Metal surface porcelainizing method

A metal surface, ceramic technology, applied in the direction of metal material coating process, etc., to achieve good anti-corrosion effect

Inactive Publication Date: 2011-05-11
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Can ceramicize the surface of structurally complex parts

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] 1. Prepare 10kg oil-based ceramic medium

[0024] (1) Add 500g of sodium oleate into 6kg of HL hydraulic oil with the grade N68, mechanically stir at room temperature, the stirring speed is 300r / min, and the stirring time is 2h to obtain a uniform suspension;

[0025] (2) 3.5kgSiO 2 The powder was added to the suspension, and mechanically stirred at room temperature at a stirring speed of 200 r / min for 3 hours to obtain an oil-based nano-ceramic medium.

[0026] 2. Ceramic surface of metal

[0027] Put the required metal surface ceramic workpiece in distilled water for ultrasonic cleaning, and clean for 30 minutes. Establish a hydraulic system consisting of pumps, direct-acting relief valves, throttle valves, oil tanks, ceramic treatment containers, constant temperature baths, thermometers, flow meters, and pressure gauges, and use the prepared oil-based nano-ceramic medium as the hydraulic system Put the cleaned workpiece into the ceramic processing container, run t...

Embodiment 2

[0029] 1. Prepare 10kg oil-based ceramic medium

[0030] (1) Add 500g of sodium oleate into 4.5kg of HL hydraulic oil with the grade N68, mechanically stir at room temperature, the stirring speed is 300r / min, and the stirring time is 2h to obtain a uniform suspension;

[0031] (2) 5kg nano-SiO 2 The particles were added to the suspension, and mechanically stirred at room temperature at a stirring speed of 300 r / min for 2 hours to obtain an oil-based nano-ceramic medium.

[0032] 2. Ceramic surface of metal

[0033] Put the required metal surface ceramic workpiece in distilled water for ultrasonic cleaning, and clean for 30 minutes. Control the working pressure of the ceramization treatment vessel to 5MPa, the flow rate to 12L / min, and the temperature of the ceramization treatment vessel to 80°C, let the hydraulic system work continuously for 15 hours, and then complete the ceramization of the metal surface. A layer of ceramic film is formed on the surface of the workpiece w...

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PUM

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Abstract

The invention relates to a metal surface porcelainizing method which comprises the following steps: sequentially adding 40-60% of mineral oil, 35-50% of nano additive and 5-10% of stabilizer, and mixing to obtain an oil-base nano porcelain medium; and carrying out metal surface porcelainizing on a workpiece to be subjected to metal surface porcelainizing by using the oil-base nano porcelain medium. A dynamic protective film can be formed on the metal surface treated by using the method, and has favorable functions of resisting corrosion, cavitation corrosion and abrasion. The method provided by the invention can be used for porcelainizing the surface of a part in a complex structure.

Description

1. Technical field [0001] The invention relates to a metal surface ceramicization method, which belongs to the technical field of chemical preparation. 2. Technical Background [0002] With the development of science and technology, the requirements for the surface of materials are becoming more and more stringent, especially the surface of metal needs to have good anti-wear and corrosion resistance in many occasions. Due to the high melting point, high strength and hardness of ceramic materials, good friction and wear resistance, high temperature chemical stability and thermal stability, a layer of ceramic materials can be coated on the metal surface to meet the needs of many occasions. [0003] Known metal surface ceramization treatment such as thermal spraying technology, which is to heat a certain wire or powdery material to a molten or semi-melted state through a heat source such as a flame, electric arc or plasma, and accelerate the formation of high-speed molten dropl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C22/02C23C22/77
Inventor 吴张永杨文勇张自华任伟莫子勇王娟贾伟亮王庆辉温成卓吴喜
Owner KUNMING UNIV OF SCI & TECH
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