Causes of inclusions and shrinkage cavities in the reducer housing of lost foam casting nodular cast iron
The carbon content of ductile iron castings in lost foam casting is generally 3.5% ~ 3.8%, which is easy to […]
The carbon content of ductile iron castings in lost foam casting is generally 3.5% ~ 3.8%, which is easy to […]
The performance of the die forged connecting rod is reliable. The inspection method is simpler than that of the cast
Although the surface hardness of gray cast iron after laser melting and impact is greatly improved, the microstructure toughness of
The product quality of quenched and tempered steel connecting rod is mainly determined by the technical parameters such as quenched
According to the element distribution of line scanning and surface scanning, the thickness of interface bonding zone of composite samples
Connecting rod is widely used in all kinds of power machinery. It is an important part of all kinds of
Compared with gray cast iron, graphite in vermicular graphite cast iron is short and thick, curved and worm like. Because
Porosity casting defect has always been the most common defect in sand casting gray iron castings. It refers to the
The quenching and tempering treatment of quenched and tempered steel has two major shortcomings: one is that it consumes a
A lot of research and application have been carried out on Squeeze Casting Technology in foreign countries. For example, casting
With the rapid development of economy, the domestic demand for large and complex castings in the fields of automobile, aviation,
Some progress has been made in the research on the forming method and equipment of composite squeeze casting. The research
The solidification process of iron carbon alloy plays a decisive role in its final structure. Depending on the cooling rate,
(1) Effect of amplitude on hardness of gray cast iron Figure 1 shows the change curve of Brinell hardness of
The simulation results of lost foam casting of the improved turbine rear exhaust nozzle are shown in the figure. It
① Effect of carbon content on quenching crack The carbon content of connecting rod material shall be within a narrow
There are two types of heat treatment deformation: one is the change of size, the other is the change of
Through the experimental study of laser melting and laser melting impact on gray cast iron, the changes of microstructure and
The connecting rod is composed of a big end, a rod body and a small end. 1.Connecting rod small end
Heat treatment is a kind of hot working process, which heats the steel to a predetermined temperature in the solid
Structural steel after quenching and high temperature tempering has good comprehensive mechanical properties, high strength, good plasticity and toughness. The
In addition to ductile iron and gray iron, vermicular iron and white iron are commonly used as cast iron alloys.
1.Manufacturing process route of connecting rod The general manufacturing process of quenched and tempered steel connecting rod is: forging →
By imitating the surface characteristics of wear-resistant organisms, the bionic non smooth surface morphologies of point, strip and mesh are
(1) A forming method of composite squeeze casting for large parts was proposed. According to this method, a composite squeeze
The cylinder block is the framework of the automobile engine, with thin wall and complex structure. In the casting production,
The numerical simulation results of the solidification process of the improved lost foam casting turbine rear exhaust pipe are analyzed.
When nodular cast iron is cast, the amount of nodularizing agent will directly affect the graphite morphology in cast iron,
The existence of flake graphite in the middle layer of gray cast iron seriously affects the improvement of its properties.
1.Diesel engine connecting rod The connecting rod of the diesel engine bears high explosion pressure and low rotation speed. The