Steel pipe preheating device and its application, and a steel pipe forming method
A technology of preheating device and steel pipe, applied in the field of steel pipe preheating device, can solve the problem of mismatch between heating and spinning rhythm, and achieve the effects of easy control, fast heating and lower production cost
Active Publication Date: 2016-08-24
SINOMA SCI & TECHSUZHOU
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Problems solved by technology
[0003] The purpose of the present invention is to solve the technical problem of mismatch between heating and spinning beats in the hot spinning process of thick-walled steel pipes in the prior art, and propose a steel pipe preheating device and its application, and a steel pipe forming method
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Embodiment Construction
[0031] The invention provides a steel pipe preheating device and its application, and a steel pipe forming method, which reduce production capacity consumption and improve work efficiency.
[0032] Such as figure 1 and figure 2 As shown in the steel pipe preheating device, the steel pipe is loaded on the material conveying platform 1, and the material conveying platform 1 is arranged at the furnace inlet end of the hot spinning intermediate frequency heating furnace. The movable frame 3 is provided with a fixed movable cylinder 31 and a movable movable frame 4 arranged on the movable frame 3, and the telescopic end of the movable cylinder 31 is driven to connect the movable frame 4, and the movable frame 4 is linearly mounted on the movable frame 3. Sliding, and the sliding direction is perpendicular to the axial direction of the steel pipe 2. The mobile frame 4 is provided with a fixed mobile cylinder 41 and a movable base 5. The telescopic end of the mobile cylinder 41 is ...
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Abstract
The invention discloses a steel pipe preheating device and the application thereof and a steel pipe forming method. A steel pipe is loaded on a material conveying table; the material conveying table is arranged at a furnace inlet end of a hot spinning medium-frequency heating furnace; the steel pipe preheating device comprises a flexible frame and a heating gun; the heating gun is driven by the flexible frame to extend into an inner chamber of the steel pope and accordingly the heating is started or the heating gun is driven by a mobile frame and a mobile base station to be withdrawn from the inner chamber of the steel pipe after the heating is stopped; the preheating device is mainly applied to the steep pipe, wherein the wall thickness of the steel pipe exceeds 12mm; the steel pipe forming method comprises the steps of movement, preheating, withdrawing, hot spinning and cooling. According to the steel pipe preheating device, a preorder preheating device is added to the steel pipe, wherein the wall thickness of the steel pipe is more than 12 mm, and accordingly the heating time is matched with the hot spinning time when the steel pipe enters the hot spinning step and accordingly the production efficiency is improved, the waste of the production capacity is reduced, and the production cost is reduced.
Description
technical field [0001] The invention relates to a steel pipe preheating device, in particular to a steel pipe preheating device and its application, and a steel pipe forming method. Background technique [0002] Steel cylinder hot spinning needs to heat the steel pipe above the forging temperature of the steel. Generally, the steel needs to be heated to about 1100°C. Steel pipes with a wall thickness of less than 12mm can be heated in an intermediate frequency heating furnace within 3 minutes to meet the requirements. Steel pipes with a wall thickness of more than 12mm require a longer heating time, and the hot spinning operation time is generally completed within 3 minutes. If the heating time of the steel pipe exceeding 12mm exceeds the hot spinning time, there will be a mismatch between the spinning and the steel pipe heating cycle during production, which will easily lead to unqualified product quality, and the heating and hot spinning time is too long, resulting in wast...
Claims
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IPC IPC(8): B21D22/14B21D37/16F23D14/34F23D14/46
CPCB21D22/14B21D37/16F23D14/34F23D14/46
Inventor 王骏匡欢王艳辉汪龙
Owner SINOMA SCI & TECHSUZHOU