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Sand casting core making operation guide
1.Pattern preparation Wooden molds, metal molds and epoxy resin plastic molds can be used. For castings with low requirements for single pieces, disposable molds made of foam plastic can also be used.…
How Important The Axle Box to The Railway Locomotive?
Overview of The Locomotive Axle Box In the speeding rail transit system, if the bogie is compared to the “legs” of a train, the axle box body is the key “joint” that…
The main technical parameters of furan resin sand casting raw materials
1.Furfuryl alcohol content The furan resin with acid as a catalyst generally contains more than 50% furfuryl alcohol. The most commonly used is urea-formaldehyde furfuryl alcohol resin. As the furfuryl alcohol content…
How Do Railway Signals Work?
Silent conductor rail transit: mystery decoding railway signal system In a speeding train steel orbit, like precision operating hour meter, behind its security and efficiency, hides a set of complex and the…
Research & Application of High-strength and high-toughness ductile iron Materials for Wind Power Castings
In order to obtain low-temperature ductile iron materials with higher strength and toughness, alloying elements Ni and Nb were added to the QT400-18AL material for alloying. Through the tests of the mechanical…
The development history and current situation of self-hardening furan resin sand
Overview of the development of self-hardening furan resin sand Furan resin was first used as a binder for castings in the United States in 1958. At that time, it was used as…
How Does A Power Steering Gear Box Work?
The mystery of the rail transit power heart: gear transmission system depth resolution When the steel dragon is in orbit and outdated, hidden in the bottom of the car body gear precision…
What Are Advantages of Wind Power?
Overview of wind power of ecological and economic benefits The force at the core drives a green future under the dual challenge of climate change and energy transformation; wind power, with its…
Introduction to resin sand casting process
The concept of self-hardening furan resin sand The name of self-hardening furan resin sand comes from the English word Furan No-Bake process, which means that furan resin is used as a binder…
Into water glass investment casting: process, alloy and application knowledge
Water glass investment casting is also known as “lost wax casting”. It is a method of obtaining castings by coating several layers of refractory materials on the surface of the wax mold.…
How Much Energy Can A Giant Wind Turbine Generate?
Overview In vast grasslands and the blue sea border, the past white giant is a rotational blade with an elegant attitude; the modern version of the “windmill” is quietly changing the human…
Unlock high-speed EMU bogie technology: From design to performance
The bogie is one of the most important components of a locomotive. Whether its structure is reasonable directly affects the running quality, power performance and driving safety of the locomotive. The rapid…