SMC消聲器 BC燒結體功能一覽

消聲(sheng)(sheng)器是(shi)指對(dui)于(yu)同時具(ju)有(you)(you)噪聲(sheng)(sheng)傳播的氣(qi)流管(guan)道,可(ke)以用附有(you)(you)吸聲(sheng)(sheng)襯里的管(guan)道及彎頭或利用截面積突然改變及其他(ta)聲(sheng)(sheng)阻抗不連續的管(guan)道等(deng)降噪器件,使管(guan)道內噪聲(sheng)(sheng)得到衰減或反射(she)回去。前者(zhe)稱為阻性消聲(sheng)(sheng)器，后者(zhe)稱為抗性消聲(sheng)(sheng)器，也有(you)(you)阻抗復合(he)式的消聲(sheng)(sheng)

適(shi)合微型閥(fa)及先導閥(fa)的排(pai)氣(qi)消聲(sheng)

利(li)用多孔吸(xi)聲(sheng)(sheng)(sheng)(sheng)材(cai)料(liao)來降低噪聲(sheng)(sheng)(sheng)(sheng)的(de)(de)。把(ba)(ba)吸(xi)聲(sheng)(sheng)(sheng)(sheng)材(cai)料(liao)固定(ding)在(zai)氣(qi)流(liu)通道(dao)的(de)(de)內壁上或(huo)按(an)照一定(ding)方(fang)式(shi)在(zai)管道(dao)中排列，就構成(cheng)了阻性(xing)(xing)消(xiao)聲(sheng)(sheng)(sheng)(sheng)器(qi)(qi)(qi)。當(dang)聲(sheng)(sheng)(sheng)(sheng)波(bo)進入阻性(xing)(xing)消(xiao)聲(sheng)(sheng)(sheng)(sheng)器(qi)(qi)(qi)時，一部分聲(sheng)(sheng)(sheng)(sheng)能(neng)(neng)在(zai)多孔材(cai)料(liao)的(de)(de)孔隙中摩擦而(er)轉(zhuan)化成(cheng)熱能(neng)(neng)耗散掉，使通過消(xiao)聲(sheng)(sheng)(sheng)(sheng)器(qi)(qi)(qi)的(de)(de)聲(sheng)(sheng)(sheng)(sheng)波(bo)減弱。阻性(xing)(xing)消(xiao)聲(sheng)(sheng)(sheng)(sheng)器(qi)(qi)(qi)就好(hao)(hao)象電(dian)(dian)學上的(de)(de)純電(dian)(dian)阻電(dian)(dian)路，吸(xi)聲(sheng)(sheng)(sheng)(sheng)材(cai)料(liao)類似于電(dian)(dian)阻。因(yin)此，人們就把(ba)(ba)這種消(xiao)聲(sheng)(sheng)(sheng)(sheng)器(qi)(qi)(qi)稱為(wei)阻性(xing)(xing)消(xiao)聲(sheng)(sheng)(sheng)(sheng)器(qi)(qi)(qi)。阻性(xing)(xing)消(xiao)聲(sheng)(sheng)(sheng)(sheng)器(qi)(qi)(qi)對中高頻消(xiao)聲(sheng)(sheng)(sheng)(sheng)效果(guo)(guo)好(hao)(hao)、對低頻消(xiao)聲(sheng)(sheng)(sheng)(sheng)效果(guo)(guo)較差。

吸聲材料(liao)為(wei)BC（青銅(tong)）燒(shao)結金屬體

吸聲材料為(wei)PE（聚(ju)(ju)乙(yi)烯）或(huo)PP(聚(ju)(ju)丙(bing)烯）燒(shao)結體連接材料為(wei)樹脂類PP聚(ju)(ju)醛

標準型AN200~AN900>30流動阻力小、小型

吸聲材(cai)料為PE燒結體

小(xiao)(xiao)(xiao)(xiao)孔消聲(sheng)器的(de)(de)(de)結構(gou)是(shi)一(yi)根末端封閉的(de)(de)(de)直管(guan)，管(guan)壁上鉆有很多(duo)小(xiao)(xiao)(xiao)(xiao)孔。小(xiao)(xiao)(xiao)(xiao)孔消聲(sheng)器的(de)(de)(de)原(yuan)理是(shi)以噴(pen)氣(qi)噪聲(sheng)的(de)(de)(de)頻(pin)譜(pu)(pu)為依據的(de)(de)(de)，如果保(bao)持(chi)噴(pen)口的(de)(de)(de)總面(mian)積(ji)不變而(er)用很多(duo)小(xiao)(xiao)(xiao)(xiao)噴(pen)口來代替，當(dang)氣(qi)流經過小(xiao)(xiao)(xiao)(xiao)孔時(shi)、噴(pen)氣(qi)噪聲(sheng)的(de)(de)(de)頻(pin)譜(pu)(pu)就會移向高(gao)(gao)頻(pin)或(huo)超高(gao)(gao)頻(pin)，使頻(pin)譜(pu)(pu)中的(de)(de)(de)可聽(ting)聲(sheng)成分明顯(xian)降低(di)，從而(er)減少對(dui)人(ren)的(de)(de)(de)干(gan)擾和傷害。

連(lian)接體材料為ADC（鋁合金壓鑄(zhu)）或聚醛(quan)

連接(jie)體(ti)材料為(wei)磷(lin)青銅(tong)

吸收型：壓縮空氣通(tong)過(guo)多孔的吸聲(sheng)材料(liao)減少排(pai)氣噪聲(sheng)。吸聲(sheng)材料(liao)大多使用(yong)聚(ju)氯(lv)乙烯纖(xian)維(wei)、玻璃纖(xian)維(wei)、燒結(jie)銅珠等；

膨脹干(gan)涉型：直徑比(bi)排氣孔大，用于(yu)消除中、低(di)頻噪聲(sheng)。

SMC消聲器 BC燒結體功能一覽