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What are the characteristics of ductile iron?

What are the characteristics of ductile iron?

In ductile iron, graphite is embedded in the basic structure of steel. Spheroidal graphite can only cause small fractures in the material, so ductile iron has high strength and good elongation at break. Among various cast irons, the properties of ductile iron are close to those of steel. The elongation at break of this cast iron can be improved by annealing, and the strength can be improved by quenching and tempering. Spheroidal graphite cast iron can also be surface carburized. Spheroidal graphite cast iron contains spheroidal graphite and has high strength and toughness.

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2022

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04

What is a valve body? What are the commonly used materials?

What is a valve body? What are the commonly used materials?

The common materials for valve bodies are as follows: 1. Gray cast iron is suitable for low-pressure valves with working temperatures between -15℃ and +200℃ and a nominal pressure of PN≤1.6MPa.

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2022

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04

What are the main valve body materials?

What are the main valve body materials?

Common valve body materials mainly include gray cast iron, black heart malleable cast iron, ductile iron, carbon steel, low-temperature carbon steel, and alloy steel. 1. Gray cast iron is a type of cast iron. It exists in cast iron in the form of carbon flake graphite. The fracture is gray. It has good casting and cutting performance and good wear resistance. It is used to manufacture shelves, boxes, etc.

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2022

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04

What are the reasons for the damage of the transmission valve body?

What are the reasons for the damage of the transmission valve body?

The transmission valve body is located above the transmission oil pan. You can see the valve body after removing the oil pan. Only automatic transmissions have valve bodies; manual transmissions do not. As one of the components in the transmission, the transmission valve body is a hydraulic control unit that converts electronic control into hydraulic pressure, which promotes the shifting of high and low gears in the transmission. The transmission valve body can control the shift mechanism by switching the oil circuits in the valve body.

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2022

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03

The transmission valve body needs to be cleaned and inspected regularly.

The transmission valve body needs to be cleaned and inspected regularly.

The valve body is one of the main components of a valve. If the pressure levels are different, there will be different mechanical manufacturing methods. The transmission valve body is the part that controls the shifting between high and low gears in a vehicle's transmission. If the transmission valve body is damaged and needs to be repaired, the transmission needs to be disassembled and the transmission valve body removed. Speaking of the internal mechanical parts of the transmission, it has long been overhauled at the maintenance level.

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2022

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What are the leakage and maintenance of valve body and bonnet?

What are the leakage and maintenance of valve body and bonnet?

A valve is a control component in a pipeline fluid transportation system, used to change the pipeline cross-section and the direction of the medium flow. It has the functions of guiding, cutting off, throttling, check, diverting, or overflow pressure relief. Therefore, valve leakage is our primary concern regarding valve quality. Today, let's introduce the causes of valve body and bonnet leakage in valve components and their maintenance methods.

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2022

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