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| Maintenance and Upgrades Practice of a 7300/1700 Second-hand Paper Machine |
| Received:March 31, 2026 Revised:April 22, 2026 |
| DOI：10.11980/j.issn.0254-508X.2026.07.023 |
| Key Words:second-hand paper machine gap former maintenance and upgrades |
| Author Name | Affiliation | Postcode | | Sun Chunlin* | 1Xianhe Co., Ltd., Quzhou, Zhejiang Province, 324022 | 324022 | | Zhao Jianhua | 1Xianhe Co., Ltd., Quzhou, Zhejiang Province, 324022 | 324022 | | Wen Haiping* | 2HMEI Machinery & Engineering Co., Ltd., Hangzhou, Zhejiang Province, 311121 | 311121 | | Li Rongzu | 2HMEI Machinery & Engineering Co., Ltd., Hangzhou, Zhejiang Province, 311121 | 311121 |
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| Abstract:This paper introduced maintenance and rebuild plans for the main sections of the 7300/1700 second-hand paper machine， including the headbox， gap former section， press section， drying section， sizing section， calender， reeler， and tail threading system， and elaborated on the ingenious structural designs. In addition， upgrades were carried out on the drying section and other local parts. After the upgrades， the paper machine ran well. The project provided a good reference for the relocation and modification of second-hand paper machines. |
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