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1 制作步骤(1)先将三通分成两大部分 (见图 1)。图 1 将三通风管分成两大部分(2 )用联合角咬口 (或单平咬口折方 )法制作三通主管 ,并在两端铆上法蓝备用。将三通支管部分的长度设定为Ｌ =2 0 0ｍｍ(或 2 50ｍｍ) ,三通支管顺气流方向的圆弧半径Ｒ取 2 0 0ｍｍ (或 2 50ｍｍ)
1 production steps (1) the first three links into two parts (see Figure 1). Figure 1 divides the three-way air duct into two major sections. (2) A three-way main is made with a joint corner (or single point bite) and rifled onto the flange at both ends. The length of the three-way branch pipe is set to be L = 200 mm (or 250 mm). The radius R of the circular branch of the tee branch pipe in the direction of the airflow is taken as 200 mm (or 250 mm)