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About the influence of the defects of the welded pipe blank of the high frequency welded pipe machine on the quality of the welded pipe (5)
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- Release time：2023-07-10 11:30
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【概要描述】If the high frequency welded pipe machine refers to the chemical composition and mechanical properties of welded tube blanks that require certain inspection methods to be known as invisible defects; then, those defects that can be seen only by vision are called tube blanks. Overt defect.
About the influence of the defects of the welded pipe blank of the high frequency welded pipe machine on the quality of the welded pipe (5)
【概要描述】If the high frequency welded pipe machine refers to the chemical composition and mechanical properties of welded tube blanks that require certain inspection methods to be known as invisible defects; then, those defects that can be seen only by vision are called tube blanks. Overt defect.
- Sort：Information
- Auth:
- Source:
- Release time：2023-07-10 11:30
- Pvs：
Detail
If the high frequency welded pipe machine refers to the chemical composition and mechanical properties of welded tube blanks that require certain inspection methods to be known as invisible defects; then, those defects that can be seen only by vision are called tube blanks. Overt defect.
The dominant defects of the welded tube blank of the high frequency welded pipe machine generally include cracked edges, broken edges, sawtooth, pitting, scratches, roll marks, dark spots, edge burrs, sickle bends, wrinkles, waves, edge warping, and points. Layers, warped skins, pinholes, sticky rolls, soft spots, rust, oxide layers, towers, loose rolls, etc. Let me introduce you to the causes of cracked edges and the effect of cracked edge billets on welded pipes.
Causes of burrs and edge warping:
(1) The slitting blade of slitting is not sharp.
(2) The precision of the slitter knife shaft is poor, or there are impurities on the spacer plane, which causes the slitting knife plane to swing on the knife shaft, which affects the side clearance and produces periodic burrs on the edge of the tube blank.
(3) The gap between the upper and lower edges of the slitting blade is too large.
The effect of burrs and edge warpage on the quality of welded pipes:
(1)Slight tube blank burrs and edge warping have little effect on thick-walled tubes and standard-walled tubes: for some tubes that require smaller internal burrs and extremely small tubes, you can also reverse the tube blank The feeding method achieves the purpose.
(2) When the edge is warped severely, a "corner joint" will be formed, that is, the outer edge corner joint shown in Figure A will appear when the A side is rolled on the outside, and the outer edge corner joint shown in Figure A will appear when the A side is rolled to the inside. The inner edge of the corner joint, the two edge butt forms are undesirable for the welding process.
(3) The external burrs of thin-walled tubes are difficult to remove. Tube blanks with large edge burrs and warped edges should be avoided as much as possible in the production of thin-walled tubes.
About the high frequency welded pipe machine welded tube defects (5) introduction of burrs and edge warping, and the impact of burrs and edge warping on the quality of welded pipes, I hope it can help you.
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Time of issue : 2025-01-11
1.Model: The specific model will vary depending on the brand.
2.Scraping width: Maximum scraping width, usually between 600-3000mm.
3.Scraping length: Maximum scraping length, usually between 2000-8000mm.
4.Table size: according to the specifications of the machine.
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6.Motor power: usually ranging from a few kilowatts to tens of kilowatts.
7.Number of tool holders: The number of tool holders of different models may be different.
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10.Accuracy: Most scraping and rolling machine tools have high processing accuracy.
When buying used equipment, it is very important to understand the parameters of the specific model and the use of the equipment in detail. It is best to contact the seller, ask for detailed technical specifications and use records of the equipment, and carry out on-site inspection and testing.
For more information, please pay attention to the website of Jinyujie Mechanical and Electrical Used Pipe Mill Supplier：www.usedpipemill.com
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1.Model: The specific model will vary depending on the brand.
2.Scraping width: Maximum scraping width, usually between 600-3000mm.
3.Scraping length: Maximum scraping length, usually between 2000-8000mm.
4.Table size: according to the specifications of the machine.
5.Spindle speed: usually between hundreds to thousands of RPM, the specific value depends on the machine tool model.
6.Motor power: usually ranging from a few kilowatts to tens of kilowatts.
7.Number of tool holders: The number of tool holders of different models may be different.
8.Control system: Old machine tools may be equipped with traditional manual control systems, and may also be upgraded to numerical control systems.
9.Machine weight: several tons to dozens of tons.
10.Accuracy: Most scraping and rolling machine tools have high processing accuracy.
When buying used equipment, it is very important to understand the parameters of the specific model and the use of the equipment in detail. It is best to contact the seller, ask for detailed technical specifications and use records of the equipment, and carry out on-site inspection and testing.
For more information, please pay attention to the website of Jinyujie Mechanical and Electrical Used Pipe Mill Supplier：www.usedpipemill.com
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Time of issue : 2025-01-10
1.Specifications:
Pipe diameter range: Pipe diameter suitable for processing.
Wall thickness range: Wall thickness range of the pipe.
Processing speed: annealing furnace processing speed of stainless steel pipe.
2.Temperature control:
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Heating method: electric heating, gas heating or other heating method.
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In order to ensure that the right used equipment is selected, it is recommended to actually look at the condition of the equipment, understand the age of the equipment and maintenance records, and it is best to consult a professional evaluation.
For more information, please pay attention to the website of Jinyujie Mechanical and Electrical Used Pipe Mill Supplier：www.usedpipemill.com
JinYuJie-Used Pipe Mills Supplier（Please click the link→) :second-hand pipe mill
1.Specifications:
Pipe diameter range: Pipe diameter suitable for processing.
Wall thickness range: Wall thickness range of the pipe.
Processing speed: annealing furnace processing speed of stainless steel pipe.
2.Temperature control:
Maximum temperature: The maximum operating temperature is usually 1000°C to 1200°C.
Heating method: electric heating, gas heating or other heating method.
Temperature uniformity: Ensure uniform temperature distribution in all areas of the furnace.
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Air cooling: Use air for rapid cooling.
Water cooling: Use water to improve cooling efficiency.
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Type of protective gas: Commonly used hydrogen, nitrogen or ammonia decomposition gas.
Gas flow and pressure: Protect gas flow and pressure control.
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Power: Total power of the device.
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Control mode: manual control, CNC or PLC control system.
In order to ensure that the right used equipment is selected, it is recommended to actually look at the condition of the equipment, understand the age of the equipment and maintenance records, and it is best to consult a professional evaluation.
For more information, please pay attention to the website of Jinyujie Mechanical and Electrical Used Pipe Mill Supplier：www.usedpipemill.com
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1.Equipment status: Check the overall condition of the equipment in detail, including whether there is wear, damage, rust and other conditions. Ask the seller about the age and maintenance history of the equipment.
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Before making a final decision, consult and compare in many aspects to ensure that the second-hand automatic non-changing roll cold bending unit purchased can bring benefits to your production.
For more information, please pay attention to the website of Jinyujie Mechanical and Electrical Used Pipe Mill Supplier：www.usedpipemill.com
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1.Equipment status: Check the overall condition of the equipment in detail, including whether there is wear, damage, rust and other conditions. Ask the seller about the age and maintenance history of the equipment.
2.Manufacturers and brands: Choose equipment from well-known brands or trusted manufacturers, which can ensure the quality and performance of the equipment. Look online for word-of-mouth and user reviews of the brand.
3.Model and parameters: Confirm whether the specific model and technical parameters of the required unit meet your production needs, such as the type, thickness and width of processing materials, and the molding speed of the equipment.
4.Functional test: try to carry out field tests before purchase to check the operation of the equipment to ensure the normal operation of all functions, including the degree of automation, roll change function, production efficiency, etc.
5.After-sales service: Understand the seller's after-sales service, whether to provide installation and commissioning, technical guidance and maintenance services. This can ensure that the problems during the operation of the equipment can be solved in time.
6.Reasonable price: Compare the price of similar equipment on the market to ensure that the purchase of equipment is reasonable. If the price is significantly lower than the market price, it is necessary to carefully judge the actual condition of the equipment.
7.Contracts and procedures: Ensure that the purchase procedures of equipment are complete, sign a formal purchase and sales contract, clarify the rights and obligations of both parties, and ensure that the equipment transfer procedures are legal and compliant.
Before making a final decision, consult and compare in many aspects to ensure that the second-hand automatic non-changing roll cold bending unit purchased can bring benefits to your production.
For more information, please pay attention to the website of Jinyujie Mechanical and Electrical Used Pipe Mill Supplier：www.usedpipemill.com
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By considering the above factors, you can better choose the second-hand CNC steel plate cutting machine that meets your needs.
For more information, please pay attention to the website of Jinyujie Mechanical and Electrical Used Pipe Mill Supplier：www.usedpipemill.com
JinYuJie-Used Pipe Mills Supplier（Please click the link→) :second-hand pipe mill
1.Equipment condition: To check the overall condition of the equipment, including the mechanical part, the electrical part and the numerical control system, to ensure that it is operating normally, without obvious damage or wear.
2.Brand and model: Select well-known brands and mature models of equipment to ensure its quality and reliability. In addition, some brands may have better after-sales service and parts supply.
3.Production year and use time: Understand the production year and use time of the equipment, you can judge its remaining life. In general, devices that last a short time are likely to be more reliable.
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6.Price comparison: Compare the old and new prices of the same type of equipment on the market to ensure that the second-hand equipment purchased is reasonable. At the same time, consider whether further repair or upgrade costs are required.
7.Trial run: If possible, carry out field trial run to ensure that the functions of the equipment work normally. Observe the operating noise, cutting speed, and cutting quality of the equipment.
8.Supplier reputation: Choose suppliers or sellers with good reputation. You can understand the reputation of suppliers by checking customer reviews and consulting friends in the same industry.
9.Transportation and installation: Understand the transportation and installation of the equipment to ensure that it will not be damaged during transportation and can be successfully installed in your production workshop.
10.After-sales service: Ask the seller whether to provide after-sales service, including installation and commissioning, training operators, providing technical support, etc., which is particularly important for used equipment.
By considering the above factors, you can better choose the second-hand CNC steel plate cutting machine that meets your needs.
For more information, please pay attention to the website of Jinyujie Mechanical and Electrical Used Pipe Mill Supplier：www.usedpipemill.com
JinYuJie-Used Pipe Mills Supplier（Please click the link→) :second-hand pipe mill
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Tel: +86-13392281699
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Email: zty@usedpipemill.com
Company address:No. A99, East Lecong Avenue, Lecong Town, Foshan City, Guangdong Province
Wechat: 13392281699
Email: zty@usedpipemill.com
Company address:No. A99, East Lecong Avenue, Lecong Town, Foshan City, Guangdong Province
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