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Plasma Nitriding Treatment of High Alloy Steel For Bearing Parts
Bearings that operate under high temperature and high speed conditions for a long time need to meet high reliability requirements. Therefore, the cleanliness of the materials used in this type of bearing is much better than that of ordinary bearing steel. This kind of clean steel can resist peeli...
Engineering Application Of Sic Ceramics
Sic ceramics have excellent high temperature strength and hardness, good oxidation and corrosion resistance, and are considered to be a wear-resistant and corrosion-resistant structural material with wide application prospects. For example, as high-temperature wear-resistant components and corros...
MIM Binder
Binders for injection molding are generally composed of binders, lubricants and plasticizers. The binder is mainly the bonding powder to keep the billet with a certain strength and thermal flow properties: the lubricant is mainly to increase the lubricity between the particles, reduce the frictio...
The Chemical Composition And Heat Treatment of Vermicular Graphite Cast Iron
Vermicular graphite cast iron is a new type of cast iron material that has developed rapidly in recent years. Because most of its graphite is worm-like with a small amount of spheroids in between, its structure and performance are between spheroidal graphite cast iron and gray cast iron, and it h...
What Are the Precautions For Aluminum Bronze Heat Treatment?
Aluminum bronze with an aluminum mass fraction of less than 7.4% is a single-phase α solid solution at all temperatures, and is often used for intermediate recrystallization annealing heat treatment after pressure processing. When the mass fraction of aluminum is 7.4%~9.4%, it is a dual-phase alu...
Analysis Of Heat Treatment Deformation Control Method For Transmission Gear
The gearbox is the main component of the car and an important force unit of the car. Heavy-duty vehicles are subject to frequent impacts due to heavy loads and poor road conditions. In view of this, heavy-duty vehicle transmission gears should have mechanical properties such as high strength, hig...
Heat Treatment Of Plastic Mold
With the rapid development of my country’s plastics industry, plastic products have been widely used in every aspect of our lives, such as commodity packaging, building materials, auto parts and so on. In recent years, the demand for precision plastic products has continued to increase, and...
How to Prevent Coarse Grain Defects of Aluminum Alloy After Heat Treatment?
Coarse grains often appear in annealed and quenched plates, and “orange peel” and cracking defects appear on the surface during stamping. Quenching and annealing temperatures are too high, and the holding time is too long, especially slow heating can easily cause coarse crystals. Anti...
Prevention and Treatment of Uneven Spheroidization During Spheroidizing Annealing
The spheroidizing annealing process is mainly used for cold heading and pre-heat treatment before cold extrusion of low carbon steel, medium carbon steel, low carbon alloy structural steel and medium carbon alloy structural steel. Its purpose is to reduce the hardness, increase the plastic index ...
How to Prevent Reticulated Ferrite and Reticulated Cementite
Hypereutectoid carbon steel, high-carbon alloy tool steel heating temperature is too high during annealing heat treatment, cooling rate is too slow, will precipitate network cementite (carbide) along the austenite grain boundary. The initial forging temperature of the blank is too high, and the c...