Ultrasonic flaw detection of casting defects of medium and large steel castings
Ultrasonic flaw detection mainly detects the near surface and internal quality of steel castings, and the internal quality of steel […]
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Casting defects of cast steel joints
With the development of spatial structure, the span of structure is becoming larger and larger, and the forms are also
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Sand casting technology of motor shell steel castings
Due to the differences in product structure, weight, process equipment of production enterprises, production conditions and process technology level, there
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Ester hardened sodium silicate sand casting motor shell casting
Ester hardened sodium silicate self hardening sand process is a new generation of self hardening sand process developed on the
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Defect analysis and optimization of steel castings for shell casting
The crack and sand inclusion of motor shell steel castings are the inertia quality problems in casting production, and they
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Formation of casting defects with tensile cracks in steel castings
The formation reason and process of tensile crack casting defect are different from that of shrinkage crack casting defect. 1)
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Production quality of steel castings for shell casting
From April to December 2020, ZHY casting fully applied the optimized new sand mold casting process to production, and produced
Scientific
Casting defects of motor housing steel castings
From January to March 2020, ZHY Casting used the above process to produce 200 motor housings in small quantities. Basically,
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Optimization of pouring process in sand casting
The pouring process of sand casting is a very important link in the whole casting process. Usually, many foundries regard
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Modeling design of mud pump body in sand casting
It is necessary to establish an effective three-dimensional model when using ProCAST to analyze the filling process of sand casting
Scientific
Structure and process optimization of sand casting
When designing the structure of sand castings, we should not only consider the requirements of mechanical properties and working performance,
Scientific
Analysis on sand casting technology of mud pump body
The mud pump body of sand casting is made of ZG35, which belongs to medium carbon cast steel, with high
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Optimization of molding sand process in sand casting
Crack casting defect is the biggest obstacle restricting the popularization and application of furan resin sand process in steel castings.
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Technical requirements for sand casting of motor housing steel castings
The manufacturing of motor shell steel castings is relatively complex, mainly including sand casting, smelting and pouring, heat treatment, flaw
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Casting defects of motor shell steel castings
The hot crack casting defects are analyzed from the macro and micro morphology. The hot crack can be divided into
Scientific
Improvement scheme of insufficient pouring defects of investment casting
After analyzing the defects, another improvement scheme is made, as shown in the figure. In the original scheme, the investment
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Hot crack defects of furan resin sand casting steel castings
Most of the previous studies put forward the thermodynamic and dynamic conditions of hot crack formation from the perspective of
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Smelting and casting process of steel castings for motor casing
In terms of smelting process and equipment for molten steel of steel castings, developed countries usually adopt relatively advanced process
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Alkaline phenolic resin sand casting steel castings
Ester cured alkali phenolic resin is a phenolic resin formed by condensation polymerization of phenol and formaldehyde catalyzed by strong
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CO2 sodium silicate sand casting motor shell casting
There are two kinds of sodium silicate sand processes, CO2 sodium silicate sand process and ester hardened sodium silicate self
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Clay sand casting motor shell casting
According to the type of manufacturing process, the motor shell can be divided into welded motor shell and sand casting
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Formation of shrinkage cracks in steel castings
1) The fillet of steel casting belongs to the hot spot, which usually lags behind the solidification of other parts.
Scientific
Sand sticking defect of bolster and side frame steel castings
The sand sticking parts of the bolster and side frame are mainly concentrated near the inner sprue and the root
Scientific
Sand inclusion defect of bolster and side frame steel castings
During the production of bolster and side frame by green sand casting, sand inclusion defects are found, which are mainly
Scientific
Production practice of carburizing defects of lost foam casting steel castings
In 2014, ZHY Casting introduced a small lost foam casting production line, mainly for the development of castings for waste
Scientific
Smelting and pouring process of steel castings for shell casing
① Molten steel smelting process Element C% Si% Mn% P% S% Cu% Range 0.10-0.28 0.20-0.45 0.30-0.68 ≤0.035 ≤0.035 ≤0.30 5T
Scientific
Magnetic particle inspection for casting defects of medium and large steel castings
In the field inspection, we should focus on the parts prone to casting defects. According to my experience in the
Scientific
Casting defects such as non elimination of casting stress, improper cold shut and preheating
Fig. 1 and 2 fracture of anchor claw in drop test, which is visually characterized by brittle fracture. The main
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Analysis of mold filling process in sand casting of mud pump body
The traditional process design mainly depends on theoretical calculation and production experience. After determining the sand mold casting gating system
Scientific
Classification of sand casting gating system for mud pump body
There are two main classification methods for sand casting gating system of mud pump body: one is that it can