subject: Unique Impact Crusher Made In Hongxing [print this page] Considering the service life of the impact crusher, Hongxing Mining Machinery has special treatment in the process of the material of the liner. Before the high-manganese steel material is made into the liner of the impact crusher, it needs to go through water toughing. In this process, the heating rate is one of the most important reasons to affect the final quality of the materials.
Under normal circumstances, when the heating temperature is below 400 , the cast structure dose not change significantly. The needle-like carbide precipitates when the temperature is around 450. Carbides significantly increase at 500. The carbide precipitation is the most at about 550. The length of the needle-like carbides gradually becomes shorter and the layers becomes generous when the temperature is 600, . Above 700 , the carbide castings in the cast structure begin to dissolve in the austenite. At the beginning, the intragranular acicular carbide first dissolves. At 800, most of the intragranular carbides disappear. On the grain boundaries and near the grain boundary, there still be the undissolved carbides. Carbides on grain boundaries at more than 850 become thinner and narrower to broken mesh due to the gradual dissolution of the carbides. The residual carbides on the grain boundaries above 900 gradually disappear and become isolated state of agglomeration. The undissolved carbides gradually shrink with the increasing temperature. Above 950 , all dissolve in the austenite.
After entering into 21st century, Chinese industry experienced ever increasing developing speed and now is the fastest developing country. In the process of industry development, stone crusher plays critical role and greatly contributes to the machinery industry progress. At the same time, the crusher field becomes one of the most successful examples in China. After researching machinery industry present development situation at home and abroad, the trend and developing direction of machinery technology, especially the advanced crushing and ore grinding technology, we found that it is very important to develop and improve manufacturing level for further step.
The smooth running of the economy has significant relationship with country's production and construction, as well as people's basic necessities. In recent years, China is under inflationary pressures, people pour out their endless grievances in the process of rising prices; although our government have taken many measures, the macro-control effect is not obvious.
Prior to the implementation of the steady-growth policy, companies need to do all preparation to meet the fiery situation, especially the construction machinery industry, which more closely related to construction, whether the deployment of human resources, or market expansion, or technology and capital investments. As a major manufacturer of mining machinery, Hongxing has been well prepared to respond to the call of the country to meet the investment boom that the steady growth will brings.
