It is very important for users to use indexable thread turning tool for threading in CNC lathes and machining centers. The correct and reasonable selection of thread cutting technology is very importa...
A large number of equipment such as cnc machine tools and machining centers are used in mold manufacturing. The manufacturing cycle is long. Operators are prone to fatigue. Once a failure occurs, it o...
Oval gears are widely used in automatic machinery and instrument industries, and are a type of non-circular gears. If strictly required, the elliptical gear can only be manufactured correctly on the C...
The cylinder telescopic sheath is a protective component that is installed on the oil cylinder, cylinder, hydraulic cylinder, etc., and then expands and contracts with it. It has the characteristics o...
A large number of equipment such as cnc machine tools and machining centers are used in mold manufacturing. The manufacturing cycle is long. Operators are prone to fatigue. Once a failure occurs, it o...
The Wu Steel Works has two workshops, one steelmaking workshop and the second steelmaking workshop. The second steelmaking workshop produces ordinary steel, and the first steelmaking workshop mainly p...
As we all know, adding an appropriate amount of rare earth elements to steel materials will have a significant impact on the structure and performance of the material. Usually the rare earth elements ...
In the steelmaking process, after the converter smelting is completed, the molten steel is poured into the ladle through the converter tap; Various alloy materials need to be added during the tapping ...
Quenching oil is the most widely used cooling medium in the heat treatment quenching process for a long time. Although quenching oil has many unique cooling characteristics, it also has problems such ...
1.1 Overview In 1958, H.F. Shroyer invented the technology of making metal castings with expandable foam plastic models and obtained a patent. The model used at first was made of polystyrene (EPS) boa...
Forging is the collective name of forging and stamping. It is a forming and processing method that uses the hammer, anvil, punch of the forging machine or the die to apply pressure to the blank to pro...
Shougang International Engineering Co., Ltd. has a number of patented technologies for molten iron dephosphorization and desulphurization and slagging, which can combine with the individual needs of c...
Among the various corrosions of stainless steel, the intergranular corrosion accounts for about 10%. It will reduce the bonding force between the grains. Under the action of stress, it is easy to crac...
Improving the cleanliness of the cast slab is the basis for the production of high-quality steel, and the total oxygen content of the cast slab is an important measure of the cleanliness of the molten...
Generally, clean steel refers to a steel grade that has a low content of five major impurity elements (S, P, H, O, N) in steel, and strictly controls non-metallic inclusions (oxides, sulfides) ...
It is necessary for a professional foundry person to know this scrap knowledge! Scrap steel is a general term for ferrous metal scrap in scrap metal recycling. It includes several categories such as s...
One table to understand the heat treatment of steel products: Name Heat treatment process Purpose of heat treatment 1. Annealing Heat the steel to a certain temperature, keep it for a certain time, an...
1. Appearance, size and fit of the molded product 1. Defects on the product surface are not allowed: lack of material, burnt, top white, white line, peaking, blistering, whitening (or cracking, breaki...
1. Stoma This is a small cavity formed by the gas that has not escaped during the solidification process of the metal. Its inner wall is smooth, contains gas, and has a high reflectivity to ultrasonic...
Carburizing and quenching is actually a composite process, namely carburizing + quenching. We are often used to talk about the two together, because the two processes that are completed on the same eq...