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The EGW welding used by the tank welding machine is gas-electric vertical welding, which is a gas-shielded arc welding method developed from ordinary gas-shielded gas welding and electroslag welding. The advantages are high productivity and low cost. The main difference with narrow gap welding is that the weld is formed in one pass, rather than multi-pass multi-layer welding.
What are the technical features of tank welding machine?
What is the development trend of tank welding machine?
What is the operation method of tank welding machine?
How to operate tank welding machine?
(1) Left welding method (right→left): small residual height, large width and small splash, which is easy to observe the welding seam, the welding process is stable, the gas shielding effect is good, but the depth of dissolution is shallow.
(2) Right welding method (left→right): The remaining height is large, the width is small, and the splash is large, which is convenient for observing the molten pool and the depth of the molten metal.
(3) Gun delivery method: zigzag swing.
(4) Flat fillet welding does not swing or swing slightly.
(5) The vertical angle is welded upward, and the triangular gun is used.
(6) Welding torch transition: stay on both sides of the molten pool and transition at the front 1/3 of the molten pool.
(7) Gun angle: perpendicular to the weld bead, at an angle of 80-90° along the direction of the gun.
(8) Test plate: the gap is 2.0-2.5mm, and the arc starting point is slightly smaller than the arc ending point. No blunt edge, anti-deformation 1°.
(9) To prevent defects: prevent the angle from melting - burn through the angle. No fusion between layers - pay attention to the gun angle.
What are the technical features of tank welding machine?
The direction of the arc axis of the tank welding machine is perpendicular to the direction of the penetration depth of the weld. During welding, a water-cooled copper slider is used on the front of the weld, and a water-cooled gear row (or pad) is used on the back of the weld. The flux-cored wire is fed into the weldment and in the groove formed by the stopper, the four sides of the molten pool are constrained to realize single-sided welding and double-sided forming at one time. Tank welding machine is a high-efficiency welding technology and equipment.
What is the development trend of tank welding machine?
In recent years, the promotion and application of tank welding machine in engineering has achieved good results, and in-depth research on the fusion welding mechanism of gas-electric vertical welding technology. Tank welding machine has good welding quality, high deposition speed and low comprehensive cost, which provides a broad prospect for the popularization and application of this efficient automatic welding technology and equipment.
With a large number of suppliers, we can choose the right suppliers according to customers' requirements and provide the most cost-effective tank welding machines. For more information, please connect WINCOO ENGINEERING CO., LTD.
The following short description gives the working procedure in outline. It can in certain details be modified when required.
Step 1. The tank bottom – plates are placed on the prepared foundation and welded together.
Step 2. The beams or lattice work of the roof are assembled and finally joined to the upper rim of the shell ring.
Step 3. The jacking equipment is installed in the tank. The plates of the second shell ring (next to the top ring) are positioned outside the first one.
Step 4. The completed part of the tank (roof and top shell ring) is lifted hydraulically to a height at which the plates of the second ring can be moved into place and the roof sheeting can be completed.
Step 5. The plates of the second shell ring are located exactly and welded together to the lower edge of the first ring.
Step 6. The plates of the third shell ring are placed outside the second shell ring.
Step 7. The completed part of the tank (roof the two uppermost shell rings) is lifted.
Step 8. The above cycle of operations is repeated until the last (bottom) shell ring is finished.
Step 9. The entire tank is lowered down to the bottom plate and welded to this.
Step 10. The lifting equipment is dismantled.
The tank construction process needs two kinds of equipment, respectively is the welding machine and the hydraulic jacking system, the welding machine is divided into the horizontal welding machine and the vertical welding machine;the hydraulic jacking system is also divided into senior hydraulic jacking system and simple hydraulic jacking system.(If your tank is bottom to top,you don’t need the hydraulic jacking system.)
1, adjust the operation car to the welding position, if it is reverse driving to the welding position, to cross the welding arc point, and then drive in the welding direction, in order to eliminate the mechanical gap, to avoid the appearance of welding tumor, arc point in the back of the arc pit, in order to avoid welding tumor or lack of meat.
2, set the welding point, point moving "wire feed", "wire back" so that the welding wire gently contact the steel plate, using short circuit contact arc.
3. Select the "welding" position of the walking switch.
4, adjust the welding current, welding voltage (voltage slightly larger, current slightly smaller), welding speed.
5, Select the driving direction, press the corresponding "left" or "right".
6. Open the flux feeding valve, cover the flux in the welding area, move the flux control to open about "recovery", the recovery device works
7. Press the "Start" button of welding to start arc welding and adjust the welding current and welding voltage knob to the required value of welding specification.
8. Observe the position of welding bead and the forming of welding bead, adjust the welding speed and the upper and lower height of welding torch to obtain the best welding effect.
9, during the welding process, pay attention to observe the welding bead, pay attention to the obstacles ahead, welding cable to follow the situation, etc., in order to avoid driving obstacles.
10. Avoid contact with welding gun and wire feeder by hand and metal tools in welding to prevent short road accidents.
The use of pipeline construction equipmentis inevitable in the chemical industry. Pipeline installation is an inevitable part of project construction. However, the installation of pipeline construction equipment requires a certain degree of professionalism and pertinence. Relevant departments need to strengthen industrial management and do a good job of quality control of pipeline installation , Lay a solid foundation for my country's industrial development.
Here is the content list:
l Introduce the basic information of pipeline construction equipment.
l Introduce the safety and environmental protection measures of pipeline construction equipment.
l Introduce the influencing factors in the installation of pipeline construction equipment.
Introduce the basic information of pipeline construction equipment.
l Main material
Q345 steel plate, submerged arc welding wire, electric welding rod, two protection welding wire, CO2 gas, oxygen, acetylene gas, carbon rod.
In accordance with the construction quality management system of pipeline construction equipment, establish quality acceptance standards for finished components of processing plants. Prepare the corresponding technical plan before processing, organize the management and operation personnel involved in processing to carry out training, so that the relevant operators can fundamentally solve the problems existing in the process of processing pipeline construction equipment.
Introduce the safety and environmental protection measures of pipeline construction equipment.
The use of pipeline construction equipment can effectively guarantee the processing quality of steel crane beams, reduce the amount of correction work, reduce production costs, speed up the production rate, and reduce the adverse effects on the welds caused by measures such as the fixed and mandatory correction of semi-finished products during the processing , It has a positive effect on the improvement of the processing technology of steel crane beams.
l Safety measures
Before making steel crane beams, a processing plan or processing technology should be prepared, corresponding safety technical guarantee measures should be formulated, and safety technical clarifications should be made.
① Operators must be familiar with the safety operating procedures of machinery and equipment in the production of pipeline construction equipment and the safety technical operating procedures of this type of work, and operate in strict accordance with the procedures for safe operations.
② The electricity consumption of the production workshop or site must be managed by a full-time electrician and hold a certificate.
③ The electric oxygen welder must obtain the corresponding electric welder qualification certificate.
④ Materials, semi-finished products, and finished products should be slowly and steadily lifted during production, turning over, and lifting.
⑤ Place it to prevent bumping or falling over and crushing people. Lifting personnel must have corresponding qualifications.
⑥ All workers wear protective equipment as required.
⑦ All kinds of pipeline construction equipment must have good grounding and zero connection.
⑧ Establish a full-time safety officer to conduct safety inspections and inspections on the work site, and find unsafe factors, promptly propose and implement corrective measures.
l Environmental protection measures
The installation of pipeline construction equipment is one of the necessary steps in the industrial field, and the installation and construction of pipeline construction equipment is a very important stage in project construction.
Due to the influence of various factors during project construction, there are many problems in the installation of pipeline construction equipment. In order to promote the improvement of industrial pipeline installation quality, certain measures need to be taken to control the pipeline installation quality to ensure the smooth completion of project construction.
① The construction site should be kept clean. All items should be arranged in time and placed in an orderly manner.
② Noise should be controlled during operation, and operation time should be arranged reasonably to reduce the impact on the surrounding environment.
③ The working lights at night should be irradiated into the field, and protective measures should be taken for the welding arc.
④ The oil used in operation machinery shall not be dumped at will to prevent pollution.
⑤ Waste materials, steel materials, welding heads, welding wire heads, etc. left over during operation should be collected separately, treated or recycled in a unified manner.
Introduce the influencing factors in the installation of pipeline construction equipment.
l Bracket installation quality
In the installation of pipeline construction equipment, the installation of the bracket is relatively important, which plays a very good role in the quality of pipeline installation and the normal operation of the equipment. Among them, the installation of the bracket has a certain impact on the overall performance of the pipeline.
For example, the carrying capacity of the scaffold must meet the standard, the sliding surface of the support and the supporting surface have good connection performance, etc. Therefore, the pipeline construction process needs to be carried out according to the engineering construction drawings and pipeline construction equipment installation and construction process specifications to avoid installation Quality has a certain impact.
l Welding quality
Welding in the installation of pipeline construction equipment is also one of the necessary links. The quality of welding affects the overall quality of pipeline installation. Pipe welding can ensure the performance of the undertaking project frame group, thereby ensuring the overall performance of the pipeline. Therefore, precise welding is required in welding, positioning welding position to ensure welding quality, and welding in strict compliance with welding procedures and specifications.
In welding, especially the position of the welding seam, the welding process requirements of the welding workers are very high. The relevant personnel are required to do a good job in welding quality control in this link, and to formulate specific solutions for possible situations to avoid The overall performance of pipeline construction equipment has a certain impact.
l Pipeline anticorrosion
The particularity of the use environment of pipeline construction equipment and the particularity of the use location require the pipeline to have certain anti-corrosion performance. In the pipeline anti-corrosion, the anti-corrosion material will choose paint, and the economical and reasonable pipeline paint can be selected for pipeline anti-corrosion in the process of use.
To reduce the risk of pipeline construction equipment being corroded, paint itself is a corrosion-resistant substance, which is an industrial raw material and anti-rust material for construction. Applying a layer of paint on the surface of the pipeline can extend the service life of the pipeline.
Steelmax S14 Metal Cutting Saw; 15A, 120/230V, 1 more Wilton 21500 746 Blue Mechanics Vise; 6 Inch Jaw more
Automatic Pipe Roller Welding Machine
3. Required welding width:16mm. 4. Automatic pipe roller welding machine is equipped with adjustable center support rotator. Payload can be 1500KG. The adjustable center rotator is guided by a guide column, which adjusts its height and can be locked. Three. Automatic Pipe Roller Welding Machine Features: 1.
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