CN203099157U - Spiral corrugated steel tube provided with turnup flanges at two ends - Google Patents
Spiral corrugated steel tube provided with turnup flanges at two ends Download PDFInfo
- Publication number
- CN203099157U CN203099157U CN 201320017856 CN201320017856U CN203099157U CN 203099157 U CN203099157 U CN 203099157U CN 201320017856 CN201320017856 CN 201320017856 CN 201320017856 U CN201320017856 U CN 201320017856U CN 203099157 U CN203099157 U CN 203099157U
- Authority
- CN
- China
- Prior art keywords
- flange
- corrugated steel
- steel tube
- flanges
- spiral corrugated
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Flanged Joints, Insulating Joints, And Other Joints (AREA)
Abstract
Provided is a spiral corrugated steel tube provided with turnup flanges at two ends. A spiral corrugated steel tube with externally-welded flanges has the defects that a hot dip galvanizing coating is damaged when the flanges are welded so as to reduce corrosion resistance of the tube. The spiral corrugated steel tube (1) is of a tube body structure, 90-degree flat turnups (2) are arranged at ends of two sides of the tube, and holes (3) are punched in the width ranges of the turnups. In manufacturing, the flat turnups are mechanically rolled and extended, and the hot dip galvanizing coating is not damaged. In connection, the spiral corrugated steel tube is convenient to operate and good in location effect.
Description
Technical field:
The utility model relates to the pipe part technical field, particularly relates to the helical corrugation steel pipe that a kind of two ends has the flange flange, and this helical corrugation steel pipe welded flange assembly in addition can realize that the flange of two pipes connects.
Background technique:
The helical corrugation steel pipe is that employing hot galvanizing steel band is that material processes on the tubulation apparatus of special use, the inside and outside tube wall of pipe presents the helical corrugation shape, in pipeline construction, being connected with a kind of flange between the pipe of helical corrugation steel pipe and the pipe connects, this flange is to insert the helical corrugation steel pipe and be close to the helical corrugation steel pipe that the external welding flange is made in the inner tube wall welding after being rolled into the circle punching with angle steel, the connection of pipe is finished in the involutory back of two pipes during use with the bolton flange, the deficiency of the helical corrugation steel pipe of this external welding flange is, destroy hot galvanized layer during welded flange, caused the decay resistance of pipe to reduce.
Summary of the invention:
The purpose of this utility model provides the helical corrugation steel pipe that a kind of two ends has the flange flange, and this helical corrugation steel pipe welded flange assembly in addition can realize that the flange of two pipes connects.
Above-mentioned purpose realizes by following technological scheme:
A kind of two ends has the helical corrugation steel pipe of flange flange, and its structure is that body is the helical corrugation steel pipe, and 90 degree smooth flange in pipe termination, both sides punches in the flange width.Its manufacture method is: at first, the helical corrugation steel pipe for the treatment of flange is stuck on the flanger fixed tray, pipe end stretches out the certain flange length of fixed tray; Secondly, start flanger, progressively lean the roll extrusion extension through roller set and realize the smooth flange of 90 degree; Once more, on flanger, finish punching.
Beneficial effect:
The utility model is handled the smooth flange punching of helical corrugation steel pipe two ends 90 degree, make the helical corrugation steel pipe that two ends has the flange flange, compare with the helical corrugation steel pipe of external welding flange, the smooth flange of machinery roll-in extension during making, do not destroy hot galvanized layer, simple to operation during connection, good positioning effect.
Description of drawings:
Accompanying drawing 1 is a helical corrugation steel-pipe construction sectional drawing.
Accompanying drawing 2 is helical corrugation steel-pipe construction sectional drawings that a kind of two ends has the flange flange.
Schematic representation when accompanying drawing 3 is two pipe connections.
Embodiment:
A kind of two ends has the helical corrugation steel pipe of flange flange, and its structure is that body is a helical corrugation steel pipe 1, and 90 degree smooth flange 2 in pipe termination, both sides punches 3 in the flange width.The utility model welded flange assembly in addition can realize that the flange of two pipes connects.
Claims (1)
1. a two ends has the helical corrugation steel pipe of flange flange, and it is characterized in that: body is helical corrugation tube wall (1), pipe termination, both sides 90 degree smooth flange (2), punching (3) in the flange width.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320017856 CN203099157U (en) | 2013-01-14 | 2013-01-14 | Spiral corrugated steel tube provided with turnup flanges at two ends |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320017856 CN203099157U (en) | 2013-01-14 | 2013-01-14 | Spiral corrugated steel tube provided with turnup flanges at two ends |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203099157U true CN203099157U (en) | 2013-07-31 |
Family
ID=48850561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320017856 Expired - Fee Related CN203099157U (en) | 2013-01-14 | 2013-01-14 | Spiral corrugated steel tube provided with turnup flanges at two ends |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203099157U (en) |
-
2013
- 2013-01-14 CN CN 201320017856 patent/CN203099157U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Chen Lijuan Document name: Patent termination notice |
|
| DD01 | Delivery of document by public notice | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130731 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |