TITANIUM CARBIDE AS A FRICTION AND WEAR MODIFIER IN FRICTION MATERIALS
    1.
    发明申请
    TITANIUM CARBIDE AS A FRICTION AND WEAR MODIFIER IN FRICTION MATERIALS 有权
    碳化钛作为摩擦材料的摩擦和磨损改性剂

    公开(公告)号:US20110180946A1

    公开(公告)日:2011-07-28

    申请号:US12410903

    申请日:2009-03-25

    IPC分类号: C01B31/22

    摘要: Methods of making a carbon-carbon composite preforms, particularly suitable as brake discs in aircraft landing systems, by combining titanium carbide particles ranging in size from 0.01 to 10 microns in diameter, resinous binder, and carbon fibers or carbon fiber precursors in a mold, and subsequently subjecting the combined components to pressure and heat to carbonize the resinous binder by methods, thereby providing the carbon-carbon composite preform having particulate titanium carbide uniformly distributed throughout its mass. Prior to combining the titanium carbide and the binder with the fibers in this process, the particulate titanium carbide may be mixed with liquid binder, the resulting TiC/binder mixture may then solidified, and the resulting solid TiC/binder mixture may be ground into a fine powder for use in the process. Also, compositions for preparing a carbon-carbon composite friction materials, and methods of improving wear and dynamic stability in a carbon-carbon composite brake discs.

    摘要翻译: 通过将尺寸范围为0.01至10微米直径的碳化钛颗粒,树脂粘合剂和模具中的碳纤维或碳纤维前体组合制备碳 - 碳复合预制件,特别适用于飞机着陆系统中的制动盘的方法, 并随后使组合的组分进行加压和加热以通过方法使树脂粘合剂碳化,由此提供碳 - 碳复合预成型体,其中颗粒状碳化钛均匀地分布在其整个质量中。 在该方法中将碳化钛与粘合剂与纤维结合之前,可将颗粒碳化钛与液体粘合剂混合,然后使所得到的TiC /粘合剂混合物固化,并将所得固体TiC /粘合剂混合物研磨成 精细粉末用于该过程。 另外,用于制备碳 - 碳复合材料摩擦材料的组合物,以及改善碳 - 碳复合制动盘中的磨损和动态稳定性的方法。

    Bonding of carbon-carbon composites using titanium carbide
    3.
    发明授权
    Bonding of carbon-carbon composites using titanium carbide 有权
    使用碳化钛粘结碳 - 碳复合材料

    公开(公告)号:US07858187B2

    公开(公告)日:2010-12-28

    申请号:US11391255

    申请日:2006-03-29

    IPC分类号: B32B9/00

    摘要: Method of joining carbon-carbon composite pieces together, e.g. in the refurbishment of aircraft brake discs. The method includes the steps of: providing a first carbon-carbon composite piece and a second carbon-carbon composite piece, wherein the second carbon-carbon composite piece has a surface that is complementary to a surface of said first carbon-carbon composite piece; providing a layer of a mixture of titanium powder and carbon powder on the first complementary mating surface; arranging the second carbon-carbon composite piece on the powder layer such that the second complementary mating surface is matched to the first complementary mating surface, thereby forming a construct of the first carbon-carbon composite piece, the powder layer, and the second carbon-carbon composite piece; placing the construct into a press and applying pressure to the construct to press together the two pieces joined at their complementary surfaces; and applying an electrical current to the powder in the construct to initiate an oxidation-reduction reaction, thereby bonding the carbon-carbon composite pieces together.

    摘要翻译: 将碳 - 碳复合材料片连接在一起的方法,例如 在飞机制动盘的翻新。 该方法包括以下步骤:提供第一碳 - 碳复合片和第二碳 - 碳复合片,其中所述第二碳 - 碳复合片具有与所述第一碳 - 碳复合片的表面互补的表面; 在第一互补配合表面上提供钛粉末和碳粉末的混合物层; 将第二碳 - 碳复合片布置在粉末层上,使得第二互补配合表面与第一互补配合表面匹配,由此形成第一碳 - 碳复合片,粉末层和第二碳 - 碳复合片的构造, 碳复合片; 将构造物放置在压力机中并向构件施加压力以将在其互补表面处接合的两个块压在一起; 并向构件中的粉末施加电流以引发氧化还原反应,从而将碳 - 碳复合材料片粘合在一起。

    Titanium carbide as a friction and wear modifier in friction materials
    5.
    发明授权
    Titanium carbide as a friction and wear modifier in friction materials 有权
    碳化钛作为摩擦材料中的摩擦和磨损改性剂

    公开(公告)号:US08858846B2

    公开(公告)日:2014-10-14

    申请号:US12410903

    申请日:2009-03-25

    摘要: Methods of making a carbon-carbon composite preforms, particularly suitable as brake discs in aircraft landing systems, by combining titanium carbide particles ranging in size from 0.01 to 10 microns in diameter, resinous binder, and carbon fibers or carbon fiber precursors in a mold, and subsequently subjecting the combined components to pressure and heat to carbonize the resinous binder by methods, thereby providing the carbon-carbon composite preform having particulate titanium carbide uniformly distributed throughout its mass. Prior to combining the titanium carbide and the binder with the fibers in this process, the particulate titanium carbide may be mixed with liquid binder, the resulting TiC/binder mixture may then solidified, and the resulting solid TiC/binder mixture may be ground into a fine powder for use in the process. Also, compositions for preparing a carbon-carbon composite friction materials, and methods of improving wear and dynamic stability in a carbon-carbon composite brake discs.

    摘要翻译: 通过将尺寸范围为0.01至10微米直径的碳化钛颗粒,树脂粘合剂和模具中的碳纤维或碳纤维前体组合制备碳 - 碳复合预制件,特别适用于飞机着陆系统中的制动盘的方法, 并随后使组合的组分进行加压和加热以通过方法使树脂粘合剂碳化,由此提供碳 - 碳复合预成型体,其中颗粒状碳化钛均匀地分布在其整个质量中。 在该方法中将碳化钛与粘合剂与纤维结合之前,可将颗粒碳化钛与液体粘合剂混合,然后使所得到的TiC /粘合剂混合物固化,并将所得固体TiC /粘合剂混合物研磨成 精细粉末用于该过程。 另外,用于制备碳 - 碳复合材料摩擦材料的组合物,以及改善碳 - 碳复合制动盘中的磨损和动态稳定性的方法。

    Pitch densification of carbon fiber preforms
    6.
    发明申请
    Pitch densification of carbon fiber preforms 审中-公开
    碳纤维预制棒的间距致密化

    公开(公告)号:US20100078839A1

    公开(公告)日:2010-04-01

    申请号:US11471602

    申请日:2006-06-21

    IPC分类号: C01B31/00

    摘要: A pitch densification process which is widely applicable in the densification of carbon fiber preforms and stabilized pitch fiber preforms. The process includes: (a.) introducing liquid pitch into a fibrous carbon preform; (b.) carbonizing the pitch-impregnated preform by heating it in the absence of oxidizing agents; and subsequently (c.) further densifying the carbonized pitch-impregnated preform. The pitch used for densification may be coal tar pitch, petroleum pitch, or synthetic pitch. The softening point of the pitch will normally range from 100° C. to 340° C., depending upon the properties to be imparted to the finished product.

    摘要翻译: 沥青密实化方法,广泛应用于碳纤维预成型体和稳定沥青纤维预制件的致密化。 该方法包括:(a)将液体沥青引​​入纤维状碳预制件中; (b)通过在不存在氧化剂的情况下加热沥青浸渍的预成型体来碳化沥青浸渍的预成型体; 并随后(c。)进一步致密化碳化沥青浸渍的预制件。 用于致密化的沥青可以是煤焦油沥青,石油沥青或合成沥青。 根据赋予成品的性质,沥青的软化点通常在100℃至340℃的范围内。

    Reusable core carbon-carbon composite brake disc
    7.
    发明申请
    Reusable core carbon-carbon composite brake disc 审中-公开
    可重复使用的碳碳复合制动盘

    公开(公告)号:US20100000070A1

    公开(公告)日:2010-01-07

    申请号:US11028719

    申请日:2005-01-04

    IPC分类号: B21J15/00 B32B37/02

    摘要: Method of manufacturing carbon-carbon composite brake disc comprising a dense reusable core. Preferably, the reusable core has a density of 1.8-2.05 g/cc. The method includes: forming a dense carbon-carbon composite core; positioning the dense core in a location within a carbon-carbon composite brake disc; and fixing the dense carbon-carbon composite core in place in its location within the carbon-carbon composite brake disc. It is economically advantageous to recover the dense core from a worn brake disc prior to positioning it in the brake disc. Also, an annular carbon-carbon composite brake disc made up of a friction surface containing 15-75 weight-% carbon-containing fibers and 25-85 weight-% resin binder and a dense carbon-carbon composite core comprising 40-75 weight-% carbon-containing fibers and 25-60 weight-% resin binder.

    摘要翻译: 制造碳 - 碳复合制动盘的方法,其包括密集的可重复使用的芯。 优选地,可重复使用的芯的密度为1.8-2.05g / cc。 该方法包括:形成致密的碳 - 碳复合芯; 将致密核心定位在碳 - 碳复合制动盘内的位置; 并将致密的碳 - 碳复合材料芯固定在碳 - 碳复合制动盘内的位置。 在将其定位在制动盘中之前,从磨损的制动盘回收致密的核心在经济上是有利的。 另外,由含有15-75重量%含碳纤维和25-85重量%树脂粘合剂的摩擦表面和一个含有40-75重量%的含碳纤维的密集碳 - 碳复合材料芯构成的环形碳 - 碳复合制动盘, %含碳纤维和25-60重量%树脂粘合剂。

    Pitch infiltration of carbon fiber preforms under high pressure
    8.
    发明授权
    Pitch infiltration of carbon fiber preforms under high pressure 有权
    在高压下沥青渗碳碳纤维预制件

    公开(公告)号:US07632436B2

    公开(公告)日:2009-12-15

    申请号:US11455743

    申请日:2006-06-20

    IPC分类号: C01B31/00

    摘要: Process of manufacturing carbon-carbon composite preform by: (i.) arranging batch of carbon fiber preforms in infiltration vessel; (ii.) flooding vessel with hot liquid phase pitch at atmospheric pressure in inert atmosphere; (iii.) raising pressure in infiltration vessel to elevated pressure, and then slowly lowering pressure; and (iv.) repeating step (iii.). An apparatus that may be used is a heated infiltration vessel capable of operating at pressures above 100 psi, possible equipped with means to circulate heated pitch inside the vessel, in order to facilitate heat transfer into the carbon fiber preforms being infiltrated by the pitch. The need for a vacuum pump is eliminated, and the time spent heating the preform is substantially reduced. Instead of vacuum, cycled high pressure is employed to infiltrate carbon fiber preforms with pitch. The use of preheated pitch as a heat transfer agent avoids the slow transfer of heat into the preform prior to infiltration.

    摘要翻译: 通过以下步骤制造碳 - 碳复合预制件的方法:(i)在渗透容器中排列一批碳纤维预制件; (ii)在大气压下在惰性气氛中具有热液相沥青的溢流容器; (iii)将渗透容器中的压力提高到升高压力,然后缓慢降低压力; 和(iv)重复步骤(iii)。 可以使用的装置是能够在高于100psi的压力下操作的加热的渗透容器,可能配备有在容器内循环加热沥青的装置,以便促进被沥青渗透的碳纤维预制件的热传递。 消除了对真空泵的需要,并且大大减少了加热预制件所花费的时间。 代替真空,采用循环高压渗透具有沥青的碳纤维预成型件。 使用预热的沥青作为传热剂避免了在渗透之前将热量缓慢地传递到预制件中。

    Formulation for the manufacture of carbon-carbon composite materials
    9.
    发明授权
    Formulation for the manufacture of carbon-carbon composite materials 有权
    制造碳 - 碳复合材料的配方

    公开(公告)号:US07438839B2

    公开(公告)日:2008-10-21

    申请号:US10956582

    申请日:2004-10-01

    IPC分类号: B29C43/02

    摘要: Method for manufacturing a carbonized carbon-carbon composite preform, by: mixing (a) chopped carbon fiber, chopped stabilized pitch fiber, or chopped oxidized polyacrylonitrile (PAN) fiber, (b) thermoplastic pitch binder powder, and (c) activated carbon powder to form a mixture of 15-60 parts by weight of chopped carbon fiber or chopped stabilized pitch fiber or chopped oxidized PAN, 28-83 parts by weight of thermoplastic pitch binder powder, and 1-12 parts by weight of activated carbon powder; depositing this mixture into a mold; pressing/heating the materials in the mold to form a preform by compaction; removing the compacted preform from the mold; and carbonizing the compacted preform. The preform is preferably configured in the form of an aircraft landing system brake disc.

    摘要翻译: 通过以下方法制备碳化碳 - 碳复合预型体:(a)将短切碳纤维,短切稳定沥青纤维或短切的氧化聚丙烯腈(PAN)纤维,(b)热塑性沥青粘合剂粉末和(c)活性炭粉末 形成15-60重量份短切碳纤维或短切稳定沥青纤维或短切氧化PAN,28-83重量份热塑性沥青粘合剂粉末和1-12重量份活性炭粉末的混合物; 将该混合物沉积到模具中; 压制/加热模具中的材料以通过压实形成预制件; 从模具中移除压实的预成型件; 并将压实的预制件碳化。 预成型件优选地以飞机着陆系统制动盘的形式配置。