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HIGH-PRECISION WASHING PROCESS OF GOLD AND SILVER COIN BILLET CAKE
| Application Number |
CN2017085358 |
| Publication Number |
2017/198232 |
| Status |
In Force |
| Filing Date |
2017-05-22 |
| Publication Date |
2017-11-23 |
| Owner |
SHENZHEN GUOBAO MINT (China)
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| Inventor |
- Yi, Wenjun
- Wang, Yingjiang
- Wang, Huaizhong
- Wu, Wei
- Wang, Aiping
- Wu, Qiong
- Zhao, Kai
- Dong, Jianhao
- Wang, Xiaoyan
- Li, Xiaonan
- Zheng, Dabin
- Yin, Zejun
- Li, Xiaojun
- Ding, Mingyao
- Ding, Yuqing
- Li, Hui
- Hu, Jun
- Kuang, Wenxuan
- Liu, Zhanbo
- Min, Yuanyuan
- Zhang, Xinxin
- He, Pingjun
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Abstract
Disclosed is a high-precision washing process of a gold and silver coin billet cake, involving the field of surface cleaning of workpieces, including the steps arranged sequentially: emulsification, vacuum water shearing, hydrocarbon washing, vacuum bath-washing and drying and gas-phase washing. The high-precision washing of the gold and silver coin billet cake can be realized by means of controlling the vacuum degree, the temperature of a detergent, the ultrasonic wave frequency and the washing time in each step. In the present invention, the pollutant treatment is thorough, the yield is high, the automation degree in each step is high, and an environmentally friendly detergent is used in each step, thereby meeting the environmentally friendly requirements.
IPC Classes ?
- C23G 5/06 - Cleaning or de-greasing metallic material by other methodsApparatus for cleaning or de-greasing metallic material with organic solvents using emulsions
- C23G 5/024 - Cleaning or de-greasing metallic material by other methodsApparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents containing hydrocarbons
- B08B 5/02 - Cleaning by the force of jets, e.g. blowing-out cavities
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