Solidification process and characteristics of grey cast iron
In the cooling and solidification stage, there is eutectic solidification transformation in gray cast iron, and the w stable system […]
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Advantages and disadvantages of complex thin-walled precision aluminum alloy castings by sand gravity casting
In recent years, in order to pursue the reasonable structure and lightweight of parts and components, the parts originally composed
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Present situation of grey cast iron production in China
Use of grey cast iron Gray cast iron plays an important role not only in China’s economic production, but also
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Effect of different pouring speed on casting quality
For the same casting, the pouring time is different when the pouring speed is different. If the pouring speed is
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Selection of casting technology for spiral bevel gear
Casting process refers to the process of pouring high temperature liquid metal into the mold to obtain a certain shape
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Brief introduction of casting defects of spiral bevel gear
Formation mechanism of shrinkage cavity and porosity during solidification of castings The volume shrinkage during solidification is the cause of
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Defect analysis and solution of trial casting blank
1 Inspection for fleshy defects of castings The contour of the two blanks is clear, and there is no obvious
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Trial production process of EPC for motor shell
After the installation and debugging of the water jacket core mold, the water jacket core was successfully made. After the
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Design features of EPC mould
It can be seen from the research that the appearance of the motor housing is completely expressed by the EPS
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The necessity of saving energy and reducing consumption of China casting
At present, the price of water, electricity, natural gas and other energy has been greatly increased. As a self-made parts
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Design of EPC for motor shell
According to the process model based on product model, the design of EPC mold needs to get mold cavity, core,
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Nozzle arrangement of casting mould
Generally speaking, the layout of the injection nozzle of the casting mold has the following principles: (1) The sand shooting
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Causes and preventive measures of casting defects caused by air holes under the skin of nodular cast iron piston rings
In cylinder casting, the subcutaneous pores are mainly distributed at the position of L ~ zmrn under the outer circular
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Gating system of EPC with bottom injection
Because the motor shell is cylindrical structure, the bottom pouring system is more suitable for the flat pouring because of
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Selection of EPC casting system for motor shell
The design principle of the pouring system is that the mold filling is stable, the temperature gradient of the molten
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Coating process of EPC coating
The common coating composition and preparation are mainly made up of a variety of raw and auxiliary materials. The coating
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Selection of foam particles for lost foam casting
The choice of foam bead is very important to the pattern of lost foam. Its quality will directly affect the
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How to solve the main problems of cast iron alloy made by lost foam casting
In view of the problems such as coarse structure and low mechanical properties in EPC iron castings, the following measures
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Process design of complex outer mold casting water jacket core for motor shell
The shell of the motor has complex appearance, including outlet box, fork hole, pitch converter mounting screw hole, rotor mounting
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Analysis of complex external mold casting technology of motor shell
The complex shape and hollow water cavity of the motor shell make the casting of the product more difficult. EPC
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The application of casting forming technology in foundry of China
Casting is a process of pouring high temperature liquid metal into mold cavity and cooling and solidification to form blank.
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Many advantages of lost foam casting make it develop rapidly in China
EPC is known as “casting technology in the 21st century”. The process is made of expandable polystyrene beads and a
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Development and progress of sand casting mold industry in China
As a common production method of castings, casting has been developed and innovated for many years. At present, sand casting,
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Market prospect of casting technology for complex water-cooled motor shell
With the increasing contradiction between the current social development and the environment, resources, as one of the pillars of the
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Defect characteristics, causes and prevention of insufficient elongation of castings
Causes: A. The composition of molten iron is unreasonable. B. Shrinkage cavity and porosity at the tensile position of the
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Design of pouring system for crankshaft casting
The gating system is a channel for liquid metal to flow into the crankshaft casting cavity. The pouring system is
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Preshrunk technology of typical large iron castings
Content of preshrunk process design for large iron castings The design factors of preshrunk technology for large iron castings mainly
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Size and position selection of cold iron for large gray iron castings
For the role of cold iron in the anti shrinkage process of castings, the sequential solidification theory and the equilibrium
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The harm of shrinkage cavity and porosity in aluminum alloy low pressure casting
Shrinkage defects will reduce the elongation of the material, and have a great impact on the load-bearing performance, impact resistance
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Design principle of riser for large gray iron castings
In the past, riser design basically followed the principle of sequential solidification, which needs to meet the following three conditions: