High carbon concentration in casting production and its prevention
Causes and hazards: if the carburizing is heated sharply, the temperature is too high, or if the solid carburizing is […]
Causes and hazards: if the carburizing is heated sharply, the temperature is too high, or if the solid carburizing is […]
The foundry technology developed earlier in China. During the period of Shangzhou, the foundry technology in China was quite developed
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. All kinds of smelting furnace, automatic pouring machine, molding line, core making center, sand mixer, sand processing equipment, sand
Hot crack is a kind of crack defect that occurs at high temperature during the formation of gray iron castings.
(1) Investment casting: Easy to manufacture wax mold The holes and grooves on the casting should not be too small
★ 4.1 cast alloy materials Aiming at strengthening and toughening, lightening, precision and high efficiency, new cast iron materials are
The foundry technology developed earlier in China. During the period of Shangzhou, the foundry technology in China was quite developed
The factors influencing the surface carburization of EPC steel casting include the composition of molten steel, the thickness of casting
Asphalt paint coating Asphalt paint coating is used to transport gas pipeline. Preheating the pipe before painting can improve the
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)
1. Cast steel, cast iron, stainless steel casting, non-ferrous alloy casting, aluminum casting, copper casting, ductile iron casting, wear-resistant casting;
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
Aluminum alloy die-casting products are mainly used in electronics, automobile, motor, home appliances and some communication industries. Some high-quality products
On the surface of the casting, all or part of the surface is covered with a layer of metal (or
In the production of steel castings by EPC, the surface carburization of castings has been a controversial topic. When EPS
(1) The failure of the sequential solidification system to realize the sequential solidification is usually the cause of the coarse
The ultrasonic probe is just like its eyes for ultrasonic testing. The probe has a great influence on the test
Defect characteristics and detection methods There are sand grains in the casting, which can appear in all parts of the
What is a ball valve? Ball valve is a kind of liquid level measurement and control product. It is composed
Ball valve installation: It must be confirmed that the pipeline and valve have been cleaned before operation. The actuator operation
Aluminum alloy die-casting products are mainly used in electronics, automobile, motor, home appliances and some communication industries. Some high-quality products
The bulging of casting coating is usually the size of fingernail or larger area, which often occurs after the last
Grain coarseness of castings refers to the defect that the grain structure is too coarse to be suitable for application
The valve rod of bellows gate valve adopts double sealing structure of bellows and packing to ensure no leakage sealing