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, ...
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 reflec...
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 ...
1. Graphitization process of cast iron The formation process of graphite in cast iron is called graphitization process. The basic process of the structure of cast iron is the forma...
The 690 alloy tube used for the steam generator heat transfer tube of nuclear power plant bears the corrosion of high temperature, high pressure and water medium, alloy grain size, intergranular...
Duplex stainless steel has the same proportion of ferrite and austenite, and has excellent mechanical properties and corrosion resistance. It is widely used in petrochemical, transportati...
1. 45-high-quality carbon structural steel, the most commonly used medium-carbon quenched and tempered steel Main features: The most commonly used medium carbon quenched and tempered steel, with...
In this type of enterprise, the employees are tired, and the boss is even more tired. They are all working hard for the future of the company, and they have also thought of many ne...
Calculation Formula The calculation formula for the selection of die-casting machine: Die-casting machine clamping force (t) = 1.4 * casting projected area * ratio of the projected area of the Die C...
Any corporate meeting should look like a lady’s skirt, the shorter the better. In fact, many corporate meetings are like shrouds, long and useless, and the biggest effect is a waste of tim...
I. Introduction Due to changes in production conditions and the environment, other parameters of the casting will inevitably change. If the molding sand process cannot be adjusted ...
Three roles of team leader The team leader in the workshop is the main communication bridge between the company and the production staff. The management of the company team leader...
1 The solidification characteristics of ductile iron The different solidification methods of nodular cast iron and gray cast iron are caused by the different growth methods of nodular graphite and fla...
The tool changes the process to a certain extent. As a tool for needles and brains, if we understand its performance and use it correctly, and then improve the machining technology...
TP-01 Build a system to prevent all disasters, failures, defects, and waste TP-02 Eliminate all losses and wastes of equipment, so that the equipment reaches the highest efficiency TP-03 From the top ...
The generation of subcutaneous pores is a comprehensive reaction of improper operation of various links and procedures in the casting process. The reasons for formation are complex, and ...
The normal blast furnace operation type is characterized by smooth inner wall surface and stable slag skin. However, in actual blast furnace production, due to the influence of cha...
Continuously improving the dimensional accuracy of investment castings and reducing waste products caused by oversize has always been one of the main goals pursued by investment casting ...
In recent years, the acceleration of the globalization of the world economy has provided opportunities for the development of my country’s foundry industry, and the de...
