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Foundry: How to reduce losses if defects occur in castings?

Foundry: How to reduce losses if defects occur in castings?

Foundry: Methods to reduce losses due to defects in castings. During the casting process, defects such as porosity, pinholes, slag inclusions, cracks, and pits often occur due to various factors.

13

2021

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02

Foundry: Introduction to Raw Materials and Functions of Ductile Iron

Foundry: Introduction to Raw Materials and Functions of Ductile Iron

Foundry: Cast iron is an iron-carbon alloy with a carbon content greater than 2.11%. It is obtained by high-temperature melting and casting of industrial pig iron, scrap steel, and other steel and alloy materials. In addition to Fe, it also contains other elements. The carbon in cast iron precipitates in the form of graphite. Cast iron in which the precipitated graphite is in the form of flakes is called gray cast iron, cast iron in which the graphite is in the form of vermicular is called vermicular cast iron, cast iron in which the graphite is in the form of flocculent is called malleable cast iron, and cast iron in which the graphite is in the form of spheres is called ductile cast iron.

11

2021

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02

Foundry: What problems usually occur with ductile iron?

Foundry: What problems usually occur with ductile iron?

Foundry: Ductile iron is a high-strength cast iron material developed in the 1950s, with comprehensive properties close to those of steel. Based on its excellent performance, it has been successfully used to cast some parts with complex stress and high requirements for strength, toughness, and wear resistance. It has rapidly developed into a widely used cast iron material, second only to gray cast iron. The so-called 'iron replacing steel' mainly refers to ductile iron.

09

2021

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02

Foundry: Precautions for Repairing Agricultural Machinery Castings

Foundry: Precautions for Repairing Agricultural Machinery Castings

Precautions for repairing agricultural machinery castings: 1. Any defects can be removed by grinding, but the dimensions after grinding should meet the dimensional tolerance requirements of the casting.

07

2021

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02

Foundry: Introduction to the reasons affecting the quality of agricultural machinery castings

Foundry: Introduction to the reasons affecting the quality of agricultural machinery castings

Foundry: The quality of agricultural machinery castings has a significant impact on the performance of mechanical products. For example, the wear resistance and dimensional stability of equipment castings directly affect the accuracy and service life of machine tools. The size of the impeller, the cavity of the housing and hydraulic parts, the accuracy of the molding line, and the surface roughness of various pumps directly affect the working efficiency, energy consumption, and cavitation development of the pump and hydraulic system.

23

2021

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01

Foundry: Introduction and process requirements of sand mold agricultural machinery castings

Foundry: Introduction and process requirements of sand mold agricultural machinery castings

Foundry: Sand mold agricultural machinery castings effectively inject liquid metal into the mold made of compacted molding sand. After solidification and cooling, the casting method of destroying the mold and taking out the casting is called sand mold casting.

20

2021

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01

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