Method of reducing total oxygen in slab
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...
Author Archives: Yoyokuo
Measures to reduce the content of hydrogen, oxygen and nitrogen in steel
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!
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...
CNC processing parts processing sequence arrangement
There are often several surfaces on a cnc machine that need to be machined. These surfaces not only have certain accuracy requirements, but also have certain position requirements between the surfaces...
The most complete mold acceptance standard in history!
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...
What are the main components of CNC machine tools?
Modern cnc machine tools are CNC machine tools. They are generally composed of CNC operating system and machine tool body. The equipment specially used for processing metal or wood is mainly composed ...
Analysis and Improvement of Common Defects of Valve Castings
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...
Collection of common defects and preventive measures in carburizing and quenching
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...
In the hardware processing, the CNC machined workpiece is accurate in size and the surface finish is poor. What is the reason?
After the hardware is processed, the workpiece size is accurate and the surface finish is poor.The cause of the failure: the cutter tip of the machine tool is damaged, not sharp; the machine tool gene...
Characteristics and uses of 24 commonly used mechanical die steels
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 good ...
CNC machining cutting, how to control cutting control
Factors affecting cutting in cnc machining1 Workpiece material: The workpiece material contains two aspects. The quality of the workpiece material itself includes the alloying elements of the workpiec...
Study on Mechanical Properties of Welded Joints of Duplex Stainless Steel
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, transportation, marine en...
CNC machining features
cnc machining advantages:1. The processing quality is stable, the processing precision is high, and the repeating precision is high.2, a large number of tooling reduction, processing complex shapes of...
How To Calculate Pressure Die Casting Tonnage
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 th...
How to ensure the stability of the green sand system?
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 in time, the sand sy...
Ten skills and three responsibilities for team leaders of manufacturing enterprises to deal with production problems!
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 will directly affect...
Conditions for the realization of nodular cast iron casting without riser
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...
Three Keys of Machining Technology of Iron Castings
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 and increase the pr...
Hundreds of 6s slogans for safety production and management in foundry workshops
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 ...
Various factors affecting the dimensional stability of investment castings
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 workers at hom...