Formation mechanism of shrinkage cavity and porosity casting defects
Shrinkage cavity and shrinkage porosity casting defects are common defects in casting production. They are holes formed due to the […]
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casting porosity
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Preventive measures for casting porosity of six cylinder block
As an important part of marine engine, 6T cylinder block has very strict technical quality requirements, excellent tensile strength, high
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Factors affecting casting defect volume of shrinkage cavity and porosity
The tendency of shrinkage cavity and porosity casting defects is related to the solidification mode. During layer by layer solidification
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Casting defects of precipitation porosity in bucket teeth castings
The molten steel contains gas in the melting process, which requires pre deoxidation and final deoxidation. If the deoxidation is
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Porosity casting defects of bucket teeth
Porosity is one of the most common casting defects in castings. According to the different formation mechanism, it is mainly
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Invasive porosity casting defects of bucket teeth castings
Take the bucket tooth sleeve of loader as an example (as shown in Figure 1). The single blank mass of
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Prediction of shrinkage cavity and porosity casting defects in sand castings
The numerical simulation of sand casting defects is based on the temperature field and shrinkage cavity and porosity criteria during
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Effect of shell preheating temperature on shrinkage cavity and porosity of castings
Parameter setting: when the pouring temperature is 1550 ℃ and the pouring speed is 30mm / s, the shell preheating
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Prediction criterion of shrinkage cavity and porosity casting defects in investment casting
There are many reasons for casting defects. Gating system, pouring temperature and flow speed of molten liquid, casting size and
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Effect of pouring temperature on shrinkage cavity and porosity of castings
Parameter setting: when the pouring speed is 30mm / s and the shell preheating temperature is 600 ℃, the pouring
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The solidification process of nodular iron castings leads to shrinkage cavity and porosity
At present, in the production of nodular iron castings, there are often shrinkage porosity and shrinkage cavity, and there are
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Solution to the casting porosity defects often occurred in iron mold sand coated casting process
1. Increase the gate section size in the gating system Gate size in main core: changed from 33.5 / 34.6
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Simulation results and analysis of shrinkage porosity and shrinkage cavity in sand casting of mud pump body
Shrinkage porosity and shrinkage cavity are the most common defects in the process of sand casting, and they are also
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Iron mold sand coating process and common quality problems in original mold casting
1. Original mold design structure The original mold structure design of t9000-c iron mold sand coated casting cylinder block in
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Shrinkage porosity and shrinkage cavity in steel castings
During solidification, the steel casting will produce liquid shrinkage and solidification shrinkage. When the feeding system cannot provide sufficient liquid
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Cause analysis of porosity defects in green sand casting of cylinder head for heavy vehicle
During the mold test of the cylinder head, the casting air hole defect on the oil cover shell surface is
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Causes of casting porosity in sand coated iron mold casting cylinder block
Six cylinder block is an important part of marine engine. The casting structure is shown in the figure, and its
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Selection of parting surface and pouring position of nodular iron main reducer shell cover to avoid shrinkage defects
For the horizontal box free molding line, the parting surface of the production main reducer shell cover is generally selected
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Shrinkage cavity and porosity defect of nodular iron main reducer shell cover
The main reducer housing cover is an important component of heavy truck axle, which is matched with the main reducer
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Prevention of shrinkage porosity of nodular iron castings
1. Chemical composition control The chemical composition of nodular cast iron for wind turbine shall be strictly controlled, especially C,
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Technological measures for reducing casting porosity defects in green sand casting of heavy vehicle cylinder head
1. Improvement of gating system 1.1 The intermediate injection water inlet is improved to the top injection water inlet At
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Elimination of casting porosity in stainless steel butterfly valve body and control of melting and pouring temperature
After SAF2507 is smelted to 1 670 ~ 1 700 ℃, turn off the power supply and let it stand
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Identification of casting pores in super duplex stainless steel butterfly valve body
The valve body of seawater butterfly valve with nominal size of DN1200 is made of 00Cr25Ni7Mo4N, with a gross weight
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Elimination of casting porosity in stainless steel butterfly valve body and control of steelmaking raw materials
(1) Proportion control of new material and returned material. The main chemical composition of SAF2507 super duplex stainless steel is
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Analysis on the formation of casting pores in the valve body of super duplex stainless steel butterfly valve
(1) Cause analysis of formation of porosity in invasive casting. The total amount and rate of gas produced by molding
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Prevention and treatment of casting porosity in sand coated iron mold cylinder block casting
1. Increase the section size of the internal sprue In order to reduce the large amount of gas generated by
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Control of ambient temperature and humidity for eliminating casting pores in stainless steel butterfly valve body
The curing rate of resin self hardening sand increases with the increase of ambient temperature (including raw sand temperature). When
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Casting porosity of super duplex stainless steel butterfly valve body
Super duplex stainless steel (00Cr25Ni7Mo4N, French brand SAF2507) is widely used in nuclear industry, such as valve body, main coolant
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Prevention method of porosity in cast iron
Cast iron castings often have various casting defects. How to prevent these defects has always been the concern of casting
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Analysis of common defects in castings
Casting porosity This is a small cavity formed by the gas which can not escape during the solidification of metal.