Longitudinal and transverse groove hot-melt anticorrosive coating steel pipe
Technical Field
The utility model belongs to the technical field of the pipeline technique and specifically relates to a steel pipe that relates to hot melt anticorrosive coating.
Background
The steel pipe of the hot-melting anticorrosive layer comprises a circular steel pipe body outside, an inner cavity is formed in the steel pipe body, and the steel pipe is generally applied to urban water delivery; in order to prevent the steel pipe from being corroded, the technical scheme is as follows: the outer side of the steel pipe body is respectively coated with a hot-melt anticorrosive coating, and the anticorrosive coating is coated on the outer side of the steel pipe body to form an outer hot-melt anticorrosive coating. The hot melt anticorrosive coating is coated by hot melt adhesive particles under the condition of heating the steel pipe body, the hot melt adhesive particles are scattered on the surface of the steel pipe under the condition of heating the steel pipe, the hot melt adhesive particles are molten, and the hot melt adhesive is solidified and forms a hot melt anticorrosive coating on the side surface of the steel pipe body along with the cooling of the steel pipe.
In the prior art, the outer side surface of the steel pipe body is a smooth plane, so that the defect that the hot-melt anticorrosive coating is not firmly connected with the side surface of the steel pipe exists, and the quality of the steel pipe is influenced.
Disclosure of Invention
The utility model aims at the defects and provides a steel pipe, namely a longitudinal and transverse groove hot melting anticorrosive coating steel pipe, which has firm bonding between the hot melting anticorrosive coating and the side surface of the steel pipe and improves the product quality.
The purpose of the utility model is realized like this: move about freely and quickly slot hot melt anticorrosive coating steel pipe, including the circular shape steel pipe body of outside, steel pipe body inside have an inner chamber, scribble one deck hot melt anticorrosive coating, characterized by at steel pipe body lateral surface: the steel pipe body lateral surface have the slot that the interval set up, be the arch between the adjacent slot, the slot include the horizontal slot of linear type in the middle of the steel pipe body outside and the annular vertical slot at steel pipe body outside both ends, horizontal slot length direction be parallel with steel pipe body center, vertical slot length direction be perpendicular with steel pipe body center, the inboard slot that fills of hot melt anticorrosive coating inside.
Furthermore, the steel pipe body is also provided with longitudinal grooves arranged at intervals in the middle.
Further, the longitudinal grooves of each end of the steel pipe body are multi-channel, and the parts of the longitudinal grooves close to the ends are shallower than the parts far away from the ends.
Furthermore, a layer of zinc impregnation layer is arranged outside the steel pipe body.
The utility model has the advantages that: the steel pipe has the advantages of firm bonding between the hot-melt anticorrosive layer and the side surface of the steel pipe and improvement of product quality.
Drawings
Fig. 1 is a schematic longitudinal section of the present invention.
Fig. 2 is a schematic sectional view taken along the direction a-a in fig. 1.
Wherein: 1. the steel pipe comprises a steel pipe body 2, an inner cavity 3, a hot-melt anticorrosive layer 4, a transverse groove 5, a longitudinal groove 6 and a zinc impregnation layer.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1 and 2, the longitudinal and transverse groove hot-melt anticorrosive coating steel pipe comprises a circular steel pipe body 1 outside, an inner cavity 2 is arranged inside the steel pipe body, and a layer of hot-melt anticorrosive coating 3 is coated on the outer side surface of the steel pipe body, and the steel pipe is characterized in that: the steel pipe body lateral surface have the slot that the interval set up, be the arch between the adjacent slot, the slot include the horizontal slot 4 of linear type in the middle of the steel pipe body outside and the annular vertical slot 5 at steel pipe body outside both ends, horizontal slot length direction be parallel with steel pipe body center, vertical slot length direction be perpendicular with steel pipe body center, the hot melt anticorrosive coating inboard fill the slot the inside.
The utility model discloses owing to set up vertical slot and horizontal slot, can realize that hot melt anticorrosive coating and steel pipe body outside structure are more firm, realize the utility model discloses a purpose.
Furthermore, the steel pipe body is also provided with longitudinal grooves arranged at intervals in the middle.
Therefore, the hot-melt anticorrosive coating is combined with the outer surface of the steel pipe body more firmly.
Further, the longitudinal grooves of each end of the steel pipe body are multi-channel, and the parts of the longitudinal grooves close to the ends are shallower than the parts far away from the ends.
The utility model discloses set up like this, can strengthen the firm in connection nature of steel pipe tip, damage the steel pipe when reducing the connection.
Furthermore, a layer of zincizing layer 6 is arranged outside the steel pipe body. Therefore, the steel pipe has better corrosion prevention effect.
The above description is only for the specific embodiment of the present invention, but the structural features of the present invention are not limited thereto, and any person skilled in the art can make changes or modifications within the scope of the present invention.