Today we are going to understand the function of heat resistant steel castings and analyze the elements and their functions. Elements formed by ferrite such as chromium, aluminum and silicon can promote the formation of dense oxide film on the metal surface at high temperature to prevent further oxidation, and are the main elements for improving the oxidation resistance of steel and resisting...

Shenynang Gongda Heavy Equipment Manufacturing is a professional manufacturer and supplier of Ni-hard iron castings. Now let's talk about the production of this casting. Interested friends will go ahead and look at it. 1. Casting process Nickel hard cast iron can be cast by sand mold or metal mold with linear shrinkage rate of 1.6% ~ 2.0%, usually 1.8%. The casting process is the same as that...

Today we will discuss some difficult problems in the production of heat resistant steel castings. China has been producing heat resistant steel since 1952. Later, some new low-alloy hot-strength steels were developed, thus increasing the working temperature of pearlite hot-strength steels to 600 ~ 620℃, and some new low-chromium nickel oxidation resistant steels were also developed....

The casting temperature of Ni-hard Iron Castings should be higher than that of gray cast iron. Nickel hard cast iron was developed and applied in the 1930s. With the advent of nickel hard cast iron, alloy white cast iron began to replace non-alloy white cast iron, which is an important turning point in the development history of anti-abrasive wear materials. Production of Nickel Hard Cast Iron...

Wear is a complex field and there are numerous types of wear. Different types (and combinations) of wear mechanisms requires different approaches to the material selection and design. Which types of wear do wear resistant castings fall into? Abrasive Wear – occurs when a hard-rough surface slides across a softer surface. Generally, to reduce abrasive wear you need a harder material....

In recent years, with the growth of population and the progress of society, the discharged waste and pollutants exceed the standard seriously, exceeding the capacity of the earth itself to consume itself. Sustainable development has become an urgent need. Especially for foundry, foundry in our country is a traditional basic industry, at the same time, it is also a high investment, high...

Ni-hard Iron Castings can be produced in cupola, but for brands with higher chromium content, electric furnace should be used to reduce the burning loss of chromium, and Cr18Ni9Ti steel scrap can be used for production, which can reduce the cost. The process is characterized in that the molten iron is superheated to 1450℃, the pouring temperature is 1350-1400℃, the linear shrinkage is about...

If you want to know the wear-resistant lining plate, you must start from the most basic. Today, Xiao Bian will share with you the reason why wear-resistant lining boards are so popular. If you want to know about this, please follow Xiao Bian to have a look. 1. The wear-resistant lining board has very high safety during installation and operation. The performance of the wear-resistant lining...

If you want to know the wear-resistant lining plate, you must start from the most basic. Today, Xiao Bian will share with you the reason why wear-resistant lining boards are so popular. If you want to know about this, please follow Xiao Bian to have a look. 1. The wear-resistant lining board has very high safety during installation and operation. The performance of the wear-resistant lining...

The quality production of wear resistant steel castings is the production direction that has attracted much attention in the steel market nowadays. Shenyang Gongda heavy equipment manufacturing co., ltd. is an experienced steel casting production enterprise. the company pays attention to the guarantee production of chemical composition of steel castings. the following is a brief summary. For...