CN202479394U - 一种内螺纹芯头 - Google Patents

一种内螺纹芯头 Download PDF

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Publication number
CN202479394U
CN202479394U CN2012200926552U CN201220092655U CN202479394U CN 202479394 U CN202479394 U CN 202479394U CN 2012200926552 U CN2012200926552 U CN 2012200926552U CN 201220092655 U CN201220092655 U CN 201220092655U CN 202479394 U CN202479394 U CN 202479394U
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Expired - Fee Related
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CN2012200926552U
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English (en)
Inventor
罗欣
杨峰
杨国富
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Jiangxi Copper Corp
Jiangxi Copper Co Ltd
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Jiangxi Copper Co Ltd
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Priority to CN2012200926552U priority Critical patent/CN202479394U/zh
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Abstract

本实用新型提供一种内螺纹芯头,该内螺纹芯头的外圆柱面上均布有数条螺旋齿槽,齿槽横截面形状为三角形,齿槽角为15度至20度,内螺纹芯头轴向设有通孔。用本实用新型生产出来的内螺纹铜管具有结构简单,单位长内表面积大,热交换效率高等特点。

Description

一种内螺纹芯头
技术领域
本实用新型涉及一种内螺纹芯头,尤其与生产内螺纹铜管有关。
背景技术
目前用于生产内螺纹铜管的芯头,其外圆柱面上均布有数条螺旋齿槽,齿槽横截面形状为梯形,齿槽角为50度至55度,用现有芯头生产出来的内螺纹铜管单位长内表面积有限,热交换效率难以进一步提高。
发明内容
本实用新型的目的就是提供一种内螺纹芯头,用该内螺纹芯头生产出来的内螺纹铜管单位长内表面积比现有内螺纹铜管大。
本实用新型的目的是这样达到的:所述内螺纹芯头的外圆柱面上均布有数条螺旋齿槽,齿槽横截面形状为三角形,齿槽角为15度至20度,内螺纹芯头轴向设有通孔。
用本实用新型生产出来的内螺纹铜管具有结构简单,单位长内表面积大,热交换效率高等特点。
附图说明
图1为现有内螺纹芯头横截面的结构示意图。
图2为本实用新型横截面的结构示意图。
具体实施方式
对照图1可知,现有内螺纹芯头的外圆柱面上均布有数条螺旋齿槽1,齿槽1形状为梯形,齿槽角A为50度至55度,芯头轴向设有通孔2。
对照图2可知,本实用新型的内螺纹芯头3的外圆柱面上均布有数条螺旋齿槽4,齿槽4形状为三角形,齿槽角B为15度至20度,内螺纹芯头3轴向设有通孔5。

Claims (1)

1.一种内螺纹芯头,该内螺纹芯头(3)的外圆柱面上均布有数条螺旋齿槽(4),内螺纹芯头(3)轴向设有通孔(5),其特征是齿槽(4)横截面形状为三角形,齿槽角B为15度至20度。
CN2012200926552U 2012-03-13 2012-03-13 一种内螺纹芯头 Expired - Fee Related CN202479394U (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012200926552U CN202479394U (zh) 2012-03-13 2012-03-13 一种内螺纹芯头

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012200926552U CN202479394U (zh) 2012-03-13 2012-03-13 一种内螺纹芯头

Publications (1)

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CN202479394U true CN202479394U (zh) 2012-10-10

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CN2012200926552U Expired - Fee Related CN202479394U (zh) 2012-03-13 2012-03-13 一种内螺纹芯头

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104481997A (zh) * 2014-11-19 2015-04-01 广东龙丰精密铜管有限公司 一种基于pvd表面强化的内螺纹芯头及其制造方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104481997A (zh) * 2014-11-19 2015-04-01 广东龙丰精密铜管有限公司 一种基于pvd表面强化的内螺纹芯头及其制造方法

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Granted publication date: 20121010

Termination date: 20130313