Title:
MULTI-PATH INTERNALLY-MICROPOROUS EFFICIENT REFRIGERATION METHOD AND DEVICE FOR FROZEN SAND MOLD
Document Type and Number:
WIPO Patent Application WO/2024/093033
Kind Code:
A1
Abstract:
A multi-path internally-microporous efficient refrigeration method and device for a frozen sand mold. The device comprises a frozen sand mold forming chamber (1), an electric lifting platform (2), a Teflon porous liner (3), a removable porous aluminum plate (4), a frozen sand mold refrigeration device box (5), a sealing cover plate (6), an ultrasonic piezoelectric plate (7), a U-shaped condensing tube (8), an ultrasonic generator (9), and a low-temperature refrigeration system (10), wherein the Teflon porous liner (3) and the removable porous aluminum plate (4) are provided with through hole structures with the same size and shape, and are configured for rapid cooling from a surface to a core of molding sand. By activating the electric lifting platform (2), the Teflon porous liner (3) rises to the highest point for ease of demolding. The ultrasonic piezoelectric plate (7) with a high-low frequency dual mode can be used not only to vibrate and compact the frozen sand mold, but also to assist cutting and forming. The device can realize quick freezing, easy demolding and low-cost digital forming of a frozen sand mold.
Inventors:
SHAN ZHONGDE (CN)
SHI JIANPEI (CN)
YANG HAOQIN (CN)
SHI JIANPEI (CN)
YANG HAOQIN (CN)
Application Number:
PCT/CN2023/074059
Publication Date:
May 10, 2024
Filing Date:
February 01, 2023
Export Citation:
Assignee:
UNIV NANJING AERONAUTICS & ASTRONAUTICS (CN)
International Classes:
B22C9/02; B22D18/06; B33Y10/00; B33Y30/00
Foreign References:
| CN115625290A | 2023-01-20 | |||
| CN114558990A | 2022-05-31 | |||
| CN114888265A | 2022-08-12 | |||
| CN114850449A | 2022-08-05 | |||
| CN114799057A | 2022-07-29 | |||
| CN114535498A | 2022-05-27 | |||
| CN112872294A | 2021-06-01 | |||
| CN112077262A | 2020-12-15 | |||
| JP2012040569A | 2012-03-01 | |||
| JP2009066640A | 2009-04-02 |
Attorney, Agent or Firm:
NANJING ZHONGLIAN PATENT AGENCY CO., LTD. (CN)
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