ironfoundry

Sand Casting

Sand casting means the production processes that need sand as the main molding material, it also means the casting products made by these processes. 1. Casting Process We need make wooden, resin or metal patterns according to the drawings or samples... Read >

Cast Iron Costs, Sand Casting Production

As for sand castings, the cast iron production costs include many aspects, such as pig iron prices, manpower costs, material costs, machining, heat treatment, painting, packing, foundry coke and sand costs. 1. pig iron costs Pig iron is the most imp... Read >

The Application of Hardness Tester for Metal Casting

1. Brinell hardness tester Brinell hardness is the first option for metal casting hardness test, especially for the relatively coarse grain gray iron castings, Brinell hardness tester is the only choice, and we need to try to choose 3000kg force, 10mm ... Read >

What Can Affect the Quality of Iron Castings?

The quality of iron castings is very important to the development of an iron foundry, and there are many elements that influence the quality of iron castings, such as design process, casting process, the quality of raw materials and technological operatio... Read >

How to eliminate sand hole and skin pores in ductile iron castings?

Skin pores and sand hole are common metal casting defects, which has a serious impact on their performance. How to eliminate sand hole and skin pores in ductile iron casting? According to the experience of Dandong Foundry, we will start from factors to lo... Read >

The problems of cast foundry in China

Cast foundry as an important branch of heavy industry, makes a great contribution to national economic development. It is important to understand of the development of China's foundry industry rationally, objectively and fairly. 2010, China's casting p... Read >

Powder coating for iron castings

Powder coating is a 100% solids powder coating without solvent-free. It has a solvent-free, non-polluting, recyclable, environmental protection, saving energy and resources, reduce labor intensity and high mechanical strength. Types of powder coatings ... Read >

Difference of gray cast iron and ductile cast iron

Many buyers were confused about the difference of gray cast iron and ductile cast iron, which is also called as nodular cast iron. Herein, we make a brief introduction to their main differences. 1. Physical property The main difference will be their... Read >

What is going on with the iron foundries in south China?

From the beginning of 2011, more and more clients are transferring their orders to our foundry, so we are wondering what is going on with those iron foundries in south of China. As we know, there are many good iron foundries in South of China, especial... Read >

Metal Casting Processes in China

Some clients wanted us to introduce the main metal casting processes in China, then herein, we make a brief introduction to their characters, differences and applications. 1. Sand Casting Process Sand casting processes mainly include green sand, res... Read >

The type of iron foundries in China

As everyone knows, China has become the largest metal casting manufacturing country, and have thousands of various metal foundries. Herein, we try to classify the iron foundries into five main types, and hope it could give an approximate concept to the bu... Read >

How to calculate cast steel cost?

The calculation of cast steel parts are very complex. It need many professional knowledge to cast steel production processes, material composition and costs etc. However, we could introduce some main aspects for buyers to get an approximate estimation to ... Read >

Typical Defects of Ductile Iron Castings

The following typical defects of ductile iron castings are based on the experiences of process engineers from Dandong Foundry in China. We hope these information could be helpful for other iron foundries and casting buyers. 1. abnormal and degraded nod... Read >

How to calculate the price of rough iron castings

As a buyer for iron castings, you may always wonder how to estimate the reasonable prices of your iron casting parts, to evaluate the quotations from your potential suppliers. Since the machining costs are more complex, so we can not make it clear in one ... Read >

Where to buy cheap iron castings

As for a buyer for iron castings, the prices are always the most important consideration. In my works in iron foundry for many years, I was also wondering if our cast iron prices were the cheapest in the world. Unfortunately, we were not. There are many i... Read >