Title:
VACUUM ZINC INFILTRATION METHOD FOR METAL SURFACE TREATMENT AND PREPARATION METHOD
Document Type and Number:
WIPO Patent Application WO/2020/107135
Kind Code:
A1
Abstract:
A vacuum zinc infiltration method for metal surface treatment, comprising the following steps: performing oil removal, rust removal, water washing, and drying treatment on the surface of a steel product to be treated, placing the steel product together with an infiltration agent, a filler, and an adjuvant into a vacuum zinc infiltration furnace, performing sealing and vacuumizing to 10-9.65 kPa, then heating to 70-85°Ϲ, and maintaining a constant temperature for 10-15 min; and then vacuumizing to 1.05-0.56 Pa and heating to 400-450°Ϲ, maintaining a constant temperature for 150-170 min, cooling to below 100°Ϲ, discharging the steel product from the furnace, placing the discharged steel product into a water washing pool for washing, and drying the washed steel product. The zinc infiltration agent consists of the following components in proportion by mass: 80-95 of zinc powder, 2-6 of aluminum powder, 0.8-1.7 of gold powder, and 0.4-0.8 of nickel powder; the filler consists of the following component in proportion by mass: 50-60 of quartz sand, having a particle size of 40-80 meshes. By means of the technical solution above, the problem that a metal component treated with a metal surface treatment method in the prior art cannot satisfy the requirement of a user for the degree of corrosion resistance is solved.
Inventors:
LI YICHEN (CN)
Application Number:
PCT/CN2018/112994
Publication Date:
June 04, 2020
Filing Date:
November 27, 2018
Export Citation:
Assignee:
LI YICHEN (CN)
International Classes:
C23C10/36
Foreign References:
| CN101503800A | 2009-08-12 | |||
| CN104498868A | 2015-04-08 | |||
| CN107447189A | 2017-12-08 | |||
| CN1107899A | 1995-09-06 | |||
| CN105499108A | 2016-04-20 | |||
| RU2386723C2 | 2010-04-20 |
Other References:
CHEN XIAOLING: "Application of hot-dip galvanizing technology in switch equipment", JOURNAL OF DALIAN JIAOTONG UNIVERSITY, DALIAN JIAOTONG UNIVERSITY, vol. 30, no. 6, 1 December 2009 (2009-12-01), pages 105 - 106, XP055715707, ISSN: 1673-9590, DOI: 10.13291/j.cnki.djdxac.2009.06.003
Attorney, Agent or Firm:
SHIJIAZHUANG LINGHAO PATENT COMMISSIONING CO., LTD (CN)
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