Used Pipe Mill Supplier
High frequency welded pipe machine on the impact of welded tube blank defects on the quality of welded tube (11)
- Sort：Information
- Auth:
- Source:
- Release time：2023-07-28 11:30
- Pvs：
【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.
High frequency welded pipe machine on the impact of welded tube blank defects on the quality of welded tube (11)
【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：2023-07-28 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 rust and the impact of rust billets on welded pipes.
Rust
Corrosion refers to the phenomenon that the surface of the tube blank is damaged by the wetness of rainwater, acid, lye and other liquids or air oxidation.
Rust can be divided into slight corrosion and severe corrosion. Slightly rusted tube blanks, gently wipe with 240 grit sandpaper, after blowing off the rust powder, there is no trace on the surface of the tube blanks. After wiping off the severely corroded blank tube with sandpaper, the surface of the blank tube still has corroded dent marks. Corrosion is one of the common defects of tube blanks.
Causes of corrosion:
(1) The tube blank is exposed to the air for a long time, and is oxidized in contact with moisture and oxygen in the air.
(2) Directly corroded by water, acid, alkali and other liquids.
The effect of corrosion on the quality of welded pipe:
(1)Even if it is slightly rusty, after the welded pipe is formed, welded, and rolled by the sizing roll, the surface of the welded pipe will be impressed by the rust powder, which will damage the surface quality of the welded pipe and increase the subsequent surface treatment cost of the welded pipe.
(2)The weld seam strength is low, and the weld seam structure is not dense. The chemical expression of rust powder is mFe203,·nH2O. The rust in the thickness direction of the tube blank will undergo a series of chemical reactions during high-temperature welding to generate CO gas and H2, and stay in the weld during solidification to form pores and structure. loose.
(3) Severe corrosion will thin the pipe wall and reduce the pressure-bearing capacity of the pipe.
Raw materials are critical to product quality, and we must keep the raw materials in check.
Regarding the defects of welded pipe blanks of high frequency welded pipe machine (11), the causes of corrosion and the influence of corrosion on the quality of welded pipes, I hope it can help you.
关键词：
More News
The parameters of the used direct square roll vary depending on the brand, model and usage.
Time of issue : 2025-01-14
1.Roll diameter: The diameter of the roll, usually expressed in millimeters (mm).
2.Roll length: The length of the roll, also expressed in millimeters (mm).
3.Material: roller material, such as high carbon steel, tungsten carbide, etc.
4.Hardness: The hardness of the roll surface, usually expressed by Brinell hardness (HB) or Rockwell hardness (HRC).
5.Rolling force: rolling force per unit area, usually expressed in Newton (N).
6.Speed: The maximum speed of the roll, usually expressed in revolutions per minute (RPM).
7.Bearing capacity: The maximum load that the roll can bear.
8.Service life: the operating life of the roll under standard working conditions.
When buying a used roll, it is recommended to carefully check the quality and wear of the roll and ask about the historical repair and maintenance of the machine to ensure a well-functioning set of equipment. If possible, try to obtain a complete technical data sheet and maintenance records to help you make informed decisions.
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.Roll diameter: The diameter of the roll, usually expressed in millimeters (mm).
2.Roll length: The length of the roll, also expressed in millimeters (mm).
3.Material: roller material, such as high carbon steel, tungsten carbide, etc.
4.Hardness: The hardness of the roll surface, usually expressed by Brinell hardness (HB) or Rockwell hardness (HRC).
5.Rolling force: rolling force per unit area, usually expressed in Newton (N).
6.Speed: The maximum speed of the roll, usually expressed in revolutions per minute (RPM).
7.Bearing capacity: The maximum load that the roll can bear.
8.Service life: the operating life of the roll under standard working conditions.
When buying a used roll, it is recommended to carefully check the quality and wear of the roll and ask about the historical repair and maintenance of the machine to ensure a well-functioning set of equipment. If possible, try to obtain a complete technical data sheet and maintenance records to help you make informed decisions.
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
Parameters of second-hand hydraulic cold drawing machine
Time of issue : 2025-01-13
1.Model: This is the specific model name or number of the device.
2.Maximum drawing force: The maximum drawing capacity of the hydraulic cold drawing machine, usually expressed in tons (T).
3.Table size: The length and width of the table, usually expressed in millimeters (mm) or inches (in).
4.Drawing speed: The working speed of the hydraulic cylinder in the drawing process, usually expressed in millimeters/second (mm/s) or meters/minutes (m/min).
5.Cylinder stroke: The maximum stroke length of the hydraulic cylinder, usually expressed in millimeters (mm).
6.Hydraulic system pressure: The highest working pressure of the hydraulic system, usually expressed in MPa or Bar.
7.Power: The motor power that drives the hydraulic pump, usually expressed in kilowatts (kW).
8.Weight of the whole machine: the total weight of the hydraulic cold drawing machine, usually expressed in tons (T) or kilograms (kg).
9.Overall size: The total overall size of the hydraulic cold drawing machine (length × width × height), usually expressed in millimeters (mm).
10.Control system: Type and model of numerical control system or manual control system.
11.Year of manufacture: The year of the cold drawing mechanism, which helps to understand the service life and wear degree of the machine.
12.Maintenance records: Maintenance and maintenance records of the equipment, which can reflect the status and reliability of the equipment.
When buying a used hydraulic cold draw machine, it is recommended to carefully check the technical parameters, use status and maintenance records of the equipment to ensure that its performance meets your needs, while also taking into account the wear and tear of the equipment and maintenance history.
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.Model: This is the specific model name or number of the device.
2.Maximum drawing force: The maximum drawing capacity of the hydraulic cold drawing machine, usually expressed in tons (T).
3.Table size: The length and width of the table, usually expressed in millimeters (mm) or inches (in).
4.Drawing speed: The working speed of the hydraulic cylinder in the drawing process, usually expressed in millimeters/second (mm/s) or meters/minutes (m/min).
5.Cylinder stroke: The maximum stroke length of the hydraulic cylinder, usually expressed in millimeters (mm).
6.Hydraulic system pressure: The highest working pressure of the hydraulic system, usually expressed in MPa or Bar.
7.Power: The motor power that drives the hydraulic pump, usually expressed in kilowatts (kW).
8.Weight of the whole machine: the total weight of the hydraulic cold drawing machine, usually expressed in tons (T) or kilograms (kg).
9.Overall size: The total overall size of the hydraulic cold drawing machine (length × width × height), usually expressed in millimeters (mm).
10.Control system: Type and model of numerical control system or manual control system.
11.Year of manufacture: The year of the cold drawing mechanism, which helps to understand the service life and wear degree of the machine.
12.Maintenance records: Maintenance and maintenance records of the equipment, which can reflect the status and reliability of the equipment.
When buying a used hydraulic cold draw machine, it is recommended to carefully check the technical parameters, use status and maintenance records of the equipment to ensure that its performance meets your needs, while also taking into account the wear and tear of the equipment and maintenance history.
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
The parameters of the used scraping and rolling machine
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.
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
JinYuJie-Used Pipe Mills Supplier（Please click the link→) :second-hand pipe mill
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
JinYuJie-Used Pipe Mills Supplier（Please click the link→) :second-hand pipe mill
Parameters of used stainless steel pipe on-line bright annealing furnace
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:
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.
3.Cooling method:
Air cooling: Use air for rapid cooling.
Water cooling: Use water to improve cooling efficiency.
4.Atmosphere control:
Type of protective gas: Commonly used hydrogen, nitrogen or ammonia decomposition gas.
Gas flow and pressure: Protect gas flow and pressure control.
5.Electrical parameters:
Voltage: Voltage range required for operation.
Power: Total power of the device.
6.Other parameters:
Furnace size: The specific size of the furnace determines the length and diameter of the pipe that can be processed.
Transportation mode: The transmission mode of the pipe in the furnace, such as chain transmission, roller table transmission, etc.
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
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.
3.Cooling method:
Air cooling: Use air for rapid cooling.
Water cooling: Use water to improve cooling efficiency.
4.Atmosphere control:
Type of protective gas: Commonly used hydrogen, nitrogen or ammonia decomposition gas.
Gas flow and pressure: Protect gas flow and pressure control.
5.Electrical parameters:
Voltage: Voltage range required for operation.
Power: Total power of the device.
6.Other parameters:
Furnace size: The specific size of the furnace determines the length and diameter of the pipe that can be processed.
Transportation mode: The transmission mode of the pipe in the furnace, such as chain transmission, roller table transmission, etc.
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
JinYuJie-Used Pipe Mills Supplier（Please click the link→) :second-hand pipe mill
Contact information
Tel: +86-13392281699
Wechat: 13392281699
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
Recommendation
Online Inquiry
底部留言
描述：
LINK
Category brief summary:
Category brief summary:
Category brief summary:
Category brief summary:
Category brief summary:
Category brief summary:
Category brief summary:
Category brief summary:
Contact Us
Tel (wechat): 13336487288
Wechat：+86 13336487288
WhatsApp:+86 13336487288
Email: zty@usedpipemill.com
Address: No. A99, Lecong Avenue East, Lecong Town, Foshan City, Guangdong Province
