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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...

Material Selection and Process Analysis of Automobile and Tractor Gear Parts

Automobile and tractor gears are mainly divided into transmissions and differentials. In the transmission, the gear ratio of the engine, crankshaft and main shaft gear is changed; in the differential, the gear is used to increase the torsion torque and adjust the speed of the left and right wheel...

Introduction to The Phase Structure and Properties of Fe-Fe3C Alloy

Although industrial pure iron has better plasticity, but lower strength, it is rarely used to make mechanical parts, and iron-carbon alloys are commonly used. The phase structures in iron-carbon alloys are as follows. 1. Ferrite Pure iron has a body-centered cubic lattice below 912°C. The interst...

Work Location Arrangement For Heat Treatment of Workpieces

The processing of the parts is carried out along a certain process route, and the reasonable arrangement of the position of the heat treatment process is of great significance to ensure the quality of the parts and improve the cutting performance. According to the purpose of heat treatment and th...

Commonly Used Heat Treatment Methods For Ductile Iron

According to different heat treatment purposes, the commonly used heat treatment methods for ductile cast iron are as follows: 1. High Temperature Annealing and Low Temperature Annealing. The purpose of annealing is to obtain ferrite matrix ductile iron. After casting, different amounts of pearli...