Cause analysis of surface defects of AlMg10 alloy casting parts
It can be seen from the chemical composition analysis, microstructure metallography and SEM observation results of the part alloy that […]
It can be seen from the chemical composition analysis, microstructure metallography and SEM observation results of the part alloy that […]
Through comprehensive analysis of the test results, it can be seen that: (1) The slight difference of graphite morphology in
The structure of horizontal centrifuge is simple, and abnormal vibration of centrifuge spindle occurs from time to time. The abnormal
During the cooling and solidification process of cylinder liner, the cooling water from the outer wall metal mold and impacting
Inoculant is added during the post-treatment of molten iron furnace, and the melting point of inoculant is generally 1300 ~
See Table 1 for the chemical composition of metal mold centrifugal casting vanadium titanium alloy gray cast iron cylinder liner.
The cast iron cylinder liner of diesel engine is generally produced by metal mold centrifugal casting. In production, it is
The structure of the flywheel housing is relatively complex and belongs to a typical thin-walled shell structure. Due to the
The flywheel housing is an extremely important power output component in the vehicle power system, and it is also a
Confirmation of the main factors affecting the casting process deformation defects of bed castings, track and observe the actual production
Lost foam casting technology is known as “casting technology in the 21st century” and “green revolution of casting industry”, which
1) In view of the insufficient stiffness of the bottom plate, a stiffener is added at the bottom of the
Generally, the hardness of cylinder liner in the qualified layer is hb225 ~ HB240, and the overall hardness difference of
In the whole pressure pipeline system, valve is the key control device. Its main function is to connect or block
For different casting defects (such as sand sticking, porosity, sintering, veining, shrinkage porosity at hot spot, etc.), the foundry should
In order to verify the correctness of defect cause analysis, the project team carried out process verification test. The test
Diesel engine is widely used, working environment is poor, working time is long. Because the cylinder head of diesel engine
As shown in Figure 1, a low-pressure casting water-cooled housing for electric bus is in the shape of a drum
Metal bending test is a test method to measure the bending plastic deformation ability of metal materials under bending load,
① Because the preparatory work in the early stage of production is not in place, the theoretical negative pressure value
The slag holes are mainly distributed around 2 and 5 turns, accounting for 22.7%; the defect area is large and
The generation of cold shut is directly affected by the temperature of molten iron. At a certain temperature, the design
The air-conditioner of the defective product is mainly located at the highest point of the mold, i.e. 2 and 5
Air conditioner The cold air gap is the gap that penetrates or does not penetrate the casting, and the edge
In the molding process of sand coated iron mold, sand collapse and empty shell are the important reasons for sand
(1) The elements with high content of C, O, Al, Si and some other alloy elements are found in the
The whole process from molten iron smelting to casting completion is a complex and irreversible process. In the process of
The main characteristics of the magnetic traces of linear defects detected by MT are mainly linear aggregated magnetic traces with
The main features of magnetic traces of point defects detected by MT. The magnetic traces are scattered and isolated small
The surface slag inclusion defect is the most common and the most difficult to avoid on the surface of gas