Mechanical zinc plating technique

A mechanical galvanizing and process technology, applied in the direction of pressure inorganic powder coating, metal material coating technology, liquid chemical plating, etc., can solve the problems of high energy consumption, easy corrosion, poor uniformity of galvanized layer thickness, etc., to achieve Effects of low energy loss, uniform thickness, and good corrosion resistance

Inactive Publication Date: 2013-10-02
NANTONG TIANTIAN MACHINE TOOL
View PDF2 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional mechanical galvanizing process has disadvantages such as high energy consumption, poor thickness uniformity of the galvanized layer, easy corrosion, and non-wear resistance.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A mechanical galvanizing process, comprising the steps of:

[0017] 1) Pre-plating treatment: degreasing, derusting, washing;

[0018] 2) Copper-plating primer: use the method of chemical immersion copper to plate a thin layer of copper on the surface of the workpiece, and wash it with water after plating;

[0019] 3) Excessive galvanized deposition: add zinc powder and special initiator into the drum, and the rolling time is 3 minutes;

[0020] 4) Galvanized deposition: Add zinc powder, special initiator, impact medium, and water into the drum, and the rolling time is 25 minutes;

[0021] 5) Surface passivation: put the workpiece into the passivation solution to form a passivation film;

[0022] 6) Post-processing: drying, drying, testing and acceptance.

[0023] The impact medium is glass microspheres with a diameter less than 0.5mm;

[0024] The passivation solution is made of chromium nitrate.

Embodiment 2

[0026] A mechanical galvanizing process, comprising the steps of:

[0027] 1) Pre-plating treatment: degreasing, derusting, washing;

[0028] 2) Copper-plating primer: use the method of chemical immersion copper to plate a thin layer of copper on the surface of the workpiece, and wash it with water after plating;

[0029] 3) Excessive galvanized deposition: add zinc powder and special initiator into the drum, and the rolling time is 6 minutes;

[0030] 4) Galvanized deposition: Add zinc powder, special initiator, impact medium, and water into the drum, and the rolling time is 45 minutes;

[0031] 5) Surface passivation: put the workpiece into the passivation solution to form a passivation film;

[0032] 6) Post-processing: drying, drying, testing and acceptance.

[0033] The impact medium is glass microspheres with a diameter less than 0.5mm;

[0034] The passivation solution is made of chromium nitrate.

Embodiment 3

[0036] A mechanical galvanizing process, comprising the steps of:

[0037] 1) Pre-plating treatment: degreasing, derusting, washing;

[0038] 2) Copper-plating primer: use the method of chemical immersion copper to plate a thin layer of copper on the surface of the workpiece, and wash it with water after plating;

[0039] 3) Excessive galvanized deposition: add zinc powder and special initiator into the drum, and the rolling time is 4 minutes;

[0040] 4) Galvanized deposition: Add zinc powder, special initiator, impact medium, and water into the drum, and the rolling time is 30 minutes;

[0041] 5) Surface passivation: put the workpiece into the passivation solution to form a passivation film;

[0042] 6) Post-processing: drying, drying, testing and acceptance.

[0043] The impact medium is glass microspheres with a diameter less than 0.5mm;

[0044] The passivation solution is made of chromium nitrate.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
diameteraaaaaaaaaa
Login to view more

Abstract

The invention discloses a mechanical zinc plating technique which comprises the following steps of: 1) preplating: removing oil and rust and washing; 2) copper plating for priming: plating a thin copper layer on the surface of a workpiece by adopting a chemical copper dipping method, and washing after plating is finished; 3) zinc plating and excessive precipitation: adding zinc powder and dedicated initiator into a roller, rolling for 3-6 minutes; 4) zinc plating and precipitation: adding zinc powder, dedicated initiator, impact media and water into the roller, and rolling for 25-45 minutes; 5) surface passivation: placing the workpiece in passivation solution to form a passivation film; 6) aftertreatment: spin-drying, drying, detecting and accepting. The impact media refers to glass microbeads with the diameter of less than 0.5mm; the passivation solution is chromic nitrate. By adopting the process technology, the energy loss is low, the zinc-plating coating is uniform in thickness, and has good corrosion resistance, wear resistance and stability.

Description

technical field [0001] The invention belongs to the technical field of surface coating, and in particular relates to a mechanical galvanizing process. Background technique [0002] Mechanical galvanizing is a kind of anti-corrosion coating that is different from electro-galvanizing, hot-dip galvanized iron, and Dacromet, and it is widely used in industrial production. The traditional mechanical galvanizing process has disadvantages such as high energy consumption, poor thickness uniformity of the galvanized layer, easy corrosion, and non-wear resistance. Contents of the invention [0003] Aiming at the deficiencies of the prior art, the invention provides a mechanical galvanizing process with low energy consumption and uniform galvanized layer thickness. [0004] Technical solution: a mechanical galvanizing process, comprising the following steps: [0005] 1) Pre-plating treatment: degreasing, derusting, washing; [0006] 2) Copper-plating primer: use the method of chem...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): C23C24/04C23C18/38C23C22/05C23F17/00
Inventor 许映泉
Owner NANTONG TIANTIAN MACHINE TOOL
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap