Defect analysis and process optimization of sand casting of steel castings
In view of the serious casting defects in the small batch production process of ZHY Casting motor shell steel castings, […]
News
casting defects
Scientific
Formation mechanism of MNS inclusion defects in steel castings
The two kinds of MNS inclusion defects observed are formed on the surface of oxidized inclusions. According to the literature
Scientific
Characteristics of slag inclusion and sand hole defects in medium and large steel castings
Fig. 1 slag inclusion defect on the upper surface of medium and large steel castings after processing, which is visually
Scientific
Slag inclusion casting defects in lost foam casting of steel castings
Slag inclusion casting defect refers to the casting defect formed by dry sand, coating and other inclusions as molten iron
Scientific
Repair of casting defects of medium and large steel castings
Different from forged steel parts, steel castings for hull structure have low carbon content and good welding performance. Defective parts
Scientific
Characteristics of porosity and shrinkage defects in medium and large steel castings
Fig. 1 the visual characteristics of air hole defects on the upper surface of steel casting hub are round, the
Scientific
Improvement of casting defects of bolster and side frame steel castings
1. Improvement measures 1.1 Inspection and control of molding sand performance While maintaining the original test items and requirements of
News
Sand inclusion and sticking defects of steel castings of bolster and side frame
Bolster and side frame are important running parts on the bogie of rail freight car. They bear the gravity of
Scientific
Study on Carburizing defects of lost foam casting steel castings
The lost foam casting method is flexible and convenient in modeling and pouring, especially for products with complex structure. lost
News
Casting defect inspection of medium and large steel castings
According to the thinking method of formulating the inspection standard of JCSS hull steel castings in Japan, medium and large
Scientific
Porosity casting defects in lost foam casting of steel castings
According to the causes, the pores produced by lost foam casting steel castings are divided into the following four categories.
Scientific
Defects in lost foam casting reverse spray casting of steel castings
During the pouring process, due to the excessive amount of gas released by the thermal decomposition of the gas mold
Scientific
Negative pressure cutting casting defects of steel castings in lost foam casting
Main reasons: when the sand box is under vacuum, the external air is sucked into the mold due to the
Scientific
Carburizing casting defects of steel castings in Lost Foam Casting
Carburizing is one of the common casting defects in the lost foam casting process of steel castings. The carburizing casting
News
Effects of casting defects and structural dimensions of heat resistant cast steel liner on its properties
1. internal stress is generated during lining plate casting, resulting in cracks in lining plate; 2. the fracture of the
Scientific
Defect optimization of sand casting coupling parts
The specific optimization measures are as follows: set annular external cold iron in sand core 2. The purpose of this
Scientific
Analysis of cold crack defects in large steel castings
1. Manifestations of cold crack defects Under the joint action of welding stress and other embrittlement factors, the bonding force
Scientific
Defect optimization and result analysis of sand casting coupling parts
Considering the easy realization degree and economic factors of each measure, and using measures 2, 3 and 6, the numerical
News
Traditional casting defect analysis
Firstly, we take the shrinkage porosity defect in steel castings as an example to explore how the traditional foundry solves
Scientific
Analysis of undercut defects of large steel castings
1. Manifestations of undercut defects Undercut is the result of electric arc scouring or melting the base metal near the
Scientific
Fatigue test of casting defects in cast steel joints
1. Fatigue load loading In order to effectively test the influence of multiple casting defects on the fatigue performance of
Scientific
Fatigue analysis of casting defects in cast steel joints
Through the finite element calculation of fatigue strength and safety factor, the changes of fatigue performance caused by different casting
News
Casting defects of cast steel joints
With the continuous improvement of China’s economic strength and construction level, various steel structure buildings with beautiful appearance, high reliability
Scientific
Cause analysis and optimization measures of defects in sand casting coupling parts
1. Cause analysis After preliminary analysis, it is concluded that the main problem in the simulation results of tooling gating
News
The causes of billet continuous casting defects are analyzed
The defects of billet continuous casting mainly include surface defect reconnection, inclusion and scar, scratch and vibration mark. The internal
Scientific
Verification and effect of measures for casting defects of wheel hub steel castings
In order to verify the casting quality effect after process optimization, the trial production of 5 wheel hub steel castings
News
Self made enterprise standard of cast steel large gear to reduce defects
The root cause of exposed defects after tooth milling is that the internal defects after rough machining are not treated
Scientific
Analysis of slag inclusion defects in large steel castings
1. Manifestation of slag inclusion defect Slag inclusion defects are formed by the slag remaining in the weld during welding.
Scientific
Optimization of casting defects of wheel hub steel castings
In order to ensure the quality of wheel hub steel castings, the process scheme is optimized, and 14 65 mm
Scientific
Analysis of simulation calculation results of casting defects of wheel hub steel castings
ProCAST software is used to simulate and calculate the scheme before process optimization of wheel hub steel casting. The judgment