硬質合金加工閥芯流程與技術要求
閥門是在流體體系中，用來操控流體的方向、壓力、流量的設備是使配管和設備內的介質（液體、氣體、粉末）流動或停止并能操控其流量的設備，閥門的應用范圍很廣所以對于閥門的硬質合金加工顯得尤為重要。
用于流體操控體系的閥門，從簡略的截止閥到極為雜亂的自控體系中所用的各種閥門，其品種和規范相當繁多，所以說法也不完全一致，有的按其用處和效果分類（截斷閥類，調節閥類，止回閥類，分流閥類，安全閥類），有的按其閥體的資料分類（非金屬資料閥門，金屬資料閥門，金屬閥體襯里閥門），不過目前世界、國內常用的分類辦法是既按原理、效果又按結構劃分的辦法，一般分閘閥、截止閥、節流閥、外表閥、柱塞閥、隔膜閥、旋塞閥、球閥、蝶閥、止回閥、減壓閥安全閥、疏水閥、調節閥、底閥、過濾器、排污閥等，硬質合金加工。
無論(lun)是(shi)哪種(zhong)閥門(men)包括以上三種(zhong)閥門(men)，如(ru)果閥體等零部件(jian)(jian)是(shi)外(wai)購鑄(zhu)(zhu)件(jian)(jian)或(huo)鍛件(jian)(jian)，進(jin)廠之(zhi)(zhi)前都要(yao)進(jin)行(xing)(xing)嚴(yan)厲的(de)查驗，通過查驗合格的(de)鑄(zhu)(zhu)件(jian)(jian)在進(jin)入車(che)間之(zhi)(zhi)前會再次進(jin)行(xing)(xing)補焊，意圖是(shi)對(dui)鑄(zhu)(zhu)件(jian)(jian)上的(de)某一些(xie)缺點(dian)進(jin)行(xing)(xing)修補。修補后的(de)鑄(zhu)(zhu)件(jian)(jian)進(jin)入車(che)間，閥體，閥蓋或(huo)密(mi)(mi)封(feng)(feng)(feng)(feng)(feng)件(jian)(jian)等鑄(zhu)(zhu)件(jian)(jian)分別在特定的(de)機(ji)床上進(jin)行(xing)(xing)加(jia)(jia)(jia)工(gong)(gong)(gong)。其(qi)間密(mi)(mi)封(feng)(feng)(feng)(feng)(feng)件(jian)(jian)鑄(zhu)(zhu)件(jian)(jian)根據密(mi)(mi)封(feng)(feng)(feng)(feng)(feng)方式分為硬密(mi)(mi)封(feng)(feng)(feng)(feng)(feng)和軟密(mi)(mi)封(feng)(feng)(feng)(feng)(feng)的(de)加(jia)(jia)(jia)工(gong)(gong)(gong)，硬密(mi)(mi)封(feng)(feng)(feng)(feng)(feng)是(shi)指密(mi)(mi)封(feng)(feng)(feng)(feng)(feng)副的(de)兩邊(bian)均是(shi)金(jin)屬資(zi)料(liao)或(huo)較(jiao)(jiao)(jiao)硬的(de)其(qi)它(ta)資(zi)料(liao)。這(zhe)種(zhong)密(mi)(mi)封(feng)(feng)(feng)(feng)(feng)的(de)密(mi)(mi)封(feng)(feng)(feng)(feng)(feng)功(gong)能較(jiao)(jiao)(jiao)差,但耐高溫,抗(kang)磨損(sun),機(ji)械(xie)功(gong)能好；軟密(mi)(mi)封(feng)(feng)(feng)(feng)(feng)是(shi)指密(mi)(mi)封(feng)(feng)(feng)(feng)(feng)副的(de)兩邊(bian)一側(ce)是(shi)金(jin)屬資(zi)料(liao),另一側(ce)是(shi)有彈性(xing)的(de)非金(jin)屬資(zi)料(liao)。這(zhe)種(zhong)密(mi)(mi)封(feng)(feng)(feng)(feng)(feng)的(de)密(mi)(mi)封(feng)(feng)(feng)(feng)(feng)功(gong)能較(jiao)(jiao)(jiao)好,但不耐高溫,易(yi)磨損(sun),機(ji)械(xie)性(xing)較(jiao)(jiao)(jiao)差。硬密(mi)(mi)封(feng)(feng)(feng)(feng)(feng)方式的(de)密(mi)(mi)封(feng)(feng)(feng)(feng)(feng)件(jian)(jian)鑄(zhu)(zhu)件(jian)(jian)，和其(qi)他(ta)鑄(zhu)(zhu)件(jian)(jian)一樣，車(che)削加(jia)(jia)(jia)工(gong)(gong)(gong)之(zhi)(zhi)后直接進(jin)行(xing)(xing)鉆銑刨插加(jia)(jia)(jia)工(gong)(gong)(gong)，去(qu)毛(mao)(mao)刺(ci)(ci)打磨，然(ran)后就可以清(qing)洗吹(chui)(chui)干，進(jin)行(xing)(xing)防銹(xiu)(xiu)處(chu)理后入庫(ku)等候(hou)拼裝(zhuang)。軟密(mi)(mi)封(feng)(feng)(feng)(feng)(feng)方式的(de)密(mi)(mi)封(feng)(feng)(feng)(feng)(feng)件(jian)(jian)鑄(zhu)(zhu)件(jian)(jian)在車(che)削加(jia)(jia)(jia)工(gong)(gong)(gong)之(zhi)(zhi)后，還必(bi)須通過堆(dui)焊、精加(jia)(jia)(jia)工(gong)(gong)(gong)、鉆銑刨插加(jia)(jia)(jia)工(gong)(gong)(gong)、去(qu)毛(mao)(mao)刺(ci)(ci)打磨和密(mi)(mi)封(feng)(feng)(feng)(feng)(feng)面研磨之(zhi)(zhi)后，才(cai)干清(qing)洗吹(chui)(chui)干防銹(xiu)(xiu)然(ran)后入庫(ku)等候(hou)拼裝(zhuang)。軟密(mi)(mi)封(feng)(feng)(feng)(feng)(feng)方式的(de)密(mi)(mi)封(feng)(feng)(feng)(feng)(feng)件(jian)(jian)必(bi)須通過堆(dui)焊的(de)原因是(shi)為了使密(mi)(mi)封(feng)(feng)(feng)(feng)(feng)件(jian)(jian)外(wai)表取得耐磨，耐熱(re)或(huo)耐蝕的(de)特殊功(gong)能，添加(jia)(jia)(jia)外(wai)表硬度和耐磨性(xing)，提高壽命運(yun)用。
keyword：硬質合金,閥(fa)芯
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