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Surface treatment technology for aluminum-magnesium alloy coupling for pump

An aluminum-magnesium alloy and surface treatment technology, applied in the coating and other directions, to achieve the effect of improving the molding speed and film quality, improving corrosion resistance and surface characteristics, and promoting the molding speed and film quality.

Active Publication Date: 2017-11-28
ANHUI TENGLONG PUMP VALVE MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With people's continuous pursuit of product performance, the corresponding processing technology and effect need to be continuously improved, and the effect of the existing organosilane treatment technology still needs to be further improved

Method used

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  • Surface treatment technology for aluminum-magnesium alloy coupling for pump
  • Surface treatment technology for aluminum-magnesium alloy coupling for pump

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A surface treatment process for an aluminum-magnesium alloy shaft coupling for a pump, comprising the following steps:

[0029] (1) Surface pretreatment:

[0030] a. First, immerse the aluminum-magnesium alloy coupling to be processed in deionized water, stir continuously to clean the dust and impurities on its surface, and remove it for later use;

[0031] b. Immerse the aluminum-magnesium alloy coupling treated in operation a in the degreasing solution for degreasing and degreasing treatment. During the treatment, heat and keep the temperature of the degreasing solution at 40°C. At the same time, apply ultrasonic waves with a frequency of 30kHz for treatment. After 15 minutes of treatment, take out the aluminum-magnesium alloy coupling, and finally rinse it with deionized water for later use;

[0032] c. Put the aluminum-magnesium alloy coupling treated in operation b into the sodium hydroxide solution for 6 minutes, take it out and then put it in the hydrochloric ac...

Embodiment 2

[0048] A surface treatment process for an aluminum-magnesium alloy shaft coupling for a pump, comprising the following steps:

[0049] (1) Surface pretreatment:

[0050] a. First, immerse the aluminum-magnesium alloy coupling to be processed in deionized water, stir continuously to clean the dust and impurities on its surface, and remove it for later use;

[0051] b. Immerse the aluminum-magnesium alloy coupling treated in operation a in the degreasing solution for degreasing and degreasing treatment. During the treatment, heat and keep the temperature of the degreasing solution at 43°C. At the same time, apply ultrasonic waves with a frequency of 32kHz for treatment. After 18 minutes of treatment, take out the aluminum-magnesium alloy coupling, and finally rinse it with deionized water for later use;

[0052] c. Put the aluminum-magnesium alloy coupling treated in operation b into the sodium hydroxide solution for 7 minutes, take it out and then put it in the hydrochloric ac...

Embodiment 3

[0068] A surface treatment process for an aluminum-magnesium alloy shaft coupling for a pump, comprising the following steps:

[0069] (1) Surface pretreatment:

[0070] a. First, immerse the aluminum-magnesium alloy coupling to be processed in deionized water, stir continuously to clean the dust and impurities on its surface, and remove it for later use;

[0071] b. Immerse the aluminum-magnesium alloy coupling treated in operation a in the degreasing solution for degreasing and degreasing treatment. During the treatment, heat and keep the temperature of the degreasing solution at 45°C. At the same time, apply ultrasonic waves with a frequency of 33kHz for treatment. After 20 minutes of treatment, take out the aluminum-magnesium alloy coupling, and finally rinse it with deionized water for later use;

[0072] c. First put the aluminum-magnesium alloy coupling treated in operation b into sodium hydroxide solution for 8 minutes, then take it out and then put it in hydrochloric...

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Abstract

The invention discloses a surface treatment technology for an aluminum-magnesium alloy coupling for a pump. The surface treatment technology comprises steps as follows: (1), surface pretreatment; (2), preparation of a modified silane treatment solution; (3), modification treatment. On the basis of characteristics of an aluminum-magnesium alloy, the surface treatment technology for the coupling is reasonably adjusted and improved, specifically modified nano-silica particles are added and introduced to a silane coupling agent in a specific organosilane treatment process, so that molding speed and film formation quality of a silane film on the surface of the coupling are increased and improved effectively respectively, self-corrosion current density of the aluminum-magnesium alloy coupling is reduced obviously, overall corrosion resistance and surface characteristics are effectively improved, the service life of the coupling is prolonged 5 times or more, use performance of the pump is greatly improved, and the popularization value is higher.

Description

technical field [0001] The invention belongs to the technical field of surface processing of materials for pumps, and in particular relates to a surface treatment process of an aluminum-magnesium alloy shaft coupling for pumps. Background technique [0002] Pump is one of the necessary mechanical equipment in people's life now, which provides convenience for daily production. Couplings are necessary parts in some pump bodies. According to the commonly used forms, they can be divided into claw-type elastic couplings, elastic pin couplings and diaphragm couplings. They mainly play the role of transmitting power and compensating pump The relative displacement between the shaft and the motor shaft can ease the impact, change the natural frequency of the shaft system and avoid harmful vibrations. Aluminum-magnesium alloys have been continuously developed and used because of their excellent comprehensive properties. Many existing couplings are made of aluminum-magnesium alloys, b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23G1/24C23G1/12C23G1/22C09D183/04C09D7/12
CPCC08K3/36C08K9/08C08K2201/011C09D4/00C23G1/125C23G1/22C23G1/24
Inventor 徐向远
Owner ANHUI TENGLONG PUMP VALVE MFG CO LTD
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