Avoiding splicing at the r-point of the dish-shaped tube cap can prevent thinning and high stress.
When joining, weld seams must be oriented either radially or circumferentially. This requirement may be lifted for larger pipe caps in the future. Additionally, there’s a specific minimum distance required between joints: it should exceed 3δ but not be less than 100 mm. (The heat-affected zone during welding is a high-stress area, and the chemical composition in this region can suffer burn-off. Therefore, it’s crucial to avoid this high-stress zone, as its extent depends on the material thickness. Based on practical experience, the stress-relief length typically extends beyond 3δ—while still remaining no shorter than 100 mm.) However, this requirement is particularly challenging to meet in refrigeration equipment due to their unique design and operational characteristics.
Testing equipment
Cap tube
Share:
Product Categories:
Keywords: Pipe Fittings
Get a quote
Please leave your contact information, and our specialists will get back to you as soon as possible!
