Cast iron articles with protective decorative coatings

A cast iron product and coating technology, which is applied in the field of cast iron products, can solve the problems of poor protection and decoration performance, easy yellowing, etc., and achieve the effects of low cost, pollution reduction and cost reduction

Active Publication Date: 2015-12-02
HUZHOU BIAOLI ENERGY SAVING TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problems that the existing cast iron products are prone to yellowing after long-term use, and have poor protection and decoration performance, and provide a kind of cast iron with excellent comprehensive performance, convenient preparation, environmental protection and low production cost that can replace the existing electrochrome-plated cast iron Cast iron products with protective decorative coating

Method used

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  • Cast iron articles with protective decorative coatings

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Such as figure 1 As shown, the cast iron products with protective decorative coatings, on the base material of ductile iron 1 from bottom to top, are: bottom coating, chrome coating 4 and top coating, the bottom coating is epoxy group epoxy coating 2 and polybutadiene coating 3, the thickness is 8 μm and 2 μm, respectively, the chromium plating layer 4 is a sputtering chromium plating layer with a thickness of 0.5 μm, and the top coating is acrylic coating 5 with a thickness of 10 μm.

[0025] The production process of the product is as follows: cast iron pretreatment→spraying epoxy group epoxy resin, leveling→spraying polybutadiene, baking→sputtering chrome plating→spraying acrylic, baking.

Embodiment 2

[0027] Such as figure 1 As shown, the cast iron products with protective decorative coatings on the gray cast iron 1 base material from bottom to top are: base coating, chrome plating 4 and top coating, the base coating is epoxy group epoxy coating 2 and polybutadiene coating 3, with thicknesses of 10 μm and 5 μm, respectively. The chromium plating layer 4 is an ion sputtering hybrid chromium plating layer with a thickness of 1.0 μm. The top coating layer is an acrylic coating 5 with a thickness of 20 μm.

[0028] The production process of the product is as follows: cast iron pretreatment → spray epoxy epoxy resin, leveling → spray polybutadiene, baking → ion sputtering hybrid chrome plating → spray acrylic, baking.

Embodiment 3

[0030] Such as figure 1 As shown, the cast iron products with protective decorative coatings, from bottom to top on the vermicular graphite cast iron 1 base material, are: bottom coating, chrome coating 4 and top coating. The bottom coating is coated with epoxy group epoxy resin. The layer 2 and the polybutadiene coating 3 are composed of 8μm and 7μm in thickness. The chrome-plated layer 4 is an ion-plated chrome layer with a thickness of 1.0μm. The top coating is 5 layers of acrylic coating with a thickness of 15μm.

[0031] The production process of this product is as follows: cast iron pretreatment → spray epoxy epoxy resin, leveling → spray polybutadiene, baking → ion chromium plating → spray acrylic, baking.

[0032] The cast iron products with protective decorative coatings obtained in the above examples were tested for surface gloss, pencil hardness, coating adhesion, and salt spray resistance. The results are as follows:

[0033] (1) Surface gloss: bright white;

[0034] (2) ...

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Abstract

The invention discloses a cast iron product with protective and decorative coating and plating belonging to the field of novel material and surface technology. The product comprises a substrate, a chromium coating, a bottom coating and a surface coating. The substrate comprises a substrate, a bottom coating, a chromium coating and a surface coating orderly from bottom to top. The bottom coating is 10-15 microns in thickness, the chromium coating is 0.5-1.0 micron in thickness, and the surface coating is 10-20 microns in thickness. The bottom coating is composed of an epoxy resin coating and a polybutadiene coating. The surface coating is an acrylic acid coating. Since the cast iron product has a structure different from the present electroplated cast iron product, the cast iron product has low cost and environment friendliness in production, and excellent performance, and solves the problems that the present electroplated cast iron product is tended to yellow discolouration after long-term use and has poor protective and decorative functions.

Description

Technical field [0001] The invention relates to cast iron products, in particular to cast iron products with protective decorative coating. Background technique [0002] Cast iron materials are widely used, occupy a dominant position in casting alloys, and have always played an important role in the national economy. According to statistics, my country's cast iron output accounted for 81.7% of the total output of cast iron products in 1999. At present, with the intensification of market competition, cast iron as a traditional metal material is facing serious challenges in the quality, performance and price of the material. As we all know, cast iron is a complex, multi-element, and multi-phase structure material with great development potential. Its structure and properties can vary greatly depending on its solidification method. Due to the impact of energy, labor prices and environmental factors, the number of cast iron products in industrially developed countries will graduall...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B15/08B32B15/092B32B15/18
Inventor 秦洁王红伟姚毅汪强鲁旭亮吴丽丽
Owner HUZHOU BIAOLI ENERGY SAVING TECH CO LTD
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