C22C33/02 ,  B22F3/16

CPC分类号： C22C33/02

摘要： THIS INVENTION RELATES TO SINTERED METAL ALLOYS SUCH AS IRON BASE ALLOYS CONTAINING COPPER HAVING SIGNIFICANTLY IMPROVED TOUGHNESS CHARACTERISTICS, AND A METHOD FOR MAKING SUCH ALLOYS. A NOVEL STRUCTURE IS PRODUCED CHARACTERIZED BY A NON-HOMOGENEOUS CONCENTRATION OF COPPER SOLID SOLUTION WITHIN THE INDIVIDUAL BASE METAL PARTICLES COMPRISING SAID SINTERED STRUCTURE. SUCH A STRUCTURE IS OBTAINED BY CONTROLLING THE TIME-TEMPERATURE PARAMETERS DURING THE SINTERING AND DIFFUSING STEPS THEREOF. FOR EXAMPLE, SINTERING IS PERFORMED AT A TEMPERATURE LESS THAN THE MELTING POINT OF COPPER; THE DIFFUSION AT A TEMPERATURE RANGING FROM THE MELTING POINT OF COPPER TO LESS THAN THE MELTING POINT OF THE IRON BASE MATERIAL.

公开(公告)号：US3706550A

公开(公告)日：1972-12-19

申请号：US3706550D

申请日：1970-09-15

申请人： TOYODA CHUO KENKYUSHO KK

发明人： UMEHARA HANJI ,  KIMURA TAKASHI ,  HAMAMOTO HIROSHI

IPC分类号： B22F3/10 ,  B22C9/06 ,  B22F5/00 ,  B22F5/10 ,  B22F3/26

CPC分类号： B22C9/061 ,  B22F5/007 ,  B22F5/10 ,  B22F2005/103 ,  Y10T428/12451

摘要： A method for producing a metal die or mold including the steps of placing a layer of sintering powder, such as iron, copper, tungsten carbide or titanium carbide, in a frame or box, placing in contact with the sintering powder a pattern made of an infiltrant metal, such as copper, lead, cobalt, nickel, iron or alloys thereof, having a lower melting point than that of the sintering powder, the pattern corresponding in configuration to that of the cavity surface of the desired die, heating the powder together with the pattern in the frame to sintering temperature, whereby to sinter the powder and infiltrate the infiltrant metal forming the pattern into the powder, and cooling so as to obtain a hardened sintered mold having a surface whose configuration complements that of the pattern surface.

摘要翻译： 一种金属模具或模具的制造方法，包括以下步骤：将一层烧结粉末如铁，铜，碳化钨或碳化钛放置在框架或箱体中，与烧结粉末接触形成由 浸渍金属，例如铜，铅，钴，镍，铁或其合金，其熔点低于烧结粉末的熔点，该图案与所需模具的腔表面的形状相对应，将粉末加热在一起 将框架中的图案与烧结温度进行烧结，从而烧结粉末并将形成图案的浸渍金属浸入粉末中，并冷却，得到具有与图案表面相配的表面的硬化烧结模具。

公开(公告)号：US3859085A

公开(公告)日：1975-01-07

申请号：US26932872

申请日：1972-07-06

申请人： TOYODA CHUO KENKYUSHO KK

发明人： KIMURA TAKASHI ,  MAJIMA AZUSA ,  HAMAMOTO HIROSHI

IPC分类号： B22F3/14 ,  C22C33/02 ,  B22F1/00

CPC分类号： C22C33/0292 ,  B22F3/14 ,  C22C33/02

摘要： Iron-base sintered alloys, characterized by high density and good hardness, have been prepared by sintering a particulate material consisting of iron, carbon and metallic carbide at a temperature within the solid-liquid phase range corresponding to the composition ratio of said iron and carbon.

摘要翻译： 通过在对应于所述铁和碳的组成比的固 - 液相范围内的温度下烧结由铁，碳和金属碳化物组成的颗粒材料来制备以高密度和高硬度为特征的铁基烧结合金 。