Institute of New Materials, Guangdong Academy of Sciences

Chunming Deng

Min Liu

Changguang Deng

Dongdong Dong

Xingchi Chen

Kesong Zhou

Chen Song

Wenyou Ma

Mingjiang Dai

Yapeng Zhang

Jifu Zhang

Taikai Liu

Kui Wen

Disclosed are a GM type cryogenic refrigerator rotary valve and a preparation method therefor. The GM type cryogenic refrigerator rotary valve comprises an aluminum alloy rotating valve and an alumina ceramic membrane. A valve body of the aluminum alloy rotating valve is provided with a first surface for arranging a working boss and a second surface opposite to the first surface; and a high-pressure hole and a low-pressure groove are both provided in the working boss, and a vent hole is provided in the first surface; the high-pressure hole and the vent hole both penetrate the valve body, and an air chamber is formed on the second surface. The alumina ceramic membrane is plated on surface of the aluminum alloy rotating valve. The preparation method comprises: plating an alumina ceramic membrane on surface of an aluminum alloy rotating valve by means of a micro-arc oxidation process.

Gm type cryogenic refrigerator rotary valve

Provided are a solid oxide fuel cell/electrolytic cell and electric stack, which relate to the field of cells. A metal support frame is molded in one step or more steps through the additive manufacturing technology. And then a fuel/electrolytic cell functional layer is formed on the metal support frame by means of thermal spraying, tape casting, screen printing or chemical vapor deposition method, and self-sealing of the solid oxide fuel cell/electrolytic cell is realized through a dense structure of electrolyte.

Solid oxide fuel cell/electrolytic cell and electric stack prepared based on additive manufacturing

Growing community of inventors

Guangdong, China

Chunming Deng