Mobile Helical Pipe Factory With Beveling and Multi-Wire Welding
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Solution Overview
Problem
Current mobile sheet helical pipe factories face limitations in productivity due to restricted welding speed, lack of bevels on sheets, and the use of a single welding wire, which affects fusion quality and efficiency, especially with thicker sheets, and are constrained by the need for external media for coil handling.
Innovation Solution
A mobile factory equipped with a beveler for creating chamfers on steel sheets, allowing for multi-wire welding and an optional coil driver for thicker sheets, along with additional presses and pullers, enabling faster production and complete penetration of welds across various thicknesses without external assistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a single welding wire is used for helical pipe manufacturing, then the device complexity is reduced, but the productivity is limited due to restricted welding speed and fusion quality
Solution Approach 1:
The patent combines multiple welding wires (typically 3-5 wires) into a single welding system that operates simultaneously. This merging of multiple welding elements allows the system to achieve higher productivity through parallel welding operations while maintaining integrated control, resolving the contradiction between increased production speed and device complexity
Solution Approach 2:
The invention transitions from single-point welding to multi-point simultaneous welding by adding the dimension of parallel operation. Multiple wires weld different sections of the helical seam at the same time, effectively multiplying the welding speed without proportionally increasing system complexity through integrated control systems
2Manufacturing precision
If sheets without bevels are used for welding, then the ease of manufacture is improved, but the welding quality and fusion completeness deteriorate, especially for thicker sheets
Solution Approach 1:
The beveling operation is performed in advance on the sheet edges before the welding process. This preliminary action prepares the surfaces to receive the weld metal properly, ensuring complete penetration and fusion quality. By doing the preparation work beforehand, the system achieves high welding precision without adding complexity to the welding operation itself
Solution Approach 2:
The invention changes the geometric parameters of the sheet edge by creating a bevel angle (typically 30-45 degrees). This parameter modification allows the weld to penetrate completely through the sheet thickness, achieving full fusion quality. The bevel geometry transforms the welding interface to accommodate proper metal flow and fusion, resolving the contradiction between welding quality and manufacturing simplicity
3Productivity
If the factory is mounted on a low trailer for mobility, then the ease of operation is improved, but the production speed is restricted due to space constraints and equipment limitations
Solution Approach 1:
The patent employs dynamic positioning systems and adjustable equipment arrangements that allow the mobile factory to optimize its configuration during operation. The system can dynamically adjust equipment positions and operational parameters to maximize production speed within the mobile platform constraints, resolving the contradiction between manufacturing speed and mobility
Solution Approach 2:
The invention changes operational parameters such as welding speed, wire feed rate, and travel speed to optimize production output within the mobile platform's space constraints. By adjusting these parameters, the system achieves high manufacturing speed despite the limited space and equipment capabilities of the mobile installation, maintaining both productivity and ease of operation
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution significantly increases production speed and quality by enabling efficient welding with multiple wires and improved coil handling, allowing for pipes of any length to be produced on-site with enhanced mechanical performance and cost-effectiveness.
Implementation Method 1
a beveler, with a variable angle, which on milling the sides thereof favors the joint/welding of the top
Implementation Method 2
The increase in production capacity is proportional to the amount of wire used, either in the internal or external welding, which can vary from two to five wires per weld
Implementation Method 3
The optional coil driver (4), responsible for the swift placement of the coil in the unwinder (6), is positioned at the front of the trailer (1), raft (2) or container-type structure (3)
Data Source
AI summary
A mobile factory of steel sheet coil helical pipe includes a factory for the production of helical pipes that can be mounted on trailers, rafts, or container-type structures that is distinguished by its high production speed and use of steel sheet coils of up to 1″ possible thanks to the use of an optional coil driver, a beveler and a wire welding system that may contain two, three, four, or five welding wires per pass (internal and external).