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　　環保造紙機成(cheng)(cheng)形(xing)(xing)(xing)裝(zhuang)(zhuang)(zhuang)置(zhi)的作用，成(cheng)(cheng)形(xing)(xing)(xing)裝(zhuang)(zhuang)(zhuang)置(zhi)又稱為網部(bu)，是造(zao)(zao)紙(zhi)機上最(zui)重要的一部(bu)分，紙(zhi)料懸浮液在其上面形(xing)(xing)(xing)成(cheng)(cheng)紙(zhi)頁，成(cheng)(cheng)紙(zhi)質量和紙(zhi)機的正(zheng)常生產都(dou)與成(cheng)(cheng)形(xing)(xing)(xing)裝(zhuang)(zhuang)(zhuang)置(zhi)的操作有(you)密切(qie)關系。濕紙(zhi)幅(fu)一旦在成(cheng)(cheng)形(xing)(xing)(xing)裝(zhuang)(zhuang)(zhuang)置(zhi)成(cheng)(cheng)形(xing)(xing)(xing)后，紙(zhi)張(zhang)中(zhong)的纖維交(jiao)織狀態(tai)便(bian)基(ji)本(ben)定(ding)形(xing)(xing)(xing)，紙(zhi)張(zhang)的基(ji)本(ben)物理性質也隨(sui)之確定(ding)下來，隨(sui)后造(zao)(zao)紙(zhi)機的壓榨(zha)、干(gan)燥和壓光等過程只能有(you)限地改善已成(cheng)(cheng)形(xing)(xing)(xing)紙(zhi)幅(fu)的性質。成(cheng)(cheng)形(xing)(xing)(xing)裝(zhuang)(zhuang)(zhuang)置(zhi)通常也是造(zao)(zao)紙(zhi)機上最(zui)復雜的一部(bu)分，在運(yun)轉(zhuan)中(zhong)，成(cheng)(cheng)形(xing)(xing)(xing)裝(zhuang)(zhuang)(zhuang)置(zhi)的動(dong)力(li)消耗和維修費用在整個造(zao)(zao)紙(zhi)機中(zhong)占(zhan)有(you)相當大(da)的比重。

　　紙(zhi)幅(fu)的(de)成(cheng)(cheng)形是一(yi)個復雜的(de)過程(cheng)，通(tong)常可簡單地看成(cheng)(cheng)是纖(xian)維(wei)逐漸沉積到成(cheng)(cheng)形網網面上(shang)(shang)，相互錯綜交織成(cheng)(cheng)一(yi)個薄層(ceng)的(de)結果。要獲得組(zu)織均勻的(de)紙(zhi)幅(fu)，除了需(xu)要性能良好的(de)流送設備(bei)外，還需(xu)要使(shi)紙(zhi)料在成(cheng)(cheng)形網面上(shang)(shang)進(jin)行合(he)理的(de)脫水(shui)過程(cheng)。一(yi)般(ban)可通(tong)過控(kong)制(zhi)網速和上(shang)(shang)網漿速的(de)差值、網案(an)的(de)搖(yao)振及選(xuan)用適(shi)當的(de)脫水(shui)元件等方法，使(shi)纖(xian)維(wei)懸(xuan)浮液(ye)在紙(zhi)幅(fu)成(cheng)(cheng)形過程(cheng)中(zhong)，既相對平靜又具有(you)一(yi)定的(de)湍(tuan)動，從而使(shi)沉積的(de)纖(xian)維(wei)分散均勻，無絮團，同(tong)時又避免(mian)不(bu)適(shi)當的(de)過急脫水(shui)，使(shi)紙(zhi)料中(zhong)的(de)膠料、填料和細小(xiao)纖(xian)維(wei)流失過多，造成(cheng)(cheng)紙(zhi)幅(fu)的(de)兩面性質的(de)差別。