Surface treatment method for improving metal oxidation toughness

An oxidation toughness and surface treatment technology, applied in heat treatment baths, heat treatment equipment, metal processing equipment, etc., can solve problems such as easy oxidation, improve surface activity, enhance flow, stress required for cracks and critical crack propagation stress. Effect

Inactive Publication Date: 2021-02-05
HANGZHOU XIAOCHENG IND DESIGN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Chinese Patent Literature Publication No. discloses CN108115881A a metal surface treatment process, which comprises the following steps: after degreasing, rinsing, alkali etching, neutralization, rinsing, acid etching, and rinsing the metal parts to be treated, Under the voltage of 16-40V, anodize in the anodizing solution for 5-60 minutes to obtain anodized metal parts; treat the anodized metal parts in sodium carbonate solution for 0.5-5 minutes at 40-60 degrees Celsius , Continue to process continuously in the phosphate solution for 2 times, each time for 0.5-5 minutes, and get the treated metal parts after drying. This document provides a technical solution for the combination of metal and resin. Oxidation, at the same time, the method of improving its oxidation and toughness in this patent is not known, so further improvement treatment is required

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A kind of surface treatment method that improves metal oxidation toughness of the present embodiment, comprises the following steps:

[0029] Step 1, the initial treatment of metal parts: put the metal parts and activated abrasive into the reaction kettle, then add the ethanol medium, and then stir at a high speed of 1000r / min for 30 minutes, after the stirring is completed, then superchemical treatment for 10 minutes , you can;

[0030] Step 2, salt bath treatment: put the metal parts into the salt bath furnace, then add the salt bath solution, the temperature of the salt bath is 500°C, and the time of the salt bath is 3 minutes;

[0031] Step 3, heat treatment: heat the metal parts at 600°C for 10 minutes first, then send them into the quenching furnace for quenching treatment, and finally temper, and finally water-cool to room temperature;

[0032] Step 4, oxidation pretreatment: the metal parts are first treated with corona, and then treated with cold plasma, alter...

Embodiment 2

[0042] A kind of surface treatment method that improves metal oxidation toughness of the present embodiment, comprises the following steps:

[0043] Step 1, the initial treatment of metal parts: put the metal parts and the activated abrasive into the reaction kettle, then add the ethanol medium, and then carry out high-speed stirring at a speed of 1500r / min for 40 minutes, after the stirring is completed, then superchemical treatment for 20 minutes , you can;

[0044] Step 2, salt bath treatment: put the metal parts into the salt bath furnace, then add the salt bath liquid, the temperature of the salt bath is 600°C, and the time of the salt bath is 6 minutes;

[0045] Step 3, heat treatment: heat the metal parts at 700°C for 20 minutes first, then send them into the quenching furnace for quenching treatment, and finally temper, and finally water-cool to room temperature;

[0046] Step 4, oxidation pretreatment: the metal parts are first treated with corona, and then treated wit...

Embodiment 3

[0056] A kind of surface treatment method that improves metal oxidation toughness of the present embodiment, comprises the following steps:

[0057] Step 1, the initial treatment of metal parts: put the metal parts and activated abrasive into the reaction kettle, then add ethanol medium, and then stir at a high speed of 1250r / min for 35 minutes, after the stirring is completed, then superchemical treatment for 15 minutes , you can;

[0058] Step 2, salt bath treatment: put the metal parts into the salt bath furnace, then add the salt bath liquid, the temperature of the salt bath is 550°C, and the salt bath time is 4.5min.

[0059] Step 3, heat treatment: heat the metal parts at 650°C for 15 minutes first, then send them into the quenching furnace for quenching treatment, and finally temper, and finally water-cool to room temperature;

[0060] Step 4, oxidation pretreatment: the metal parts are first treated with corona, and then treated with cold plasma, alternately twice;

...

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Abstract

The invention discloses a surface treatment method for improving metal oxidation toughness. The method comprises the following steps that 1, primary treatment of a metal part is performed: the metal part and an activated grinding agent are added into a reaction kettle together, then an ethanol medium is added, then stirring is performed at a high rotation speed of 1,000-1,500 r/min for 30-40 minutes, and after the stirring is finished, and ultrasonic treatment is performed for 10-20 minutes so as to complete treatment. According to the method, the activated grinding agent is prepared firstly,bentonite serves as a matrix of the activated grinding agent, the bentonite is firstly activated in a calcining mode and then ground, so that particles of the bentonite are refined and finally compounded with rare earth substances, activity of the bentonite is further improved, meanwhile, a bentonite lamellar structure is utilized, so that the metal surface is conveniently pretreated, then a metalsurface layer is broken, and activity of the metal surface is promoted to be improved.

Description

technical field [0001] The invention relates to the technical field of metal surface treatment, in particular to a surface treatment method for improving metal oxidation toughness. Background technique [0002] During the processing, handling and use of metals, different degrees of oxidation and corrosion often occur, reducing the service life of metal materials or metal equipment. Therefore, it is necessary to treat the metal surface to increase its oxidation resistance, toughness and corrosion resistance. ,Extended service life. [0003] Chinese Patent Literature Publication No. discloses CN108115881A a metal surface treatment process, which comprises the following steps: after degreasing, rinsing, alkali etching, neutralization, rinsing, acid etching, and rinsing the metal parts to be treated, Under the voltage of 16-40V, anodize in the anodizing solution for 5-60 minutes to obtain anodized metal parts; treat the anodized metal parts in sodium carbonate solution for 0.5-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D1/46C21D1/18C21D1/04C21D1/26C21D6/04C21D7/04C23C8/00C23C26/00B24B31/10B24B31/14B24B27/033
CPCB24B27/033B24B31/10B24B31/14C21D1/04C21D1/18C21D1/26C21D1/46C21D6/04C21D7/04C23C8/00C23C26/00
Inventor 周孝银
Owner HANGZHOU XIAOCHENG IND DESIGN CO LTD
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