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彈性合金板帶 | 彈(dan)(dan)(dan)性(xing)(xing)(xing)(xing)合(he)金是精 密合(he)金的一類,用于制作精 密儀器儀表中(zhong)彈(dan)(dan)(dan)性(xing)(xing)(xing)(xing)敏感元(yuan)件、儲能(neng)元(yuan)件和(he)頻(pin)率(lv)元(yuan)件等彈(dan)(dan)(dan)性(xing)(xing)(xing)(xing)元(yuan)件。除了具(ju)有良好的彈(dan)(dan)(dan)性(xing)(xing)(xing)(xing)性(xing)(xing)(xing)(xing)能(neng)之 外,還具(ju)有無磁(ci)性(xing)(xing)(xing)(xing)、微(wei)塑性(xing)(xing)(xing)(xing)變(bian)形抗力高、硬度(du)高、 電阻率(lv)低(di)、彈(dan)(dan)(dan)性(xing)(xing)(xing)(xing)模量(liang)溫度(du)系數小(xiao)、內耗小(xiao)等性(xing)(xing)(xing)(xing)能(neng)。 彈(dan)(dan)(dan)性(xing)(xing)(xing)(xing)合(he)金包括(kuo)高彈(dan)(dan)(dan)性(xing)(xing)(xing)(xing)合(he)金和(he)恒彈(dan)(dan)(dan)性(xing)(xing)(xing)(xing)合(he)金。前(qian)者彈(dan)(dan)(dan)性(xing)(xing)(xing)(xing) 高,滯彈(dan)(dan)(dan)性(xing)(xing)(xing)(xing)效應低(di),耐熱性(xing)(xing)(xing)(xing)好;后者在(zai)一定溫 度(du)范(fan)圍(wei)內彈(dan)(dan)(dan)性(xing)(xing)(xing)(xing)模量(liang)幾乎不隨溫度(du)變(bian)化,又稱為“艾 林瓦 (Elinvar) 合(he)金”。彈(dan)(dan)(dan)性(xing)(xing)(xing)(xing)合(he)金一般在(zai)真空中(zhong) 冶煉,半成(cheng)品或成(cheng)品亦(yi)多在(zai)真空或保(bao)護性(xing)(xing)(xing)(xing)氣氛中(zhong)進 行熱處理。
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