Noticias

Noticias

Duplex stainless steel performance characteristics

Duplex Stainless Steel (DSS): Structure and Composition Duplex stainless steel (DSS) refers to stainless steel in which ferrite and austenite each account for approximately 50% of the microstructure...

Formation and prevention of shrinkage cavities and porosity in lost foam casting of ductile iron parts

Shrinkage cavities and porosity are common defects in lost foam casting of ductile iron parts, which are mainly caused by volume shrinkage and insufficient shrinkage compensation during...

Formation and prevention of wrinkle defects on the surface of ductile iron parts in lost foam casting

Wrinkle defects often appear at the last place where the molten metal flows or the “cold end” of the liquid flow, generally appearing at the top of the casting, vertical sidewalls or dead...

Causes and countermeasures of blistering defects on the surface of cast iron parts produced by lost foam

Causes Mold aspect: the gas emission of the mold material is too large, and a large amount of gas is released during pouring. If there is no time to discharge, bubbles will form on the surface of the...

Causes and countermeasures of shrinkage and pore defects in medium carbon steel

Causes Solidification shrinkage: The carbon content of medium carbon steel is between 0.25% and 0.60%. When solidifying, the liquid state changes to solid state and the volume shrinks. If the liquid...

Free-cutting Carbon Steel Overview

Free-cutting carbon steel is a special category of carbon steel that has been specially engineered to have enhanced machinability. Machinability refers to how easily a metal can be cut, shaped, or...

Introduction to wire feeding spheroidization process

1. Basic principle of wire feeding spheroidization process Wire feeding spheroidization means wrapping a spheroidizer in a steel sheet using a winding device. The steel sheet has specific thickness...

Induction furnace cast steel melting deoxidation and refining method

1. Pre-deoxidation Pre-deoxidation time: When the steel material has been completely melted, but the temperature is not high, generally about ≥1550℃, it is the best time for pre-deoxidation. Selection...

Rapid remelting method of cast steel in non-vacuum induction furnace

1. Preparation before smelting: Batch: Use high-quality profile scraps or refined continuous casting bars with the same or similar composition as the required steel grade as the main material...