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CN108555529A - 钢塑转换管件的组装工艺 - Google Patents

钢塑转换管件的组装工艺 Download PDF

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Publication number
CN108555529A
CN108555529A CN201810015304.3A CN201810015304A CN108555529A CN 108555529 A CN108555529 A CN 108555529A CN 201810015304 A CN201810015304 A CN 201810015304A CN 108555529 A CN108555529 A CN 108555529A
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China
Prior art keywords
tubing
reducing
steel
pipe fitting
die tray
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Pending
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CN201810015304.3A
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English (en)
Inventor
王智
张海滨
郝剑麟
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Cangzhou Jia Chuang Gas Equipment Co Ltd
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Cangzhou Jia Chuang Gas Equipment Co Ltd
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Priority to CN201810015304.3A priority Critical patent/CN108555529A/zh
Publication of CN108555529A publication Critical patent/CN108555529A/zh
Pending legal-status Critical Current

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    • 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
    • B23P11/00—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for 
    • B23P11/02—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for  by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits
    • B23P11/022—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for  by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits by using pressure fluids
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/76—Measuring, controlling or regulating
    • B29C45/77—Measuring, controlling or regulating of velocity or pressure of moulding material
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/76—Measuring, controlling or regulating
    • B29C45/78—Measuring, controlling or regulating of temperature
    • 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
    • B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76—Measuring, controlling or regulating
    • B29C2945/76494—Controlled parameter
    • B29C2945/76498—Pressure
    • 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
    • B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76—Measuring, controlling or regulating
    • B29C2945/76494—Controlled parameter
    • B29C2945/76531—Temperature
    • 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
    • B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76—Measuring, controlling or regulating
    • B29C2945/76655—Location of control
    • B29C2945/76658—Injection unit
    • B29C2945/76668—Injection unit barrel
    • 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
    • B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76—Measuring, controlling or regulating
    • B29C2945/76655—Location of control
    • B29C2945/76732—Mould
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/04—Polymers of ethylene
    • B29K2023/06—PE, i.e. polyethylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00—Tubular articles
    • B29L2023/22—Tubes or pipes, i.e. rigid

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Branch Pipes, Bends, And The Like (AREA)

Abstract

钢塑转换管件的组装工艺，将聚乙烯直接注塑成变径的PE管材，将钢管部分车削，利用卧式液压机推动变径PE管材，利用反作用力将紧固压套从钢管端向PE端挤压，通过液压机的模具托盘实现管件连接部位长度的定位，完成组装。本发明工艺避免了大直径PE管材转换小直径钢管造成PE原料的浪费。省去了定位受力铁圈和变径圈切削的时间与重复焊接，节省了大量的人力物力和时间，极大的提高了生产效率，生产成本下降15％。同时免除焊接给管件性能造成一定的隐患和焊接中一定程度上的粉尘污染，也缓解了对技术人员的迫切需求。

Description

钢塑转换管件的组装工艺
技术领域
本发明涉及管件组装技术领域，具体涉及一种钢塑转换管件的组装工艺。
背景技术
钢塑转换管件是实现PE管路与钢制管路转换的产品，其中存在部分大直径PE管转换小直径钢管的变径管件。传统工艺生产的变径管件是在钢管部分实现变径的，而且还需要焊接连接部位的定位受力铁圈，构件多，重复焊接，要求较为苛刻，从而导致大量的消耗人力物力和生产时间，极大的浪费资源，影响生产效率。传统工艺中变径管件是需要大量焊接的工作的，焊接中产生焊瘤，易破坏密封槽与防拔脱槽的性能，而且焊接中产生的焊尘，一定程度上影响人体健康和环境污染。
发明内容
本发明提供了一种钢塑转换管件的组装工艺，以解决现有技术存在的在钢管部分实现变径构件多，重复焊接，费时费力以及焊接过程影响人体健康和环境污染的问题。
本发明解决其技术问题所采用的技术方案是：
一种钢塑转换管件的组装工艺，将聚乙烯直接注塑成变径的PE管材，将钢管部分车削，利用卧式液压机推动变径PE管材，利用反作用力将紧固压套从钢管端向PE端挤压，通过液压机的模具托盘实现管件连接部位长度的定位，完成组装，具体工艺步骤如下：
(1)将聚乙烯原料在注塑机中注塑成型得到变径PE管材，注塑压力控制在70～90MPa，注塑温度料筒温度控制在200～220℃之间，模具温度控制在40～50℃之间；
(2)将钢管前端车削形成若干防拔脱槽，车削后置于卧式液压机的模具托盘中；
(3)启动卧式液压机，卧式液压机的液压顶杆推动变径PE管材向模具托盘移动；
(4)将紧固压套套压在变径PE管材前端，紧固压套借助反作用力不断将变径PE管材内表面挤压在钢管前端外表面与防拔脱槽紧密贴合，挤压过程通过液压机的模具托盘实现管件连接部位长度的定位，完成组装。
本发明工艺避免了大直径PE管材转换小直径钢管造成PE原料的浪费。PE管与钢管结合部分的PE管壁厚相同情况下，直径缩小原尺寸的的16％～25％，平均每个钢塑转换管件的PE部分节省PE管材约为老工艺中PE管材的16％～20％。PE管材缩小，紧固压套随之缩小，缩小比列大致与PE管相同。新工艺最大的特点是省去了定位受力铁圈和变径圈切削的时间与重复焊接，节省了大量的人力物力和时间，极大的提高了生产效率，生产成本下降15％。同时免除焊接给管件性能造成一定的隐患和焊接中一定程度上的粉尘污染，也缓解了对技术人员的迫切需求。
附图说明
下面结合附图和实施例对本发明进一步说明。
图1是本发明钢塑复合管件组装过程示意图。
图中1卧式液压机、2液压顶杆、3紧固压套、4模具托盘、5PE管材、6钢管、7防拔脱槽。
具体实施方式
如图所示，一种钢塑转换管件的组装工艺，将聚乙烯直接注塑成变径的PE管材，将钢管部分车削，利用卧式液压机推动变径PE管材，利用反作用力将紧固压套从钢管端向PE端挤压，通过液压机的模具托盘实现管件连接部位长度的定位，完成组装，具体工艺步骤如下：
(1)将聚乙烯原料在注塑机中注塑成型得到变径PE管材，注塑压力控制在70～90MPa，注塑温度料筒温度控制在200～220℃之间，模具温度控制在40～50℃之间；
(2)将钢管前端车削形成若干防拔脱槽，车削后置于卧式液压机的模具托盘中；
(3)启动卧式液压机，卧式液压机的液压顶杆推动变径PE管材向模具托盘移动；
(4)将紧固压套套压在变径PE管材前端，紧固压套借助反作用力不断将变径PE管材内表面挤压在钢管前端外表面与防拔脱槽紧密贴合，挤压过程通过液压机的模具托盘实现管件连接部位长度的定位，完成组装。
本发明工艺避免了大直径PE管材转换小直径钢管造成PE原料的浪费。PE管与钢管结合部分的PE管壁厚相同情况下，直径缩小原尺寸的的16％～25％，平均每个钢塑转换管件的PE部分节省PE管材约为老工艺中PE管材的16％～20％。PE管材缩小，紧固压套随之缩小，缩小比列大致与PE管相同。新工艺最大的特点是省去了定位受力铁圈和变径圈切削的时间与重复焊接，节省了大量的人力物力和时间，极大的提高了生产效率，生产成本下降15％。同时免除焊接给管件性能造成一定的隐患和焊接中一定程度上的粉尘污染，也缓解了对技术人员的迫切需求。

Claims (1)

1.一种钢塑转换管件的组装工艺，其特征是将聚乙烯直接注塑成变径的PE管材，将钢管部分车削，利用卧式液压机推动变径PE管材，利用反作用力将紧固压套从钢管端向PE端挤压，通过液压机的模具托盘实现管件连接部位长度的定位，完成组装，具体工艺步骤如下：
(1)将聚乙烯原料在注塑机中注塑成型得到变径PE管材，注塑压力控制在70～90MPa，注塑温度料筒温度控制在200～220℃之间，模具温度控制在40～50℃之间；
(2)将钢管前端车削形成若干防拔脱槽，车削后置于卧式液压机的模具托盘中；
(3)启动卧式液压机，卧式液压机的液压顶杆推动变径PE管材向模具托盘移动；
(4)将紧固压套套压在变径PE管材前端，紧固压套借助反作用力不断将变径PE管材内表面挤压在钢管前端外表面与防拔脱槽紧密贴合，挤压过程通过液压机的模具托盘实现管件连接部位长度的定位，完成组装。
CN201810015304.3A 2018-01-08 2018-01-08 钢塑转换管件的组装工艺 Pending CN108555529A (zh)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1759980A (zh) * 2005-09-30 2006-04-19 中信重型机械公司 大直径磨机组合端盖的制造工艺
US20120160754A1 (en) * 2010-12-22 2012-06-28 Agilent Technologies, Inc. Dual material approach for high pressure bio inert flow path components
CN103270555A (zh) * 2010-10-13 2013-08-28 帝人株式会社 电线被覆用树脂组合物及使用其的绝缘电线
CN105114744A (zh) * 2015-09-13 2015-12-02 苏州市燃气设备阀门制造有限公司 钢塑转换连接结构

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1759980A (zh) * 2005-09-30 2006-04-19 中信重型机械公司 大直径磨机组合端盖的制造工艺
CN103270555A (zh) * 2010-10-13 2013-08-28 帝人株式会社 电线被覆用树脂组合物及使用其的绝缘电线
US20120160754A1 (en) * 2010-12-22 2012-06-28 Agilent Technologies, Inc. Dual material approach for high pressure bio inert flow path components
CN105114744A (zh) * 2015-09-13 2015-12-02 苏州市燃气设备阀门制造有限公司 钢塑转换连接结构

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