A new method of manufacturing oblique tees with large diameter
A production method and technology of inclined tee, which are applied in the field of new large-diameter inclined tee, can solve the problems of difficult control of the temperature of the tee body, high cost, quality defects of large-diameter SA-335P91 inclined tee, etc., and achieve preheating. The effect of easy temperature control, low production cost and reliable quality
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[0039] according to Figure 1 to Figure 2 As shown, a novel large-diameter oblique tee manufacturing method is characterized in that the specific steps are as follows:
[0040] A. Manufacturing and molding of oblique tees
[0041] The three-way inclined branch pipe 1 and the three-way straight mother pipe 2 are cut by mechanical processing, and the pipe fittings are cut, polished and spliced into the required tee shape, and the three-way inclined branch pipe 1 and the three-way straight mother pipe 2. The spliced grooves are processed. The three-way inclined branch pipe 1 and the three-way straight main pipe 2 are made of SA-335P91 material. The processed grooves shall be based on the fact that the roots can be penetrated during manual argon tungsten arc welding.
[0042] B. Positioning welding of oblique tee piece 1
[0043] The joint of the three-way inclined branch pipe 1 and the three-way straight main pipe 2 is provided with a positioning block 3, and the positionin...
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