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
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Dimensional tolerance of fixture casting
Dimensional tolerance of castings refers to the difference between two allowable limit dimensions of nominal dimensions of castings. Within two
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Prevention of sand hole and casting slag defects in cast iron
Features: small holes filled with mold (core) sand inside or on the surface of defects are called sand holes. If
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Determination of casting process plan for fixture casting
Production conditions, structure and technical requirements of fixture Product production nature – mass production Part material – 35Cr The part
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Raw materials for green sand in sand casting
Green sand is composed of original sand, clay, additives and water in a certain proportion. The commonly used feeding sequence
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History and development of investment casting technology in China
Lost wax casting is now called investment casting. It is a kind of casting technology with little or no cutting.
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Characteristics of metal casting, sand casting and die casting
Casting can also be divided into gravity casting and pressure casting according to the pouring process of liquid metal. Gravity
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The engine cylinder block and cylinder head produce the casting veins
Usually in the inner surface or hot spot of the casting, such as the water jacket cavity of the cylinder
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Surface casting defects of die casting (part 2)
4.Casting deformation (1) characteristics: ① Overall deformation or local deformation; ② the geometric drawing of the die casting is inconsistent.
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Characteristics of wet mold and dry mold sand casting
Clay sand mold can be divided into wet mold, dry mold and surface drying mold. The main differences among the
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Casting process design of casting mould
In casting production, mold is very important. All kinds of process knowledge we talked about before should be included in
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Properties of good casting sand
The material used to make sand mold is called molding material, the material used to make sand mold is called
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Casting process pouring riser, chill and cast steel bar
Using riser, chill and cast steel bar to obtain high quality castings is a common technological measure in foundry production.
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The engine cylinder block and cylinder head produce casting sand holes
Sand hole is also a common defect of cylinder block (cylinder head) casting, which is often found on the upper
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The main factors of cracks in aluminum alloy wheel during low pressure casting
For the same alloy, whether the hub cracks or not often depends on the hub structure, process parameters and mold
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Surface casting defects of die casting (part 1)
1 casting strain (1) characteristics: ① Along the opening direction, the surface of the casting shows a line like scratch
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Sand casting – machine modeling
Machine modeling — the molding machine completes the main actions of sand filling, compaction and touching during the molding process.
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The explanation of the type of gating system in casting process
(1) According to the position of the choke section A closed gating system The closed gating system refers to the
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Prevention methods of non spheroidizing or bad spheroidizing defects of ductile iron parts
Features: the fracture surface of the casting is gray black, and the mechanical properties are obviously low. Through metallographic examination,