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Surface treatment method of tin-plated steel plate

A tin-plated steel plate and surface treatment technology, applied in the field of steel parts, can solve the environmental hazards of waste gas and waste liquid, etc., and achieve the effects of excellent mechanical properties and excellent stability

Inactive Publication Date: 2011-04-13
NINGBO XIANGBO MACHINE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, it is necessary to use an aqueous solution containing hexavalent chromium oxide when forming a chromate film on the surface of tin-plated steel, and hexavalent chromium is a strong carcinogen. great harm

Method used

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  • Surface treatment method of tin-plated steel plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] using H 3 PO 4 and Sn 4 The 50×50mm tinned steel plate electrolytically treated with Cl solution is used as the tinned steel plate substrate, and the tin film thickness is about 5 μm; first, the tinned steel plate substrate is placed in the sputtering treatment chamber, and the radio frequency magnetron Sputtering, where the sputtering parameters are target palladium diameter 0.1m, pure argon sputtering atmosphere 0.3Pa, RF power 100W, to obtain about 0.7μm coating; then put the tinned steel plate coated with palladium in the muffle furnace, Heat treatment is carried out under the temperature of 250 ℃, and treatment time is respectively 10min, 30min, 60min, obtains the steel part after the present invention is processed; The steel part after processing is carried out stability test, test result shows and does not carry out heat treatment steel part Parts are compared; the processed steel parts are tested for hardness with a Vickers hardness tester, and the test result...

Embodiment 2

[0017] using H 3 PO 4 and Sn 4 The 50×50mm tinned steel plate electrolytically treated with Cl solution is used as the tinned steel plate substrate, and the tin film thickness is about 5 μm; first, the tinned steel plate substrate is placed in the sputtering treatment chamber, and the radio frequency magnetron Sputtering, where the sputtering parameters are target palladium diameter 0.1m, pure argon sputtering atmosphere 0.3Pa, RF power 100W, to obtain about 0.7μm coating; then put the tinned steel plate coated with palladium in the muffle furnace, Heat treatment is carried out under the temperature of 300 ℃, and treatment time is respectively 10min, 30min, 60min, obtains the steel part after the present invention process; The steel part after treatment is carried out stability test, test result shows and does not carry out heat treatment steel part Parts are compared; the processed steel parts are tested for hardness with a Vickers hardness tester, and the test results are ...

Embodiment 3

[0019] using H 3 PO 4 and Sn 4 The 50×50mm tinned steel plate electrolytically treated with Cl solution is used as the tinned steel plate substrate, and the tin film thickness is about 5 μm; first, the tinned steel plate substrate is placed in the sputtering treatment chamber, and the radio frequency magnetron Sputtering, where the sputtering parameters are target palladium diameter 0.1m, pure argon sputtering atmosphere 0.3Pa, RF power 100W, to obtain about 0.7μm coating; then put the tinned steel plate coated with palladium in the muffle furnace, Heat treatment is carried out under the temperature of 400 ℃, and treatment time is respectively 10min, 30min, 60min, obtains the steel part after the present invention process; The steel part after treatment is carried out stability test, and test result shows that the steel part that does not carry out heat treatment Parts are compared; the processed steel parts are tested for hardness with a Vickers hardness tester, and the tes...

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Abstract

The invention relates to a surface treatment method of an environment-friendly tin-plated steel plate and a steel part made by the method. The surface treatment method comprises the following steps of sputtering one layer of palladium film on the surface of a tin-plated steel plate and carrying out heating treatment. The tin-plated steel plate treated by the method not only has excellent stability, strong mechanical properties and excellent antibacterial properties, but also requires no hexavalent-chromium containing treating liquid strictly restricted on account of environment protection. The method can be broadly used in the field of containers, such as food cans, drink cans, etc.

Description

technical field [0001] The invention relates to a surface treatment method of a tinned steel plate, in particular to a surface treatment method of sputtering a layer of palladium film on the surface of the tinned steel plate and performing heat treatment, and the steel parts produced by the method. Background technique [0002] Tin-plated steel sheets are widely used in containers such as food cans and beverage cans. The tin-plated steel sheets used in large quantities are usually dipped and electrolyzed in an aqueous solution containing hexavalent chromium compounds such as dichromic acid, or directly coated with an aqueous solution of hexavalent chromium compounds on the surface, so that the coating of the steel plate A chromate film forms on the surface. The chromate film formed on the surface of the steel sheet in this way prevents oxidation of the tin-plated surface during long-term storage and suppresses yellowing of the appearance. And when used after painting, sinc...

Claims

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Application Information

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IPC IPC(8): C23C28/00
Inventor 谢旭波
Owner NINGBO XIANGBO MACHINE
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