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Construction technology of ductile iron

Construction technology of ductile iron

In terms of high-strength low-alloy ductile iron, in addition to more research on copper and molybdenum, nickel and niobium have also been studied. Although the performance of medium-manganese ductile iron is unstable, it has achieved significant economic benefits in terms of systematic research, production, and application over the years. In addition to medium-silicon ductile iron, the effect of the total amount of Si+Al on the anti-growth ability of rare earth magnesium ductile iron was systematically studied.

22

2021

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07

Casting: Introduction to the Main Properties of Ductile Iron

Casting: Introduction to the Main Properties of Ductile Iron

Casting: Ductile iron obtains spherical graphite through spheroidization and inoculation treatment, which effectively improves the mechanical properties of cast iron, especially the plasticity and toughness, thereby obtaining higher strength than carbon steel.

08

2021

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04

Casting: Composition and introduction of ductile iron

Casting: Composition and introduction of ductile iron

Castings: Ductile iron is a high-strength cast iron material developed in the 1950s, with comprehensive properties close to those of steel. It is precisely because of its excellent properties that it has been successfully used to cast some parts with complex stress and high requirements for strength, toughness, and wear resistance.

24

2021

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03

Foundry: How to solve defects in pump body castings?

Foundry: How to solve defects in pump body castings?

Foundry: The fundamental focus of solving shrinkage porosity defects in pump body castings is "thermal equilibrium." Solutions: 1. Tilting the mold and alloying both provide benefits. Eliminating shrinkage porosity defects in pump body castings is a complex process of understanding and implementation.

09

2021

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03

Foundry: How to inspect the quality of pump body castings?

Foundry: How to inspect the quality of pump body castings?

Foundry: The inspection of pump body castings mainly includes dimensional inspection, visual inspection of appearance and surface, chemical composition analysis, and mechanical property tests. For pump body castings that are more important or prone to problems in the casting process, non-destructive testing is also required. Non-destructive testing techniques that can be used for quality inspection of ductile iron castings include liquid penetration testing, magnetic particle testing, and eddy current testing.

22

2021

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02

Foundry: Introduction to the principles of lathe casting

Foundry: Introduction to the principles of lathe casting

Foundry Vehicle: Principles of Bed Casting Casting 1. Sand mold forging and casting should be given priority. The main reasons are that sand mold forging and casting have lower cost, simpler production technology, and shorter production cycle than other methods. When wet molding cannot meet the requirements, consider using clay sand surface dry sand molds, dry sand molds, or other sand molds.

21

2021

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02

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