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1.发明授权
公开(公告)号：US5051216A
公开(公告)日：1991-09-24
申请号：US401775
申请日：1989-09-01
摘要： Acrylonitrile precursor fibers are subjected to a flame-resisting treatment, in an oxidizing atmosphere, while being elongated at least 3%, until a density of 1.22 g/cm.sup.3 is reached. The fibers are further treated to increase density up to 1.40 g/cm.sup.3, and then heat treated while undergoing further elongation, followed by higher temperature heat treatment while under tension. The resulting fibers have excellent properties, including high strand tenacity, high strand modulus, and high density.
摘要翻译： 丙烯腈前体纤维在氧化气氛中进行阻燃处理，同时延伸至少3％，直到达到1.22g / cm 3的密度。 进一步处理纤维以增加至1.40g / cm 3的密度，然后在进一步伸长的同时热处理，然后在张力下进行更高温度的热处理。 所得纤维具有优异的性能，包括高链强度，高链模量和高密度。
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2.发明授权Carbon fibers having high tenacity and high modulus of elasticity and process for producing the same 失效具有高强度和高弹性模量的碳纤维及其制造方法
公开(公告)号：US5281477A
公开(公告)日：1994-01-25
申请号：US682383
申请日：1991-04-09
CPC分类号： D01F9/22 , D01F9/32 , Y10T428/2918
摘要： A carbon fiber of a high tenacity and a high modulus of elasticity having a fiber diameter of 1 to 6 .mu.m, a strand tenacity of 430 kg/mm.sup.2 or more, a strand modulus of elasticity of 28 ton/mm.sup.2 or more and a density of 1.755 g/cm.sup.3 or more, and a process for producing the same.The above-mentioned carbon fiber has extremely useful properties as a raw material for composite materials to be used not only for sporting goods such as fishing rods or golf clubs but also in aerospace industries.
摘要翻译： 一种高强度和高弹性模量的碳纤维，其纤维直径为1〜6（my）m，绞合强度为430kg / mm 2以上，弹性模量为28ton / mm 2以上， 密度为1.755g / cm 3以上，以及其制造方法。 上述碳纤维作为复合材料的原料具有非常有用的特性，不仅用于诸如钓鱼竿或高尔夫球杆之类的体育用品，而且用于航天工业。
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公开(公告)号：US4609540A
公开(公告)日：1986-09-02
申请号：US733797
申请日：1985-05-14
摘要： A process for producing a carbon fiber having a tenacity of 450 kg/mm.sup.2 or more, preferably 500 kg/mm.sup.2 or more, and a modulus of elasticity of 25 ton/mm.sup.2 or more which comprises subjecting a polyacrylonitrile-type fiber to a flame-resisting treatment in a flame-resisting treatment furnace provided with a plural number of driving rolls in an oxidizing atmosphere at 200.degree. to 400.degree. C. under application of multistep elongation, during said treatment the respective percentage of elongation in said multistep elongation being set respectively at a value which is equal to or within .+-.3% of the value of the percentage of elongation En indicating an inflection point Pn obtainable from the load and the percentage of elongation determined in advance by experimental measurements, and then subjecting the treated fiber to carbonization.
摘要翻译： 制造强度为450kg / mm2以上，优选为500kg / mm2以上的弹性模量为25ton / mm 2以上的碳纤维的制造方法，其特征在于，将聚丙烯腈型纤维进行阻燃处理， 在施加多段伸长的情况下，在200-400℃的氧化气氛中在具有多个驱动辊的阻燃处理炉中进行耐蚀处理，在所述处理期间分别设定所述多段伸长率的相应百分率 在等于或者在表示从负载得到的拐点Pn的伸长百分比En的值的±3％的值，以及通过实验测量预先确定的伸长百分比之后，然后对经处理的纤维 碳化。
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