Knowledge

Causes and prevention methods of orange peel defects on the surface of coated sand-ash cast iron 1. Characteristics of orange peel defects on coated s

The relationship between the shrinkage rate of steel castings and the generation of crack defects The 63rd training of Lao Lu foundry furnace workers

I. Why do the tensile strength and hardness of ductile iron parts not improve after normalizing? 1. Raw materials Unqualified chemical composition: To

Uneven chemical composition Composition segregation: During the casting process, due to the complexity of the solidification process, chemical composi

The following stresses will be generated when the casting solidifies: Casting thermal stress Causes of casting thermal stress Casting structure and si

Silicon heat-resistant cast iron Silicon heat-resistant cast iron is a type of heat-resistant cast iron with a long history. The following is an intro

Aluminum heat-resistant cast iron Aluminum heat-resistant cast iron is an important heat-resistant material. The following is a related introduction:

In the large family of stainless steel, 304 steel and 304L steel are often regarded as "twin brothers". They look similar and are very commo

Material costs account for more than 60% of the costs of most foundry companies, and in the machinery industry, hardware manufacturing and other indus

In the new era and new journey, the key task is to comprehensively promote the construction of a strong country and the great cause of national rejuve

In the machinery industry, for parts that require sealing, using inappropriate sealing methods can lead to varying degrees of leakage during operation

During the drawing process of high-speed steel wire, intense friction and compression occur between the wire and the die, resulting in severe plastic