1The rupture of the single-rib reinforced tee is on the shoulder branch pipe of the tee. This indicates that due to the effect of the reinforcing structure, the weak point of the three-way pipe shifts from the abdomen to the shoulder branch pipe. The weakening caused by the main pipe opening has been strengthened to a certain extent. However, in terms of endurance strength, the value of the single-rib reinforced tee is0.78It has not yet reached a level as strong as that of straight pipes.
　　2The rupture of the shawl reinforced three-way is still at the lower edge of the weld seam on the belly of the three-way, which indicates that the weak point of the three-way is still on the belly of the main pipe, which is in line with the characteristics of the failure at room temperature. Moreover, compared with the unreinforced three-way, it can be seen that the reinforcement effect is not obvious.
　　3Only the thickened tee of the main pipe broke on the branch pipe, and1=0.78This indicates that when using thick-walled pipes to weld tees, only thickening the main pipe without thickening the branch pipes cannot achieve the same strength level as straight pipes. Therefore, the branch pipes also need to be thickened to achieve the same strength as the straight pipes.

4Although the butterfly-reinforced tee was not tested in this experiment, the butterfly type and the single-rib type are of the same type of structure. The only difference is the cross-section of the reinforcing element. The test results should be applicable to the butterfly type structure. According to the test results, under the condition of considering a certain safety margin, the high-temperature endurance strength attenuation coefficients of both single-rib and butterfly-reinforced welded tees are recommended to be adopted0.70.

Foshan Weilihuang Trading Co., Ltd. is a leading manufacturer specializing in the production and sales of international and domestic stainless steel hardware accessories and its own brands. The company is located at Tianjinli Hardware Accessories Center, Lanshi 2nd Road, Chancheng District, Foshan City, Guangdong Province8seat10-12The number (i.e., the main entrance of the market) has an abundant supply of goods, a complete range of varieties, wide coverage, favorable prices, and stable and superior quality!

The company uses high-quality stainless steel and exquisite craftsmanship to ensure there are no weld marks at the interfaces. Its products feature novel designs, elegant craftsmanship, and long-lasting durability. The company has always adhered to the principle of quality first and reputation first. It is equipped with mature production facilities and has strong technical strength, thus ensuring the quality of its products. The company is willing to make unremitting efforts to join hands with our customers to create a win-win situation and provide high-quality products for our partners.