Author name: zhycasting

The reason for the blackening of the stainless steel plate after the treatment of the weld bead treatment fluid is

There are many types of ultrasonic probes with different performances. Therefore, according to the shape of the ultrasonic testing object,

(1) The slow cooling rate is not only related to the design, pouring system and metal composition, but also related

Causes and hazards: if the carburizing is heated sharply, the temperature is too high, or if the solid carburizing is

Carburizing, like other chemical heat treatment, also includes three basic processes. 1 decomposition: the decomposition of carburizing medium produces active

When the melting operation is small, it will have an impact on the structure of the remaining particles. For different

Causes and hazards: if the carburizing is heated sharply, the temperature is too high, or if the solid carburizing is

Carburizing: it is a kind of surface treatment of metal. Most of the carburized parts are low carbon steel or

In essence, the coarseness of grains and the chemical composition of metals are related to the coordination of cooling rate,

The phenomenon of wet flake falling off occurs frequently in some units during the drying process, especially the thicker the

（1） Investment casting: Easy to manufacture wax mold The holes and grooves on the casting should not be too small

Molding sand Only when the displacement of mold wall caused by molding sand is enough to increase the section size

The pinhole is different from the bubble. The bubble usually refers to the “bubble” of > 1mm, the pinhole (pinhole)

Bubbles are caused by the following reasons – if the cause is not clear, there will be wars: ② There

Following the successful model of East Asian economies, India’s new government will attract foreign direct investment (FDI), set up world-class

The most common defect in the production of nodular cast iron is the subcutaneous porosity, which is most likely to

In the production of steel castings by EPC, the surface carburization of castings has been a controversial topic. When EPS