Blog
We look forward to working with you,mutual benefit and win-win,create brilliant!
Let's help you
MoreLatest News
12.06
2018
Understand the working conditions and principles of welded pipe rolls
Do you know the working process of welded pipe roll before buying. Today by the welded pipe roll manufacturers to introduce.
12.06
2018
Welding Cracking Solution of Welded Pipe Equipment
Do you know what's going on with the seam of welded pipe equipment? Today, Jiangsu Nanyang Machinery Manufacturing Co., Ltd. will explain it to you.
12.06
2018
Welded pipe unit maintenance focus
Welded pipe unit is widely used and developed rapidly. Today, let us in-depth interpretation of the welded pipe unit.
12.06
2018
Understanding the heat treatment of welded pipe rolls
Do you know the heat treatment of welded pipe roll? Today, the welded pipe roll manufacturer will introduce the treatment method for everyone.
12.06
2018
What problems should be paid attention to when the welded pipe unit produces oil casing?
The control methods of weld groove corrosion include: the use of thermal tension diameter reduction can reduce the sensitivity of groove corrosion; Reducing the S content in steel and controlling the precipitation of inclusions such as MnS and FeS along the weld area can also reduce the sensitivity of weld groove corrosion. In addition, reasonable addition of alloying elements can refine the grain size of the welding base metal and improve the groove corrosion in the weld area.
12.06
2018
What are the temperature control of straight seam welded pipe unit?
The straight seam welded pipe unit sends the strip steel into the welded pipe unit, and after rolling by multiple rollers, the strip steel is gradually rolled up to form a round pipe blank with an opening gap. The pressing amount of the squeezing roller is adjusted to control the weld gap at 1~3mm, and both ends of the welded joint are flush. If the gap is too large, the proximity effect will be reduced, the eddy current heat will be insufficient, and the joint between the weld grains will be poor, resulting in incomplete fusion or cracking.
Contact Us
Tel :+86-514-87736047
Phone :+86-15062802588
E-mail : market@nanyangmill.com
Address : Yangshou industry park,Hanjiang District, Yangzhou City, Jiangsu Province, China
This website already supports IPV4 / IPV6 bidirectional access