Manufacturing method of rolling round steel tube into plum blossom-shape tube
A manufacturing method, plum blossom tube technology, applied in the field of special-shaped steel pipe roll forming equipment, can solve the problems of high labor intensity, low production efficiency, and low production efficiency, and achieve the effects of reducing labor intensity, high production efficiency, and good product quality
Inactive Publication Date: 2009-12-09
DALIAN SAGE GROUP
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Problems solved by technology
[0003] 1. The production efficiency is not high, and the product quality is low; there is a certain length of waste pipe at the end of the hydraulically pushed steel pipe, which reduces the yield. The manufacturing cost of the mandrel in the pipe is high, and it can only be produced by a single piece, and the production efficiency is low. There is a set The special hydraulic system greatly increases the production cost.
[0004] 2. The labor intensity is high, the automation level is low, and the operation and maintenance are difficult.
Method used
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Embodiment Construction
[0027] figure 2 , 3 Shown is the concrete embodiment of the present invention, and it is through a plurality of roll forming molds of hole pattern design, and the Φ89 round steel pipe 13 is gradually rolled into the manufacture of the round steel pipe rolling plum blossom pipe 15 of the special-shaped pipe whose cross section is the plum blossom shape The method is characterized in that: firstly manufacture a roll forming die, and manufacture 1# round hole vertical roll 1, 1# round hole flat roll 2, 2# round hole vertical roll for the initial stage of rolling according to the size of Φ89 round steel pipe 13 3. 1# transition hole flat roll 4, 1# transition hole vertical roll 5, 2# transition hole flat roll 6, 2# transition hole vertical roll 7, 3# transition hole flat roll 8, 3# for transition rolling stage Transition hole vertical roll 9, 4# transition hole flat roll 10, 4# transition hole vertical roll 11 and plum blossom hole finished flat roll 12 used in the rolling stage...
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The invention relates to a manufacturing method of round steel pipe rolling plum blossom pipe, which is characterized in that it includes 1# round hole vertical roll, 1# round hole flat roll and 2# round hole vertical roll at the beginning stage of manufacturing rolling, and the transitional rolling stage 1# transition hole flat roller, 1# transition hole vertical roller, 2# transition hole flat roller, 2# transition hole vertical roller, 3# transition hole flat roller, 3# transition hole vertical roller, 3# transition hole flat roller, 4# transition hole flat roll, 4# transition hole vertical roll and the roll forming mold of the plum blossom hole finished flat roll in the rolling stage of the plum blossom hole finished product; First, install the above-mentioned roll forming dies on the corresponding rolling mills, and finally, the round steel pipe to be processed is rolled and formed into a plum-shaped cross-section plum-blossom pipe, which is put into storage after passing the inspection; the present invention not only has a reasonable design , compact structure, and has the advantages of high production efficiency, good quality, low labor intensity, safe operation and very convenient use.
Description
technical field [0001] The invention belongs to roll forming equipment for special-shaped steel pipes. Specifically, a round steel pipe is rolled into a plum blossom pipe by gradually rolling a round steel pipe into a special-shaped pipe with a quincunx-shaped cross section through a plurality of roll-type forming dies with pass design. Manufacturing method. Background technique [0002] At present, the method of turning round steel pipes into cross-sections is a quincunx-shaped special-shaped pipe method, which is widely used in hydraulic push-type off-line manufacturing of steel pipes through mandrels. It has the following disadvantages and deficiencies: [0003] 1. The production efficiency is not high, and the product quality is low; there is a certain length of waste pipe at the end of the hydraulically pushed steel pipe, which reduces the yield. The manufacturing cost of the mandrel in the pipe is high, and it can only be produced by a single piece, and the production ...
Claims
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IPC IPC(8): B21D15/02
Inventor 高国鸿魏立东彰森
Owner DALIAN SAGE GROUP