How to determine the temperature of precision castings and casting pouring location
Release time:
2023-04-21
Precision casting is a high-precision casting products, it has the precision and stability requirements of all aspects of the production process to meet high standards, of which the casting temperature and pouring position is an important two links. Therefore, how to determine the temperature of precision castings and casting pouring location is the key, the following is a detailed introduction.
First, the method of determining the temperature
The casting temperature of precision castings directly affects the quality and performance of castings, so it needs to be carefully controlled. Specific methods are as follows:
1. According to the material requirements to set the casting temperature
Different materials casting temperature is different, the casting temperature directly affects the casting of physical properties and chemical properties, so according to the selected material requirements to set the appropriate casting temperature.
2. Combined with the development of experience and experimental results to determine the casting temperature
In practice, through the test to determine the appropriate casting temperature is also very helpful. In general, the casting temperature can be within a certain range of tests, and then combined with the development of experience and experimental results to determine the casting temperature.
3. Select the appropriate casting thermometer for measurement
The use of suitable casting thermometer for measurement can ensure the accuracy of the casting temperature of precision castings. Generally speaking, to choose good quality, accurate readings, high sensitivity thermometer for measurement.
The combination of the above three methods can help manufacturers accurately control the casting temperature of precision castings and improve the quality and performance of castings.
Second, determine the casting pouring location method
Casting pouring location selection and determine the castings directly affect the quality and performance, the following is to introduce some commonly used to establish the casting pouring location of the method:
1. According to the process performance to choose
In the casting process, should be based on the formulation of the fluidity of the material performance, deformability, shrinkage rate and other characteristics of the choice, try to make the casting pouring place in the lower part of the steel jump surface, to avoid welding sound adverse consequences.
2. Based on the model form to determine
In the process of determining the casting pouring location, also need to combine the size of the model, form and casting characteristics to make decisions, in general, should try to select the thicker part of the model as a casting casting location, so as to ensure that the casting temperature uniformity and pouring smoothly.
3. Reference to historical data and experience parameters
For precision casting parts, the past production experience is very important for the choice of pouring location. In appropriate cases, you can refer to historical data and experience parameters to assist in determining the casting pouring location.
In summary, the manufacturer in determining the casting temperature and casting casting location, need to combine the characteristics of the material and model, combined with experiments and experience to compare the trade-offs, and the use of appropriate technology to ensure the quality and effectiveness of the production process.
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