Industry News

Defect Analysis of the 40CrMnMoA Roll Shaft Forging

The roller shaft is made of 40CrMnMoA steel with a net weight of 36.6 tons, manufactured from a 60.5-ton steel ingot. Its manufacturing process includes: smelting, casting → forging → post-forging heat treatment → rough machining → ultrasonic testing. During ultrasonic testing, continuous defects... Read More

Research on the Optimization of Manufacturing Process for H13 Mold Steel

H13 die steel is a hot work die steel suitable for die manufacturing in high-stress and high-temperature environments. It contains high levels of carbon and vanadium, along with appropriate amounts of alloying elements such as chromium and molybdenum, offering excellent hardenability, wear resi... Read More

Effect of High-Temperature Normalizing on the Post-Forging Microstructure of H13 Steel

H13 steel exhibits high hardenability, excellent wear and heat resistance, maintaining relatively high hardness and strength below 600°C, along with superior cold and hot fatigue resistance and good temper stability. It is widely used in die casting molds for aluminum, copper, and their alloys, y... Read More

Research Progress on Radial Forging Process of Superalloy Alloy

High-temperature alloys, as critical materials for high-temperature components such as turbine blades, combustion chambers, and turbine disks, are widely used in aviation, aerospace, and energy sectors due to their exceptional performance under extreme temperatures. However, controlling the micro... Read More

Defect Characteristics in Ultrasonic Testing

This study utilizes the Ondar-3600 ultrasonic flaw detector to investigate the ultrasonic waveforms of typical defect surfaces in steel and aluminum. Through qualitative analysis of surface-reflected defect waveforms and dynamic ultrasonic characteristics, the research characterizes the pulse-typ... Read More

Analysis of cracking after martensitic stainless steel

In recent years, with the rapid development of China's electric power and boiler industry, the demand for boiler tube billet continues to increase.10Cr9Mo1VNb is martensite type stainless steel, with high oxidation resistance and high temperature steam corrosion resistance, good impact toughness ... Read More

Superalloy forging temperature and heating specification

Superalloy heating is carried out in two stages: preheating and heating. In order to shorten the insulation time of superalloy at forging heating temperature and avoid excessive coarsening of grains and dilution of the alloy element, in order to reduce the thermal stress caused by poor thermal co... Read More

Selection and application of forging

Forging is a processing process in which a metal is flattened, crushed or squeezed under strong pressure to obtain high-strength metal parts. In general, (except in special cases), the forging metal needs to be preheated to reach the desired temperature. It should be particularly noted that the ... Read More

Technical characteristics and status quo of nuclear power large forgings

With the increase of power generation power and the continuous improvement of safety factor of nuclear power plants (such as AP1000, EPR, etc.), the requirements for their basic parts (nuclear power forgings) are becoming higher and higher, and the manufacturing is more and more difficult. The ma... Read More

How to further improve the material utilization rate of forging materials

To improve the utilization rate of forging cutting materials, it is necessary to make three-dimensional efforts from \"optimization design, process improvement and fine control\". The core is to reduce waste production and maximize the use of billet. The specific methods are as follows: 1. Optim... Read More

How to use wind power bearing forgings to ensure product quality from scratch?

In the wave of global energy transformation, the wind power industry is reshaping the energy landscape with an annual growth rate of 15%. As a leader in China's bearing industry, DHDZ Forging not only breaks the technological monopoly of international giants in the field of large wind power bear... Read More

Unpack the password for the forging quality improvement

As the core foundation component of mechanical equipment, the quality of forgings directly determines the service life and operation stability of the equipment. How to prevent the quality defects of forgings is the key to ensure the quality, performance, cost and efficiency of forgings. In recent... Read More
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