CN103233215B - 螺栓表面发黑工艺 - Google Patents
螺栓表面发黑工艺 Download PDFInfo
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- CN103233215B CN103233215B CN201310171031.9A CN201310171031A CN103233215B CN 103233215 B CN103233215 B CN 103233215B CN 201310171031 A CN201310171031 A CN 201310171031A CN 103233215 B CN103233215 B CN 103233215B
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CN201310171031.9A CN103233215B (zh) | 2013-05-10 | 2013-05-10 | 螺栓表面发黑工艺 |
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CN201310171031.9A CN103233215B (zh) | 2013-05-10 | 2013-05-10 | 螺栓表面发黑工艺 |
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CN103233215A CN103233215A (zh) | 2013-08-07 |
CN103233215B true CN103233215B (zh) | 2015-08-12 |
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CN201310171031.9A Active CN103233215B (zh) | 2013-05-10 | 2013-05-10 | 螺栓表面发黑工艺 |
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Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN108103297B (zh) * | 2018-02-09 | 2019-06-21 | 艾普零件制造(苏州)股份有限公司 | 一种电动工具用高强度螺栓的热处理方法 |
CN114059055A (zh) * | 2021-11-12 | 2022-02-18 | 常州硕和机械有限公司 | 一种汽车空调压缩机表面防腐处理的方法 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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EP1712659A1 (en) * | 2005-04-11 | 2006-10-18 | Elisha Holding LLC | Corrosion resistant article and method of production thereof |
CN100509215C (zh) * | 2005-03-28 | 2009-07-08 | 重庆建设工业有限责任公司 | 粉末冶金工件的黑色磷化方法 |
CN101423924B (zh) * | 2008-05-21 | 2012-01-11 | 解奕炯 | 脱脂、除油、酸洗一步法热浸锌前处理工艺 |
Family Cites Families (1)
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DE102007051949B3 (de) * | 2007-10-31 | 2009-03-12 | Durferrit Gmbh | Verfahren zum Härten von Oberflächen von Werkstücken aus Edelstahl und Verwendung einer Salzschmelze zur Durchführung des Verfahrens |
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Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN100509215C (zh) * | 2005-03-28 | 2009-07-08 | 重庆建设工业有限责任公司 | 粉末冶金工件的黑色磷化方法 |
EP1712659A1 (en) * | 2005-04-11 | 2006-10-18 | Elisha Holding LLC | Corrosion resistant article and method of production thereof |
CN101423924B (zh) * | 2008-05-21 | 2012-01-11 | 解奕炯 | 脱脂、除油、酸洗一步法热浸锌前处理工艺 |
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CN103233215A (zh) | 2013-08-07 |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Surface blackening process of bolt Effective date of registration: 20191226 Granted publication date: 20150812 Pledgee: Bank of Jiangsu Co., Ltd. Jingjiang sub branch Pledgor: Jiangsu Yonghao High Strength Bolt Co., Ltd. Registration number: Y2019320000402 |
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PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20210723 Granted publication date: 20150812 Pledgee: Bank of Jiangsu Co.,Ltd. Jingjiang sub branch Pledgor: JIANGSU YONGHAO HIGH-STRENGTH BOLT Co.,Ltd. Registration number: Y2019320000402 |