Tin plate passivation solution and passivation process

A technology of tinplate and passivation solution, which is applied in the field of passivation and can solve problems such as environmental and personal hazards

Active Publication Date: 2019-10-25
SHOUGANG JINGTANG IRON & STEEL CO LTD
View PDF7 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to improve the oxidation resistance, corrosion resistance, anti-sulfurization and blackening properties of tinplate, tinplate is usually subjected to passivation treatment. At present, when passivation tr...

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

[0041] The tinplate passivation solution that present embodiment adopts, by mass concentration, component is as follows:

[0042] Fluotitanate ion 30g / L, fluozirconate ion 30g / L, permanganate ion 10g / L, hydrofluoric acid 2ml / L, phosphate 5g / L, organosilane 5g / L, and the rest is water.

[0043] In this embodiment, the above tinplate passivation solution is used, and the tinplate with passivation film is obtained through the following tinplate passivation process. Described tin plate passivation process comprises the steps:

[0044] Pretreat the tinned plate to be passivated to obtain the pretreated tinned plate;

[0045] Dilute the passivation solution as claimed in claim 1 to obtain a diluted passivation solution, use the diluted passivation solution to carry out passivation treatment to the pretreated tin-plated plate, and dry to obtain a tin-plated plate containing a passivation film ; During the passivation treatment, the diluted passivation solution is sprayed on the sur...

Embodiment 2

[0053] The tinplate passivation solution that present embodiment adopts, by mass concentration, component is as follows:

[0054] Fluotitanate ion 35g / L, fluozirconate ion 35g / L, permanganate ion 15g / L, hydrofluoric acid 2.5ml / L, phosphate 10g / L, organosilane 6.5g / L, and the rest is water.

[0055] In this embodiment, the above tinplate passivation solution is used, and the tinplate with passivation film is obtained through the following tinplate passivation process. Described tin plate passivation process comprises the steps:

[0056] Pretreat the tinned plate to be passivated to obtain the pretreated tinned plate;

[0057] Dilute the passivation solution as claimed in claim 1 to obtain a diluted passivation solution, use the diluted passivation solution to carry out passivation treatment to the pretreated tin-plated plate, and dry to obtain a tin-plated plate containing a passivation film ; During the passivation treatment, the diluted passivation solution is sprayed on th...

Embodiment 3

[0065] The tinplate passivation solution that present embodiment adopts, by mass concentration, component is as follows:

[0066] Fluotitanate ion 40g / L, fluozirconate ion 40g / L, permanganate ion 20g / L, hydrofluoric acid 3ml / L, phosphate 15g / L, organosilane 8g / L, and the rest is water.

[0067] In this embodiment, the above tinplate passivation solution is used, and the tinplate with passivation film is obtained through the following tinplate passivation process. Described tin plate passivation process comprises the steps:

[0068] Pretreat the tinned plate to be passivated to obtain the pretreated tinned plate;

[0069] Dilute the passivation solution as claimed in claim 1 to obtain a diluted passivation solution, use the diluted passivation solution to carry out passivation treatment to the pretreated tin-plated plate, and dry to obtain a tin-plated plate containing a passivation film ; During the passivation treatment, the diluted passivation solution is sprayed on the su...

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

No PUM Login to view more

Abstract

The invention discloses a tin plate passivation solution and a passivation process. The passivation solution comprises the following composition according to mass concentration: 30-40g/L of fluorotitanate ion, 30-40g/ L of fluorozirconate ion, 10-20g/L of permanganate ion, 2-3ml/L of hydrofluoric acid, 5-15g/L of phosphate, 5-8g/L of organosilane, and the rest of water.

Description

technical field [0001] The invention belongs to the field of passivation, and in particular relates to a passivation solution and a passivation process for tin-plated plates. Background technique [0002] Tin plate refers to a steel plate coated with a thin layer of metallic tin on the surface. In order to improve the oxidation resistance, corrosion resistance, anti-sulphurization and blackening properties of tinplate, tinplate is usually subjected to passivation treatment. At present, when passivation treatment is performed, the passivation solution is chromium containing hexavalent chromium However, the hexavalent chromium in chromate is a very toxic substance, which is extremely harmful to the environment and the human body. Therefore, developing a chromium-free passivation solution for the passivation of tin-plated plates has become an urgent problem in this field. Contents of the invention [0003] In view of the above problems, the present invention is proposed to ...

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
IPC IPC(8): C23C22/36C23C22/78C23C22/76
CPCC23C22/364C23C22/76C23C22/78
Inventor 孙宇万一群王振文朱防修王爱红吴明辉李永新胡建军潘东远李海旭方圆王雅晴尹显东方健
Owner SHOUGANG JINGTANG IRON & STEEL CO LTD
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