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High-frequency micro vibration negative pressure pouring technology

A negative pressure pouring, high-frequency technology, applied in casting molding equipment, molds, cores, etc., to increase the compactness, improve work efficiency, and avoid waste.

Inactive Publication Date: 2017-08-04
SHIYAN ZHIMING INDAL DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Inject molten metal, concrete, etc. into the mold for casting of metal parts or molding of cement boards and concrete buildings. With the continuous improvement of product quality requirements, traditional pouring methods cannot meet the requirements of current development. During the pouring process, Minor mistakes have a great impact on the generation of bubbles in the pouring process. Therefore, a high-frequency microseismic negative pressure pouring technology is proposed

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The present invention proposes a high-frequency microseismic negative pressure pouring technology, which includes the following steps:

[0021] S1. Make a mold according to the shape of the casting. After completion, move the mold to the preheating device and heat it. The heating temperature is 300 degrees Celsius and the preheating time is 20 minutes;

[0022] S2. Put the mold in S1 into the sand box, place the coated sand mold in the sand box and bury the sand, and set the air isolation layer at the mouth of the sand box, and the pouring port of the coated sand mold penetrates the air isolation layer and is exposed on it. above;

[0023] S3. In the buried box process of lost foam casting, the motor is built in the bottom of the sand box, and the output shaft of the motor is connected to the sand box. The motor adopts a variable frequency high-frequency vibration motor, and the motor and the sand box are connected The joint is provided with a sealing mechanism;

[00...

Embodiment 2

[0034] The present invention proposes a high-frequency microseismic negative pressure pouring technology, which includes the following steps:

[0035] S1. Make a mold according to the shape of the casting. After completion, move the mold to the preheating device and heat it. The heating temperature is 350 degrees Celsius and the preheating time is 23 minutes;

[0036] S2. Put the mold in S1 into the sand box, place the coated sand mold in the sand box and bury the sand, and set the air isolation layer at the mouth of the sand box, and the pouring port of the coated sand mold penetrates the air isolation layer and is exposed on it. above;

[0037] S3. In the buried box process of lost foam casting, the motor is built in the bottom of the sand box, and the output shaft of the motor is connected to the sand box. The motor adopts a variable frequency high-frequency vibration motor, and the motor and the sand box are connected The joint is provided with a sealing mechanism;

[00...

Embodiment 3

[0048] The present invention proposes a high-frequency microseismic negative pressure pouring technology, which includes the following steps:

[0049] S1. Make a mold according to the shape of the casting. After completion, move the mold to the preheating device and heat it. The heating temperature is 400 degrees Celsius and the preheating time is 26 minutes;

[0050] S2. Put the mold in S1 into the sand box, place the coated sand mold in the sand box and bury the sand, and set the air isolation layer at the mouth of the sand box, and the pouring port of the coated sand mold penetrates the air isolation layer and is exposed on it. above;

[0051]S3. In the buried box process of lost foam casting, the motor is built in the bottom of the sand box, and the output shaft of the motor is connected to the sand box. The motor adopts a variable frequency high-frequency vibration motor, and the motor and the sand box are connected The joint is provided with a sealing mechanism;

[005...

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Abstract

The invention discloses a high-frequency micro vibration negative pressure pouring technology. The high-frequency micro vibration negative pressure pouring technology comprises the steps of during pouring, pouring melt water into a sand box, then, starting a high-frequency vibration motor at negative pressure, increasing compactness in the sand box, enabling the high-frequency vibration motor, the sand box and foam to form an integral body, and regulating vibration frequency and time. The high-frequency micro vibration negative pressure pouring technology comprises the specific steps of A1, treating air in the sand box through a vacuum extraction system, and applying negative pressure to the sand box through vacuum purified flue gas; A2, starting the high-frequency vibration motor, and guaranteeing that vibration amplitude of the high-frequency vibration motor is 5000 r / min to 5500 r / min; and A3, while air in the sand box is extracted through the vacuum extraction system, starting the high-frequency vibration motor again to continuously vibrate till a casting is primarily solidified. According to the high-frequency micro vibration negative pressure pouring technology, high-frequency vibration negative pressure pouring during the pouring process is achieved, heavy section problems of a nodular iron casting or shrinkage cavity and shrinkage porosity problems of hot spot parts are solved, working efficiency is effectively improved, and unnecessary waste of resources during the pouring process is avoided.

Description

technical field [0001] The invention relates to the field of pouring technology, in particular to a high-frequency microseismic negative pressure pouring technology. Background technique [0002] Inject molten metal, concrete, etc. into the mold for casting of metal parts or molding of cement boards and concrete buildings. With the continuous improvement of product quality requirements, traditional pouring methods cannot meet the requirements of current development. During the pouring process, Minor mistakes have a great impact on the generation of bubbles in the pouring process. Therefore, a high-frequency microseismic negative pressure pouring technology is proposed. Contents of the invention [0003] The present invention proposes a high-frequency microseismic negative pressure pouring technology to solve the problems raised in the above-mentioned background technology. [0004] The present invention proposes a high-frequency microseismic negative pressure pouring tech...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C9/04B22D27/08
CPCB22C9/046B22D27/08
Inventor 陈吉军唐四强
Owner SHIYAN ZHIMING INDAL DEV
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