CN101603614A - 锻造弯头的制备工艺 - Google Patents

锻造弯头的制备工艺 Download PDF

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Publication number
CN101603614A
CN101603614A CNA2009100544122A CN200910054412A CN101603614A CN 101603614 A CN101603614 A CN 101603614A CN A2009100544122 A CNA2009100544122 A CN A2009100544122A CN 200910054412 A CN200910054412 A CN 200910054412A CN 101603614 A CN101603614 A CN 101603614A
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Prior art keywords
elbow
forging
pipe
forge
wall
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CN101603614B (zh
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周菊明
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Shanghai Chang Qiang industrial Polytron Technologies Inc
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SHANGHAI CHANGQIANG POWER STATION FITTINGS CO Ltd
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Application filed by SHANGHAI CHANGQIANG POWER STATION FITTINGS CO Ltd filed Critical SHANGHAI CHANGQIANG POWER STATION FITTINGS CO Ltd
Priority to CN2009100544122A priority Critical patent/CN101603614B/zh
Publication of CN101603614A publication Critical patent/CN101603614A/zh
Priority to PCT/CN2010/001026 priority patent/WO2011003283A1/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
    • F16L43/00—Bends; Siphons
    • F16L43/001—Bends; Siphons made of metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00—Making machine elements
    • B21K1/14—Making machine elements fittings
    • B21K1/16—Making machine elements fittings parts of pipe or hose couplings

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Forging (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Branch Pipes, Bends, And The Like (AREA)

Abstract

本发明涉及弯头制备技术领域，尤其涉及一种锻造弯头的制备工艺，其特征在于：(1)锻管：将锻棒固定后打成锻管，锻管管道的偏心距为成品弯头壁厚的4％～6％；(2)弯制：将锻管热处理后，将由于偏心距而形成的锻管的壁薄的那部分半圆形管壁做为弯头的内环，壁厚的半圆形管壁作为弯头的外环，而将锻管弯制成弯头。本发明与现有技术相比，工艺简单，采用这种工艺还能弯制大型的弯头，并保证的弯头内、外环壁厚的相对均匀。

Description

锻造弯头的制备工艺
[技术领域]
本发明涉及弯头制备技术领域，尤其涉及一种锻造弯头的制备工艺。
[背景技术]
现在的弯头制造工艺主要是将对称中心距的锻管弯制成弯头，这样造成弯头外环的壁厚在弯制后变薄，而内环的壁厚弯制后变厚了，造成弯头内外环的壁厚不均匀，这样在实际应用中焊接到相关设备后，在壁薄处容易造成破裂，影响产品使用寿命。
[发明内容]
本发明为克服现有技术的不足，通过锻管时形成的偏心距，使锻管的一半壁较厚，另一半壁相对薄，弯制时壁厚的作为弯头的外环，壁薄的作为弯头的内环，这样保证弯制出来的弯头内、外环的壁厚相对均匀。
为实现上述目的，本发明设计的一种锻造弯头的制备工艺，其特征在于：(1)锻管：将锻棒固定后打成锻管，锻管管道的偏心距为最终成品弯头壁厚的4％～6％；(2)弯制：将锻管热处理后，将由于偏心距而形成的锻管的壁薄的那部分半圆形管壁做为弯头的内环，壁厚的半圆形管壁作为弯头的外环，而将锻管弯制成弯头。
锻管热处理后，锻管的内外表面还进行喷砂和修磨处理。
本发明与现有技术相比，工艺简单，采用这种工艺还能弯制大型的弯头，并保证的弯头内、外环壁厚的相对均匀。
[附图说明]
图1本发明实施例中的加工示意思图。
参见附图1，1为内环；2为外环。
[具体实施方式]
下面结合附图对本发明做进一步的描述。
锻管：将锻棒固定后打成锻管，锻管管道的偏心距为弯头成品壁厚的4％～6％；
弯制：根据锻管的材质，将锻管热处理后，一般加热至1050～1200℃，再根据需要将锻管内外表面进行喷砂和修磨处理，将由于偏心距而形成的锻管的壁薄的那部分半圆形管壁做为弯头的内环，壁厚的半圆形管壁作为弯头的外环，而将锻管弯制成弯头，这样弯制出来的弯头壁厚相对比较均匀，这样后续只要通过稍许打磨等精加工处理即可得到均匀壁厚的弯头，另外可根据产品设计需要对弯制好的弯头进行坡口、倒角等后续精加工处理。

Claims (2)

1、一种锻造弯头的制备工艺，其特征在于：(1)锻管：将锻棒固定后打成锻管，锻管管道的偏心距为成品弯头壁厚的4％～6％；(2)弯制：将锻管热处理后，将由于偏心距而形成的锻管的壁薄的那部分半圆形管壁做为弯头的内环，壁厚的半圆形管壁作为弯头的外环，而将锻管弯制成弯头。
2、如权利要求1所述的一种锻造弯头的制备工艺，其特征在于：锻管热处理后，锻管的内外表面还进行喷砂和修磨处理。
CN2009100544122A 2009-07-06 2009-07-06 锻造弯头的制备工艺 Active CN101603614B (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN2009100544122A CN101603614B (zh) 2009-07-06 2009-07-06 锻造弯头的制备工艺
PCT/CN2010/001026 WO2011003283A1 (zh) 2009-07-06 2010-07-09 锻造弯头的制备工艺

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009100544122A CN101603614B (zh) 2009-07-06 2009-07-06 锻造弯头的制备工艺

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CN101603614A true CN101603614A (zh) 2009-12-16
CN101603614B CN101603614B (zh) 2010-12-01

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WO (1) WO2011003283A1 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011003283A1 (zh) * 2009-07-06 2011-01-13 上海昌强电站配件有限公司 锻造弯头的制备工艺
CN103231224A (zh) * 2013-04-17 2013-08-07 二重集团（德阳）重型装备股份有限公司 直管管坯内壁堆焊后成型90°弯管的方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115283975B (zh) * 2022-07-13 2023-06-23 珠海格力电器股份有限公司 自动拍打装置及拍打方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1960557A (en) * 1931-04-22 1934-05-29 Tube Turns Inc Pipe fitting
US2066775A (en) * 1935-07-16 1937-01-05 Tube Turns Inc Pipe fitting
JPH01238788A (ja) * 1988-03-16 1989-09-22 Mitsubishi Heavy Ind Ltd パイプ
CN1255595A (zh) * 1998-11-29 2000-06-07 山东日照发电厂 耐冲刷弯头
KR100338020B1 (ko) * 1999-09-15 2002-05-24 정재순 진동하중에 의한 엘보제조장치
DE102007030942A1 (de) * 2007-07-03 2009-01-08 J. Eberspächer GmbH & Co. KG Gebautes Metallrohr
CN101603614B (zh) * 2009-07-06 2010-12-01 上海昌强电站配件有限公司 锻造弯头的制备工艺

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011003283A1 (zh) * 2009-07-06 2011-01-13 上海昌强电站配件有限公司 锻造弯头的制备工艺
CN103231224A (zh) * 2013-04-17 2013-08-07 二重集团（德阳）重型装备股份有限公司 直管管坯内壁堆焊后成型90°弯管的方法
CN103231224B (zh) * 2013-04-17 2015-09-23 二重集团（德阳）重型装备股份有限公司 直管管坯内壁堆焊后成型90°弯管的方法

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Address after: Songjiang District Shanghai Yexie town 201608 Huayuan Road South

Patentee after: Shanghai Chang Qiang industrial Polytron Technologies Inc

Address before: Songjiang District Shanghai Yexie town 201608 Huayuan Road South

Patentee before: Shanghai Changqiang Power Station Fittings Co.,Ltd.