Aisin Takaoka Co., Ltd.

Toyota Jidosha Kabushiki Kaisha

Sintokogio, Ltd.

Fujiwa Denki Co., Ltd.

Zhong-zhi Zhang

Yoshikazu Genma

Go Kuramoto

Masayuki Kato

Hideto Terada

Kiyohito Kondo

Tomohiro Yamaguchi

Tomiyuki Murayama

Hitoshi Sakuma

Takumi Hijii

Takahiro Sato

Yoshihiro Hibino

Hitoshi Yoshimi

Toru Hanai

Hidemi Hattori

Huaisheng Dai

Daisuke Yamanaka

Takeyuki Sakuma

Yoshimasa Ureshino

Huai-sheng Dai

Gou Nakamura

Takeshi Seo

Shinichi Cyomatsuken

A spheroidal graphite cast iron having an excellent impact strength at low temperature and a method for producing the same are provided. The present disclosure relates to the spheroidal graphite cast iron comprising: C: 3.5 mass % to 4.2 mass %; Si: 2.0 mass % to 2.8 mass %; Mn: 0.2 mass % to 0.4 mass %; Cu: 0.1 mass % to 0.7 mass %; Mg: 0.02 mass % to 0.06 mass %; Cr: 0.01 mass % to 0.15 mass %; and the balance: Fe and inevitable impurities, wherein Mn+Cr+Cu is 0.431 mass % to 1.090 mass %, a graphite nodule count is 230/mmor less, and a pearlite fraction is 30% to 85%.

Spheroidal graphite cast iron

In a differential apparatus component (ring gear-integrated with differential case), a differential case and a ring gear are formed integrally and seamlessly of cast steel. Cast Steel is preferably composed of 0.3 to 1.0% by mass of silicon (Si), 0.5 to 1.2% by mass of manganese (Mn), 0.1 to 0.5% by mass of vanadium (V), 0.01 to 0.05% by mass of tin (Sn), 0.1 to 1.5% by mass of chromium (Cr), 0.2 to 1.0% by mass of copper (Cu), and the rest composed of iron (Fe) and unavoidable impurities.

Differential apparatus component, differential apparatus therewith and manufacturing method thereof

A manufacturing method of a thermoelectric module comprises forming a first wax model in which the first thermoelectric elements are arranged in a predetermined pattern, forming a first mold from the first wax model, casting a group of the first thermoelectric elements by pouring molten metal of a first thermoelectric material into the first mold to solidify the molten metal, forming a second wax model that represents arrangement of second thermoelectric elements to form the thermoelectric module by being connected with the first thermoelectric elements, forming a second mold from the second wax model, casting the group of the second thermoelectric elements by pouring molten metal of a second thermoelectric material into the second mold to solidify the molten metal, and connecting the group of the first thermoelectric elements with the group of the second thermoelectric elements electrically in series.

Method of manufacturing thermoelectric module, and thermoelectric module

An iron (Fe)-based austenitic heat-resistant cast steel includes, based on a total of 100 mass % (indicated below simply as '%'): 0.4 to 0.8% of carbon (C), 3.0% or less of silicon (Si), 0.5 to 2.0% of manganese (Mn), 0.05% or less of phosphorus (P), 0.03 to 0.2% of sulfur (S), 18 to 23% of chromium (Cr), 3.0 to 8.0% of nickel (Ni) and 0.05 to 0.4% of nitrogen (N). A ratio of chromium (Cr) to carbon (C) is in a range of 22.5&#x2266;Cr/C&#x2266;57.5. The cast steel includes one or two or more of vanadium (V), molybdenum (Mo), tungsten (W) and niobium (Nb) in a total amount of less than 0.2%.

Austenitic heat-resistant cast steel

A cast-steel pouring apparatus including a furnace body having a furnace main body that includes a fire-retardant lining material demarcating a retainer chamber for retaining molten steel therein, and a steel-outing trough unit that protrudes from the furnace main-body toward an outside and with a trough length equal to &#x2154; or less of an inside diameter of a top-face opening in the retainer chamber; a first pivot shaft having a first axial line oriented along a lateral direction such that the furnace body can pivot on the first pivot shaft in a longitudinal direction; a first pivot driving source for causing the furnace body to pivot about the first axial line of the first pivot shaft which serves as the pivotal center in the longitudinal direction, thereby causing the molten steel to discharge from the steel-outing trough unit of the furnace body, which has pivoted with respect to a sprue of casting mold.

Cast-steel pouring apparatus

The ferrite system heat-resistant cast steel and the exhaust system component are provided, which are inexpensive and are able to improve the reliability by largely improving the toughness under normal temperature and thermal fatigue performance. The ferrite system heat-resistant cast steel includes composition structure comprised, percent by mass, of 0.1% to 0.4% carbon, 0.5% to 2.0% silicon, 0.2% to 1.2% manganese, 0.3% or less phosphorus, 0.01% to 0.4% sulfur, 14.0% to 21.0% chrome, 0.05% to 0.6% niobium, 0.01% to 0.8% aluminum, 0.15% to 2.3% nickel, residual iron and inevitable impurities.

Ferrite system heat-resistant cast steel and exhaust system component

Ferritic spheroidal graphite cast iron includes: 3.1 to 3.5 percent by mass of carbon; 4.1 to 4.5 percent by mass of silicon; 0.8 percent by mass or below of manganese; 0.1 to 0.6 percent by mass of molybdenum; 0.1 to 1.0 percent by mass of chromium; 0.03 to 0.1 percent by mass of phosphorus; 0.03 percent by mass or below of sulfur; 0.02 to 0.15 percent by mass of magnesium; and iron.

Ferritic spheroidal graphite cast iron

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Kariya, Japan

Zhong-zhi Zhang