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Sub-temperature annealing heat treatment process
Sub-temperature normalizing heat treatment Sub-temperature normalizing refers to the heat treatment process in which hypoeutectoid steel is heated between Ac1 and Ac3 temperature and air-cooled after heat preservation (see Figure). After the hypoeutectoid steel is hot processed, the hardness of t...
Some Opinions on Material Change in Pressure Vessel Manufacturing
How to select the correct materials is the first issue to be resolved in the design and manufacture of pressure vessels, and it is also a very important aspect. Once the material is selected incorrectly, it will leave a greater hidden danger to the safe operation of the container. Therefore, in t...
Tips for daily use and maintenance of vacuum furnace
As there are many types and types of vacuum furnaces, the maintenance and repair items are different. The maintenance and inspection content should be based on the furnace technical documents and can be divided into each furnace, daily, monthly, semi-annual and yearly Projects underway. SIMUWU ha...
Vacuum heat treatment process for bearing steel
The full name of bearing steel is rolling bearing steel. It has high compressive strength and fatigue limit, high hardness, high wear resistance and certain toughness, good hardenability, and extremely strict control of sulfur and phosphorus. It is a high-quality steel. Most of the bearing steels...
Daily emergency measures for vacuum sintering furnace
The vacuum sintering furnace is mainly used for the sintering process of semiconductor components and power rectifier devices. It can be used for vacuum sintering, gas shielded sintering and conventional sintering. It is a novel process equipment in the series of special equipment for semiconduct...
What are the precautions for the use of vacuum tempering furnace
1. Should avoid heat treatment products, especially copper, aluminum, zinc, tin, lead, etc., from contacting electric heating elements, whether it is fine powder, molten liquid or steam, etc., to prevent corrosion and formation of “pits” on the surface of the electric heating body. It...
Brazing materials and technology for shield cutters
The shield cutter is usually brazed with cemented carbide on the steel cutter body to cut rock and soil as the working edge. Principle of solder selection Solder is an important factor for the welding quality of cemented carbide tools. Solder can be divided into copper based solder and silver bas...
experimental vacuum electric furnace of sintering process
Energy saving semi continuous operation trolley type experimental electric furnace, electric baking furnace is used for precision casting shell baking, sodium silicate casting shell baking, steel ball, crusher hammer, high chromium and other high manganese steel castings, ductile iron, roll wear-...
annealing classification and selection
1. The difference between incomplete annealing and complete annealing (1) Incomplete annealing is also called incomplete crystallization annealing. The temperature is the temperature between AC1 and AC3 or AC1 and ACM in the heating channel of steel, which is cooled slowly after heat preservation...
Vacuum nitriding furnace technology description
Nitriding is to use vacuum furnace to heat the whole steel and fill a small amount of gas to produce active nitrogen atoms at low pressure, so as to infiltrate and diffuse into the steel to achieve hardening; ion nitriding is the active nitrogen produced by glow discharge. Ion bombardment heats o...