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Vacuum pressure impregnation device with function of recovering mist of impregnating agent and using method

A technology of vacuum pressure impregnation and impregnating agent, applied in the field of engine processing, can solve the problems of impregnating agent waste, impregnating agent mist pollution, etc., and achieve the effect of solving pollution and solving impregnating agent waste

Active Publication Date: 2017-03-29
CHONGQING CHANGAN AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The purpose of the present invention is to solve the problems of impregnant mist pollution and impregnant waste

Method used

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  • Vacuum pressure impregnation device with function of recovering mist of impregnating agent and using method
  • Vacuum pressure impregnation device with function of recovering mist of impregnating agent and using method
  • Vacuum pressure impregnation device with function of recovering mist of impregnating agent and using method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Referring to Fig. 3, the vacuum pressure impregnation device with the function of recovering the mist of the impregnating agent includes an impregnating tank, an air pressure conversion loop system and an impregnating agent recovery part; an impregnating basket 18 is arranged in the impregnating tank 10; The air pressure conversion circuit system is connected to the soaking tank 10 through the main pipeline 23, and the first gas circuit switching valve 11 is set on the main pipeline 23, and the first gas circuit switching valve 11 controls the compressed air pipeline 12, the normal pressure air pipeline 15 and the intake air of the vacuum pump. Pipeline 21; the end of the outlet pipe 22 of the vacuum pump is provided with a second gas path switching valve 14, and the second gas path switching valve 14 controls the outlet gas of the vacuum pump 13 to enter the normal pressure air pipeline or the impregnating agent recovery part; the impregnating agent recovery part It inc...

Embodiment 2

[0028] Example 2 The specific operation steps for eliminating fog are shown in Figure 2.

[0029] Step 1. Vacuum pumping for material feeding: switch the first gas path switching valve 11 to vacuumize, switch the second gas path switching valve 14 to connect the gas storage tank 16 when the pressure in the tank is less than 0.02 bar.

[0030] Step 2. Pressurized impregnation: the impregnating basket 18 is lowered and immersed in the impregnating liquid, the first air circuit switching valve 11 is connected, and the compressed air pipeline 12 is connected.

[0031] Step 3. Vacuumize and eliminate mist Switch the first gas circuit switching valve 11 to vacuumize, switch the second gas circuit switching valve 14 to connect the gas storage tank 16, stop when the pressure in the tank is less than 0.8bar.

[0032] Step 4. Return to normal pressure blanking: switch the first air circuit switching valve 11, connect the normal pressure air pipeline 15, stop when the normal pressure is ...

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Abstract

The invention relates to the technical field of engine machining, particularly to a vacuum pressure impregnation mist device with a recovery function and a using method. According to the technical scheme, the vacuum pressure impregnation mist device with the recovery function comprises an impregnation tank, a pneumatic conversion system and an impregnant recovery part. Mist is liquefied by a condensing tube designed in a gas storage box of the impregnant recovery part and recovered to the impregnation tank through an impregnation liquid recovery pipeline. The device effectively solves the problems of impregnant mist pollution and impregnant waste. The invention further provides a method for recovering the mist by using the device.

Description

technical field [0001] The invention relates to the technical field of engine processing, in particular to a vacuum pressure impregnation device with the function of recovering the mist of the impregnation agent and a use method thereof. Background technique [0002] At present, the impregnation process is used to improve the qualification rate of the aluminum parts of the engine, such as the aluminum engine block and cylinder head. However, the impregnation process needs to be vacuumed, immersed in the workpiece, and pressurized in a closed tank to complete the process. impregnation. Vacuumizing, pressurizing, etc. in the existing process. The change of the pressure in the impregnating tank leads to the change of the boiling point of the impregnating agent, thus forming the mist of the impregnating agent in the tank, and dissipating into the air as the tank is opened, causing the pollution of the workshop environment. The main disadvantages of the current impregnation pro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D23/04
Inventor 肖成平刘彬邓平胡期君吴明飞
Owner CHONGQING CHANGAN AUTOMOBILE CO LTD