Isothermal quenching and Boronizing of gray cast iron
The samples of gray cast iron were treated by isothermal quenching and boronizing. The isothermal quenching process of gray cast […]
Scientific
Scientific
Scientific
Common defects of aluminum alloy lost foam casting
Lost foam casting technology is known as “casting technology in the 21st century” and “green revolution of casting industry”, which
Scientific
The second experimental stage of crack in lost foam steel casting
According to the previous experimental analysis, the next plan is proposed: accelerate the discharge of carbon in the white mold
Scientific
The first experimental stage of crack in lost foam steel casting
At the initial stage of trial production, zg27simn (carbon content 0.24 ~ 0.32%) was taken as the experimental sample to
Scientific
Lost foam casting test of large diameter thin wall ductile iron watch case
1. Determination of structural characteristics and blank size of lost foam Castings Figure 1 shows the shell model of Large
Scientific
Lost foam casting of large diameter thin wall ductile iron watch case
The traditional sand casting method is generally used in the production of cast iron water meter, which has complex process,
Scientific
Advantages and disadvantages of lost foam in casting process
1. Advantages of lost foam casting ① When using polystyrene foam in white mold manufacture, its density is very small,
Scientific
Hot joint analysis and riser design of nodular iron main reducer shell cover to avoid shrinkage defects
Casting hot joints are generally divided into structural hot joints and process hot joints. Structural hot spot refers to the
Scientific
Selection of parting surface and pouring position of nodular iron main reducer shell cover to avoid shrinkage defects
For the horizontal box free molding line, the parting surface of the production main reducer shell cover is generally selected
Scientific
Shrinkage cavity and porosity defect of nodular iron main reducer shell cover
The main reducer housing cover is an important component of heavy truck axle, which is matched with the main reducer
Scientific
Implementation and effect verification of High Toughness Nodular Cast iron cylinder head
Production preparation shall be carried out according to the established scheme. Since the injector hole core is made of hot
Scientific
Analysis and solution of shrinkage defect of High Toughness Nodular Cast iron cylinder head
1. Cause analysis This type of cylinder head integrates the intake pipe and rocker shaft seat on the basis of
Scientific
Improvement measures for casting process deformation defects of bed castings
1) In view of the insufficient stiffness of the bottom plate, a stiffener is added at the bottom of the
Scientific
Numerical simulation of casting process of zg310 large casting seat
Firstly, according to the calculation results, the 3D pouring model of the seat body is drawn in Pro / E
Scientific
Pouring position of zg310 large casting seat parts
The common characteristics of cast steel are high melting point, poor fluidity, large shrinkage, easy oxidation and inclusion. During casting,
Scientific
Study on casting technology of nodular cast iron sand suction pump body
The sand suction pump casting is mainly used for river dredging, dredging and Embankment Consolidation, and the delivery medium can
Scientific
Centrifugal casting isothermally quenched ductile iron bushing test process and method
1. Test materials Figure 1 shows the wear of excavator bushing. It can be found that the bushing has been
Scientific
Technical breakthrough in the production of China large steel castings
Large steel castings are mostly the main bearing parts and supports in major technical equipment. The castings have huge size,
Scientific
Determination of pouring position of zg310 large casting seat parts
The pouring position of castings refers to the position of large castings when pouring in the mold. Because the seat
Scientific
Process improvement of base plate castings for large machine tools
According to the types of base plate defects, corresponding measures are taken in the aspects of gating system, riser, composition
Scientific
Application of squeeze casting in commercial automobile engine mounting bracket
The 110 engine support of a commercial vehicle is shown in Figure 1. It has a long life cycle and
Scientific
Application of squeeze casting technology in automobile control arm
Figure 1 shows the aluminum alloy control arm. The material is A356.2 alloy, and the maximum overall dimension is 320mm
Scientific
Application of squeeze casting technology in automobile airbag support arm
The airbag support arm is the core support part of the vehicle wheel drive axle, as shown in Figure 1.
Scientific
Application of squeeze casting technology in automobile steering knuckle
The steering knuckle is a chassis safety part, which has the functions of connection, bearing and steering, and the service
Scientific
Analysis of graphite morphology and distribution and mechanical properties of nodular cast iron
Figure 1 (a) and figure 1 (b) show the hardness and strength changes of three groups of different samples respectively.
Scientific
Microstructure analysis of graphite morphology and distribution in nodular cast iron
Fig. 1 shows the microstructure SEM of three groups of ductile iron samples. It can be seen from the figure
Scientific
Effect of compounds on tensile compressive fatigue properties of gray cast iron
General materials contain some alloy compound phases. The existence of alloy compound phases enhances the matrix strength, hinders the crack
Scientific
Effect of casting holes on tensile compressive fatigue properties of gray cast iron
For cast iron, there will always be some unavoidable casting defects, such as shrinkage cavity and porosity. Casting defects have
Scientific
Effect of inoculation treatment with different inoculants on mechanical properties of gray cast iron
The table shows the effects of the same alloying and different inoculants on the mechanical properties of gray cast iron.
Scientific
Effect of graphite on initiation and development of tension compression fatigue crack in gray cast iron
The deformation of any material under external load will be affected by its own microstructure and properties and external environmental