1. Function, Raw and Finished Workpiece: Semi-automatic machines on pipe assembly and welding refers to line of assorted equipment, fulfilling pipe fabrication operation, from original pipes/ elbows/ flanges, to finished workpieces of pipeline sub-assemblies:
Pipeline elbow flange assemblies, fabricated from line of pipe assembly and welding: (Fig.1)
1) Industry: These machines and equipment are widely used in Industries of: Shipbuilding, Vessel and Container Manufacturing, Offshore Platform, Oil and Gas, etc., which is group of indispensable equipment for producing complicated pipeline of various specifications;
2) Way of Machine Application: The machines involved in pipe elbow flange fabrication, can be either composed into a production line for Pipe Complex production, or used as individual equipment. Especially pipe elbow and pipe flange welding machine;
3) Special Design: Considering varied condition and requirement from customer, the equipment in the line: Pipe Beveling Machine/ Machines on pipe elbow flange assembly and welding are usually custom made. We design and produce these machinery based on specific customer demand.
In the sequence of process technology, the corresponding equipment involved:
1. Pipe Beveling Machine:
1) This machine is for the purpose of edge milling, or chamfering, along rim of pipes;
2) The corresponding equipment includes two types: Medium duty and heavy duty;
3) This machine is counterpart of sheet metal steel plate Edge Milling Machine, in the realm of pipe fabrication technology;
2. Pipe Flange Assembly Machine:
The full name of equipment is Pipe Flange Tack Welding Machine: It implements on pipe and flange assembly together, with CO2 gas shielded tack welding for strengthening the assembled part at the same time;
3. Pipe Elbow Assembly Machine:
1) The full name of equipment is Pipe Elbow Tack Welding Machine: It implements on pipe and elbow assembly into an integral part, with CO2 gas shielded tack welding at the same time;
2) Here the 2 types assembly machines on pipe with elbow, and pipe with flange, have similar task and process step as H Beam Assembly and Tack Welding Machine;
4. Pipe Circumferential Seam Welding Machine:
Same as assembly step, this also includes two types of welding:
1) For pipe and elbow fabrication, utilizing SAW (Submerged arc welding);
2) Pipe and flange fabrication, utilizing GMAW (Gas shielded CO2 welding).
1. Flexible Operation Manner: To get the best performance and manufacturing efficiency, in the process of pipe/ elbow/ flange assembly and welding, automatic welding is combined with manual assembly, with the help of fixtures and tools;
2. Layout of machine line group is flexible, based on customer demand and condition;
1) Workpiece Fixture: This group of equipment utilizes series of ingenious designed welding fixtures for fitting pipe/ flange/ elbow, for assisting on fitting up of these raw materials together into finished work parts:
Various special designed welding fixtures adopted, in machine line group on pipe assembly and welding: (Fig.2)
2) All Circumferential Seam Welding: Due to structure of workpiece pipe elbow flange, these machines all belong to circumferential welding machine, in the position of vertical welding and or fillet welding, flat welding, etc.;
3) Welding Mode:
a) SAW Submerged arc welding in pipe elbow welding;
b) GMAW Gas shielded CO2 welding in: Pipe flange assembly; Pipe elbow assembly; Pipe flange welding.
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