阅读说明：本技术 一种钢带增强聚乙烯螺旋管及其生产工艺 (Steel strip reinforced polyethylene spiral pipe and production process thereof ) 是由 郑伯通 于 2020-12-24 设计创作，主要内容包括：一种钢带增强聚乙烯螺旋管及其生产工艺,包括聚乙烯外层基体和钢带波形体,聚乙烯外层基体粘附在钢带波形体上,聚乙烯外层基体外粘结树脂。本发明以聚乙烯为外层基体材料,在表面涂覆高性能聚乙烯粘结树脂,并弯曲成型的钢带波形体为主要支撑结构,以缠绕和挤出制备螺旋波纹管材,最后加热辊压提高粘附效果,保证复合管质量。(A spiral steel-band reinforced polyethylene pipe is composed of an external polyethylene layer adhered to the corrugated steel band body and a resin adhered to the external polyethylene layer. The invention takes polyethylene as an outer layer matrix material, high-performance polyethylene bonding resin is coated on the surface of the outer layer matrix material, a bent and formed steel strip corrugated body is taken as a main supporting structure, a spiral corrugated pipe is prepared by winding and extruding, and finally, the spiral corrugated pipe is heated and rolled to improve the adhesion effect and ensure the quality of the composite pipe.)

1. The steel band reinforced polyethylene spiral pipe is characterized by comprising a polyethylene outer layer matrix and a steel band corrugated body, wherein the polyethylene outer layer matrix is adhered to the steel band corrugated body, and resin is bonded outside the polyethylene outer layer matrix.

2. A production process of a spiral pipe made of steel strip reinforced polyethylene is characterized by comprising the following steps:

(1) preparing a polyethylene outer-layer matrix for later use;

(2) bending the steel strip into a wave-shaped body;

(3) winding a polyethylene outer-layer matrix outside the steel belt to form a composite pipe, clamping the end of the composite pipe into a compression roller provided with a rotating wheel, driving the rotating wheel to rotate by a motor to further drive the composite pipe to rotate, and extruding the composite integral spiral corrugated pipe;

(4) heating the contact surface of the spiral corrugated pipe and the resin membrane, and pressing and adhering the resin on the spiral corrugated pipe through a pressing roller on a pressing roller machine.

3. A spiral pipe production process with steel belt reinforced polyethylene as claimed in claim 2, wherein a walking frame is arranged in front of the rotating wheel, and the front end of the walking frame is connected with a roller press.

4. A spiral pipe production process for steel belt reinforced polyethylene according to claim 2, wherein the heating manner in the step (4) is to install a hot air blower on the roller, and the hot air blower is supplied with air by an air pump.

5. A spiral pipe production process with steel belt reinforced polyethylene as claimed in claim 2, wherein the first press roll and the second press roll of the press roll are located at the same horizontal plane.

6. A spiral pipe production process with steel belt reinforced polyethylene as claimed in claim 2, wherein the linear speed of rotation of the first and second rolls is the same as the linear speed of rotation of the composite pipe.

7. A spiral pipe production process with steel belt reinforced polyethylene as claimed in claim 2, wherein the first and second rollers rotate in the direction opposite to the direction of rotation of the composite pipe.

Technical Field

The invention relates to the technical field of spiral pipe production, in particular to a steel belt reinforced polyethylene spiral pipe and a production process thereof.

Background

The steel band reinforced polyethylene spiral corrugated pipe unifies the high rigidity of the steel band and the corrosion resistance of the polyethylene material, and the high cost performance enables the steel band reinforced polyethylene spiral corrugated pipe to be widely popularized in the field of drainage. The processing technology of the existing production equipment is that a plastic-coated steel belt is firstly bonded with an inner sheet, and then an outer sheet is bonded with the inner sheet, so that the steel belt is coated in polyethylene. Before the inner sheet is bonded with the outer sheet, the inner sheet is heated by hot air, the hot air needs manual adjustment, and technological parameters are difficult to master. If the heating temperature is slightly low, the bonding effect of the inner and outer sheets can be reduced, so that the product quality is influenced; if the heating temperature is slightly high, the polyethylene with lower melt index will have the phenomenon of web sagging, commonly called "sheet dropping", thereby affecting the bonding of the inner and outer sheets.

Disclosure of Invention

The invention provides a steel belt reinforced polyethylene spiral pipe and a production process thereof for solving the problems.

The technical scheme adopted by the invention is as follows:

a steel-band reinforced polyethylene spiral pipe comprises a polyethylene outer-layer matrix and a steel-band corrugated body, wherein the polyethylene outer-layer matrix is adhered to the steel-band corrugated body, and resin is bonded outside the polyethylene outer-layer matrix.

A production process of a steel strip reinforced polyethylene spiral pipe comprises the following steps:

(1) preparing a polyethylene outer-layer matrix for later use;

(2) bending the steel strip into a wave-shaped body;

(3) winding a polyethylene outer-layer matrix outside the steel belt to form a composite pipe, clamping the end of the composite pipe into a compression roller provided with a rotating wheel, driving the rotating wheel to rotate by a motor to further drive the composite pipe to rotate, and extruding the composite integral spiral corrugated pipe;

(4) heating the contact surface of the spiral corrugated pipe and the resin membrane, and pressing and adhering the resin on the spiral corrugated pipe through a pressing roller on a pressing roller machine.

The front of the rotating wheel is provided with a walking frame, and the front end of the walking frame is connected with a roller press.

And (4) installing a hot air blower on the compression roller machine in a heating mode, wherein the hot air blower is supplied with air by an air pump.

The first press roller and the second press roller of the press roller machine are positioned on the same horizontal plane.

The linear speed of rotation of the first pressing roller and the second pressing roller is the same as the linear speed of rotation of the composite pipe.

The rotating direction of the first pressing roller and the second pressing roller is opposite to the rotating direction of the composite pipe.

The invention has the beneficial effects that: the invention takes polyethylene as an outer layer matrix material, high-performance polyethylene bonding resin is coated on the surface of the outer layer matrix material, a bent and formed steel strip corrugated body is taken as a main supporting structure, a spiral corrugated pipe is prepared by winding and extruding, and finally, the spiral corrugated pipe is heated and rolled to improve the adhesion effect and ensure the quality of the composite pipe.

Detailed Description

A steel-band reinforced polyethylene spiral pipe comprises a polyethylene outer-layer matrix and a steel-band corrugated body, wherein the polyethylene outer-layer matrix is adhered to the steel-band corrugated body, and resin is bonded outside the polyethylene outer-layer matrix.

A production process of a steel strip reinforced polyethylene spiral pipe comprises the following steps:

(1) preparing a polyethylene outer-layer matrix for later use;

(2) bending the steel strip into a wave-shaped body;

(3) winding a polyethylene outer-layer base body outside a steel belt to form a composite pipe, clamping the end of the composite pipe into a press roller machine provided with a rotating wheel, wherein a first press roller and a second press roller of the press roller machine are positioned on the same horizontal plane, a motor drives the rotating wheel to rotate so as to drive the composite pipe to rotate, arranging a walking frame in front of the rotating wheel, connecting the front end of the walking frame with the press roller machine, enabling the linear speed of rotation of the first press roller and the second press roller to be the same as the linear speed of rotation of the composite pipe, enabling the rotation direction of the first press roller and the second press roller to be opposite to the rotation direction of the composite pipe, and extruding a;

(4) heating the contact surface of the spiral corrugated pipe and the resin membrane, wherein a hot air blower is arranged on a compression roller machine in a heating mode, air is supplied to the hot air blower by an air pump, and then the resin is pressed and adhered to the spiral corrugated pipe through a compression roller on the compression roller machine.

The present invention will be described in detail with reference to specific examples.

Example 1

The steel belt reinforced polyethylene spiral pipe with the caliber of 300mm is produced,

a steel-band reinforced polyethylene spiral pipe comprises a polyethylene outer-layer matrix and a steel-band corrugated body, wherein the polyethylene outer-layer matrix is adhered to the steel-band corrugated body, and resin is bonded outside the polyethylene outer-layer matrix.

A production process of a steel strip reinforced polyethylene spiral pipe comprises the following steps:

(1) preparing a polyethylene outer-layer matrix for later use;

(2) bending the steel strip into a corrugated body with the caliber of 300 mm;

(3) winding a polyethylene outer-layer base body outside a steel belt to form a composite pipe, clamping the end of the composite pipe into a press roller machine provided with a rotating wheel, wherein a first press roller and a second press roller of the press roller machine are positioned on the same horizontal plane, a motor drives the rotating wheel to rotate so as to drive the composite pipe to rotate, arranging a walking frame in front of the rotating wheel, connecting the front end of the walking frame with the press roller machine, enabling the linear speed of rotation of the first press roller and the second press roller to be the same as the linear speed of rotation of the composite pipe, enabling the rotation direction of the first press roller and the second press roller to be opposite to the rotation direction of the composite pipe, and extruding a;

(4) heating the contact surface of the spiral corrugated pipe and the resin membrane, wherein a hot air blower is arranged on a compression roller machine in a heating mode, air is supplied to the hot air blower by an air pump, and then the resin is pressed and adhered to the spiral corrugated pipe through a compression roller on the compression roller machine.

The embodiments of the present invention have been described in detail, but the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.