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Ni-W-nano CeF3 composite coating for glass mould surface, electroplating method and electroplating solution

A composite coating and glass mold technology, which is applied in glass forming, glass pressing, electrolytic coating, etc., can solve the problems of defective products, achieve compact structure, low cost, and increase wear resistance

Inactive Publication Date: 2009-06-24
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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  • Ni-W-nano CeF3 composite coating for glass mould surface, electroplating method and electroplating solution
  • Ni-W-nano CeF3 composite coating for glass mould surface, electroplating method and electroplating solution
  • Ni-W-nano CeF3 composite coating for glass mould surface, electroplating method and electroplating solution

Examples

Experimental program
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Effect test

Embodiment 1

[0033] Electroplate Ni-W-nano-CeF on the surface of the glass mold stainless steel sample (30mm×30mm×5mm) 3 Composite coating to obtain sample 2#.

[0034] The electroplating process is:

[0035] Nano-CeF 3 Particles are dispersed: 2.5g nano-CeF 3 Put the particles in 15ml of acetone, ultrasonically disperse for 20 minutes, then dry, then add 20ml of deionized water, then add co-deposition accelerator ethylenediamine 0.4g / L, dispersant triton X-1000.3g / L, Sonicate for 1 hour. At the same time, 480ml plating solution (including Na 2 WO 4 2H 2 O 33g / L, Ni(NH 2 SO 3 ) 2 25g / L, (NH 4 ) 3 C 6 h 5 o 7 ·H 2O 72.5g / L) to the electroplating temperature of 65°C, add Triton X-100 0.5g / L as a dispersing aid, and stir and heat for 20 minutes. Then add the dispersed particles into the plating solution drop by drop, and at the same time ultrasonically stir the plating solution to form a 500ml suspension plating solution stably dispersed at 65°C.

[0036] Then carry out the ...

Embodiment 2

[0040] The electroplating process of concrete composite coating is the same as embodiment 1, and difference is,

[0041] Nano-CeF 3 Particle dispersion and preparation of electroplating solution: 10g nanometer CeF 3 Put the particles into 20ml of acetone, ultrasonically disperse for 15 minutes, then dry, then add 10ml of deionized water, then add the co-deposition accelerator cetyltrimethylammonium bromide 0.4g / L, the dispersant emulsifier TX -10 0.4g / L, ultrasonically dispersed for 2 hours. At the same time, 490ml of plating solution (including Na 2 WO 4 2H 2 O 33g / L, Ni(NH 2 SO 3 ) 2 25g / L, (NH 4 ) 3 C 6 h 5 o 7 ·H 2 O 72.5g / L) to the electroplating temperature of 80°C, add dispersant emulsifier TX-10 0.6g / L, stir and heat for 15 minutes. Then add the dispersed particles into the plating solution drop by drop, and at the same time ultrasonically stir the plating solution to form a 500ml suspension plating solution stably dispersed at 80°C.

[0042] The compos...

Embodiment 3

[0045] The electroplating process of concrete composite coating is the same as embodiment 1, and the difference is that the electroplating solution consists of: Na 2 WO 4 2H 2 O 36g / L, Ni(NH 2 SO 3 ) 2 22g / L, (NH 4 ) 3 C 6 h 5 o 7 ·H 2 O 60g / L, polyethylene polyamine 0.3g / L, emulsifier NP-101.2g / L, nano CeF 3 Particles 20g / L.

[0046] CeF in plating solution 3 The particle size of the powder is 35±5nm, the pH value of the electroplating solution is 7.2, and the current density of the plating is 6A / dm 2 , the temperature is 70° C., the time is 1 hour, and the stirring speed of the electroplating solution is 190 rpm. A sample 4# with a composite coating thickness of 25um was obtained.

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Abstract

The invention provides a Ni-W-nanometer CeF3 composite plating used on the surface of a glass die. The composite plate has a Ni-W basal body interlarded with nanometer CeF3 micro-particles. The invention also provides a method for electroplating the Ni-W-nanometer CeF3 composite plating onto the surface of the glass dire and the electrolyte thereof. Na tungstates and Ni sulphamates are taken as the main salts of the electrolyte; nanometer CeF3 powder is added to form the bath; and the Ni-W-nanometer CeF3 composite plating is obtained through controlling the content of the Na tungstates, the Ni sulphamates and the CeF3, the variety and content of codeposition promoters, the pH value and the current density, and stirring the bath. The composite plating has a simple process, little pollution, safety, low overall cost, high plating hardness, corrosion resistance, wear resistance and high temperature resistance, and good self lubrication performance. When the Ni-W-nanometer CeF3 composite plating is ground with fused glass, the Ni-W-nanometer CeF3 composite plating has a lower frictional coefficient, thereby bringing about good demoldability of the die.

Description

technical field [0001] The present invention relates to a kind of Ni-W-nano CeF used on the surface of glass mold 3 The invention relates to a composite coating, a surface electroplating method and an electrolytic solution, belonging to the technical field of metal material surface treatment. Background technique [0002] With the continuous improvement of people's living standards, a large number of high-end glass products such as heat-resistant glass tableware, microwave oven glass plates, architectural glass bricks, and glass handicrafts have entered people's lives. The rapid development of China's automobile industry has also led to a sharp increase in the demand for lamp glass, providing a good opportunity for the development of China's traditional glass industry. [0003] Glass mold is an important forming tool for glass products. The quality of the surface material of the mold not only affects the appearance and aesthetics of glass products, but also affects the prod...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B11/06C25D15/00
Inventor 路新春韩宝磊
Owner TSINGHUA UNIV
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