What is the difference in quenched and tempered microstructure between hot forging and cold forging parts?Cold heading: It is the use of the plasticity of metals to apply pressure or cold draw using cold mechanics, achieving the goal of solid-state deformation of metals. The forging method of thicke Read More »

1、 Raw material selectionThe raw material for piston rods is generally high-quality steel, which varies depending on the usage environment and the load it needs to withstand. Common materials include 45 steel, 40Cr, 35CrMo, etc. When selecting materials, the first thing to ensure is that the materia Read More »

How to classify the deformation steps and die chamber of hammer forging? When forging with a hammer, the blank is heated and deformed into a forged piece with flying edges in the forging die chamber. This process is called the "forging process". The hammer forging process is generally divided into Read More »

Large forgings usually refer to the forging of steel ingots weighing over 10 tons into various heavy-duty machinery forgings using a hydraulic press with a load of over 1000 kN or a forging hammer with a load of over 50 kN. Such as impellers, rotors, retaining rings, high-pressure vessels, large cra Read More »

The standards for ultrasonic testing of forgings mainly include "Ultrasonic Testing of Marine Forged Steel Parts" (CB/T 3907-1999) and "General Technical Conditions for Metallurgical Equipment Manufacturing - Ultrasonic Testing of Forged Steel Parts" (YB/Y 036.10-1992). The standard for ultrasonic t Read More »