Unlock instant, AI-driven research and patent intelligence for your innovation.

Method of smelting zg35crmnsi in medium frequency induction furnace

An induction furnace and intermediate frequency technology, applied in the field of molten steel smelting, can solve the problems of complex smelting method and unstable quality, and achieve the effect of solving cold insulation defects, clear outline and improving filling ability.

Active Publication Date: 2017-07-04
SHENYANG AIRCRAFT CORP
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing smelting method is complicated and the quality is not stable

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method of smelting zg35crmnsi in medium frequency induction furnace
  • Method of smelting zg35crmnsi in medium frequency induction furnace
  • Method of smelting zg35crmnsi in medium frequency induction furnace

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Example 1 Method for Melting ZG35CrMnSi in a Medium Frequency Induction Furnace

[0028] In this embodiment, melting ZG35CrMnSi in a 120 kg intermediate frequency induction furnace is taken as an example with 35CrMnSi prefabricated ingots and returned materials.

[0029] Including the following steps:

[0030] 1) Determination of the chemical composition of the prefabricated ingots and return materials used for smelting ZG35CrMnSi, the measurement results are shown in Table 2 and Table 3.

[0031] The chemical composition of table 2 prefabricated ingot

[0032]

[0033] Table 3 The chemical composition of the returned charge

[0034]

[0035] 2) Ratio of charge: Take 50% of the prefabricated ingot (60 kg) and 50% of the returned charge (60 kg), and blast the preformed ingot and the returned charge to keep the surface clean and rust-free. Broken prefabricated ingots and returned materials, so that the size of the raw materials does not exceed 2 / 3 of the diameter...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a method for smelting ZG35CrMnSi through a medium-frequency induction furnace. The invention adopts the technical scheme as follows: determining chemical components of a prefabricated ingot and foundry returns used for smelting; calculating the use levels of the prefabricated ingot and the foundry returns according to the chemical components of ZG35CrMnSi; loading; electrifying the medium-frequency induction furnace, when liquid metal appears in the charging material, spreading a slagging constituent immediately to cover a liquid level, and from the occurrence of the liquid metal in the charging material to drawing, covering the liquid metal level always with the slagging constituent; taking the liquid metal for chemical analysis; refining; adjusting components; steel tapping after deoxygenation. According to the invention, through control over the charging material, and selection and preparation of various auxiliary materials, and control over the process during the smelting operations, the quality of molten steel is improved greatly, the metallurgical quality and the mechanical property of a casting steel component are improved, and defects such as air holes in casting steel components, slag inclusion, sand holes, cracks and the like are reduced.

Description

technical field [0001] The invention belongs to the field of molten steel smelting, and in particular relates to a method for melting ZG35CrMnSi in an intermediate frequency induction furnace. Background technique [0002] The medium frequency induction furnace is a device that uses the induction current generated in the metal furnace to heat the charge and melt it. It is an advanced melting equipment, because of its fast melting speed, high temperature of the metal solution, uniform chemical composition, and easy operation and maintenance. It is widely used in modern foundry enterprises, and gradually develops to large-scale. It can be used in the smelting of various cast iron, cast steel and non-ferrous alloys. [0003] The main task of smelting is to heat, melt and process a certain proportion of metal charge in the smelting furnace to obtain molten steel that meets the requirements. During the smelting process, the metal will undergo many physical and chemical changes, ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C21C5/52C22C38/46C22C38/24
Inventor 门娟董泽明
Owner SHENYANG AIRCRAFT CORP