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

Method for quantitative evaluation of shatter resistance and wear resistance of ferrous alloys for steelmaking using a rotating drum

A quantitative evaluation, ferroalloy technology, applied in the direction of testing wear resistance, specific gravity measurement, testing metals, etc., can solve problems such as crush resistance, wear resistance evaluation method, and difficult to judge the influence of alloy yield

Active Publication Date: 2021-11-09
UNIV OF SCI & TECH BEIJING
View PDF11 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the detection and evaluation methods for the main element content and residual element content of ferroalloys for steelmaking are relatively complete, but there is a lack of evaluation methods for alloy properties, such as alloy shatter resistance and wear resistance, and it is difficult to judge the properties of alloys for steelmaking Influence of alloy yield during its use

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 for quantitative evaluation of shatter resistance and wear resistance of ferrous alloys for steelmaking using a rotating drum
  • Method for quantitative evaluation of shatter resistance and wear resistance of ferrous alloys for steelmaking using a rotating drum
  • Method for quantitative evaluation of shatter resistance and wear resistance of ferrous alloys for steelmaking using a rotating drum

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] Evaluation of crush resistance and wear resistance of micro-carbon ferromanganese used in a steel mill:

[0058] Step 1: Slowly put 1508.65g of micro-carbon ferromanganese into a 1L large beaker filled with water, use a balance to measure the quality of overflowing water as 217.23g, and use ρ=m / v to calculate the density of the micro-carbon ferromanganese as 6.94g / cm 3 ;

[0059] Step 2: Using the formula for the volume of a sphere, calculate m=4 / 3πr 3 ρ d , Substituting the equivalent particle size into the formula, weighing 121.87g of monolithic micro-carbon ferromanganese with a mass range of 0.45-12.26g, accounting for 11.32% of the total mass; weighing a monolithic micro-carbon ferromanganese with a mass range of 12.26-98.11g 350.22g of iron, accounting for 32.53% of the total mass; weighing 604.52g of monolithic micro-carbon ferromanganese with a mass range of 98.11-454.22g, accounting for 56.15% of the total mass;

[0060] Step 3: Put the above total mass m ...

Embodiment 2

[0075] Evaluation of crush resistance and wear resistance of ferrosilicon (45%) used in a steel mill:

[0076] Step 1: Slowly put 1392.72g of ferrosilicon into a 1L large beaker filled with water, use a balance to measure the mass of overflowing water as 270.43g, and use ρ=m / v to calculate the density of the ferrosilicon to be 5.15g / cm 3 ;

[0077] Step 2: Using the formula for the volume of a sphere, calculate m=4 / 3πr 3 ρ d , Substituting the equivalent particle size into the formula, weighing 91.22g of a monolithic ferrosilicon with a mass range of 0.34-9.10g, accounting for 9.13% of the total mass; weighing 311.84g of a monolithic ferrosilicon with a mass range of 9.10-72.80g, Accounting for 31.21% of the total mass; weighing 596.10g of monolithic ferrosilicon with a mass range of 72.80-337.03g, accounting for 59.66% of the total mass;

[0078] Step 3: Put the above total mass m into the drum 0 999.17g of ferrosilicon is placed in a type I drum with a drum height of 700...

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

PropertyMeasurementUnit
pore sizeaaaaaaaaaa
pore sizeaaaaaaaaaa
particle diameteraaaaaaaaaa
Login to View More

Abstract

The invention relates to the field of high-efficiency utilization of ferroalloys, and provides a method for quantitatively evaluating the shatter resistance and wear resistance of ferroalloys used in steelmaking by using a drum, which sequentially includes ferroalloy sample preparation, ferroalloy sample drum testing, and ferroalloy sample The crushing resistance and wear resistance of ferroalloys are evaluated after screening and particle size classification; among them, the ratio of small pore size particles after screening to the total amount of ferroalloy before entering the drum is used as the crushing resistance index, and the large The ratio of the pore size particles to the total amount of iron alloy before entering the drum is used as the wear resistance index; preferably, the ratio of the particle size<1mm alloy particles and the particle size>10mm alloy particles to the total amount of alloy entering the drum after the drum test is used to obtain the alloy Evaluation index of crush resistance and abrasion resistance. The method of the invention can conveniently, accurately and quantitatively evaluate the crush resistance and wear resistance of the alloy used for steelmaking, and has an important guiding role in improving the alloy yield and reducing alloy consumption in the steelmaking process.

Description

technical field [0001] The invention relates to the field of high-efficiency utilization of ferroalloys, in particular to a method for quantitatively evaluating the crush resistance and wear resistance of ferroalloys for steelmaking by using a drum. Background technique [0002] The yield of alloys used in steelmaking is not only related to the content of alloying elements, but also directly related to their particle size, state, addition method and use conditions. [0003] In the alloying control process of steelmaking, in order to improve the stability of the alloy yield and reduce the influence of harmful elements in the alloy on the properties of the steel, enterprises pay more attention to the content of the main components of the alloy and the content of residual elements in the alloy, such as : When high-quality steel is smelted, the alloy used for steelmaking needs to meet the requirements of high purity of alloy elements and low content of residual elements (S, P, A...

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): G01N33/20G01N3/56G01N15/02G01N9/02
CPCG01N3/56G01N9/02G01N15/0272G01N33/20G01N2009/026
Inventor 包燕平王仲亮王敏
Owner UNIV OF SCI & TECH BEIJING