Title:
TANTALUM-TUNGSTEN ALLOY PRODUCT AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2024/021218
Kind Code:
A1
Abstract:
A tantalum-tungsten alloy product and a preparation method therefor. The preparation method for tantalum-tungsten alloy comprises the following steps: (1) providing spherical tantalum-tungsten alloy powder (4), wherein the spherical tantalum-tungsten alloy powder (4) is characterized in that the lower limit of the particle size is 15-25 µm, the upper limit of the particle size is 50-60 µm, the time for 50 g of the powder (4) to pass through a standard funnel is 5-10 s, the sphericity of the powder (4) is greater than or equal to 0.8, the hollow particle ratio of the powder (4) is less than or equal to 5%, and the apparent density is 9-11 g/cm3; (2) processing and molding the spherical tantalum-tungsten alloy powder (4) by using a 3D printing process to obtain a printed blank; (3) performing printing post-treatment on the printed blank; and (4) performing vacuum heat treatment on a product from the previous step, wherein the temperature of the vacuum heat treatment is 1350°C to 1750°C, and the time is 30-90 min.
Inventors:
LI XIAOPING (CN)
LI XINGYU (CN)
ZHANG YAJUN (CN)
TUO WANYONG (CN)
LIU LEI (CN)
MA JING (CN)
LI XINGYU (CN)
ZHANG YAJUN (CN)
TUO WANYONG (CN)
LIU LEI (CN)
MA JING (CN)
Application Number:
PCT/CN2022/116002
Publication Date:
February 01, 2024
Filing Date:
August 31, 2022
Export Citation:
Assignee:
NINGXIA ORIENT INTELLIGENT MANUFACTURING TECH CO LTD (CN)
International Classes:
B22F10/28; B22F1/00; B22F10/64; B33Y10/00; C22C27/02
Foreign References:
| CN112795828A | 2021-05-14 | |||
| CN113319292A | 2021-08-31 | |||
| CN113427008A | 2021-09-24 | |||
| CN114273676A | 2022-04-05 | |||
| CN112626404A | 2021-04-09 | |||
| US20210016348A1 | 2021-01-21 | |||
| CA3091448A1 | 2020-02-06 |
Attorney, Agent or Firm:
CCPIT PATENT AND TRADEMARK LAW OFFICE (CN)
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