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Factors affecting oxidation of forgings
The oxidation of forgings is mainly affected by the chemical composition of the heated metal and the internal and external factors of the heating ring (such as furnace gas composition, heating temp...Read more -
Methods for inspection of large forgings
Due to the high cost of raw materials for large forgings, as well as the production process, if defects occur, they will affect the follow-up processing or poor processing quality, and some affect ...Read more -
Injection molding of stainless steel flanges
Stainless steel flanged ball valve, globe valve, gate valve when used, only for fully open or closed, do not allow to do flow regulation, so as to avoid sealing surface erosion, accelerated wear. G...Read more -
What’s different killed steel and Rimmed steel!!!
Killed steel is steel that has been completely deoxidized by the addition of an agent before casting such that there is practically no evolution of gas during solidification. It is characterized by...Read more -
How is the flange welded?
1. Flat welding: only welding the outer layer, without welding the inner layer; Generally used in medium and low pressure pipelines, the nominal pressure of the pipeline is less than 0.25mpa. There...Read more -
There are problems in the processing of stainless steel forgings
Weld defects: weld defects are serious, manual mechanical grinding processing method is used to compensate, resulting in grinding marks, resulting in uneven surface, affect the appearance. Inconsis...Read more -
The reason of sliding or crawling of hydraulic cylinder piston and the treatment method
Hydraulic cylinder piston sliding or crawling will make the hydraulic cylinder work instability. Do you know the reason for it? Do you know what to do with it? The following article is mainly for y...Read more -
Flange features and use attention
Flanges are disk-shaped parts most commonly used in piping. Flanges are used in pairs and with matching flanges on valves. In pipeline engineering, flanges are mainly used for the connection of pip...Read more -
How to improve the production efficiency of forging heat treatment
【DHDZ】As we all know, heat treatment is an important link in the forging process, related to the hardness of forgings and other problems, so how to improve the production efficiency of heat treat...Read more -
What should be noted in the examination of die forgings before heat treatment?
The inspection before solution heat treatment is a pre-inspection procedure to check the finished product's surface quality and dimensions according to the technical conditions, die forging drawing...Read more -
Different connection modes of flange elbow
Flanges, or flanges, are symmetrical disk-like structures used to connect pipes or fixed shaft mechanical parts. They are usually fixed with bolts and threads. Including flange and stainless steel ...Read more -
The processing of stainless steel flange needs to understand and pay attention to some problems
1, weld defects: stainless steel flange weld defects are more serious, if it is to use manual mechanical grinding treatment method to make up, then the grinding marks, resulting in uneven surface, ...Read more
