Metal surface enamel layer, processing technology of interface thereof and use of technique

A metal surface and interface treatment technology, which is applied in the direction of metal layered products, metal material coating technology, coating, etc., can solve the problems of high sintering temperature, difficulty and short time of metal enamel sintering, and achieve high degree of bonding, High-temperature gas erosion resistance and the effect of expanding the scope of use

Inactive Publication Date: 2010-07-14
刘荣祥 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The sintering temperature of metal enamel is high and the time is short. Generally, it can only be comp...

Method used

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  • Metal surface enamel layer, processing technology of interface thereof and use of technique
  • Metal surface enamel layer, processing technology of interface thereof and use of technique
  • Metal surface enamel layer, processing technology of interface thereof and use of technique

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The interface treatment technology of metal surface enamel, which consists of: surface treatment, enamel treatment, the surface treatment is to use arc spraying or oxyacetylene spraying to treat the surface of metal material products, and the enamel treatment adopts electric induction heating method high temperature Sintering, the temperature range is 850°C--1100°C, and the sintering time is 3-8 minutes.

Embodiment 2

[0023] Arc spraying or oxyacetylene spraying is used to spray the surface of metal material products to obtain a metal coating with a certain roughness, and then enamel treatment is performed on the surface of the coating to form a metal matrix with a certain gradient - thermal spray coating --- Composite coating of enamel layer.

[0024] The metal substrate is processed by thermal spray coating and enamel layer to form a composite coating, which needs to be sintered at a high temperature of 850°C--1100°C. The sintering is completed by the electric induction heating process.

[0025] Among them, the metal enamel product is a cylinder with a diameter of 30mm-1000mm and a length of 1m-12m. And sintering is carried out in complex parts of various geometric shapes.

Embodiment 3

[0027] The enamel layer on the metal surface comprises: a thermal spray coating and an enamel layer. There is a thermal spray coating between the metal substrate and the enamel layer. The thermal spray coating includes a nickel base and an iron base.

[0028] The enamel layer on the metal surface, the nickel-based material includes Cr, B, Si, C, Fe, wherein the content of Cr is 15%, the content of B is 3.5%, and the content of Si content of 3.5%, the content of C is 0.8%, the content of Fe is 13%, the iron-based material includes Cr, Ni, Ti, C, and the content of Cr is 18% %, the Ni content is 8%, the Ti content is 0.8%, and the C content is 0.01%.

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Abstract

The invention relates to a metal surface enamel layer, processing technology of an interface thereof and the use of the technology. The metal enamel has a high sintering temperature and short time which is within 3 to 8 minutes; and the conventional sintering process has difficulties in realizing the metal enamel and requires high cost. The processing technology comprises surface processing and enamel processing, wherein in the surface processing, surfaces of metal material products are processed by adopting electric arc spraying or oxyacetylene spraying; and in the enamel processing, an electric induction heating method is adopted for high-temperature sintering at the temperature of between 850 and 1,100 DEG C for 3 to 8 minutes. The processing technology is applied to enamel products of the surfaces of metal materials.

Description

Technical field: [0001] The invention relates to an interface treatment technology of metal surface enamel. Background technique: [0002] At present, enamel tubes, enamel steel plates, enamel heat exchangers, radiators and other metal matrix enamel products have excellent wear resistance, corrosion resistance and high temperature resistance. However, the bonding strength of the enamel layer of these products is not high, and the enamel layer is easy to fall off under impact, which seriously affects the performance of the enamel layer. Therefore, improving the bonding strength between the enamel layer and the metal matrix material is the key to obtaining excellent performance of metal enamel products. [0003] At present, the sintering of enamel products on the surface of metal substrates is limited to small-sized and light-weight parts. Generally, coal, coke, and resistance furnace sintering process are adopted in the city. Overweight and overlength products cannot be si...

Claims

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Application Information

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IPC IPC(8): C23D5/04C23C4/06B32B15/04C23C4/129C23C4/131
Inventor 刘荣祥于新民
Owner 刘荣祥
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