丰满肥妇bbwbbwbbwbbw,日本丰满熟妇videossex一,五月综合激情婷婷六月色窝,japanese护士高潮,真人一进一出120秒试看,久久99九九精品久久久久蜜桃,欧美伊人久久大香线蕉综合,99久久精品美女高潮喷水
TEL:+86-183-6006-7777
       +86-188-0063-3336

WELCOME TO JIANGSU HUAZHENG PIPELINE TECHNOLOGY CO., LTD!

ABOUT | PRODUCT | NEWS | CONTACT |

COMMITTED TO CREATING VARIOUS DRAINAGE PIPE MATERIAL

PROFESSIONAL SUPPLIER OF URBAN PIPELINE TRANSMISSION SYSTEM

NEWS
CONTACT US
Jiangsu Huazheng Pipeline Technology Co., Ltd
person: Manager Zhou

Mobile: +86-1836-006-7777

            +86-188-0063-3336

Tel: +86-0527-84550877
Web: www.jialism.cn
Add: No.23 Kegong Road,Economic Development Zone, Sucheng District, Suqian city, Jiangsu Province, China


Analysis of Connection Method of Steel Strip Pipe
2019-1-8
source:unknown
clicks:  7273        作者:未知
  • There are several ways to connect steel strip and pipe:
    Hot melt extrusion welding, electric melt tape connection, heat shrinkable pipe (belt) connection and clamp connection can be used for the connection of_spiral ports. When connecting, the spiral ports of the pipe should be used to minimize the gap.
    _1. Hot-melt extrusion welding connection should be heated by special extrusion welding tools and extrusion welding rods to melt the adjacent pipe ends into a whole polyethylene material, which is a rigid connection method.
    _2. The connection of the electric melt Belt should be made by heating the polyethylene layer embedded in the inner surface of the electric melt belt to melt the polyethylene layer between the electric melt belt and the pipe trough into a whole, which is a rigid connection method.
    _3. The connection of heat-shrinkable tube (belt) should be heated by flame to make the hot melt adhesive on the inner surface of the shrinkable tube (belt) adhere to the outer surface of the tube; the heat-shrinkable tube (belt) forms a constant wrapping force after cooling and solidification, which belongs to the rigid connection method.
    _4. The clamp connection should be bolted to fasten two semi-circular outer sleeves, so that the adjacent pipe ends can be tightened, and the rubber plug between sleeves and pipe walls can meet the sealing requirements, which is a rigid connection method.
    Attention: The above connection methods can be combined to meet the design requirements. When rigid connection is adopted in pipeline, measures such as timely soil covering should be taken to reduce the longitudinal shrinkage of pipeline.
    Measures should be taken to prevent pipeline from floating during construction in rainy season. When the bubbles are found after the installation of the pipeline without covering the soil, the elevation of the center and bottom of the pipeline should be re-measured and inspected. If displacement, floating, drawing and other phenomena are found, they should be handled in time.

Address: No.23 Kegong Road,Economic Development Zone, Sucheng District, Suqian city, Jiangsu Province, China  tel: +86-1836-006-7777/+86-188-0063-3336/+86-0527-84550877 Fax: +86-0527-84550877

All Rights Reserved: Jiangsu Huazheng Pipe Technology Co., Ltd. Su ICP Prepared: Su ICP Prepared 16060068 Technical Support: Suqian Webbo

主站蜘蛛池模板: 欧美第一黄网免费网站| 女人18毛片a级毛片免费视频| 欧美熟妇性xxxx欧美熟人多毛| 亚洲色欲色欲综合网站 | 日本欧美一区二区三区乱码| 公与淑婷厨房猛烈进出视频| 孕交videosgratis孕妇性欧美 | 国产乱人伦av麻豆网| 996热re视频精品视频这里| 高潮毛片无遮挡高清视频播放| 欧美激情 亚洲 在线| 午夜性影院在线观看视频播放| 久久久久国产精品人妻aⅴ免费 | 自偷自拍亚洲综合精品第一页| 97人人模人人爽人人少妇| 国产熟女乱子视频正在播放| 无码人妻aⅴ一区二区三区有奶水| 精品国产一区二区三区香蕉| 狂躁女人双腿流白色液体| 免费看撕开奶罩揉吮奶头视频| 最新亚洲人成无码网www电影| 国产精品亚洲一区二区三区| 日韩欧美国产v一区二区三区| 亚洲天堂男人影院| 日本妇人成熟免费中文字幕| 在线观看mv免费视频网站| japanesevideos中国少妇| 亚洲欧美中文字幕5发布| 性一交一乱一伦一色一情丿按摩| 欧美贵妇xxxxxbbbb| 综合一区无套内射中文字幕| 精国产品一区二区三区a片| 久久亚洲av永久无码精品| 一二三四社区在线中文视频| 最新版天堂资源中文官网| 欧美日韩国产精品自在自线| 亚洲日韩av一区二区三区四区| 日韩av一中美av一中文字慕| 日韩综合夜夜香内射| 少妇无力反抗慢慢张开双腿| 野花高清在线观看免费全集7|