How to deal with serious scour and sand sticking at the interface of casting coating application and repair sprue
First of all, it should be clearly pointed out that it is absolutely wrong to apply water coating (or cement […]
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How to clean casting coating without shelling
According to the traditional theory, there are two conditions for coating shelling: one is that the inner coating does not
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Determination of the type and method of the casting mold for the casting parts of the support platform
The mold consists of pouring molten metal into the mold (same as ingot process), and the mold cavity provides the
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Machining performance of engine cylinder block and cylinder head
The poor machinability is a common problem of Engine Castings in China, and it is also the biggest gap between
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Structural technology analysis of casting parts of support platform
The most important part of the casting process design is the process plan, which mainly includes two parts: part structure
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Measures to prevent shrinkage and porosity in ductile iron casting
1.The content of carbon, silicon, manganese, rare earth and magnesium must be appropriate. High carbon content can reduce the tendency
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Risk of valve quality control brought by admittance system of casting industry
In recent years, the voice of environmental protection has been growing, and the government’s requirements for pollution rectification in the
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Material selection of casting parts of support platform
Casting technology is the technology and method to produce castings by applying casting related theory and system knowledge. Including casting
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Characteristics and remedy of air pocket defects in sand casting
Defect characteristics and detection methods The smooth and glossy dimples and pits on the surface of castings where chill is
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Design of foundry equipment for fixture casting
Casting process equipment is the general name of the mold and device used in the process of molding, core making
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How to deal with the cracking of casting coating after drying
In addition to the poor strength and crack resistance of additives which can not overcome the drying shrinkage force, there
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Casting process of EPC for anode steel claw（black area）
The black area is the casting part, which is divided into two parts: embedded box and casting. The embedding process
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The design of the air hole in the fixture casting
The vent hole is used to discharge the gas in the cavity, improve the filling ability of the liquid metal,
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The spheroidizing decay defect of ductile iron casting and its prevention
The characteristics of spheroidization decline: good spheroidization before furnace, poor spheroidization on castings; or good spheroidization of castings poured first
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Sand casting and precision casting process plan of nuclear power valve
In order to stabilize the casting process quality, there are strict regulations on the casting process, material, process and quality
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Casting technology of EPC for anode steel claw（yellow area）
The yellow area is the coating part. The first step in the yellow area is to mix the coating, and
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Engine cylinder block and cylinder head produce casting leakage
Leakage refers to the leakage phenomenon of the cylinder block (cylinder head) during the pressure test (water pressure / air
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Design of cold iron casting for fixture casting
In order to increase the local cooling speed of the casting, the metal block placed in the cavity and the
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Casting process of EPC for anode steel claw(white area)
EPC is divided into white area, yellow area and black area, and each part is closely linked and highly related.
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Design of casting riser for fixture casting
Riser is a cavity used to store liquid metal in the mold. It supplies metal when the casting is formed,
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How to deal with the insufficient strength of casting coating
The strength of casting coating can not be divided into two situations: one is the normal drying strength, the other
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Casting technology of EPC for anode steel claw
The anode steel claw for electrolytic aluminum is also called electrolytic claw. There are parallel three claws, four claws, three-dimensional
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Engine cylinder block and cylinder head produce casting cleanliness
Modern engines have very strict requirements on cleanliness. For cylinder block (cylinder head) castings, only a few grams (g) of
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Design of gating system for fixture casting (part 2)
Calculation of resistance cross section The total sectional area a can be calculated according to the following formula =Q/KTL in
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Defect characteristics and remedy of lamellar oxidation spot in sand casting
Defect characteristics and detection methods It is often found after sand cleaning or sand blasting of castings that the layered
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Design of gating system for fixture casting (part 1)
The pouring system is a channel to guide liquid metal into the mold cavity, which is composed of sprue cup,
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Characteristics, causes and prevention of casting cold insulation defects
Features: The appearance of the casting is incomplete, with a crack like gap or broken flow, and the metal edge
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Design of sand core for fixture casting
The function of sand core is to form the inner cavity, hole of casting and the part that can’t produce
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Defects of sand inclusion and scab in steel casting and preventive measures
Sand inclusion refers to that there is a layer of metal lump or sheet on the surface of the casting,
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Surface casting defects of die casting (part 3)
7 Discoloration and spots (1) characteristics: There are different colors and spots on the casting surface. (2) Causes: ① Improper