Manufacturing overview of CB2 steel castings
CB2 cast steel is a heat-resistant steel developed for 630 ℃ ultra supercritical units in the European joint research project […]
CB2 cast steel is a heat-resistant steel developed for 630 ℃ ultra supercritical units in the European joint research project […]
C Si Mn P S Cu Sb Mgincomplete 3.43 2.09 0.42 0.020 0.010 0.65 0.005 0.045 According to the above
The characteristic of rotary disc sand mold casting is rectangular. The internal and external shapes of rotary disc sand mold
1. White mold making Due to the large size of the vacuum pump shell casting, the white mold of the
The flatness of compacted vermicular cast iron platen surface is also very high. Therefore, the deformation of compacted vermicular cast
The internal shrinkage porosity and shrinkage cavity of the casting produced by the original lost foam casting process is relatively
1. Casting process Adopt the core assembly and vertical pouring process, pre assemble the base core, water jacket core, airway
1. Numerical simulation of bottom pouring inclined gating system in sand mold casting AnyCasting is used for numerical and simulation
In order to verify whether the top pouring process is reasonable, whether the molten iron mold filling can ensure the
1. Spheroidizing treatment Graphite distortion and fragment graphite will be produced in nodular cast iron with thick and large section
The solidification characteristics of heavy section nodular cast iron castings are: short liquid solidification time, long eutectic solidification time, and
Figure 1 shows the relationship between the tensile strength, Brinell hardness and w (TI) content of the test sample, in
The working surface of the composite roll is the outer surface, that is, the outer layer should meet the requirements
Whether the selection of mathematical model is reasonable or not directly imagines the accuracy of the whole simulation process, which
The tensile strength of gray cast iron cylinder head body is required to reach 300 MPa, and the tensile strength
The structure of special alloy gray cast iron frame gray cast iron used in the power system of high-speed railway
Based on the current manufacturing and use status of CB2 steel castings, in order to grasp the quality differences between
1. Analysis of sand casting process The material of sand mold casting rotary disc is HT250, which is a medium-sized
The front axle is a key component of the shock absorber system of an agricultural machine. It is usually produced
Furan resin sand is used for three box modeling, and the parting method is shown in Figure 1. See Figure
According to the solidification sequence of impeller casting, the timely feeding of riser can not be obtained at the thick
Some studies have pointed out that the cross-sectional area of each component of lost foam casting gating system, the size
There are many reasons for shrinkage and porosity casting defects in castings. Deficiencies in product structure, smelting process, core sand,
With the continuous improvement of the quality requirements of diesel engine products in the whole machine factory, higher and higher
With the increasing requirements of environmental protection, energy conservation and emission reduction, efficient, clean and low emission ultra supercritical power
1. Brushing method Brush the clean surface to be observed with mixed lime water, and block the through-hole within the
The oil pan (oil pan) grey cast iron produced by ZHY casting is a large engine part. Its function is
The content of C and Si is determined according to the carbon equivalent CE. Generally, the content of C is
CB2 cast steel is 9CrMoVNbB steel, and its trial produced steel castings have an extrapolated endurance strength of 85mpa at
1. Cause analysis According to the morphological analysis of the casting pore defects after dissection, it is mainly invasive pores,