The T-shaped groove square box workbench is manufactured according to JB/T3411.56-99 standard, made of HT200 material, and is used for checking and marking the parallelism and perpendicularity of components. It can be made into a square box or tube of equal height.

requirement:

Each working surface shall not have rust, scratches, cracks, dents, or other defects that affect the metrological performance. Non working surfaces should be sandblasted and painted, with chamfered edges. There should be signs on the inner wall of the square box, indicating specifications, dimensions, grade, factory number, and manufacturer name.

When selecting the flatness standard for T-shaped groove square boxes, it is generally determined according to the usage situation. Flat plates with a flatness above level 3 are used for inspection, marking, assembly, etc., while T-shaped groove platforms with a flatness below level 3 are generally used for riveting and welding.

Service life and precautions:

The service life of a typical T-shaped groove square box is very long. As long as the correct methods are used and stored, the accuracy of the working surface of the T-shaped groove square box can be maintained for more than 2 years. When the accuracy decreases, it can be restored through debugging or scraping processes, and the service life can reach 50-100 years. Therefore, during use, it is important to be careful not to use and store it in humid, corrosive, high and low temperature environments, so as to extend the service life and improve the quality of work.