中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

13 records (took 0.019 seconds)

    Methods of Producing A Titanium Alloy Product
    3.
    发明申请
    Methods of Producing A Titanium Alloy Product 有权

    公开(公告)号：US20230138417A1

    公开(公告)日：2023-05-04

    申请号：US17912305

    申请日：2021-02-01

    Applicant: University of Utah Research Foundation

    Inventor： Zhigang Zak Fang ,  Yang Xia ,  Pei Sun ,  Ying Zhang

    IPC: C22C14/00 ,  C22C1/04 ,  C22B34/12 ,  B22F9/20 ,  B22F9/04

    Abstract: A method (100) for producing a particulate titanium alloy product can include preparing (110) a composite particulate oxide mixture with TiO2 powder and at least one alloying element powder. The composite particulate oxide mixture can be co-reduced (120) using a metallic reducing agent under a hydrogen atmosphere at a reduction temperature for a reduction time sufficient to produce a hydrogenated titanium alloy product. The hydrogenated titanium alloy product can then be heat treated (130) under a hydrogen atmosphere and a heat treating temperature to reduce pore size and specific surface area to form a heat treated hydrogenated titanium product. The heat treated hydrogenated titanium product can be deoxygenated (140) to reduce residual oxygen to less than 0.2 wt % to form a deoxygenated hydrogenated titanium product as a particulate. The deoxygenated hydrogenated titanium product can optionally be dehydrogenated (150) to form the titanium alloy product as a particulate.

    Methods and systems for 3D printing with powders
    4.
    发明授权
    Methods and systems for 3D printing with powders 有权

    公开(公告)号：US11198177B2

    公开(公告)日：2021-12-14

    申请号：US16644928

    申请日：2018-09-05

    Applicant: University of Utah Research Foundation

    Inventor： Zhigang Zak Fang ,  Pei Sun

    IPC: B22F3/115 ,  B22F1/00 ,  B22F3/10 ,  B28B1/00 ,  B22F12/00 ,  B33Y10/00 ,  B33Y30/00 ,  B22F10/10

    Abstract: A method of printing a three dimensional article (201) can include forming a bottom layer of the three dimensional article (201) by spraying a dry build material powder (210) onto a build platform (230) while heating the dry build material powder (210). The dry build material powder (210) can include metal or ceramic particles mixed with a polymeric binder having a softening point temperature. The dry build material powder (210) can be heated to a temperature above the softening point temperature such that the dry build material powder (210) adheres to the build platform (230). Subsequent layers can be formed by spraying dry build material powder (210) onto a lower layer while heating the dry build material powder (210) such that the dry build material powder (210) adheres to the lower layer.

    METHODS OF PRODUCING A TITANIUM PRODUCT
    9.
    发明申请
    METHODS OF PRODUCING A TITANIUM PRODUCT 审中-公开
    生产钛制品的方法

    公开(公告)号：US20160108497A1

    公开(公告)日：2016-04-21

    申请号：US14935245

    申请日：2015-11-06

    Applicant: University of Utah Research Foundation

    Inventor： Zhigang Zak Fang ,  Ying Zhang ,  Yang Xia ,  Pei Sun

    IPC: C22B34/12 ,  C22B3/04

    Abstract: A method (500) for producing a titanium product is disclosed. The method (500) can include obtaining TiO2-slag (501) and reducing impurities in the TiO2-slag (502) to form purified TiO2 (503). The method (500) can also include reducing the purified TiO2 using a metallic reducing agent (504) to form a hydrogenated titanium product comprising TiH2 (505). The hydrogenated titanium product can be dehydrogenated (506) to form a titanium product (508). The titanium product can also be optionally deoxygenated (507) to reduce oxygen content.

    Abstract translation: 公开了一种用于生产钛产品的方法（500）。 方法（500）可以包括获得TiO 2渣（501）和还原TiO 2渣（502）中的杂质以形成纯化的TiO 2（503）。 方法（500）还可以包括使用金属还原剂（504）还原纯化的TiO 2以形成包含TiH 2（505）的氢化钛产物。 可以将氢化钛产物脱氢（506）以形成钛产物（508）。 钛产物也可以任选脱氧（507）以减少氧含量。

    POWDER METALLURGY METHODS FOR THE PRODUCTION OF FINE AND ULTRAFINE GRAIN TI AND TI ALLOYS
    10.
    发明申请
    POWDER METALLURGY METHODS FOR THE PRODUCTION OF FINE AND ULTRAFINE GRAIN TI AND TI ALLOYS 有权
    用于生产精细和超细颗粒TI和TI合金的粉末冶金方法

    公开(公告)号：US20140255240A1

    公开(公告)日：2014-09-11

    申请号：US14152787

    申请日：2014-01-10

    Applicant: University of Utah Research Foundation

    Inventor： Zhigang Zak Fang ,  Pei Sun ,  James Paramore ,  Hongtao Wang ,  Mark Koopman ,  Lu Yang

    IPC: B22F3/24

    CPC classification number: C22C1/0458 ,  B22F3/101 ,  B22F2999/00 ,  B22F2201/013 ,  B22F2201/20

    Abstract: A process includes sintering hydrogenated titanium or titanium hydride (TiH2) and/or Ti metal in a dynamically controlled hydrogen atmosphere with hydrogen partial pressure greater than 0.01 atmosphere and at elevated temperature, to form a sintered titanium material; equilibrate the sintered material at an equilibration temperature below the sintering temperature and above the phase transformations including eutectoid decomposition temperature for an equilibration time sufficient for the hydrogen within the sample to reach equilibrium and homogenize the sintered titanium material; holding the sintered titanium material at a hold temperature below the temperature of sintering and a hold time sufficient for phase transformations including eutectoid decomposition of the sintered titanium material; and heating the sintered titanium material under vacuum, inert atmosphere, or a combination of both at a hold temperature which is less than that of the sintering temperature, to form titanium metal, or a titanium metal alloy with fine or ultrafine grain sizes; where the dynamically controlled hydrogen atmosphere varies as a function of time and temperature throughout the thermal cycle and includes hydrogen during the sintering and phase transformations including eutectoid decomposition steps.

    Abstract translation: 一种方法包括在氢分压大于0.01大气压和升高的温度下在动态控制的氢气气氛中烧结氢化钛或氢化钛（TiH 2）和/或Ti金属，以形成烧结的钛材料; 在低于烧结温度的平衡温度和高于包括共析分解温度的相变的平衡温度下平衡烧结材料，以获得足以使样品内的氢达到平衡并使烧结的钛材料均匀化的平衡时间; 将烧结的钛材料保持在低于烧结温度的保持温度和足以进行相变的保持时间，包括烧结的钛材料的共析分解; 在低于烧结温度的保持温度下在真空，惰性气氛或二者的组合下加热烧结的钛材料，以形成钛金属或具有精细或超细晶粒尺寸的钛金属合金; 其中动态控制的氢气氛在整个热循环中随着时间和温度的变化而变化，并且在包括共析分解步骤的烧结和相变过程中包括氢。

Patent Agency Ranking