Abstract:
본 발명은 냉방과 난방을 모두 실시할 수 있고 냉풍 또는 온풍을 발생시켜 바닥뿐만 아니라 공간의 냉방 및 난방이 가능한 냉난방 겸용 매트 및 냉난방 겸용 매트의 냉난방 장치에 관한 것이다. 본 발명의 냉난방 겸용 매트의 냉난방 장치는, 냉난방수를 저장하고, 상기 냉난방수가 배출되는 배출구와 상기 냉난방수가 유입되는 유입구가 있는 냉온수통; 열교환수를 저장하는 열교환통; 상기 배출구에 연결되어 냉난방수를 순환시키는 순환모터; 상기 순환모터로부터 공급되는 냉난방수가 지나가는 라디에이터; 상기 라디에이터를 향해 송풍하여 냉풍 또는 온풍을 발생시키는 송풍팬; 상기 라디에이터를 지나온 냉난방수가 지나가는 열교환부; 및 상기 열교환통과 열교환부 사이에 위치하여 냉난방수를 가열하거나 냉각시키는 펠티어소자를 포함하여 이루어지고, 상기 열교환부를 지나온 냉난방수는 매트로 유입되고, 상기 매트로부터 배출되는 냉난방수는 상기 유입구를 통해 상기 냉온수통으로 유입된다.
Abstract:
A cast aluminum wheel includes a rim element having an annular configuration defining an axis and a central element extending radially outwardly between the axis and the rim element. The rim element includes a wall extending circumferentially around the axis between a proximal bead and a distal bead. The central element includes a plurality of spokes extending radially outwardly toward the proximal bead and meets proximate the axis with adjacent of the plurality of spokes defining a cooperative feature therebetween for providing stiffness to the wheel. The spokes progressively increase in volume in a direction toward the axis from the rim element thereby providing increased mass of the spokes proximate the axis relative to the rim element.
Abstract:
The present invention pertains to a production method for a fire-resistant magnesium alloy having the mechanical characteristics of a long-period stacked magnesium alloy and having an ignition temperature of at least 800°C. The fire-resistant magnesium alloy production method dissolves a fire-resistant magnesium alloy containing a atom% of Zn, a total of b atom% of at least one type of element selected from a group comprising Gd, Tb, Tm, and Lu, and x atom% of Ca, with the remainder being Mg. a, b, and x fulfil formulas 1-4. Formula 1: 0.2 ≤ a ≤5.0. Formula 2: 0.5 ≤ b ≤ 5.0. Formula 3: 0.5a - 0.5 ≤ b. Formula 4: 0
Abstract:
본 발명에 따른 마그네슘 합금용 미세화제는, 알루미늄(Al)과 망간(Mn)을 포함하고, 그 미세조직 내에 알루미늄(Al)과 망간(Mn)의 화합물을 포함하며, 상기 알루미늄(Al)과 망간(Mn)의 화합물 중에서, Al/Mn의 조성(원자비) 비율이 4~4.5인 화합물의 면적이, Al/Mn의 조성(원자비) 비율이 5.5~6.5인 화합물의 면적에 비해 큰 조직으로 이루어지며, 이 미세화제를 마그네슘 용탕에 첨가할 경우, 결정립을 50~100㎛로 미세화시킬 수 있다.
Abstract:
The invention relates to a method for manufacturing a foundry body including the preparation of a granular mixture including a polycondensed resin having modified formaldehyde, optionally incorporating an aromatic or polyaromatic during the synthesis thereof, a hardening agent, a formaldehyde sensor compound, water and optionally at least one resin selected from the group comprising tannins, natural polyphenols, and lignins, placing said granular mixture in contact with the surface of a forming tool, and insufflating a flow of gas at 50 °C to 380 °C into the granular mixture for 1 to 300 seconds, in order to ensure at least partial hardening of said mixture. The invention also relates to a method for manufacturing a moulded foundry piece made of metal or a metal alloy, which includes pouring metal into at least one body (mould and/or core) thus produced; and to a foundry piece thus manufactured.
Abstract:
A casting mold includes a carbon film with which at least a surface of the casting mold which forms a cavity is covered, and mold oil with which a surface of the carbon film is coated. In the casting mold, aluminum powder is added to the mold oil.