For the horizontal box free molding line, the parting surface of the production main reducer shell cover is generally selected […]
The main reducer housing cover is an important component of heavy truck axle, which is matched with the main reducer
Production preparation shall be carried out according to the established scheme. Since the injector hole core is made of hot
1. Cause analysis This type of cylinder head integrates the intake pipe and rocker shaft seat on the basis of
1) In view of the insufficient stiffness of the bottom plate, a stiffener is added at the bottom of the
Firstly, according to the calculation results, the 3D pouring model of the seat body is drawn in Pro / E
The common characteristics of cast steel are high melting point, poor fluidity, large shrinkage, easy oxidation and inclusion. During casting,
The sand suction pump casting is mainly used for river dredging, dredging and Embankment Consolidation, and the delivery medium can
1. Test materials Figure 1 shows the wear of excavator bushing. It can be found that the bushing has been
Large steel castings are mostly the main bearing parts and supports in major technical equipment. The castings have huge size,
The pouring position of castings refers to the position of large castings when pouring in the mold. Because the seat
According to the types of base plate defects, corresponding measures are taken in the aspects of gating system, riser, composition
The 110 engine support of a commercial vehicle is shown in Figure 1. It has a long life cycle and
Figure 1 shows the aluminum alloy control arm. The material is A356.2 alloy, and the maximum overall dimension is 320mm
The airbag support arm is the core support part of the vehicle wheel drive axle, as shown in Figure 1.
The steering knuckle is a chassis safety part, which has the functions of connection, bearing and steering, and the service
Figure 1 (a) and figure 1 (b) show the hardness and strength changes of three groups of different samples respectively.
Fig. 1 shows the microstructure SEM of three groups of ductile iron samples. It can be seen from the figure
General materials contain some alloy compound phases. The existence of alloy compound phases enhances the matrix strength, hinders the crack
For cast iron, there will always be some unavoidable casting defects, such as shrinkage cavity and porosity. Casting defects have
The table shows the effects of the same alloying and different inoculants on the mechanical properties of gray cast iron.
The deformation of any material under external load will be affected by its own microstructure and properties and external environmental
For gray cast iron, its mechanical properties mainly depend on the matrix structure and flake graphite in it. The shape
The instantaneous fracture zone of fatigue crack is the area where the material is unstable and suddenly fractured. Due to
The fatigue crack growth region is the region of stable development after fatigue crack nucleation and initiation. Fatigue bands generally
The fatigue crack origin region is the region where the fatigue crack nucleates and initiates. The fatigue crack first nucleates
(1) Fatigue test of ordinary HT250 lifting Faraday compression The lifting diagram of tension compression fatigue limit of ordinary HT250
The tension compression fatigue fracture morphology of low alloy HT250 with different surface roughness is shown in the figure. Figure
Results of tension compression fatigue test of low frequency gray cast iron Among the 8 samples of low-alloy HT250 low-frequency
The low magnification morphology of tensile fracture of three grades of gray cast iron is shown in Figure 1. It
