CN110560340A - method for producing spigot-and-socket flaring plastic-coated composite steel pipe at high frequency and high temperature - Google Patents

method for producing spigot-and-socket flaring plastic-coated composite steel pipe at high frequency and high temperature Download PDF

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Publication number
CN110560340A
CN110560340A CN201810575228.1A CN201810575228A CN110560340A CN 110560340 A CN110560340 A CN 110560340A CN 201810575228 A CN201810575228 A CN 201810575228A CN 110560340 A CN110560340 A CN 110560340A
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CN
China
Prior art keywords
steel pipe
spraying
producing
high temperature
coated composite
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.)
Withdrawn
Application number
CN201810575228.1A
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Chinese (zh)
Inventor
陈慧
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yunnan Gutebang Steel Pipe Manufacturing Co Ltd
Original Assignee
Yunnan Gutebang Steel Pipe Manufacturing Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Yunnan Gutebang Steel Pipe Manufacturing Co Ltd filed Critical Yunnan Gutebang Steel Pipe Manufacturing Co Ltd
Priority to CN201810575228.1A priority Critical patent/CN110560340A/en
Publication of CN110560340A publication Critical patent/CN110560340A/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/002—Processes for applying liquids or other fluent materials the substrate being rotated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
    • B05D1/12—Applying particulate materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/30—Processes for applying liquids or other fluent materials performed by gravity only, i.e. flow coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/002—Pretreatement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
    • B05D3/0218—Pretreatment, e.g. heating the substrate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/04—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases
    • B05D3/0406—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases the gas being air
    • B05D3/0426—Cooling with air
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/22—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to internal surfaces, e.g. of tubes

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

The invention discloses a method for producing a spigot-and-socket flaring plastic-coated composite steel pipe at high frequency and high temperature, which comprises the following steps of carrying out internal and external burr treatment on the steel pipe by shot blasting and abrasive paper; conveying the deburring steel pipe to the inner side of the powder spraying device through a conveying device; the powder spraying device comprises a moving mechanism, a clamping rotating mechanism, an inner spraying mechanism, an outer spraying mechanism, a heating mechanism and a polyethylene spraying mechanism; spraying high-density polyethylene on the inner edge side of the flaring of the steel pipe by a polyethylene spraying mechanism, and cooling; the steel pipe is heated by the heating mechanism, and the waste heat of the steel pipe is utilized to spray the inside and the outside of the steel pipe through the clamping and rotating mechanism. The invention provides a method for producing a spigot-and-socket flaring plastic-coated composite steel pipe at high frequency and high temperature, which adopts a bell spigot-and-socket and sealing connection mode, and has the advantages of high sealing reliability, quick installation and long service life; the device has simple structure and convenient use.

Description

Method for producing spigot-and-socket flaring plastic-coated composite steel pipe at high frequency and high temperature
Technical Field
The invention relates to a method for producing a socket type flaring plastic-coated composite steel pipe at high frequency and high temperature, in particular to a method for producing a socket type flaring plastic-coated composite steel pipe at high frequency and high temperature.
background
The steel-plastic composite pipe has wide application prospect as a novel pipeline with performance advantages of both steel pipes and plastics, such as the fields of building water supply, gas delivery and fire-fighting water supply. Coating a plastic product; with the increasing competition of steel pipe markets, the pipe end processing mode of the steel pipes directly influences the butt joint quality of the steel pipes in the steel pipe connection process, and finally influences the service life of the steel pipes. At present, two methods of pipe end sealing welding and surfacing welding are generally adopted for the treatment of a steel pipe end in the steel pipe manufacturing industry, the two methods have higher requirements on a welding process and a welder operation method, and the field construction difficulty is higher.
Disclosure of Invention
The invention aims to solve the technical problem of providing a method for producing a socket type flaring plastic-coated composite steel pipe at high frequency and high temperature, which solves the problems that the requirements of pipe end sealing and surfacing welding technologies are high, the operation technique is high, and the field construction difficulty is high by matching with a novel pipeline connection technology under the condition that the pipe end of the steel pipe is not damaged and expanded.
In order to solve the technical problem, the invention provides a method for producing a socket type flaring plastic-coated composite steel pipe at high frequency and high temperature, which comprises the following steps: (1) carrying out internal and external burr treatment on the steel pipe by adopting shot blasting and abrasive paper; (2) conveying the deburring steel pipe to the inner side of the powder spraying device through a conveying device; the powder spraying device comprises a moving mechanism, a clamping and rotating mechanism, an inner spraying mechanism, an outer spraying mechanism, a heating mechanism and a polyethylene spraying mechanism; the steel pipe is conveyed to the upper end of the heating mechanism through the moving mechanism, and one end of the flaring of the steel pipe is heated at high temperature; spraying high-density polyethylene on the inner edge side of the flaring of the steel pipe by a polyethylene spraying mechanism, and cooling; the steel pipe sprayed with the high-density polyethylene is heated by the heating mechanism, and the steel pipe is sprayed by using the waste heat of the steel pipe; the clamping and rotating mechanism fastens and rotates the steel pipe, the inner spraying mechanism moves along the axis of the inner wall of the steel pipe, and spraying is finished during rotation of the steel pipe; the clamping and rotating mechanism fastens and rotates the steel pipe, the outer spraying mechanism moves along the axis of the outer wall of the steel pipe, and spraying is finished during rotation of the steel pipe; (4) and (4) leveling the sprayed steel pipe through solidification, and cooling.
Preferably, the high-density polyethylene is sprayed at the flaring of the steel pipe for the first time, and the temperature of the steel pipe is two hundred and seventy degrees to three hundred and ten degrees.
Preferably, the steel pipes sprayed inside and outside the steel pipes are heated to twenty to sixty degrees.
Preferably, the cure leveling temperature is one hundred eighty degrees to two hundred thirty degrees for ten to fifteen minutes.
preferably, the steel pipe is naturally placed and cooled.
By adopting the technical scheme, the method for producing the socket type flaring plastic-coated composite steel pipe at high frequency and high temperature comprises the following steps of carrying out internal and external burr treatment on the steel pipe by adopting shot blasting and abrasive paper; conveying the deburring steel pipe to the inner side of the powder spraying device through a conveying device; the powder spraying device comprises a moving mechanism, a clamping rotating mechanism, an inner spraying mechanism, an outer spraying mechanism, a heating mechanism and a polyethylene spraying mechanism; spraying high-density polyethylene on the inner edge side of the flaring of the steel pipe by a polyethylene spraying mechanism, and cooling; the steel pipe is heated by the heating mechanism, and the waste heat of the steel pipe is utilized to spray the inside and the outside of the steel pipe through the clamping and rotating mechanism. The method does not need to be the same as the traditional method for producing the socket type flaring plastic-coated composite steel pipe at high frequency and high temperature in the using process; the burrs are removed by grinding the inside and the outside of the steel pipe, so that the spraying is convenient; the high-density polyethylene is sprayed on the flaring transition part, so that the butt joint is facilitated; meanwhile, air leakage and water are prevented through internal and external spraying, and the maintenance is convenient; the device has simple structure and convenient use.
Detailed Description
The present invention will be described in more detail in order to facilitate understanding of the invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
it will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for descriptive purposes only.
unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The present invention is further illustrated by the following examples.
A method for producing a socket type flaring plastic-coated composite steel pipe at high frequency and high temperature comprises the following steps:
(1) Carrying out internal and external burr treatment on the steel pipe by adopting shot blasting and abrasive paper;
(2) Conveying the deburring steel pipe to the inner side of the powder spraying device through a conveying device;
the powder spraying device comprises a moving mechanism, a clamping rotating mechanism, an inner spraying mechanism, an outer spraying mechanism, a heating mechanism and a polyethylene spraying mechanism;
the steel pipe is conveyed to the upper end of the heating mechanism through the moving mechanism, and one end of the flaring of the steel pipe is heated at high temperature;
Spraying high-density polyethylene on the inner edge side of the flaring of the steel pipe by a polyethylene spraying mechanism, and cooling;
The butt joint is convenient;
The steel pipe sprayed with the high-density polyethylene is heated by a heating mechanism, and the steel pipe is sprayed by using the waste heat of the steel pipe;
The clamping and rotating mechanism fastens and rotates the steel pipe, the inner spraying mechanism moves along the axis of the inner wall of the steel pipe, and spraying is finished during rotation of the steel pipe;
The clamping and rotating mechanism fastens and rotates the steel pipe, the outer spraying mechanism moves along the axis of the outer wall of the steel pipe, and spraying is finished during rotation of the steel pipe;
(4) And (4) leveling the sprayed steel pipe through solidification, and cooling.
Preferably, the high-density polyethylene is sprayed at the flaring part of the steel pipe for the first time, and the temperature of the steel pipe is between two hundred and seventy degrees and three hundred and ten degrees.
Preferably, the steel pipe is heated by twenty to sixty degrees in the inner spraying and outer spraying of the steel pipe.
preferably, the cure leveling temperature is one hundred eighty degrees to two hundred thirty degrees for ten to fifteen minutes.
preferably, the steel pipe is naturally left to cool.
the invention provides a method for producing a spigot-and-socket flaring plastic-coated composite steel pipe at high frequency and high temperature, which adopts a bell spigot-and-socket and sealing connection mode, and has the advantages of high sealing reliability, quick installation and long service life; the device has simple structure and convenient use.
The embodiments of the present invention have been described in detail, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, and the scope of protection is still within the scope of the invention.

Claims (5)

1. A method for producing a socket type flaring plastic-coated composite steel pipe at high frequency and high temperature is characterized by comprising the following steps:
(1) Carrying out internal and external burr treatment on the steel pipe by adopting shot blasting and abrasive paper;
(2) Conveying the deburring steel pipe to the inner side of the powder spraying device through a conveying device;
The powder spraying device comprises a moving mechanism, a clamping and rotating mechanism, an inner spraying mechanism, an outer spraying mechanism, a heating mechanism and a polyethylene spraying mechanism;
the steel pipe is conveyed to the upper end of the heating mechanism through the moving mechanism, and one end of the flaring of the steel pipe is heated at high temperature;
spraying high-density polyethylene on the inner edge side of the flaring of the steel pipe by a polyethylene spraying mechanism, and cooling;
the steel pipe sprayed with the high-density polyethylene is heated by the heating mechanism, and the steel pipe is sprayed by using the waste heat of the steel pipe;
the clamping and rotating mechanism fastens and rotates the steel pipe, the inner spraying mechanism moves along the axis of the inner wall of the steel pipe, and spraying is finished during rotation of the steel pipe;
the clamping and rotating mechanism fastens and rotates the steel pipe, the outer spraying mechanism moves along the axis of the outer wall of the steel pipe, and spraying is finished during rotation of the steel pipe;
(4) And (4) leveling the sprayed steel pipe through solidification, and cooling.
2. the method for producing the socket type flaring plastic-coated composite steel pipe at high frequency and high temperature according to claim 1, wherein the high-density polyethylene is sprayed for the first time at the flaring of the steel pipe, and the temperature of the steel pipe is two hundred and seventy degrees to three hundred and ten degrees.
3. The method for producing the socket type flaring plastic-coated composite steel pipe at high frequency and high temperature according to claim 1, wherein the steel pipes sprayed inside and outside the steel pipe are heated to twenty to sixty degrees.
4. The method for producing the socket type flaring plastic-coated composite steel pipe at high frequency and high temperature according to claim 1, wherein the curing and leveling temperature is one hundred eighty degrees to two hundred thirty degrees for ten to fifteen minutes.
5. the method for producing the socket type flaring plastic-coated composite steel pipe at high frequency and high temperature according to claim 1, wherein the steel pipe is naturally placed and cooled.
CN201810575228.1A 2018-06-06 2018-06-06 method for producing spigot-and-socket flaring plastic-coated composite steel pipe at high frequency and high temperature Withdrawn CN110560340A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810575228.1A CN110560340A (en) 2018-06-06 2018-06-06 method for producing spigot-and-socket flaring plastic-coated composite steel pipe at high frequency and high temperature

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810575228.1A CN110560340A (en) 2018-06-06 2018-06-06 method for producing spigot-and-socket flaring plastic-coated composite steel pipe at high frequency and high temperature

Publications (1)

Publication Number Publication Date
CN110560340A true CN110560340A (en) 2019-12-13

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810575228.1A Withdrawn CN110560340A (en) 2018-06-06 2018-06-06 method for producing spigot-and-socket flaring plastic-coated composite steel pipe at high frequency and high temperature

Country Status (1)

Country Link
CN (1) CN110560340A (en)

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Application publication date: 20191213