|Rectangular tube||Square Tube||Elliptical Tube|
Product Process Feature
(1) The coil plate is made using a four-roller hydraulic machine with hydraulic front and rear brackets. Because the hydraulic bracket can make the long steel plate roll type, with the coil arc holding up, without the crane, gravity deformation is small, tile roll made of good quality.
(2) Galvanized Steel Strip The whole production and transportation group welding process from semi-circle plates made of steel plate to pipe section between installations is in vertical state. It is only lifted in the steel pipe section to the entrance of the drainage channel, ready to enter the hole for installation. Only flip over 90° on the flip platform. This reduces the deformation of the profiled pipe during transportation.
(3) tile, pipe joints, pipe sections are used 3-point balance beam vertical lifting.
(4) The welding preheater uses liquefied petroleum gas burners to directly preheat the weld with flame.
(5) rely on the mold as a thin strip, with a magnetic press along the line set pressure relief set to guide the semi-automatic cutting machine to go, this feeding method can not only meet the accuracy requirements, but also economical and practical.
(6) Zinc-plated steel pipe stiffening rings are made by welding 10 or 9 arc plates per circle. First, a semi-ring is formed by pulling 5 or 4 arc plates on the stiffening ring production platform, and then welded on the steel pipe. Into the ring. With U-shaped accessories spot welding on the wall of the profiled pipe, the jacks are used to press the stiffening ring against the steel pipe.
(7) In addition to the derusting and painting of the inner wall of the steel pipe, other work is performed in the open air.
(8) Non-destructive testing of special-shaped pipes is carried out at various production stations. X-ray inspections are conducted mainly when no one is working at night.
Product Testing Center
Our company has established a full-featured "experimental test center".To ensure good quality of the products and make our company more comprehensive and reliable in product test and new product development,we will carry out comprehensive test including chemical elements,mechanical property,surface characteristic and limit experiment.
Production Process Flow Chart
The process of steel pipe production is as below.First,we should uncoiling the galvanized steel strip,then carry out cutting& butt welding,then the galvanized steel strip enter the storage box,the machine will make it forming,then welding into steel pipe,then do zinc supplement in welded seam,then water cooling.The square tube should be reforming,then sizing&straightening,then cutting into required length,then marking,then passivation and oiling to prevent the pipe from rusting.Finally,we will packing the pipe and taging,then weight checking and trucking.
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