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  • Lyocell纖維噴絲板制造工藝研究
    2020-09-10 10:36:41   來源:   評論:0 點擊:

    為了探尋高精度、高效率的制造工藝以提升Lyocell纖維噴絲板產品整體質量水平,介紹Lyocell纖維紡絲特點,分析對比熔融法紡絲噴絲板與濕法紡絲、干法紡絲、干濕法紡絲噴絲頭在結構形式、基
    郭慶平
    (山西經緯化纖機械股份有限公司 技術中心,山西 晉中  030601)
     
    摘要:為了探尋高精度、高效率的制造工藝以提升Lyocell纖維噴絲板產品整體質量水平,介紹Lyocell纖維紡絲特點,分析對比熔融法紡絲噴絲板與濕法紡絲、干法紡絲、干濕法紡絲噴絲頭在結構形式、基體材質及制造工藝的區別,指明Lyocell纖維紡絲屬于溶液紡絲中的干濕法紡絲。以圓環形Lyocell纖維噴絲板的制造工藝為例,闡述其選材、制坯、沖孔、表面拋光及清潔技術,即圓環形Lyocell纖維噴絲板選用厚度為1.2 mm的1Cr17不銹鋼板材,沖孔時將坯料安裝在自動沖孔夾具中,沖孔程序設定為由外至內逐圈按坐標信息沖孔,清洗吹干后再進行第二道沖孔;全部沖制三道孔的噴絲板,在平面拋光機上進行砂光和拋光處理。指出:微孔單孔多次沖擠法沖孔可保證微孔的直孔長徑比,減少斷針數;采用數控沖孔可減少人工誤差,提高一致性和加工效率;噴絲板產品整體質量水平達到預期效果。
    關鍵詞:Lyocell纖維;噴絲板;數控沖孔;沖針;拋光;長徑比
    中圖分類號:TS152.8      文獻標志碼:B     文章編號:1001-9634(2020)04-0016-04
     
    收稿日期:2019-12-22
    作者簡介:郭慶平(1976—),女,山西晉中人,助理工程師,主要從事化纖紡織專件計量泵、噴絲頭等的設計與研究。
     
    Study on Manufacturing Process of Lyocell Fiber Spinneret
    GUO Qingping
    (Technology Center of Shanxi Jingwei Chemical Fiber Machinery Co.,Ltd.,Jinzhong 030601,China)
     
    Abstract:To explore high precision and high efficiency manufacturing process to improve the overall quality level of Lyocell fiber spinneret product,the spinning characteristics of Lyocell fiber are introduced,and the differences are analyzed and compared in structure,matrix material and manufacturing process between melt spinning spinnerets and wet spinning spinnerets,dry spinning spinnerets and dry-wet spinning spinnerets.It is indicated that Lyocell fiber spinning belongs to dry-wet spinning of solution spinning.Taking the manufacturing process of circular Lyocell fiber spinneret as an example,the material selection,blank making,punching,surface polishing and cleaning technologies are described,that is,the circular Lyocell fiber spinneret is made of 1Cr17 stainless steel plate with thickness of 1.2 mm.When punching,the blank is installed in the automatic punching fixture,and the punching program is set as punching from the outside to the inside round and round according to the coordinate information,and the second punching is carried out after cleaning and blow-drying.The spinneret all punched three hole is sanded and polished on a flat polisher.It is pointed out that the single-hole multiple punching method can ensure the length-diameter ratio of micropore and reduce the number of broken needles.CNC punching can reduce the manual error,and improve the consistency and machining efficiency.The overall quality level of spinneret plate reaches the expected effect.
    Key Words:Lyocell fiber;spinneret;CNC punching;punch needle;polishing;length-diameter ratio
     
    參考文獻:
    [1] 邵惠麗.Lyocell纖維國產化技術的研究開發[C]//2004中國(蘇州)化纖與紡織品嫁接高新論壇論文集.北京:中國化學纖維工業協會,2004:129-133.
    [2] 中國紡織總會紡織機電研究所.熔融紡絲圓形孔噴絲板:FZ/T 92038—95[S].
    [3] 中國紡織總會紡織機電研究所.金鉑合金噴絲頭:FZ/T 92027—94[S].北京:中國標準出版社,1994.
    [4] 劉讓同,李銳.噴絲板的設計生產[J].輕紡工業與技術,2011,40(1):17-20.
    [5] 朱洪飛,楊崇倡.磨料流技術在噴絲板微孔加工中的應用[J].紡織器材,2009,36(1):27-29.
     

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