WO2019056510A1 - 一种端口增强环内衬塑料管承插式金属管及制作方法 - Google Patents

一种端口增强环内衬塑料管承插式金属管及制作方法 Download PDF

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Publication number
WO2019056510A1
WO2019056510A1 PCT/CN2017/109448 CN2017109448W WO2019056510A1 WO 2019056510 A1 WO2019056510 A1 WO 2019056510A1 CN 2017109448 W CN2017109448 W CN 2017109448W WO 2019056510 A1 WO2019056510 A1 WO 2019056510A1
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WO
WIPO (PCT)
Prior art keywords
pipe
ring
plastic
type metal
metal pipe
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PCT/CN2017/109448
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English (en)
French (fr)
Inventor
肖和飞
尹希伟
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湖南振辉管业有限公司
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Publication of WO2019056510A1 publication Critical patent/WO2019056510A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L9/00—Rigid pipes
    • F16L9/14—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups
    • F16L9/147—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups comprising only layers of metal and plastics with or without reinforcement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/08—Tube expanders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
    • B29C65/64—Joining a non-plastics element to a plastics element, e.g. by force
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5221—Joining tubular articles for forming coaxial connections, i.e. the tubular articles to be joined forming a zero angle relative to each other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5229—Joining tubular articles involving the use of a socket
    • B29C66/52295—Joining tubular articles involving the use of a socket said socket comprising reinforcements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/20—Controlling water pollution; Waste water treatment

Definitions

  • the invention relates to a port reinforcing ring lined plastic pipe socket type metal pipe and a manufacturing method thereof.
  • the plastic pipe lining metal pipe is lining the most suitable for tap water due to its good mechanical properties, environmental protection, low energy consumption, high water delivery efficiency, low operating cost, long service life and strong environmental applicability.
  • Pipeline for delivery After the plastic pipe lining metal pipe is finished, the plastic layer on both ends of the pipe is firmly bonded to the metal layer, and the use process is relatively safe in a short time, but when the pipe is used for a long time or stacked for a long time, the metal on both ends The layer will have a certain rust, which will cause the plastic layer on both ends of the tube to separate from the metal layer.
  • the plastic layer has a hydraulic function to clog the pipe under the flange, which affects the normal water supply of the pipe, and the stratified position between the plastic layer and the metal layer, and the direct contact between the water and the metal has a serious impact on the water quality.
  • the technical problem to be solved by the present invention is to provide a port-reinforced ring-lined plastic pipe socket type metal pipe which can solve the problem of delamination of a plastic pipe and a metal pipe and a manufacturing method thereof.
  • the port reinforcement ring lining plastic pipe socket type metal pipe of the invention comprises a plastic pipe socket metal pipe body lined with a plastic pipe, and the socket end and the socket end of the lining plastic pipe socket metal pipe body are respectively provided A reinforcing ring that is expanded into the plastic tube and the plastic tube is deformed.
  • the plastic tube has a deformation amount of 0.1 mm to 1 mm.
  • the reinforcing ring is a stainless steel reinforcing ring.
  • the lining plastic pipe socket type metal pipe body refers to a composite pipe formed by pulling a plastic pipe into a metal pipe with a hot melt adhesive bond between the two, or by pressing a plastic pipe into the metal pipe. Pipe.
  • the plastic pipe refers to a polyethylene pipe (PE), a polypropylene pipe (PP-R), a crosslinked polyethylene pipe (PE-X) or a hard polyvinyl chloride pipe (PVC-U), etc.;
  • the tube is a socketed ductile iron pipe.
  • the socket end of the lining plastic pipe socket metal pipe body is from the top end of the pipe socket to the pipe body portion 5 cm - 30 cm, and the socket end is the edge of the top end of the pipe socket.
  • the manufacturing method of the port reinforcing ring lining plastic pipe socket type metal pipe of the invention is: after the inner lining plastic pipe socket metal pipe body is finished, the reinforcing ring is first prepared, and then the reinforcing ring is installed, and finally End surface anti-corrosion treatment.
  • the reinforcing ring is a stainless steel reinforcing ring, and the manufacturing steps are as follows:
  • the outer diameter of the stainless steel reinforcing ring is smaller than the inner diameter of the inner tube of the plastic pipe socket type metal pipe by 0.5-2.0 mm; the width is 1 cm-10 cm, and the thickness is 1 mm-3 mm (preferably 1.2 mm-2.0 mm).
  • the deformation of the stainless steel reinforced annular expansion ring is controlled by controlling the outer diameter deformation of the lining plastic tube ferrule metal tube body, and the stainless steel reinforced annular expansion ring needs to reach the outer diameter of the lining plastic tube socket type metal tube body. -2mm deformation.
  • the inner diameter or the outer diameter of the plastic pipe socket type metal pipe body is calculated by automatically expanding the expansion pipe pressure of the expansion pipe device or the expansion pipe device, and then the outer diameter of the expansion pipe die of the expansion pipe device or the expansion pipe device is increased.
  • the deformation amount of the stainless steel reinforcing ring is reached up to the set value (that is, the deformation amount of the lining plastic pipe socket metal pipe body is required to be increased).
  • the lining plastic pipe socket type metal pipe body is a lining polyethylene pipe socket type ductile iron pipe.
  • Lining plastic pipe socket type metal pipe generally adopts the structure of hot melt adhesive to solve the problem of bonding plastic pipe and metal pipe.
  • Hot melt adhesive can achieve sufficient bonding of plastic pipe and metal pipe in a short time; However, the time is long, especially in harsh environments, such as long-term outdoor sun and rain, or extremely cold or extremely hot areas. In the case of conveying medium containing acid or alkali or other chemical corrosion, hot melt adhesive is easy to age.
  • the lining of the plastic pipe and the metal pipe causes the water pipe to be blocked, which causes secondary pollution of the water.
  • the port reinforcement ring can completely solve the problem of delamination of the plastic pipe and the metal pipe.
  • Lining plastic pipe socket type metal pipe its connection mode is socket type connection, high requirements for the roundness of the pipe socket and socket, adding reinforcement ring at the port, adding metal pipe socket and socket The strength can better solve the problem that the metal pipe is easily deformed during the transportation process, the loading and unloading process, the installation process, etc. due to the external force, resulting in difficulty in installation and even installation.
  • the addition of the reinforcing ring can completely solve the problem of delamination of the plastic tube and the metal tube, so the use amount of the hot melt adhesive can be reduced, and the thickness of the plastic tube can be correspondingly reduced, thereby saving material and reducing cost.
  • the material cost of saving and the cost of increasing the reinforcing ring are more than 60%.
  • the invention adopts the technical scheme of the two-port mounting reinforcing ring of the lining plastic pipe socket type metal pipe, prevents the lining of the inner and outer layers of the lining plastic pipe socket metal pipe, and effectively maintains the lining plastic pipe socket.
  • the stability and integrity of the metal tube structure is not limited.
  • the invention controls the deformation of the annular expansion ring by controlling the outer diameter deformation of the lining plastic tube lining metal tube, in particular, the lining plastic pipe bearing is calculated by controlling the automatic expansion of the expansion device or the expansion tube pressure. Insert the inner diameter or outer diameter of the metal tube, and then increase the outer diameter of the expansion tube of the expansion tube device or the expansion device to the set value (ie, increase the deformation of the metal tube body of the inner liner plastic tube)
  • the technical solution to achieve the deformation of the stainless steel reinforcing ring not only ensures the sturdy and firm installation of the reinforcing ring, but also prevents the pipe cracking and the difficulty of pipe installation caused by the excessive deformation of the lining plastic pipe socket metal pipe, and solves the expansion.
  • the pressure of the pipe equipment or the expansion device cannot control the deformation amount of the plastic pipe socket type metal pipe expansion ring with different wall thickness and non-circular pipe.
  • the annular expansion ring when used to expand the outer diameter of the metal pipe, the outer diameter of the metal pipe is expanded by 1-2 mm, and when the expansion pipe device or the expansion device is stopped, the metal pipe will be quickly retracted, and the reinforcing ring is expanded on the surface of the plastic pipe, and the plastic is plastic.
  • the tube is deformed by 0.1 mm to 1 mm, so that the reinforcing ring firmly supports the plastic tube port by using the compressive stress, thereby solving the problem of delamination of the plastic tube and the metal tube.
  • the invention adopts a manipulator release ring, and the flushing machine has a technical scheme of aligning the reinforcing ring with the lining plastic pipe socket metal pipe port, the production efficiency is high, and the processed product quality is stable and reliable.
  • the invention adopts the technical scheme of preserving the reinforcing ring by using zinc-rich paint, can improve the internal anticorrosion performance of the lining plastic pipe socket metal pipe, and prolong the service life of the lining plastic pipe socket metal pipe.
  • the effect of the reinforcing ring is further remarkable.
  • FIG. 1 is a schematic structural view of an embodiment of a port reinforcing ring lined plastic pipe socket type metal pipe according to the present invention
  • Fig. 2 is an enlarged schematic view showing a portion A of the embodiment shown in Fig. 1.
  • the port reinforcement ring lined with a plastic pipe socket type metal pipe of the embodiment includes a plastic pipe socket type metal pipe body 1 lined with the inner liner, and the inner liner plastic pipe socket type metal pipe body 1
  • the socket end and the socket end are respectively provided with a stainless steel reinforcing ring 2 which is expanded in the plastic tube 1-2 and the plastic tube 1-2 is deformed.
  • the plastic tube 1-2 has a deformation amount of 0.5 mm.
  • the lining plastic pipe socket metal pipe body 1 refers to a composite pipe formed by pressing the plastic pipe 1-2 into the metal pipe 1-1. Of course, it may also refer to a composite pipe formed by drawing a plastic pipe into a metal pipe with a hot melt adhesive bond therebetween.
  • the plastic tube 1-2 is a polyethylene tube (PE), and the metal tube 1-1 is a socket type ductile iron tube.
  • the plastic tube may also be a polypropylene tube (PP-R), a cross-linked polyethylene tube (PE-X) or a rigid polyvinyl chloride tube (PVC-U).
  • the socket end of the inner liner plastic pipe socket metal pipe body 1 is 20 cm from the top end of the pipe socket to the pipe body portion, and the socket end is the edge of the top end of the pipe socket.
  • the production method includes the following steps:
  • the first step is to apply a certain pressure to deform the stainless steel reinforcing ring and affix the inner wall of the lining ductile ductile iron pipe lined with polyethylene pipe, but at this time, the inner pipe of the polyethylene pipe socket type ductile iron pipe body does not deform
  • second Step by controlling the expansion tube equipment or expanding the diameter of the mold to control the deformation of the lining of the polyethylene pipe socket type ductile iron pipe body, the expansion tube stops, the pressure is released, the mold is returned, at this time the stainless steel reinforcement ring and the lining polyethylene pipe bearing
  • the plug-in ductile iron pipe body rebounds, because the rebound amplitude of the stainless steel reinforcing ring is smaller than that of the polyethylene pipe socket type ductile iron pipe body, so that the stainless steel reinforcing ring is completely fastened and firmly installed in the inner liner.
  • the manufacturing method of the port reinforcing ring lining plastic pipe socket type metal pipe of the invention comprises the following steps: the stainless steel belt is wound by a steel belt reeling machine, and the steel belt interface is welded by a welding machine, and the welding machine smoothes the welding joint to prepare Stainless steel reinforcement ring, insert stainless steel reinforcement ring into the lining plastic pipe socket metal pipe port, one end edge of stainless steel reinforcement ring is aligned with the end face of the plastic pipe socket type ductile iron pipe; the stainless steel is strengthened by the expansion pipe equipment or the expansion device The ring is inflated tightly; the end face of the tube is treated with zinc-rich paint for anti-corrosion treatment, thereby realizing the technical scheme of the stainless steel reinforcing ring supporting the plasticized inner layer of the plastic pipe socket metal pipe two-port lining to prevent the plastic layer and the metal layer of the pipe material.
  • the utility model overcomes the defects of the inner and outer layers of the pipe caused by the corrosion of the metal layer of the existing lining plastic pipe socket metal pipe port.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)

Abstract

一种端口增强环（2）内衬塑料管（1-2）承插式金属管（1-1）及制作方法，该端口增强环（2）内衬塑料管（1-2）承插式金属管（1-1）包括内衬塑料管（1-2）承插式金属管本体（1），所述内衬塑料管（1-2）承插式金属管本体（1）的承口端和插口端分别设有增强环（2），所述增强环（2）胀接在塑料管（1-2）内，且塑料管（1-2）产生形变。制作方法利用胀管设备或扩径设备将不锈钢增强环（2）胀紧，管端面进行防腐处理，从而使管端面的塑料管（1-2）层受不锈钢增强环（2）的压应力的支撑，防止塑料管（1-2）层因收缩产生的拉应力与金属管（1-1）端面分层。

Description

一种端口增强环内衬塑料管承插式金属管及制作方法 技术领域
本发明涉及一种端口增强环内衬塑料管承插式金属管及制作方法。
背景技术
内衬塑料管承插式金属管，因其机械性能好、卫生环保、能耗低、输水效率高、运行成本低、使用寿命长、环境适用性强等优点，是目前最适合用于自来水输送的管道。内衬塑料管承插式金属管制作完成后管材两端面的塑料层与金属层粘接牢靠，短时间使用过程也相对安全，但当管材使用时间长或长时间堆放于室外，两端面的金属层会产生一定的锈蚀，导致管材两端面的塑料层与金属层产生分离，同时在塑料层收缩产生的拉应力的共同作用时，塑料层与金属层分离的面积越来越大，最终可能导致塑料层有水力的作用下翻边堵塞管道，影响管道正常供水，塑料层与金属层产生分层的位置，水与金属直接接触，对水质产生严重影响。
发明内容
本发明所要解决的技术问题是，提供一种可解决塑料管与金属管分层问题的端口增强环内衬塑料管承插式金属管及制作方法。
本发明解决其技术问题所采用的技术方案是：
本发明之端口增强环内衬塑料管承插式金属管，包括内衬塑料管承插式金属管本体，所述内衬塑料管承插式金属管本体的承口端和插口端分别设有增强环，所述增强环胀接在塑料管内，且塑料管产生形变。
进一步，所述塑料管的形变量为0.1mm-1mm。
进一步，所述增强环为不锈钢增强环。
进一步，所述内衬塑料管承插式金属管本体是指将塑料管拉入金属管内，两者之间有热熔胶粘接，或通过将塑料管挤压拉入金属管内所成形的复合管材。
进一步，所述塑料管是指聚乙烯管(PE)、聚丙烯管(PP-R)、交联聚乙烯管(PE-X)或硬聚氯乙烯管(PVC—U)等；所述金属管为承插式球墨铸铁管。
进一步，所述内衬塑料管承插式金属管本体的承口端是从管材承口的顶端往管身部位5cm-30cm处，插口端是管材插口的顶端的边缘。
本发明之端口增强环内衬塑料管承插式金属管的制作方法是：在内衬塑料管承插式金属管本体制作完成后，先进行增强环的制作，然后进行增强环的安装，最后进行端面防腐处理。
进一步，所述增强环为不锈钢增强环，制作步骤如下：
1)不锈钢宽度和长度裁剪—剪板机；
2)卷圆—卷圆机；
3)焊接—焊接机；
4)焊缝打磨—打磨机。
进一步，所述不锈钢增强环的外径比内衬塑料管承插式金属管本体内径小0.5-2.0mm；宽度为1cm-10cm，厚度为1mm-3mm(优选1.2mm-2.0mm)。
进一步，所述不锈钢增强环的安装，具体步骤如下：
5)不锈钢增强环的放入—机械手；
6)平齐—平齐设备；
7)胀环—扩径设备或胀管设备。
进一步，通过控制内衬塑料管承插式金属管本体外径变形量来控制不锈钢增强环胀环变形量，不锈钢增强环胀环时需达到内衬塑料管承插式金属管本体外径产生1-2mm变形量。
进一步，通过扩径设备或胀管设备的胀管压力自动定位计算出内衬塑料管承插式金属管本体的内径或外径，再通过胀管设备或扩径设备的胀管模具外径增大至所设定值(即需增加内衬塑料管承插式金属管本体的变形量)而达到不锈钢增强环的变形量。
进一步，所述的端面防腐，具体步骤如下：
8)涂刷—刷子；如采用富锌漆等；
9)标识；
10)检验入库。
进一步，所述内衬塑料管承插式金属管本体为内衬聚乙烯管承插式球墨铸铁管。
与现有技术相比，本发明的有益效果是：
1.内衬塑料管承插式金属管一般采用的是热熔胶的结构解决塑料管与金属管粘接的问题，热熔胶在短时间内能达到塑料管与金属管的充分粘接；但是时间长，尤其是受恶劣的环境，如长时间在外日晒雨淋，或极寒或极热的地区，在输送介质含酸碱或有其他化学腐蚀等情况下，热熔胶很容易老化，导致塑料管与金属管分层，这样就会堵塞水管，也就造成水的二次污染，采用端口增强环，可以完全解决塑料管与金属管分层的问题。
2.内衬塑料管承插式金属管，它的连接方式是承插式连接，对管材的承口和插口的圆度要求较高，在端口增加增强环，增加了金属管承口和插口的强度，能更好的解决金属管在运输过程、装卸过程、安装过程等因受外力作用的情况下，容易变形，导致安装难度较大，甚至安装不了的问题。
3.增加增强环，可以完全解决塑料管与金属管分层的问题，所以可以降低热熔胶的使用量，同时塑料管的厚度也能相应减薄，更加节约材料，降低成本，经计算得出节约的材料成本与增加增强环的成本差在60％以上。
4.由于内衬塑料管承插式金属管，因为承口和插口的金属壁厚不一致，在管材加热复合时，承口和插口的温度很难控制，所以塑料管与金属管粘接难度最大的是管材的两端口，故产品合格率较低，成本非常高，增加增强环能完全解决管材端口未粘接好导致塑料管与金属管分层问题，也大大提高了内衬塑料管承插式金属管的产品合格率，大大降低了材料成本和生产人工成本。还有就是，内衬塑料管承插式金属管的不合格产品很难处理，如要将塑料与金属分离成本非常高，得不偿失，一般采取两种方法，一种是将其当废金属卖掉，此方法价格极低，成本较高；二种是将其塑料焚烧，留其金属管继续使用，此方法虽然成本较第一种方法低，但是对环境污染较大。所以增加增强环在提高产品合格率的同时还起到了节能降耗、保护环境的作用。
5.本发明采用对内衬塑料管承插式金属管两端口安装增强环的技术方案，防止了内衬塑料管承插式金属管内外层产生分层，有效保持了内衬塑料管承插式金属管结构的稳固性和完整性。
6.本发明通过控制内衬塑料管承插式金属管外径变形量来控制增强环胀环变形量，尤其是先通过控制扩径设备或胀管设备压力自动定位计算出内衬塑料管承插式金属管内径或外径，再通过胀管设备或扩径设备的胀管模具外径增大至所设定值(即需增加内衬塑料管承插式金属管本体的变形量)而达到不锈钢增强环的变形量的技术方案，既保证了增强环安装坚固、牢靠，又防止了内衬塑料管承插式金属管变形过大导致的管材开裂及管材安装困难问题，同时解决了胀管设备或扩径设备压力大小无法控制壁厚大小不一、管材不圆的内衬塑料管承插式金属管胀环变形量大小问题。
7.本发明采用增强环胀环时金属管外径扩大1-2mm，等胀管设备或扩径设备停止工作时，金属管会迅速回缩，而增强环胀接在塑料管表层，且塑料管产生形变0.1mm-1mm，这样增强环利用压应力牢牢支撑塑料管端口，从而解决塑料管与金属管分层的问题。
8..本发明采用机械手放环，平齐机将增强环与内衬塑料管承插式金属管端口平齐的技术方案，生产效率高，所加工产品质量稳定可靠。
9.本发明采用富锌漆对安装好增强环进行防腐处理的技术方案，可提高内衬塑料管承插式金属管的内防腐性能，延长内衬塑料管承插式金属管的使用寿命，使增强环的效果进一步显著。
附图说明
图1为本发明之端口增强环内衬塑料管承插式金属管实施例的结构示意图；
图2为图1所示实施例的A部放大示意图。
具体实施方式
以下附图及实施例对本发明作进一步说明。
实施例
参照图1-图2，本实施例之端口增强环内衬塑料管承插式金属管，包括内衬塑料管承插式金属管本体1，所述内衬塑料管承插式金属管本体1的承口端和插口端分别设有不锈钢增强环2，所述不锈钢增强环2胀接在塑料管1-2内，且塑料管1-2产生形变。
本实施例中，所述塑料管1-2的形变量为0.5mm。
本实施例中，所述内衬塑料管承插式金属管本体1是指通过将塑料管1-2挤压拉入金属管1-1内所成形的复合管材。当然，也可以是指将塑料管拉入金属管内，两者之间有热熔胶粘接所成形的复合管材。
本实施例中，所述塑料管1-2为聚乙烯管(PE)，所述金属管1-1为承插式球墨铸铁管。当然，所述塑料管也可以是聚丙烯管(PP-R)、交联聚乙烯管(PE-X)或硬聚氯乙烯管(PVC—U)等。
本实施例中，所述内衬塑料管承插式金属管本体1的承口端是从管材承口的顶端往管身部位20cm处，插口端是管材插口的顶端的边缘。
制作方法，包括以下步骤：
1)测量内衬聚乙烯管承插式球墨铸铁管本体内径，计算比内衬聚乙烯管承插式球墨铸铁管本体内径小1mm的不锈钢增强环周长，以计算出的周长为长度裁剪不锈钢带，不锈钢带宽度为2cm。
2)按不锈钢增强环外径大小调整卷圆机模具位置和角度，将裁剪好的不锈钢带送入卷圆成不锈钢环。
3)卷圆的不锈钢环送入自动焊接机焊接。
4)焊接好的不锈钢环焊缝经打磨机打磨平整，不锈钢增强环制作完成。
5)将不锈钢增强环置于上料架，内衬聚乙烯管承插式球墨铸铁管本体置于制定工位，机械手将不锈钢增强环插入内衬聚乙烯管承插式球墨铸铁管本体端内，插入深度为不锈钢增强环宽度的三分之二。
6)将插入内衬聚乙烯管承插式球墨铸铁管本体内的不锈钢增强环用平齐机顶入内衬聚乙烯承插式球墨铸铁管本体内，直至不锈钢增强环与内衬聚乙烯管承插式球墨铸铁管本体端面齐平。
7)将配胀管设备或扩径设备模具插入装有不锈钢增强环的内衬聚乙烯管承插式球墨铸铁管本体内，通过以下方式胀管：
a)施加一定的压力使不锈钢增强环和内衬聚乙烯管承插式球墨铸铁管本体发生变形，泄压，模具退回，此时不锈钢增强环于内衬聚乙烯管承插式球墨铸铁管本体发生回弹，由于不锈钢增强环的回弹幅度小于内衬聚乙烯管承插式球墨铸铁管本体的幅度，使不锈钢增强环完全紧固、牢靠地安装在内衬聚乙烯管承插式球墨铸铁管本体内；
b)第一步施加一定压力使不锈钢增强环变形贴上内衬聚乙烯管承插式球墨铸铁管本体内壁，但此时内衬聚乙烯管承插式球墨铸铁管本体不发生变形，第二步通过控制胀管设备或扩径设备模具行程控制内衬聚乙烯管承插式球墨铸铁管本体变形量，胀管停止，泄压，模具退回，此时不锈钢增强环与内衬聚乙烯管承插式球墨铸铁管本体都发生回弹，由于不锈钢增强环的回弹幅度小于内衬聚乙烯管承插式球墨铸铁管本体的幅度，使不锈钢增强环完全紧固、牢靠地安装在内衬聚乙烯管承插式球墨铸铁管本体内；
c)施加压力使不锈钢增强环和内衬聚乙烯管承插式球墨铸铁管本体发生变形，内衬聚乙烯管承插式球墨铸铁管本体变形量达到指定大小后，胀管停止，泄压，模具退回，此时不锈钢增强环与内衬聚乙烯管承插式球墨铸铁管本体都发生回弹，由于不锈钢增强环的回弹幅度小于内衬聚乙烯管承插式球墨铸铁管本体的幅度，使不锈钢增强环完全紧固、牢靠地安装在内衬聚乙烯管承插式球墨铸铁管本体内；
8)将胀好不锈钢增强环的内衬聚乙烯管承插式球墨铸铁管本体端面涂上富锌漆，防止端面锈蚀。
本发明之端口增强环内衬塑料管承插式金属管的制作方法，包括不锈钢带经钢带卷圆机卷圆，再用焊接机焊接钢带接口，打磨机将焊口打磨平整，制作成不锈钢增强环，将不锈钢增强环插入内衬塑料管承插式金属管端口，不锈钢增强环一端边缘与内衬塑料管承插式球墨铸铁管端面对齐；用胀管设备或扩径设备将不锈钢增强环胀紧；管端面用富锌漆进行防腐处理，从而实现不锈钢增强环支撑内衬塑料管承插式金属管两端口的内衬塑料层，防止管材的塑料层与金属层的技术方案。它克服了现有内衬塑料管承插式金属管端口因金属层锈蚀导致的管材内外层分层的缺陷。

Claims (10)

  1. 一种端口增强环内衬塑料管承插式金属管，包括内衬塑料管承插式金属管本体，其特征在于：所述内衬塑料管承插式金属管本体的承口端和插口端分别设有增强环，所述增强环胀接在塑料管内，且塑料管产生形变。
  2. 根据权利要求1所述的端口增强环内衬塑料管承插式金属管，其特征在于：所述塑料管的形变量为0.1mm-1mm。
  3. 根据权利要求1或2所述的端口增强环内衬塑料管承插式金属管，其特征在于：所述内衬塑料管承插式金属管本体是指将塑料管拉入金属管内，两者之间有热熔胶粘接，或通过将塑料管挤压拉入金属管内所成形的复合管材。
  4. 根据权利要求1或2所述的端口增强环内衬塑料管承插式金属管，其特征在于：所述内衬塑料管承插式金属管本体的承口端是从管材承口的顶端往管身部位5cm-30cm处，插口端是管材插口的顶端的边缘。
  5. 一种如权利要求1所述的端口增强环内衬塑料管承插式金属管的制作方法，其特征在于，在内衬塑料管承插式金属管本体制作完成后，先进行增强环的制作，然后进行增强环的安装，最后进行端面防腐处理。
  6. 根据权利要求5所述的端口增强环内衬塑料管承插式金属管的制作方法，其特征在于，所述增强环为不锈钢增强环，制作步骤如下：
    1)不锈钢宽度和长度裁剪—剪板机；
    2)卷圆—卷圆机；
    3)焊接—焊接机；
    4)焊缝打磨—打磨机。
  7. 根据权利要求6所述的端口增强环内衬塑料管承插式金属管的制作方法，其特征在于，所述不锈钢增强环的安装，具体步骤如下：
    5)不锈钢增强环的放入—机械手；
    6)平齐—平齐设备；
    7)胀环—扩径设备或胀管设备。
  8. 根据权利要求7所述的端口增强环内衬塑料管承插式金属管的制作方法，其特征在于，通过控制内衬塑料管承插式金属管本体外径变形量来控制不锈钢增强环胀环变形量，不锈钢增强环胀环时需达到内衬塑料管承插式金属管本体外径产生1-2mm变形量。
  9. 根据权利要求8所述的端口增强环内衬塑料管承插式金属管的制作方法，其特征在于， 通过扩径设备或胀管设备的胀管压力自动定位计算出内衬塑料管承插式金属管本体的内径或外径，再通过胀管设备或扩径设备的胀管模具外径增大至所设定值而达到不锈钢增强环的变形量。
  10. 根据权利要求9所述的端口增强环内衬塑料管承插式金属管的制作方法，其特征在于，所述的端面防腐，具体步骤如下：
    8)涂刷—刷子；
    9)标识；
    10)检验入库。
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112025221A (zh) * 2020-08-29 2020-12-04 维都利阀门有限公司 阀体完全内衬稀有金属工艺

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109237146A (zh) * 2018-11-06 2019-01-18 湖南振辉管业有限公司 嵌入式端口增强环金属塑料复合管及其制造方法
CN109210286A (zh) * 2018-11-06 2019-01-15 湖南振辉管业有限公司 外涂塑内衬塑金属复合管及其制造方法
CN110005885A (zh) * 2019-04-29 2019-07-12 湖南振辉管业有限公司 一种承口增强型钢管及其制作方法
CN110274099A (zh) * 2019-07-26 2019-09-24 湖南振辉管业有限公司 端部设有增强密封机构的金属塑料复合管及其制造方法
CN112935109B (zh) * 2021-03-04 2023-10-10 湖南振辉管业有限公司 一种用于金属塑料复合管的液压加固装置和方法
CN115157709B (zh) * 2022-06-30 2024-02-02 湖南振辉管业有限公司 一种可形成衬环倒角的安装衬环的设备和方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005047101A (ja) * 2003-07-31 2005-02-24 Jfe Steel Kk 内面ライニング鋼管及びその製造方法
CN101852314A (zh) * 2010-03-12 2010-10-06 浙江金洲管道科技股份有限公司 一种钢塑复合管
CN202302410U (zh) * 2011-11-02 2012-07-04 深圳市燃气集团股份有限公司 钢塑过渡管件
CN204647588U (zh) * 2015-03-27 2015-09-16 鹤山联塑实业发展有限公司 一种沟槽钢塑复合管及其构成的管路
CN204647587U (zh) * 2015-03-27 2015-09-16 鹤山联塑实业发展有限公司 一种外螺纹钢塑复合管及其构成的管路
CN106907530A (zh) * 2017-03-24 2017-06-30 肖和飞 一种内衬塑料管金属管及其制造方法
CN207229946U (zh) * 2017-09-25 2018-04-13 湖南振辉管业有限公司 一种端口增强环内衬塑料管承插式金属管

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GR1005582B (el) * 2005-08-11 2007-07-16 ΣΥΝΘΕΤΟΣ ΚΥΚΛΙΚΟΣ ΣΩΛΗΝ ΑΠΟ ΧΑΛΚΟ ΜΕ ΜΕΙΓΜΑ ΠΛΑΣΤΙΚΟΥ ΠΕΡΙΒΛΗΜΑΤΟΣ (PE-HD-MD-LD-LLD,PE-Xa-b,c,PE-RT,PP-RC,LSF ΠΟΛΥΟΛΕΦΙΝΙΚΗΣ ΒΑΣΕΩΣ, PET,EVA,PVC H ΡΕ) ΑΝΕΥ ΡΑΦΗΣ, ΜΕ ΙΣΧΥΡΑ ΣΥΝΔΕΔΕΜΕΝΑ ΤΑ ΣΥΣΤΑΤΙΚΑ ΤΟΥ ΜΕΡΗ ΜΕΣΩ ΜΕΙΓΜΑΤΟΣ ΣΥΓΚΟΛΛΗΤΙΚΗΣ ΟΥΣΙΑΣ, ΚΑΤΑΛΛΗΛΟΣ ΓΙΑ ΕΓΚΑΤΑΣΤΑΣΕΙΣ ΥΓΙΕΙΝΗΣ, ΘΕΡΜΑΝΣΗΣ-ΚΛΙΜΑΤΙΣΜΟΥ ΚΑΙ ΑΕΡΙΩΝ (ΨΥΚΤΙΚΩΝ, ΚΑΥΣΙΜΩΝ ΚΑΙ ΦΥΣΙΚΟΥ ΑΕΡΙΟΥ) ΚΑΙ ΜΕΘΟΔΟΣ ΚΑΤΑΣΚΕΥΗΣ
CN101839375B (zh) * 2010-05-19 2011-11-30 王莘 法兰式衬塑复合钢管生产方法
CN204187150U (zh) * 2014-09-02 2015-03-04 吉林钰翎珑钢管钢构制造有限公司 承插连接式内衬塑料钢塑复合管
CN104324988B (zh) * 2014-10-17 2016-05-04 燕山大学 对称式四辊卷圆工艺方法及装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005047101A (ja) * 2003-07-31 2005-02-24 Jfe Steel Kk 内面ライニング鋼管及びその製造方法
CN101852314A (zh) * 2010-03-12 2010-10-06 浙江金洲管道科技股份有限公司 一种钢塑复合管
CN202302410U (zh) * 2011-11-02 2012-07-04 深圳市燃气集团股份有限公司 钢塑过渡管件
CN204647588U (zh) * 2015-03-27 2015-09-16 鹤山联塑实业发展有限公司 一种沟槽钢塑复合管及其构成的管路
CN204647587U (zh) * 2015-03-27 2015-09-16 鹤山联塑实业发展有限公司 一种外螺纹钢塑复合管及其构成的管路
CN106907530A (zh) * 2017-03-24 2017-06-30 肖和飞 一种内衬塑料管金属管及其制造方法
CN207229946U (zh) * 2017-09-25 2018-04-13 湖南振辉管业有限公司 一种端口增强环内衬塑料管承插式金属管

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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