Common skills of casting runner design
Sand slag hole is the most common surface defect of sand mold casting, which is difficult to avoid and usually […]
Sand slag hole is the most common surface defect of sand mold casting, which is difficult to avoid and usually […]
The solidification process of ductile iron castings is generally a process of shrinkage, expansion and re shrinkage. Although the precipitation
To obtain a dense casting, the sprue cup should be poured as soon as possible and always filled during the
Nodular cast iron (ductile iron for short) is the 50th century A kind of high strength cast iron developed in
The flow rate W is defined as the metal weight passing through the cross-sectional area of the gating system within
Before designing the mold process, the natural properties of the parts should be analyzed, including weight, volume, surface area, number
Disa company in Denmark is famous for its vertical parting box less injection molding line and shot blasting machine. It
The calculation of flow velocity at specific position of gating system is based on Torricelli formula of ideal free falling
According to the experimental results of the first two sections, the carburization defects will lead to the excessive chemical composition
With the application of ductile iron in the global industrial field more and more widely, the quality requirements of ductile
Based on the previous calculation methods and results, some calculation factors have been modified by zhougengao Engineering Co., Ltd., and
The properties of tensile samples were tested by a universal testing machine controlled by microcomputer, and the tensile strength and
Because of the special solidification property of ductile iron, it is easy to produce shrinkage cavity and shrinkage porosity. How
Six groups of samples were taken when analyzing surface carburization, and the location of the test point was changed to
Automobile brake is the most important part of automobile chassis system, which bears the main responsibility of safe driving. In
In this test, 6 test pieces were poured in the same ladle of molten steel. The chemical composition of molten
By using ProCAST numerical simulation software to study the lost foam casting process of the representative steel and steel bearing
In order to study the carburization defects of steel casting for bridge support, four sampling locations are selected, namely, near
Firstly, the mechanism and manifestation of carburization defects in steel castings are described, and then the experimental methods and main
The filling process of lost foam casting is the replacement process of metal liquid and foam pattern. Because the pouring
Using the process plan after the second optimization, the small batch production verification of steel and steel bearing was carried
In order to study the impact resistance of steel castings at different temperatures, three temperature detection conditions, namely normal temperature,
When setting simulation parameters in ProCAST preprocessing section, the following aspects need to be adjusted: (1) The material of cold
In the process of heating and cooling, there will be group increase transformation of steel, which is the fundamental reason
The simulation results show that the safety height of riser is 11.15cm, which is 8.15cm higher than the minimum safety
Mechanical properties refer to the mechanical characteristics of materials under different environments when they bear various external loads (tensile, compression,
It can be seen from Fig. 1 that when the pouring temperature changes from high to low, the safe height
The object of this research is steel steel steel bearings in bridge bearings. The production process is produced according to
The safety height of riser feeding is taken as the evaluation index in the orthogonal test. The measurement method of
(a) Direct attack spectrometer The main instrument used for chemical composition detection is the direct attack spectrometer (q4-130) in Brooke,