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Vacuum Detection Technology of Vacuum Annealing Furnace
1 Overview Vacuum annealing is an important process in the production of intermediate and finished products. Vacuum annealing has the functions of preventing oxidation, vacuum degassing, preventing surface embrittlement of titanium and refractory metals, uniform heating by vacuum heating, small t...
Vacuum brazing of the rear passage assembly of the flame tube
In a conventional combustion chamber, the flame tube mainly acts as an air distributor, which can divide the air entering the combustion chamber into several strands and distribute the air to a suitable position to organize combustion or cool the wall of the flame tube. In the next-generation com...
Production Management of Vacuum Quenching Furnace
With the popularity of vacuum quenching furnaces in the field of heat treatment, it has become more important to strengthen the management of vacuum quenching furnaces. In actual work, due to the inadequate management of the vacuum quenching furnace, problems with parts and equipment will be caus...
Chain link vacuum quenching and tempering
The chain rail section of the bulldozer is the support of the crawler shoe of the construction machinery bulldozer, and the current market demand is very large. Hot forging die for chain link The lifespan is the bottleneck restricting production and occupies a very important position in productio...
PCB micro-drill vacuum brazing
1 PCB Multi-hole drilling of multi-layer printed circuit boards (PCBs) by CNC machine tools has high processing efficiency, accurate hole position accuracy and high hole quality, which makes this method widely used. In actual production, in order to save the cost of cemented carbide materials and...
Vacuum heat treatment of high speed steel rolls
There are many kinds of rolls, which can be divided into 4 categories according to the hardness shown in Table 1. Hard rolls in Table 1 can also be called hot rolls, and their working conditions are equivalent to hot forging dies; extra-hard rolls can also be called cold rolls (including work ro...
Direct Quenching and Vacuum Tempering Process of Structural Steel
1 Materials and methods 1.1 Materials The test steel was alloyed with Mn-Cr-Mo-Ni-Cu composite alloy, and the optimized design was carried out, and its main chemical composition is shown in Table 1. test steel The ingot is first forged into a rectangular section billet of 70mmx200mmx250mm, air-co...
Friction ring vacuum heat treatment
The friction ring is a key part on the rock drill. Rock drilling tools are widely used in various stone works such as mines, railways, water conservancy and national defense. In use, the main parts and key parts of these products are required to have high wear resistance, good impact resistance (...
Vacuum sintering of tensile screw surface
The working temperature of the stretching screw for injection molding machine is generally above 200 C. It not only has to withstand the high pressure during injection, but also bear the abrasive effect of the melt and the frequent load starting during pre-molding. Improving the surface propertie...
Vacuum Heat Treatment in Mechanical Manufacturing
(1) Steel vacuum quenching process Vacuum quenching treatment can be regarded as a transformation process. After austenitization, the steel transforms into a cooling state, and then begins to transform into bainite or martensite. With the help of vacuum quenching, the hardness of the steel will ...