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    • 4. 发明授权
    • Fire-resistant steel material superior in HAZ toughness of welded joint and method of production of same
    • 焊接接头HAZ韧性优良的耐火钢材料及其制造方法
    • US08323561B2
    • 2012-12-04
    • US12224253
    • 2007-09-20
    • Yasushi HasegawaSuguru YoshidaYoshiyuki Watanabe
    • Yasushi HasegawaSuguru YoshidaYoshiyuki Watanabe
    • C22C38/22C21D8/00C22C38/00
    • C21D8/021C21D1/54C21D6/002C21D9/46C21D9/50C21D2211/005C22C38/001C22C38/02C22C38/04C22C38/24
    • The present invention provides a fire-resistant steel material superior in HAZ toughness of a welded joint which is high in high temperature yield strength at an envisioned fire temperature of 700 to 800° C. and is free of embrittlement of the welded joint even if exposed at this envisioned fire temperature and a method of production of the same, that is, a fire-resistant steel material of a composition containing, by mass %, C: 0.005% to less than 0.03%, Si: 0.01 to 0.50%, Mn: 0.05 to 0.40%, Cr: 1.50 to 5.00%, V: 0.05 to 0.50%, and N: 0.001 to 0.005% and restricted in contents of Ni, Cu, Mo, B, P, S, and O obtained by heating a steel slab to 1150 to 1300° C., then hot working or hot rolling the slab to an end temperature of 880 degrees or more, acceleratedly cooling the worked or rolled steel material under conditions of a cooling rate at a position of the slowest cooling rate of at least 2° C./sec or more, stopping this accelerated cooling at a temperature region where the surface temperature of the steel material becomes 350 to 600° C., and then allowing the material to cool.
    • 本发明提供一种在700-800℃的预期的火焰温度下,在高温屈服强度高的焊接接头的HAZ韧性优异的耐火钢材料,即使暴露于焊接接头也不会发生脆化 在这种预想的耐火温度及其制造方法中,即,以质量%计含有C:0.005〜小于0.03%的Si:0.01〜0.50%的组成的耐火钢材,Mn:0.01〜 :0.05〜0.40%,Cr:1.50〜5.00%,V:0.05〜0.50%,N:0.001〜0.005%,通过加热得到的Ni,Cu,Mo,B,P,S, 钢板坯坯为1150〜1300℃,然后热轧或热轧板坯至880度以上的终止温度,在冷却速度最慢的位置的条件下,对加工后的钢材进行加速冷却 至少2℃/ sec以上,在表面的温度区域停止加速冷却 钢材的温度变为350〜600℃,然后使材料冷却。
    • 7. 发明授权
    • Use-side unit and air conditioner
    • 使用侧机组和空调机
    • US09562700B2
    • 2017-02-07
    • US13142873
    • 2009-02-20
    • Yoshiyuki Watanabe
    • Yoshiyuki Watanabe
    • F24F3/153F24F11/08F24F11/00F24F3/14
    • F24F3/153F24F11/0008F24F11/30F24F2003/1446F24F2110/10F24F2110/20
    • A use-side unit and an air conditioner that can feed out air at a target temperature into a target space are provided. A use-side evaporator that recovers moisture obtained by cooling and condensing the air to be fed out into the space to be air-conditioned or the like and dehumidifies it so as to obtain target relative humidity, a use-side condenser that heats the air having passed through the use-side evaporator by heat exchange, adjusts it to a target dry-bulb temperature and feeds it out into the space to be air-conditioned or the like, and a use-side controller that calculates a correction value if a difference between a dry-bulb temperature according to the detection of a temperature detector that detects a dry-bulb temperature of the air to be fed out into the target space and the target dry-bulb temperature is larger than a predetermined value and performs processing to correct a target intermediate dry-bulb temperature.
    • 提供了能够将目标温度下的空气供给到目标空间的使用侧单元和空调机。 一种利用侧蒸发器,其通过冷却冷凝空气而得到的水分,并将其送出到要进行空气调节的空间等中,并对其进行除湿以获得目标相对湿度,加热空气的使用侧冷凝器 通过热交换而通过使用侧蒸发器,将其调节到目标干球温度并将其输送到空调等空间中;以及使用侧控制器,其计算校正值,如果 根据检测到要送出到目标空间的空气的干球温度和目标干球温度的温度检测器的检测的干球温度之间的差大于预定值,并且执行处理 校正目标中间干球温度。