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    • 61. 发明授权
    • Process for producing cellulose triacetate films
    • 生产三醋酸纤维素薄膜的方法
    • US5188788A
    • 1993-02-23
    • US736342
    • 1991-07-26
    • Yuji SuzukiTakeshi Yamazaki
    • Yuji SuzukiTakeshi Yamazaki
    • B29C41/12B29C41/24B29C41/34B29D7/01B29K1/00B29L7/00C08J5/18
    • B29C41/24B29D7/01B29K2001/00
    • A process for producing cellulose triacetate films that is capable of not only suppressing the growth of foreign matter on transport rollers, but also markedly reducing the necessary number of cleaning operations. The process includes steps of casting a solution of cellulose triacetate onto a support having it surface cooled at 20.degree. C. or below, drying and cooling the solution cast onto the support to solidify the cast solution, separating the subsequently solidified film from the support, and transporting the film while it dries on transport rollers. In accordance with the invention, for a weight proportion of the solvents in the film as separated from the support of at least 40 wt %, the surface of the transport rollers is made of a material having a surface energy of no more than 80 dynes/cm at 20.degree. C.
    • 一种能够不仅抑制运送辊上的异物生长的纤维素三乙酸酯膜的制造方法,而且显着地减少了必要的清洗量。 该方法包括以下步骤:将三乙酸纤维素溶液浇注到其表面冷却至20℃或更低的载体上,干燥并冷却流延到载体上的溶液以固化流延溶液,将随后固化的膜与载体分离, 并在运送辊上干燥时运送胶片。 根据本发明,对于与载体分离的膜中溶剂的重量比例至少为40重量%,输送辊的表面由表面能不超过80达因/厘米2的材料制成, cm在20℃
    • 67. 发明授权
    • Method of producing hardened aluminum alloy forming sheet having high
strength and superior corrosion resistance
    • 制造具有高强度和优异的耐腐蚀性的硬化铝合金成形片的方法
    • US4968356A
    • 1990-11-06
    • US482306
    • 1990-02-20
    • Hiroki TanakaShin TsuchidaYuji Suzuki
    • Hiroki TanakaShin TsuchidaYuji Suzuki
    • C22C21/06C22F1/047G11B23/087
    • C22C21/06C22F1/047G11B23/08778
    • A method of producing a hardened aluminum alloy forming sheet having a high strength and a superior corrosion resistance, the method comprising the steps of (1) providing a melt having a composition consisting of, in weight percentage, 4.0 to 6.0% Mg, 0.05 to 0.50% Cu, 0.10 to 1.0% Mn, 0.01 to 0.05% Ti and the balance being aluminum and impurities; (2) cooling to solidify the melt; (3) hot rolling and cold rolling to form a rolled sheet; and (4) heat treating the rolled sheet by heating to a temperature of 150.degree. to 300.degree. C. at a heating rate of at least 5.degree. C./second, holding within five minutes at the temperature of 150.degree. to 300.degree. C. and cooling to a temperature of 70.degree. C. or less at a cooling rate of at least 30.degree. C./second. The melt may further contain 0.05 to 0.20% by weight Cr and the heat treatment of the step (4) may be carried out under tension after flattening said cold-rolled sheet by leveling at ordinary temperatures. The aluminum alloy sheet is especially suitable for use in manufacturing easy open can ends.
    • 一种制造具有高强度和优异的耐腐蚀性的硬化铝合金形成片材的方法,所述方法包括以下步骤:(1)提供一种熔体,其熔体组成由重量百分比组成,4.0%至6.0%的Mg,0.05至 0.50%Cu,0.10〜1.0%Mn,0.01〜0.05%Ti,余量为铝和杂质; (2)冷却固化熔体; (3)热轧冷轧以形成轧制板; 和(4)以150℃〜300℃的温度加热至150℃〜300℃的温度,以5℃/秒以上的加热速度进行热处理。 并以至少30℃/秒的冷却速度冷却至70℃以下的温度。 熔融物还可以含有0.05〜0.20重量%的Cr,并且可以在常压下平整所述冷轧板后使其在张力下进行热处理。 铝合金板材特别适用于制造易开罐罐头。