CN106540979A - 棒材挤出型模具 - Google Patents

棒材挤出型模具 Download PDF

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Publication number
CN106540979A
CN106540979A CN201611179521.3A CN201611179521A CN106540979A CN 106540979 A CN106540979 A CN 106540979A CN 201611179521 A CN201611179521 A CN 201611179521A CN 106540979 A CN106540979 A CN 106540979A
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pod apertures
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CN201611179521.3A
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English (en)
Inventor
唐全林
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Suzhou Tangshi Machinery Manufacturing Co Ltd
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Suzhou Tangshi Machinery Manufacturing Co Ltd
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Priority to CN201611179521.3A priority Critical patent/CN106540979A/zh
Publication of CN106540979A publication Critical patent/CN106540979A/zh
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C25/00—Profiling tools for metal extruding
    • B21C25/02—Dies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/02—Making uncoated products
    • B21C23/04—Making uncoated products by direct extrusion
    • B21C23/08—Making wire, bars, tubes
    • B21C23/085—Making tubes

Abstract

本发明涉及一种棒材挤出型模具，包括模子、模垫和导流板；所述模垫上设有挤压筒，所述导流板上设有导流孔，所述导流孔与挤压筒偏心设置，所述导流孔为阶梯式导流孔，所述阶梯式导流孔离模垫越远则其开口越大，所述挤压筒的周围设有循环冷却水通道。该模具可以在挤压制造铝合金棒材时避免出现粗晶。

Description

棒材挤出型模具
技术领域
本发明涉及一种棒材挤出型模具，属于机械制造处理技术领域。
背景技术
传统的铝合金棒材生产方式是采用正挤压的中心挤压方式，即型孔处于模具的中心并与挤压筒的中心相重合。采用这种方式模具制造简单，挤压变形程度小，挤压力低，不足之处是型材的晶粒度大，容易出现粗晶现象，所获得的力学性能及导电率较低。
发明内容
本发明要解决技术问题是：克服上述技术的缺点，提供一种挤压制造铝合金棒材时避免出现粗晶的模具。
为了解决上述技术问题，本发明提出的技术方案是：一种棒材挤出型模具，包括模子、模垫和导流板，所述模垫上设有挤压筒，所述导流板上设有导流孔，所述导流孔与挤压筒偏心设置，所述导流孔为阶梯式导流孔，所述阶梯式导流孔离模垫越远则其开口越大，所述挤压筒的周围设有循环冷却水通道。
优选的，所述阶梯式导流孔的阶梯的级数为2～5级。
本发明带来的有益效果是：本发明中导流板上的导流孔或导流室采用阶梯形式，导流板的厚度可取得相对较大一些，阶梯的级数可以2～5级，相邻阶梯孔径相差4～10mm，这样可以增加挤压成形过程中的刚性区，增加变形时的阻力，使金属经过多次的预变形，提高挤压力。在挤压成形过程中，压应力能降低组织的扩散速度，压应力越大则扩散速度越小从而抑制晶粒的长大，进而获得良好的表面质量和致密的内部组织，避免出现粗晶。
附图说明
图1是本发明的结构示意图。
具体实施方式
实施例
本实施例的棒材挤出型模具，包括模子1、模垫2和导流板3，所述模垫2上设有挤压筒5，所述导流板3上设有导流孔4，所述导流孔3与挤压筒5偏心设置，所述导流孔4为阶梯式导流孔，所述阶梯式导流孔离模垫2越远则其开口越大，所述挤压筒的周围设有循环冷却水通道。
优选的，所述阶梯式导流孔的阶梯的级数为2～5级。
本发明不局限于上述实施例所述的具体技术方案，除上述实施例外，本发明还可以有其他实施方式。凡采用等同替换形成的技术方案，均为本发明要求的保护范围。

Claims (2)

1.一种棒材挤出型模具，包括模子、模垫和导流板；其特征在于：所述模垫上设有挤压筒，所述导流板上设有导流孔，所述导流孔与挤压筒偏心设置，所述导流孔为阶梯式导流孔，所述阶梯式导流孔离模垫越远则其开口越大，所述挤压筒的周围设有循环冷却水通道。
2.根据权利要求1所述的棒材挤出型模具，其特征在于：所述阶梯式导流孔的阶梯的级数为2～5级。
CN201611179521.3A 2016-12-19 2016-12-19 棒材挤出型模具 Pending CN106540979A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201611179521.3A CN106540979A (zh) 2016-12-19 2016-12-19 棒材挤出型模具

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201611179521.3A CN106540979A (zh) 2016-12-19 2016-12-19 棒材挤出型模具

Publications (1)

Publication Number Publication Date
CN106540979A true CN106540979A (zh) 2017-03-29

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CN201611179521.3A Pending CN106540979A (zh) 2016-12-19 2016-12-19 棒材挤出型模具

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CN (1) CN106540979A (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109465306A (zh) * 2018-12-26 2019-03-15 西南铝业（集团）有限责任公司 一种模垫的装配方式及模具

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1430965A2 (en) * 2002-11-01 2004-06-23 Sumitomo Light Metal Industries, Ltd. Method of manufacturing high-strength aluminium alloy extruded product excelling in corrosion resistance and stress corrosion cracking resistance
CN2915309Y (zh) * 2006-03-17 2007-06-27 江阴市江顺模具有限公司 插齿片散热器铝型材的热挤压模具
JP2011255418A (ja) * 2010-05-12 2011-12-22 Showa Denko Kk 半中空形材製造用押出ダイス
CN103506422A (zh) * 2013-09-17 2014-01-15 福建省南平铝业有限公司 一种可调节铝合金挤压变形组织的模具及其制造方法
CN203991724U (zh) * 2014-07-04 2014-12-10 广州科技职业技术学院 铝合金棒材生产模具

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1430965A2 (en) * 2002-11-01 2004-06-23 Sumitomo Light Metal Industries, Ltd. Method of manufacturing high-strength aluminium alloy extruded product excelling in corrosion resistance and stress corrosion cracking resistance
CN2915309Y (zh) * 2006-03-17 2007-06-27 江阴市江顺模具有限公司 插齿片散热器铝型材的热挤压模具
JP2011255418A (ja) * 2010-05-12 2011-12-22 Showa Denko Kk 半中空形材製造用押出ダイス
CN103506422A (zh) * 2013-09-17 2014-01-15 福建省南平铝业有限公司 一种可调节铝合金挤压变形组织的模具及其制造方法
CN203991724U (zh) * 2014-07-04 2014-12-10 广州科技职业技术学院 铝合金棒材生产模具

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
邓汝荣等: "铝合金挤压棒材的模具结构试验与设计", 《有色金属加工》 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109465306A (zh) * 2018-12-26 2019-03-15 西南铝业（集团）有限责任公司 一种模垫的装配方式及模具

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