CN1388732A - 扬声器导磁碗制造方法 - Google Patents
扬声器导磁碗制造方法 Download PDFInfo
- Publication number
- CN1388732A CN1388732A CN 02119536 CN02119536A CN1388732A CN 1388732 A CN1388732 A CN 1388732A CN 02119536 CN02119536 CN 02119536 CN 02119536 A CN02119536 A CN 02119536A CN 1388732 A CN1388732 A CN 1388732A
- Authority
- CN
- China
- Prior art keywords
- die
- concave
- punch
- making process
- double
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Forging (AREA)
Abstract
Description
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 02119536 CN1202694C (zh) | 2002-05-20 | 2002-05-20 | 扬声器导磁碗制造方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 02119536 CN1202694C (zh) | 2002-05-20 | 2002-05-20 | 扬声器导磁碗制造方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1388732A true CN1388732A (zh) | 2003-01-01 |
CN1202694C CN1202694C (zh) | 2005-05-18 |
Family
ID=4744714
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 02119536 Expired - Fee Related CN1202694C (zh) | 2002-05-20 | 2002-05-20 | 扬声器导磁碗制造方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN1202694C (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105750412A (zh) * | 2014-12-16 | 2016-07-13 | 天津市华美金属制品有限公司 | 一种扬声器导磁碗一次引深成型装置 |
-
2002
- 2002-05-20 CN CN 02119536 patent/CN1202694C/zh not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105750412A (zh) * | 2014-12-16 | 2016-07-13 | 天津市华美金属制品有限公司 | 一种扬声器导磁碗一次引深成型装置 |
Also Published As
Publication number | Publication date |
---|---|
CN1202694C (zh) | 2005-05-18 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR101251043B1 (ko) | 모재 일체형 탭 플레이트 제조방법 및 그 장치 | |
CN1121285C (zh) | 金属薄板件冲压成型用拉延模具 | |
CN110252885A (zh) | 一种变薄翻边的成型方法及一种应用于变薄翻边成型的结构 | |
CN113913760A (zh) | 一种锅形靶材及其加工方法 | |
CN1062200C (zh) | 钢领毛坯的两工序冲压成形法及所用复合模具 | |
CN1202694C (zh) | 扬声器导磁碗制造方法 | |
CN108746339B (zh) | 一种生产豆浆机下盖的冷冲压方法 | |
JP2010188355A (ja) | 鍔付き短円筒状部品等の鍛造方法 | |
CN115740205A (zh) | 一种制造薄壁锥筒件的连续冲压方法 | |
CN101972927B (zh) | 在钢材上制深孔的快速加工方法 | |
CN213223960U (zh) | 一种轮辐成型模具 | |
CN212822177U (zh) | 一种压形模 | |
US7665213B2 (en) | Metal stamping process using a wire preform | |
CN1270842C (zh) | 液压阀门端罩冲压成型方法 | |
RU2220018C2 (ru) | Способ вытяжки и штамп для его осуществления | |
CN105817552A (zh) | 一种涨紧轮的成形工艺 | |
CN114309407A (zh) | 薄壁高筒环形gh4169合金锻件的制坯方法 | |
CN216857952U (zh) | 分体式压力机上冲头模具 | |
CN111151649A (zh) | 一种卡扣向上成型的方法 | |
RU2282516C2 (ru) | Способ изготовления корпусных деталей и штамп для его осуществления | |
CN2510195Y (zh) | 金属薄板件冲压成型用拉延模具 | |
CN218425125U (zh) | 一种减少厚板攻丝丝锥折断结构 | |
CN110814160A (zh) | 汽车三角摆臂上板冷冲压生产工艺 | |
JPH05329568A (ja) | 座金の製造方法 | |
CN219520295U (zh) | 一种双层敲落孔模具机构 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Ningbo Yunsheng Magnet Components Technology Co., Ltd. Assignor: Yunsheng (Group) Co., Ltd., Ningbo|Ningbo rhyme electromechanical Co., Ltd. Contract fulfillment period: 2005.7.1 to 2012.6.30 contract change Contract record no.: 2008330000118 Denomination of invention: Making process of magnetically conducting bowl for loudspeaker Granted publication date: 20050518 License type: Exclusive license Record date: 2008.7.7 |
|
LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENCE; TIME LIMIT OF IMPLEMENTING CONTACT: 2005.7.1 TO 2012.6.30 Name of requester: NINGBO YUNSHENG MAGNET COMPONENT TECHNOLOGY CO., Effective date: 20080707 |
|
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050518 Termination date: 20140520 |