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| No.11851901
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Information Name: | Spiral steel pipe manufacturer in Guangdong |
Published: | 2014-11-29 |
Validity: | 0 |
Specifications: | 219 * 6273 * 8325 * 10 426 529 * 6630 * 5720 * 6820 * 7920 * 81 020 * 101 120 * 121 220 * 141 320 * 161 420 * 181 520 * 20 |
Quantity: | 1200.00 |
Price Description: | |
Detailed Product Description: | Six Liu Bao Tel: 18033242424 spiral weld pipe will strip processing unit into the pipe, the multi-channel roll rolling, gradually rolled steel, formed with an opening gap of circular tube, squeeze rollers adjust reduction so weld gap control in 1 ~ 3mm, and weld the ends flush. 1. If the gap is too large, resulting in reduction of the proximity effect, lack of eddy heat weld together indirectly caused by poor grain unfused or cracking. 2. If the gap is too small, causing the proximity effect increases, excessive heat welding, weld cause burning; or weld extruded to form a pit after rolling, affecting the quality of the weld surface. After the two edges of the tube is heated to soldering temperature, in the squeeze roll pressing, to form a common mutual penetration of the metal grains, crystals, and ultimately form a strong weld. Spiral steel pipe if the pressing force is too small, the formation of crystals on the small number of joint, the weld metal strength is reduced, the force generated after cracking; if the pressing force is too large, will make a molten state is extruded weld metal, not only reduces the weld strength, and will generate a lot of internal and external burrs, and even cause defects such as welding seam ride. |
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Copyright © GuangDong ICP No. 10089450, Foshan Shunde Langze Steel Co., Ltd. All rights reserved.
Technical support: ShenZhen AllWays Technology Development Co., Ltd.
AllSources Network's Disclaimer: The legitimacy of the enterprise information does not undertake any guarantee responsibility
You are the 27026 visitor
Copyright © GuangDong ICP No. 10089450, Foshan Shunde Langze Steel Co., Ltd. All rights reserved.
Technical support: ShenZhen AllWays Technology Development Co., Ltd.
AllSources Network's Disclaimer: The legitimacy of the enterprise information does not undertake any guarantee responsibility