文章來源：試驗機廠家 作者：濟南邁捷試驗機 發布時間：2023-04-24 16:42:39 瀏覽次數：
At present, the sound card frame of pressure testing machines is divided into two types of structures: one is based on the combination of four upright rods, and the other is the overall casting structure.
The overall cost of casting production and processing is relatively high, but it does not deform; Although the production cost of the combined structure is low and the sales market price is relatively low, there are even some pressure testing machine manufacturers whose entire equipment price is around 10000 yuan. At present, there are many market shares of this structure tester, but this structure encounters many problems.
The pressure testing machine of the sound card rack combination type is supported by four upright poles to support the upper pressure plate of the testing instrument, and the four upright poles are locked by left and right nuts. If the ball socket lacks sufficient playability
Several issues may arise:
Firstly, the effective length of these four upright rods after being tightened must be consistent, ensuring the flatness of the upper and lower pressure plates within a certain area;
Second, in the long-term concrete breaking vibration, the nuts that clamp the upright pole are very easy to loosen, and the screw teeth are easy to damage, resulting in the unequal upper and lower platens, and the experimental data is undoubtedly distorted.
The above are some small knowledge points about pressure testing machines. If you still don't understand, please follow the Meijie experimental equipment and welcome everyone to come and purchase!