News Center
20
2023
-
02
What are the precautions for using ductile iron?
The development prospect of the ductile iron industry is very good. Because it brings many benefits to enterprises when in use, it is deeply favored by customers. In order to let everyone become more familiar with it, understand its daily use, and bring more benefits to enterprises, next we will talk about the small knowledge points related to the use of ductile iron, hoping to bring help to more people and bring more benefits.
Ductile iron The development prospect of this industry is very good, because it brings many benefits to enterprises when in use, so it is deeply favored by customers. In order to let everyone know more about it, understand its daily use, and bring more benefits to enterprises, next we will talk about and Ductile iron Some small knowledge points related to the use of , I hope to bring help to more people and bring more benefits.
Ductile iron 的 Strict chemical composition requirements. The carbon and silicon content required for the original molten iron is higher than that of gray cast iron, and the content of manganese, phosphorus, and sulfur in ductile iron is reduced. The molten iron temperature is higher than that of gray cast iron to compensate for the loss of molten iron temperature during spheroidization and inoculation. Perform spheroidization treatment, that is, add a spheroidizing agent to the molten iron. Add an inoculant for inoculation treatment. Ductile iron has poor fluidity and a large shrinkage rate, so it requires a higher pouring temperature and a larger pouring system size. It is necessary to reasonably apply risers, chills, and the principle of sequential solidification.
Ductile iron 在 Heat treatment Can be done when Obtain a ferrite matrix, improve plasticity and toughness, and improve cutting performance. Normalization. Obtain a pearlite matrix to increase strength and wear resistance , and at Tempering Time Obtain a tempered sorbite matrix structure with good comprehensive mechanical properties, such as spindles, crankshafts, connecting rods, etc. Isothermal quenching. Ductile iron Make parts with complex shapes and high comprehensive performance requirements obtain a lower bainite matrix structure, Ductile iron It has comprehensive mechanical properties such as high strength, high hardness, and high toughness, and avoids cracking during heat treatment, such as spindles, crankshafts, gears, etc.
The characteristic of ductile iron is that it solidifies in a mushy state, and the produced cast iron often has defects such as shrinkage cavities and porosity due to poor feeding. In order to predict these defects before casting production, casting technology has been developed at home and abroad as early as the Indian era. Ductile iron 的 Casting process numerical analogy is the use of numerical analogy technology to simulate the actual casting formation process in a computer virtual environment, including the filling process of metal liquid, the cooling and solidification process, the stress formation process, and the judgment of castings. The influence degree of the main elements in the forming process, predict the structure, performance and possible defects, and provide a basis for optimizing the process and reducing waste.
If you don’t know about it, you can come here to take a look first. Click to enter the official website to see the basic information of the company. This company is strong. You can see from the time they were established that they are experienced, and their reputation and word-of-mouth are also very good. These basic information can actually be seen online. As long as these are met, it will definitely attract customers. There are also many types of products here.
Ductile iron
Previous Page
Previous Page
Shandong Gongchen Machinery Technology Co., Ltd.
Contact QQ: 258506508
Mobile Number:15621618888
Phone:0536-7691368 7691229
Fax: 0536-7691229
Contact Email:guisongzhng8@gmail.com
Website:www.shandonggongchen.com Gongchen.China Valve Castings.China
Address: Mucun Town, Fangzi District, Weifang City, Shandong Province
Public Account