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Composite coating used for surface of glass die and electroplating method thereof

A composite coating and glass mold technology, applied in coatings, electrolytic coatings, etc., can solve problems such as defective products, and achieve the effects of less pollution, low friction coefficient, and high temperature resistance and oxidation resistance.

Inactive Publication Date: 2010-06-09
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But there are the following problems: 1. The main component of the release agent is carbon. As the working time of the mold increases, carbon deposits will be formed on the side of the mold, and the carbon deposits will fall off on the glass to cause defective products; 2. Due to Coating the release agent is generally a manual operation, and the operator faces a working environment of 500-800 ° C, which is dangerous and random.

Method used

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  • Composite coating used for surface of glass die and electroplating method thereof
  • Composite coating used for surface of glass die and electroplating method thereof
  • Composite coating used for surface of glass die and electroplating method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Plating Ni-W-CeO on glass mold stainless steel samples (30mm×30mm×5mm) 2 Composite coating to obtain sample 2#. The composite coating is based on Ni-W and contains CeO 2 Microparticles, each component by weight percentage is as follows: Ni content is 51%, W content is 44.5%, CeO 2 The content is 4.5%, and the thickness of the obtained composite coating is 20 μm.

[0030] The above-mentioned electroplating method for the composite coating on the surface of the glass mould, the steps are as follows:

[0031] (1) To CeO first 2 Particles are dispersed: 2.5g CeO 2 Put the particles into 15ml of acetone, ultrasonically disperse for 20 minutes, then dry, then add 20ml of deionized water, and then add 0.2g of ethylenediamine as a co-deposition accelerator, 0.15g of triton X- 100, ultrasonically dispersed for 1 hour to obtain CeO 2 particle dispersion;

[0032] (2) 22.5gNa 2 WO 4 2H 2 O, 10gNiSO 4 ·6H 2 O, 36.25gC 6 h 8 o 7 ·H 2 O and 31.25ml NH 3 ·H 2 O was a...

Embodiment 2

[0038] Plating Ni-W-CeO on glass mold stainless steel samples (30mm×30mm×5mm) 2 Composite coating to obtain sample 3#. The composite coating is based on Ni-W and contains CeO 2 Particles, each component by weight percentage is as follows: Ni content is 49%, W content is 43%, CeO 2 The content is 8%, and the thickness of the obtained composite coating is 25 μm.

[0039] The above-mentioned electroplating method for the composite coating on the surface of the glass mould, the steps are as follows:

[0040] (1) To CeO first 2 Particles are dispersed: 5g CeO 2 Put the particles into 20ml of acetone, ultrasonically disperse for 15 minutes, then dry, then add 10ml of deionized water, after that, add 0.2g of cetyltrimethylammonium bromide as a co-deposition accelerator, 0.2g as a dispersion aid agent emulsifier TX-10, ultrasonically dispersed for 2 hours to obtain CeO 2 particle dispersion;

[0041] (2) 22.5gNa 2 WO 4 2H 2 O, 10gNiSO 4 ·6H 2 O, 36.25gC 6 h 8 o 7 ·H 2 ...

Embodiment 3

[0046] Plating Ni-W-La on a glass mold stainless steel sample (30mm×30mm×5mm) 2 o 3 Composite coating to obtain sample 4#. The composite coating is based on Ni-W and contains La 2 o 3 Microparticles, each component by weight percentage is as follows: Ni content is 52%, W content is 45%, La 2 o 3 The content is 3%, and the thickness of the obtained composite coating is 20 μm.

[0047] The above-mentioned electroplating method for the composite coating on the surface of the glass mould, the steps are as follows:

[0048] (1) First to La 2 o 3 Particles are dispersed: first 10g La 2 o 3 Put the particles into 15ml of acetone, ultrasonically disperse for 20 minutes, then dry, then add 20ml of deionized water, then add 0.15g of polyethylene polyamine as co-deposition accelerator, 0.2g of emulsifier NP- 10. Ultrasonic dispersion for 1 hour to obtain La 2 o 3 particle dispersion;

[0049] (2) 17.5gNa 2 WO 4 2H 2 O, 15gNiSO 4 ·6H 2 O, 32.5gC 6 h 8 o 7 ·H 2 O and ...

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Abstract

The invention discloses a composite coating used for the surface of a glass die and an electroplating method thereof, which belong to the technical field of surface treatment of metal materials. The composite coating uses Ni-W as matrix, contains rare-earth oxide particles, and comprises the following components in percentage by weight: 41 to 52 percent of Ni, 44 to 47 percent of W and 1 to 15 percent of rare-earth oxide. The method comprises the following steps: adding the rare-earth oxide particles into electroplating solution which uses sodium tungstate and nickel sulfate as main salts to form plating solution, and controlling the contents of the sodium tungstate, the nickel sulfate and the rare-earth oxide particles and the category and content of a co-deposition accelerator, pH value, current density and plating solution stirring to obtain the rare-earth oxide doped Ni-W composite coating. The composite coating has the advantages of simple process, little pollution, safety, low comprehensive cost, high coating hardness, abrasion resistance and high-temperature oxidation resistance and good self-lubricating performance, and has lower friction coefficient in opposite friction with the molten glass so that the die has good release performance.

Description

technical field [0001] The invention belongs to the technical field of metal material surface treatment, in particular to a composite coating for the surface of a glass mold and an electroplating method thereof. Background technique [0002] In recent years, with the rapid development of the glass bottle and container industry, the production of glass bottles and jars is developing towards high speed and light weight. Manufacturers, introducing foreign advanced bottle-making production lines, put forward higher requirements for the quality of glass molds, and the requirements for glass mold materials are also getting higher and higher. my country's glass mold manufacturers are mainly distributed in Jiangsu, Zhejiang, Shanghai, Tianjin and Guangdong. Its material is mainly ordinary gray cast iron, and progress in improving the material has been slow over the years. After the mold is used on the machine, maintenance is frequent and the service life is low, generally only 200...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C17/00C25D15/00
Inventor 路新春韩宝磊
Owner TSINGHUA UNIV
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