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Method for cleaning surfaces of electric device and precise hydraulic part by dry ice

A technology for dry ice cleaning and electrical devices, applied in chemical instruments and methods, cleaning methods and utensils, etc., can solve the problems of reduced equipment assembly accuracy, low safety performance, and easy damage to equipment, etc., to reduce bump damage, easy operation, and economical effect of time

Active Publication Date: 2015-12-02
SHANXI JINDING GAOBAO DRILLING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems that the existing method for cleaning the surface of electrical components or precision instruments is easy to rust the equipment, easily damage the equipment, reduce the assembly accuracy of the equipment, and have low safety performance, the invention provides a dry ice cleaning method for cleaning electrical components and precision instruments. Method for the surface of hydraulic parts

Method used

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  • Method for cleaning surfaces of electric device and precise hydraulic part by dry ice
  • Method for cleaning surfaces of electric device and precise hydraulic part by dry ice
  • Method for cleaning surfaces of electric device and precise hydraulic part by dry ice

Examples

Experimental program
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Effect test

Embodiment 1

[0016] Embodiment 1: a kind of method of dry ice cleaning electric device and precision hydraulic parts surface, comprises the following steps:

[0017] (1) Pre-treatment of the workpiece: block the valve block, remove the oil on the surface of the workpiece; close the door of the electric control box;

[0018] (2) The dry ice blasting machine is equipped with solid spherical dry ice particles with a diameter of 2mm. The dry ice blasting machine is connected to a voltage of 220V and connected to a pressure of ≥0.8MPA. After turning on the switch, set the pressure of the air compressor to 0.4MPa and the flow rate to 3.5 cubic meters / minute, the distance between the nozzle and the surface to be cleaned is 25mm, press the button of the spray gun, aim at the surface of the object to be cleaned and spray, adjust the distance between the nozzle and the cleaning surface according to the difficulty of cleaning the dirt, adjust the nozzle and the cleaning surface according to the clea...

Embodiment 2

[0024] Embodiment 2: a kind of method for cleaning the surface of electrical parts and precision hydraulic parts with dry ice, solid spherical dry ice particles with a diameter of 3mm in the dry ice cleaning machine, the pressure of the air compressor is set to 0.9MPa, and the flow rate is: 0.5 cubic meters per minute. The amount of ice is 50kg / h, the injection pressure is 7bar, and the rest of the steps are the same as those described in Example 1.

Embodiment 3

[0025] Embodiment 3: A kind of method for cleaning the surface of electrical parts and precision hydraulic parts with dry ice, solid spherical dry ice particles with a diameter of 4mm are installed in the dry ice cleaning machine, the pressure of the air compressor is set to 1MPa, and the flow rate is: 2.5 cubic meters per minute. Amount is 30kg / h, and injection pressure is 7.5bar, and all the other steps are with the step described in embodiment 1.

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Abstract

The invention belongs to the technical field of precise instrument equipment; and in order to solve the problems of easy rusting of equipment, easy damage of equipment, reduction of assembly precision of equipment and lower safety in a traditional method of cleaning a surface of an electric device or a precise instrument, the invention provides a method for cleaning surfaces of an electric device and a precise hydraulic part by dry ice. Solid spherical dry ice particles with diameters of 2-4 mm are filled in a dry ice cleaning machine; the dry ice cleaning machine is connected with 220 V of voltage and pressure not smaller than 0.8 MPA; after a switch is opened, the pressure of an air compressor is set as 0.4-1 MPa, and the flow is set as 0.5-3.5 m3 / m; a distance from a gun nozzle to a surface to be cleaned is 25 mm; an angle between the nozzle and the cleaned surface is 45 degrees; a button of a spraying gun is pressed for spraying the surface of an object to be cleaned; the ice outlet quantity is 15-50 kg / h; the spraying pressure is 7-8 bar; and the lasting time is 20 s. Compared with a common paint and rust removing technology, the dry ice cleaning has such advantages as environmental protection, economy, high efficiency, long service life and safety.

Description

technical field [0001] The invention belongs to the technical field of precision instruments and equipment, and in particular relates to a method for cleaning the surfaces of electrical components and precision hydraulic components with dry ice. Background technique [0002] Common cleaning methods are high-pressure water cleaning and sandblasting cleaning, etc. The cleaning medium is water, sand, walnut shells, plastics and other abrasive media. The assembly accuracy and safety performance are relatively low. However, dry ice blasting has the characteristics of environmental protection, economy, long service life, safety and efficiency, and wide use. [0003] The invention patent with the application number 201310364061.1 discloses a method for cleaning metal molds, which includes the following steps: (1) Select a round bar-shaped dry ice with a length of 3~6mm and a diameter of 2.5~3.5mm, and add the dry ice to the dry ice cleaning machine (2) Put the nozzle of the dry i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B08B7/00
CPCB08B7/0007B08B7/0092
Inventor 李涛涛杜建荣栗林波李金彪都江沙李旭平李雁龙钱龙王泽峰
Owner SHANXI JINDING GAOBAO DRILLING CO LTD
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