Seamless pipe as the name suggests is a pipe without a seam or a weld-joint in contrast to Seam or Welded pipe. In a Seam or Welded pipe, the seam or the weld-joint is the weaker part of the pipe limiting the strength of the pipe to the strength of the weld-joint. Whereas the seamless pipe does not have any such joint and thus has uniform structure & strength all over the pipe body.
Some commonly used models are
Advantage
The seamless pipe can withstand higher pressure, higher temperature, higher mechanical stress & corrosive atmosphere and find wide applications in Oil & Gas.
Applications
Applications in petrochemical, chemical, chemical, chemical fertilizers, electric power, automobiles, bearings, machinery and structures.
API 5L Seamless Steel Pipe ASTM A106/A53 GR.B seamless steel pipe
Standard of carbon seamless steel pipe
Packaging & Delivery
Packaging Details
Plastic caps on both ends, Steel bundle, Woven bag or acc. to customers' request.
Delivery Time
15 days after receiving deposit
Seamless Steel Pipe Seamless Steel Pipe,A53 Gr.B Seamless Pipe,Api5L Seamless Pipe,Astm A106 Gr.B Seamless HEBEI CHENGYUAN PIPE INDUSTRY GROUP CO.,LTD , https://www.hbcytube.com
I. Question: What is the cause of the jitter in the monitor display screen?
Answer: This situation is generally caused by the display refresh rate setting is too low, enter the "Display Properties", click "Settings", select "Advanced", then select "Monitor", adjust the new frequency to 75HZ, determine the exit This can be solved.
Second, the question: Why does the monitor display screen protection or black screen after boot monitoring for some time?
Answer: This situation is caused by the absence of canceled screen protection or improper power management settings. The solution is to exit from the monitoring system to the WINDOWS operating system interface, right-click on the interface, select "Properties", select the screen protection in the tab appears, select (none) to cancel the screen saver. Then click on the settings button in the lower right corner, select "Always open" in the power scheme, the system waits to select "never", close the monitor and select "never", "close the hard disk" where "never", and finally click "OK" can be.
Third, the problem: Digital DVR image shows only the image does not operate the button or the screen is not full of the entire screen What is the reason?
Answer: Under normal circumstances, the display resolution setting does not meet the requirements. Set the desktop resolution to 1024*768, and change the small font to large font.
Fourth, the problem: how should the hard disk video host partition?
Answer: System main hard disk:
(i) Establish primary partition C: (2 to 3GB) operating system application software.
(B) to establish an extended partition (100% of the remaining hard disk)
(C) create a logical partition in the extended partition D: (usually allocated about 4GB, mainly stored application backup and some video data)
(D) create a logical partition in the extended partition E: (remaining hard disk space) (video data)
5. Why does the monitor appear as a screen saver or a black screen when the monitor is turned on for a period of time?
After exiting to the operating system interface, right-click on the interface, select Properties, select Screen Saver in the tab that appears, and select (none) to deactivate the screen saver. Then click the Settings button in the lower right corner, select "Always open" in the power scheme, the system waits to select "never", close the monitor and select "never", close the hard disk and select "never" and then confirm.
Sixth, why no boot?
Make sure the chassis and monitor are properly connected and the power is connected and turned on. In the process of transportation and moving, the body may loosen the internal card accessories. It is best to open the chassis before starting the machine and confirm that the components are plugged in and then turned on. If the main board self-checking is abnormal during startup (normally, the keyboard indicator LED flashes once and the host buzzer emits a “beep†sound), please turn off the power and check whether the CPU board and the video card are fully inserted, and remove the board. Plug in again. If you press the power switch and the CPU fan does not turn and the panel power indicator does not light, check that the power supply is connected properly.
7. What kind of operating system can the hard disk video card work under?
Hard disk video card can be used above Windows/2000, support PNP function.
Eight, why is there a system crash and how can I recover?
If the improper setting of windows or some other software failure causes the system to work abnormally, system crashes will occur. The following methods can be used to recover the system:
First: Windows registry method repair system. For example, if you do not open the monitor or the monitor is connected improperly when you start the system for a certain time, the system cannot be normally accessed when the system restarts. You can use the following steps to repair it.
Restart, hold down the F8 key during startup, select “Command Promptonly†in the Startup Mode selection menu, and after startup, type the following command line: scanreg/restore Select the date the system was last working to restore.
Second: When using the recovery registry can not solve the problem, you can use Ghost to restore the system, provided that you have used the Ghost backup system. Use the method is to start (start with the hard disk or start the boot disk WIN98) to DOS state, run Ghost.exe, follow the prompts to complete the system recovery.
Nine, no image display should be how to do?
Cause one: The graphics card is not compatible. It can be tested with DirectDraw. If the test passes, it is not for this reason.
Cause two: The PCI interface is not in good contact. You can switch to a PCI slot test.
Cause three: If the card is damaged, you can consider changing the card test.
Ten, audio, video card driver installation instructions.
The driver for the video card cannot be installed in more than one. Only check the complete number of drivers in safe mode.
Example: You have 8 cards plugged into the motherboard. You can only install 8 drivers. You should check the number of audio and video card drivers in 'safe mode'. If the video card driver is more than the number of installed video cards, the system sometimes does not work properly.
Note: Four-way real-time cards are equivalent to four separate cards, four drivers need to be installed, and the other audio and video cards install one driver per card! If you find this phenomenon, you should put all video cards in 'safe mode' Remove all the drivers (including other duplicate devices of the system), and then restart the computer.
XI. Why can't the computer find the card?
Cause one: The computer power supply is not ATX power supply. Please use ATX power supply.
Cause two: The computer's PCI slot is damaged. Please change it to a slot test.
Cause 3: The card is damaged. Please change the card test.
Twelve, how to do poor video playback quality?
For our hard disk recorder under the 'normal' compression quality, video playback quality is satisfactory.
But sometimes the phenomenon of 'mosaic' is found to be serious. Especially for moving images, the image becomes blurred. The main reason is that your camera's brightness is too low (do not try to change the brightness of the hard disk recorder to compensate). Adjust the brightness of the camera to compensate. This should pay special attention to the construction of the project.
13. What if the real-time monitored image is not clear?
In the system setting of the digital hard disk recorder, "common camera" or "high-definition camera" can be selected according to the model or definition of the configured camera; at the same time, the brightness, chroma, contrast and saturation of the video can also be adjusted. Value to achieve satisfactory results.
14. What should I do if the program fails to start or fails to initialize?
Cause one: The shortcut is wrong. Unable to hook the application, the shortcut does not start, delete the shortcut and recreate or reinstall the program.
Reason two: There is no installation of DirectX 8.0 or later acceleration software.
Cause 3: The card model has not been correctly identified. Run the Config.exe program to identify the card.
Cause four: The power supply is not ATX power supply or the power supply power is not enough. Switch to a high-power ATX power supply.
Cause five: The board is in poor contact and reinstall the board.
Cause six: The software and card are not compatible, that is, they are not compatible. Contact the product supplier.
Cause seven: There is a bad card and you need to confirm the availability of each card.
Cause 8: The PCI slot is damaged. Replace the slot.
Sameless pipe
What are the hard disk recorder troubleshooting solutions?