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首页 >> 新闻中心 >> Analysis of API Standard Spiral welded pipe Testing System
Analysis of API Standard Spiral welded pipe Testing System
来源: | 作者:xindatong | 发布时间: 2017-04-26 | 526 次浏览 | 分享到:
In order to meet the demand of high-grade steel and high standard steel pipe in the West-to-East Gas Pipeline Project, on the basis of analyzing the characteristics of the two milling edges of the current world pipe industry, it is decided to select two milling machines, Milling transformation program. Through the transformation of the original Spiral welded pipe api dismantling machine frame, to increase the strip position detection digital display system, the transformation of delivery of hydraulic systems, and developed a domestic milling machine and large milling cutter, so that the original spiral welded pipe unit with milling Side of the production capacity. After the transformation of the unit has produced large diameter steel pipe 9870t, fully meet the standard requirements of West-East Gas Pipeline.
Weld pipe unit milling edge instead of cutting edge, the strip delivery accuracy and milling machine milling volume is inseparable. If the strip delivery accuracy is low, the strip deviation to increase the amount of waste to remove the width will increase, not only reduces the spiral pipe equipment pipe production rate, and must increase the investment to improve the milling machine milling capacity, but lost The milling edge instead of the meaning of cutting edge, so in order to improve the milling edge instead of cutting the edge of the economic benefits, we must further improve the accuracy of steel delivery. Their Kashima production line, strip delivery accuracy of ± 5 mm, rough milling 600 type milling machine (maximum milling volume 7.5mln) set the amount of work milling 4 mill, fine milling type 400 milling machine (maximum milling volume 4.5mm) set the amount of work milling 3 iTlln.
Large-diameter spiral welded pipe equipment for the front pendulum short unit, the delivery control of such units, the key is the unwinding machine and delivery machine, unwinding machine frame clamping coil moving control strip delivery position, through the two sides of the conveyor Pressure difference P, a P: spiral pipe equipment size adjustment, you can control the direction of steel delivery, and then assisted in the induction of the vertical roller, you can form a pipe unit delivery control system. Specific transformation program is as follows:
1, increase the strip delivery position detection digital display system;
2, transformation and dismantling machine frame;
3, the transformation of the delivery system hydraulic system, to achieve delivery roller on both sides of the cylinder pressure differential adjustable;
4, to strengthen the existing guide roller.
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