Effect of rare earth on common inoculant of gray cast iron
As a high-efficiency inoculant, rare earth has always occupied an important position in the application of inoculant, mainly because it […]
As a high-efficiency inoculant, rare earth has always occupied an important position in the application of inoculant, mainly because it […]
The method is simulated and verified by a case list. A sand casting enterprise produces the motor shell, and the
With the development of industrialization in China, ductile iron has become the main metal material in industrial production due to
Spheroidized elements usually have the following common properties: (1) In gray cast iron, the solubility of elements in molten iron
The inherent property process parameters of sand casting are the parameters determined by the nature of the object affected by
The creep effect of rare earth was found in the process of treating nodular cast iron with rare earth, but
The coupling design parameters in sand mold casting process parameters, such as casting temperature, holding time, cooling time, surface treatment,
Adding rare earth elements into gray cast iron can significantly improve the mechanical properties of gray cast iron, such as
The independent process parameters of sand casting are directly determined by the product drawing and the production process conditions of
The molten steel of steel castings has high melting point, poor fluidity, large shrinkage and easy oxidation. Therefore, the gating
The strength of gray cast iron mainly depends on graphite and matrix structure. With the increase of carbon equivalent, the
In the past, similar steel castings used the core assembly molding, and the size of the sand core is relatively
The steel casting of splay saddle saddle head is the first suspension bridge for both highway and railway in China,
Energy sources including electricity, natural gas and coal are used in the process of sand casting. For example, no additional
Since the 1980s, the rare earth industry has developed rapidly. Whether abroad or at home, the application technology of rare
The casting defect samples were analyzed by energy spectrum, and the scanning positions of energy spectrum points were shown in
The material consumption of sand casting is different from that of other machinery manufacturing industries. The production process of sand
Gray cast iron has low cost, low price and wide application. It has always accounted for a large proportion in
The defect samples are analyzed by energy spectrum, and the scanning positions of energy spectrum points are shown in Figure
(1) A new generation of high-performance piston is manufactured by using ferrite ductile iron, such as QT600-7 profile split method.
Gray cast iron cylinder head pig iron is added according to 5%, 10%, 15% and 20% of the total charge.
Because the cold core box is made by blowing resin sand, in the specific production, in order to make the
After friction welding of existing 38MnVS6Ti non quenched and tempered steel and 42CrMo4 quenched and tempered steel pistons, if only
During casting production, the causes of oxidation slag inclusion defects are: ① The oxide slag on the liquid surface is
1. Impact performance After the impact test, it is found that the impact absorption energy of the bearing pedestal increases
During the production of the ductile iron profile, the medium frequency induction furnace can be used for smelting. The number
There may be two reasons for this phenomenon: holding time of molten iron and water content of molding sand. 1.
In the process of casting production, the causes of blow hole defects are: ① The excessive velocity of molten iron
During the casting process of automobile engine cylinder block, in order to effectively ensure the casting accuracy of automobile engine
Energy spectrum analysis of casting defect samples; For example, the table shows the element composition of each scanning point in