Tsinghua University

Ganlin Cheng

XiaoHong Jia

Chong Xiang

YiJie Huang

Fei Guo

YuMing Wang

Shengshan Chen

Fan Zhang

Lei Tan

Yongjian Li

ZhaoXiang Zhang

Bingzhe Chen

Qiyao Chen

A material testing machine, including a machine body, a first fixing element, a second fixing element and a detection assembly; the first and the second fixing elements are mounted to the machine body, the first fixing element is configured to mount a first testing element, and the second fixing element is configured to mount a second testing element; in a first state, the first and the second testing elements are in sliding contact; in a second state, the first fixing element drives the first testing element to collide with the second testing element; the detection assembly is configured to detect a target parameter, and in the first state, the target parameter includes a friction force and/or, a friction sound between the first and the second testing elements; and in the second state, the target parameter includes a collision force received by the first or the second testing element.

Material testing machine

An equipment for sealing-performance test includes a housing, a fixed mechanism and a detection part; the housing is configured to accommodate the fixed mechanism, and an abutting part is formed in the housing and is configured to abut against an outer side of a sealing ring; the fixed mechanism includes a central rod, a plurality of fixed blocks and a driving assembly, the central rod extends along a direction parallel to the axial direction of the central rod, the plurality of fixed blocks are evenly disposed along a circumferential direction of the central rod, and the driving assembly is configured to drive the plurality of fixed blocks to move along a radial direction of the central rod; a test cavity and a detection cavity are formed in the housing, the test cavity is filled with a test fluid, and is separated from the detection cavity by the sealing ring.

Equipment for sealing-performance test

Embodiments of the present disclosure belong to the field of valve sealing, and in particular, relate to a test device for simulating sealing performance of a one-way valve. A box is provided with a gas inlet pipe and a gas outlet pipe, the gas inlet pipe is communicated with a gas source, a detection device is communicated with the gas outlet pipe, the detection device is used to detect detection gas input into the box by the gas source, a sleeve is connected to the gas inlet pipe, one end of the sleeve is communicated with the gas source, the other end of the sleeve has a gas outlet, one end of a fitting piece is used to block the gas outlet, and the other end of the fitting piece is connected to a driving member, which is used to drive the fitting piece to move and rotate.

Test device for detecting sealing performance of one-way valve

A pressure-adjustable auxiliary control system for high-pressure gas sealing detection includes: a high-pressure chamber environment monitoring unit configured to construct high-pressure test gas sealing environment and to test sealing performance of a sealing member; a first gas pipeline divided into two branches, of which one branch is connected to the high-pressure chamber environment monitoring unit as a first gas replacement path; a second gas pipeline which is connected to a test gas pressurization path together with the other branch of the first gas pipeline, where a first booster pump processing unit and a second booster pump processing unit are sequentially arranged in the test gas pressurization path for pressurizing the test gas, and are connected to the high-pressure chamber environment monitoring unit; a system air control module configured for control of respective air control valves; and a booster pump air control module and a driving air source preprocessing unit.

Pressure-adjustable auxiliary control system for high-pressure gas sealing detection

Growing community of inventors

Beijing, China

Ganlin Cheng