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Heat Treatment of Precision Casting
Heat Treatment of Precision Casting
Time of issue : 2014-06-03 12:00:00
Casting for heating and cooling conditions are different, so it has a lot of heat treatment, the following Xiaobian to introduce the main heat treatment.
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Casting for heating and cooling conditions are different, so it has a lot of heat treatment, the following Xiaobian to introduce the main heat treatment.
Introduction to Forging Process
Introduction to Forging Process
Time of issue : 2014-06-03 12:00:00
Forging is a kind of process method which exerts pressure to metal material with metal forming machine to make it plastic deformation to get the casting of specific mechanical performance, shape and dimension. It is one of the two parts of forging and pressing. Through forging, the defects of loose cast condition of metal generated during smelting process can be eliminated and the micro structure of the metal can be improved.
See more information
Forging is a kind of process method which exerts pressure to metal material with metal forming machine to make it plastic deformation to get the casting of specific mechanical performance, shape and dimension. It is one of the two parts of forging and pressing. Through forging, the defects of loose cast condition of metal generated during smelting process can be eliminated and the micro structure of the metal can be improved.
The Protection of The Transition Joints
The Protection of The Transition Joints
Time of issue : 2014-06-03 12:00:00
Coefficient of thermal expansion of copper and aluminum differ greatly. Than the thermal expansion coefficient of aluminum is about 36% that of copper, in the transition joint heating copper material will be squeezed and not fully recover after cooling. Thus, in the long run Lengrebujun term repeated temperature changes (e.g., power and power, a small load and a large load, alternating hot and cold weather, etc.), the contact surface tends to have a greater impact gap the contact area, resulting in poor contact of the contact resistance increases further.
See more information
Coefficient of thermal expansion of copper and aluminum differ greatly. Than the thermal expansion coefficient of aluminum is about 36% that of copper, in the transition joint heating copper material will be squeezed and not fully recover after cooling. Thus, in the long run Lengrebujun term repeated temperature changes (e.g., power and power, a small load and a large load, alternating hot and cold weather, etc.), the contact surface tends to have a greater impact gap the contact area, resulting in poor contact of the contact resistance increases further.
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